Assembled concrete structure wall-column concrete filled steel tube key connection structure and assembling method thereof
阅读说明:本技术 装配式混凝土结构墙-柱钢管混凝土键连接结构及其拼装方法 (Assembled concrete structure wall-column concrete filled steel tube key connection structure and assembling method thereof ) 是由 李明 罗元伟 左唯 吴潜 于 2019-09-29 设计创作,主要内容包括:本发明涉及预制装配式混凝土结构建筑领域,具体为一种装配式混凝土结构墙-柱钢管混凝土键连接结构及其拼装方法。主要结构包括:预制柱和预制剪力墙,预制剪力墙位于两个预制柱之间,预制柱与预制剪力墙的预制墙-柱预埋件相对应,相对设置的预制墙-柱预埋件之间通过钢管混凝土键连接。本发明预制柱和预制剪力墙结构,通过设置预制墙-柱预埋件和钢管混凝土键,完成墙-柱间连接部分剪力的传递。拼装完后可在墙柱连接缝隙处注入灌浆料,保证连接的可靠性和密实性。对于该墙-柱钢管混凝土键连接构件,强度大,可实现“强连接”的设计要求。通过实验表明,其构件初始刚度大,变形能力强,延性好,耗能能力强,整个墙体抗震性能好。(The invention relates to the field of prefabricated concrete structure buildings, in particular to a wall-column concrete-filled steel tube key connection structure with a prefabricated concrete structure and an assembling method thereof. The main structure includes: the prefabricated shear wall is positioned between the two prefabricated columns, the prefabricated columns correspond to the prefabricated wall-column embedded parts of the prefabricated shear wall, and the prefabricated wall-column embedded parts which are oppositely arranged are connected through a steel pipe concrete key. According to the prefabricated column and the prefabricated shear wall structure, the transmission of the shear force of the connecting part between the wall and the column is completed by arranging the prefabricated wall-column embedded part and the steel pipe concrete key. Grouting materials can be injected into the joint gaps of the wall columns after assembly, and the reliability and compactness of connection are guaranteed. The wall-column concrete-filled steel tube key-connected member has high strength and can meet the design requirement of strong connection. Experiments show that the component has the advantages of high initial rigidity, high deformability, high ductility, high energy consumption and high seismic performance of the whole wall body.)
1. The utility model provides an assembled concrete structure wall-post steel pipe concrete key connection structure which characterized in that includes: prefabricated post and prefabricated shear force wall, prefabricated shear force wall are located between two prefabricated posts, and prefabricated post corresponds with prefabricated wall-post built-in fitting of prefabricated shear force wall, connects through the steel pipe concrete key-type between the prefabricated wall-post built-in fitting that sets up relatively, wherein:
the prefabricated wall-column embedded part consists of an anchoring steel plate, a bottom steel plate and a shear-resistant steel plate, wherein the shear-resistant steel plate is respectively arranged on one side of the bottom steel plate in an up-down parallel manner, and the anchoring steel plate is in a U-shaped lacing wire shape and is symmetrically arranged on the other side of the bottom steel plate in an up-down manner;
the prefabricated column is composed of prefabricated column longitudinal stress bars, prefabricated column stirrups, vertical steel bar sleeves and prefabricated wall-column embedded parts poured concrete, eight prefabricated column longitudinal stress bars which are arranged in a square shape are connected through the prefabricated column stirrups to form a prefabricated column steel bar framework, the bottom of each prefabricated column longitudinal stress bar is sleeved with the vertical steel bar sleeve, the prefabricated wall-column embedded parts are uniformly welded on one side surface of the prefabricated column steel bar framework from top to bottom, the concrete is poured on the inner side and the outer side of the prefabricated column steel bar framework, the concrete is poured to the outer side edge of the prefabricated wall-column embedded parts, and the shear-resistant steel plates of the prefabricated wall-column embedded parts are exposed out of the prefabricated column steel bar framework;
the prefabricated shear wall is composed of shear wall longitudinal stress steel bars, shear wall transverse stress steel bars, shear wall constraint edge component stirrups, quincuncial steel bars and prefabricated wall-column embedded part poured concrete, two rows of shear wall longitudinal stress steel bars are oppositely arranged in parallel, each row of shear wall longitudinal stress steel bars are connected through the shear wall transverse stress steel bars, the oppositely arranged shear wall transverse stress steel bars are connected through the quincuncial steel bars, the shear wall constraint edge component stirrups are arranged at the edges of two sides of the two rows of shear wall longitudinal stress steel bars in an up-and-down parallel mode, and each shear wall constraint edge component stirrup is connected with four shear wall longitudinal stress steel bars in a binding mode to form a prefabricated shear wall steel bar framework; the prefabricated shear wall comprises a prefabricated shear wall steel bar framework, prefabricated wall-column embedded parts, an anchoring steel plate, a prefabricated shear wall steel bar framework, a prefabricated shear wall-column embedded part and a prefabricated shear wall steel bar framework, wherein the prefabricated shear wall steel bar framework is provided with the prefabricated wall-column embedded parts, the prefabricated wall-column embedded parts are arranged on the two sides of the prefabricated shear wall steel bar framework, the anchoring steel plate on one side of the prefabricated wall-column embedded part is inserted into the prefabricated shear wall steel bar framework and fixed through welding, concrete is poured on the inner side and the outer side of the prefabricated shear wall steel.
2. The fabricated concrete structure wall-column concrete filled steel tube key connecting structure according to claim 1, wherein the concrete filled steel tube key is composed of concrete poured into a rectangular steel tube, and the concrete filled steel tube key is connected with the prefabricated wall-column embedded parts at both sides by welding.
3. The fabricated concrete structure wall-column concrete filled steel tube key connecting structure according to claim 2, wherein end steel plates are welded on two sides of the concrete filled steel tube key, two shear steel plates of the prefabricated wall-column embedded part are L-shaped ribbed plates, an upper L-shaped ribbed plate and a lower L-shaped ribbed plate which are parallel form clamping grooves with a bottom steel plate respectively, the upper clamping groove and the lower clamping groove are opposite, and the end steel plates are in a plug-in fit structure; inserting end steel plates of the concrete-filled steel tube keys into corresponding clamping grooves between the precast wall-column embedded parts in the precast columns and the precast wall-column embedded parts in the precast shear walls, enabling the precast wall-column embedded parts in the precast columns to be tightly attached to the precast wall-column embedded parts in the precast shear walls and the concrete-filled steel tube keys, and completing the connection of the concrete-filled steel tube keys between the precast columns and the precast shear walls through welding and fixing;
or, removing the steel plates at the welding ends at the two sides of the concrete-filled steel tube key and the two shear-resistant steel plates of the prefabricated wall-column embedded part; and correspondingly placing the concrete-filled steel tube key between the prefabricated wall-column embedded part in the prefabricated column and the prefabricated wall-column embedded part in the prefabricated shear wall, enabling the prefabricated wall-column embedded part in the prefabricated column to be in close contact with the prefabricated wall-column embedded part in the prefabricated shear wall and the end steel plate of the concrete-filled steel tube key, and welding and fixing the contact part of the end steel plate and the bottom steel plate to complete the connection of the concrete-filled steel tube key between the prefabricated column and the prefabricated shear wall.
4. The assembled concrete structure wall-column concrete-filled tubular key connecting structure according to claim 1, wherein the prefabricated reinforced concrete blocks and the concrete filling blocks are inserted into the gaps between the prefabricated wall-column embedded parts and the prefabricated columns and the prefabricated shear walls in a shape-following manner to complete filling of the gap positions at the connecting parts of the prefabricated columns and the prefabricated shear walls.
5. The assembled concrete structure wall-column concrete-filled steel tube key connection structure according to claim 4, wherein the prefabricated reinforced concrete blocks are positioned between two adjacent steel tube concrete keys, the concrete filling blocks are respectively positioned at the top of the uppermost steel tube concrete key and at the bottom of the lowermost steel tube concrete key, two sides of the lower part of each top concrete filling block are respectively provided with a notch, two sides of the upper part of each bottom concrete filling block are respectively provided with a notch, and the notches at two sides of each concrete filling block respectively form a gap with the prefabricated shear wall and the prefabricated column.
6. The fabricated concrete structure wall-column concrete-filled steel tube key connection structure according to claim 4, wherein the prefabricated reinforced concrete blocks are composed of reinforced concrete block stirrups and reinforced concrete block longitudinal bar cast concrete, four reinforced concrete block longitudinal bars are uniformly arranged along the vertical direction, the cross sections of the four reinforced concrete block longitudinal bars are in a square arrangement structure, the outer sides of the reinforced concrete block longitudinal bars are fixedly connected through the reinforced concrete block stirrups which are horizontally arranged from top to bottom to form a steel reinforcement framework, and concrete is cast on the inner side and the outer side of the steel reinforcement framework.
7. The wall-column concrete-filled steel tube key connection structure with the prefabricated concrete structure as claimed in claim 1, wherein a prefabricated cover plate is arranged on the outer side of a connection part between the prefabricated column and the prefabricated shear wall, the prefabricated cover plate comprises cover plate transverse distribution ribs, cover plate longitudinal distribution ribs and steel base plates, and a row of parallel opposite cover plate transverse distribution ribs and a row of parallel opposite cover plate longitudinal distribution ribs are in cross binding connection to form a steel reinforcement framework net; the steel backing plates are welded on two sides of the cover plate longitudinal distribution ribs respectively between two adjacent cover plate transverse distribution ribs on the upper portion of the steel reinforcement framework net, the steel backing plates are welded on two sides of the cover plate longitudinal distribution ribs respectively between two adjacent cover plate transverse distribution ribs on the lower portion of the steel reinforcement framework net, concrete is poured on the inner side and the outer side of the steel reinforcement framework net, two side faces of the steel backing plate with a central hole are exposed out of the outer side of the steel reinforcement framework net, and the position of a center hole of each steel backing plate corresponds to the position of a gap between a prefabricated shear wall, a prefabricated column and a concrete filling.
8. A method for assembling a wall-column concrete filled steel tube key connecting structure of a prefabricated concrete structure according to any one of claims 1 to 7, which comprises the following steps:
(1) hoisting the prefabricated columns and the prefabricated shear wall, namely hoisting the two prefabricated columns and one prefabricated shear wall in place, wherein the prefabricated shear wall is positioned between the two prefabricated columns;
(2) inserting a concrete-filled steel tube key into a corresponding position between the prefabricated wall-column embedded part in the prefabricated column and the prefabricated wall-column embedded part in the prefabricated shear wall, and fitting the left edge and the right edge of the concrete-filled steel tube key, so that the prefabricated wall-column embedded part in the prefabricated column is tightly contacted with the prefabricated wall-column embedded part in the prefabricated shear wall and the concrete-filled steel tube key, and then welding to complete the connection of the concrete-filled steel tube key between the prefabricated column and the prefabricated shear wall;
(3) inserting the prefabricated reinforced concrete block and the concrete filling block into the vacant positions among the prefabricated wall-column embedded part, the prefabricated column and the prefabricated shear wall along with the shapes of the vacant positions to be completely fit with each other, and filling the vacant positions of the connecting parts of the prefabricated column and the prefabricated shear wall;
(4) the method comprises the following steps that an outer side cover plate of a connecting part between a prefabricated column and a shear wall is installed outside a corresponding position of the connecting part between the prefabricated column and the prefabricated shear wall, the outer side cover plate of the connecting part between the prefabricated column and the prefabricated shear wall is placed at a corresponding vacant position of the connecting part, then penetrating steel bars sequentially penetrate steel base plates on the outer side cover plates of the connecting part between the front and rear corresponding prefabricated columns and the prefabricated shear wall, and then nuts are used for fixing two ends of the penetrating steel bars, so that the outer side cover plate of the connecting part between the column and the shear wall is fixedly installed;
the length of the inserted reinforcing steel bars is the distance between the outer side surfaces of the steel base plates on the outer side prefabricated cover plates at the connecting parts between the prefabricated columns and the prefabricated shear walls corresponding to the front and the rear parts and the thickness of the fixing nuts corresponding to the two sides;
(5) after the cover plates on the two sides are fixed stably, grouting material is injected along the gap at the upper end of the connecting part of the prefabricated column and the prefabricated shear wall until the gap is filled, and then the gap is leveled;
(6) plaster is smeared on the concave part of the steel base plate on the prefabricated cover plate on the outer side of the connecting part of the prefabricated column and the prefabricated shear wall, so that the concave part is smooth, and the connection between the prefabricated column and the prefabricated shear wall is completed.
9. The assembling method of the assembled concrete structure wall-column concrete-filled steel tube key connection structure according to claim 8, wherein the manufacturing process of the prefabricated column is as follows:
(1) inserting the lower end of the longitudinal stress rib of the prefabricated column into the vertical steel bar sleeve to complete the installation of the vertical steel bar sleeve; the upper end of the longitudinal stress rib of the prefabricated column is reserved with a part, and the length of the reserved part is smaller than the height of the vertical steel bar sleeve of the prefabricated column;
(2) arranging eight prefabricated column longitudinal stress bars in a square shape, binding the prefabricated column stirrups to form a prefabricated column reinforcement framework, and finishing the reinforcement arrangement of the prefabricated columns;
(3) uniformly arranging the prefabricated wall-column embedded parts on one side surface of a prefabricated column reinforcement framework from top to bottom in parallel, and welding the anchoring steel plates of the prefabricated wall-column embedded parts on the prefabricated column reinforcement framework of the prefabricated column to finish the arrangement of the prefabricated wall-column embedded parts;
(4) and (3) supporting a template outside a precast column reinforcement framework in the precast column, pouring concrete, pouring the concrete in the template to the outer side edge of the precast wall-column embedded part, and removing the template after the concrete is solidified to finish the manufacturing of the precast column.
10. The assembling method of the assembled concrete structure wall-column concrete filled steel tube key connection structure according to claim 8, wherein the manufacturing process of the prefabricated shear wall is as follows:
(1) longitudinal stress bars of the shear wall are oppositely arranged in parallel along the vertical direction, and two rows of longitudinal stress bars on the outer side edge of the shear wall are bound with the stirrups of the shear wall restraining edge components in an up-down parallel mode;
(2) arranging and binding transverse stress bars of the shear wall, and binding and connecting the transverse stress bars of the oppositely arranged shear wall through the quincuncial bars to form a prefabricated shear wall reinforcement cage;
(3) uniformly arranging prefabricated wall-column embedded parts on two side surfaces of a prefabricated shear wall steel bar framework from top to bottom in parallel, welding anchoring steel plates of the prefabricated wall-column embedded parts on the prefabricated shear wall steel bar framework of the prefabricated shear wall, and vertically and uniformly distributing the prefabricated wall-column embedded parts of the prefabricated shear wall on the edges of two side edges of the prefabricated shear wall steel bar framework, wherein the prefabricated wall-column embedded parts correspond to the prefabricated wall-column embedded parts of the prefabricated columns, so that the arrangement of the prefabricated wall-column embedded parts is completed;
(4) erecting a template on the outer side of the prefabricated shear wall steel reinforcement framework, and pouring concrete, wherein the concrete is poured to the outer side surface of the prefabricated wall-column embedded part in the template; and (5) removing the template after the concrete is solidified, and finishing the manufacturing of the prefabricated shear wall.
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of prefabricated concrete structure buildings, in particular to a wall-column concrete-filled steel tube key connection structure with a prefabricated concrete structure and an assembling method thereof.
[ background of the invention ]
The prefabricated concrete structure has the advantages of high construction speed, energy conservation, environmental protection, small field wet operation amount and the like, and is rapidly developed in China in recent years. A concrete frame-shear wall structure (frame shear structure for short) is one of the main structural forms of a fabricated concrete structure. Therefore, how to disassemble the connecting frame shear structure and form a fabricated system becomes an important issue concerned by civil engineers. In the past, the method of connecting the wall and the column mainly adopts steel bars and then pouring concrete or grouting material at the connecting part, the construction process is complicated, the construction speed is slow, the maintenance period is long, and the quality of the connecting part is not easy to guarantee. Therefore, the inventor has invented a key groove connecting structure of an assembled concrete frame shear wall (patent number: CN201721289243.7), a staggered layer connecting structure of an assembled frame shear structure column (patent number: CN201721656565.0), a staggered layer connecting structure of an assembled frame shear structure wall (patent number: CN201721657276.2) and a bending shear type combined key groove connecting structure of an assembled frame shear structure (patent number: CN201721282484.9), which meet the engineering requirements, but have lower rigidity and larger horizontal deformation during the action of a horizontal earthquake. In order to improve the problems, the inventor provides a more practical horizontal connecting structure and assembling method of the assembly type concrete frame shear system.
[ summary of the invention ]
The invention aims to provide a wall-column concrete-filled steel tube key connection structure with an assembled concrete structure and an assembling method thereof, which greatly improve the construction speed and the construction quality on the premise of ensuring the connection among various precast concrete components.
The technical scheme of the invention is as follows:
a fabricated concrete structure wall-column concrete filled steel tube key connecting structure, comprising: prefabricated post and prefabricated shear force wall, prefabricated shear force wall are located between two prefabricated posts, and prefabricated post corresponds with prefabricated wall-post built-in fitting of prefabricated shear force wall, connects through the steel pipe concrete key-type between the prefabricated wall-post built-in fitting that sets up relatively, wherein:
the prefabricated wall-column embedded part consists of an anchoring steel plate, a bottom steel plate and a shear-resistant steel plate, wherein the shear-resistant steel plate is respectively arranged on one side of the bottom steel plate in an up-down parallel manner, and the anchoring steel plate is in a U-shaped lacing wire shape and is symmetrically arranged on the other side of the bottom steel plate in an up-down manner;
the prefabricated column is composed of prefabricated column longitudinal stress bars, prefabricated column stirrups, vertical steel bar sleeves and prefabricated wall-column embedded parts poured concrete, eight prefabricated column longitudinal stress bars which are arranged in a square shape are connected through the prefabricated column stirrups to form a prefabricated column steel bar framework, the bottom of each prefabricated column longitudinal stress bar is sleeved with the vertical steel bar sleeve, the prefabricated wall-column embedded parts are uniformly welded on one side surface of the prefabricated column steel bar framework from top to bottom, the concrete is poured on the inner side and the outer side of the prefabricated column steel bar framework, the concrete is poured to the outer side edge of the prefabricated wall-column embedded parts, and the shear-resistant steel plates of the prefabricated wall-column embedded parts are exposed out of the prefabricated column steel bar framework;
the prefabricated shear wall is composed of shear wall longitudinal stress steel bars, shear wall transverse stress steel bars, shear wall constraint edge component stirrups, quincuncial steel bars and prefabricated wall-column embedded part poured concrete, two rows of shear wall longitudinal stress steel bars are oppositely arranged in parallel, each row of shear wall longitudinal stress steel bars are connected through the shear wall transverse stress steel bars, the oppositely arranged shear wall transverse stress steel bars are connected through the quincuncial steel bars, the shear wall constraint edge component stirrups are arranged at the edges of two sides of the two rows of shear wall longitudinal stress steel bars in an up-and-down parallel mode, and each shear wall constraint edge component stirrup is connected with four shear wall longitudinal stress steel bars in a binding mode to form a prefabricated shear wall steel bar framework; the prefabricated shear wall comprises a prefabricated shear wall steel bar framework, prefabricated wall-column embedded parts, an anchoring steel plate, a prefabricated shear wall steel bar framework, a prefabricated shear wall-column embedded part and a prefabricated shear wall steel bar framework, wherein the prefabricated shear wall steel bar framework is provided with the prefabricated wall-column embedded parts, the prefabricated wall-column embedded parts are arranged on the two sides of the prefabricated shear wall steel bar framework, the anchoring steel plate on one side of the prefabricated wall-column embedded part is inserted into the prefabricated shear wall steel bar framework and fixed through welding, concrete is poured on the inner side and the outer side of the prefabricated shear wall steel.
The prefabricated concrete structure wall-column concrete-filled steel tube key connection structure is characterized in that a concrete-filled steel tube key is formed by injecting concrete into a rectangular steel tube, and the concrete-filled steel tube key is connected with prefabricated wall-column embedded parts on two sides through welding.
The assembled concrete structure wall-column concrete-filled steel tube key connection structure is characterized in that end steel plates are welded on two sides of a concrete-filled steel tube key, two shear-resistant steel plates of a prefabricated wall-column embedded part are L-shaped ribbed plates, the upper and lower parallel L-shaped ribbed plates respectively form clamping grooves with a bottom steel plate, the upper and lower clamping grooves are opposite, and the end steel plates are inserted and matched; inserting end steel plates of the concrete-filled steel tube keys into corresponding clamping grooves between the precast wall-column embedded parts in the precast columns and the precast wall-column embedded parts in the precast shear walls, enabling the precast wall-column embedded parts in the precast columns to be tightly attached to the precast wall-column embedded parts in the precast shear walls and the concrete-filled steel tube keys, and completing the connection of the concrete-filled steel tube keys between the precast columns and the precast shear walls through welding and fixing;
or, removing the steel plates at the welding ends at the two sides of the concrete-filled steel tube key and the two shear-resistant steel plates of the prefabricated wall-column embedded part; and correspondingly placing the concrete-filled steel tube key between the prefabricated wall-column embedded part in the prefabricated column and the prefabricated wall-column embedded part in the prefabricated shear wall, enabling the prefabricated wall-column embedded part in the prefabricated column to be in close contact with the prefabricated wall-column embedded part in the prefabricated shear wall and the end steel plate of the concrete-filled steel tube key, and welding and fixing the contact part of the end steel plate and the bottom steel plate to complete the connection of the concrete-filled steel tube key between the prefabricated column and the prefabricated shear wall.
According to the wall-column concrete-filled tube key connection structure with the prefabricated concrete structure, the prefabricated reinforced concrete blocks and the concrete filling blocks are inserted into gaps among the prefabricated wall-column embedded parts, the prefabricated columns and the prefabricated shear wall along with the shapes of the prefabricated reinforced concrete blocks and the concrete filling blocks, and filling of the gap positions of the connection positions of the prefabricated columns and the prefabricated shear wall is completed.
The prefabricated concrete structure wall-column concrete-filled steel tube key connection structure is characterized in that a prefabricated reinforced concrete block is located between two adjacent concrete-filled steel tube keys from top to bottom, concrete filling blocks are located at the top of the uppermost concrete-filled steel tube key and the bottom of the lowermost concrete-filled steel tube key respectively, notches are formed in two sides of the lower portion of the top concrete filling block respectively, notches are formed in two sides of the upper portion of the bottom concrete filling block respectively, and gaps are formed between the notches in two sides of each concrete filling block and a prefabricated shear wall and a prefabricated column respectively.
Assembled concrete structure wall-post steel pipe concrete key-type connection structure, prefabricated reinforced concrete piece is indulged the muscle by reinforced concrete piece stirrup, reinforced concrete piece and is pour the concrete and constitute, four reinforced concrete pieces are indulged the muscle and are followed vertical even setting, its transversal square structure of arranging of personally submitting, reinforced concrete piece indulges the outside of muscle and connects fixedly through the reinforced concrete piece stirrup that upper and lower level arranged, form steel reinforcement framework, concrete placement in steel reinforcement framework's inboard and outside.
The prefabricated cover plate comprises cover plate transverse distribution ribs, cover plate longitudinal distribution ribs and steel base plates, and a row of parallel opposite cover plate transverse distribution ribs and a row of parallel opposite cover plate longitudinal distribution ribs are in cross binding connection to form a steel reinforcement framework net; the steel backing plates are welded on two sides of the cover plate longitudinal distribution ribs respectively between two adjacent cover plate transverse distribution ribs on the upper portion of the steel reinforcement framework net, the steel backing plates are welded on two sides of the cover plate longitudinal distribution ribs respectively between two adjacent cover plate transverse distribution ribs on the lower portion of the steel reinforcement framework net, concrete is poured on the inner side and the outer side of the steel reinforcement framework net, two side faces of the steel backing plate with a central hole are exposed out of the outer side of the steel reinforcement framework net, and the position of a center hole of each steel backing plate corresponds to the position of a gap between a prefabricated shear wall, a prefabricated column and a concrete filling.
The assembling method of the assembled concrete structure wall-column concrete filled steel tube key connection structure comprises the following steps:
(1) hoisting the prefabricated columns and the prefabricated shear wall, namely hoisting the two prefabricated columns and one prefabricated shear wall in place, wherein the prefabricated shear wall is positioned between the two prefabricated columns;
(2) inserting a concrete-filled steel tube key into a corresponding position between the prefabricated wall-column embedded part in the prefabricated column and the prefabricated wall-column embedded part in the prefabricated shear wall, and fitting the left edge and the right edge of the concrete-filled steel tube key, so that the prefabricated wall-column embedded part in the prefabricated column is tightly contacted with the prefabricated wall-column embedded part in the prefabricated shear wall and the concrete-filled steel tube key, and then welding to complete the connection of the concrete-filled steel tube key between the prefabricated column and the prefabricated shear wall;
(3) inserting the prefabricated reinforced concrete block and the concrete filling block into the vacant positions among the prefabricated wall-column embedded part, the prefabricated column and the prefabricated shear wall along with the shapes of the vacant positions to be completely fit with each other, and filling the vacant positions of the connecting parts of the prefabricated column and the prefabricated shear wall;
(4) the method comprises the following steps that an outer side cover plate of a connecting part between a prefabricated column and a shear wall is installed outside a corresponding position of the connecting part between the prefabricated column and the prefabricated shear wall, the outer side cover plate of the connecting part between the prefabricated column and the prefabricated shear wall is placed at a corresponding vacant position of the connecting part, then penetrating steel bars sequentially penetrate steel base plates on the outer side cover plates of the connecting part between the front and rear corresponding prefabricated columns and the prefabricated shear wall, and then nuts are used for fixing two ends of the penetrating steel bars, so that the outer side cover plate of the connecting part between the column and the shear wall is fixedly installed;
the length of the inserted reinforcing steel bars is the distance between the outer side surfaces of the steel base plates on the outer side prefabricated cover plates at the connecting parts between the prefabricated columns and the prefabricated shear walls corresponding to the front and the rear parts and the thickness of the fixing nuts corresponding to the two sides;
(5) after the cover plates on the two sides are fixed stably, grouting material is injected along the gap at the upper end of the connecting part of the prefabricated column and the prefabricated shear wall until the gap is filled, and then the gap is leveled;
(6) plaster is smeared on the concave part of the steel base plate on the prefabricated cover plate on the outer side of the connecting part of the prefabricated column and the prefabricated shear wall, so that the concave part is smooth, and the connection between the prefabricated column and the prefabricated shear wall is completed.
The assembling method of the prefabricated concrete structure wall-column concrete filled steel tube key connection structure comprises the following manufacturing processes of:
(1) inserting the lower end of the longitudinal stress rib of the prefabricated column into the vertical steel bar sleeve to complete the installation of the vertical steel bar sleeve; the upper end of the longitudinal stress rib of the prefabricated column is reserved with a part, and the length of the reserved part is smaller than the height of the vertical steel bar sleeve of the prefabricated column;
(2) arranging eight prefabricated column longitudinal stress bars in a square shape, binding the prefabricated column stirrups to form a prefabricated column reinforcement framework, and finishing the reinforcement arrangement of the prefabricated columns;
(3) uniformly arranging the prefabricated wall-column embedded parts on one side surface of a prefabricated column reinforcement framework from top to bottom in parallel, and welding the anchoring steel plates of the prefabricated wall-column embedded parts on the prefabricated column reinforcement framework of the prefabricated column to finish the arrangement of the prefabricated wall-column embedded parts;
(4) and (3) supporting a template outside a precast column reinforcement framework in the precast column, pouring concrete, pouring the concrete in the template to the outer side edge of the precast wall-column embedded part, and removing the template after the concrete is solidified to finish the manufacturing of the precast column.
The assembling method of the prefabricated concrete structure wall-column concrete filled steel tube key connection structure comprises the following manufacturing processes of:
(1) longitudinal stress bars of the shear wall are oppositely arranged in parallel along the vertical direction, and two rows of longitudinal stress bars on the outer side edge of the shear wall are bound with the stirrups of the shear wall restraining edge components in an up-down parallel mode;
(2) arranging and binding transverse stress bars of the shear wall, and binding and connecting the transverse stress bars of the oppositely arranged shear wall through the quincuncial bars to form a prefabricated shear wall reinforcement cage;
(3) uniformly arranging prefabricated wall-column embedded parts on two side surfaces of a prefabricated shear wall steel bar framework from top to bottom in parallel, welding anchoring steel plates of the prefabricated wall-column embedded parts on the prefabricated shear wall steel bar framework of the prefabricated shear wall, and vertically and uniformly distributing the prefabricated wall-column embedded parts of the prefabricated shear wall on the edges of two side edges of the prefabricated shear wall steel bar framework, wherein the prefabricated wall-column embedded parts correspond to the prefabricated wall-column embedded parts of the prefabricated columns, so that the arrangement of the prefabricated wall-column embedded parts is completed;
(4) erecting a template on the outer side of the prefabricated shear wall steel reinforcement framework, and pouring concrete, wherein the concrete is poured to the outer side surface of the prefabricated wall-column embedded part in the template; and (5) removing the template after the concrete is solidified, and finishing the manufacturing of the prefabricated shear wall.
The invention has the advantages and beneficial effects that:
1. according to the prefabricated column and the prefabricated shear wall, the embedded part and the steel pipe concrete key are arranged at the connecting part of the prefabricated shear wall and the prefabricated column, and the transmission of the wall-column connecting shear force is completed in a welding mode, so that the integrity and the shock resistance of the whole structure are further enhanced.
2. The parts with high precision requirements, including core prefabricated components such as prefabricated columns, prefabricated shear walls, concrete-filled steel tube keys and the like, are manufactured in a factory. The difficulty requirement of on-site assembling and welding is not high, the learning cost of constructors can be saved, and the construction efficiency is greatly improved.
3. The invention adopts a large amount of assembling and welding operation, greatly reduces the operation compared with the original cast-in-place operation, and has the advantages of energy saving, environmental protection, economy, safety and the like of an assembled concrete structure.
Drawings
Fig. 1 is a three-dimensional view of a prefabricated column vertical rebar sleeve.
Fig. 2 is a three-dimensional view of a concrete filled steel tube key.
FIG. 3 is a three-dimensional view of a prefabricated wall-column embedment.
Fig. 4 is a three-dimensional view of the arrangement of the reinforcing cage of the prefabricated column.
Fig. 5 is a three-dimensional view of the prefabricated wall-column embedded part and the prefabricated column reinforcement cage after installation.
FIG. 6 is a three-dimensional view of a prefabricated column.
Fig. 7 is a three-dimensional layout of a reinforcement cage of a prefabricated shear wall.
Fig. 8 is a three-dimensional view of the prefabricated wall-column embedded part and the prefabricated shear wall steel reinforcement framework after being installed.
FIG. 9 is a three-dimensional view of a precast shear wall.
Fig. 10 is a three-dimensional view of the prefabricated column and the prefabricated shear wall combination after the hoisting is finished.
Fig. 11 is a three-dimensional view of a concrete filled steel tube key installation process.
Fig. 12 is a three-dimensional view of the concrete filled steel tube key after installation.
Fig. 13 is a three-dimensional view of the arrangement of the reinforcement cage of the reinforced concrete block.
Fig. 14 is a three-dimensional view of a prefabricated reinforced concrete block.
FIG. 15 is a three-dimensional view of the installation process of the precast reinforced concrete block.
FIG. 16 is a three-dimensional view of a precast concrete filled block.
FIG. 17 is a three-dimensional view of a process for prefabricating a filled concrete block.
Fig. 18 is a three-dimensional view of the completed installation of the precast reinforced concrete block and the precast filled concrete block.
Fig. 19 is a three-dimensional view of the reinforcement bar arrangement of the cover plate.
Fig. 20 is a three-dimensional view of a prefabricated cover panel.
Fig. 21 is a three-dimensional view of the cover plate installation process.
Fig. 22 is a three-dimensional view of the cover plate installation completion.
Fig. 23 is a three-dimensional view of a prefabricated wall-column after gypsum trowelling.
FIG. 24 is a three-dimensional view of another embodiment concrete filled steel tube key.
FIG. 25 is a three-dimensional view of another embodiment prefabricated wall-column embedment.
FIG. 26 is a three-dimensional view of another embodiment concrete filled steel tube key and precast wall-column embedment combined link.
FIG. 27 is a three-dimensional view of yet another embodiment prefabricated wall-column embedment.
FIG. 28 is a three-dimensional view of a connector of yet another embodiment concrete filled steel tube key and precast wall-column embedment combination.
In the figure, 1 a vertical steel bar sleeve; 2, a steel pipe concrete key; 3, concrete; 4, shearing resistant steel plates; 5, a bottom steel plate; 6 anchoring a steel plate; 7 prefabricating a column longitudinal stress rib; 8, prefabricating column stirrups; 9 prefabricating a wall-column embedded part; 10, prefabricating a column; 11 longitudinal stress ribs of the shear wall; 12 transverse stress ribs of the shear wall; 13 the shear wall restrains the edge member stirrup; 14, a quincuncial rib; 15 prefabricating a shear wall; 16 reinforced concrete block stirrups; 17 longitudinal bars of the reinforced concrete block; 18 prefabricating a reinforced concrete block; 19 concrete filling blocks; 20, longitudinally distributing ribs on the cover plate; 21 a steel backing plate; 22 transverse distribution ribs of the cover plate; 23, prefabricating a cover plate; a 24-end steel plate; 25L-shaped rib plates; 26 gaps; 27 is notched.
Detailed Description
As shown in fig. 1-22, the wall-column concrete-filled steel tube key connection structure of the prefabricated concrete structure of the invention mainly comprises prefabricated components such as prefabricated wall-column embedded
Firstly, as shown in fig. 3, the concrete structure and manufacturing process of the prefabricated wall-column embedded
the concrete structure of the prefabricated wall-column embedded
The manufacturing process of the prefabricated wall-column embedded
(1) the
(2) The anchoring
Structural description of prefabricated wall-column embedment 9:
(1) when the thickness of the
(2) In order to meet the actual construction requirements, the distance between the upper edge and the lower edge of the
(II) as shown in FIG. 2, concrete structure and manufacturing process of the steel tube
concrete-filled
The manufacturing process of the steel tube
(1) cutting the rectangular steel pipe according to the planned size;
(2) and after the rectangular steel pipe is cut, injecting concrete 3 and tamping to finish the manufacture of the concrete-filled
Structural description of concrete-filled steel tube bond 2:
in order to ensure the firmness of the subsequent welding process, the height of the concrete 3 in the concrete-filled steel tube key can be slightly lower than the edge of the rectangular steel tube.
(III) as shown in FIG. 1, FIG. 3-FIG. 6, the concrete structure and manufacturing process of the
the concrete structure of the prefabricated column 10: the
The fabrication process of the
(1) inserting the lower end of the
(2) arranging eight prefabricated column
(3) uniformly arranging the prefabricated wall-column embedded
(4) and finally, supporting a template outside the precast column reinforcement framework in the
Structural description of prefabricated column 10:
(1) a part of the upper end of the prefabricated column
(2) an anchoring
(3) in the actual engineering, in order to avoid concrete damage of the
(IV) as shown in fig. 7 to 9, the concrete structure and manufacturing process of the
the concrete structure of the
The manufacturing process of the
(1) firstly, longitudinal stress bars 11 of the shear wall are oppositely arranged along the vertical direction in parallel, and two rows of longitudinal stress bars 11 on the outer side edge of the shear wall are bound with the shear wall restraining edge member stirrups 13 in parallel up and down.
(2) Then arranging and binding transverse stress bars 12 of the shear wall, and binding and connecting the oppositely arranged transverse stress bars 11 of the shear wall through the quincuncial ribs 14 to form a prefabricated shear wall reinforcement framework;
(3) secondly, the prefabricated wall-column embedded
(4) finally, a formwork is erected on the outer side of the prefabricated shear wall steel reinforcement framework, concrete is poured, and the concrete is poured to the outer side edge of the prefabricated wall-column embedded
Structural description of the prefabricated shear wall 15:
(1) the anchoring
(2) in factory production, concrete should be poured to the outside surface of the precast wall-column embedded
(3) the arrangement of the precast wall-column embedded
As shown in fig. 19 to 22, the concrete structure and manufacturing process of the
the concrete structure of the prefabricated cover plate 23: a prefabricated cover plate 23 is arranged on the outer side of the connecting part between the prefabricated column 10 and the prefabricated shear wall 15, the prefabricated cover plate 23 is composed of cover plate transverse distribution ribs 22, cover plate longitudinal distribution ribs 20 and steel backing plates 21, and a row of cover plate transverse distribution ribs 22 and a row of cover plate longitudinal distribution ribs 20 are in cross binding connection to form a steel reinforcement framework net; the steel reinforcement cage net is characterized in that steel base plates 21 are welded between two adjacent cover plate transverse distribution ribs 22 on the upper portion of the steel reinforcement cage net and on two sides of the cover plate longitudinal distribution ribs 20 respectively, steel base plates 21 are welded between two adjacent cover plate transverse distribution ribs 22 on the lower portion of the steel reinforcement cage net and on two sides of the cover plate longitudinal distribution ribs 20 respectively, concrete is poured on the inner side and the outer side of the steel reinforcement cage net, the outer side of the steel reinforcement cage net is exposed on two side faces of the steel base plate 21 with a central hole, and the position of a central hole of each steel base plate 21 corresponds to the position of a gap 26 between each prefabricated shear wall 15 and each prefabricated column 10.
The manufacturing process of the outer
(1) firstly, binding cover plate
(2) and then, erecting a formwork on the outer side of the steel reinforcement framework net, and pouring concrete to finish the manufacture of the prefabricated cover plate on the outer side of the connecting part between the
Description of the structure of the prefabricated cover panel 23:
(1) the
(2) and (4) removing the template after the concrete reaches the expected strength, and ensuring the strength requirement of the member.
The main prefabricated parts are prefabricated in a factory and then transported to a construction site for assembly, and the specific hoisting process is as follows:
firstly, as shown in fig. 10, the two
Secondly, as shown in fig. 10 to 12, a concrete-filled
And thirdly, as shown in fig. 13 to 18, inserting prefabricated reinforced concrete blocks 18 and concrete filling blocks 19 into the gaps between the prefabricated wall-column embedded
The prefabricated reinforced concrete blocks 18 are located between two adjacent steel pipe
As shown in fig. 13-14, the prefabricated reinforced
And (IV) as shown in fig. 19 to 22, outside the corresponding positions of the connection parts of the
And (V) as shown in fig. 22, after all the parts are fixedly installed, grouting material is injected along the uppermost gap of the connecting part of the
Sixthly, as shown in fig. 22 to 23, plaster is smeared on the concave part of the
The implementation result shows that:
(1) the main process of the invention is the field installation and connection of the prefabricated parts, and in order to make the structural connection parts of the prefabricated parts better fit, a very small amount of wet operation is needed, so that the time required by the field construction of a construction site is greatly shortened, meanwhile, the construction speed can be greatly improved, and the cost is saved.
(2) According to the prefabricated column and the prefabricated shear wall, the prefabricated wall-column embedded part and the steel pipe concrete key are arranged at the connecting part of the prefabricated shear wall and the prefabricated column, so that the transmission of the shear force of the connecting part between the wall and the column is completed. The wall-column concrete-filled steel tube key-connected member has high strength and can meet the design requirement of strong connection. Experiments show that the member has strong deformation capability, good ductility and strong energy consumption capability, the whole wall body has good seismic performance, and the overall performance is obviously superior to that of a cast-in-place member.
(3) And parts with high manufacturing precision requirements, including the prefabricated columns, the prefabricated shear walls, the prefabricated wall-column embedded parts, the concrete-filled steel tube keys, the reinforced concrete blocks and the concrete filling blocks, are manufactured in a factory. The difficulty requirement of on-site assembly is not high, the learning cost of constructors can be saved, and meanwhile, the construction efficiency is greatly improved.
(4) For the fabricated structure, a large amount of assembling operation is adopted, the amount of operation is greatly reduced compared with the original cast-in-place operation, the fabricated concrete structure has the advantages of meeting the requirements of energy conservation, environmental protection, economic safety, green building development and the like, and has better engineering application prospect.
Accessory part
In order to make the invention have wider coverage and stronger scientificity, the auxiliary parts are added.
The first condition is as follows: as shown in fig. 24,
Installation description: as shown in fig. 24-26, the
The installation process comprises the following steps: the installation process is identical except for the installation description above.
Case two: as shown in fig. 24,
Installation description: as shown in fig. 24 and 27-28, a concrete-filled
The installation process comprises the following steps: the installation process is identical except for the installation description above.
The above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and those of ordinary skill in the art should understand that the present invention is described in detail with reference to the above embodiments. In practice, modifications and equivalents of the embodiments of the invention may be made without departing from the spirit and scope of the invention and are intended to be included within the scope of the claims.
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