阅读说明：本技术 一种自复位混凝土框架结构钢板耗能填充墙及其装配方法 (Self-resetting concrete frame structure steel plate energy-consumption infilled wall and assembling method thereof ) 是由 蔡小宁 巩妮娜 朱向阳 耿方方 武江传 陈韵竹 赵桂 胡永涛 马煜征 高兆福 魏 于 2020-06-09 设计创作，主要内容包括：本发明涉及填充墙装配技术领域,具体涉及一种自复位混凝土框架结构钢板耗能填充墙及其装配方法,包括预制混凝土梁、预制混凝土柱、砌体填充墙、耗能钢板、梁侧固定压板以及柱侧固定压板,预制混凝土梁垂直安装于预制混凝土柱的顶端右侧壁,预制混凝土梁与预制混凝土柱的内部均预留有预应力筋孔道,且两条预应力筋孔道在水平方向上前后首尾相连；本发明能将填充墙结构的非线性变形集中于连接处,填充墙的多个主体部分之间保持弹性,利用无粘结预应力筋的回弹作用,结构残余变形很小,可实现震后结构功能的迅速恢复；同时在砌体填充墙的两侧均设置有耗能钢板,增强了填充墙结构的耗能能力,明显改善了抗震性能,控制结构在地震作用下的最大变形。(The invention relates to the technical field of infilled wall assembly, in particular to a self-resetting concrete frame structure steel plate energy-consumption infilled wall and an assembling method thereof, wherein the self-resetting concrete frame structure steel plate energy-consumption infilled wall comprises a precast concrete beam, a precast concrete column, a masonry infilled wall, an energy-consumption steel plate, a beam side fixed pressing plate and a column side fixed pressing plate, the precast concrete beam is vertically installed on the right side wall of the top end of the precast concrete column, prestressed tendon ducts are reserved in the precast concrete beam and the precast concrete column, and the two prestressed tendon ducts are connected end to end in the front and back direction in the horizontal; the invention can concentrate the nonlinear deformation of the infilled wall structure at the connecting part, keep elasticity among a plurality of main body parts of the infilled wall, utilize the rebound effect of the unbonded prestressed tendons, the residual deformation of the structure is very small, can realize the rapid recovery of the structure function after the earthquake; meanwhile, energy-consuming steel plates are arranged on two sides of the masonry infilled wall, so that the energy-consuming capacity of the infilled wall structure is enhanced, the anti-seismic performance is obviously improved, and the maximum deformation of the structure under the action of an earthquake is controlled.)

1. The utility model provides a from concrete frame structure steel sheet power consumption infilled wall that restores to throne, includes precast concrete roof beam (1), precast concrete post (2), brickwork infilled wall (3), power consumption steel sheet (4), roof beam side fixed pressing plate (5) and post side fixed pressing plate (6), its characterized in that: the precast concrete beam (1) is vertically arranged on the right side wall of the top end of the precast concrete column (2), a prestressed tendon pore passage (7) is reserved in each of the precast concrete beam (1) and the precast concrete column (2), and the two prestressed tendon pore passages (7) are connected end to end in the front and back direction in the horizontal direction; an unbonded prestressed tendon (8) is arranged inside the two prestressed tendon ducts (7) in a penetrating mode, and the left end of the unbonded prestressed tendon (8) is anchored on the left side wall of the precast concrete column (2); the beam side fixed pressing plates (5) are respectively arranged on the front side wall and the rear side wall of the bottom end of the precast concrete beam (1), the column side fixed pressing plates (6) are respectively arranged on the front side wall and the rear side wall of the right end of the column side fixed pressing plate (6), and the horizontal edges and the vertical edges of the two energy consumption steel plates (4) are respectively and correspondingly pressed and fixed on the precast concrete beam (1) and the precast concrete column (2) through expansion bolts (9) by the beam side fixed pressing plates (5) and the column side fixed pressing plates (6); the masonry filler wall (3) is filled between the two energy consumption steel plates (4), and the two energy consumption steel plates (4) are symmetrically arranged on two sides of the masonry filler wall (3); two the equidistance is provided with a plurality of horizontal buckling restrained steel bars (10) along the upper equal interval of layer height direction for the lateral wall of power consumption steel sheet (4), two the equidistance is provided with a plurality of vertical buckling restrained steel bars (11) along the roof beam on striding the direction for the lateral wall of power consumption steel sheet (4), horizontal buckling restrained steel bar (10) with the crossing department of vertical buckling restrained steel bar (11) is provided with and is used for the restraint power consumption steel sheet (4) out-of-plane bucking is to stay bolt (12).

2. A self-resetting concrete frame structure steel plate energy-dissipating infill wall as recited in claim 1, wherein: two lie in on energy consumption steel sheet (4) horizontal buckling restrained steel bar (10) with first circular hole (13) have been seted up to the positive rear of crossing department of vertical buckling restrained steel bar (11), lie in on brickwork infilled wall (3) the circular hole of second (14) have been seted up at first circular hole (13) rear, first circular hole (13) reach the circular hole of second (14) inside is installed jointly tie bolt (12).

3. A self-resetting concrete frame structure steel plate energy-dissipating infill wall as recited in claim 1, wherein: the energy consumption steel plate (4) is made of low-yield-strength steel, the yield strength is 235MPa, and the thickness is less than or equal to 0.3 mm.

4. The self-resetting concrete frame structure steel plate energy-dissipation infilled wall and the assembling method thereof according to claim 1 are characterized in that: the bottom end of the precast concrete column (2) can be connected with the foundation through a grouting sleeve, or connected through a vertical prestressed tendon.

5. A self-resetting concrete frame structure steel plate energy-dissipating infill wall as recited in claim 1, wherein: the horizontal buckling restrained steel bars (10) are arranged on the outer side wall of the energy consumption steel plate (4) along the horizontal mortar joint direction at intervals of 3-5 brick thicknesses in the layer height direction, and the vertical buckling restrained steel bars (11) are arranged on the outer side wall of the energy consumption steel plate (4) along the beam span direction at intervals of 400-600 mm.

6. A self-resetting concrete frame structure steel plate energy-dissipating infill wall according to claim 5, characterized in that: horizontal buckling restrained steel bar (10) and vertical buckling restrained steel bar (11) width be 30 ~ 60mm, and thickness is 2 ~ 4 mm.

7. The self-resetting concrete frame structure steel plate energy-dissipation infilled wall and the assembling method thereof according to claim 1 are characterized in that: the filling wall is provided with a horizontal buckling restrained steel bar (10) and a vertical buckling restrained steel bar (11) around a door opening or a window opening, and the energy consumption steel plate (4) is cut off at the edge of the opening or the window opening to form a cut hole.

8. A self-resetting concrete frame structure steel plate energy-dissipating infill wall as recited in claim 1, wherein: the cross section of the column side fixing pressure plate (6) is L-shaped.

9. A self-resetting concrete frame structure steel plate energy-dissipating infill wall as recited in claim 1, wherein: and the gap between the precast concrete beam (1) and the precast concrete column (2) is bonded by adopting an inorganic cementing material or an organic cementing material.

10. The method for assembling a self-resetting concrete frame structure steel plate energy-dissipating infill wall as claimed in any one of claims 1 to 9, comprising the steps of:

the method comprises the following steps: firstly, paying off and positioning, and mounting the precast concrete column (2) on a foundation through grouting sleeve connection or vertical prestressed tendons;

step two: then, a column side fixing pressing plate (6) is installed on the right side wall of the precast concrete column (2), then the masonry infill wall (3) is hoisted to the right side of the precast concrete column (2), then the two energy consumption steel plates (4) on the side wall are placed on the front side wall and the rear side wall of the masonry infill wall (3), and the left vertical edges of the two energy consumption steel plates (4) are fixed by utilizing a beam side fixing pressing plate (5) and expansion bolts (9);

step three: the method comprises the following steps of installing a beam side fixing pressing plate (5) at the bottom end of a precast concrete beam (1), then hoisting the beam side fixing pressing plate and the precast concrete beam together to the top end of a masonry infilled wall (3) to enable a precast concrete beam (1) and a prestressed rib hole channel (7) reserved in a precast concrete column (2) to correspond to each other front and back, and then fixing the upper horizontal edges of two energy-consuming steel plates (4) by using the beam side fixing pressing plate (5) and expansion bolts (9);

step four: inserting an unbonded prestressed tendon (8) into a prestressed tendon pore passage (7) from left to right, and anchoring the left end of the unbonded prestressed tendon (8) on the left side wall of the precast concrete column (2);

step five: a plurality of horizontal buckling restrained steel bars (10) are arranged on the outer side walls of the two energy consumption steel plates (4) at equal intervals along the layer height direction, a plurality of vertical buckling restrained steel bars (11) are arranged on the outer side walls of the two energy consumption steel plates (4) at equal intervals along the beam span direction, and then split bolts (12) are arranged at the intersection of the horizontal buckling restrained steel bars (10) and the buckling restrained steel bars;

step six: and finally, filling the prestressed tendon duct (7) and the joint with a cementing material.

Technical Field

The invention relates to the technical field of filler wall assembly, in particular to a self-resetting concrete frame structure steel plate energy-consumption filler wall and an assembly method thereof.

Background

Under the background of the rapid industrialization and informatization process of the whole society, along with the continuous development of economy, building products will be changed to high quality, less pollution and sustainability in the future. The traditional construction mode cannot meet the construction requirements of social development on building products, and the realization of building industrialization is a necessary way for future building development. The cast-in-place concrete structure system can not realize building industrialization, but the prefabricated form splits the house into various components (columns, walls, beams, plates and stairs) to be prefabricated and produced in a factory, and then the integral prefabricated structure is formed by pulling and connecting necessary nodes on site and locally cast-in-place splicing, so that the transformation of the building from 'construction' to 'manufacture' can be realized, and the method is an effective way for realizing building industrialization.

The precast concrete structure is a structural form which accords with industrial production, has excellent economic, environmental and social benefits and good structural performance, and is mainly a precast assembled integral structure which simulates the stress performance of a cast-in-place structure. The structure needs on-site wet operation, the construction procedure is complex, the earthquake input energy is absorbed by all structural components, the structural damage and residual deformation after the earthquake are large, the repair cost is high, even the repair cannot be carried out, and finally the whole structure can only be overturned for reconstruction, thereby causing huge waste.

Although the prestressed self-resetting structure has good self-resetting capability, the energy consumption capability of the structure is poor, and in order to control the maximum deformation of the structure, an additional energy consumption component is required to enhance the energy consumption capability of the structure. For example, energy-consuming steel bars are embedded in grooves at beam ends, but the construction and repair after earthquake are inconvenient, a web friction type prestressed prefabricated frame structure needs to embed large steel plates in nodes and beam ends, the requirement on the flatness of components is high, energy consumption is caused by installing angle steel at the beam ends, and the requirement on positioning of bolt holes is high.

Based on the defects of the precast concrete structure in the prior art, no effective solution is available at present.

Disclosure of Invention

The invention provides a self-resetting concrete frame structure steel plate energy-consumption infilled wall and an assembling method thereof, aiming at the problems of poor self-repairing capability and poor energy-consumption capability of an integral structure in the background technology.

The invention is realized by the following technical scheme:

the utility model provides a from concrete frame structure steel sheet power consumption infilled wall that restores to throne, includes precast concrete roof beam, precast concrete post, brickwork infilled wall, power consumption steel sheet, roof beam side fixed pressing plate and post side fixed pressing plate, its characterized in that: the precast concrete beam is vertically arranged on the right side wall of the top end of the precast concrete column, prestressed tendon ducts are reserved in the precast concrete beam and the precast concrete column, and the two prestressed tendon ducts are connected end to end in the horizontal direction from front to back; an unbonded prestressed tendon is arranged inside the two prestressed tendon ducts in a penetrating mode, and the left end of the unbonded prestressed tendon is anchored on the left side wall of the precast concrete column; the front side wall and the rear side wall of the bottom end of the precast concrete beam are respectively provided with the beam side fixed pressing plate, the front side wall and the rear side wall of the right end of the column side fixed pressing plate are respectively provided with the column side fixed pressing plate, and the beam side fixed pressing plate and the column side fixed pressing plate respectively and correspondingly compress and fix the horizontal edges and the vertical edges of the two energy-consuming steel plates on the precast concrete beam and the precast concrete column through expansion bolts; the masonry filler wall is filled between the two energy consumption steel plates, and the two energy consumption steel plates are symmetrically arranged around two sides of the masonry filler wall; the outer side wall of the energy consumption steel plate is provided with a plurality of horizontal buckling restrained steel bars at equal intervals in the direction of the layer height, the outer side wall of the energy consumption steel plate is provided with a plurality of vertical buckling restrained steel bars at equal intervals in the beam span direction, the horizontal buckling restrained steel bars and the intersection of the vertical buckling restrained steel bars are provided with the split bolts for restraining the out-of-plane buckling of the energy consumption steel plate.

As a further improvement of the above scheme, two energy consumption steel plates are provided with a first circular hole right behind the intersection of the horizontal buckling restrained steel bar and the vertical buckling restrained steel bar, a second circular hole is provided behind the first circular hole on the masonry infilled wall, and the first circular hole and the second circular hole are internally and jointly provided with the split bolt.

As a further improvement of the scheme, the energy-consuming steel plate is made of low-yield-strength steel, the yield strength is 235MPa, and the thickness is less than or equal to 0.3 mm.

As a further improvement of the scheme, the bottom end of the precast concrete column can be connected with the foundation through a grouting sleeve, or connected through a vertical prestressed tendon.

As a further improvement of the above scheme, the horizontal buckling restrained steel bars are arranged at intervals of 3-5 brick thicknesses along the horizontal mortar joint direction on the outer side wall of the energy consumption steel plate along the layer height direction, and the vertical buckling restrained steel bars are arranged at intervals of 400-600 mm along the beam span direction on the outer side wall of the energy consumption steel plate.

As a further improvement of the scheme, the width of each of the horizontal buckling restrained steel bar and the vertical buckling restrained steel bar is 30-60 mm, and the thickness of each of the horizontal buckling restrained steel bar and the vertical buckling restrained steel bar is 2-4 mm.

As a further improvement of the scheme, horizontal buckling restrained steel bars and vertical buckling restrained steel bars need to be arranged around the opening or window opening of the filled wall, and the energy-consuming steel plates are cut at the edge of the opening or window opening to form cut holes.

As a further improvement of the above aspect, the cross-sectional shape of the column-side fixed platen is L-shaped.

As a further improvement of the above scheme, the gap between the precast concrete beam and the precast concrete column is bonded by using an inorganic cementitious material or an organic cementitious material.

The assembling method of the self-resetting concrete frame structure steel plate energy-dissipation infilled wall comprises the following steps of:

the method comprises the following steps: firstly, paying off and positioning, and mounting the precast concrete column on a foundation through grouting sleeve connection or vertical prestressed tendons;

step two: then, a column side fixed pressing plate is installed on the right side wall of the precast concrete column, then the masonry infill wall is hoisted to the right side of the precast concrete column, then the two energy consumption steel plates on the side wall are placed on the front side wall and the rear side wall of the masonry infill wall, and the left vertical edges of the two energy consumption steel plates are fixed by the beam side fixed pressing plate and the expansion bolts;

step three: mounting a beam side fixing pressing plate at the bottom end of the precast concrete beam, then hoisting the beam side fixing pressing plate and the precast concrete beam together to the top end of the masonry infilled wall, enabling the precast concrete beam and a prestressed rib hole channel reserved in the precast concrete column to correspond to each other in front and back, and then fixing the upper horizontal edges of the two energy-consuming steel plates by using the beam side fixing pressing plate and the expansion bolts;

step four: inserting an unbonded prestressed tendon into the prestressed tendon duct from left to right, and anchoring the left end of the unbonded prestressed tendon on the left side wall of the precast concrete column;

step five: installing a plurality of horizontal buckling restrained steel bars on the outer side walls of the two energy consumption steel plates at equal intervals along the layer height direction, installing a plurality of vertical buckling restrained steel bars on the outer side walls of the two energy consumption steel plates at equal intervals along the beam span direction, and then installing split bolts at the intersection of the horizontal buckling restrained steel bars and the buckling restrained steel bars;

step six: and finally, filling the prestressed tendon duct and the joint with a cementing material.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention can concentrate the nonlinear deformation of the infilled wall structure at the connection part, keep elasticity among a plurality of main body parts of the infilled wall, utilize the rebound effect of the unbonded prestressed tendons, the residual deformation of the structure is very small, can realize the rapid recovery of the structure function after the earthquake; meanwhile, in order to control the maximum deformation of the filler wall structure, energy-consuming steel plates are arranged on two sides of the masonry filler wall, so that the energy-consuming capability of the filler wall structure is enhanced, the anti-seismic performance is obviously improved, and the maximum deformation of the structure under the action of an earthquake is controlled.

(2) The self-resetting concrete frame structure steel plate energy-consumption infilled wall adopts a prefabricated assembly form, the used prefabricated concrete beams, the prefabricated concrete columns and the masonry infilled wall all adopt prefabricated components, are produced and transported together, are guaranteed in quality, reduce sub-packaging units in management and are easier to manage, so that the construction efficiency is greatly improved, and the assembly method becomes the most convenient and rapid infilled wall form due to the fact that a large number of hoisting machinery are arranged on site for construction.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a first perspective of the present invention;

FIG. 2 is a perspective view of a second embodiment of the present invention;

FIG. 3 is a right-view internal schematic diagram of the present invention;

FIG. 4 is an enlarged view of a portion of the present invention at A;

FIG. 5 is a schematic view of the installation of the split bolt of the present invention;

FIG. 6 is a schematic perspective view of the masonry infill wall of the present invention;

FIG. 7 is a schematic perspective view of two energy-dissipating steel plates according to the present invention;

fig. 8 is a schematic structural view after the window opening is installed in the present invention.

The construction method comprises the following steps of 1-precast concrete beam, 2-precast concrete column, 3-masonry infill wall, 4-energy-consuming steel plate, 5-beam side fixed pressing plate, 6-column side fixed pressing plate, 7-prestressed rib hole channel, 8-unbonded prestressed rib, 9-expansion bolt, 10-horizontal buckling-restrained steel bar, 11-vertical buckling-restrained steel bar, 12-split bolt, 13-first circular hole and 14-second circular hole.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. The invention is further described below with reference to the accompanying drawings.