阅读说明：本技术 基于法兰连接可拆可换型钢混凝土柱-柱连接结构及方法 (Detachable and replaceable steel reinforced concrete column-column connection structure and method based on flange connection ) 是由 门进杰 霍文武 兰涛 周琦 史庆轩 张谦 于 2019-10-08 设计创作，主要内容包括：本发明公开了一种基于法兰连接可拆可换型钢混凝土柱-柱连接结构及方法,包括上、下段型钢混凝土柱和在两段型钢混凝土柱之间的可拆可换型钢混凝土柱,可拆可换型钢混凝土柱为两端设有法兰盘的型钢混凝土柱,带外伸板的法兰盘设在上、下段型钢混凝土柱两端；通过高强螺栓连接法兰盘和带外伸板的法兰盘将可拆可换型钢混凝土柱连接到上、下段型钢混凝土柱之间。当型钢混凝土柱需要拆换时,在法兰盘外伸板之间支撑千斤顶实现对型钢混凝土柱拆卸和更换。该结构构造形式简洁,加工制作方便,传力路径明确,可快速实现构件的工业化批量制作,提高工程的施工效率,实现了型钢混凝土柱在全生命周期可拆可换,为全生命周期可拆可换结构体系奠定了基础。(The invention discloses a flange connection-based detachable and replaceable section steel concrete column-column connection structure and a flange connection-based detachable and replaceable section steel concrete column-column connection method, wherein the flange connection-based detachable and replaceable section steel concrete column comprises an upper section steel concrete column, a lower section steel concrete column and a detachable and replaceable section steel concrete column between the two sections of section steel concrete columns, the detachable and replaceable section steel concrete column is a section steel concrete column with flanges at two ends, and the flanges with external extension plates are arranged at two ends of the upper section steel concrete column and the lower section steel; the detachable and replaceable section steel concrete column is connected between the upper section steel concrete column and the lower section steel concrete column through a high-strength bolt connecting flange plate and a flange plate with an external extension plate. When the section steel concrete column needs to be disassembled and replaced, the jack is supported between the flange plate extending plates to realize the disassembly and replacement of the section steel concrete column. The structural construction form is simple, the processing and manufacturing are convenient, the force transmission path is clear, the industrialized batch manufacturing of the components can be realized quickly, the construction efficiency of the engineering is improved, the steel reinforced concrete column can be disassembled and replaced in the whole life cycle, and the foundation is laid for the detachable and replaceable structural system in the whole life cycle.)

1. A flange connection-based detachable and replaceable section steel concrete column-column connection structure is characterized by comprising an upper section steel concrete column (1), a lower section steel concrete column (7) and a detachable and replaceable section steel concrete column between the two sections of section steel concrete columns, wherein the detachable and replaceable section steel concrete column is a section steel concrete column (4) with flanges (3) at two ends, and flanges (2) with overhanging plates are arranged at two ends of the upper and lower sections steel concrete columns; connecting the flange plate (3) with the flange plate (2) with the outward extending plate through a high-strength bolt (6), and connecting the detachable and replaceable section steel concrete column between the upper section steel concrete column and the lower section steel concrete column; and a jack (8) is supported between the flange plates extending outward to realize the disassembly and replacement of the section steel concrete column.

2. The flange-connection-based detachable and replaceable section steel concrete column-column connection structure as claimed in claim 1, wherein a section steel column is arranged in the section steel concrete column (4), and two ends of the section steel column are respectively welded with the flange plates (3).

3. The flange-based removable and replaceable section steel concrete column-column connection structure of claim 1, wherein the section steel column (1) is provided with a section steel column, and two ends of the section steel column are respectively welded with the flange (2) with the external extension plate.

4. The flange-connection-based detachable and replaceable section steel concrete column-column connection structure according to claim 2 or 3, wherein the section steel column is an H-shaped section steel column (9), a well-shaped section steel column (5), a cross-shaped section steel column, an inner rectangular section steel column (10), an outer rectangular section steel column (11), an inner circular steel pipe column (13) or an outer circular steel pipe column (14).

5. The flange-connection-based detachable and replaceable section steel concrete column-column connection structure is characterized in that concrete is poured into the outer rectangular section steel column (11) and the outer circular steel pipe column (14) to form a steel pipe concrete column, concrete is poured into the inner circular steel pipe column (13) and the outer circular steel pipe column to form a section steel concrete column, and concrete is poured outside the H-shaped section steel column (9), the # -shaped section steel column (5) and the cross-shaped section steel column to form the section steel concrete column.

6. The flange-connection-based removable and replaceable section steel concrete column-column connection structure of claim 1, wherein the steel distribution ratio of the upper section steel concrete column (1), the lower section steel concrete column (7) and the removable and replaceable section steel concrete column satisfies the following requirements:

wherein L is₀Is a structural layer height, L₁For a detachable and replaceable steel-concrete column length, A₀Is the cross-sectional area of the section steel, A_S0The section areas of the upper and lower sections of concrete column profile steel are shown; a. the₁Is the area of the middle section, A_S1The section area of the section steel of the removable and replaceable section steel concrete column.

7. The flange-connection-based detachable and replaceable steel reinforced concrete column-column connection structure as claimed in claim 1, wherein the steel reinforced concrete column (4) is made of C40 concrete; the section steel column (5) is made of Q420 steel; the flange plate (3) and the flange plate (2) with the overhanging plate are made of Q420 steel.

8. A flange-based removable and replaceable section steel concrete column-column connection structure as claimed in claim 1, wherein the distance from the flange at the upper end of the section steel concrete column (4) to the beam bottom of the upper section steel concrete column (1) is not more than 800mm, and the distance from the flange at the lower end (3) to the floor of the lower section steel concrete column (7) is not more than 800 mm.

9. A flange-based removable and replaceable steel reinforced concrete column-column connection method of a structure according to any one of claims 1 to 8, comprising the steps of:

1) all the components are processed in a factory, the flange plates (3) are butt-welded on the section steel columns (5), C40 concrete is poured in a vertical mold, and the detachable and replaceable section steel concrete columns (4) with the flange plates at two ends are formed;

2) butt welding the flange plate (2) with the overhanging plate on the section steel column (5), and pouring C40 concrete by a vertical die to form an upper section steel concrete column (1) and a lower section steel concrete column (7) with the flange plate with the overhanging plate at two ends;

3) connecting a flange plate (2) with an overhanging plate with a flange plate (3) through a high-strength bolt, and connecting a detachable and replaceable section steel concrete column (4) with flange plates at two ends between an upper section steel concrete column (1) and a lower section steel concrete column (7);

4) when the steel concrete column (4) needs to be disassembled and replaced, the jack (8) is supported on the outward extending plate of the flange plate, and the steel concrete column is disassembled and replaced.

Technical Field

The invention relates to the field of node connection in a full-life-cycle detachable and replaceable structure system, in particular to a detachable and replaceable steel reinforced concrete column-column connection structure and a method based on flange connection.

Background

The full life cycle detachable and replaceable structure system is a novel structure system, and comprises the structure, wherein the structure is detached and replaced on a component due to the change of using functions during normal service, the detachment and recovery of the component are completed after the service, and the component is detached and replaceable after the earthquake action. A brand new structure system becomes a dynamic structure system which can be damaged and quickly recovered and has continuously updated functions, and the new system is in accordance with the aseismic design concept of green buildings and sustainable development. The structure can realize the recycling or the reutilization of the components after the service life is expired; after the structure is damaged under the action of an earthquake, the damaged detachable and replaceable component can be detached and replaced, so that the quick recovery of the structure function after the earthquake is realized; when the service function of the existing building structure is changed, the detachable and replaceable component is detached and updated, and the service function of the structure is rapidly updated.

The full life cycle detachable and replaceable structural system comprises the detachable early-stage structural components and the remounting of new structural components after the structural components in the structural system are detached. At present, scholars at home and abroad mainly study the detachable structure from the angle that the structural member can be detached after the prefabrication assembly and the service period of the structural member are over, so that the structure does not generate or only generates a small amount of construction waste after being detached, and the detached structural member can be reused. But the detachable construction has certain limitations: the structure can only be dismantled from top to bottom in the whole structure after the service is finished, and the structure members cannot be dismantled or replaced locally during the service; the structure cannot be quickly restored after the action of an earthquake.

The full-life-cycle detachable and replaceable structure system provided for solving the problems not only realizes that local components which do not meet the functional requirements are detached and replaced due to the change of the using functions of the building structure during the normal use period of the structure, but also quickly updates the using functions of the building structure; after the structure is in service, the structural member can be disassembled, recovered and reused; still realized the structure after the earthquake effect, dismantled the change to the removable interchangeable component of impaired position, made the quick recovery of structure service function.

The invention provides a flange connection-based detachable and replaceable steel reinforced concrete column-column connection structure, which is not well applicable to the proposed full-life-cycle detachable and replaceable structure system. The invention is an important component of a full-life-cycle detachable and replaceable structural system, and is an important support for realizing the concept of the detachable and replaceable structural system. The invention is not only suitable for the detachable and replaceable structure system in the whole life cycle, but also well suitable for the existing assembly type structure system.

Disclosure of Invention

The invention provides a flange connection-based detachable and replaceable steel reinforced concrete column-column connection structure and a flange connection-based detachable and replaceable steel reinforced concrete column-column connection method, aiming at the problem that the existing structure column-column connection structure cannot be well suitable for a full-life-cycle detachable and replaceable structure system. The steel concrete column has the advantages of simple structure and construction form, convenience in processing and manufacturing and clear force transmission path, realizes the detachability and replaceability of the steel concrete column in the whole life cycle, and lays a foundation for a detachability and replaceability structure system in the whole life cycle.

In order to solve the problems, the technical scheme adopted by the invention is as follows:

a flange connection-based detachable and replaceable section steel concrete column-column connection structure comprises an upper section steel concrete column, a lower section steel concrete column and a detachable and replaceable section steel concrete column between the two sections of section steel concrete columns, wherein the detachable and replaceable section steel concrete column is a section steel concrete column with flanges at two ends, and the flanges with overhanging plates are arranged at two ends of the upper and lower sections steel concrete columns; connecting the flange plate with a flange plate with an external extension plate through a high-strength bolt, and connecting the detachable and replaceable section steel concrete column between the upper section steel concrete column and the lower section steel concrete column; when the section steel concrete column needs to be disassembled and replaced, the jack is supported between the flange plate extending plates to realize the disassembly and replacement of the section steel concrete column.

The present invention also has a further preferable embodiment with respect to the above-described technical solution.

Preferably, the section steel concrete column is internally provided with a section steel column, and two ends of the section steel column are respectively welded with the flange plates.

Preferably, a section steel column is arranged in the upper section steel reinforced concrete column, and two ends of the section steel column are respectively welded with the flange plates with the external extension plates.

Preferably, the section steel column is an H-shaped section steel column, a # -shaped section steel column, a cross-shaped section steel column, an inner rectangular section steel column, an outer rectangular section steel column, an inner circular steel pipe column or an outer circular steel pipe column.

Preferably, concrete is poured into the outer rectangular section steel column and the outer circular steel pipe column to form a steel pipe concrete column, concrete is poured into the inner circular steel pipe column and the outer circular steel pipe column to form a section steel concrete column, and concrete is poured out of the H-shaped section steel column, the # -shaped section steel column and the cross-shaped section steel column to form the section steel concrete column.

Preferably, the steel distribution rate of the upper section steel reinforced concrete column, the lower section steel reinforced concrete column and the detachable and replaceable steel reinforced concrete column meets the following requirements:

wherein L is₀Is a structural layer height, L₁For a detachable and replaceable steel-concrete column length, A₀Is the cross-sectional area of the section steel, A_S0The section areas of the upper and lower sections of concrete column profile steel are shown; a. the₁Is the area of the middle section, A_S1The section area of the section steel of the removable and replaceable section steel concrete column.

Preferably, the steel reinforced concrete column is made of C40 concrete; the section steel column is made of Q420 steel; the flange plate and the flange plate with the external extension plate are made of Q420 steel.

Preferably, the distance from the flange at the upper end of the steel reinforced concrete column to the bottom of the upper section steel reinforced concrete column beam is not more than 800mm, and the distance from the flange at the lower end to the floor of the lower section steel reinforced concrete column is not more than 800 mm.

The invention correspondingly provides a flange connection-based detachable and replaceable steel reinforced concrete column-column connection method, which comprises the following steps:

1) all the components are processed in a factory, the flange plates are welded on the section steel column, C40 concrete is poured in a vertical mold, and a detachable and replaceable section steel concrete column with the flange plates at two ends is formed;

2) oppositely welding the flange plates with the overhanging plates on the section steel column, and pouring C40 concrete in a vertical mold to form an upper section steel concrete column and a lower section steel concrete column with the flange plates with the overhanging plates at two ends;

3) connecting the flange plate with the overhanging plate with a flange plate through a high-strength bolt, and connecting the detachable and replaceable section steel concrete column with the flange plates at two ends between the upper section steel concrete column and the lower section steel concrete column;

4) when the steel concrete column needs to be disassembled and replaced, the jack is supported on the outward extending plate of the flange plate, and the steel concrete column is disassembled and replaced.

When the use function of the existing building structure is changed, the steel reinforced concrete column which does not meet the requirement of a new structure function is disassembled and replaced into the steel reinforced concrete column which meets the requirement of the function, so that the use function of the structure is quickly updated; after the earthquake, the damaged steel concrete column can be disassembled and replaced, and the quick recovery of the use function of the structure is realized.

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

the profiled steel concrete column uses high-strength bolt to connect through the ring flange, uses the jack to dismantle the profiled steel concrete column between the flange overhanging plate about the profiled steel concrete column to install new profiled steel concrete column, make the profiled steel concrete column become removable interchangeable component through flange joint promptly, and can tear open the profiled steel concrete column in full life cycle and trade. By reasonably arranging the steel distribution rate of the upper, middle and lower section steel concrete columns, the plastic hinge of the structure appears in the middle of the column body of the section steel concrete column under the expected load action, and the flange plate joint does not deform or only slightly deforms under the expected load action.

After the earthquake, a jack is used between the upper flange plate and the lower flange plate to disassemble the damaged section steel concrete column and install a new section steel concrete column, so that the structural function can be quickly recovered after the earthquake; when existing building structure service function changes, use the jack to tear the shaped steel concrete column that does not satisfy new service function demand open and change for the shaped steel concrete column that satisfies structural function demand, realize the quick renewal of structure service function.

The flange connection-based detachable and replaceable steel reinforced concrete column-column connection realizes the detachable and replaceable steel reinforced concrete column in the whole life cycle, has simple connection structure form and convenient processing and manufacturing, can quickly realize the industrialized manufacturing of structural components, and quickly improves the engineering construction efficiency. The invention is not only suitable for a full life cycle detachable and replaceable structure system, but also well suitable for the existing assembly type structure system, and has great engineering application range and application prospect.

Drawings

FIG. 1 is a schematic overall view of a flange connection-based removable and replaceable steel reinforced concrete column-column connection structure;

FIG. 2 is a schematic view of a removable and replaceable steel reinforced concrete column member;

FIG. 3 is a schematic view of the internal construction of a removable and replaceable steel reinforced concrete column member;

FIG. 4 is a top view of a removable and replaceable steel reinforced concrete column-column connection;

FIG. 5 is a schematic view of a connection structure of a # -shaped steel concrete column;

FIG. 6 is a schematic view of a section steel concrete column connection structure with an H-shaped section steel column;

FIG. 7 is a schematic view of a section steel concrete column connection structure with a section steel column having an inner rectangular section;

FIG. 8 is a schematic view of a section steel concrete column connection structure with a section steel column having an outer rectangular section;

FIG. 9 is a schematic view of a section steel concrete column connection structure with a section steel column having an inner circular shape;

FIG. 10 is a schematic view of a section steel concrete column connection structure with an outer circular section of section steel columns;

FIG. 11 is a schematic illustration of the removable and replaceable steel reinforced concrete column being removed and replaced with the aid of a jack device.

Wherein, shown in the figure: the steel column comprises an upper section steel concrete column 1, a flange plate with an overhanging plate 2, a flange plate 3, a section steel concrete column 4, a well-shaped section steel column 5, a high-strength bolt 6, a lower section steel concrete column 7, a jack 8, an H-shaped section steel column 9, an inner rectangular section steel column 10, an outer rectangular section steel column 11, a concrete column 12, an inner circular steel column 13 and an outer circular steel column 14.

Detailed Description

The present invention will be further described with reference to the following drawings and specific examples, but the embodiments of the present invention are not limited thereto.

The flange connection-based detachable and replaceable section steel concrete column-column connection structure comprises an upper section steel concrete column 1, a lower section steel concrete column 7 and a detachable and replaceable section steel concrete column between the two sections of section steel concrete columns, wherein the detachable and replaceable section steel concrete column comprises a section steel concrete column 4, flange plates 3 and high-strength bolts 6, the flange plates 3 are arranged at two ends of the section steel concrete column 4, and the flange plates 2 with external extension plates are arranged at two ends of the upper section steel concrete column 1 and the lower section steel concrete column 7; stretch the ring flange 2 of board through ring flange 3 and outband and use high strength bolt 6 to be connected to removable steel reinforced concrete post of changing between upper segment steel reinforced concrete post 1 and hypomere steel reinforced concrete post 7, when steel reinforced concrete post need tear open and change, through supporting jack 8 between the ring flange 2 of board is stretched to the outband, realize dismantling and changing of steel reinforced concrete post.

The invention can disassemble and replace the damaged steel concrete column after the earthquake action, thereby realizing the quick recovery of the use function of the structure; when original structure service function changes, tear open the shaped steel concrete column that does not satisfy new function demand and trade for satisfying the shaped steel concrete column of structural function demand, realize the quick renewal of structure service function.

Specifically, as shown in fig. 3, in one embodiment, a flange 3 is welded to the end of a steel reinforced concrete column 4, a flange 2 with an extension plate is welded to the end of an upper section steel reinforced concrete column 1 and a lower section steel reinforced concrete column 7, and the steel reinforced concrete column 4 is connected between the upper section steel reinforced concrete column 1 and the upper section steel reinforced concrete column 7 through the flange 3 and the flange 2 with the extension plate by using high-strength bolts. The profile steel of the medium-sized steel concrete column 4 in this embodiment is a cross-shaped profile steel column.

In another embodiment, as shown in fig. 4 and 5, the section steel in the upper, middle and lower section steel reinforced concrete columns is a # -shaped section steel column 5.

In another embodiment, shown in fig. 6, the steel sections in the upper, middle and lower sections of the steel reinforced concrete column are H-shaped steel columns 9.

In another embodiment, shown in fig. 7, the steel sections in the upper, middle and lower section steel reinforced concrete columns are inner rectangular steel columns 10.

In another embodiment, as shown in fig. 8, the section steels in the upper, middle and lower section steel concrete columns are outer rectangular steel columns 11, and concrete is poured into the outer rectangular steel columns 11 to form rectangular steel tube concrete columns.

In another embodiment, as shown in fig. 9, the section steel in the upper, middle and lower section steel concrete columns is an inner circular steel pipe column 13, and the inner circular steel pipe column 13 is formed by pouring concrete inside and outside the steel pipe column.

In another embodiment, as shown in fig. 10, the steel sections in the upper, middle and lower section steel reinforced concrete columns are outer round steel pipe columns 14, and concrete is poured into the outer round steel pipe columns 14 to form a circular steel pipe concrete column.

The H-shaped section steel column 9, the cross-shaped section steel column, the # -shaped section steel column 5, the inner rectangular section steel column 10, the outer rectangular section steel column 11, the inner circular steel pipe column 13 or the outer circular steel pipe column 14 are pre-embedded in the detachable and replaceable section steel concrete to form different H-shaped section steel columns, cross-shaped section steel columns, # -shaped section steel columns, inner rectangular section steel columns, outer rectangular section steel columns, inner circular steel pipe columns or outer circular steel pipe columns, and the requirement of matching and connecting frame columns of different structural forms can be met.

And the steel distribution rate relation among the upper section steel reinforced concrete column 1, the lower section steel reinforced concrete column 7 and the detachable and replaceable steel reinforced concrete column meets the following relation:

wherein L is₀Is a structural layer height, L₁For a detachable and replaceable steel-concrete column length, A₀Is the cross-sectional area of the section steel, A_S0The section areas of the upper and lower sections of concrete column profile steel are shown; a. the₁Is the area of the middle section, A_S1The section area of the section steel of the removable and replaceable section steel concrete column.

By controlling the rigidity ratio (steel distribution ratio) of the upper, middle and lower section steel concrete columns, plastic hinges appear in the middle of the section steel concrete column body under the action of an earthquake, the section steel concrete column 4 intensively damages and consumes energy, and other parts of the structure are protected from being damaged. After the earthquake, the damaged steel concrete column 4 is replaced by a new steel concrete column, so that the structural function is quickly recovered.

Fig. 11 is a schematic diagram of the detachable and replaceable steel reinforced concrete column being detached and replaced with the aid of a jack device, and when the detachable and replaceable steel reinforced concrete column needs to be replaced, the jack 8 is placed between the flange plates 2 with the outer extension plates to be supported, and then detached and replaced.

The following is a further explanation of the concrete column of the present invention.

In one embodiment, the section size of the steel reinforced concrete column 4 is 400 multiplied by 400, the height is 2000mm, and C40 concrete is adopted as the material; the square outer contour dimension of the section of the well-shaped section steel column 5 is 200 multiplied by 200, the thickness of a steel plate is 20mm, the distance between two sides and the edge is 50mm, the distance between the middle part and the edge is 60mm, the height is 2000mm, and Q420 steel is adopted as a material; the flange 3 is provided with 12 bolt connecting holes, the section size is 600 multiplied by 600, the thickness is 20mm, and the material is Q420 steel; the section size of the flange plate 2 with the overhanging plate is 600 multiplied by 1000, the thickness is 20mm, the section size of the overhanging plate is 600 multiplied by 200, the thickness is 20mm, and the material is Q420 steel; the high-strength bolt is an M27 high-strength bolt. The distance from the flange 3 at the upper end of the steel reinforced concrete column 4 to the beam bottom of the upper section steel reinforced concrete column 1 is not more than 800mm, and the distance from the flange at the lower end to the floor of the lower section steel reinforced concrete column 7 is not more than 800 mm.

In the above example, all the members are processed at the factory, the flange 3 has 12 bolt coupling holes, and the flange 2 with the overhang plate is a rectangular steel plate, which is cut out in the overall size. And the flange plates 3 are butt-welded on the section steel columns 5, and then C40 concrete is poured in a vertical mold to form the detachable and replaceable section steel concrete columns with the flange plates at two ends. The flange plate of the upper section steel concrete column and the lower section steel concrete column which are connected with the detachable and replaceable steel concrete column is provided with an overhanging plate, and is used for dismounting and replacing steel concrete column members by using a jack in the later period.

The detachable and replaceable middle section steel concrete column 4 is connected with the upper section steel concrete column 1 and the lower section steel concrete column 7 through flanges respectively by high-strength bolts. When existing building structure service function changes, original shaped steel concrete column 4 can not satisfy the new function demand of structure, can use jack 7 to dismantle shaped steel concrete column 4 and change the shaped steel concrete column for satisfying the structure function demand, realizes overall structure service function's quick renewal. After the steel reinforced concrete column 4 is expected to bear the effect, can dismantle impaired steel reinforced concrete column and change for new steel reinforced concrete column, realize overall structure service function's quick recovery.

After the earthquake, a jack is used between the upper flange plate and the lower flange plate to disassemble the damaged section steel concrete column and install a new section steel concrete column, so that the structural function can be quickly recovered after the earthquake; when existing building structure service function changes, use the jack to tear the shaped steel concrete column that does not satisfy new service function demand open and change for the shaped steel concrete column that satisfies structural function demand, realize the quick renewal of structure service function.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications within the technical scope of the present invention or according to the present invention, which are obvious to those skilled in the art, are encompassed by the present invention.