CN211007066U - A detachable and replaceable steel-concrete column-column connection structure based on flange connection - Google Patents

Abstract

The utility model discloses a detachable and replaceable steel-concrete column-column connection structure based on flange connection, which comprises upper and lower section steel-concrete columns and a detachable and replaceable steel-concrete column between the two sections. The replaceable steel-concrete column is a steel-concrete column with flanges at both ends, and the flanges with overhanging plates are arranged at both ends of the upper and lower sectioned-steel-concrete columns; the flanges and the overhanging plates are connected by high-strength bolts. The flange plate connects the detachable and replaceable steel-concrete columns between the upper and lower section steel-concrete columns. When the section steel concrete column needs to be dismantled and replaced, a jack is supported between the flange outriggers to realize the disassembly and replacement of the section steel concrete column. The structure is simple in structure, convenient in processing and manufacturing, and has a clear force transmission path. It can quickly realize the industrialized batch production of components, improve the construction efficiency of the project, and realize the disassembly and replacement of the profiled steel concrete column in the whole life cycle. The interchangeable structural system lays the foundation.

Description

A detachable and replaceable steel-concrete column-column connection structure based on flange connection

technical field

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

Background technique

The whole life cycle detachable and replaceable structural system is a new type of structural system, which includes the disassembly and replacement of the components due to the change of the use function during the normal service of the structure, the disassembly and recovery of the components after the service is completed, and after the earthquake Detachable and replaceable components. The new structural system has become a dynamic structural system that can be quickly recovered from damage and can be continuously updated in function. The new system is in line with the earthquake-resistant design concept of green building and sustainable development. The structure can realize the recovery or reuse of components after the service period expires; after the structure is damaged by the earthquake, the damaged detachable and replaceable components can be disassembled and replaced to realize the rapid recovery of the structural function after the earthquake; the existing building structure can be used for When the function changes, the detachable and replaceable components are disassembled and updated to realize the rapid update of the structural use function.

The whole life cycle removable and replaceable structural system includes the disassembly of the structural components in the early stage and the new components can be reinstalled after the components in the structural system are removed. Scholars at home and abroad are mainly studying the dismantling structure from the perspective of the prefabrication of structural components and the dismantling of the components after the service period expires, so as to realize that the structure does not generate or only generates a small amount of construction waste after dismantling, and it can be components for reuse. However, the detachable structure has certain limitations: the structure can only be demolished in a top-down sequence after the service is completed, and the structural components cannot be partially demolished or replaced during service; the structure cannot be removed after the earthquake. for fast recovery.

In order to solve the above problems, the whole life cycle detachable and replaceable structure system is proposed, which not only realizes the disassembly and replacement of local components that do not meet the functional requirements due to the change of the use function of the building structure during the normal use of the structure, and quickly updates the use function of the building structure. ; After the structure is in service, the structural components can be disassembled, recycled and reused; it is also realized that the damaged part of the structure can be disassembled and replaced after the earthquake action, so that the function of the structure can be quickly restored.

Since the traditional structural column-column connection structure cannot be well applied to the proposed whole-life-cycle detachable and replaceable structural system, the present invention proposes a detachable and replaceable steel-concrete column-column connection based on flange connection. structure. The utility model is an important part of the detachable and replaceable structure system in the whole life cycle, and is an important support for realizing the concept of the detachable and replaceable structure system. The utility model is not only suitable for the detachable and replaceable structural system in the whole life cycle, but also can be well applied to the existing assembled structural system.

Utility model content

Aiming at the fact that the existing structural column-column connection structure cannot be well applied to the detachable and replaceable structural system in the whole life cycle, the utility model proposes a detachable and replaceable steel-concrete column-column connection structure based on flange connection. The utility model has the advantages of simple structural form, convenient processing and manufacturing, and clear force transmission path, realizing the disassembly and replacement of the profiled steel concrete column in the whole life cycle, and laying a foundation for the disassembled and replaceable structural system in the whole life cycle.

In order to solve the above problems, the technical scheme adopted by the present utility model is:

A detachable and replaceable steel-concrete column-column connection structure based on flange connection, comprising an upper-section steel-concrete column, a lower-section steel-concrete column, and a detachable and replaceable steel-concrete column between the two-section steel-concrete columns, which are detachable and replaceable. The profiled steel concrete column is a profiled steel concrete column with flanges at both ends, and flanges with overhanging plates are provided at both ends of the upper and lower sectioned steel concrete columns; the flanges and the flanges with overhanging plates are connected by high-strength bolts. Connection, connect the removable and replaceable steel-concrete column between the upper-section steel-concrete column and the lower-section steel-concrete column; when the steel-concrete column needs to be replaced, support the jack between the flange plate outriggers to realize the disassembly of the steel-concrete column and replacement.

For the above technical solutions, the present invention has further preferred solutions.

Preferably, a profiled steel column is arranged in the profiled steel concrete column, and both ends of the profiled steel column are welded with flanges respectively.

Preferably, a profiled steel column is arranged in the upper section of the profiled steel concrete column, and both ends of the profiled steel column are respectively welded with flanges with overhanging plates.

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

Preferably, the outer rectangular steel column and the outer circular steel column are poured with concrete to form a concrete-filled steel tube column, the inner and outer steel column is poured with concrete to form a steel concrete column, the H-shaped steel column, the well-shaped steel column, the cross-shaped steel column Concrete is poured outside the section steel column to form a section steel concrete column.

Preferably, the section steel concrete column adopts C40 concrete; the section steel column material adopts Q420 steel; the flange plate and the flange plate with the overhang plate adopts Q420 steel.

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

When the use function of the existing building structure changes, the utility model dismantles and replaces the profiled steel concrete column that does not meet the new function requirements of the structure to the profiled steel concrete column that meets the functional requirements, so as to realize the rapid update of the use function of the structure; Damaged steel-concrete columns are dismantled and replaced to achieve rapid recovery of structural functions.

Compared with the prior art, the utility model has the following beneficial effects:

The sectioned steel concrete column is connected by high-strength bolts through the flange plate, and the sectioned steel concrete column can be disassembled by using a jack between the upper and lower flange plate outriggers of the sectioned steel concrete column, and the new sectioned steel concrete column can be installed, that is, through the flange connection Make the reinforced concrete column a detachable and replaceable component, and the reinforced concrete column can be dismantled and replaced in the whole life cycle. By reasonably arranging the steel ratio of the upper, middle and lower profiled steel concrete columns, the plastic hinge of the structure will appear in the middle of the profiled steel concrete column under the expected load, and the flange connection will not be deformed or only produce a relatively large amount of deformation under the expected load. small deformation.

After the earthquake, use jacks between the upper and lower flange outriggers to disassemble the damaged reinforced concrete columns, and install new reinforced concrete columns to achieve rapid recovery of structural functions after the earthquake; when the existing building structure is used When the function changes, use the jack to dismantle and replace the steel-concrete column that does not meet the new functional requirements for the steel-concrete column that meets the structural function requirements, so as to realize the rapid update of the structural use function.

The detachable and replaceable steel-concrete column-column connection based on flange connection realizes the detachable and replaceable steel-concrete column in the whole life cycle, and the connection structure is simple and convenient to manufacture, which can quickly realize the industrial production of structural components and rapidly improve engineering construction efficiency. The utility model is not only suitable for the dismountable and replaceable structural system in the whole life cycle, but also can be well applied to the existing assembled structural system, and has a great engineering application scope and application prospect.

Description of drawings

Figure 1 is an overall schematic diagram of a detachable and replaceable steel-concrete column-column connection structure based on flange connection;

Figure 2 is a schematic diagram of a detachable and replaceable steel-concrete column member;

Figure 3 is a schematic diagram of the internal structure of a removable and replaceable steel-concrete column member;

Figure 4 is a top view of a detachable and replaceable steel-concrete column-column connection structure;

Figure 5 is a schematic diagram of the connection structure of the well-shaped steel-concrete column;

Figure 6 is a schematic diagram of the connection structure of a steel-concrete column with an H-shaped section of the steel column;

7 is a schematic diagram of the connection structure of the section of the section of the section of the section of the section of the section of the section of the section of the sectioned steel concrete column;

FIG. 8 is a schematic diagram of the connection structure of the section of the section of the section of the section of the section of the section of the section of the section of the section of the section of the sectioned steel concrete column;

Figure 9 is a schematic diagram of the connection structure of the section of the section of the section of the section of the section of the section of the section of the section of the sectioned steel-concrete column;

Figure 10 is a schematic diagram of the connection structure of the steel-concrete column with the section of the steel column being an outer circle;

Figure 11 is a schematic diagram of the disassembly and replacement of the removable and replaceable steel-concrete column with the assistance of the jack device.

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

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings and specific embodiments, but the embodiments of the present utility model are not limited thereto.

A detachable and replaceable steel-concrete column-column connection structure based on flange connection in the present embodiment, as shown in Figure 1-2, includes an upper-section steel-concrete column 1, a lower-section steel-concrete column 7, and a section between the two-section steel-concrete column The detachable and replaceable steel-concrete column between the two, the detachable and replaceable steel-concrete column includes the steel-concrete column 4, the flange 3 and the high-strength bolts 6, the flange 3 is arranged at both ends of the steel-concrete column 4, Flanges 2 are arranged at both ends of the upper section 1 and the lower section 7; through the flange 3 and the flange 2 with the overhanging plate, high-strength bolts 6 are used to connect the detachable and replaceable section to the upper section. Between the profiled steel concrete column 1 and the lower section profiled steel concrete column 7, when the profiled steel concrete column needs to be dismantled and replaced, the jack 8 is supported between the flanges 2 with outrigger plates to realize the removal and replacement of the profiled steel concrete column.

The utility model can dismantle and replace the damaged section steel concrete column after the earthquake, so as to realize the rapid recovery of the function of the structure; when the function of the original structure changes, the section steel concrete column that does not meet the requirements of the new function can be dismantled and replaced to meet the needs of the new function. Structural functional requirements of the steel-concrete column, to achieve rapid update of the structural use function.

As shown in FIG. 3, specifically, in one embodiment, the flange 3 welded at the end of the reinforced concrete column 4, the end of the upper section reinforced concrete column 1 and the lower section 7 are welded with flanges with outrigger plates 2. Use high-strength bolts to connect the reinforced concrete column 4 to the upper section reinforced concrete column 1 and the upper section reinforced concrete column 7 through the flange 3 and the flange 2 with the overhanging plate. The shaped steel of the middle-shaped steel concrete column 4 in this embodiment is a cross-shaped steel column.

As shown in FIG. 4 and FIG. 5 , in another embodiment, the shaped steel in the upper, middle, and lower section steel reinforced concrete columns is a well-shaped steel column 5 .

As shown in FIG. 6 , in another embodiment, the shaped steels in the upper, middle and lower section steel-concrete columns are H-shaped steel columns 9 .

As shown in FIG. 7 , in another embodiment, the shaped steels in the upper, middle and lower section steel-concrete columns are inner rectangular shaped steel columns 10 .

As shown in FIG. 8 , in another embodiment, the shaped steel in the upper, middle and lower section steel reinforced concrete columns is an outer rectangular shaped steel column 11 , and concrete is poured into the outer rectangular shaped steel column 11 to form a rectangular CFST column.

As shown in FIG. 9 , in another embodiment, the profiled steels in the upper, middle and lower section steel-concrete columns are inner cylindrical steel tube columns 13 , which are formed by pouring concrete inside and outside the inner cylindrical steel tube columns 13 to form shaped steel-concrete columns.

As shown in FIG. 10 , in another embodiment, the profiled steel in the upper, middle and lower section steel concrete columns is an outer cylindrical steel tube column 14 , and concrete is poured into the outer cylindrical steel tube column 14 to form a circular steel tube concrete column.

Pre-buried H-shaped steel column 9, cross-shaped steel column, well-shaped steel column 5, inner rectangular steel column 10, outer rectangular steel column 11, inner circular steel column 13 or outer circular steel column 14 in the removable and replaceable steel concrete , to form different I-shaped steel columns, cross-shaped steel columns, well-shaped steel columns, inner rectangular steel columns, outer rectangular steel columns, inner circular steel columns or outer circular steel columns, which can meet the needs of different structural forms of frame columns. type connection.

In addition, the relationship between 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 relationship:

Among them, L ₀ is the height of the structural floor, L ₁ is the length of the detachable and replaceable steel-concrete column, A ₀ is the section area of the section steel, A _S0 is the section area of the upper and lower sections of the concrete column section; A ₁ is the section area of the middle section, and A _S1 is Detachable and replaceable steel-concrete column cross-sectional area.

By controlling the stiffness ratio (steel distribution ratio) of the upper, middle and lower reinforced concrete columns, plastic hinges appear in the middle of the reinforced concrete columns under the action of earthquakes, and the 4 reinforced concrete columns concentrate damage and energy consumption to protect other components of the structure from damage. After the earthquake, the damaged section steel concrete column 4 is replaced with a new section steel concrete column, so as to realize the rapid recovery of the structural function.

Figure 11 is a schematic diagram of the disassembly and replacement of the removable and replaceable steel concrete column with the aid of the jack device. When the removable and replaceable steel concrete column needs to be replaced, the jack 8 is supported between the flanges 2 with the outrigger plate for disassembly. replace.

The following is a further description through the specific example of the detachable and replaceable steel-concrete column of the present invention.

In one embodiment, the cross-sectional size of the shaped steel concrete column 4 is 400×400, the height is 2000 mm, and the material is C40 concrete; the square shape of the cross-section of the well-shaped steel column 5 is 200×200, the thickness of the steel plate is 20 mm, and the distance between the two sides from the edge is 200×200. 50mm, the middle distance is 60mm, the height is 2000mm, the material is Q420 steel; the flange plate 3 has 12 bolt connection holes, the section size is 600×600, the thickness is 20mm, and the material is Q420 steel; the flange with outrigger plate The section size of plate 2 is 600×1000 and the thickness is 20mm. The section size of the overhanging plate is 600×200 and the thickness is 20mm. The material is Q420 steel; the high-strength bolts are M27 high-strength bolts. The distance from the flange plate 3 of the upper end of the reinforced concrete column 4 to the bottom of the beam of the upper sectional reinforced concrete column 1 is not more than 800mm, and the distance from the flange plate of the lower end to the floor of the lower sectional steel concrete column 7 is not more than 800mm.

In the above example, all the components are processed in the factory, the flange 3 has 12 bolt connection holes, and the flange 2 with the overhanging plate is a rectangular steel plate, which is cut and processed according to the overall size. Flange 3 is butt welded on profiled steel column 5, and then C40 concrete is poured in vertical form to form a removable and replaceable profiled steel concrete column with flanges at both ends. The flanges of the upper and lower sections of the steel-concrete column connected to the removable and replaceable steel-concrete column are provided with outriggers, which are used to dismantle and replace the steel-concrete column members later by using a jack.

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 respectively through flanges using high-strength bolts. When the use function of the existing building structure changes and the original reinforced concrete column 4 cannot meet the new functional requirements of the structure, the sectional steel concrete column 4 can be disassembled and replaced by a jack 7 to meet the structural function requirements, so as to realize the function of the overall structure. quick update. After the expected load is applied to the sectioned steel concrete column 4, the damaged sectioned steel concrete column can be disassembled and replaced with a new sectioned steel concrete column, so as to realize the rapid recovery of the use function of the overall structure.

After the earthquake, use jacks between the upper and lower flange outriggers to disassemble the damaged reinforced concrete columns, and install new reinforced concrete columns to achieve rapid recovery of structural functions after the earthquake; when the existing building structure is used When the function changes, use the jack to dismantle and replace the steel-concrete column that does not meet the new functional requirements for the steel-concrete column that meets the structural function requirements, so as to realize the rapid update of the structural use function.

The above-mentioned, the utility model can be better realized, it is only a preferred specific embodiment of the present utility model, and is not used to limit the implementation scope of the present utility model. Changes and modifications made within the disclosed technical scope or according to the present invention are all covered by the protection scope of the claims of the present invention.

Claims (7)

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 of claim 4, wherein concrete is poured into the outer rectangular section steel column (11) and the outer cylindrical steel pipe column (14) to form a steel pipe concrete column; concrete is poured inside and outside the inner round steel pipe column (13) to form the 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 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.

7. 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.

Images