CN111794408A - Flexible connection structure between prefabricated infilled wall and prefabricated frame post - Google Patents
Flexible connection structure between prefabricated infilled wall and prefabricated frame post Download PDFInfo
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- CN111794408A CN111794408A CN202010775441.4A CN202010775441A CN111794408A CN 111794408 A CN111794408 A CN 111794408A CN 202010775441 A CN202010775441 A CN 202010775441A CN 111794408 A CN111794408 A CN 111794408A
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- Prior art keywords
- prefabricated
- wall
- frame column
- filler
- filler wall
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/562—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with fillings between the load-bearing elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
- E04B2/60—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention belongs to the technical field of buildings, and particularly relates to a flexible connecting structure between a prefabricated filler wall and a prefabricated frame column. The technical scheme is as follows: the prefabricated steel component I is of a square tube structure and is fixedly arranged on the side surface of a prefabricated frame column, and a vertical sliding groove is formed in the prefabricated steel component I; two ends of the prefabricated steel component II are respectively provided with a dumbbell-shaped sliding block and a dumbbell-shaped hook; one end of the connecting steel bar is embedded in the prefabricated infilled wall, and the other end of the connecting steel bar is an O-shaped end; the sliding block is placed in the sliding groove, the hook hooks the O-shaped end, and the prefabricated filler wall and the prefabricated frame column are flexibly connected together. The invention can solve the problem that the prefabricated filler wall generates additional stress on the tie bars due to settlement deformation, improves the local seismic performance of the structure, and has the advantages of simple structure, clear force transmission, good integrity, convenient construction, safety and reliability.
Description
Technical Field
The invention belongs to the technical field of buildings, and particularly relates to a flexible connecting structure between a prefabricated filler wall and a prefabricated frame column.
Background
In the building structure, the addition of the filler wall can improve the lateral rigidity of the main body frame structure, so that the earthquake action is increased. In engineering design, there are two ways to treat a filler wall, i.e., to treat it as a structural member and to treat it as a non-structural member. In actual work, for calculation convenience, the filler wall is often simply regarded as a non-structural member, only the dead weight of the filler wall is considered in design calculation, the anti-seismic bearing capacity of the filler wall is not considered, and the influence of the dead weight on the overall rigidity of the structure is approximately considered through the self-vibration period reduction coefficient. The result of this is that the frame beam and column are deviated from safe and reliable in case of small earthquake, but the infilled wall is seriously damaged in case of medium earthquake, which not only increases economic loss and maintenance cost, but also may cause casualties. The connection mode between the infilled wall and the frame is mainly divided into rigid connection and flexible connection. When rigid connection is adopted, concrete methods include that the filler wall is connected with the frame column through mortar, and the filler wall is obliquely built with building blocks and is jacked to be solid with the frame beam. When flexible connection is adopted, the concrete method comprises the steps of separating the frame from the filling wall, connecting the frame with the filling wall by using a tie bar, filling a gap by using a filling material and the like.
At present, in a frame structure of a filler wall, the filler wall and a frame are mainly in rigid connection, the characteristics of large rigidity and low shear strength in a plane of the rigid connection filler wall cause the filler wall to be seriously damaged in the plane in the earthquake action, and the earthquake damage is aggravated; in addition, the infill wall has a lateral support effect on the frame beams, and the bending deformation of the frame beams can generate additional pressure on the infill wall. The main reason for rigid connection shock damage is that the filler wall limits the transverse deformation of the frame main body member, if the masonry filler wall is separated from the frame column, the frame main body structure is allowed to deform freely under the action of earthquake, the filler wall is not extruded, the filler wall can be prevented from participating in the distribution of the earthquake action, the transverse supporting and restraining action on the frame main body is eliminated, and the shock damage is further reduced. Based on the principle, the building earthquake-resistant design specification specifies that the masonry infilled wall in the reinforced concrete structure is suitable to be disconnected from the column or flexibly connected with the column.
The existing frame column and the steel bar flexible connection in the prefabricated wall body adopt a chemical bar planting method and a pre-embedded steel bar method. By adopting the method of embedding the tie bars in the frame column, because the embedded tie bars are not firmly bound, the tie bars are easy to displace in the concrete vibrating process of the column, and the steel bars can be seriously slipped off; the method has the advantages that the tie bars are pre-embedded by drilling holes in the template, so that the problems of controlling the positions of the tie bars, chiseling concrete and the like are solved, the difficulty in removing the template and the damage to the template are greatly increased; if short steel bars are used, the welding workload is very large, and the welding quality is difficult to ensure; due to the displacement of the tie bars or the change of the dimension of the masonry skin number rod, the pre-buried positions of the tie bars are difficult to arrange in the horizontal mortar joints of the masonry, so that the phenomenon that the tie bars are bent to be nominal is caused, the tie effect cannot be well played, and the tie effect is particularly serious for a large-size block wall body. The success or failure of the adopted chemical bar planting method and the bar planting technology mainly depends on the mass of a concrete base material, the mass of a steel bar, the strength of a binder, the depth (anchor length) of the steel bar implanted into the concrete, the construction temperature, the quality of pore-forming, the degree of cleanness in a hole, the degree of dryness and wetness in the hole and other factors. And the chemical bar planting method can not solve the problem of additional stress generated at the joint of the tie bar and the prefabricated wall body caused by settlement after building. The problems seriously affect the safety of the structure, reduce the anti-seismic performance of the structure and leave potential quality safety hazards for engineering. Up to now, there is no flexible connection form between the prefabricated wall and the prefabricated frame column which can effectively solve the problem of influence of settlement deformation of the filler wall on the tie bars.
Disclosure of Invention
The invention provides a flexible connection structure between a prefabricated filler wall and a prefabricated frame column, which solves the problem that the prefabricated filler wall generates additional stress on a tie bar due to settlement deformation, improves the local seismic resistance of the structure, and has the advantages of simple structure, clear force transmission, good integrity, convenient construction, safety and reliability.
The technical scheme of the invention is as follows:
a flexible connection structure between a prefabricated filler wall and a prefabricated frame column comprises a prefabricated steel component I, a prefabricated steel component II and connecting reinforcing steel bars, wherein the prefabricated steel component I is of a square tube structure and is fixedly arranged on the side surface of the prefabricated frame column, and a vertical sliding groove is formed in the prefabricated steel component I; two ends of the prefabricated steel component II are respectively provided with a dumbbell-shaped sliding block and a dumbbell-shaped hook; one end of the connecting steel bar is embedded in the prefabricated infilled wall, and the other end of the connecting steel bar is an O-shaped end; the sliding block is placed in the sliding groove, the hook hooks the O-shaped end, and the prefabricated filler wall and the prefabricated frame column are flexibly connected together.
Furthermore, the flexible connection structure between the prefabricated filler wall and the prefabricated frame column is characterized in that reserved holes are formed in the bottoms of the prefabricated filler wall and the prefabricated frame column, reserved steel bars are arranged on the bottom beam, and the prefabricated frame column and the prefabricated filler wall are fixedly connected to the bottom beam through the reserved steel bars and the reserved holes in an inosculating mode.
Furthermore, in the flexible connection structure between the prefabricated filling wall and the prefabricated frame column, a separation gap is reserved between the prefabricated frame column and the prefabricated filling wall, and the separation gap is filled with a filling material.
The invention has the beneficial effects that: according to the invention, through the design method that the separation gap is reserved between the prefabricated filling wall and the prefabricated frame column is filled with the filling material, the interaction between the prefabricated frame column and the prefabricated filling wall is reduced, and the prefabricated frame column and the prefabricated filling wall are in an ideal flexible connection form; by adopting the flexible connection structure, horizontal steel bars of the wall body can be simultaneously settled along with the prefabricated wall, so that the problem that the tie bars are influenced by additional stress due to settlement after the prefabricated filler wall is built in the traditional method can be solved; the flexible connection structure has the advantages of reasonable stress, simple operation, convenient construction and strong durability.
Drawings
FIG. 1 is a schematic view of an assembly vertical plane of a prefabricated infilled wall and a prefabricated frame column connected by a flexible connection structure;
FIG. 2 is a schematic plane view of the connection assembly between the prefabricated filler wall and the prefabricated frame column through the flexible connection structure;
FIG. 3 is a schematic elevation view of a connection form of a prefabricated frame column and a prefabricated steel member I;
FIG. 4 is a structural view of a prefabricated steel member II;
fig. 5 is a schematic elevation view showing the connection form of the connecting reinforcing bars and the prefabricated infilled wall.
Detailed Description
As shown in fig. 1-5, a flexible connection structure between a prefabricated filler wall and a prefabricated frame column comprises a prefabricated steel member I3, a prefabricated steel member II4 and connecting steel bars 9, wherein the prefabricated steel member I3 is of a square tube structure, the prefabricated steel member I3 is fixedly arranged on the side surface of the prefabricated frame column 2, and the prefabricated steel member I3 is provided with a vertical sliding groove 6; two ends of the prefabricated steel component II4 are respectively a dumbbell-shaped sliding block 7 and a hook 8; one end of the connecting steel bar 9 is embedded in the prefabricated infilled wall 1, and the other end of the connecting steel bar 9 is an O-shaped end 10; the sliding block 7 is placed in the sliding groove 6, the hook 8 hooks the O-shaped end 10, and the prefabricated filler wall 1 and the prefabricated frame column 2 are flexibly connected together; the prefabricated filling wall 1 and the prefabricated frame column 2 are provided with reserved holes at the bottoms, the bottom beam 5 is provided with reserved steel bars, and the prefabricated frame column 2 and the prefabricated filling wall 1 are fixedly connected on the bottom beam 5 through the reserved steel bars and the reserved holes in a matching manner; and a separation gap is reserved between the prefabricated frame column 2 and the prefabricated filler wall 1, and the separation gap is filled with a filler material.
Prefabricated steel component I3 and prefabricated steel component II4 can be assembled at the construction site, and dumbbell-shaped slider 7 of prefabricated steel component II4 is inserted into vertical sliding groove 6 from the top end of prefabricated steel component I3, so that slider 7 can slide up and down in prefabricated steel component I3 without sliding out. According to the corresponding position of the actually laid connecting steel bar 9, the sliding block 7 of the prefabricated steel component II4 is slid and the hook 8 is hooked on the O-shaped end head 10. The separation gap between the prefabricated frame column 2 and the prefabricated filler wall 1 is filled with a filler material to play a role of flexible connection.
Claims (3)
1. A flexible connection structure between a prefabricated filler wall and a prefabricated frame column is characterized by comprising a prefabricated steel component I, a prefabricated steel component II and connecting reinforcing steel bars, wherein the prefabricated steel component I is of a square tube structure and is fixedly arranged on the side surface of the prefabricated frame column, and a vertical sliding groove is formed in the prefabricated steel component I; two ends of the prefabricated steel component II are respectively provided with a dumbbell-shaped sliding block and a dumbbell-shaped hook; one end of the connecting steel bar is embedded in the prefabricated infilled wall, and the other end of the connecting steel bar is an O-shaped end; the sliding block is placed in the sliding groove, the hook hooks the O-shaped end, and the prefabricated filler wall and the prefabricated frame column are flexibly connected together.
2. The flexible connection structure between the prefabricated filler wall and the prefabricated frame column as claimed in claim 1, wherein the prefabricated filler wall and the prefabricated frame column are provided with a reserved hole at the bottom, a reserved steel bar is arranged on the bottom beam, and the prefabricated frame column and the prefabricated filler wall are fixed on the bottom beam through the matching connection of the reserved steel bar and the reserved hole.
3. The flexible connection structure between prefabricated filler walls and prefabricated frame columns according to claim 1, wherein a release gap is left between the prefabricated frame columns and the prefabricated filler walls, and the release gap is filled with a filler material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010775441.4A CN111794408A (en) | 2020-08-05 | 2020-08-05 | Flexible connection structure between prefabricated infilled wall and prefabricated frame post |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010775441.4A CN111794408A (en) | 2020-08-05 | 2020-08-05 | Flexible connection structure between prefabricated infilled wall and prefabricated frame post |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111794408A true CN111794408A (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010775441.4A Pending CN111794408A (en) | 2020-08-05 | 2020-08-05 | Flexible connection structure between prefabricated infilled wall and prefabricated frame post |
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|---|---|
| CN (1) | CN111794408A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162556A (en) * | 2022-07-13 | 2022-10-11 | 福建省荣德胜建筑科技股份有限公司 | External wall panel assembling method synchronously constructed with main structure |
-
2020
- 2020-08-05 CN CN202010775441.4A patent/CN111794408A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162556A (en) * | 2022-07-13 | 2022-10-11 | 福建省荣德胜建筑科技股份有限公司 | External wall panel assembling method synchronously constructed with main structure |
| CN115162556B (en) * | 2022-07-13 | 2023-10-27 | 福建省荣德胜建筑科技股份有限公司 | External wall panel assembly method for synchronous construction with main body structure |
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