CN216892932U - Assembled composite wall perps power consumption connection structure - Google Patents

Abstract

The utility model discloses an energy-consuming connecting structure for vertical joints of an assembled composite wall, which is uniformly arranged between vertical joints of walls of a first wall and a second wall and respectively positioned at the end parts of rib beams of the first wall and the second wall; the energy-consuming connecting structure comprises a first embedded part, an energy-consuming steel plate and a second embedded part; the first embedded part and the second embedded part are symmetrically arranged between the vertical seams of the wall body and are respectively and fixedly arranged at the end parts of the rib beams of the first wall body and the second wall body; the energy dissipation steel plate is arranged between the first embedded part and the second embedded part; two ends of the energy-consuming steel plate are fixedly connected with a first embedded part and a second embedded part respectively through high-strength bolts; according to the utility model, the energy-consuming connecting structures are uniformly arranged at the end parts of the rib beams of the composite wall along the vertical seams of the wall body, and the two ends of the energy-consuming steel plate are respectively connected with the wall body through the embedded parts, so that the double functions of connection, energy consumption and vibration reduction are achieved; simple structure, construction convenience, the energy consumption steel sheet only need demolish the bolt after damaging, can realize changing.

Description

A prefabricated composite wall vertical joint energy dissipation connection structure

technical field

The utility model belongs to the technical field of prefabricated composite walls, in particular to an energy-consuming connection structure of vertical joints of prefabricated composite walls.

Background technique

At present, construction industrialization and housing industrialization are in an important stage of development. How to get rid of the existing single development mode of land and make the residential industry develop more rationally and orderly; traditional construction methods have poor construction conditions and difficult management. The labor cost is high, the construction period is short, the efficiency is low, and the construction quality is difficult to guarantee; a prefabricated building refers to a building constructed by reliable connection of prefabricated components, and the connection of prefabricated components must be reliable.

The connection of the prefabricated wall structure is divided into horizontal joint connection and vertical joint connection. The vertical joint is mainly used to transmit the force between adjacent components, bear the vertical shear force, and ensure the overall stability of the structure; the traditional vertical joint Seam connection methods, such as post-cast belt connection, bolted connection and welded connection, are based on the design principle of "equivalent to cast-in-place" and belong to "strong connection". Although they can ensure good seismic performance, post-cast belt connection requires wet work on site. The construction process is complex, the bolted and welded connection structures are complex, and the performance of the joints is greatly affected by the construction process and the environment. Under the action of earthquakes, the walls around the joints are prone to brittle damage, resulting in connection failure.

Therefore, there is an urgent need to propose a new type of wall boundary connection technology and develop efficient and reliable connectors.

Utility model content

Aiming at the technical problems existing in the prior art, the utility model provides a prefabricated composite wall vertical joint energy-consuming connection structure, so as to solve the complex construction process of the existing wall vertical joint connection, and the joint performance is affected by the construction technology and the environment. If it is larger, the wall around the joint is prone to brittle failure, resulting in technical problems of connection failure.

In order to achieve the above object, the technical scheme adopted by the present utility model is:

The utility model provides an assembled composite wall vertical joint energy dissipation connection structure. The energy dissipation connection structure is uniformly arranged between the vertical joints of the first wall and the second wall, and is respectively located in the first wall. The end of the rib beam of the body and the second wall body; the energy dissipation connection structure includes a first embedded part, an energy dissipation steel plate and a second embedded part;

The first embedded part and the second embedded part are symmetrically arranged between the vertical joints of the wall body, and are respectively fixed at the ends of the rib beams of the first wall body and the second wall body; the energy-consuming steel plate is arranged on the first embedded part. between the first embedded part and the second embedded part; the two ends of the energy-consuming steel plate are fixedly connected to the first embedded part and the second embedded part respectively through high-strength bolts.

Further, the structure of the first embedded part is the same as that of the second embedded part, including a web plate, an anchor plate and an end plate; the web plate is vertically arranged at the end of the rib beam of the first wall or the second wall, and Set perpendicular to the wall plane;

The anchor plate is arranged on one side of the web, and the anchor plate is arranged parallel to the plane of the wall; one end of the anchor plate is fixed vertically with the web, and the other end is embedded in the rib beam of the first wall or the second wall; the end plate is arranged On the other side of the web, the end plates are parallel to the plane of the wall;

One end of the end plate is fixed vertically with the web, and the other end is fixedly connected with the energy-consuming steel plate; wherein, one end of the energy-consuming steel plate is fixedly connected with the end plate of the first embedded part through high-strength bolts, and the other end is fixed with the second embedded part. The end plates are fixed and connected by high-strength bolts.

Further, the number of anchor plates and end plates in the first embedded part or the second embedded part is two respectively; the two anchor plates are vertically parallel and embedded in the first wall or the second wall. In the rib beam; the two end plates are vertically parallel, and the distance between the two end plates is greater than the distance between the two anchor plates; the two end plates in the first embedded part pass through the two energy-consuming steel plates and the second The two end plates in the two embedded parts are fixedly connected.

Further, the width of the web is matched with the thickness of the first wall or the second wall; the length of the web is smaller than the height of the rib beam of the first or second wall.

Further, the first embedded part or the second embedded part further includes an anchor bar, one end of the anchor bar is fixedly connected with the anchor plate, and the other end is embedded in the rib beam of the first wall body or the second wall body.

Further, the anchor bars are U-shaped pre-embedded anchor bars, and both ends of the U-shaped pre-embedded anchor bars are welded and fixed with both sides of the anchor plate.

Further, the anchor plate and the web are fixed by welding, and the end plate and the web are fixed by welding.

Further, the energy-consuming steel plate is a rectangular low-yield steel plate.

Further, a steel plate opening is arranged in the middle of the energy-consuming steel plate, and the long axis of the steel plate opening is set in the horizontal direction; the steel plate opening is a plurality of rounded rectangular holes, a plurality of diamond-shaped holes or regular polygonal holes; Corner rectangular holes or multiple diamond-shaped holes are vertically spaced.

Compared with the prior art, the beneficial effects of the present utility model are:

The utility model provides an assembled composite wall vertical joint energy-consuming connection structure. The energy-consuming connection structure is evenly arranged at the end of the rib beam of the composite wall along the vertical joints of the wall, and the two ends of the energy-consuming steel plate pass through the embedded parts respectively. It is connected with the wall and plays the role of connecting the vertical joints of the wall; under the action of small earthquakes, it can ensure the connection strength and rigidity of the adjacent walls; under the action of large earthquakes, by opening holes in the energy-consuming steel plate, it can be properly weakened The bearing capacity of the central section of the energy-consuming steel plate is improved, so that the deformation is concentrated at the energy-consuming steel plate, and it is the first to enter the plastic stage. It is connected with the embedded parts by high-strength bolts. In the post-earthquake repair or replacement process, the energy-consuming steel plate can be replaced and repaired by removing the bolts. The structure is simple and the construction is convenient.

Further, anchor plates and end plates are respectively arranged on both sides of the web for the embedded parts, which ensures the stability and reliability of the connection between the embedded parts and the wall, and ensures the strength of the embedded parts.

Further, the distance between the two end plates is set greater than the distance between the two anchor plates to avoid stress concentration.

Further, by disposing two anchor plates and end plates respectively, the connection strength and rigidity of the embedded parts are effectively improved.

Further, by setting anchor bars and pre-embedding the anchor bars in the rib beam, sufficient anchoring strength is provided for the embedded parts.

Further, the energy-consuming steel plate is made of low-yield steel, and the section is weakened by using different forms of openings, so that the position of the plastic hinge can be controlled, and the deformation at the rib-beam and rib-column joints can be transferred to the energy-dissipating connector. , effectively reducing the damage to the wall.

Further, the forms of openings on the energy-consuming steel plate include rounded rectangles, diamonds and polygons to meet different energy consumption requirements and expand the applicable scope of the energy-consuming connection structure.

Description of drawings

Fig. 1 is the assembly structure schematic diagram of the vertical joint energy dissipation connection structure of the prefabricated composite wall according to the utility model;

Fig. 2 is the overall structure schematic diagram of the vertical joint energy dissipation connection structure of the prefabricated composite wall according to the utility model;

Fig. 3 is the top view of the vertical joint energy dissipation connection structure of the prefabricated composite wall according to the utility model;

4 is a schematic structural diagram of an energy-consuming steel plate in Example 1;

5 is a schematic structural diagram of an energy-consuming steel plate in Example 2;

FIG. 6 is a schematic structural diagram of the energy-consuming steel plate in Example 3. FIG.

Among them, 1 first wall, 2 second wall, 3 energy-consuming connectors; 31 webs, 32 anchor plates, 33 end plates, 34 anchor bars, 35 energy-consuming steel plates, 36 high-strength bolts, 37 nuts, 38 pads Sheet, 39 end plate bolt holes; 351 steel plate openings, 352 steel plate bolt holes.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the following specific embodiments will further describe the present invention in detail. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

The utility model provides an assembled composite wall vertical seam energy dissipation connection structure, the energy dissipation connection structure is evenly arranged between the vertical seams of the first wall body 1 and the second wall body 2, and is respectively located in the first wall body 1 and the second wall body 2. A rib beam end of a wall body 1 and a second wall body 2; the energy dissipation connection structure includes a first embedded part, an energy dissipation steel plate 35 and a second embedded part; the first embedded part and the second embedded part The parts are symmetrically arranged between the vertical joints of the wall, and the energy-consuming steel plate 35 is arranged between the first embedded part and the second embedded part; Two embedded parts are fixedly connected.

The structure of the first embedded part is the same as that of the second embedded part, including a web 31, an anchor plate 32 and an end plate 33; The anchor plate 32 is arranged on one side of the web 31, and the anchor plate 32 is arranged parallel to the wall plane; one end of the anchor plate 32 is fixed vertically with the web 31, and the other end is embedded in the first In the rib beam of the wall body 1 or the second wall body 2; the end plate 33 is arranged on the other side of the web 31, the end plate 33 is parallel to the plane of the wall, and is fixed vertically to the web 31; among them, the energy-consuming steel plate 35 One end is fixedly connected to the end plate 33 of the first embedded part through high-strength bolts 36 , and the other end is fixedly connected to the end plate 33 of the second embedded part through high-strength bolts 36 .

In the utility model, the energy-consuming connection structure is evenly arranged on the end of the rib beam of the composite wall along the vertical joints of the wall body, and the two ends of the energy-consuming steel plate are respectively connected with the wall body through the embedded parts, which play the role of connection and energy consumption and vibration reduction. Under the action of small earthquakes, it can ensure the connection strength and stiffness of adjacent walls; under the action of large earthquakes, the energy-consuming steel plate first enters the plastic stage, and reduces the seismic response of the structure through its plastic properties. The function of energy consumption and vibration reduction; the structure is simple, the construction is convenient, and the energy-consuming steel plate can be replaced by removing the bolts after damage.

The construction method of an assembled composite wall vertical joint energy dissipation connection structure according to the present utility model comprises the following steps:

Step 1. Component processing

Process and manufacture the first embedded part, the second embedded part and the energy-consuming steel plate according to the requirements;

Step 2. Prefabricated composite walls

Bind the reinforcement bars of the first wall or the second wall, install the first embedded part on the end of the rib beam of the first wall, install the second embedded part on the end of the rib beam of the second wall, and stand upright. The formwork is poured into concrete, and the formwork is removed to obtain the first wall body and the second wall body;

Step 3. Wall hoisting and energy-consuming steel plate installation

After the first wall body and the second wall body reach the preset strength, the first wall body and the second wall body are hoisted to the preset position; after that, a wear is arranged between the corresponding first embedded part and the second embedded part. energy-consuming steel plate, and it is convenient for high-strength bolts to fix the two ends of the energy-consuming steel plate with the first embedded part and the second embedded part respectively.

Example 1

As shown in FIGS. 1-4 , this embodiment provides an energy-consuming connection structure for vertical joints of a prefabricated composite wall, and the energy-consuming connection structure is evenly arranged on the walls of the first wall body 1 and the second wall body 2 between the vertical slits and at the ends of the rib beams of the first wall body 1 and the second wall body 2 respectively.

The energy-consuming connection structure includes a first embedded part, an energy-consuming steel plate 35 and a second embedded part, and the first embedded part and the second embedded part are symmetrically arranged between the vertical joints of the wall; The embedded part is arranged at the end of the rib beam of the first wall body 1, the second embedded part is arranged at the end of the rib beam of the second wall body 2; the energy-consuming steel plate 35 is arranged on the first embedded part and the second embedded part In between, the two ends of the energy-consuming steel plate 35 are respectively fixedly connected to the first embedded part and the second embedded part through high-strength bolts 36 .

The first embedded part has the same structure as the second embedded part, including a web 31, two anchor plates 32, two end plates 33 and two anchor bars 34; the web 31 is vertically arranged on the first wall 1 Or the end of the rib beam of the second wall 2, and is arranged perpendicular to the plane of the wall; the anchor plate 32 is arranged on one side of the web 31, and the end plate 33 is arranged on the other side of the web 31.

The two anchor plates 32 are vertically spaced and parallel, and are respectively parallel to the plane of the wall; one end of the anchor plate 32 is vertically fixed with the web 31, and the other end is embedded in the rib beam of the first wall 1 or the second wall 2; The two end plates 33 are vertically parallel, and are respectively parallel to the plane of the wall; one end of the end plate 33 is vertically fixed to the web 31, and the other end is fixedly connected to the energy-consuming steel plate 35 through high-strength bolts 36; One end is fixedly connected to the end plate 33 of the first embedded part through high-strength bolts 36 , and the other end is fixedly connected to the end plate 33 of the second embedded part through high-strength bolts 36 .

The end plate 33 is provided with end plate bolt holes 39, the two ends of the energy-consuming steel plate 35 are respectively provided with steel plate bolt holes 352, the steel plate bolt holes 352 are matched with the end plate bolt holes 39, and the high-strength bolts 36 pass through the steel plate bolt holes 352 and 35 in turn. The end plate bolt holes 39; the end plate 33 and the energy-consuming steel plate 35 are fixedly connected together by high-strength bolts 36.

The two anchor bars 34 are arranged in parallel up and down, one end of the anchor bars 34 is fixedly connected with the web 31, and the other end is embedded in the rib beam of the first wall 1 or the second wall 2; preferably, the anchor bars 34 are U-shaped For the pre-embedded anchor bars, both ends of the U-shaped pre-embedded anchor bars are welded and fixed with the web 31 , and the anchor bars 34 are arranged on the outer side of the anchor plate 32 .

In this embodiment, the distance between the two end plates 33 is greater than the distance between the two anchor plates 32; the two end plates 33 in the first embedded part pass through the two energy-consuming steel plates 35 and the second embedded parts respectively. The two end plates 33 in the part are fixedly connected; the width of the web 31 matches the thickness of the first wall 1 or the second wall 2; the length of the web 31 is smaller than that of the first wall 1 or the second wall The height of the rib beam of the body 2; the anchor plate 32 and the web 31 are fixed by welding, and the end plate 33 and the web 31 are fixed by welding.

In this embodiment, the energy-consuming steel plate 35 is a rectangular low-yield steel plate; the middle of the energy-consuming steel plate 35 is provided with a steel plate opening 351, and the long axis of the steel plate opening 351 is arranged in the horizontal direction; the steel plate opening 351 is a plurality of rounded rectangles holes; wherein, a plurality of rounded rectangular holes are vertically spaced.

The construction method of a prefabricated composite wall vertical joint energy-consuming connection structure described in this embodiment includes the following steps:

Step 1. Fabrication of embedded parts

Weld the two anchor plates to the web respectively, on the same side, and the anchor plate is perpendicular to the web; the end plate is welded to the opposite side of the anchor plate, and the welding position is wider than the anchor plate to avoid stress concentration; Welding, the weld strength must meet the specification requirements.

Step 2. Prefabricated composite walls

Bind the steel bars of the wall, place the energy-consuming connectors at the rib beams of the assembled composite wall, form the vertical form, pour concrete, and remove the formwork to form a prefabricated composite wall panel.

Step 3. Wall hoisting and energy-consuming steel plate installation

Hoist the prefabricated wall panels to the installation position, so that the adjacent wall panels are flush in the horizontal direction, and after the two prefabricated composite wall panels meet the vertical requirements; The center of the hole, the bolt hole of the end plate and the high-strength bolt coincide, place the gasket, tighten the nut, and fix it for joint treatment.

Example 2

The structure and principle of a prefabricated composite wall vertical joint energy dissipation connection structure provided in Example 2 is basically the same as the structure and principle of the prefabricated composite wall energy dissipation connection structure described in Embodiment 1. The difference is: as shown in Figure 5 , the middle of the energy-consuming steel plate 35 in Embodiment 2 is provided with a steel plate opening 351 as a plurality of diamond-shaped holes; wherein, the plurality of diamond-shaped holes are arranged at vertical intervals.

Example 3

The structure and principle of the prefabricated composite wall vertical joint energy dissipation connection structure provided in Example 3 is basically the same as the structure and principle of the prefabricated composite wall energy dissipation connection structure described in Example 1. The difference is: as shown in Figure 6 , the middle of the energy-consuming steel plate 35 in Example 6 is provided with a steel plate opening 351 which is a regular polygon hole.

The assembled composite wall vertical joint energy-consuming connection structure of the utility model can simultaneously play the functions of connection, energy-consuming and shock-absorbing, and at the same time, the cost is low, the construction is simple, and the engineering applicability is strong; The energy-consuming connection structure includes embedded parts and energy-consuming steel plates; the embedded parts include anchor plates, end plates, web plates and anchor bars; wherein, the anchor plates, end plates, web plates and anchor bars are all ordinary steel; The anchor plate and end plate are connected to the web by welding. Both the anchor plate and the end plate should be perpendicular to the web to ensure uniform force in the vertical direction. The quality of the weld should meet GB50661-2011 "Welding Specification for Steel Structures".

In the utility model, the width of the web is the same as the thickness of the wall, and the length is less than the height of the rib beam of the wall, so as to ensure that the embedded anchor plate can be anchored into the wall, and the phenomenon of steel bar fighting will not occur; the anchor bar is a U-shaped anchor. The two ends of the anchor rib are welded to two anchor plates respectively to provide sufficient anchoring strength for the embedded parts; the end plate is provided with circular bolt holes to facilitate the connection between the energy-consuming steel plate and the end plate.

In the utility model, the energy-consuming steel plate is made of low-yield steel. In order to make the energy-dissipating connector fully function, the energy-consuming steel plate is a rectangular low-yield steel plate with an opening in the middle and bolt holes at both ends. The cross-sectional area of the steel plate makes the plastic hinge appear at the energy-dissipating connector, and the position of the plastic hinge can be controlled; in addition, under the action of a large earthquake, the damage of the energy-dissipating connector at the vertical joint is generally the most serious. When repairing, it is only necessary to remove the energy-consuming steel plate and replace the energy-consuming connecting parts, so as to realize the rapid repair of the structure.

The bolt holes opened in the energy-consuming steel plate are used for the connection between the energy-consuming steel plate and the embedded parts. The openings in the middle of the energy-consuming steel plate are set to three different forms: rounded rectangle, diamond and regular polygon. After experimental research, all of them have better performance. energy consumption.

In the utility model, the energy-consuming steel plate and the end plate are connected by high-strength bolts, and the high-strength bolts pass through the bolt holes of the energy-consuming steel plate and the end plate, and are fastened and fixed by gaskets and nuts.

In the assembled composite wall vertical joint energy-consuming connection structure of the utility model, the energy-consuming steel plate is made of low-yield steel, and the cross-section is weakened by using different forms of openings, so that the position where the plastic hinge appears is controllable; the utility model It can play the dual role of connection and energy dissipation and shock absorption. Under the action of small earthquakes, it can ensure the connection strength and rigidity of adjacent walls. Under the action of large earthquakes, the energy-dissipating connectors take the lead in entering the plastic stage, and the plasticity generated by them is the first. The performance reduces the seismic response of the structure, and plays the role of energy consumption and shock absorption; this connection method is simple to operate and convenient to construct. After the energy consumption plate is damaged, it is only necessary to remove the bolts to realize the replacement of the energy consumption steel plate.

The above-mentioned embodiment is only one of the embodiments that can realize the technical solution of the present invention. The scope of protection of the present invention is not only limited by the present embodiment, but also included in the technical scope disclosed by the present invention. Any Variations, substitutions, and other embodiments will readily occur to those skilled in the art.

Claims (9)

1. A prefabricated composite wall vertical joint energy dissipation connection structure, characterized in that the energy dissipation connection structure is evenly arranged between the wall vertical joints of a first wall body (1) and a second wall body (2) , and are respectively located at the ends of the rib beams of the first wall (1) and the second wall (2); the energy-consuming connection structure includes a first embedded part, an energy-consuming steel plate (35) and a second embedded part ; The first embedded part and the second embedded part are symmetrically arranged between the vertical joints of the wall body, and are respectively fixed on the ends of the rib beams of the first wall body (1) and the second wall body (2); the energy-consuming steel plate (35) is arranged between the first embedded part and the second embedded part; the two ends of the energy-consuming steel plate (35) are fixedly connected to the first embedded part and the second embedded part respectively by high-strength bolts (36). 2. An assembled composite wall vertical seam energy dissipation connection structure according to claim 1, characterized in that the first embedded part and the second embedded part have the same structure, and respectively comprise a web (31), an anchor The plate (32) and the end plate (33); the web (31) is vertically arranged at the end of the rib beam of the first wall (1) or the second wall (2), and is arranged perpendicular to the plane of the wall; The anchor plate (32) is arranged on one side of the web plate (31), and the anchor plate (32) is arranged parallel to the plane of the wall body; one end of the anchor plate (32) is fixed vertically with the web plate (31), and the other end is embedded in the first In the rib beam of the wall (1) or the second wall (2); the end plate (33) is arranged on the other side of the web (31), and the end plate (33) is parallel to the plane of the wall; One end of the end plate (33) is vertically fixed to the web (31), and the other end is fixedly connected to the energy-consuming steel plate (35); wherein, one end of the energy-consuming steel plate (35) is connected to the end plate (33) of the first embedded part The other end is fixedly connected with the end plate (33) of the second embedded part by high-strength bolts (36). 3. An assembled composite wall vertical joint energy dissipation connection structure according to claim 2, characterized in that the anchor plate (32) and the end plate (33) in the first embedded part or the second embedded part The two anchor plates (32) are vertically parallel and embedded in the rib beams of the first wall (1) or the second wall (2); the two end plates (33) are vertical parallel to each other, the distance between the two end plates (33) is greater than the distance between the two anchor plates (32); the two end plates (33) in the first embedded part pass through two energy-consuming steel plates (35) respectively ) are fixedly connected with the two end plates (33) in the second embedded part. 4. An assembled composite wall vertical joint energy dissipation connection structure according to claim 2, characterized in that the width of the web (31) is the same as the width of the first wall (1) or the second wall (2). The wall thicknesses are matched; the length of the web (31) is less than the height of the rib beam of the first wall (1) or the second wall (2). 5. An assembled composite wall vertical joint energy dissipation connection structure according to claim 2, characterized in that the first embedded part or the second embedded part further comprises anchor bars (34), anchor bars (34) One end is fixedly connected with the anchor plate (32), and the other end is embedded in the rib beam of the first wall body (1) or the second wall body (2). 6. An assembled composite wall vertical joint energy dissipation connection structure according to claim 5, characterized in that the anchor bars (34) are U-shaped pre-embedded anchor bars, and both ends of the U-shaped pre-embedded anchor bars are connected to the anchor bars. Both sides of the plate (32) are welded and fixed. 7. An assembled composite wall vertical joint energy dissipation connection structure according to claim 2, characterized in that the anchor plate (32) and the web (31) are fixed by welding, and the end plate (33) and the web are fixed by welding. The plates (31) are fixed by welding. 8 . The vertical joint energy dissipation connection structure of an assembled composite wall according to claim 1 , wherein the energy dissipation steel plate ( 35 ) is a rectangular low-yield steel plate. 9 . 9 . The vertical joint energy dissipation connection structure of a prefabricated composite wall according to claim 8 , wherein a steel plate opening ( 351 ) is provided in the middle of the energy-consuming steel plate ( 35 ), and the steel plate opening ( 351 ) The long axis is arranged in the horizontal direction; the steel plate openings (351) are multiple rounded rectangular holes, multiple diamond-shaped holes or regular polygonal holes; wherein the multiple rounded rectangular holes or multiple diamond-shaped holes are vertically spaced.

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