CN216865577U - A vertical connection structure for frictional energy dissipation of prefabricated shear walls with U-shaped connectors - Google Patents

Abstract

The utility model discloses an assembled shear wall friction energy dissipation vertical connecting structure with a U-shaped connecting piece, which comprises an assembling member, a wall body, the U-shaped connecting piece, a wall connecting piece, a high-strength bolt and a friction gasket, wherein the assembling member is fixedly connected with the wall body; the U-shaped connecting piece comprises a main body part and a connecting part, wherein two ends of the main body part are respectively connected with the connecting part, the main body part is embedded into the assembly component, the connecting part is partially exposed out of the assembly component, and the connecting part extends towards the direction of the wall body; the height of the wall connecting piece is the same as that of the U-shaped connecting piece, the wall connecting piece comprises two fixing plates and a screw pipeline, two ends of the screw pipeline are respectively connected with the fixing plates, the screw pipeline and the fixing plates are pre-embedded into the wall body, the fixing plates are partially exposed on the side face of the wall body, a hole expanding type bolt hole is formed in each fixing plate, and the screw pipeline is a hole expanding type screw pipeline; the wall connecting piece is embedded between the two connecting parts, the wall body is abutted to the assembly component, the friction gasket is clamped between the fixing plate and the connecting parts, and the U-shaped connecting piece and the wall connecting piece are connected through the high-strength bolt.

Description

A vertical connection structure for frictional energy dissipation of prefabricated shear walls with U-shaped connectors

technical field

The utility model relates to the technical field of prefabricated buildings, in particular to an assembled shear wall friction and energy dissipation vertical connection structure with a U-shaped connecting piece.

Background technique

With the development and requirements of building energy conservation and emission reduction and housing industrialization, the research and development and application of prefabricated structures have become the focus of the development of the construction industry. The components of the prefabricated structure are prefabricated in the factory and then installed and connected on site, which has the advantages of saving labor, fast construction progress, being conducive to building energy conservation, and facilitating industrial production and mechanized construction. The connection of vertical joints between prefabricated shear walls is a key technology in the structure of prefabricated concrete shear walls. Currently, the commonly used vertical joint connection method is mainly cast-in-place concrete connection, which requires on-site wet operation. The construction is complicated; due to the uneven shrinkage effect between the old and new concrete, the wall may crack during use; after the full-height connection between the vertical joints, the stiffness of the wall is large, but the deformation capacity is reduced. Therefore, the prefabricated shear wall structure needs to propose a vertical joint connection method that is more efficient, fast, reliable connection, and energy-consuming.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, to provide a vertical connection structure of friction and energy dissipation of an assembled shear wall with a U-shaped connector, so as to solve the problem of poor vertical joint connection performance of the assembled shear wall and construction problems. Technical problems such as high difficulty and poor energy consumption performance.

The technical scheme of the utility model is as follows: an assembled shear wall friction and energy dissipation vertical connection structure with U-shaped connectors, including assembly components, walls, U-shaped connectors, wall connectors, high-strength bolts and friction pads piece;

The U-shaped connector includes a main body part and two connecting parts. The two ends of the main body part are respectively connected with the two connecting parts. The connecting portion extends toward the wall, and the connecting portion is provided with a fixing hole;

The height of the wall connecting piece is the same as the height of the U-shaped connecting piece. The wall connecting piece includes two fixing plates and screw pipes. The two ends of the screw pipes are respectively connected with the fixing plates. The screw pipes and the fixing plates are embedded in the wall , the fixed plate is partially exposed on the side of the wall, the fixed plate is provided with reaming type bolt holes, and the screw pipe is a reaming type screw pipe;

The wall connector is embedded between the two connecting parts, the wall body is abutted to the assembling member, the friction pad is clamped between the fixing plate and the connecting part, and the friction pad is provided with a connecting hole, the fixing hole, the connecting hole, The extended bolt hole and the screw pipe are connected with each other, the high-strength bolts pass through the fixing hole, the connecting hole, the extended bolt hole and the screw pipe, and the U-shaped connector and the wall connector are connected by high-strength bolts.

Further, the reaming type bolt holes are vertically extended bolt holes, and the screw pipes are vertically extended screw pipes.

Further, the contact surfaces between the friction pad and the fixing plate are respectively sandblasted. By increasing the friction coefficient between the contact surfaces, when the load causes frictional slippage on the contact surfaces, frictional energy dissipation can be achieved and the damage to the composite wall during earthquake action can be reduced.

Further, the friction pads are aluminum friction pads.

Further, anchor bars are provided on the main body portion, and the extension direction of the anchor bars is opposite to the extension direction of the connection portion. By arranging anchor bars, the connection between the main body and the concrete of the assembly member is enhanced.

Further, the assembling member is vertically embedded with a plurality of U-shaped connectors, the wall body is vertically embedded with a plurality of wall connectors, and the plurality of U-shaped connectors and the plurality of wall connectors are in one-to-one correspondence.

Further, both ends of the screw pipe and the fixing plate are fixed by welding.

Further, the assembly member is a column or a shear wall.

The working principle of the frictional energy dissipation vertical connection structure of the assembled shear wall with U-shaped connectors of the present invention: under normal use or earthquake action, when the wall body is vertically deformed or displaced, due to the U-shaped connectors The fixing hole on the wall and the connecting hole on the friction washer are not enlarged, and the two remain unchanged with the high-strength screw, while the wall connection is provided with a vertical expansion bolt hole, and the contact between the friction washer and the fixing plate The surfaces are sandblasted respectively. When the vertical deformation or displacement of the wall occurs, a relative slippage process occurs between the fixed plate and the friction pad to realize frictional energy consumption.

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

The friction and energy dissipation vertical connection structure of the assembled shear wall with U-shaped connecting piece of the utility model can be prefabricated in a processing plant, which is convenient for on-site installation and construction, simple in operation, convenient in construction, and can improve construction efficiency; The traditional prefabricated high-strength bolt connection structure without reaming, the connection between wall-column or wall-wall is connected by high-strength bolts and vertically enlarged bolt holes, and the vertical connection structure is generated by the wall connection and friction gasket. The relative sliding can achieve the effect of friction and energy dissipation, which can provide energy dissipation function in the vertical direction; the U-shaped connector is embedded in the assembly component, which can improve the installation accuracy and rigidity of the connector, and only need to carry out high-strength on one side of the wall. The bolt connection saves the material of the connector, saves the construction time, and improves the construction accuracy. It is not only suitable for the case where the section width of the assembly member is larger than the wall, but also for the case where the assembly member is the same width as the wall, and has wide applicability.

Description of drawings

FIG. 1 is a schematic structural diagram of the friction and energy dissipation vertical connection structure of the assembled shear wall with U-shaped connectors of the present invention.

FIG. 2 is an exploded view of the frictional energy dissipation vertical connection structure of the assembled shear wall with U-shaped connectors of the present invention.

FIG. 3 is a front view of the frictional energy dissipation vertical connection structure of the assembled shear wall with U-shaped connectors of the present invention.

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3 .

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3 .

6 is a schematic structural diagram of the frictional energy dissipation vertical connection structure of the assembled shear wall with a U-shaped connector in Embodiment 2 of the present utility model.

Assembly member 1, wall body 2, U-shaped connector 3, main body 31, connecting portion 32, anchor bar 33, fixing hole 34, wall connector 4, fixing plate 41, screw pipe 42, reaming type bolt hole 43, High-strength bolts 5, friction washers 6, and connecting holes 61.

Detailed ways

The present utility model will be further described in detail below with reference to the examples, but the embodiments of the present utility model are not limited thereto.

Example 1

As shown in FIG. 1 and FIG. 2 , this embodiment provides an assembled shear wall friction and energy dissipation vertical connection structure with a U-shaped connector, including an assembly component 1, a wall body 2, a U-shaped connector 3, Wall connectors 4, high-strength bolts 5 and friction washers 6.

As shown in Figures 2 and 5, the U-shaped connector includes a main body 31, two connecting parts 32 and anchor ribs 33. Both ends of the main body are connected to the two connecting parts respectively, and the main body is pre-embedded in the assembly member. The two connecting parts are partially exposed outside the assembling member, the two connecting parts extend toward the wall, and the connecting parts are provided with fixing holes 34; By arranging anchor bars, the connection between the main body and the concrete of the assembly member is enhanced.

As shown in Figures 2 and 4, the height of the wall connector is the same as the height of the U-shaped connector. The wall connector includes two fixing plates 41 and screw pipes 42. The two ends of the screw pipes are respectively fixed with the fixing plates by welding. The screw pipe and the fixing plate are pre-buried in the wall, the fixing plate is partially exposed on the side of the wall, the fixing plate is provided with reaming type bolt holes 43, and the screw pipe is a reaming type screw pipe; The hole type bolt hole is a vertically extended bolt hole, and the screw pipe is a vertically extended screw pipe.

As shown in FIG. 1 , the assembly member is vertically embedded with a plurality of U-shaped connectors, and the wall body is vertically embedded with a plurality of wall connectors, and the U-shaped connectors and the wall connectors are in one-to-one correspondence.

As shown in Figures 3 and 5, the wall connecting piece is embedded between the two connecting parts, and the wall body is abutted against the assembling member. In this embodiment, the friction pad is made of aluminum, and the friction pad is clamped on the Between the fixed plate and the connecting portion, the friction pad is provided with a connecting hole 61, and the contact surfaces between the friction pad and the fixed plate are respectively sandblasted. By increasing the friction coefficient between the contact surfaces, when the load causes frictional slippage on the contact surfaces, frictional energy dissipation can be achieved and the damage to the composite wall during earthquake action can be reduced. The fixing hole, the connecting hole, the extended bolt hole and the screw pipe are connected with each other, and the high-strength bolts pass through the fixing hole, the connecting hole, the extended bolt hole and the screw pipe to tightly connect the U-shaped connector and the wall connector.

In this embodiment, the assembly member is a cylinder.

The construction method of the above-mentioned prefabricated shear wall friction and energy dissipation vertical connection structure with U-shaped connectors, the prefabrication of the column and the wall, the U-shaped connector and the wall connector should be carried out at the same time when the column and the wall are prefabricated. For prefabricated installation, the installation height of the wall connector should be consistent with the installation height of the corresponding U-shaped connector. During on-site construction, carry out the installation and positioning of the column, hoist the wall until the corresponding position of the column is flush, and align the reaming bolt holes and screw pipes on the wall connector with the fixing holes on the U-shaped connector. Then, install the aluminum friction pad between the U-shaped connector and the wall connector, and sandblast the contact surface of the wall connector and the friction pad. The connecting holes are aligned with the fixing holes of the U-shaped connector, and then high-strength bolts are installed, and a pre-tightening force is applied to the high-strength bolts, so that the U-shaped connector, the wall connector and the friction gasket are all pressed together.

The working principle of the frictional energy dissipation vertical connection structure of the assembled shear wall with U-shaped connectors of the present invention: under normal use or earthquake action, when the wall body is vertically deformed or displaced, due to the U-shaped connectors The fixing hole on the wall and the connecting hole on the friction washer are not enlarged, and the two remain unchanged with the high-strength screw, while the wall connection is provided with a vertical expansion bolt hole, and the contact between the friction washer and the fixing plate The surfaces are sandblasted respectively. When the vertical deformation or displacement of the wall occurs, a relative slippage process occurs between the fixed plate and the friction pad to realize frictional energy consumption.

Example 2

As shown in FIG. 6 , the difference between this embodiment and Embodiment 1 is that the assembly member in this embodiment is a shear wall.

As mentioned above, the present utility model can be better realized, and the above-mentioned embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of implementation of the present utility model; and modifications are all covered by the scope of protection required by the claims of the present invention.

Claims (8)

1. An assembled shear wall friction energy consumption vertical connecting structure with a U-shaped connecting piece is characterized by comprising an assembling member, a wall body, the U-shaped connecting piece, a wall connecting piece, a high-strength bolt and a friction gasket;

the U-shaped connecting piece comprises a main body part and two connecting parts, wherein two ends of the main body part are respectively connected with the two connecting parts, the main body part is embedded into the assembly member, the two connecting parts are partially exposed outside the assembly member, the two connecting parts extend towards the direction of the wall body, and the connecting parts are provided with fixing holes;

the height of the wall connecting piece is the same as that of the U-shaped connecting piece, the wall connecting piece comprises two fixing plates and a screw pipeline, two ends of the screw pipeline are respectively connected with the fixing plates, the screw pipeline and the fixing plates are pre-embedded into the wall body, the fixing plates are partially exposed on the side face of the wall body, a hole expanding type bolt hole is formed in each fixing plate, and the screw pipeline is a hole expanding type screw pipeline;

the wall connecting piece is embedded between the two connecting parts, the wall body is abutted to the assembling component, the friction gasket is clamped between the fixing plate and the connecting parts, the friction gasket is provided with a connecting hole, the fixing hole, the connecting hole, the expansion bolt hole and the screw pipeline are communicated with each other, the high-strength bolt penetrates through the fixing hole, the connecting hole, the expansion bolt hole and the screw pipeline, and the U-shaped connecting piece is connected with the wall connecting piece through the high-strength bolt.

2. The assembled shear wall friction energy dissipation vertical connection structure with the U-shaped connecting piece according to claim 1, wherein the hole expanding bolt hole is a vertical expanding bolt hole, and the screw pipeline is a vertical expanding screw pipeline.

3. The fabricated shear wall friction energy dissipation vertical connection structure with the U-shaped connecting piece according to claim 1, wherein the contact surfaces between the friction gaskets and the fixing plates are respectively subjected to sand blasting.

4. The fabricated shear wall friction energy dissipation vertical connection structure with the U-shaped connecting piece according to claim 1, wherein the friction gasket is an aluminum friction gasket.

5. The assembled shear wall friction energy dissipation vertical connection structure with the U-shaped connecting piece according to claim 1, wherein an anchor bar is arranged on the main body part, and the extending direction of the anchor bar is opposite to the extending direction of the connecting part.

6. The assembled shear wall friction energy consumption vertical connection structure with the U-shaped connecting pieces according to claim 1, wherein the plurality of U-shaped connecting pieces are embedded in the assembly component along the vertical direction, the plurality of wall connecting pieces are embedded in the wall body along the vertical direction, and the plurality of U-shaped connecting pieces and the plurality of wall connecting pieces are respectively in one-to-one correspondence.

7. The assembled shear wall friction energy dissipation vertical connection structure with the U-shaped connecting piece according to claim 1, wherein two ends of the screw pipeline are fixed with the fixing plate through welding.

8. The fabricated shear wall friction energy dissipation vertical connection structure with the U-shaped connecting piece according to claim 1, wherein the fabricated component is a column or a shear wall.

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