Node structure at viscous damper mounting hole of building outer wall

Abstract

The utility model discloses a node structure at a viscous damper mounting hole of a building outer wall, and relates to the technical field of building construction. The problems that an existing building facade base layer treatment structure provided with a viscous damper is poor in construction quality and large in potential safety hazard are solved. Comprising a waterproof heat preservation plate, the waterproof heat preservation plate comprises a base plate layer, waterproof layers sprayed on the two sides of the base plate layer and a heat preservation layer arranged on one side of the base plate layer, and the size of the waterproof heat preservation plate is matched with that of an installation hole of a viscous damper in a building outer wall, so that the waterproof heat preservation plate can be embedded in and block the installation hole; the supporting device comprises a bracket and connecting pieces, the waterproof heat preservation plate is fixed to one side of the bracket, the multiple connecting pieces are arranged close to the mounting hole and fix the cantilever walls on the two sides of the mounting hole, and the bracket is detachably connected with the multiple connecting pieces.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly relates to a node structure at the installation opening of a viscous damper on a building exterior wall. Background Technique

[0002] Building shock absorption is to set energy dissipation devices at some parts of the structure (such as supports, shear walls, joints or connectors), and through the energy dissipation devices to generate friction, bending, elastoplastic hysteretic deformation to dissipate or absorb the energy input by the earthquake to the structure, so as to reduce the seismic response of the main building structure, thereby avoiding the damage or collapse of the building structure and achieving the purpose of shock absorption control.

[0003] With the popularization and application of building shock absorption technology in cold regions in the north, the quality requirements for building entity construction are getting higher and higher. The construction quality of the waterproof and thermal insulation node treatment at the installation position of the viscous damper (VFD) on the building exterior wall has become the key and difficult point in the construction process. Once the detailed node treatment is improper, phenomena such as water seepage, air leakage, and mildew will occur. At present, for the base treatment of the building exterior wall where the viscous damper is installed, external masonry filling blocks or wire mesh mortar plastering are usually used for plugging, and then the construction of the thermal insulation layer is carried out. These construction methods often have the following problems:

[0004] 1. The wire mesh mortar plastering is prone to problems such as poor bonding, cracking, and peeling at the opening; the wire mesh mortar plastering is easy to penetrate, and the thickness cannot meet the anchoring depth of the expansion bolts of the thermal insulation board;

[0005] 2. When externally masonry filling blocks are used on the building structure, the operating space is limited, it is not easy to implant steel bars, and the bonding effect between the blocks and the concrete is poor; usually, the blocks are masonry during the secondary structure construction, and the exterior wall scaffolding has basically been removed, and only hanging baskets can be used for construction, which has great potential safety hazards, and the construction process is complex, increasing the construction cost. Summary of the Invention

[0006] Aiming at the problems of poor construction quality and great potential safety hazards existing in the base treatment structure of the building exterior wall where the viscous damper is installed. The purpose of the utility model is to provide a node structure at the installation opening of a viscous damper on a building exterior wall.

[0007] The technical solution adopted by the utility model to solve its technical problems is: a node structure at the installation opening of a viscous damper on a building exterior wall, including:

[0008] A waterproof and thermal insulation board, including a substrate layer, a waterproof layer sprayed on both sides of the substrate layer, and a thermal insulation layer provided on one side of the substrate layer. The waterproof and thermal insulation board is adapted to the size of the installation opening of the viscous damper on the building exterior wall, so that the waterproof and thermal insulation board can be embedded and plugged into the installation opening;

[0009] The supporting device includes a bracket and connecting pieces. The waterproof and heat-insulating board is fixed to one side of the bracket. A plurality of connecting pieces are arranged close to the installation opening and fix the cantilever walls on both sides thereof. The connection between the bracket and the plurality of connecting pieces is detachable.

[0010] The node structure at the installation opening of the viscous damper on the building exterior wall of the present utility model includes a waterproof and heat-insulating board and a supporting device. The waterproof and heat-insulating board includes a substrate layer, a waterproof layer sprayed on both sides of the substrate layer, and a heat-insulating layer arranged on one side of the substrate layer. The waterproof and heat-insulating board is fixed to one side of the bracket of the supporting device. A plurality of connecting pieces are arranged close to the installation opening and fix the cantilever walls on both sides thereof. The connection between the bracket and the plurality of connecting pieces is detachable; since connecting pieces are arranged at the positions of the upper and lower cantilever walls close to the installation opening, and the bracket connected with the waterproof and heat-insulating board is detachably connected to the connecting pieces, the waterproof and heat-insulating board can be embedded and sealed in the installation opening, improving the reliability and integrity of the connection between the waterproof and heat-insulating board and the exterior wall, ensuring the construction quality at the connection node between the waterproof and heat-insulating board and the exterior wall, effectively solving the quality problems and safety hazards after construction, and having strong application and popularization value; moreover, the materials used in the node structure are convenient to process and easy to install and construct, reducing the construction cost.

[0011] Further, the substrate layer is made of a fiber-reinforced silicate board.

[0012] Further, the waterproof layer is made of a polyurethane material sprayed on both sides of the substrate layer.

[0013] Further, the heat-insulating layer is made of an inorganic heat-insulating fiber material sprayed on one side of the substrate layer and covering the waterproof layer on one side.

[0014] Further, the bracket is U-shaped, the connecting piece is L-shaped. One side plate of the connecting piece is bolted to the cantilever wall. The waterproof and heat-insulating board is fixed to the outer side of the web of the bracket. The two flange plates of the bracket and the other side plate of the connecting piece are provided with bolt holes corresponding to each other in position, so that the two flange plates of the bracket can be bolted to the connecting piece.

[0015] Further, a sealing strip is also provided in the gap between the waterproof and heat-insulating board and the side wall of the installation opening.

[0016] Further, a filling layer is also provided in the vertical gap between the installation opening, the cantilever wall and the building exterior wall. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the viscous damper installed in the installation opening of the building exterior wall in an embodiment of the present utility model;

[0018] Figure 2 It is Figure 1 the A-A cross-sectional view of

[0019] Figure 3 Schematic diagram of the node structure at the installation opening of the viscous damper on the building exterior wall according to an embodiment of the present utility model;

[0020] Figure 4 Schematic diagram of the structure of the waterproof and heat-insulating board according to an embodiment of the present utility model;

[0021] Figure 5 Schematic diagram of the waterproof and heat-insulating board fixed to the bracket according to an embodiment of the present utility model.

[0022] The reference numerals in the figure are as follows:

[0023] Beam 1; Column 2; Building exterior wall 3; Filling layer 4; Upper cantilever wall 5; Lower cantilever wall 6; Viscous damper 7; Substrate layer 11; Waterproof layer 12; Heat-insulating layer 14; Bracket 15; Connecting piece 20. Detailed implementation manners

[0024] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present utility model. For the convenience of description, the "upper" and "lower" described hereinafter are in the same direction as the upper and lower directions of the accompanying drawings, but this cannot be a limitation to the technical solution of the present utility model.

[0025] Taking the construction of the building exterior wall 3 of a certain building structure as an example in this embodiment, the viscous damper 7 is arranged in the installation opening reserved on the building exterior wall 3. The size of the installation opening is: length 2000 mm, width 200 mm, height 360 mm. The two ends of the viscous damper 7 are respectively connected to the upper cantilever wall 5 and the lower cantilever wall 6 located at the top and bottom of the installation opening. The following combines Figures 1 to 5 To illustrate the node structure at the installation opening of the viscous damper on the building exterior wall of the present utility model, including:

[0026] A waterproof and heat-insulating board, including a substrate layer 11, waterproof layers 12 sprayed on both sides of the substrate layer 11, and a heat-insulating layer 14 arranged on one side of the substrate layer 11. The waterproof and heat-insulating board is adapted to the size of the installation opening of the viscous damper 7 on the building exterior wall 3, so that the waterproof and heat-insulating board can be embedded and sealed in the installation opening;

[0027] A supporting device, including a bracket 15 and a connecting piece 20. The waterproof and heat-insulating board is fixed to one side of the bracket 15. A plurality of connecting pieces 20 are arranged close to the installation opening and fix the cantilever walls on both sides thereof. The connection between the bracket 15 and the plurality of connecting pieces 20 is a detachable connection.

[0028] The node structure at the installation opening of the viscous damper on the building exterior wall of the present utility model includes a waterproof and thermal insulation board and a support device. The waterproof and thermal insulation board includes a base plate layer 11, a waterproof layer 12 sprayed on both sides of the base plate layer 11, and a thermal insulation layer 14 provided on one side of the base plate layer 11. The waterproof and thermal insulation board is fixed to one side of the bracket 15 of the support device. A plurality of connectors 20 are arranged near the installation opening and fix the cantilever walls on both sides thereof. The bracket 15 and the plurality of connectors 20 are detachably connected. Since the connectors 20 are provided at the positions of the upper and lower cantilever walls 6 close to the installation opening, and the bracket 15 connected with the waterproof and thermal insulation board is detachably connected to the connectors 20, the waterproof and thermal insulation board can be embedded and sealed in the installation opening, improving the reliability and integrity of the connection between the waterproof and thermal insulation board and the building exterior wall 3, ensuring the construction quality at the connection node between the waterproof and thermal insulation board and the building exterior wall 3, effectively solving the quality problems and potential safety hazards after construction, and having strong application and promotion value. Moreover, the materials used in the node structure are convenient to process and easy to install and construct, reducing the construction cost. This node structure is particularly suitable for public buildings with a relatively high seismic design level in cold regions.

[0029] As Figure 4 shown, the base plate layer 11 is made of fiber-reinforced silicate board. The main raw materials of the fiber-reinforced silicate board are cement, plant fiber, and minerals, and it is formed by the slurry casting method under high temperature and autoclaving. The fiber-reinforced silicate board is light in self-weight, and is embedded and sealed in the installation opening by the dry hanging construction process. The construction is simple, and the installation, disassembly, and maintenance are all convenient and fast. It generates a small load on the main structure of the building, can be installed in place at one time, and does not affect the construction of the inner and outer walls, reducing the construction process, saving the production and installation time, improving the construction efficiency, and being beneficial to reducing the waste of energy and resources.

[0030] The waterproof layer 12 is made of polyurethane material sprayed on both sides of the base plate layer 11. The polyurethane material has excellent water resistance and fire resistance, and the thickness of the waterproof layer 12 is 1.5 mm.

[0031] The thermal insulation layer 14 is made of inorganic thermal insulation fiber material sprayed on one side of the base plate layer 11 and covering one side of the waterproof layer 12, and the thickness of the thermal insulation layer 14 is 25 mm.

[0032] As Figure 5 shown, the bracket 15 is U-shaped, and the connector 20 is L-shaped. In this embodiment, the connector 20 is made of 4-mm-thick galvanized angle steel. One side plate of the connector 20 is bolted to the cantilever wall; the bracket 15 is made of I-beam. The waterproof and thermal insulation board is fixed to the outer side of the web of the bracket 15. The two flange plates of the bracket 15 and the other side plate of the connector 20 are provided with bolt holes corresponding to each other, so that the two flange plates of the bracket 15 can be bolted to the connector 20.

[0033] Since there is a rigid connection between the waterproof and thermal insulation board and the building exterior wall 3, traction force and certain tensile stress will be generated due to the late settlement and natural shrinkage of the building structure. A sealing strip (not shown in the figure) is also provided in the gap between the waterproof and thermal insulation board and the side wall of the installation opening. The sealing strip provided between the waterproof and thermal insulation board and the side wall of the installation opening can solve the quality problems and potential safety hazards at the junction of the two.

[0034] As Figure 1 and Figure 2 shown, a filling layer 4 is also provided in the vertical gap between the installation opening, the cantilever wall and the building exterior wall 3 for shock absorption. The filling material can be a lightweight wall, a partition board, a masonry wall, etc.

[0035] The technological process of the node structure at the installation opening of the viscous damper 7 on the building exterior wall 3 is as follows: construction preparation → measurement and setting out → installation of the connecting piece 20 → installation of the support device → installation of the waterproof and thermal insulation board → injection of sealant → plastering of wire mesh mortar → construction of the thermal insulation layer 14 → exterior finish decoration.

[0036] The construction process of the node structure at the installation opening of the viscous damper on the building exterior wall in this embodiment is specifically as follows:

[0037] First, clean and remove the raised sundries on the surface of the base layer of the building exterior wall 3, and remove the dust on the surface of the base layer;

[0038] As Figure 4 shown, both sides of the fiber-reinforced silicate board are coated with a polyurethane material to form a waterproof layer 12 with a thickness of 1.5 mm on both sides. A 25-mm-thick inorganic thermal insulation fiber is sprayed on one side of the fiber-reinforced silicate board to form a thermal insulation layer 14, and the thermal insulation layer 14 covers one side of the waterproof layer 12;

[0039] As Figure 5 shown, before installing the bracket 15, determine the pitch of 4 threaded holes at the web for installing the waterproof and thermal insulation board. The distance between the two threaded holes at the end and the adjacent flange plate is 50 mm, and the distance between the two threaded holes in the middle is 500 mm;

[0040] Mark the punching points of the installation holes of the connecting piece 20 on the cantilever wall surface, then drill holes with a 12-mm electric hammer drill bit, and drive stainless steel expansion bolts with a diameter of 10 mm and a length of 100 mm into the installation holes, and bolt-connect multiple connecting pieces 20 to the cantilever wall;

[0041] Fix the waterproof and thermal insulation board to the bracket 15 with 4 25-mm self-drilling screws, and connect and fix the bracket 15 and the connecting piece 20 with 5-mm self-drilling screws. After the waterproof and thermal insulation board is installed in place, the gap between its perimeter and the side wall of the installation opening is sealed with sealant.

[0042] The above description is only a description of the preferred embodiments of the present utility model, and does not limit the scope of the present utility model in any way. Any changes and modifications made by those of ordinary skill in the art of the present utility model based on the above disclosure shall fall within the scope of the claims.

Claims

1. A node structure at a viscous damper installation opening of a building exterior wall, characterized in that: include: The waterproof thermal insulation board comprises a substrate layer, a waterproof layer sprayed on both sides of the substrate layer, and a thermal insulation layer arranged on one side of the substrate layer. The waterproof thermal insulation board is adapted to the size of the installation hole of the viscous damper on the exterior wall of the building, so that the waterproof thermal insulation board can be embedded and sealed in the installation hole; The supporting device comprises a bracket and a connecting piece. The waterproof insulation board is fixed on one side of the bracket. A plurality of connecting pieces are arranged near the installation hole and fixed on the cantilever walls on both sides thereof. The bracket and the plurality of connecting pieces are detachably connected.

2. The node structure at the installation opening of the viscous damper of the building exterior wall according to claim 1 is characterized in that: The substrate layer is made of a fiber-reinforced silicate board.

3. The node structure at the installation opening of the viscous damper of the building exterior wall according to claim 1, characterized in that: The waterproof layer is made of polyurethane material sprayed on both sides of the substrate layer.

4. The node structure at the installation opening of the viscous damper of the building exterior wall according to claim 1 is characterized in that: The heat-insulating layer is made of an inorganic heat-insulating fiber material which is sprayed on one side of the substrate layer and covers one side of the waterproof layer.

5. The node structure at the installation opening of the viscous damper of the building exterior wall according to claim 1, characterized in that: The bracket is U-shaped, the connecting piece is L-shaped, one side plate of the connecting piece is bolted to the cantilever wall, the waterproof insulation board is fixed to the outer side of the web of the bracket, and the two flange plates of the bracket and the other side plate of the connecting piece are provided with bolt holes in corresponding positions, so that the two flange plates of the bracket can be bolted to the connecting piece.

6. The node structure at the installation opening of the viscous damper of the building exterior wall according to claim 1, characterized in that: A sealing strip is also provided in the gap between the waterproof insulation board and the side wall of the installation hole.

7. The node structure at the viscous damper installation opening of the building exterior wall according to claim 1, characterized in that: A filling layer is also provided in the vertical gap between the installation hole, the cantilever wall and the building exterior wall.

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