Mounting device for friction pendulum support of building shock insulation layer

Abstract

The utility model relates to a friction pendulum support mounting device for a building shock insulation layer. The friction pendulum support mounting device comprises a lower buttress steel bar, an embedded plate assembly and a leveling bolt assembly, the pre-embedded plate assembly comprises a pre-embedded steel plate arranged above the lower buttress steel bar, a plurality of bolt sleeve assemblies are distributed at the bottom of the pre-embedded steel plate, the lower portions of the bolt sleeve assemblies are located in the lower buttress steel bar, and a pre-embedded plate reserved opening penetrates through the middle of the pre-embedded steel plate; four leveling bolt assemblies are evenly distributed on the periphery of the bottom of the embedded steel plate, each leveling bolt assembly comprises a leveling screw and a leveling nut, the leveling nuts are screwed on the leveling screws in a threaded mode, the leveling nuts are welded to one of the horizontal reinforcing steel bars of the lower buttress reinforcing steel bars, and the tops of the leveling screws make contact with the bottom of the embedded steel plate. According to the utility model, the elevation and levelness of the embedded steel plate can be adjusted by screwing the leveling screw rod, and the mounting quality of the friction pendulum assembly can be effectively ensured, so that the working performance of the friction pendulum support and the shock isolation effect of the shock isolation layer are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a friction pendulum support installation device for a building seismic isolation layer. Background Art

[0002] The seismic isolation system of building structures consists of three parts: the superstructure, the seismic isolation layer and the substructure. In order to achieve the expected seismic isolation effect, seismic isolation bearings can be reasonably configured in the seismic isolation layer. The building friction pendulum bearing is a bearing that achieves seismic isolation by extending the structural vibration period through spherical swing and consuming seismic energy through sliding surface friction. The friction pendulum bearing has the characteristics of high installation precision requirements, complicated processes and high construction difficulty. During the installation of the friction pendulum bearing, its installation adjustability is poor and a more accurate installation effect cannot be guaranteed. Utility Model Content

[0003] The utility model aims to solve the deficiencies of the prior art and provides a friction pendulum support installation device for a building seismic isolation layer.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] A friction pendulum bearing installation device for a building seismic isolation layer, comprising a lower pier steel bar, an embedded plate assembly and a leveling bolt assembly;

[0006] The steel bars of the lower pier are tied at the concrete pouring place of the lower pier between the foundation concrete on both sides;

[0007] The embedded plate assembly includes an embedded steel plate, which is arranged above the steel bars of the lower pier, and a plurality of bolt sleeve assemblies are arranged at the bottom of the embedded steel plate, the lower part of the bolt sleeve assembly is located in the steel bars of the lower pier, and an embedded plate reserved opening is penetrated in the middle of the embedded steel plate;

[0008] Four leveling bolt assemblies are evenly distributed around the bottom of the embedded steel plate. Each leveling bolt assembly includes a leveling screw and a leveling nut. The leveling nut is threaded onto the leveling screw. The leveling nut is welded to one of the horizontal steel bars of the lower pier steel bars. The top of the leveling screw is in contact with the bottom of the embedded steel plate.

[0009] Vertical supporting steel bars are welded to the horizontal steel bars of the lower pier steel bars welded to the leveling nuts on both sides of each leveling bolt assembly, and the bottoms of the vertical supporting steel bars are welded to the other two horizontal steel bars of the lower pier steel bars.

[0010] The bolt sleeve assembly comprises a sleeve and a connecting bolt. The sleeve is arranged at the bottom of the embedded steel plate. The connecting bolt is threadedly connected in the sleeve and the top of the connecting bolt passes through the embedded steel plate and is fixed by a nut.

[0011] The lower pier concrete is poured outside the lower pier steel bars, and the top elevation of the lower pier concrete is flush with the upper surface of the embedded steel plate.

[0012] The beneficial effect of the utility model is that the utility model can adjust the elevation and horizontality of the embedded steel plate by twisting the leveling screw, which can effectively ensure the installation quality of the friction pendulum assembly, thereby ensuring the working performance of the friction pendulum support and the seismic isolation effect of the seismic isolation layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of step S1 when the utility model is used;

[0015] Figure 3 It is a schematic diagram of step S2 when the utility model is used;

[0016] Figure 4 It is a schematic diagram of step S3 when the utility model is used;

[0017] Figure 5 It is a schematic diagram of step S4 when the utility model is used;

[0018] Figure 6 is a schematic diagram of step S5 when the utility model is used;

[0019] Figure 7 is a schematic diagram of step S6 when the utility model is used;

[0020] In the figure:

[0021] 1-lower concrete; 11-foundation concrete; 12-lower pier concrete;

[0022] 2- Lower pier reinforcement;

[0023] 3-embedded plate assembly; 31-embedded steel plate; 32-bolt sleeve assembly; 321-sleeve; 322-connecting bolt; 33-embedded plate reserved opening;

[0024] 4-leveling bolt assembly; 41-leveling screw; 42-leveling nut; 43-vertical support steel bar;

[0025] 5- Friction pendulum assembly;

[0026] 6-upper pier formwork assembly; 61-upper pier formwork vertical support; 62-upper pier bottom formwork; 63-upper pier side formwork;

[0027] 7- Upper pier reinforcement;

[0028] 8-Upper pier concrete;

[0029] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0031] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0034] A friction pendulum bearing installation device for a building seismic isolation layer, such as Figure 1 As shown, it includes lower pier reinforcement 2, embedded plate assembly 3 and leveling bolt assembly 4.

[0035] The lower pier steel bars 2 are tied to the lower pier concrete 12 pouring place between the foundation concrete 11 on both sides;

[0036] The embedded plate assembly 3 includes an embedded steel plate 31, which is arranged above the lower pier steel bar 2. A plurality of bolt sleeve assemblies 32 are arranged at the bottom of the embedded steel plate 31. The lower part of the bolt sleeve assembly 32 is located in the lower pier steel bar 2. An embedded plate reserved opening 33 is penetrated in the middle of the embedded steel plate 31.

[0037] There are four leveling bolt assemblies 4 evenly distributed around the bottom of the embedded steel plate 31, each leveling bolt assembly 4 includes a leveling screw 41 and a leveling nut 42, the leveling nut 42 is threadedly screwed on the leveling screw 41, the leveling nut 42 is welded to one of the horizontal steel bars of the lower pier steel bars 2, and the top of the leveling screw 41 is in contact with the bottom of the embedded steel plate 31.

[0038] Vertical support steel bars 43 are welded on both sides of each leveling bolt assembly 4 on the horizontal steel bars of the lower pier steel bars 2 welded with the leveling nuts 42 , and the bottoms of the vertical support steel bars 43 are welded to the other two horizontal steel bars of the lower pier steel bars 2 .

[0039] The bolt sleeve assembly 32 includes a sleeve 321 and a connecting bolt 322 . The sleeve 321 is arranged at the bottom of the embedded steel plate 31 . The connecting bolt 322 is threadedly connected in the sleeve 321 . The top of the connecting bolt 322 passes through the embedded steel plate 31 and is fixed by a nut 323 .

[0040] The lower pier concrete 12 is poured outside the lower pier reinforcement 2 , and the top elevation of the lower pier concrete 12 is flush with the upper surface of the embedded steel plate 31 .

[0041] The specific steps of installing the friction pendulum assembly using the device of the utility model are as follows:

[0042] S1. Laying out wires, tying steel bars, and pouring foundation concrete 11:

[0043] like Figure 2 As shown, according to the pier size and the relationship with the axis in the isolation layer pier layout diagram, the positioning and laying out are carried out, the accurate position of each pier is determined, and according to the requirements of the construction drawing, the foundation steel bars and the lower pier steel bars 2 are tied; the lower concrete 1 is poured separately, and the foundation concrete 11 is poured first. In order to ensure that the lower pier concrete 12 poured later can be well combined with the foundation concrete 11, the contact parts of the foundation concrete 11 and the lower pier concrete 12 are roughened and cleaned.

[0044] S2. Install the leveling bolt assembly 4 and the embedded plate assembly 3 of the lower pier:

[0045] like Figure 3 As shown, before the leveling bolt assembly 4 is installed, the position of the leveling bolt assembly 4 is predetermined. In the horizontal direction, the leveling bolt assembly 4 is evenly arranged around the lower part of the embedded steel plate 31. During installation, the leveling screw 41 and the leveling nut 42 are assembled together, and then the leveling nut 42 is welded to the horizontal steel bar of the lower pier steel bar 2 at the predetermined position. During welding and installation, the central axis of the leveling screw 41 is ensured to be in the vertical direction, and the vertical supporting steel bar 43 is welded to the horizontal steel bar. After the welding and installation is completed, the leveling nut 42 is fixed to the horizontal steel bar of the lower pier steel bar 2, and the height of the top end thereof is adjusted by twisting the leveling screw 41.

[0046] Before installing the embedded plate assembly 3, the position of the embedded plate assembly 3 of the lower pier is determined in advance, and the bolt sleeve assembly 32 is inserted into the steel cage of the steel bar 2 of the lower pier. The embedded steel plate 31 is horizontally placed above the steel bar 2 of the lower pier, and the bottom of the embedded steel plate 31 is in contact with the top of the leveling screw 41. The operator operates through the embedded plate reserved opening 33 and screws the leveling screw 41 to adjust the elevation and levelness of the embedded steel plate 31. During the adjustment of the elevation and levelness, the diagonal levelness of the embedded steel plate 31 is constantly checked with a level ruler to ensure that the final installation accuracy meets the requirements;

[0047] The lower pier steel bars 2 are usually densely packed, and the vertical steel bars of the lower pier steel bars 2 are bent and anchored at 90° at the column head. The embedded plate assembly 3 is anchored to the lower pier concrete 12 through the bolt sleeve assembly 32. The lower pier steel bars 2 and the bolt sleeve assembly 32 may block and collide with each other. Therefore, before installing the embedded plate assembly 3, it is necessary to first determine the position of the bolt sleeve assembly 32, and by rotating the direction of the lower pier steel bars 2, avoid blocking the bolt sleeve assembly 32;

[0048] The embedded steel plate 31 and the bolt sleeve assembly 32 are assembled into a whole by connecting the bolts 322, the sleeve 321 is close to the embedded steel plate 31, and the connecting bolts 322 are all screwed into the sleeve 321;

[0049] After checking the position, elevation and horizontality of the embedded plate assembly 3, the bolt sleeve assembly 32 is spot welded to the vertical steel bars of the lower pier steel bar 2. If the adjacent vertical steel bars are far apart, short steel bars can be used to connect to the main bars for welding.

[0050] S3, pouring lower pier concrete 12:

[0051] like Figure 4 As shown, exhaust measures are provided during the pouring of the lower pier concrete 12. The lower pier concrete 12 is poured twice. The first pouring is to 30-50 mm below the bottom of the embedded steel plate 31, and the second pouring is to the top elevation of the lower pier concrete 12 to be consistent with the upper surface elevation of the embedded steel plate 31.

[0052] The poured concrete uses high-fluidity and low-shrinkage concrete, micro-expansion or non-shrinkage high-strength mortar, and the poured concrete strength grade is one level higher than the design strength grade;

[0053] When vibrating the concrete, the impact on the embedded steel plate 31 of the lower pier should be minimized to avoid the pump pipe from having a large impact on the positioned embedded steel plate 31.

[0054] S4. Install the friction pendulum assembly 5:

[0055] like Figure 5As shown, after the concrete pouring is completed and the strength of the concrete 12 of the lower pier is not less than 75% of the design strength, the upper surface of the embedded steel plate 31 is cleaned, and the friction pendulum assembly 5 is hoisted by hoisting equipment. After the seismic isolation bearing is in place, the elevation and plane position of the friction pendulum assembly 5 are remeasured with a total station or a level, and then the embedded plate assembly 3 of the upper pier is installed. The embedded steel plate 31 of the embedded plate assembly 3 of the upper pier is set on the top of the friction pendulum assembly 5, and the connecting bolts 322 assemble the embedded steel plate 31 and the bolt sleeve assembly 32 into a whole. It should be ensured that the bottom of the sleeve 321 is close to the top of the embedded steel plate 31, and the connecting bolts 322 are all screwed into the sleeve 321. The number of bolt sleeve assemblies 32 and the position on the horizontal plane are the same as those of the embedded plate assembly 3 of the lower pier.

[0056] S5. Install the upper pier formwork assembly 6 and tie the upper pier reinforcement 7:

[0057] like Figure 6 As shown, the upper pier formwork assembly 6 includes an upper pier formwork vertical support 61, an upper pier bottom formwork 62 and an upper pier side formwork 63;

[0058] First, install the upper pier formwork vertical support 61 and the upper pier bottom formwork 62 according to the drawings. The bottom of the upper pier formwork vertical support 61 is supported on the lower pier concrete 12, and the top of the upper pier formwork vertical support 61 is supported on the bottom of the upper pier bottom formwork 62. The elevation of the top of the upper pier bottom formwork 62 is consistent with the elevation of the lower surface of the embedded steel plate 31 of the upper pier. The upper pier bottom formwork 62 penetrates into the inner side of the embedded steel plate 31. Glue treatment is applied at the joint between the upper pier bottom formwork 62 and the embedded steel plate 31 to prevent leakage of slurry during concrete pouring due to loose template closure.

[0059] Tie up the upper pier reinforcement 7 according to the design drawings. After the tying is completed, re-measure the plane position, elevation and levelness of the embedded plate assembly 3 of the upper pier. If there is any movement, it should be corrected immediately. After the re-measurement and correction is completed, the bolt sleeve assembly 32 of the upper pier is welded and fixed to the upper pier reinforcement 7;

[0060] Install the upper buttress side form 63. If the upper buttress is high, set a caster on the outer side of the upper buttress side form 63.

[0061] S6. Pouring upper pier concrete 8:

[0062] like Figure 7 As shown, when vibrating the concrete, the impact on the embedded steel plate 31 of the upper pier should be minimized to avoid the pump pipe from having a large impact on the positioned embedded steel plate 31; after the upper pier concrete 8 is poured, the upper pier formwork assembly 6 is removed.

[0063] The utility model can adjust the elevation and levelness of the embedded steel plate 31 by twisting the leveling screw 41, which can effectively ensure the installation quality of the friction pendulum assembly 5, thereby ensuring the working performance of the friction pendulum support and the seismic isolation effect of the seismic isolation layer.

[0064] The utility model is easy to operate, and the elevation and horizontality of the embedded steel plate 31 can be easily adjusted through the leveling bolt assembly 4, thereby effectively reducing the construction difficulty.

[0065] The template adopted by the utility model is suitable for the installation of multiple piers of the same size in the same building, has turnover, can reduce the material input cost while ensuring the construction progress, and has good environmental protection performance.

[0066] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A friction pendulum bearing installation device for a building seismic isolation layer, characterized in that: It comprises a lower pier steel bar (2), an embedded plate assembly (3) and a leveling bolt assembly (4); The lower pier steel bars (2) are tied to the lower pier concrete (12) pouring location between the foundation concrete (11) on both sides; The embedded plate assembly (3) comprises an embedded steel plate (31), the embedded steel plate (31) is arranged above the lower pier steel bar (2), a plurality of bolt sleeve assemblies (32) are arranged at the bottom of the embedded steel plate (31), the lower part of the bolt sleeve assemblies (32) is located in the lower pier steel bar (2), and an embedded plate reserved opening (33) runs through the middle of the embedded steel plate (31); Four leveling bolt assemblies (4) are evenly distributed around the bottom of the embedded steel plate (31), each leveling bolt assembly (4) comprises a leveling screw rod (41) and a leveling nut (42), the leveling nut (42) is threadedly screwed onto the leveling screw rod (41), the leveling nut (42) is welded to one of the horizontal steel bars of the lower pier steel bar (2), and the top of the leveling screw rod (41) contacts the bottom of the embedded steel plate (31).

2. The installation device for a friction pendulum bearing of a building seismic isolation layer according to claim 1, characterized in that: Vertical support steel bars (43) are welded on both sides of each leveling bolt assembly (4) to the horizontal steel bars of the lower pier steel bars (2) welded to the leveling nuts (42), and the bottoms of the vertical support steel bars (43) are welded to the other two horizontal steel bars of the lower pier steel bars (2).

3. The installation device for friction pendulum bearing of building seismic isolation layer according to claim 2 is characterized in that: The bolt sleeve assembly (32) comprises a sleeve (321) and a connecting bolt (322), wherein the sleeve (321) is arranged at the bottom of the embedded steel plate (31), the connecting bolt (322) is threadedly connected in the sleeve (321), and the top of the connecting bolt (322) passes through the embedded steel plate (31) and is fixed by a nut (323).

4. The installation device for friction pendulum bearing of building seismic isolation layer according to claim 3 is characterized in that: The lower pier concrete (12) is poured outside the lower pier steel bars (2), and the top elevation of the lower pier concrete (12) is flush with the upper surface of the embedded steel plate (31).

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