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Installation underpinning method for existing framed building reinforced by parallel seismic isolation supports

A seismic isolation bearing and frame building technology, which is applied in construction, building maintenance, building components, etc., can solve the problems of adding structural load conversion components in construction steps, construction complexity and unsafe factors, and save construction equipment and support. The effect of replacing components, reducing project cost and improving seismic capacity

Active Publication Date: 2012-07-18
HENGSHUI JIJUN ENG RUBBER FOR GATE OR BRIDGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology allows for better designing and installation of sealant bearings that are designed with multiple support points instead of just one. By combining these supports together they provide greater resistance against laterally applied forces without adding too much weight or making it difficult to move around on top. These bearings have improved performance compared to traditional isolated bearings used alone but still work well even at high loads due to their ability to restore balance when no external load is being exerted upon them during an earthquake event. Overall this new type of material helps improve damage prevention capabilities while maintaining its effectiveness over time.

Problems solved by technology

The present problem addressed during underground building constructions involves ensuring proper ground isolations while minimizing risks associated with traditional techniques such as pile anchoring systems. These issues include complex construction process due to multiple parts involved including the placements of temporary supports and the difficulty of achieving accurate alignment when replacing damaged elements without compromising safe performance standards.

Method used

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  • Installation underpinning method for existing framed building reinforced by parallel seismic isolation supports
  • Installation underpinning method for existing framed building reinforced by parallel seismic isolation supports
  • Installation underpinning method for existing framed building reinforced by parallel seismic isolation supports

Examples

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Embodiment 1

[0039] like Figure 1-3 As shown, a kind of existing frame building of the present invention adopts the installation underpinning method of parallel seismic isolation bearing reinforcement, comprises the following steps:

[0040] Step 1: Carry out base isolation and parallel isolation reinforcement design based on the existing frame building, and base on the plan layout of the isolation support, the combination form of the isolation support, the type of isolation support, and the isolation support design. Seat size and parameter combination verification seismic isolation support 2;

[0041] Step 2: Reinforce the foundation 1 of the existing frame building and the column 10 between the foundation 1 and the bottom beam 6 of the upper frame, and construct the upper and lower corbels 4, 3 of the shock-isolation support 2 around the column 10 according to the drawing design , wherein, two seismic isolation bearings 2 are set at the same horizontal position between the upper and lowe...

Embodiment 2

[0048] like Figure 4 As shown, an existing frame building of the present invention adopts an installation underpinning method reinforced by parallel seismic isolation bearings, wherein three seismic isolation bearings are arranged at the same horizontal position between the upper and lower corbels 4 and 3 of each column 10 2. It includes two rubber bearings and a frictional sliding bearing. These shock-isolation bearings 2 are connected in parallel and arranged in a "T" shape along the direction of the bottom beam 6 of the frame. Other steps are the same as in Example 1, and will not be described in detail here.

Embodiment 3

[0050] like Figure 5-6 As shown, an existing frame building of the present invention adopts an installation underpinning method reinforced by parallel seismic isolation bearings, in which 4 seismic isolation bearings are set at the same horizontal position between the upper and lower corbels 4 and 3 of each column 10 2. It includes two rubber bearings and two frictional sliding bearings. These seismic isolation bearings 2 are connected in parallel and arranged in a "+" shape along the direction of the bottom beam 6 of the frame. Other steps are the same as in Example 1, and will not be described in detail here.

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Abstract

The invention relates to an installation underpinning method for an existing framed building reinforced by parallel seismic isolation supports, which belongs to the field of seismic isolation reinforcement. The installation underpinning method includes manufacturing upper brackets and lower brackets between a foundation and a sill of a multilayer frame structure and installing the seismic isolation supports; cutting off reinforced concrete columns among the seismic isolation supports after the concrete strength of the brackets reaches a designed value; safely transferring load on the structure columns onto the seismic isolation supports; and accordingly achieving the designed purpose of seismic isolation of the existing framed building. By the aid of the method, structural safety of underpinning construction is guaranteed, engineering progress is simplified and accelerated, construction devices and underpinning components are saved, accordingly, engineering manufacturing cost is lowered, and the installation underpinning method is extremely practical framed foundation seismic isolation construction technique.

Description

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Claims

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Application Information

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Owner HENGSHUI JIJUN ENG RUBBER FOR GATE OR BRIDGE
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