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Installation and underpinning method of brick-concrete structured isolation bearings

A technology of seismic isolation bearings and brick-concrete structures, which is applied in the direction of earthquake resistance, building components, and building structures, can solve the problems affecting the application of seismic isolation technology, the insertion of seismic isolation bearings and the complexity of underpinning technology, and achieve saving Construction equipment and underpinning components, reducing project cost and ensuring continuity

Active Publication Date: 2014-07-30
贵州建工安顺建筑工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the reinforcement and reconstruction of existing buildings, it is rare to adopt basic seismic isolation technology for brick-concrete structures. application, affecting the application of seismic isolation technology in masonry-concrete structures

Method used

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  • Installation and underpinning method of brick-concrete structured isolation bearings
  • Installation and underpinning method of brick-concrete structured isolation bearings
  • Installation and underpinning method of brick-concrete structured isolation bearings

Examples

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Effect test

Embodiment 1

[0029] Such as Figure 1-2 As shown, a method for installing underpinning of a brick-concrete structure isolation bearing when there is a ground ring beam of the present invention comprises the following steps:

[0030] Step 1: According to the design drawings of the underpinning isolation bearing and the force of the upper structure, calculate and count the specifications and quantities of the prefabricated reinforced concrete pin beams 2 and 7 penetrating into the brick wall, and prefabricate them; prefabricated reinforced concrete The pin beams 2 and 7 are rectangular in cross section, and the rectangular prefabricated reinforced concrete pin beams 2 and 7 are arranged under the geosphere beam; wherein, the width of the rectangular prefabricated reinforced concrete pin beams 2 and 7 is 250 mm, and the length is the thickness of the brick wall + 120 mm. It protrudes 60mm from the wall on each side.

[0031] Step 2: Excavate the foundation of the brick-concrete structure and...

Embodiment 2

[0041] Such as Figure 3-4 As shown, another installation underpinning method of the brick-concrete structure seismic isolation bearing when there is no ground ring beam in the present invention. Among them, the cross sections of the prefabricated reinforced concrete pin beams 2 and 7 are circular, and the circular prefabricated reinforced concrete pin beams 2 and 7 are steel pipe concrete members with a diameter of 200 mm, which are directly installed on the brick wall 11 . 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 and underpinning method of brick-concrete structured isolation bearings, which belongs to the field of seismic strengthening and sequentially includes the steps: strengthening a foundation; installing an upper row and a lower row of precast reinforced concrete pin beams; constructing an upper shoulder beam and a lower shoulder beam; drilling holes; constructing lower closing plates; installing the isolation bearings; constructing upper closing plates; and removing a brick wall between the upper shoulder beam and the lower shoulder beam, thereby achieving seismic strengthening of a brick-concrete structure. By the method, structural safety in underpinning is guaranteed, the construction progress is simplified and quickened, construction equipment and underpinning components are reduced, and construction cost is reduced. The installation and underpinning method is a practical brick-concrete structured isolation constructional technique, and has a wide broad prospect in application of seismic strengthening to brick-concrete structural engineering.

Description

technical field [0001] The invention relates to a strengthening and reconstruction method, in particular to a method for installing and underpinning a shock-isolation support of a brick-concrete structure, and belongs to the field of seismic strengthening. Background technique [0002] The base isolation of brick-concrete structure refers to the installation of an isolation cushion between the superstructure and the foundation, using the isolation layer to isolate and dissipate the seismic energy, avoiding and reducing the transmission of seismic energy to the upper structure, so as to reduce the vibration of the upper structure A passive control technology, which has good safety and low cost, and is currently widely used in new buildings. It is a relatively mature structural earthquake control technology. However, in the reinforcement and renovation of existing buildings, it is rare to use basic seismic isolation technology for brick-concrete structures. The application a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04G23/02E04B1/36E04B1/98
Inventor 董有赵恩平龚瑞荣鞠树森杨涛
Owner 贵州建工安顺建筑工程有限公司
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