Series decentralized deflection expansion joint

A tandem expansion joint technology, applied to bridge parts, bridges, buildings, etc., can solve the problems of single function reduction, complex structure, component fatigue, etc., to achieve improved safety and durability, simplified structure, maintenance and good replacement condition

Inactive Publication Date: 2017-11-07
ANHUI TRANSPORT CONSULTING & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the commonly used expansion joints are often dedicated to realizing multiple functions such as spanning, expansion, vertical rotation, plane rotation, and plane swing at the same time in an overall structure. Under this traditional thinking, the functions of expansion joints are mutually restricted. , the single function is greatly reduced, the structure is very complex, and the components are fatigued and worn seriously

Method used

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  • Series decentralized deflection expansion joint
  • Series decentralized deflection expansion joint
  • Series decentralized deflection expansion joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The series distributed displacement expansion joint 1 includes a cross-joint component, a displacement component and a sliding component. The displacement component is supported on the sliding component. A shallow structure connected in series after stretching and decomposing.

[0029] The seam-spanning assembly includes the seam-spanning plate 2, the fixed support side beam 3, the elastic support 8 and the compression bolt 9, and the displacement assembly includes the movable side beam 4, the movable middle beam 5, the guide rail hole 19, the fixed side beam 6 and the rubber seal The belt 7 and the sliding assembly include a control spring 10 , a guide rail 11 , a fixing bolt 12 , a slide plate 13 and an elastic pad 14 .

[0030] Both the fixed support side beam 3 and the movable side beam 4 are provided with an elastic support 8, one end of the span plate 2 is pre-pressed on the elastic support 8 on the fixed support side beam 3 with a compression bolt 9, and the othe...

Embodiment 2

[0034] In this embodiment, the seam-spanning board 2 is a square seam-spanning board, and other structures are the same as those in Embodiment 1.

[0035] During installation, the first step: positioning and bolting or welding to fix the supporting side beam 3, fixing the side beam 6 on the top surface of the beam body 15, positioning and setting the elastic cushion 14, the slide plate 13, the guide rail 11 and pressing the bolt with the fixing bolt 12 Connect; the second step: sequentially fit the movable center beam 5 and the movable side beam 4 to the holes; the third step: install the control spring 10 between the guide rail and the displacement assembly; the fourth step: sequentially fit the elastic support 8, span Seam the plate 2 and pre-press the connection with the compression bolt 9; the fifth step: install the rubber sealing belt 7.

[0036] Before installation, the necessary drainage facilities shall be constructed under the tandem distributed displacement expansio...

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PUM

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Abstract

The invention relates to the field of expansion devices for bridge girders and provides a series decentralized deflection expansion joint. The series decentralized deflection expansion joint comprises a joint striding component, a deflection component and a slide component. The deflection component is supported on the slide component, and one end of the joint striding component is fixed while the other end of the joint striding component is connected with the deflection component to form a shallow structure which realizes series connection of joint striding and expansion after decomposition. An expansion joint striding function and an expansion function are decomposed for the first time, operating mode clearness is realized, the expansion joint is less affected by beam end vertical rotation, exertion reliability of the expansion function is realized, and structural safety and durability are improved. Structural shallowing, modularizing and assembly techniques are improved, and installation, detection, maintenance and replacement conditions are better.

Description

technical field [0001] The invention relates to the field of expansion devices for bridge girders, in particular to a series-type dispersed displacement expansion joint. Background technique [0002] Expansion joints are one of the key structures on bridge girders. The main types are rubber expansion joints, steel expansion joints, modular steel expansion joints, comb-shaped expansion joints, seamless expansion joints, etc. [0003] Due to the various types of bridge structures and the complex deformation state of the main girder, there are many types of expansion joints with their own characteristics in the history of their development. So far, how to choose an expansion joint with suitable functions has often become a difficult problem. [0004] At present, the commonly used expansion joints are often dedicated to realizing multiple functions such as spanning, expansion, vertical rotation, plane rotation, and plane swing at the same time in an overall structure. Under thi...

Claims

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Application Information

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IPC IPC(8): E01D19/06
CPCE01D19/062
Inventor 胡可陈亮王胜斌吴平平梅应华梁长海夏伟
Owner ANHUI TRANSPORT CONSULTING & DESIGN INST
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