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Girder-falling prevention device

A technology of anti-falling beams and fixing devices, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of potential safety hazards, lack of vertical pull-out resistance, etc., to protect bridges, ensure the safety of life and property, and dissipate The effect of seismic energy

Active Publication Date: 2012-05-09
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the bridges currently do not have the function of vertical pull-out resistance, and there are certain safety hazards

Method used

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  • Girder-falling prevention device
  • Girder-falling prevention device
  • Girder-falling prevention device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0027] figure 1 and figure 2 The anti-falling beam device of an embodiment of the present invention is shown in , including: a fixed guide rail 1 connected with the beam body, a fixed plate 3 connected with the bridge pier, and an elastic joint with the fixed guide rail 1 and connected with the fixed plate 3 Part 2. Preferably, the elastic part can be double-arc elastic-plastic steel 2, or other elastic-plastic materials with good strength and good plasticity can also be selected.

[0028] Such as image 3 , 4 , 5, these three figures show three components of the anti-fall beam device in an embodiment of the present invention in a separated state. image 3 In the fixed guide rail 1 part shown in , the upper end is the upper anchorage steel rod...

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PUM

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Abstract

The invention provides a girder-falling prevention device. The device is arranged on a bridge girder base body and comprises a fixed guide rail, a fixed device and an elastic-plastic device, wherein the fixed guide rail is connected with a bridge girder body; the fixed device is connected with the base body; and the elastic-plastic device comprises a first end in clearance fit with the fixed guide rail and a second end connected with the fixed device. The device has the following advantages that: the device has a simple and reliable structure, is clear in force transferring and bearing and can achieve the effects of preventing girder from falling, dissipating seismic energy and resisting drawing, thus protecting the bridge girder in multiple directions, reducing seismic damage on the bridge girder and guaranteeing life and property safety.

Description

technical field [0001] The invention relates to the field of bridge safety, in particular to an anti-falling beam device with the functions of damping energy consumption and vertical pull-out resistance. Background technique [0002] Bridge falling beam failure is one of the main failure forms of bridge structures under horizontal impact loads such as earthquakes. It is extremely harmful and often leads to interruption of traffic lifelines, resulting in joint losses of life and property. The Niigata earthquake in Japan in 1968, the Northrige earthquake in the United States in 1994, the Kobe earthquake in Japan in 1995, the Taiwan earthquake in 1999, and the Wenchuan earthquake in my country in 2008 were all caused by the collapse of bridges. Liang's situation has caused serious damage to the local transportation network, resulting in huge losses of life and property, and seriously hindered the outside world from entering the disaster area in time for rescue and post-disaster ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/00
Inventor 陈彦北李鹏郝红肖姜其斌
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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