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Bridge falling prevention device applied to buffering type steel strand stayed cable bridges and mounting method thereof

A cable-type, anti-drop beam technology, applied in bridges, bridge construction, bridge parts, etc., can solve the problems of cable stress concentration, energy-absorbing tube damage, and support plate scratching, etc., to achieve good buffering effect and convenient construction. , to avoid the effect of scratching

Pending Publication Date: 2018-08-28
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, this application provides a buffered steel strand cable-type anti-fall beam device for the problems of cable stress concentration, energy-absorbing pipeline damage, and support plate scratches in traditional energy-absorbing pipelines.

Method used

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  • Bridge falling prevention device applied to buffering type steel strand stayed cable bridges and mounting method thereof
  • Bridge falling prevention device applied to buffering type steel strand stayed cable bridges and mounting method thereof
  • Bridge falling prevention device applied to buffering type steel strand stayed cable bridges and mounting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A buffer type steel strand cable type anti-drop beam device, such as figure 2 As shown, it includes a connection part, the connection part includes a pressure bearing plate 11 and a cable 10, one end of the cable 10 is connected with an anchor 2, the pressure bearing plate 11 is provided with a reserved hole, and the pressure bearing plate One side of 11 is provided with a shock-absorbing tube 9, and the other end of the shock-absorbing tube 9 is connected with a wedge-shaped backing ring 6 by pressing, and the inside of the shock-absorbing tube 9 is filled with a foaming agent composition 7, and the drag cable 10 passes through The reserved hole on the pressure bearing plate 11 and the foaming agent composition 7 are set, and one end connected to the anchorage 2 extends out of the foaming agent composition 7; the wedge-shaped washer ring 6 is sleeved on the anchorage 2, and the A support plate 4, a spring 5 and a nut 3 are also sleeved, and the two ends of the spring ...

Embodiment 2

[0070] Wherein, the foaming agent composition 7 is a rubber foaming material, comprising the following components in parts by weight: 100 parts of sulfur-modified neoprene rubber, 50 parts of filler, 30 parts of reinforcing agent, 5 parts of softening agent, 2 parts of oxidizing agent, 3 parts of stearic acid, 2 parts of polyethylene, 3 parts of hydrazine diphenylsulfate, 5 parts of zinc oxide, 0.2 parts of ethylene thiourea, and 1.5 parts of sulfur.

[0071] The filler is calcium carbonate, the reinforcing agent is carbon black, the softener is paraffin oil, and the antioxidant is KY445.

[0072] All the other structures and installation steps are the same as in Embodiment 1.

Embodiment 3

[0074] Wherein, the foaming agent composition 7 is a rubber foaming material, comprising the following components in parts by weight: 100 parts of sulfur-modified neoprene rubber, 60 parts of filler, 20 parts of reinforcing agent, 10 parts of softening agent, 1 part of oxidizing agent, 5 parts of stearic acid, 1 part of polyethylene, 15 parts of hydrazine diphenylsulfate, 3 parts of zinc oxide, 0.5 part of ethylene thiourea, and 0.5 part of sulfur.

[0075] The filler is calcium carbonate, the reinforcing agent is carbon black, the softener is paraffin oil, and the antioxidant is KY445.

[0076] All the other structures and installation steps are the same as in Embodiment 1.

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Abstract

The invention discloses a bridge falling prevention device applied to buffering type steel strand stayed cable bridges and a mounting method thereof. The bridge falling prevention device comprises a pressure bearing plate and a stayed cable, wherein one end of the stayed cable is connected with an anchorage device; a reservation hole is formed in the pressure bearing plate; a shock absorption tubeis arranged on one side of the pressure bearing plate; the other end of the shock absorption tube is in press-in connection with a wedge-shaped backing ring; the inside of the shock absorption tube is filled with a foaming agent composition; the stayed cable passes through the reservation hole in the pressure bearing plate and the foaming agent composition; one end connected with the anchorage device extends out of the foaming agent composition; the wedge-shaped backing ring is sleeved on the anchorage device; the anchorage device is also sleeved with a support disc, springs and a nut; two ends of each spring are respectively attached to the wedge-shaped backing ring and the support disc; the nut is in pressed and attached to the support disc. Compared with the ordinary bridge falling prevention device, the bridge falling prevention device has more excellent buffering and shock absorbing capability and is capable of reducing mounting errors of the assembly; the axial stressing of thestayed cable is facilitated.

Description

technical field [0001] The application belongs to the technical field of bridge engineering, and in particular relates to a buffer type steel strand cable type bridge anti-drop girder device and installation method. Background technique [0002] Bridge engineering is an important part of lifeline engineering. When a strong earthquake occurs, the upper part of the bridge often falls off from the support, resulting in traffic interruption, difficulty in rescue activities, and huge losses to people's lives and property. The city will affect the operation and function of the entire city's production, resulting in huge losses. Therefore, in addition to considering the necessary seismic calculations when designing bridges, it is very necessary to install relevant protective devices on the bridges. The anti-fall beam device is a safety measure commonly used in bridge design at present. The types of drop beam devices mainly include steel strand cable type, anchor bolt type, block t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/14E01D21/00C08L11/00C08L23/06C08L75/08C08L71/02C08K13/02C08K5/09C08K3/22C08J9/04E01D101/40
CPCE01D19/14E01D21/00C08J9/0023C08J9/0066C08J9/04C08J2311/00C08J2375/08C08J2423/06C08J2471/02E01D2101/40
Inventor 朱万旭邢心魁徐婧徐荣铭
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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