Double-layer main cableway bridge

A main cable, double-layer technology, applied in bridges, bridge parts, bridge applications, etc., can solve the problems of increasing construction difficulty and cost, unable to solve the problems of driving conditions and main cable force, etc., to improve driving conditions and reduce main cables. Pulling force, the effect of reducing the pulling force of the main cable

Active Publication Date: 2018-05-11
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the setting of the middle pier increases the construction difficulty and cost, and cannot solve the contradiction between the driving conditions and the force of the main cable

Method used

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  • Double-layer main cableway bridge
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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing.

[0017] Such as Figure 1 ~ Figure 3 As shown, the present invention includes anchorages 1 arranged on both sides of the river, main cables are laid between the anchorages 1, bridge decks are laid on the main cables, the main cables include upper main cables 2 and lower main cables 3, upper main cables 2 and lower main cables The main cables 3 are connected by steel bent frames 4;

[0018] The preferred embodiment of the anchorage structure at both ends of the main cable is as follows: abutments 5 are respectively arranged on both sides of the river, the abutments 5 are arranged inside the anchorage 1, and the tops of the abutments 5 are provided with cable saddles 6, and the two ends of the main cable are wound around the cable saddles. 6 are respectively provided with a connection adjuster 7, and the two ends of the main cable are connected to the anchor cable 8 after pas...

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Abstract

The invention relates to a cable bridge with double-layer main cable, belonging to bridge engineering filed. Cable bridge with double-layer main cable comprises anchorages arranged on both sides of a river channel, main cable laid between the anchorages and bridge deck slabs laid on the main cables. The main cable comprises upper main cable and lower main cable. The upper main cable and the lower main cable are connected by steel bent frames. The vector of the lower main cable is larger than the upper main cable. The main cable is divided into two layers. The lower main cable is adopted with a catenary with larger vector to reducing the tension the main cable. The lower main cable is provided with the steel bent frames connecting with the upper main cable. The upper main cable is adopted with the catenary with smaller vector to improve traffic conditions. Meanwhile, the steel bent frames on the lower main cable plays an elastic supporting role for the upper main cable, which is equivalent to dividing the upper main cable into a multi-span cable bridge, thus reducing the tension of the upper main cable. Double main cables of a cable bridge can effectively improve the traffic condition and reduce the tension of the main cables.

Description

technical field [0001] The invention relates to a double-layer main cable cableway bridge, which belongs to the field of bridge engineering. Background technique [0002] Modern cableway bridge is a temporary bridge structure widely used in large-scale engineering construction. The vehicle load of the cableway bridge is transmitted to the load-bearing main cable through the bridge deck, and the main cable transmits the force to the anchorage anchored on both sides of the bridge. Cableway bridges usually use single-span cableway bridges and multi-span cableway bridges. Multi-span cableway bridges set intermediate supports in the middle of single-span cableway bridges, thereby reducing the span of cableway bridges. [0003] The single-span cableway bridge is equipped with anchorages on both sides of the river, main cables are laid between the anchorages, bridge decks are laid on the main cables, and vehicles travel on the bridge decks. The vehicle load is transmitted to the l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D18/00E01D19/16
CPCE01D18/00E01D19/16
Inventor 杜洪亮傅支黔
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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