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Suspension Bridge Anchorage Anchorage Device

An anchoring device, a technology for suspension bridges, applied in bridges, bridge construction, bridge parts, etc., can solve the problems of reducing the safety factor of the anchorage system, achieve simple structure, significant effect, and ensure the safety of the bridge

Active Publication Date: 2018-11-30
中国电建集团市政规划设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned defects and provide an anchoring device with simple structure, safety and reliability, convenient construction, which can enhance the safety reserve of the anchorage of the suspension bridge, so as to solve the problem of reducing the anchorage system due to the failure of individual anchor cables. The question of safety factor

Method used

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  • Suspension Bridge Anchorage Anchorage Device
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  • Suspension Bridge Anchorage Anchorage Device

Examples

Experimental program
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Embodiment 1

[0019] Embodiment 1: A large hole is set in the middle of the anchor cable anchorage 2 of the present invention, and a small hole is arranged on each side. The large hole is a prestressed anchor cable hole 10, which is used for the prestressed anchor cable 3 and the anchor cable anchorage 2. The connection, the small hole is the connector rod hole 11, which is used for the connection between the connector rod 1 and the anchor cable anchor 2; the anchoring steel bar 6 is a 25mm high-strength straight steel bar, and the steel mesh 7 under the anchor Pass through, the steel mesh 7 is arranged in five layers, the anchor steel 6 and the anchor steel mesh 7 are pre-embedded in the anchor slab concrete 4 and the anchor concrete 5, and the anchor steel 6 is surrounded in parallel in a rectangular shape. The anchor cable anchorage 2 and the under-anchor reinforcement mesh 7 are arranged at the end of the rock anchor anchorage 2, and the connector pull rod 1 passes through the under-anch...

Embodiment 2

[0023] Embodiment 2: The anchoring steel bar 6 described in this embodiment is a high-strength straight steel bar of 30mm, and the two ends are folded outwards. 7 through to strengthen the stability of the anchoring device, and the rest are the same as embodiment one.

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Abstract

The invention discloses a suspension bridge concrete anchor anchoring device which comprises connector pull rods, anchor cable anchors, pre-stressed anchor cables, anchoring and pulling board concrete and anchor sealing concrete. The connector pull rods, the anchor cable anchors and the pre-stressed anchor cables are connected in sequence. Multiple parallel anchoring reinforcing steel bars are arranged on the periphery of each anchor cable anchor. Multiple layers of under-anchor reinforcing meshes are arranged at the end of each anchor cable anchor. Each anchoring reinforcing steel bar penetrates the corresponding under-anchor reinforcing meshes. The anchor cable anchors, the anchoring reinforcing steel bars and the under-anchor reinforcing meshes are embedded in the anchoring and pulling board concrete and the anchor sealing concrete. Each connector pull rod penetrates the corresponding under-anchor reinforcing meshes. The suspension bridge concrete anchor anchoring device is simple in structure, safe, reliable and convenient to construct; suspension bridge concrete anchor safety storage can be enhanced; when part of the pre-stressed anchor cables of suspension bridge concrete anchors fail, the anchoring device can get involved to act in time, the internal force of a main cable can be redistributed, the durability of the suspension bridge concrete anchors is improved, and bridge safety is guaranteed.

Description

technical field [0001] The invention belongs to the field of bridge engineering, relates to a suspension bridge anchorage, in particular to an anchorage device for improving the safety of the suspension bridge anchorage. Background technique [0002] The anchorage structures of suspension bridges are generally divided into tunnel anchorage, gravity anchorage and rock anchorage, which are mainly used to resist the tension of the main cable. [0003] Due to factors such as economic and construction conditions, the rock anchor technology of suspension bridges is mostly used in bridges in mountainous areas. Most or all of the main cable load is borne by the anchor cables. The effectiveness of rock anchoring directly affects the safety of the bridge. [0004] Usually, the prestressed anchor cable and the main cable strands are connected in a one-to-one correspondence. The characteristics of this connection method are that the force transmission is relatively clear and the structu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/14
CPCE01D19/14
Inventor 汤庆超罗仕庭沈良帅张隆顺
Owner 中国电建集团市政规划设计研究院有限公司