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Anchor reinforcement motorway tunnel 2008 - Geobrugg Anchor reinforcement motorway tunnel 2008 - Geobrugg
Anchor reinforcement motorway tunnel 2008 - Geobrugg Anchor reinforcement motorway tunnel 2008 - Geobrugg
Anchor reinforcement motorway tunnel 2008 - Geobrugg Anchor reinforcement motorway tunnel 2008 - Geobrugg

Anchor reinforcement motorway tunnel

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地点
St. Gallen
国家/地区
瑞士
安装年份
2008
客户
Federal Road Office Astra
工程
Geobrugg AG
防护对象
Other
系统
ROMBO Mesh
系统的高度
N/A
情况

-

描述

Some of the tie bars in the vicinity of a gravity wall have corrosion problems. These corrosion problems can result in tie bars suddenly fracturing – brittle fracture – and flying into the clearance gage profi le of the adjacent freeway lane. The aim of an elaboration was to brake the tie bars at a relatively short distance, preventing them from penetrating the lane space. Geobrugg’s answer comprises a high-tensile steel wire mesh stretched in front of the 64 tie bar heads and provided with four braking rods, two at the top and two at the bottom. The ingenious interaction of this mesh and the specially designed braking system permitted a reduction in kinetic energy of up to 30 kJ for a defl ection of only 40 cm. Use is made here of the specifi c material properties of the utilized steel (very high dynamic- plastic deformation capability).

本地联系方式

Urs Dornbierer
Urs Dornbierer
General Manager Industrial and Safety Solutions
Impact protection
Geobrugg AG
Aachstrasse 11
8590 Romanshorn / 瑞士
Phone +41 71 466 84 14
手机 +41 79 810 95 44

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