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首页> 外文会议>Innovative infrastructures - toward human urbanism : Report >Strengthening Solutions for the Extended Service Life of the Galecopperbridge in the Netherlands
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Strengthening Solutions for the Extended Service Life of the Galecopperbridge in the Netherlands

机译：加强解决方案以延长荷兰Galecopperbridge的使用寿命

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摘要

The Galecopperbridge consist of two separate Cable Stayed Steel Highway Bridges. It is situated inrnthe heart of the Dutch dense trafficked Highway Network and spans the most densely used canal inrnthe Netherlands. The bridges were built in the 1970’s and designed to the Dutch national codes.rnThey are currently suffering under extreme heavy tire loads, increasing number of heavy vehiclesrnand an increased static live load. The bridges show fatigue failures in the orthotropic deck and thernglobal structure is facing static safety issues. This has resulted in a close monitoring to date, andrnregular repairs. An extensive repair and strengthening scheme is developed to provide a morernsustainable solution for another 30 years of service life.rnThe article will focus on the extensive strengthening scheme of the superstructure. The bridge isrnstrengthened with a pair of high strength steel girders that relieve the existing structure in such arnway that further strengthening of the severely overstressed steel deck, substructures and foundationsrncan be avoided. At the same time the clearance over the canal is increased and the bridge isrnprepared (and strengthened) for future widening. Due to a great amount of prefabrication, work onrnsite is reduced and the hindrance to the highway and shipping traffic is minimized.rnThe execution of the scheme is designedrnfrom the point of view to minimizerntraffic hindrance, construction time andrnlife cycle costs. It also allows forrnpotential future widening as part of thernwidening of the Arterial Road of thernCity of Utrecht. Therefore this is arnsustainable solution for existingrnInfrastructure from the perspective ofrnservice life and service use.
机译：Galecopperbridge包括两个独立的斜拉钢公路桥。它位于荷兰人口稠密的公路网的中心，横跨荷兰最密集的运河。这些桥梁是在1970年代建造的，并按照荷兰的国家法规进行设计。rn目前，它们承受着极重的轮胎载荷，越来越多的重型车辆和越来越多的静态活动载荷。桥梁显示出正交异性甲板中的疲劳失效，全球结构正面临静态安全问题。这导致了迄今为止的密切监视以及不定期的维修。制定了广泛的维修和加固方案，以提供更可持续的解决方案，以延长30年的使用寿命。本文将重点讨论上部结构的广泛加固方案。桥梁用一对高强度钢梁加固，减轻了巷道中的现有结构，可以避免进一步加重严重过应力的钢桥面，下部结构和地基。同时，增加了运河上的净空，并为将来的扩建做好了桥梁的准备（和加固）。由于大量的预制，减少了现场工作，并最大程度地减少了对公路和航运的阻碍。从角度出发，设计方案的执行是为了最大程度地减少交通障碍，施工时间和生命周期成本。作为乌得勒支市城市道路干线拓宽的一部分，它还允许潜在的未来拓宽。因此，从使用寿命和服务使用的角度来看，这是现有基础设施的可持续解决方案。

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