铝合金桁架天桥荷载试验及承载分析

Analysis on Load Testing and Carrying Capacity of Aluminum Alloy Pedestrian Overcrossing

西单商业街新建东副天桥为铝合金桁架结构形式,紧邻西单北大街,人员通行量非常大,为保证人行天桥今后的安全使用,需要对该人行天桥进行荷载试验,来全面检验铝合金桥梁的施工质量和承载能力。并且该天桥属于新材料、新工艺,迄今国内还缺少关于铝合金桥梁的施工及验收规范,同时也缺乏相应的荷载试验规范,因此本次荷载试验及分析能够对相关的铝合金结构工程和类似的桥梁工程起到积极的借鉴意义。

The pedestrian overcrossing, bestraddling, close to the north xidan road, is a truss bridge of aluminum alloy bearing very huge traffic. For safety, it is necessary to verify the carrying capacity of the new bridge by the loading test, as well as to check the construction quality. Hitherto there are no any code or specification of construction and test about aluminum alloy in respect to bridge of aluminum alloy. The loading test of the bridge may offer useful and positive effect for similar bridge and the other project of aluminum alloy.