槽形梁在跨航道桥梁扩容改造中的应用

Application of Trough Beam in Capacity Expansion and Reconstruction of Bridge across Channel

随着经济的发展,城市区域的扩张,早期建设的跨运河桥梁往往成为交通瓶颈,交通矛盾日益突出急需扩容改造。现以苏州狮山桥拓宽工程为例,介绍槽型梁桥的应用,克服了两岸交叉口限制、航道标准提高、航道运输繁忙、新老桥结合与融入环境等难题,并对大跨度人行桥的舒适性和TMD阻尼器的应用进行了比较和研究。

Along with the development of the economy and the expansion of urban areas,the early construction of bridges across canals often becomes the traffic bottlenecks.The traffic contradictions are increasingly prominent and it is urgently to need the capacity expansion and reconstruction.Taking Suzhou Shishan Bridge Widening Project as an example,the application of trough beam bridge is introduced to overcome the difficulties of intersection restriction on both sides,improvement of channel standards,heavy channel traffic,old and new bridges integrated with the environment.The comfort of long-span footbridge and the application of TMD damper are compared and studied.