中国大陆创建多塔大跨度悬索桥的工程进展

自20世纪90年代开始,悬索桥结构在中国大陆地区得到了蓬勃的发展与应用.悬索桥结构受力明确,材料极限强度得以充分发挥,工程造价与其主跨的大小直接关连.介绍中国大陆几座正在建设和即将开工与正在进行方案设计之中的、各具不同环境特点的多塔多跨悬索桥实例.实践证明:在宽阔深水的江河和海域,在不影响通航顺畅和水流态势的条件下,采用多塔多主跨悬索桥方案,将是在技术上和经济上较为合理可行的选择.

Proceeding of Construction of Long Span Multi-Tower Suspension Bridges Innovated by Mainland China

Since the beginning of the 1990s, the suspension bridge structures have gained vigorous development and application in the mainland China. The force conditions of the structures are clear, the ultimate strength of materials can be brought into full play and the construction cost is directly related to the scale of main span length of the structures. Several practical examples of the multi-tower and multi-span suspension bridges that are being constructed, about to be constructed, are being conceptually designed in China and that have different environmental characteristics are presented. Practice proves that on condition that the navigation and river flow status are not to be interfered, the selection of the multi-tower and multi-span suspension bridges over the wide and deep water river and sea will be the rational and practical choice both technically and economically.