【摘要】 下拉索多塔斜拉桥是最新提出的用于解决多塔斜拉桥中塔刚度的体系。以某长江大桥为工程背景设计几种多塔斜拉桥形式,对比分析新型下拉索多塔斜拉桥结构体系与其他体系的异同。分析表明,下拉索多塔斜拉桥结构体系能有效提高结构刚度,而且相对经济合理,是可推广应用的新型结构体系。更多还原

【Abstract】 The downhaul multi-pylon cable-stayed bridge is a newly proposed system for settling the rigidity of pylon.This paper,taking one Yangtze River Bridge as its project background,designs a few types of multipylon cable- stayed bridges,analyzes and compares similarities and differences between the structural systems of the downhaul multi-pylon cable-stayed bridge and other systems.The analysis shows that the structural system of the downhaul multi-pylon cable-stayed bridge is a new-type structural system to be popularized because it can effectively enhance the rigidity of structure with relatively higher economical efficiency and rationality.更多还原