不对称布跨刚构体系单塔斜拉桥结构设计

A Structure Design of Single Pylon Cable-stayed Bridge with Asymmetric Arrangement Span Rigid Frame System

单塔斜拉桥以其独特的景观效果,在中等跨径的桥梁方案中一直占有一席之地。结合实际工程,对刚构体系(塔、梁、墩固结)单塔斜拉桥的受力特性进行分析,对比不同的建模方式对计算精度的影响,协调配重、预应力等各种因素对成桥索力的影响。

Single pylon cable-stayed bridge with its unique landscape effect,is always occupying a place in the middle span of bridge scheme. Based on a practical project,the mechanical characteristics of rigid single pylon cable-stayed bridge(its pylon,beam and pier rigid fi xity) are made a further study to compare different modeling methods effecting on the calculation accuracy,different factors such as coordinating the counterweight and prestress effecting on the final cable force.