矮塔斜拉桥布索方式计算研究  

Disposition of Cable in Extradossed Cable-stayed Bridge

作　　者：杨庆国[1] 袁培[1] 张涛[1] 

机构地区：[1]重庆交通大学土木建筑学院,重庆400074

出　　处：《交通标准化》2009年第19期63-67,共5页Communications Standardization

摘　　要：矮塔斜拉桥作为一种介于连续梁桥与斜拉桥之间的新型桥梁,它的力学行为介于两者之间。借鉴斜拉桥中的拉索布置,针对不同布索方式的计算表明:矮塔斜拉桥的布索方式不同,将直接导致主梁的受力大小不同。密索布置优于稀疏索布置,但其优势不明显,从布索方式上看,辐射式明显优于竖琴式和扇形。As a new-style bridge between continuous girder bridge and cable-stayed bridge, extradossed cable-stayed bridge has some mechanical behaviors between them. Using the cable＇ s disposition in cable-stayed bridge for reference, the different disposition of cable in extradossed stayed bridge are analyzed, and the conclusion is got as follows, the different disposition of cablecable will make the main girder have different force, but the discrepancy is not very obvious. Close dispo- sition of cable is superior than sparse disposition, but the predominance is not distinct. By analyzing the fashion of the disposition, radiate style is better than harp style and fan-shaped style obviously.

关 键 词：矮塔斜拉桥 布索方式 结构性能 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]