摘要
矮塔斜拉桥是介于梁式桥和斜拉桥之间的一种桥型,其适用跨度也介于梁式桥和斜拉桥之间。本文结合离石高架桥主桥的设计情况,浅析PC部分斜拉桥的桥型特点、受力特性及设计要点。山西离石高架桥主桥为双塔单索面三跨连续部分斜拉预应力混凝土箱梁桥,主桥孔跨为85+135+85m,采用塔梁固结、塔梁与墩分离,墩顶设支座的结构形式。
Low tower cable stayed bridge is one type of bridge between girder bridge and cable stayed bridge,and its suitable span is also between girder bridge and cable stayed bridge.Based on the design conditions of the main frame of Lishi viaduct,the characteristics of bridge type,force principle and design gist of the PC Part of the cable stayed bridge are simply analyzed.Lishi Viaduct Bridge is a 3 span partially cable stayed prestressed concrete box girder bridge with two towers and single cable plane.Spans are attributed as 85+135+85m,the structure type of consolidated tower girder,separated tower girder and pier and top pier mouted supports is used.
出处
《公路交通科技》
CAS
CSCD
北大核心
2004年第4期66-68,72,共4页
Journal of Highway and Transportation Research and Development
关键词
矮塔斜拉桥
结构设计
力学分析
Low tower Cable stayed bridge
Structure design
Mechanics analysis
