摘要
以某中承式系杆拱桥为工程背景,叙述了按照新的规范要求对老桥增加纵梁的设计方案。通过增加加劲纵梁方案的总体及细节设计,提高了桥梁的耐久性及安全冗余性,避免了系杆拱桥因单根吊杆失效导致桥梁垮塌,对同类正在运营的漂浮体系系杆拱桥的改造提供有益的借鉴思路。
Taking a mid-through tied arch bridge as the engineering background,the design plan of adding longitudinal beams to the old bridge in accordance with the new specifications is described.By increasing the overall and detailed design of the stiffening longitudinal beam scheme,the durability and safety redundancy of the bridge are improved,and the tied arch bridge is prevented from collapsing due to a suspension rod failure.Transformation provides useful reference ideas.
作者
钱玮
Qian Wei(Jiangsu Zhongshe Group Co.,Ltd.,Wuxi 214000,China)
出处
《山西建筑》
2020年第24期131-133,共3页
Shanxi Architecture
关键词
拱桥
桥面系纵梁
吊杆失效
arch bridge
bridge deck stringer
suspension rod failure
