摘要
钢-混凝土组合梁具有自重轻、承载能力高、抗震性能好等优点,在我国桥梁建设及旧桥改造加固等领域已得到广泛应用,并取得了良好的社会经济效益。结合工程实例,介绍钢-混凝土组合梁在旧双曲拱桥改造加固中的应用。利用组合梁桥自身特点,通过结构体系转换,大幅提高结构承载能力,从而达到桥梁荷载等级提升、运营能力提高的目的,为旧双曲拱桥的改造加固提供一种新思路。
Owing to the advantages of the light self weight, great carrying capacity and good seismic performance of steel and concrete composite beams, the beams have been widely applied in the field of bridge construction and old bridge rehabilitation and strengthening in China and have therefore achieved good social and economic benefits. In this paper, with reference to the practical engineering example, the application of the steel and concrete composite beams to the rehabilitation and strengthening of an old double-curved arch bridge is presented. The utilization of the characteristics of the composite beams and the transformation Of structural system greatly improve the carrying capacity of the rehabilitated or strengthened structure and consequently, reach the goal of upgrading the load and operation capacity of the bridge and provide a new way for rehabilitation and strengthening of old double-curved arch bridges.
出处
《桥梁建设》
EI
CSCD
北大核心
2008年第4期91-93,共3页
Bridge Construction
关键词
钢-混凝土组合梁
双曲拱桥
桥梁改造
桥梁加固
工程运用
steel and concrete composite beam
double-curved arch bridge
bridge rehabilitation
bridge strengthening
engineering application
