摘要
为了对非自平衡张弦梁体系加固大跨度连续钢构桥的抗山洪冲击效应进行分析,以新疆省某大跨度连续钢构桥为例,对非自平衡张弦梁体系加固大跨度连续钢构桥的抗山洪冲击效应进行了分析。首先建立非自平衡张弦梁体系加固模型,对NSE-BSS上弦受压构件的结构和拉索的安装方式进行优化,获得两种NSE-BSS的优化方案;对NSE-BSS加固后的大跨度连续刚构桥进行静力分析和抗山洪冲击效应分析。分析结果表明:大跨度连续钢构桥经过非自平衡张弦梁体系的加固后,能够大幅度提高桥的抗山洪冲击效应,同时桥的承载能力也得到有效的提高。
In order to analyse not self balancing beam string structure system in long-span continuous steel structure bridge reinforcement against mountain torrent shock effect, a long-span continuous steel structure bridge in liaoning province as an example, the reinforcement of the not self balancing beam string system of long- span continuous steel structure bridge against mountain torrent shock effect is analyzed. Since the first to establish the not self balancing beam string system reinforcement model, the structure of NSE - bent BSS compression member and cable installation method is optimized, get two NSE - BSS optimization scheme; In NSE - BSS after reinforcement of long-span continuous rigid frame bridge on static analysis and the analysis of mountain torrent shock resistant effect. The analysis results show that the long- span continuous steel structure bridge through the not self balancing after reinforcement of beam string structure system, can greatly improve the bridge against mountain torrent shock effect, at the same time, the carrying capacity of bridge is effectively improved.
作者
李杰
Li Jie(Xinjiang Vocational & Technical College of Communications,Urumqi Xinjiang 831401,China)
出处
《科技通报》
北大核心
2017年第1期225-229,253,共6页
Bulletin of Science and Technology
关键词
非自平衡
张弦梁
山洪冲击效应
not self balancing
beam string structure
mountain torrents shock effect
