摘要
通过对多肋钢桁架拱桥不同合拢方式的分析比较,得出了在不同温度的影响下,采取不同的合拢方式成拱后的位移、内力以及弯矩是不同的,因此,合理的合拢方案有助于提高桥梁的线形,改善主拱肋的受力。
Through the analysis of the multi-rib steel truss arch bridge and comparison of different closure methods,it obtained that under different temperatures,the closure ways after the displacement,internal forces and moments are different.Therefore,reasonable closure programs are helpful to improve the bridge＇s alignment and the force of main arch ribs.
出处
《价值工程》
2010年第12期24-25,共2页
Value Engineering
关键词
合拢
大跨度拱桥
轴力
弯矩
位移
closure
large span arch bridge
axial force
moment
displacement
