摘要
结合曲线梁桥弯扭耦合特性,对曲线梁桥的不同支撑布置型式及其受力特性进行了探讨。对独柱墩曲线梁桥的倾覆机理、失效模式及影响因素进行了详细的研究,总结出提高独柱墩曲线梁桥抗倾覆稳定的方法,包括对车辆荷载的研究与管控、优化点铰支撑布置、设置横向稳定构造、开展运维状态支座反力监测等,以提高桥梁的稳定性与安全性。
According to the coupling characteristics of bending and torsion of the curved girder bridge, main supporting layouts of this bridge type and their structural performances are discussed. Further, the overturning mechanism, failure mode, and influencing factors on single column pier curved girder-bridge are investigated. Finally, the countermeasures against overturning issue of single column pier curved girder-bridge are proposed, which includes the study and management of overloaded trucks, optimization of single support of single pier, setting of lateral stable slructure, and monitoring of bearing force under operation. The essentials concluded in the paper could improve the stability and safety of girder-bridge.
出处
《工程建设与设计》
2018年第5期100-102,共3页
Construction & Design for Engineering
关键词
独柱墩
曲线梁桥
抗倾覆
稳定性
超载重载
安全性分析
single column pier
curved girder-bridge
against overturning
stability
overloaded and heavy-loaded
safety analysis
