摘要
首先对现役石拱桥承载能力进行了研究,归纳了影响其承载能力的3个因素;然后利用有限元的模型分析,对影响现役石拱桥潜承载能力的3个因素进行分析,得到了拱上腹拱、实腹段填料、侧墙及行车道对其承载能力有提高作用的结论。因此,对现役石拱桥的极限承载能力需要正确评估。
The paper firstly studies the carrying capacities of the stone arch bridges under service,sums up three factors affecting its carrying capacity,then analyzes three factors affecting the potential carrying capacities of stone arch bridges under service by the finite element model,and finally gives the conclusion that the upper spandrel arch of arch,the stuffing of solid web section,the side wall and the carriageway can improve its carrying capacity.Therefore,it is necessary to correctly evaluate the terminal carrying capacity of stone arch bridges under service.
出处
《城市道桥与防洪》
2012年第1期48-51,8,共4页
Urban Roads Bridges & Flood Control
关键词
石拱桥
承载能力
潜承载能力
stone arch bridge,carrying capacity,potential carrying capacity
