摘要
主要介绍了高填土盖板涵计算假定、承受的汽车荷载效应扩散方式及计算方法,分析不同填土高度盖板涵所承受的车辆荷载及扩散面积,并考虑多车道折减系数。研究结果表明:当涵洞设计为多车道时,两车道受力最为不利;车辆荷载效应随填土高度增加而逐渐减小。同时,总结高填土盖板涵汽车车辆荷载效应扩散规律,为类似工程提供借鉴。
This paper mainly introduces the diffusion mode and calculation method of the automobile load effect assumed and borne by the high filling earth covered slab culvert.The vehicle load and diffusion area of the cover culvert with different fill height are analyzed and the multilane reduction factor is considered.The results show that when the culvert is designed with multiple lanes,the twolane force is the most unfavorable.The vehicle load effect decreases with the increase of filling height.At the same time,the diffusion law of load effect of high fill cover culvert is summarized to provide reference for similar projects.
作者
于锋
孙爱芬
刘鹏
YU Feng;SUN Aifen;LIU Peng(Shandong Transportation Institute,Shandong Jinan 250031 China;Shandong Expressway Traffic Construction Group Co.,Ltd.,Shandong Jinan 250014 China)
