整体式简支板桥汽车荷载内力计算分析  

Calculation and Analysis of Load Internal Force of Integral Simply Supported Slab Bridge

作　　者：吴洪亮 胡红昌 Wu Hongliang;Hu Hongchang(Fifth Engineering Co.,Ltd.,China Communications First Bureau,Beijing,100000;Haiwei Engineering Construction Co.,Ltd.,China Communications First Bureau,Beijing,100000)

机构地区：[1]中交一局第五工程有限公司,北京100000 [2]中交一局海威工程建设有限公司,北京100000

出　　处：《当代化工研究》2021年第20期171-172,共2页Modern Chemical Research

摘　　要：本文介绍了整体式简支板桥汽车荷载的布载方式、内力计算、结果分析等内容。采用理论计算和有限元方法,研究了小跨径整体式简支板在车道荷载和车辆荷载作用下的受力特点,研究表明,采用理论方法计算的简支板桥在车道荷载和车辆荷载作用下的最大弯矩和最大剪力结果相差不大,而Midas Civil的计算结果则差异性明显,对于新建的整体式简支板桥若采用有限元进行设计时,支座剪力的计算可采用车辆荷载计算值为依据,而跨中弯矩则可采用车道荷载计算值为依据。This paper introduces the load distribution mode,internal force calculation and result analysis.In this paper,theoretical calculation and finite element method are used to study the mechanical characteristics of small-span monolithic simply supported slab under lane load and vehicle load.The research shows that the results of maximum bending moment and maximum shear force of simply supported slab bridge under lane load and vehicle load calculated by theoretical method are similar,but the results of Midas Civil are obviously different.When the newly built monolithic simply supported slab bridge is designed by finite element method,the calculation of bearing shear force can be based on vehicle load,while the mid-span bending moment can be based on lane load.

关 键 词：整体式简支板桥 车辆荷载 车道荷载 

分 类 号：TQ[化学工程]