基于ABAQUS及Midas计算桥铺对横向分布系数的影响  

THE INFLUENCE OF BRIDGE PAVING ON THE TRANSVERSE DISTRIBUTION COEFFICIENT OF MAIN BEAMS BASED ON ABAQUS AND MIDAS CALCULATION

作　　者：吴桐 樊港平 窦传冬 李焕哲 饶金成 WU Tong;FAN Gangping;DOU Chuandong;LI Huanzhe;RAO Jincheng(School of Civil Engineering,Heilongjiang University of China,Harbin 150000,China)

机构地区：[1]黑龙江大学建筑工程学院,哈尔滨150000

出　　处：《低温建筑技术》2023年第8期19-23,28,共6页Low Temperature Architecture Technology

基　　金：黑龙江省省属高等学校基本科研业务费科研项目(2022-KYYWF-1055)。

摘　　要：为探究桥面铺装对空心板梁桥横向分布系数的影响,将有限元模拟与工程实测相比较,得出在考虑铺装的情况下,其挠度、应力效应会分别小31.6%、17.6%左右,因铰缝与主梁间黏结作用而减小的桥梁整体的挠度效应至少约有8%。通过Midas空间梁格法和Abaqus实体有限元法计算荷载横向分布系数,计算结果表明桥面铺装可以提升桥梁结构的整体受力性能,体系刚度提升大约0.68%。采用铰接板梁法来计算荷载横向分布系数与实际工程中的情况更加接近,且结果偏于安全。研究成果可为空心板梁桥的设计和养护提供参考。This paper studies the impact of bridge deck pavement on the lateral distribution coefficient of hollow slab girder bridges.By comparing results from finite element simulation and engineering measurement,it is found that the deflection and stress of the bridge respectively reduce 31.6% and 17.6% under the paving condition.The overall deflection of the bridge reduces 8% due to the bonding effect between the hinge joint and the main beam.The lateral load distribution coefficient is calculated by spatial beam grid method in Midas and solid finite element method in Abaqus.The results show that bridge deck pavement improve the overall load-bearing performance of the bridge structure,and the system stiffness can be increased by 0.68%.The lateral distribution coefficient of the load calculated by the hinged plate beam method is close to that of the practical situation in engineering,and the results are biased towards safety,providing the reference for the design and maintenance of hollow slab beam bridges.

关 键 词：Midas空间梁格法 空心板梁桥 桥面铺装 荷载横向分布系数 

分 类 号：TU311.4[建筑科学—结构工程]