有机玻璃模型铰接T梁桥横向分布系数分析  

Analysis of Transverse Distribution Coefficient of Plexiglass Model Hinged T-Beam Bridge

作　　者：董春彦 陈顺超 康瑾 郑维龙 游鹏升 DONG Chunyan;CHEN Shunchao;KANG Jin;ZHENG Weilong;YOU Pengsheng(Southwest Forestry University of Civil Engineering,Kunming 650224,China;Yunnan Tongqu Engineering Testing Co.,Ltd.,Kunming 650200,China)

机构地区：[1]西南林业大学土木工程学院,云南昆明650224 [2]云南通衢工程检测有限公司,云南昆明650200

出　　处：《河南科技》2022年第23期86-89,共4页Henan Science and Technology

摘　　要：为了分析简支正交铰接T梁桥荷载横向分布规律,通过有机玻璃材料制作简支正交铰接T梁桥模型。之后在不同工况下模拟静载试验,得到其荷载横向分布的影响,将有机玻璃T梁桥模型与基于梁格法的有限元分析软件模型对比分析。使用Midas Civil软件建立有机玻璃桥梁的有限元分析模型,采用释放梁端约束法和梁格法模拟铰接T梁桥。经过试验实测数据计算荷载横向分布系数mc与采用Midas Civil软件提取值计算得到的mc差异性较小,从而证实有限元理论分析模型模拟实测桥梁的合理性。To analyze lateral load distribution law of simply supported orthogonal hinged T-beam bridge,the simply supported orthogonal hinged T-beam bridge model was made of plexiglass material.Then the static load test is simulated under different working conditions,and the influence of lateral load distribu⁃tion is obtained.The plexiglass T-beam bridge model is compared with the finite element analysis soft⁃ware model based on grillage method.The finite element analysis model of plexiglass bridge is estab⁃lished by Midas Civil software,and the hinged T-beam bridge is simulated by releasing beam end con⁃straint method and grillage method.There is little difference between the load transverse distribution co⁃efficient mc calculated by the test data and the value calc-ulated by Midas Civil software,which proves the rationality of the finite element theoretical analysis m-odel to simulate the measured bridge.

关 键 词：静载试验 有限元分析模型 荷载横向分布系数 有机玻璃 铰接T梁桥 

分 类 号：U448.21[建筑科学—桥梁与隧道工程]