摘要
为研究剪力键抗剪刚度对组合梁桥收缩徐变的影响,根据收缩徐变的本构模型,依托工程实例用有限元软件分析,总结出剪力键抗剪刚度对挠度和应力的影响规律。结果表明:跨中截面挠度随着剪力键刚度的增加而增大,第一跨跨中截面混凝土桥面板应力随剪力键刚度的增加而增大,而第二跨跨中截面混凝土桥面板应力随剪力键刚度的增加先增大后减小,且钢梁应力随剪力键刚度的增加而减小。
In order to study the influence of shear stiffness of shear key on the shrinkage and creep of composite beam bridge,the shrinkage and creep constitutive model is obtained.Based on the engineering project,the influence law of shear stiffness of shear key on deflection and stress is summarized by using finite element analysis software.The conclusions show that the deflection of midspan section increases with the increase of shear key stiffness.The stress of concrete bridge deck in the middle section of the first span increases with the increase of shear key stiffness,while that of the second span increases first and then decreases with the increase of shear key stiffness,and the stress of steel beam decreases with the increase of it.
作者
鹿俊杰
赵青
LU Junjie;ZHAO Qing(Anhui Jianzhu University, Hefei 230601, China)
出处
《洛阳理工学院学报（自然科学版）》
2021年第4期34-38,共5页
Journal of Luoyang Institute of Science and Technology：Natural Science Edition
关键词
钢混组合梁桥
收缩徐变
有限元分析软件
抗剪刚度
steel concrete composite beam bridge
shrinkage and creep
finite element analysis software
shear stiffness
作者简介
鹿俊杰(1996-),男,安徽合肥人,在读硕士研究生,主要从事道路桥梁方面的研究.E-mail:2405257168@qq.com;通讯作者:赵青(1968-),男,安徽芜湖人,硕士,教授,硕士生导师,主要从事道路桥梁方面的研究.E-mail:zhao988@163.com。
