三角刚架预应力及吊杆力对V墩异型钢混梁拱组合桥力学行为影响分析  

Analysis of Triangular Frame Prestressed and Tuspender Force on Mechanical Behavior of V Pier Special-shaped Steel Composite Beam Arch Composite Bridge

作　　者：李杰[1] 陶晨晨 秦焕城 LI Jie;TAO Chenchen;QIN Huancheng(School of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学土木工程学院,河南郑州450001

出　　处：《郑州大学学报（理学版）》2018年第1期116-122,共7页Journal of Zhengzhou University:Natural Science Edition

摘　　要：为了研究结构设计参数对V墩异型钢混梁拱组合桥力学性能的影响,采用数值分析方法,利用有限元软件建立分析模型,分析了结构对于V墩预应力、吊杆张拉力变化引起的内力和变形结果.分析表明:该结构的静力力学性能对V墩预应力值和吊杆力大小的变化敏感;V墩预应力不宜增大,适当提高吊杆张拉力的大小能够明显减小跨中截面的挠度值.In order to study the effect of structural design parameters on the mechanical properties of V piers,the numerical analysis method and the finite element software were used to establish the analytical model.The internal force and deformation caused by the structural prestress of V piers and the tension of boom were analyzed.The analysis showed that the static mechanical properties of the structure were sensitive to the change of prestress value and the magnitude of the boom force.The prestressing force of the V piers was not suitable to increase.The appropriate tension of the boom could obviously reduce the deflection value.

关 键 词：V墩预应力 吊杆力 异型钢混组合拱桥 力学性能 参数敏感性 

分 类 号：U488.29[交通运输工程—载运工具运用工程]