侧向支座对重件码头桥机轨道梁影响的有限元分析  

Finite element analysis of influence of lateral support on track beam of heavy-cargo bridge

作　　者：张威 罗小红 卢泽晖 王定略 ZHANG Wei;LUO Xiaohong;LU Zehui;WANG Dinglyue(Hubei Communications Plan and Design Institute Co.,Ltd.,Wuhan 430051,China)

机构地区：[1]湖北省交通规划设计院股份有限公司,湖北武汉430051

出　　处：《水运工程》2024年第6期77-83,共7页Port & Waterway Engineering

摘　　要：针对某重件码头钢桁架悬臂式桥机轨道梁是否设置侧向约束的问题进行研究,采用ANSYS有限元进行有无支座对比分析方法,研究发现:侧向支座的设置虽然加大了桥机轨道梁Z方向变形,但减小了双侧轨道梁整体挠度差,降低轨道梁局部应力达17 MPa,钢材屈服强度下安全储备提高约7%,使得桥机可以在更大的范围内安全作业。结论表明在相同工况下,支座的设置能够确保桥式起重机在相同位置处的安全运行,且该计算结果对工程设计具有借鉴意义。A study is conducted on the issue of whether lateral constraints are set on the steel truss cantilever bridge crane track beams of a heavy-cargo bridge.ANSYS finite element method is used for comparative analysis with and without supports.It is found that although the setting of lateral supports increased the Z-direction deformation of the bridge crane track beams.The overall deflection difference of the double-sided track beams is reduced,the local stress of the track beams is reduced to 17 MPa.The safety reserve under the yield strength of the steel is increased by about 7%,so that the bridge crane can operate safely on a larger scale.The conclusions indicate that under the same working conditions,the setting of supports can ensure the safe operation of bridge cranes at the same position.At the same time,this calculation result has reference significance for engineering design.

关 键 词：重件码头 桥机轨道梁 ANSYS有限元 侧向支座 

分 类 号：U65[交通运输工程—港口、海岸及近海工程]