（中船第九设计研究院工程有限公司，上海 200063）

[摘要] 杆件由H型钢组成的桁架式吊车梁在国外工程中应用较多，而国内相关规范、文献对该类型桁架节点构造及力学性能的讨论较少。针对理论落后于实践的问题，以某吊车桁架连接节点为例，针对影响节点力学性能的三个关键因素：加肋、节点板厚度、倒角半径，采用有限元软件ANSYS建立力学模型，运用数值方法进行了精细有限元分析，得出了增大节点板厚度对改善节点应力集中效果最好，其次为增大倒角半径，最后为有条件加肋方式的结论。

[关键词] 吊车桁架；应力集中；ANSYS壳元；倒角

中图分类号： TU391     文献标识码：A         文章编号：1002-848X( )

作者简介：王飞，博士，工程师，Email:flywang007@126.com。

Design and research of a truss crane joint

Wang Fei, Ni Jiangong,Wu Zhongyue, Wu Jing, Du Yang

(China Shipbuilding NDRI Engineering Co., Ltd., Shanghai 200063, China)

Abstract: H section truss crane is widely used in oversea projects, but the mechanical property research of truss joint is inadequate in domestic specification and literature. One truss crane joint is focused, the three key factors: stiffening lib, the gusset plate thickness, and the fillet radius of the joint are discussed on the mechanical property. The software ANSYS is adopted to building up the FEA joint model. The fine limited analysis is carried on about the joint. The conclusion is that: increase of thickness is the most efficient method to solve the stress concentration, the second is increasing the fillet radius, the last one is stiffening lib method.

Keywords: truss crane; stress concentration; shell element; fillet radius

参考文献

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[2]    中华人民共和国行业准.GB 50017—2003 钢结构设计规范[S].北京：中国建筑工业出版社，2003.

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