起重运输机械Issue(6)：41-44,4.
重载板梁结构弱翼缘贴角焊缝的可行性研究
摘要
Abstract
The weld joint between the plate-welded girder flange and web of heavy-load bridge crane bears complex stress,so proper design for the weld joint is important to ensure load-carrying safety.In view of the situation where 8-mm u-nilateral fillet welding which is much more less than domestic standard reference value is applied in the case of 5 1 mm-thick flange slab and 16mm-thick web of 800t bridge cranes,the stress distribution in weld joint is analyzed by the finite element modeling method to get the more accurate stress analysis result.The shell-shell submodel analysis is performed to verify the precision of grid density of the general model.Through shell-body submodel and contact analyses,precise research on grid refinement is done for the weld joints,which indicates feasibility of applying smaller fillet weld size for thicker flange plate and thinner web.The conclusion can facilitate to set the weak unilateral fillet flange weld under similar conditions to reduce the weld amount and production cost.关键词
桥式起重机/弱单边贴角翼缘焊缝/主梁/子模型/接触分析Key words
bridge crane/weak unilateral fillet flange weld/girder/submodel/contact analysis分类
机械制造引用本文复制引用
徐成兴,秦义校,李树渊,王建强..重载板梁结构弱翼缘贴角焊缝的可行性研究[J].起重运输机械,2014,(6):41-44,4.基金项目
山西省自然科学基金资助项目（2013011022-6）、国家自然科学基金资助项目 （）
