水平臂式塔机顶部支撑形式对起升动载系数的影响  

On influence of top support form of tower crane with horizontal boom on dynamic coefficient of lifting

作　　者：王强[1] 

机构地区：[1]贵州交通职业技术学院汽车工程系,贵州贵阳550008

出　　处：《山西建筑》2013年第17期215-216,共2页Shanxi Architecture

摘　　要：以QTZ1250型塔机的两种顶部支撑形式结构为例,使用动力有限元方法,从下降制动工况的角度对不同顶部支承形式对塔机起升动载系数的影响进行了分析。结果表明,顶部支承形式的不同对塔机整体结构的动力学特性和起升动载系数的影响不大,从而为塔机起升动载系数的进一步改进提供了参考。Take the version of QTZ1250 for example, this paper using the finite element method analysis the influence of the different topstruc ture to the liftingload coefficient during the braking operation as the load is falling. Based on the results we can say that the influence of the dif ferent topstructure to the dynamic characteristic of the tower crane and the liftingload coefficient is small. That lays the foundation for the im prove of the tower crane＇ liftingload coefficient.

关 键 词：塔式起重机 起升动载系数 动力分析 有限单元法 

分 类 号：TU731[建筑科学—建筑技术科学]