基于二阶理论及刚度分配法的塔式起重机附着结构受力分析  

Structural loading analysis on tower crane attachment based on second-order theory and stiffness distribution method

作　　者：温舒瑞[1] 陆念力[1] 詹伟刚[1] 

机构地区：[1]哈尔滨工业大学机电工程学院,黑龙江哈尔滨150001

出　　处：《中国工程机械学报》2013年第3期190-194,共5页Chinese Journal of Construction Machinery

基　　金：国家科技支撑计划项目(2011BAJ02B01)

摘　　要：针对塔式起重机弹性附着装置的支撑刚度和内力计算问题,分析了计及二阶效应的塔式起重机塔身受力情况;应用刚度分配法,分析塔身在各种外部载荷作用下导致的支撑结构位移、结构内力和支座反力,给出工程中最常用的三杆式的附着装置支撑刚度的计算方法,给出了支座反力和杆件内力的显式解析表达;运用本文的方法对实际塔机附着装置进行计算分析,通过有限元软件验证了计算的正确性和有效性,为工程设计与应用提供了有益参考和借鉴.According to the support stiffness and internal force calculation of tower crane flexible attachment device, the force analysis on tower body with consideration of the second order effect is first deduced. Based on the stiffness distribution method, the support structure displacement, structure internal force and support reaction under various external loading on the tower body is analyzed. Then, the support stiffness calculation method for the common three-linkage attachment device is obtained. Next, the explicit analytical expression of support reaction and rod internal force is deployed. By applying the proposed method to calculate and analyze the practical tower crane attachment device, the calculation correctness and effectiveness are finally verified using the finite element software. Therefore, this approach provides a beneficial reference to engineering design and application.

关 键 词：塔式起重机 柔性附着 支座反力 结构内力 

分 类 号：TH21[机械工程—机械制造及自动化]