塔机双侧四杆式超静定附着结构内力的精确解  

Accurate solution for the internal force of a four-bar-type two-side statically indeterminate attachment structure of the tower crane

作　　者：陆念力[1] 温舒瑞 赵欣 LU Nian-li;WEN Shu-rui;ZHAO Xin

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 [2]哈尔滨工程大学航天与建筑工程学院,黑龙江哈尔滨150001 [3]抚顺永茂建筑机械有限公司,辽宁抚顺113126

出　　处：《建筑机械化》2019年第12期22-26,共5页Construction Mechanization

摘　　要：为了解决塔式起重机双侧四杆式超静定弹性附着装置的内力计算问题,本文应用力法推导了这种超静定附着结构在一般安装条件下杆件内力计算的显式精确解析公式,得到了附着装置各方向解耦的支撑刚度,进而得出了在对称安装条件下该附着装置的杆件内力和支撑刚度解析计算公式。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本文计算方法的正确性和有效性。For calculating the internal forces of the two-side-four-bar-type elastic statically indeterminate attachment device of the tower crane, the force method is used to derive the explicit accurate expression of the internal forces on the condition of the general installation, and the corresponding decoupled support stiffness is obtained. Furthermore, the analytical expressions of the internal forces and the support stiffness for the symmetric attachment device are derived. Based on the structural parameters of a towercrane attachment device used in engineering, the correctness and effectiveness of the present method are validated by the finite element software.

关 键 词：塔式起重机 附着 双侧四杆式 结构内力 支撑刚度 超静定 

分 类 号：TH212[机械工程—机械制造及自动化]