内爬式塔式起重机支承梁端部弯矩弱化技术的研究  

Research on the technology for the moment weakening of support beam of innerclimbing tower crane

作　　者：李斌[1] 顾生青 肖凡[1] 

机构地区：[1]沈阳建筑大学交通与机械工程学院,辽宁沈阳110168

出　　处：《建筑机械》2014年第2期67-71,13,共5页Construction Machinery

摘　　要：按照变截面梁与等截面梁在单位弯矩作用下转角位移相等的原则,求出变截面梁的等效长度,然后采用等截面梁的计算公式来计算变截面的变形,最后用图乘法求解阶梯形变截面静定梁。通过matlab软件给出了弯矩与惯性矩比、变截面长度比之间的函数图,从而确定最优化的支承主梁,对于较薄墙体支护具有重要意义。According to the variable cross-section beam and beam in the unit under the action of equality,the equivalent length of variable section beam,and then to calculate the deformation of variable cross-section using the formula of uniform beam,the diagram multiplication to solve the stepped variable cross section beam.Through the matlab software gives the function relationship between the moment and the parameters,we can determine the optimal supporting beam,the thin wall support has important significance.

关 键 词：内爬式塔式起重机 变截面梁 等效长度 图乘法 

分 类 号：TH213.3[机械工程—机械制造及自动化]