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利用组合压杆稳定性知识分析腹杆布置形式对轴心受压构件整体稳定性的影响。在等稳定性条件下,给出塔式起重机常见塔身腹杆布置形式的用料情况,在等刚度条件下对两种典型结构形式进行设计,并利用有限元计算软件对其进行分析,得出两种结构的应力、变形及用料情况。对塔式起重机设计和塔身结构改进有一定的指导意义。
The effect of the web arrangement on the overall stability of the axial compression member was analyzed using the knowledge of the stability of the composite compression bar. Under the condition of equal stability, this paper gives the materials used in tower cranes with tower body and web. The two typical structures are designed under the condition of equal stiffness and analyzed by finite element software The two structures of the stress, deformation and materials situation. The design of the tower crane and tower structure has some guiding significance.