塔机附墙截面力学性能分析研究

Analysis on the Mechanical Properties of the Attached Wall Section of Tower Crane

以C6513-6F塔式起重机附墙杆不同截面为目标,针对截面的不同对附墙杆所能达到的最大理论长度的影响进行研究。首先根据四种常用截面特点建立其力学模型,再由纵横弯曲的相关知识对各个模型的附墙杆内力函数解析式进行理论推导,并利用MATLAB软件对函数解析式进行可视化求解分析得到四种截面下附墙杆最大理论长度。最后得出各截面按力学性能从优到劣排列为:矩形桁架截面、三角形桁架截面、圆管型截面和方管型截面,为设计者和工程师对附墙杆截面的选择提供了理论支撑和新方法。

Taking the different sections of the attachment wall of the TC6513-6F tower crane as the object, the influence of the different section of the wall on the maximum theoretical length can be achieved. First establish the mechanical model according to the features of the four kinds of common sections, then by the related information of vertical and horizontal bending to deduce resolution function of the internal forces of the attached wall bars, and use MATLAB to analyze the resolution function. Finally, the section according to the mechanical properties arranged from good to bad: rectangular truss section, triangular truss section, circular tube section and square section, so that the designers and engineers have a theoretical support and a new method for the selection of the section of the attached wall bars.