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地铁车站设计中,柱网的布置对整个车站的主体结构受力及车站内部设备、机房等平面布置具有重要影响。由于地铁车站结构力学性态复杂,地下结构的计算目前停留在软件计算阶段,尚未有关于柱轴力的理论解析式,但软件计算结果难以明确荷载传递方式、分析影响柱轴力的因素。本文基于对框架结构的力学解析,从荷载传递的角度出发,分析了影响柱轴力的因素及其影响程度,得到了柱轴力的简易解析式。其分析结论明确了荷载传递方式,对于地铁车站的设计具有重要的理论指导意义和实际使用价值。
Subway station design, column network layout of the main station of the entire station by the force and the station equipment, computer room and other layout has an important impact. Due to the complicated mechanical structure of metro station structure, the calculation of underground structures is currently in the software calculation stage. There is no theoretical analytical solution for column axial force. However, it is difficult to determine the load transfer method and analyze the factors affecting column axial force. Based on the mechanics analysis of the frame structure, this paper analyzes the factors affecting the column axial force and the degree of influence from the point of view of load transfer, and obtains a simple analytic formula for the axial force of the column. The conclusion of the analysis shows that the load transfer mode has an important theoretical and practical value for the design of metro stations.