高压电缆隧道综合井内力计算研究

综合井是高压电缆隧道重要的组成部分,其结构设计计算常规按照井壁、内支撑和底板分别单独建模型计算,它忽视了结构整体性和轴力对结构作用的影响。该文介绍了采用"Midas"结构分析计算软件,建立不同的计算模型,分析综合井的井壁、内支撑和底板的受力情况,从而得出"板单元实体模型",建模较简单,并且其内力计算结果与空间实体模型更相符,修正了目前综合井设计计算存在的不足之处,可供相关工程技术人员参考。

Study on Inner Force Calculation of Engineering Shaft for High-voltage Cable Tunnel

Then engineering shaft is an important composed part o the high-voltage cable tunnel.Its structural design calculation is conventionally carried out separately by setting up the models of shaft wall,inner brace and bedplate.It ignores the influence of structural integration and axial force on the structural action.The article introduces the use of "Midas" structural analysis calculation software,the establishment of the different calculation models,and the analysis of the stresses of the shaft wall,inner brace and bedplate of the engineering shaft so as to show that the modeling of "plate element hardware model" is simpler,and its inner force calculation result is more correspond with the spatial hardware model,which amends the shortage existing in the present design calculation of engineering shaft and can be referred for the relative engineering technical members.