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对于人防工程设计中关于门框墙结构的计算,现有规范和设计手册主要提及两种方法,悬挑构件法和增设加强梁(柱)法,目前,各相关文献和结构计算软件都只提供了悬挑构件法的计算方法,对增设加强梁(柱)法并无明确说明。但在很多情况下,悬挑构件法无法适用于人防工程设计。由于增设加强梁(柱)法涉及较多问题,文中对该方法进行了系统地讲解。针对高抗力门框墙结构计算,笔者提出了另一种实用的计算方法——梁板分荷法,通过理论探讨和工程计算比较,表明其具有经济适用性和简便可行性。
For civil air defense engineering design on the calculation of the doorframe structure, the existing specification and design manual mainly refers to two methods, the cantilever method and the additional beam (column) method, at present, all relevant literature and structural calculation software only provide The calculation method of cantilever component method, there is no clear explanation for the additional beam (column) method. However, in many cases, the overhanging component method can not be applied to civil air defense engineering design. Due to the additional beam (column) method involves more problems, the paper systematically explain the method. For the calculation of high resistance door frame structure, the author put forward another practical calculation method - beam plate load method, which is proved to be economically applicable and simple and feasible by theoretical discussion and engineering calculation.