（上海中船九院工程咨询有限公司， 上海 200063）

［摘要］建筑设计中特别是超高层建筑设计中，经常会遇到电梯地坑不落地而是吊挂在某层楼板之下，需要依据新版《建筑结构荷载规范》(GB 50009—2012)要求进行防止电梯偶然坠落荷载作用下的强度验算。结合工程实例对其进行归纳总结分析。

［关键词］悬空地坑； 偶然作用； 撞击荷载； 计算分析

中图分类号： TU312+.1 文献标识码： A文章编号：  1002-848X(2016)S1-0245-04

Some problems involved in calculation of the elevator suspended bottom

 slab resisting the accidental load

Shi Danwei

(Shanghai CSSC NDRI Engineering Consulting Co., Ltd., Shanghai 200063, China)

Abstract: The elevator supporting bottom slabs do not fall to the ground and often hung under a certain floor in the architectural design, especially for super high-rise buildings. In these circumstances, under the new version Load code for the design of building structures (GB 50009—2012), bearing strength calculation of the elevator suspended bottom slab resisting the accidental load is demanding. Combining practical engineering experience, outlines of calculation and design of the elevator suspended bottom slabs resisting the accidental load are analyzed and summarized.

Keywords: suspended bottom slab; accidental load; impact load; calculation and design