摘要
防空地下室结构设计中,不同人防构件有不同的设计要点。人防顶板、底板、地下室外墙的等效静荷载受多种因素影响,人防底板的最小配筋率与控制工况有关。门框墙在设计初期需明确选用的图集和材质,计算时需根据门框墙的长度确定计算方法,并注意个别人防构件的土建预留洞口尺寸与人防门大小不同。临空墙和防护单元隔墙在设计时应考虑两侧墙体支承的有利作用,所有人防墙体均需满足受压构件最小配筋率的要求。人防楼梯需考虑恒荷载、活荷载、人防正面荷载、人防反面荷载的作用,并注意各种荷载的方向不同;可在梯井中布置混凝土墙以减小梯梁的跨度和截面尺寸。防倒塌棚架的截面尺寸和高度不宜过高,并应满足抗震规范的相关要求。
In the design of civil air defense basement structure,different civil air defense components have different design points.The equivalent static load of the roof,bottom and basement walls of the civil air defense is affected by many factors.The minimum reinforcement ratio of the civil air defense floor is related to the control conditions.At the initial stage of the design,the selected atlas and materials should be clearly defined for the door frame.The calculation method should be determined according to the length of the door frame during calculation.In individual cases,the size of the civil engineering reserved opening of civil air defense components is different from that of the air defense door.Blastproof partition walls and protective unit partition walls should be designed to consider the beneficial effects of the walls on both sides.All defense walls must meet the requirements of the minimum reinforcement ratio of compression members.The civil air defense stairs need to consider the dead load,live load,the front or back load of the air defense,and pay attention to the different directions of the four loads.Concrete walls can be arranged in the ladder shaft to reduce the span and cross-sectional size of the ladder beam.The cross-section size and height of the collapse-proof shed should not be too high,and should meet the relevant requirements of the seismic code.
作者
石光
邢万里
SHI Guang;XING Wanli(China Institute of Building Standard Design&Research,Beijing 100048,China)
出处
《建筑结构》
CSCD
北大核心
2020年第S02期107-111,共5页
Building Structure
关键词
防空地下室
门框墙
临空墙
防倒塌棚架
civil air defence basement
door frame
blastproof partition wall
collapse-proof shed
