预制轻型楼梯选型及静载试验研究  

Research on Type Selection and Static Loading Test of Lightweight Assembled Stairs

作　　者：李娜 徐其功 黄丽萍 魏偲 LI Na;XU Qi-gong;HUANG Li-ping;WEI Si(Jianke Architectural Design Institute of Guangdong Co.Ltd.,Guangzhou 510010,China;Foshan Jian Zhuang Construction Technology Co.Ltd.,Foshan 528000,China)

机构地区：[1]广东省建科建筑设计院有限公司,广州510010 [2]佛山建装建筑科技有限公司,广东佛山528000

出　　处：《工程建设与设计》2021年第15期16-18,40,共4页Construction & Design for Engineering

摘　　要：装配式住宅建筑中,预制钢筋混凝土楼梯构件,采用传统的板式做法,因其自重较大而给现场吊装带来负担,特别是住宅建筑的剪刀梯。论文对常规层高3 m的住宅项目预制楼梯进行了减重研究,选用双梁+薄板的做法,并利用现有材料在踏步中增设减重空腔。对减重后的楼梯进行结构性能检验,验证减重方案的可行性。检验结果表明,楼梯裂缝、挠度及承载力均满足要求。Among elements of an assembled residential building,the burden of in-situ hoisting is commonly found in precast reinforced concrete staircases,as they are,by convention,of the inclined slab type and be heavy in self-weight.This issue is even pronounced for scissor ladder in residential properties.In this paper,a study of weight reduction for prefabricated stairs in residential project with a height of 3 m is presented,in which the precast stairs are designed with side-stringer beams and thin slab,and steps with additional cavity by utilizing off-the-shelf products.The practicality of the proposed weight reduction manner is examined through experimental evaluation of structural performance of lightweight assembled stairs.The result shows that such design fulfills design-code limits on cracking,deflection,and load-bearing capacity.

关 键 词：装配式 预制楼梯 减重 结构性能检验 

分 类 号：TU229[建筑科学—建筑设计及理论] TU3173