摘要
为获得新型泡沫混凝土轻钢龙骨复合墙体的抗侧刚度实用计算式,分别对DD-1、DD-1(D-300)、DD-2(D-400)三片墙体进行单调加载,对DZ-1(D-300)、DZ-2(D-400)两片墙体进行低周反复加载。对钢网片蒙皮板进行等效拉、压杆简化,对泡沫混凝土进行等效压杆简化。采用位移法对抗侧刚度的计算式进行推导,然后利用DD-1的试验结果对钢网片蒙皮轻钢龙骨复合墙体的抗侧刚度计算式进行验证,利用DD-1(D-300)、DD-2(D-400)、DZ-1(D-300)、DZ-2(D-400)的试验结果得到泡沫混凝土等效压杆的刚度修正系数,进而得到新型复合墙体的抗侧刚度计算式。与试验实测值比较表明,该计算式计算结果与试验结果吻合较好。
In order to obtain the practical calculation formula of resistance to lateral stiffness of a new type lightweight composite steel frame wall filled with foam concrete,the monotonic loading test was conducted on DD-1,DD-1(D-300)and DD-2(D-400)respectively and the quasi-static loading test was carried out on DZ-1(D-300)and DZ-2(D-400)repeatedly.The equivalent tension and compression bars were simplified for the steel mesh skin plate and the equivalent compression bar was simplified for the foam concrete.Using the displacement method to deduce the lateral stiffness calculation formula,and then the DD-1’s test results were used to validate the lateral stiffness calculation formula of lightweight composite steel frame wall covered with steel grid skin plate,using the test results of DD-1(D-300),DD-2(D-400),DZ-1(D-300),DZ-2(D-400)to obtain the stiffness correction factor of the equivalent compression bar of foam concrete,and then obtain the lateral stiffness calculation formula for the new composite wall.The results showed that the calculation results obtained by the displacement method were in good agreement with the test results.
作者
田稳苓
温晓东
TIAN Wenling;WEN Xiaodong(School of Civil Engineering and Transportation,Hebei University of Technology,Tianjin 300401,China)
出处
《工业建筑》
CSCD
北大核心
2020年第6期161-166,149,共7页
Industrial Construction
基金
天津市建设科技发展计划项目(ZTCC-1804215)。
关键词
复合墙体
抗侧刚度
泡沫混凝土
位移法
实用计算式
composite wall
resistance to lateral stiffness
foam concrete
displacement method
practical calculation formula
