严寒地区开孔龙骨复合墙体受弯性能试验  

Experiment on Bending Behavior of Slotted Light Steel-Framed Composite Wall in Cold Areas

作　　者：李健辉 王英豪 魏顺利 敖斌[3] 杨志坚[1] LI Jianhui;WNAG Yinghao;WEI Shunli;AO Bin;YANG Zhijian(School of Civil Engineering,Shenyang Jianzhu University,Shenyang,China,110168;State Grid East Inner Mongolia Electric Power Supply Co.Ltd.,Hohhot,China,010020;Anhui Huadian Engineering Consultation&Design Co.Ltd.,Hefei,China,230022)

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168 [2]国网内蒙古东部电力有限公司,内蒙古呼和浩特001020 [3]安徽华电工程咨询设计有限公司,安徽合肥230022

出　　处：《沈阳建筑大学学报（自然科学版）》2021年第1期43-50,共8页Journal of Shenyang Jianzhu University：Natural Science

基　　金：“十三五”国家重点研发计划项目(2017YFC0703807)。

摘　　要：目的研究龙骨腹板开孔对龙骨复合墙体在风荷载作用下抗弯性能的影响,为其在我国严寒地区使用时提供设计参考。方法以龙骨厚度、龙骨腹板高度、龙骨腹板开孔排数及开孔长度为参数设计了8个试件,采用多点重物加载法对其进行抗弯性能试验,分析墙体的承载能力及破坏形态。结果分析得到各试件极限承载力,荷载-挠度曲线及典型试件的变形曲线。在研究范围内,增加开孔排数及开孔长度对开孔龙骨复合墙体承载力最大降低达35%、28.31%;增加龙骨厚度及龙骨腹板高度对其极限承载力最大提高达141%、52.45%。结论在正常使用荷载下,笔者设计墙体可以满足在我国严寒地区使用要求。In order to study the influence of the web-perforated on the flexural performance of slotted light steel-framed composite wall under wind load,so as to provide a design reference for its use in cold regions of China.Eight specimens are designed with parameters of stud metal thickness,web height,rows of slots,and the length of slots.and the flexural performance test is carried out on the multi-point weight loading method to analyze the bearing capacity and failure mode of the wall.The ultimate bearing capacity of each specimen is obtained by analysis force,load-deflection curve and deformation curve of typical specimens.In the research range,increasing the rows of slots,and the length of slots will weaken the bearing capacity by 35%and 28.31%.Increasing the stud metal thickness and web height will increase the bearing capacity by 141%and 52.45%at the maximum.Under normal using load defined in this article,the author designed walls can meet the requirements for using in cold area of China.

关 键 词：开孔龙骨复合墙体 堆载法 抗弯性能 破坏形态 极限承载力 

分 类 号：TU352.59[建筑科学—结构工程]