摘要
传统不锈钢桁架连接件腹杆倾斜角度为22°,为确定装配式夹心保温板桁架连接件腹杆最佳倾斜角度,本文利用ABAQUS有限元软件模拟了4类典型夹心板在脱模、运输及正常使用工况下连接件和外叶板的受力情况;在连接件用量保持不变的情况下,分析了上述工况中腹筋倾斜角度在22°~90°范围内连接件和外叶板应力的变化规律。结果表明:随着腹杆倾斜角度增大,连接件腹杆应力值在脱模工况中逐渐减小,而在运输和正常使用工况中呈现先减小后增大的趋势;外叶板混凝土应力值在上述工况中均呈现减小趋势,并且在脱模工况中最大;综合分析3种工况下连接件腹杆和外叶板混凝土应力,倾斜角度在56°~68°的范围内时连接件受力性能达到最优,实际应用中,桁架连接件腹杆倾斜角建议取为60°。
The inclination angle of the web member for traditional stainless steel truss connector is 22 degrees.In order to determine the optimal inclination angle of the web member for fabricated sandwich plate truss connector,ABAQUS finite element software is used to simulate the stress of connectors and outer layer panels of four types of typical sandwich panels under demoulding condition、transportation condition and normal use condition in this paper.When the amount of connectors remains unchanged,this paper analyzes the stress variation law of the connectors and outer layer panels within the range of 22~90 degrees of the inclined angle of the web member under three working conditions.The results show that with the increase of the inclination angle,the stress value of the truss connector gradually decreases in the demolding condition,but firstly decreases and then increases in the transportation condition and the normal use condition.The stress value of the outer layer panels shows a decreasing trend in almost three working conditions,and almost reaches the maximum value in the demoulding condition.Comprehensively analyzed the stress value of the connectors and outer layer panels under the three working conditions,the mechanical performance of connectors is optimal when the inclination angle is in the range of 56~68 degrees.The inclination angle for web member of truss connector is recommended to be 60 degrees in practical application.
作者
徐楠
刘超
杨浪
杨虎林
冯傲松
陈坷
XU Nan;LIU Chao;YANG Lang;YANG Hulin;FENG Aosong;CHEN Ke(Southwest Jiaotong University,Chengdu 610031,China;Chengdu Sixth Construction Engineering of CDCEG,Chengdu 610074,China)
出处
《建筑结构》
CSCD
北大核心
2022年第S01期1159-1164,共6页
Building Structure
关键词
夹心板
桁架连接件
倾斜角度
腹杆
外叶板
sandwich panel
truss connector
inclination angle
web member of truss
outer layer panel
作者简介
第一作者:徐楠,硕士研究生,主要从事建筑工业化研究,Email:nxu@my.swjtu.edu.cn。
