不锈钢芯板T形墙双向压弯性能研究  

Research on Mechanical Properties of T-Shaped Wall with Stainless Steel Core Plate Under Biaxial Bending and Compression

作　　者：舒兴平[1] 黄鑫源 王元清[2] SHU Xingping;HUANG Xinyuan;WANG Yuanqing(Steel Structural Institute of Civil Engineering College,Hunan University,Changsha 410082,China;School of Civil Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]湖南大学土木工程学院钢结构研究所,长沙410082 [2]清华大学土木水利学院,北京100084

出　　处：《工业建筑》2022年第6期100-107,共8页Industrial Construction

摘　　要：为了探究不锈钢芯板T形墙在承受双向压弯荷载作用下的力学性能。首先,使用ABAQUS建立了12组不同的有限元模型进行对比分析,通过对模型的非线性分析,研究其在各个阶段的受力特征和破坏机理,然后通过变化面板厚度、墙肢高宽比、侧板厚度、芯管厚度以及轴压比和偏心角度等参数,分析这些变量对T形墙压弯承载力的影响,得出面板厚度和轴压比是最主要的影响因素。最后将数值分析结果所得到的M_(x)、M_(y)归一化后,拟合出不同轴压比下M_(x)、M_(y)的相互作用方程。In order to explore the mechanical properties of T-shaped wall with stainless steel core plate under biaxial bending and compression,first of all,12 groups of ABAQUS finite element models were designed for comparative analysis,the mechanical characteristics and failure mechanism in earch stage were studied,and then the influence of 6 variables on the flexural bearing capacity of T-shaped wall was analyzed by changing parameters such as the thickness of the panel,the aspect ratio of wall limb,the thickness of side plate,the thickness of the core tube,axial compression ratio and eccentric angle,it was concluded that the panel thickness and axial compression were the most significant factors.Finally,the obtained M_(x) and M_(y) were normalized to fit the interaction equations of M_(x) and M_(y) under different axial compression ratios.

关 键 词：不锈钢芯板T形墙 双向压弯 局部屈曲 轴压比 相互作用方程 

分 类 号：TU392[建筑科学—结构工程]