不同参数对轻钢-泡沫混凝土组合墙体力学性能影响研究  

STUDY ON THE INFLUENCE OF DIFFERENT PARAMETERS ON THE MECHANICAL PROPERTIES OF LIGHT STEEL-FOAMED CONCRETE COMPOSITE WALL

作　　者：刘殿忠[1] 李红现 武丝莹 LIU Dianzhong;LI Hongxian;WU Siying(School of Civil Engineering,Jilin Jianzhu University,Changchun 130118,China;Northwest Branch of China Construction Eighth Engineering Bureau,Xi’an 710065,China)

机构地区：[1]吉林建筑大学土木工程学院,长春130118 [2]中建八局西北分公司,西安710065

出　　处：《低温建筑技术》2020年第12期34-39,共6页Low Temperature Architecture Technology

基　　金：国家自然科学基金(51378238)。

摘　　要：文中采用ABAQUS有限元软件对轻钢-泡沫混凝土组合墙体进行模拟分析,为探讨轴压比、横向拉结条、剪跨比、泡沫混凝土密度、含钢率等控制因素对组合墙体的力学性能影响;在模拟过程中每一种控制因素均设置多组变量,达到了对比分析的结果,结果表明不同的控制变量对组合墙体的抗剪性能影响不同,其中,轴压比越大的承载力越高,其延性会有所降低;横向拉结条间距越小,墙体整体承载性能就会越好,抗剪承载力就会越高,延性变形能力就会越大;随着剪跨比的增大,墙体承载性能会相应的减小,但是延性变形能力有所提高;随着泡沫混凝土密度的增加,墙体的整体承载性能和和延性变形能力逐渐提高;含钢率高的,墙体其整体承载性能与延性变形能力会有所提高。In this paper,ABAQUS finite element software is used to simulate and analyze the combined wall of light steel and foamed concrete.The purpose is to discuss the influence of control factors such as axial compression ratio,transverse pull bar,shear span ratio,density of foamed concrete and steel ratio on the mechanical properties of the combined wall.In the simulation process,multiple groups of variables were set for each control factor to achieve the results of comparative analysis.The results show that different control variables have different influences on the shear performance of the composite wall.Among them,the higher the axial pressure ratio is,the higher the bearing capacity will be,but the ductility will be reduced.Others,the smaller the distance between the transverse ties,the better the overall bearing capacity of the wall,the higher the shear capacity,and the greater the ductile deformation capacity.With the increase of the shear span ratio,the bearing capacity of the wall decreases,but the ductile deformation capacity increases.With the increase of the density of foamed concrete,the overall bearing capacity and ductile deformation capacity of the wall are gradually improved.With high steel content,the overall bearing capacity and ductile deformation capacity of the wall will be improved.

关 键 词：轴压比 横向拉结条 剪跨比 泡沫混凝土密度 含钢率 

分 类 号：TU317[建筑科学—结构工程]