内置角钢钢骨-钢管再生混凝土柱偏压性能有限元分析  

Finite Element Analysis of Bias Performance of Recycled Concrete Columns with Built-in Angle Steel Bones and Steel Tubes

作　　者：陈思远 刘猛 杨博 黄磊 CHEN Si-yuan;LIU Meng;YANG Bo;HUANG Lei(School of Civil and Architectural Engineering,Liaoning University of Technology,Jinzhou 121001,China;Shenyang Huaxin International Engineering Design Consulting Co.,Ltd.,Shenyang 110016,China)

机构地区：[1]辽宁工业大学土木建筑工程学院,辽宁锦州121001 [2]沈阳华新国际工程设计顾问有限公司,辽宁沈阳110016

出　　处：《辽宁工业大学学报(自然科学版)》2024年第6期359-364,共6页Journal of Liaoning University of Technology(Natural Science Edition)

摘　　要：为研究内置角钢钢骨-钢管再生混凝土柱的偏压性能,通过有限元软件ABAQUS对22根柱进行数值模拟分析。分析组合柱的荷载-跨中挠度曲线,研究再生混凝土强度、再生骨料取代率、长细比、钢骨尺寸、偏心距等参数对组合柱偏压性能的影响规律。结果表明,增大偏心距,组合柱偏压承载力和抗变形能力急剧下降,但延性会提高;增大长细比,发现组合柱的偏压承载力、延性、抗变形能力均出现下降;提高再生混凝土强度,可以有效地提升组合柱的偏压承载力,但延性会降低;增加钢骨尺寸,发现组合柱的偏压承载力、延性、抗变形能力均出现提升;提高再生骨料取代率对组合柱的延性影响较小,但会使偏压承载力降低,侧向变形增大。In order to study the bias performance of recycled concrete columns with built-in angle steel bone and steel tube,the finite element software ABAQUS was used to numerically simulate 22 columns.The load-span deflection curve of composite column is analyzed,and the influence of recycled concrete strength,recycled aggregate replacement rate,slenderness ratio,steel bone size,eccentricity and other parameters on the bias performance of composite column is studied.The results show that with the increase of eccentricity,the bias bearing capacity and deformation resistance of the composite column decrease sharply,but the ductility increases.With the increase of slenderness ratio,it is found that the bias bearing capacity,ductility and deformation resistance of the composite column all decrease.Increasing the strength of recycled concrete can effectively increase the partial bearing capacity of composite columns,but the ductility will be reduced.With the increase of the size of the steel bones,it is found that the bias bearing capacity,ductility and deformation resistance of the composite column are improved.Increasing the regenerated aggregate substitution rate has little effect on the ductility of composite columns,but it reduces the bias bearing capacity and increases the lateral deformation.

关 键 词：再生混凝土 偏压性能 角钢钢骨 有限元分析 

分 类 号：TU398[建筑科学—结构工程]