装配式钢套管混凝土组合剪力墙竖向受拉-水平滞回荷载试验研究

PDF(3827 KB)

振动与冲击 ›› 2021, Vol. 40 ›› Issue (11) : 48-57.

论文

周靖1,2，李鹏1

作者信息 +

Tests for vertical tension and horizontal hysteretic load of assembled steel

ZHOU Jing1,2, LI Peng1

Author information +

文章历史 +

摘要

进行6个剪跨比为1.62的装配式钢套管混凝土(CFST)组合剪力墙试件的拟静力试验，研究钢管混凝土芯柱含量比、平面外偏心距、初始轴拉力对装配组合剪力墙抗震性能的影响，分析试件的破坏特征、滞回性能、变形和延性、承载力以及刚度退化和耗能。结果表明：装配组合试件的破坏形态整体为弯剪复合破坏，在竖向受拉-水平弯剪滞回复合作用下仍具有较高的承载力，滞回曲线饱满，变形和耗能较好，破坏时残余刚度大；剪切变形分量与总变形呈线性关系，约占总位移的21%；试件平均极限位移角1/42，平均延性系数5.0，表明组合剪力墙装配整体性较好。截面承载力参数分析表明抗剪承载力随钢管混凝土含量比增大而增大，而变形曲率随之减小；抗剪承载力随初始轴拉力和平面外偏心距增大而减小，适当的轴拉力能增大截面变形能力，但平面外偏心距对变形不利。

Abstract

Quasi-static tests of 6 assembled concrete-filled steel tube (CFST) composite shear wall specimens with shear span ratio of 1.62 were conducted to study effects of CFST core column content ratio, out of plane eccentricity and initial axial tension on the aseismic performance of assembled composite shear walls. Failure characteristics, hysteretic performance, deformation and ductility, load-bearing capacity, stiffness degradation and energy consumption of specimens were analyzed.The results showed that the overall failure mode of assembled composite shear wall specimens is bending-shear composite failure, they still have higher load-bearing capacity under the combined action of vertical tension and horizontal bending-shear hysteresis, the hysteretic curve is full, deformation and energy consumption are better, and their residual stiffness is large during failure; the shear deformation component is linearly related to the total deformation, it is about 21% of the total displacement; the average ultimate displacement angle of specimens is 1/42, their average ductility coefficient is 5.0, so the assembly integrity of composite shear walls is good; their shear-bearing capacity increases with increase in concrete-filled steel tube content ratio, while their deformation curvature decreases; their shear-bearing capacity decreases with increase in initial axial tension and out of plane eccentricity, the appropriate axial tension can increase the cross-section deformation capacity, but the out of plane eccentricity is unfavorable to deformation.

导出引用

周靖1,2，李鹏1. 装配式钢套管混凝土组合剪力墙竖向受拉-水平滞回荷载试验研究[J]. 振动与冲击, 2021, 40(11): 48-57

ZHOU Jing1,2, LI Peng1. Tests for vertical tension and horizontal hysteretic load of assembled steel[J]. Journal of Vibration and Shock, 2021, 40(11): 48-57

参考文献

［1］装配式混凝土建筑技术标准:GB/T 51231—2016［S］.北京:中国建筑工业出版社, 2017.
［2］薛伟辰, 古徐莉, 胡翔, 等.螺栓连接装配整体式混凝土剪力墙低周反复试验研究［J］.土木工程学报,2014,47:221-226.
XUE Weichen, GU Xuli, HU Xiang, et al.Experimental study of assembled monolithic concrete shear wall with bolted connection under low reversed cyclic loading［J］.China Civil Engineering Journal, 2014,47:221-226.
［3］KURAMA Y, SRITHARAN S, FLEISCHMAN R B, et al.Seismic-resistant precast concrete structures: state of the art［J］.Journal of Structural Engineering, 2018, 144(4): 03118001.
［4］周靖, 方小丹.一种预制装配式双钢管混凝土剪力墙及其装配方法:CN 201710373977.1［P］.2017-08-18.
［5］王翠坤, 田春雨, 肖从真.高层建筑中钢-混凝土混合结构的研究及应用进展［J］.建筑结构, 2011, 41(11): 28-33.
WANG Cuikun, TIAN Chunyu, XIAO Congzhen.Development of research and application of concrete-steel hybrid high-rise building structures［J］.Building Structure, 2011, 41(11):28-33.
［6］方小丹, 韦宏, 姚正钦.钢管高强混凝土剪力墙拉剪性能试验研究［J］.建筑结构学报, 2017, 38(3): 93-102.
FANG Xiaodan, WEI Hong, YAO Zhengqin.Experimental research on tension-shear behavior of shear wall with steel tube-confined high-strength concrete［J］.Journal of Building Structures, 2017, 38(3):93-102.
［7］任重翠, 肖从真, 徐培福.钢筋混凝土剪力墙拉剪性能试验研究［J］.土木工程学报, 2018, 51(4): 20-33.
REN Chongcui, XIAO Congzhen, XU Peifu.Experimental research on tension-shear behavior of shear wall with steel concrete［J］.China Civil Engineering Journal,2018, 51(4):20-33.
［8］JI X D, CHENG X W, XU M C.Coupled axial tension-shear behavior of reinforced concrete walls［J］.Engineering Structures, 2018, 167:132-142.
［9］ZHOU J, LI P, GUO N F.Seismic performance assessment of a precast concrete-encased CFST composite wall with twin steel tube connections［J］.Engineering Structures, 2020, 207: 110240.
［10］中华人民共和国住房和城乡建设部.建筑抗震试验规程:JGJ/T 101—2015［S］.北京: 中国建筑工业出版社, 2015.
［11］聂建国, 胡红松, 李盛勇, 等.方钢管混凝土暗柱内嵌钢板-混凝土组合剪力墙抗震性能试验研究［J］.建筑结构学报, 2013, 34(1): 52-60.

NIE Jianguo, HU Hongsong, LI Shengyong, et al.Experimental study on seismic behavior of steel plate reinforced concrete composite shear walls with square CFST concealed columns［J］.Journal of Building Structures, 2013, 34(1): 52-60.
［12］BEYER K, DAZIO A, PRIESTLEY M.Shear deformation of slender reinforced concrete walls under seismic loading［J］.ACI Structural Journal, 2011, 108(2): 167-177.
［13］PARK R, PRIESTLEY M J N, GILL W D.Ductility of square-confined concrete columns［J］.Journal of the Structural Division, 1982, 108(4):929-950.
［14］中华人民共和国住房和城乡建设部.高层建筑混凝土结构设计规程:JGJ 3—2010［S］.北京:中国建筑工业出版社, 2010.
［15］MANDER J B, PRIESTLEY M J N, PARK R.Theoretical stress-strain model for confined concrete［J］.Journal of Structural Engineering, 1988, 114(8): 1804-1826.
［16］ADEBAR P, IBRAHIM A M M, BRYSON M.Test of high-rise core wall: effective stiffness for seismic analysis［J］.ACI Structural Journal, 2007, 104(5): 549-559.