高性能钢应用对钢-混凝土组合柱抗震性能影响  

EFFECT OF HIGH-STRENGTH STEEL ON SEISMIC BEHAVIOR OF STEEL REINFORCED CONCRETE COLUMN

作　　者：杨怡亭 侯兆新[2] 龚超[2,3] 王燕 YANG Yiting HOU Zhaoxin GONG Chao WANG Yan(School of Civil Engineering, Qingdao Technological University, Qingdao 266033, China Central Research Institute of Building and Construction Co. Ltd, MCC, Beijing 100088, China National Engineering Research Center for Steel Construction, Beijing 100088, China)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266033 [2]中冶建筑研究总院有限公司,北京100088 [3]国家钢结构工程技术研究中心,北京100088

出　　处：《工业建筑》2017年第9期140-145,151,共7页Industrial Construction

基　　金：国家重点研发计划重点专项(2016YFC0701204);国家自然科学基金项目(51408620)

摘　　要：为研究高性能钢的应用对钢-混凝土组合柱抗震性能的影响,以实际工程构件的缩尺构件抗震性能试验结果为依据,建立Open SEES有限元分析模型。以型钢屈服强度、剪跨比、轴压比为研究参数,进行26个型钢混凝土压弯滞回构件有限元影响因素参数分析。结果表明:普通钢、高强钢SRC柱抗震性能变化趋势较为一致:剪跨比增大时,SRC柱承载力下降,延性性能先提高后降低;轴压比增加时,SRC柱承载力变化较小,延性性能显著降低;随着型钢屈服强度的提高,SRC柱极限承载力提高,但延性性能有下降趋势;为满足构件抗震性能,高强钢SRC柱剪跨比和轴压力限值应低于普通钢SRC柱。To study the effect of high-strength steel on seismic behavior of steel reinforced concrete column（ referred to as SRC column）,the small-scale specimens which were designed according to practical engineering were tested with cyclic loading. Based on the seismic behavior test results,a finite element model was established with Open SEES. 26 steel-reinforced concrete columns under cyclic loading were analyzed to investigate the effects of the yield strength,shear-span ratio and axial compression ratio on SRC columns. It showed that the change tendency of seismic behavior of SRC columns embedded with ordinary steel and high-strength steel was similarly. The bearing capacity of SRC column decreased with the increase of shear-span ratio,and the ductility increased first and then decreased. There was little change in the bearing capacity of SRC column when the axial compression ratio increased,but the ductility decreased significantly. With the increase of steel yield strength,the ultimate bearing capacity was improved,while the ductility had a tendency to decrease. In order to meet the seismic behavior requirements of members,the shear-span ratio and axial compression limit values of high-strength SRC columns should be lower than that of ordinary SRC columns.

关 键 词：高强度钢 组合柱 剪跨比 轴压比 Open SEES 

分 类 号：TU352.11[建筑科学—结构工程] TU398.9