摘要
为了更好地保障高层建筑的抗震安全性和稳定性,对高层建筑装配式剪力墙结构抗震性能进行研究。将框架结构剪力墙、全部预制装配式剪力墙和整体装配式双面叠合混凝土剪力墙作为研究对象,利用地震波加载装置模拟El-Centro波、Taft波、人工合成地震波的加载过程,在试件不同位置设置5个测点,每个测点上布设位移传感器、应变传感器、荷载传感器、加速度传感器、倾角仪等不同传感器,在地震波加载装置预加载成功的情况下进行试验。将裂缝最大宽度、变形量、耗能量、刚度、位移延性系数、承载力作为性能测试指标,收集剪力墙试件的实时形变、荷载、位移等数据,结合统计学理论、信息论、误差理论对试验数据进行处理后得到抗震性能试验结果。结果表明:相比于框架结构剪力墙、全部预制装配式剪力墙,整体装配式双面叠合混凝土剪力墙的裂纹数量较少;试件滞回曲线更加充实、连续,无明显的突变现象;最大裂缝宽度为0.4 mm,总形变量为1.6 mm,耗能量与刚度较高,位移延性系数在3~4之间,极限承载力可达934.9 kN。研究认为整体装配式双面叠合混凝土剪力墙具有更好的抗震性能,可以广泛应用至高层建筑领域。
To ensure the seismic safety and stability of high-rise buildings,this study investigates the seismic performance of prefabricated shear wall structures.Three types of shear walls(frame structure shear walls,fully prefabricated shear walls,and prefabricated monolithic double-skin composite concrete shear walls)were tested.A seismic wave loading device was utilized to simulate loading conditions of the El-Centro wave,Taft wave,and synthetic seismic waves.Five measurement points were set at the bottom,middle,and top of the specimens,each equipped with displacement sensors,strain sensors,load sensors,accelerometers,and inclinometers.After successful preloading,formal testing was conducted.Key performance indicators,including maximum crack width,deformation,energy dissipation,stiffness,displacement ductility coefficient,and bearing capacity,were monitored.Real-time data on the deformation,load,and displacement of specimens were collected and processed using statistical theory,information theory,and error theory to obtain seismic performance.Results indicate that,compared to frame structure shear walls and fully prefabricated shear walls,prefabricated monolithic double-skin composite concrete shear walls exhibit superior seismic performance:fewer cracks;fuller,continuous hysteretic curves with no abrupt changes;a maximum crack width of 0.4 mm and total deformation of 1.6 mm;higher energy consumption and stiffness;a displacement ductility coefficient between 3 and 4;and an ultimate bearing capacity of 934.9 kN.These findings suggest that the prefabricated monolithic double-skin composite concrete shear walls hold strong potential for application in high-rise buildings.
作者
王玉艳
樊志红
姚健
周建
WANG Yuyan;FAN Zhihong;YAO Jian;ZHOU Jian(Shanxi College of Applied Science and Technology,Taiyuan 030062,Shanxi,China;China Railway 17th Bureau Group Fifth Engineering Co.,Ltd.,Taiyuan 030032,Shanxi,China)
出处
《地震工程学报》
北大核心
2025年第4期832-841,850,共11页
China Earthquake Engineering Journal
基金
山西省高等学校教学改革创新项目(J20221342)
山西省高等学校教学改革创新项目(J2018229)。
关键词
高层建筑
装配式剪力墙
抗震性能
刚度
位移延性系数
high-rise buildings
prefabricated shear walls
seismic performance
stiffness
displacement ductility coefficient
