摘要
为研究带新型装配式双叶减震墙板(MDW)结构的抗震性能,采用ETABS中的Takeda非线性滞回单元,给出了一种MDW的简化数值模型,并与已有试验数据对比验证,确定了MDW数值模型合理性。基于此简化数值模型,建立了带MDW的4层结构模型,研究了其整体抗震性能。研究结果表明:与原结构相比,带MDW的结构体系具有较好的抗震性能,同时MDW的滞回曲线饱满,附加给结构的刚度较小,能有效避免传统墙板附加刚度效应产生的不利影响;MDW对降低结构层间位移角有积极的作用,结构第一层衰减幅度最大;结构层剪力得到了一定程度降低,弱轴方向层剪力降低最明显。在MDW工程设计中,应合理布置MDW在结构不同层间的数量和X、Y轴上的数量,避免薄弱层偏移或扭转效应对结构产生的不利影响。
For researching the seismic performance of the MDW which installed in structure,a MDW simplified mechanical model is founded using the Takeda nonlinear hysteresis element in ETABS.Based on this mechanical model,a structure with MDW was established to study the overall seismic performance of MDW.The results show that compared with the original structure,the structure with MDW own good performance,the MDW hysteresis curve is full and the additional stiffness is small,effectively avoiding the adverse effects caused by the additional stiffness effect of traditional wall panels;MDW can reduce the displacement,wherein the first floor has the biggest reduction rate;the structural layer shear force is fixed.The degree of reduction is reduced,and the shearing force of the weak axial direction layer is more obviously.In the MDW engineering design, the quantity of MDW between different layers of the structure and the quantity on X and Y axis should be reasonably arranged to avoid the adverse influence of weak layer offset or torsion effect on the structure.
作者
韩子英
刘慧
蓝丽玉
龚晨
吴从晓
徐虎
HAN Zi-ying;LIU Hui;LAN Li-yu;GONG Chen;WU Cong-xiao;XU Hu(Guangzhou Architectural Engineering Design Institute Co.,Ltd.,Guangzhou 510045;Guangzhou Guangjian Construction Engineering Testing Center Co.,Ltd,Guangzhou 510699;Guangzhou Shengtong Quality Testing of Construction Co,.Ltd.,Guangzhou 510075;Guangzhou University,Guangzhou 510006)
出处
《广州建筑》
2022年第5期1-7,共7页
GUANGZHOU ARCHITECTURE
基金
广州市建筑集团有限公司科技计划项目([2019]-KJ021、[2020]-KJ012)。
关键词
装配式
混凝土结构
双叶减震墙板
抗震性能
assembled
concrete structure
double leaf wallboard
seismic performance
