Journal of South China University of Technology(Natural Science) >
Study on the Improvement Effect of Rocking Wall Internal Force in Multiple Rocking Sections System and Analysis of Influencing Parameters
Received date: 2022-07-30
Online published: 2022-09-29
Supported by
the Natural Science Foundation of Fujian Province(2020J01480)
Using multiple rocking sections system can effectively reduce the internal force demand of the rocking wall itself while ensuring the improvement of structural deformation and seismic performance. This form also has the advantages of being easier to manufacture, transport, and install. In order to analyze the improvement effect of multiple rocking sections system on the internal force of the rocking wall, the paper derived a simplified calculation formula for the displacement of frame structure in multiple pinned rocking wall system and internal force of multiple pinned rocking wall by combining the characteristics of segmented rocking walls and different boundary conditions from rocking at base only system. And it further analyzed the influence of the rocking wall stiffness ratio and the number of rocking sections on the internal force of the rocking wall, which was compared with the corresponding situation of rocking at base only system. The research shows that the peak value and variation range of internal forces can be significantly reduced when setting multiple rocking sections over the height of rocking system in comparison to full slice rocking system. Under uniform distributed load, the distribution regularities of bending moment and shear force of each section of rocking wall in multiple rocking sections system is similar. Furthermore, the peak bending moment of the rocking wall in rocking at base only system is m2 times that of the rocking wall section in multiple rocking sections system, and the peak shear force of the rocking wall in rocking at base only system is m times that of the rocking wall section in multiple rocking sections system. However, when subjected to inverted triangle load, the bending moment and shear force of the upper rocking wall section are larger than those of the lower rocking wall section in multiple rocking sections system. The influence of stiffness ratio on rocking wall internal forces is obvious when the ratio varies in an appropriate scope of 1.0~5.0. When the stiffness ratio increases in this scope, the influence extent increases first and then decreases. When the stiffness ratio is not in this scope, whether too large or too small, the internal force of rocking wall is not sensitive to this parameter. At this point, the improvement effect of the rocking wall internal force by the stiffness ratio is not significant. The decreasing amplitude of rocking wall internal force decreases with the increase of the number of rocking sections, so when using multiple rocking sections system, the number of rocking sections should not be too large. In addition, the analysis also shows that the influence of the stiffness ratio and the number of rocking sections on the internal force of the rocking wall is relatively independent, and the influence effects are not coupled.
WANG Suguo, ZHONG Xupan . Study on the Improvement Effect of Rocking Wall Internal Force in Multiple Rocking Sections System and Analysis of Influencing Parameters[J]. Journal of South China University of Technology(Natural Science), 2023 , 51(4) : 21 -30 . DOI: 10.12141/j.issn.1000-565X.220481
| 1 | 曲哲,和田章,叶列平 .摇摆墙在框架结构抗震加固中的应用[J].建筑结构学报,2011,32(9):11-19. |
| QU Zhe, Akira Wada, YE Lieping. Seismic retrofit of frame structures using rocking wall system [J]. Journal of Building Structures,2011,32(9):11-19. | |
| 2 | 王素裹,吴敏 .框架-摇摆墙结构设计方法与研究现状分析[J].地震工程与工程振动,2020,40(2):154-163. |
| WANG Suguo, WU Min .Analysis of design method and research status of frame-rocking wall structure [J].Earthquake Engineering and Engineering Vibration,2020,40(2):154-163. | |
| 3 | 王嘉玮,周威 .后张预应力混凝土摇摆墙非线性分析[J].哈尔滨工业大学学报,2022,54(4):9-17. |
| WANG Jiawei, ZHOU Wei .Nonlinear analysis of post-tensioned prestressed concrete rocking wall [J].Journal of Harbin Institute of Technology,2022,54(4):9-17. | |
| 4 | 张文津,李国强 .消能摇摆墙-框架结构的易损性研究[J].地震工程与工程振动,2020,40(6):71-80. |
| ZHANG Wenjing, LI Guoqiang .Study on vulnerability of energy dissipation rocking wall-frame structure [J].Earthquake Engineering and Engineering Vibration,2020,40(6):71-80. | |
| 5 | 刘汉斌,陆晨,胡晓斌 .框架-自复位墙结构弹性地震反应分析的简化方法[J].工程力学,2022,39(1):100-107,117. |
| LIU Hanbin, LU Chen, HU Xiaobin .A simplified method for elastic seismic response analysis of frame self resetting wall structures[J].Engineering Mechanics,2022,39(1):100-107,117. | |
| 6 | 尚庆学,黄飒,高生 .装配式摇摆墙-框架结构抗震性能试验研究[J].建筑结构学报,2022,43(8):12-19,75. |
| SHANG Qing xue, HUANG Sa, GAO Sheng .Experimental study on aseismic performance of fabricated swing wall frame structure[J].Journal of Building Structure,2022,43(8):12-19,75. | |
| 7 | 吕西林,陈云,毛苑君 .结构抗震设计的新概念——可恢复功能结构[J].同济大学学报(自然科学版),2011,39(7):941-948. |
| LV Xilin, CHEN Yun, MAO Yuanjun .A new concept of structural seismic design-recoverable functional structure [J].Journal of Tongji University (Natural Science Edition),2011,39(7):941-948. | |
| 8 | 徐培蓁,韩真真,李燊 .框架-摇摆墙结构的刚度比对框架结构抗震性能的影响[J].结构工程师,2019,35(4):105-110. |
| XU Peizhen, HAN Zhenzhen, LI Shen .Influence of stiffness ratio of frame rocking wall structure on seismic performance of frame structure [J].Structural Engineer,2019,35(4):105-110. | |
| 9 | KHANMOHAMMADI M, HEYDARI S .Seismic behavior improvement of reinforced concrete shear wall buildings using multiple rocking systems [J].Engineering Structures,2015,100(1):577-589. |
| 10 | FENG Y L, WU J, MENG S P .Seismic performance analysis of continuously rocking wall-buckling restrained braced frames [J].Engineering Mechanics,2016,33(S1):90-94. |
| 11 | 杨树标,余丁浩,贾剑辉 等 .框架-摇摆墙结构简化计算方法研究[J].工程抗震与加固改造,2014,36(2):94-99,106. |
| YANG Shubiao, YU Dinghao, JIA Jianhui .Study on simplified calculation method of frame rocking wall structure [J].Engineering Seismic and Reinforcement Reconstruction,2014,36(2):94-99,106. | |
| 12 | 吴守君,潘鹏,张鑫 .框架-摇摆墙结构受力特点分析及其在抗震加固中的应用[J].工程力学,2016,33(6):54-60,67. |
| WU Shoujun, PAN Peng, ZHANG Xin .Analysis of mechanical characteristics of frame swing wall structure and its application in seismic reinforcement [J].Engineering Mechanics,2016,33(6):54-60,67. | |
| 13 | 崔国枝 .框架-摇摆墙结构动力响应与抗震性能研究[D].济南:山东大学,2019. |
| 14 | LIN C P, WIEBE R, BERMAN J W .Analytical and numerical study of curved-base rocking walls [J].Engineering Structures,2019,197(8):109397/1-16. |
| 15 | WIEBE L, CHRISTOPOULOS C .Mitigation of higher mode effects in base-rocking systems by using multiple rocking sections [J].Journal of Earthquake Engineering,2009,13(1):83-108. |
| 16 | 邱洪兴 .建筑结构设计.第1册,基本教程[M].北京:高等教育出版社,2013. |
/
| 〈 |
|
〉 |