Shaking Table Tests on Dynamic Characteristics of Pile-Soil-High Rise Structure System on Soft Soil Foundation
CSTR:
Author:
Affiliation:

1.College of Civil Engineering, Tongji University, Shanghai 200092, China;2.College of Civil Engineering, Henan University of Technology, Zhengzhou 450001, China

Clc Number:

TU318

  • Article
  • | |
  • Metrics
  • |
  • Reference [16]
  • |
  • Related
  • |
  • Cited by
  • | |
  • Comments
    Abstract:

    Shaking table tests are designed and performed on high-rise frame structures considering pile-soil dynamic interaction system and a frame structure model on fixed-base condition with the 1:6 scaling factor in this paper to study the influence mechanism of pile-soil interaction on the dynamic characteristics of high-rise structures on soft soil foundation. The layered shear box is used to simulate the boundary of soil. The mixture of sawdust and sand is adopted as the foundation soil, and the superstructure is a 12-story reinforced concrete frame structure. The foundation adopts the 3 × 3 pile group foundation. By comparing the structural dynamic characteristics of the soil structure interaction (SSI) frame model and the fixed-base model, the influence law of the SSI effect on the high-rise frame structure in this test is summarized. The soil has a significant filtering effect on ground motion. It mainly amplifies the vibration near the fundamental frequency of the soil, and the amplification amplitude decreases with the strengthening of ground motion. The soil amplifies the peak acceleration in minor earthquakes and reduces the peak acceleration in major earthquakes. The frequency of the structure in the SSI system decreases and the damping ratio increases. The structural damage in the SSI system appears later and develops more slowly than that of the fixed-base structure. At the frequency of soil, the vibration mode of SSI system is significantly affected by the soil, and its vibration mode amplitude distribution is obviously different from that of the fixed-base structure. The vibration mode of the SSI system far away from the soil frequency is consistent with that of the fixed-base model.

    Reference
    [1] DURANTE M G, DI SARNO L, MYLONAKIS G, et al. Soil-pile-structure interaction: Experimental outcomes from shaking table tests [J]. Earthquake Engineering & Structural Dynamics, 2016, 45(7): 1041.
    [2] 施卫星, 王梁坤, 王洪涛, 等. 自调频调谐质量阻尼器及其减振性能试验[J]. 同济大学学报(自然科学版), 2018, 46(6): 751.SHI Weixin, WANG Liangkun, WANG Hongtao, et al. Experimental study of effect of controlling vibration of self-adjustable tuned mass damper [J]. Journal of Tongji University (Natural Science), 2018, 46(6): 751.
    [3] 李昌平, 刘伟庆, 王曙光, 等. 软土地基上高层隔震结构模型振动台试验研究[J]. 建筑结构学报, 2013, 34(7): 72.LI Changping, LIU Weiqing, WANG Shuguang, et al. Shaking table test on high-rise isolated structure on soft soil foundation [J]. Journal of Building Structures, 2013, 34(7): 72.
    [4] 李培振, 程磊, 吕西林, 等. 可液化土?高层结构地震相互作用振动台试验[J]. 同济大学学报(自然科学版), 2010, 38(4): 467.LI Peizhen, CHENG Lei, LU Xilin, et al. Shaking table testing on high-rise buildings considering liquefiable soi-l structure interaction [J]. Journal of Tongji University (Natural Science), 2010, 38(4): 467.
    [5] 蒋玉敏, 钱德玲, 张泽涵, 等. 框架?核心筒结构与地基基础动力相互作用振动台试验研究[J]. 建筑结构学报, 2016, 37(2): 34.JIANG Yuming, QIAN Deling, ZHANG Zehan, et al. Shaking table tests on dynamic interaction of frame-core tube structure and subgrade [J]. Journal of Building Structures, 2016, 37(2): 34.
    [6] 于旭, 庄海洋, 朱超, 等. 软夹层地基上多层隔震结构模型振动台试验研究[J]. 振动与冲击, 2015, 34(242): 104.YU Xu, ZHUANG Haiyang, ZHU Chao, et al. Shaking table tests on the modal of a multi-story isolated structure on the ground with softer interlayer [J]. Journal of Vibration and Shock, 2015, 34(242): 104.
    [7] 赵学斐, 王曙光, 王海, 等. 考虑土?结相互作用的黏滞阻尼器减震结构振动台试验研究[J]. 振动与冲击, 2017, 36(13): 146.ZHAO Xuefei,WANG Shuguang,WANG Hai,et al. Shaking table tests for structures with viscous dampers considering SSI effect [J]. Journal of Vibration and Shock, 2017, 36(13): 146.
    [8] 潘旦光, 高莉莉, 靳国豪, 等. 结?土?结构体系动力特性的模型实验[J]. 北京科技大学学报, 2014, 36(12): 1720.PAN Danguang, GAO Lili, JIN Guohao, et al. Model test of the dynamic characteristics of a structure-soil-structure system [J]. Journal of University of Science and Technology Beijing, 2014, 36(12): 1720.
    [9] 王海, 鞠三, 刘伟庆, 等. 土?结构相互作用对消能减震结构动力特性的影响[J]. 南京工业大学学报(自然科学版), 2012, 34(5): 1.WANG Hai, JU San, LIU Weiqing, et al. Effects of soil-structure interaction on dynamic characteristics of energy dissipating structures [J]. Journal of Nanjing University of Technology (Natural Science Edition), 2012, 34(5): 1.
    [10] JABARY R N, MADABHUSHI G S P. Tuned mass damper positioning effects on the seismic response of a Soil-MDOF-Structure system [J]. Journal of Earthquake Engineering, 2018, 22(2): 281.
    [11] FORCELLINI D. Analytical fragility curves of shallow-founded structures subjected to soil-structure interaction (SSI) effects [J]. Soil Dynamics and Earthquake Engineering, 2021(11). DOI: 10.1016/j.soildyn.2020.106487.
    [12] MA X H, CHENG Y M, AU S K, et al. Rocking vibration of a rigid strip footing on saturated soil [J]. Computers and Geotechnics, 2009, 36(6): 928.
    [13] 楼梦麟, 王文剑, 朱彤,等. 桩基础上结构TMD控制的振动台模型试验研究[J]. 同济大学学报(自然科学版), 2001, 29(6): 636.LOU Menglin, WANG Wenjian, ZHU Tong, et al. Shaking table model test for TMD control of structure resting on pile-foundation [J].Journal of Tongji University(Natural Science), 2001, 29(6): 636.
    [14] YANG J P, LI P Z, LU Z. Large-scale shaking table test on tall buildings with viscous dampers considering pile-soil-structure interaction [J]. Engineering Structures, 2020, 220, 110960.
    [15] ABD-ELHAMED A, MAHMOUD S. Simulation analysis of TMD controlled building subjected to far- and near-fault records considering soil-structure interaction [J]. Journal of Building Engineering, 2019, 26: 100930.
    [16] YANG J P, LU Z, LI P Z. Large-scale shaking table test on pile-soil-structure interaction on soft soils [J]. The Structural Design of Tall and Special Buildings, 2019, 28(18). DOI: 10.1002/tal.1679.
    Related
    Cited by
Get Citation

YANG Jinping, LI Peizhen, WU Wen. Shaking Table Tests on Dynamic Characteristics of Pile-Soil-High Rise Structure System on Soft Soil Foundation[J].同济大学学报(自然科学版),2023,51(4):578~587

Copy
Share
Article Metrics
  • Abstract:
  • PDF:
  • HTML:
  • Cited by:
History
  • Received:October 15,2021
  • Online: April 26,2023
Article QR Code