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Study on Seismic Response Characteristics and Design Parameters of Composite Isolation System for Rural Buildings

  • Kang Yuan
  • Jiaming Zhang
  • Junlin Guo
  • Wan Tian
Structural Engineering
  • 2 Downloads

Abstract

The seismic capacity of rural buildings is low and effective execution of the traditional seismic measures is difficult. Therefore, a new type of composite isolation system, which is suitable for rural buildings in frozen earth regions, is proposed in this work. The design parameters and dynamic response characteristics of this system under rare earthquakes were investigated via systematic dynamic elastic-plastic time-history analyses performed on four different types of models. These models were established by the finite element software ABAQUS, and a composite isolation structure, sliding isolation structure, sand cushion isolation structure, and traditional masonry structure were considered. Afterward, the seismic response characteristics and design parameters of the composite isolation system were obtained by comparing the dynamic response analysis results (acceleration, displacement, and bottom shearing force) of each model. The best isolation effect was realized for the composite isolation system, where the seismic energy can be effectively absorbed and the impact of frost heaving on buildings can be eliminated. Furthermore, this effect will improve with decreasing friction coefficient of the sliding layer and increasing seismic intensity. Based on the preset isolation rate of 40%, the design values of the friction coefficient were determined to be 0.1–0.35, which are appropriate for high-seismic-intensity regions.

Keywords

composite isolation system rural buildings dynamic response analysis design parameter rare earthquake 

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Copyright information

© Korean Society of Civil Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Kang Yuan
    • 1
  • Jiaming Zhang
    • 1
  • Junlin Guo
    • 1
  • Wan Tian
    • 2
  1. 1.College of Hydraulic and Civil EngineeringShihezi UniversityShiheziChina
  2. 2.School of Civil EngineeringChongqing UniversityChongqingChina

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