Behavior of a spherical deformable rolling seismic isolator for lightweight residential construction


Cilsalar H. , Constantinou M. C.

BULLETIN OF EARTHQUAKE ENGINEERING, vol.17, no.7, pp.4321-4345, 2019 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 17 Issue: 7
  • Publication Date: 2019
  • Doi Number: 10.1007/s10518-019-00626-z
  • Title of Journal : BULLETIN OF EARTHQUAKE ENGINEERING
  • Page Numbers: pp.4321-4345

Abstract

This paper presents a study for the development and qualification of a practical low-cost seismic isolation system for lightweight residential construction. The study concludes that single concave rolling isolators cast in high strength concrete with a deformable steel-reinforced plastic rolling ball and a displacement restraint system represent a promising isolation system. A full size isolator suitable for application to typical reinforced concrete houses in Turkey was built and tested. The vertical stiffness, creep characteristics under gravity load and the lateral force-displacement characteristics have been studied. Models for behavior have been developed and validated. These models are useful for response history analysis in commonly available commercial and open source analysis software.