Open AccessExperimental and analytical studies on the compression properties of scrap tyre pad base isolators
Author(s) -
Ancy Mathew,
F. S. Firdouse,
R. Sajeeb
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/491/1/012026
Subject(s) - scrap , stiffness , finite element method , ultimate tensile strength , structural engineering , compression (physics) , materials science , composite material , engineering , metallurgy
Base isolation is one of the widely accepted seismic protection strategy. Scrap tyre pads have been identified to be suitable for the design of low-cost base isolation systems. The present study attempts to group scrap tyres of different brands based on their physical parameters and material properties. Five types of scrap tyres, from the same size group, have been identified in the present study. Tensile strength characteristics of scrap tyre pads were assessed by conducting experiments using ASTM D 638 specifications. The study investigates the compressive behaviour of seismic isolators made from different types of scrap tyre pads. Vertical stiffness and load bearing capacity of scrap tyre pad isolators were assessed for all the five types of scrap tyre pads. Three-dimensional finite element models of isolators were also developed and the response was found to be matching reasonably well with the experimentally observed response.