Stiffness Test Results of Low Cost Rubber Base Isolator-Strip (LCRBI-S) as Base Isolation in Simple Houses

doi:10.47494/mesb.v40i.1877

DOI:

https://doi.org/10.47494/mesb.v40i.1877

Keywords:

Simple house building, Low Cost Rubber Base Insulator-Strip (LCRBI-S, Earthquake zone, Stiffness test

Abstract

Indonesia is one of the countries that has a very high seismic area. In the building design standards, several base isolation studies were carried out for residences. The use of base isolation with rubber as the main material and fiber material to strengthen vertical stiffness is applied in the Low Cost Rubber Base Insulator-Strip (LCRBI-S). The use of LCRBI-S with the aim of meeting the criteria of low cost and good performance. In this study uses natural rubber with a hardness of 35 Shore A. The type of fiberglass used as a reinforcing material is Net. Using Chemlok matrix as a fiberglass composite forming. Dimensions LCRBI-S is a square type with a simple housing service load. The stages of testing carried out on the test object include Vertical Stiffness Test end Horizontal Stiffness Test. The results of testing the stiffness value of LCRBI-S samples 1 and 2 are greater than samples 3 and 4, this is because the number of layers of fiberglass reinforcement is more in samples 1 and 2. So to increase the stiffness value of LCRBI-S can be done by increasing the number the reinforcement layer.

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