Seismic Behaviour Of Steel Frame Structures With Elastomeric Hollow Rubber Rearings

Sunaryati, Jati (2009) Seismic Behaviour Of Steel Frame Structures With Elastomeric Hollow Rubber Rearings. Rekayasa Sipil, 5 (2). pp. 68-77. ISSN 1858-3695

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Abstract

Base Isolator has been used widely around the world in order to reduce damage in structures when earthquake occurs. The isolator should be simple, inexpensive, easy to install and effective in isolating the superstructure from the earthquake ground motions. For effective base isolator, the vertical stiffness should be flexible and the horizontal stiffness should be large. The displacement allows in base isolators will prevent the movement of the ground being transmitted to the structure, provide the necessary frequency to the structure and internal devices. Elastomeric rubber bearing is a type of base isolator consists of rubber and steel layers working together as a composite material to withstand vertical loads from the self weight of a building above it, and horizontal loads from earthquake. The elastomeric hollow rubber bearing is a type of base isolator which has been changed from the original base isolator. The base isolator has been studied using Finite Element Modeling. The aim of the design is to improve the performance by having larger vertical loads. The products still maintain its required horizontal stiffness, flexibility and stability to act as an isolator to the structure from the ground movement due to earthquakes. The base isolators investigated have been applied to the unbraced steel frame to investigate the seismic behaviour of the structure. The analysis takes into account the behaviour of the structure under seismic loading. Two buildings were designed and analyzed; one with conventional base isolator and one with a hollow base-isolated structure. Findings showed of a reduction in accelerations of the structure and increase in period and displacements. The finding shows that hollow base isolation with the same geometry behave better than the conventional base isolator.

Item Type:Article
Subjects:G Technology > GA Engineering (General). Civil engineering (General)
Divisions:Jurusan Teknik Sipil > Prog.Studi Teknik Sipil-D3 > Jurnal/Karya Ilmiah
ID Code:110
Deposited By:Mr. OP Repo-2 Puskom
Deposited On:06 Oct 2016 08:33
Last Modified:09 Nov 2016 13:50

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