A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Performance assessment of buildings seismically isolated with scrap tire rubber pad isolators
Automobile tires are made by vulcanizing natural or synthetic rubber with high-strength steel cords. The scrap tire rubber pad, called the STRP isolator, is made from scrap automobile tires. It is expected to be a low-cost isolator and have mechanical properties similar to widely used elastomeric bearings. This article investigated the seismic protection effectiveness of the STRP base isolation system in comparison with the conventional steel-reinforced elastomeric isolation method. A hypothetical four-story building is modelled with four different sub-structure systems: (i) bonded STRP isolator (B-STRP), (ii) unbonded STRP isolator (U-STRP), (iii) steel-reinforced elastomeric isolator (SREI), and (iv) fixed-base system (FB), and is analyzed under the designed based earthquake (DBE) and maximum considered earthquake (MCE) acceleration. The SREI and STRP isolators are assumed to be geometrically comparable, and their fidelity is verified by comparing the numerical results with the past experimental results. The finding reveals that the seismic performance of the B-STRP base-isolated building is similar to that of the SREI system. The seismic performance of the U-STRP base-isolated building was found to be superior to that of the SREI, B-STRP, and FB base conditions. The U-STRP isolators are stable at the DBE level input while there is slippage at the MCE level input.
Performance assessment of buildings seismically isolated with scrap tire rubber pad isolators
Automobile tires are made by vulcanizing natural or synthetic rubber with high-strength steel cords. The scrap tire rubber pad, called the STRP isolator, is made from scrap automobile tires. It is expected to be a low-cost isolator and have mechanical properties similar to widely used elastomeric bearings. This article investigated the seismic protection effectiveness of the STRP base isolation system in comparison with the conventional steel-reinforced elastomeric isolation method. A hypothetical four-story building is modelled with four different sub-structure systems: (i) bonded STRP isolator (B-STRP), (ii) unbonded STRP isolator (U-STRP), (iii) steel-reinforced elastomeric isolator (SREI), and (iv) fixed-base system (FB), and is analyzed under the designed based earthquake (DBE) and maximum considered earthquake (MCE) acceleration. The SREI and STRP isolators are assumed to be geometrically comparable, and their fidelity is verified by comparing the numerical results with the past experimental results. The finding reveals that the seismic performance of the B-STRP base-isolated building is similar to that of the SREI system. The seismic performance of the U-STRP base-isolated building was found to be superior to that of the SREI, B-STRP, and FB base conditions. The U-STRP isolators are stable at the DBE level input while there is slippage at the MCE level input.
Performance assessment of buildings seismically isolated with scrap tire rubber pad isolators
Asian J Civ Eng
Zisan, Md. Basir (author) / Hasan, Md. Abul (author) / Haque, Md. Naimul (author)
Asian Journal of Civil Engineering ; 24 ; 287-307
2023-01-01
21 pages
Article (Journal)
Electronic Resource
English
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