Incorporation of Rubber-Steel Bearing Isolation in Multi-Storey Muilding

Islam, A. B. M. Saiful; Jumaat, Mohd Zamin; Hussain, Raja Rizwan; Alam, Ashraful

doi:10.3846/13923730.2013.801904

Cited by 10 publications

(3 citation statements)

References 26 publications

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“…In 1968, a building in Macedonia was built on hard rubber blocks. Soon after that, in 1969 a primary school in Yugoslavia was built on rubber bearings as base isolation for strong earthquakes [7]. In another study, innovative simplified design procedures were established for two types of isolator (i.e.…”

Section: Introductionmentioning

confidence: 99%

Effect of Base Isolator on the Structural Response of Reinforced Concrete Multistoried Building Under Seismic Loads

Tafheem¹,

Arafat²,

Chowdhury³

et al. 2017

JCEST

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This study investigates the effect of base isolator on the structural responses of multistoried reinforced concrete building under time history earthquake loading. In the present study, six-storied reinforced concrete buildings with both conventional and isolated bases have been modeled. Conventional building has been modeled with fixed support whereas base-isolated building has been modeled incorporating rubber bearing near the base of all columns. Modal analysis has been performed to get an idea of possible mode shapes of the building. After that time history analysis has been performed in order to investigate the effect of seismic loading on the building structure with respect to time. The structural responses of time history analysis such as time period of different modes, storey displacements, storey acceleration, and base shear have been obtained from both conventional and base-isolated buildings. Finally, a comparative study of structural responses has been carried out between those two structures. It has been found that fundamental time period of base-isolated building is increased by 28% compared to conventional building. Moreover, base shear value of the base-isolated structure is reduced by 69% and top storey acceleration is decreased by 75% compared to conventional building. This study reveals that isolation system reduces seismic responses significantly.

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Section: Introductionmentioning

confidence: 99%

Effect of Base Isolator on the Structural Response of Reinforced Concrete Multistoried Building Under Seismic Loads

Tafheem¹,

Arafat²,

Chowdhury³

et al. 2017

JCEST

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“…The use of lightweight concrete (LWC) has many advantages over normal weight concrete, such as a reduction in the size of the structural elements, increase in building height and a greater span-depth ratio for beams in pre-stressed concrete construction (Shannag, 2000). In designing a structural element, the compressive strength is desirable along with acceptable ductility under heavy loading to ensure adequate deflection (Aslam et al, 2014;Islam et al, 2013). Furthermore, it is widely acknowledged that concrete failure is sudden and brittle in nature in the case of diagonal tension (Cárdenas et al, 2010;Rahman et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Influence of palm oil factory wastes as coarse aggregate species for green lightweight concrete

Huda

Jumat

Islam

et al. 2016

Revista de la Construcción

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Due to environmental issues, the use of waste materials in concrete is gaining popularity. Waste materials, such as oil palm shell (OPS) and palm oil clinker (POC) from the Malaysian palm oil industry are being used in various researches to produce lightweight concrete. Concrete containing only OPS shows more ductility and low compressive strength, while POC concrete shows less ductility but high compressive strength. The combination of OPS and POC may show improved compressive strength and ductility behavior. In this experimental study, the normal coarse aggregate is replaced by a mixture of OPS and POC aggregates in the lightweight concrete. The proportion of OPS and POC in the concrete mix varies from 40% to 70%. The results indicate that if a mixture of OPS and POC aggregate in producing lightweight concrete, better performance regarding compressive strength and ductility can be achieved. Furthermore, through the utilization of waste materials, the proposed lightweight concrete will help to mitigate the negative impact on the environment.Key words: Factory waste, OPS, POC, green concrete, lightweight material, engineering properties, ductility behavior Resumen Debido a las cuestiones ambientales, el uso de materiales de desecho en el hormigón está ganando popularidad. Los materiales de desecho, como la cascara de palma aceitera (OPS, en inglés) y el clinker de la palma aceitera (POC) de la industria del aceite de palma de Malasia están siendo utilizados en diversas investigaciones para producir cemento ligero. El hormigón que contenga sólo OPS muestra más ductilidad y baja resistencia a la compresión, mientras que el hormigón POC muestra menos ductilidad pero alta resistencia a la compresión. La combinación de la OPS y POC puede mostrar mejor comportamiento de ductilidad y resistencia a la compresión. En este estudio experimental, el agregado grueso normal es sustituido por una mezcla de agregados de OPS y POC en el hormigón ligero. La proporción de la OPS y POC en la mezcla varía de 40% a 70%. Los resultados indican que si una mezcla de agregados de OPS y POC en la producción de hormigón ligero, mejora el rendimiento en cuanto a resistencia a la compresión y ductilidad. Además, mediante la utilización de materiales de desecho, el hormigón ligero propuesto ayudará a mitigar el impacto negativo en el medio ambiente.Palabras clave: Residuos de fábrica, OPS, POC, hormigón verde, material ligero, propiedades de ingeniería, comportamiento de ductilidad.

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“…Seismic intensity has been seen to have a significant influence on structural behaviour. Base isolation reduces the lateral forces on the structure and hence the structural excursions (Islam et al 2012a(Islam et al , 2013 as well as cost (Islam et al 2010). However in the city of Dhaka in Bangladesh, the concept of isolation of building structures is still young and has rarely been incorporated for multi-storey buildings (Islam et al 2012b;Jameel et al 2012a).…”

Section: Introductionmentioning

confidence: 99%

Efficient Design in Building Construction With Rubber Bearing in Medium Risk Seismicity: Case Study and Assessment

Islam

Ahmad

Jumaat

et al. 2014

Journal of Civil Engineering and Management

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Earthquakes pose tremendous threats to life, property and a country's economy, not least due to their capability of destroying buildings and causing enormous structural damage. The hazard from ground excitations should be properly assessed to mitigate their action on building structures. This study is concerned with medium risk seismic regions. Specifically, the heavily populated capital city Dhaka in Bangladesh has been considered. Recent earthquakes that occurred inside and very close to the city have manifested the city's earthquake sources and vulnerability. Micro-seismicity data supports the existence of at least four earthquake source points in and around Dhaka. The effects of the earthquakes on buildings are studied for this region. Rubber base isolation is selected as an innovative option to lessen seismic loads on buildings. Case studies have been carried out for fixed and isolated based multi-storey buildings. Lead rubber bearing and high damping rubber bearing have been designed and incorporated in building bases. Structural response behaviours have been evaluated through static and dynamic analyses. For the probable severe earthquake, rubber bearing isolation can be a suitable alternative as it mitigates seismic effects, reduces structural responses and provides structural and economic benefits.

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Incorporation of Rubber-Steel Bearing Isolation in Multi-Storey Muilding

Cited by 10 publications

References 26 publications

Effect of Base Isolator on the Structural Response of Reinforced Concrete Multistoried Building Under Seismic Loads

Effect of Base Isolator on the Structural Response of Reinforced Concrete Multistoried Building Under Seismic Loads

Influence of palm oil factory wastes as coarse aggregate species for green lightweight concrete

Efficient Design in Building Construction With Rubber Bearing in Medium Risk Seismicity: Case Study and Assessment

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