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A Study to Observe Effect of Ground Soft Story on Structural Performance of Multistoried R.C.C Buildings

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dc.contributor.author Shoriful Islam, Md.
dc.contributor.author Adnan, Md.
dc.contributor.author Akher, Abdul
dc.contributor.author Abir, Arnob Das
dc.date.accessioned 2020-11-21T04:12:49Z
dc.date.available 2020-11-21T04:12:49Z
dc.date.issued 2020-03-10
dc.identifier.uri http://dspace.daffodilvarsity.edu.bd:8080/handle/123456789/5104
dc.description With the demand of the rapid growth of urban population and decreasing of land it has become necessary to construct tall buildings wherever possible. In civil engineering projects sustainability is a very important aspect to consider in designing structures for expected service life. In general low rise buildings are designed according to the required design criteria with a loading system not considering much effect of lateral loads. In case of tall buildings, the wind load and earthquake load are major forms of lateral loads and play vital role as they tend to deflect the whole structure considerably. In this project, the present study aims to investigate a number of RCC buildings with different number of stories (both with and without ground soft story) to determine some structural parameters (for example: base shear, time period, drifts, column reaction forces, beam shear and moment values etc.) The buildings under study have been calculated by means of numerical analysis. en_US
dc.description.abstract The rapid growth of urban population and the consequent pressure on limited space have considerably influenced city residential development upward resulting in high rise buildings. Now-a-days majority of the high-rise buildings intend to provide spacious open areas (to provide parking facilities, shops, superstores, other special facilities etc.) at the ground floor for the inhabitants of the residence or other commercial buildings. To facilitate this demand of the building owners, the Structural Engineers design building structures avoiding use of infill walls at the functional area of the ground floor, but maintaining the partition walls in the other floors, which results in an asymmetric structural behavior under service loads. These structures are currently getting special attraction to be analyzed for understanding their structural behavior completely. Keeping this scope in mind, the current study aims to investigate structural behavioral pattern of multistoried RCC buildings to observe ground soft storey effect on these buildings. The study is carried out to analyze ten RCC residential buildings (five with soft storey and the other five without soft storey) by means of numerical finite element analysis software ETABS. A number of structural parameters (base shear, time period, drifts, column reaction forces) have been determined involving load combinations of vertical as well as lateral loads in both directions of building plan. Afterwards, each of these attained outputs have been compared for buildings with soft storey and buildings without soft storey for better understanding. It is observed that, in case of time period and base shear, almost similar values are obtained for buildings with a particular height (for buildings with soft storey and buildings without soft storey). For the cases of support reactions of interior, exterior, or corner columns, the buildings without ground soft storey experiences much higher support reaction compared to those with ground soft stories. Overall, buildings with soft storey have higher storey drift values then those without soft storey. Especially for earthquake loads, the storey drift values of buildings with soft storey vary significantly than those of buildings without soft storey. But for wind loads this, variations is not so prominent. The observations found from the present study addresses several important concerns and it also indicates that more study should be carried out to properly reveal the structural behavior of not only the RCC structures, but also steel and steel-concrete composite buildings, buildings with various slab systems. en_US
dc.language.iso en en_US
dc.publisher Daffodil International University en_US
dc.subject Civil Engineering en_US
dc.title A Study to Observe Effect of Ground Soft Story on Structural Performance of Multistoried R.C.C Buildings en_US
dc.type Other en_US


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