The thermal response of multi-storeies concrete frame building in the Arabic area

Abstract

In this paper, there will be an analysis study to figure out the impact of the environment thermal loads, shrinkage and creep at multi-storeies reinforced concrete frame buildings in the Arabic area. Etabs models will be prepared considering time dependent properties of concrete and non-time dependent properties, considering two columns heights as 3m and 6m, and two supports conditions as fixed and hinged to define the major aspects affect the thermal response of multi-storey concrete frame buildings concentrating at the thermal deformations and the columns reactions, then it will be compared with the thermal response of existing concrete building considering both methodologies of time dependent properties and non-time dependent properties of concrete to define the optimum methodology to be recommended and followed The generated Etabs models confirmed that the time dependent properties method is the optimum with a clear conversion between time dependent properties model and the existing parking thermal deformations. The increment in horizontal reactions under thermal loads due to column support condition is accompanied with a reduction in horizontal slabs deformations. Column height is inversely proportional to horizontal reaction values, finally, the importance of analyzing thermal loads fluctuation at columns reactions for multi storeies buildings whereas the reactions of multi storeies cannot be predicted from single storey analysis.