The Influence of the Construction Sequence on the Mechanism of Soil Interaction Structure for a Low Building of Reinforced Concrete

• DOI: 10.22533/at.ed.317342323016

• Palavras-chave: Constructive Sequence, Soil Structure Interaction, Low Buildings, Reinforced Concrete.

• Keywords: Constructive Sequence, Soil Structure Interaction, Low Buildings, Reinforced Concrete.

• Abstract:

  In the present article, initially, the loads on the pillars of a low building (3 floors) are evaluated for the elastic behavior with instantaneous loading and with gradual loading (construction in 3 stages). The commercial finite element program SAP2000 (version 15) is used with the phased construction module. Subsequently, an analysis is carried out over time, also considering instantaneous loading and built in 3 steps. The staged construction module makes it possible to consider concrete creep and shrinkage. With regard to the elastic analysis with instantaneous loading and in 3 stages, it was found that even for low values of normal efforts, there was a redistribution of requests in the columns. Thus, the importance of considering the influence of the constructive sequence on the redistribution of efforts in reinforced concrete structures is highlighted. It appears that future investigations are necessary, also considering the influence of masonry, coatings and occupancy overload, in addition to structures with elements (especially beams and pillars) of different stiffness, and also the study of the redistribution of efforts for the case of taller buildings. Regarding the analysis carried out over time (fluency and retraction), it was noticed that there was no redistribution of requests. This result may be linked to the simplicity of the studied model.