دراسة نماذج من القشريات الكروية البيتونية المسلحة تحت تأثير الحمولات الزلزالية

Abstract

Spherical shells are characterized by their long spans, providing spacious areas, which makes them significant in venues such as halls, exhibitions, airports, and places of worship. Therefore, their resistance to seismic loads is an important subject for study. This research contributes to the understanding of the behavior of spherical shells under seismic loads by applying seismic loading using the response spectrum method with the SAP2000 software on nine models. It was found that the maximum displacement and the maximum internal forces occur at the connections between the shells and the circular beams, with the first mode being dominant and exhibiting a translational behavior. Additionally, the relationship between the ratio the ratio and both the period and shear force, as well as the maximum displacement for the studied models, was analyzed, leading to a set of findings and recommendations.