Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic Performance of Open Ground Floor Tall Buildings on Flexible Ground
Seismic performance assessment of building is challenge to civil engineers. The complexity of earthquakes, unpredictable soil and uncertainties in construction lead many structures to be vulnerable during earthquakes. Generally in urban area, buildings have open ground floor to accommodate parking, reception, lobbies with reduced infill etc. It has been well established that open ground floor buildings can enhance the vulnerability of structures. This paper attempts to show that tall open ground floor buildings on soft soil will become even more vulnerable during earthquakes, due to flexibility of ground. For this purpose, ETABS, a finite element software that performs non-linear pushover analysis is used and three dimensional analysis is performed. Gazetas approach (1991) has been used to model the ground with varying stiffness. Open ground floor reinforced concrete frame on flexible ground is considered in analysis. Unsymmetrical structural frame was found to be more vulnerable indicating that extra care is necessary while handling unsymmetrical structures.
Seismic Performance of Open Ground Floor Tall Buildings on Flexible Ground
Seismic performance assessment of building is challenge to civil engineers. The complexity of earthquakes, unpredictable soil and uncertainties in construction lead many structures to be vulnerable during earthquakes. Generally in urban area, buildings have open ground floor to accommodate parking, reception, lobbies with reduced infill etc. It has been well established that open ground floor buildings can enhance the vulnerability of structures. This paper attempts to show that tall open ground floor buildings on soft soil will become even more vulnerable during earthquakes, due to flexibility of ground. For this purpose, ETABS, a finite element software that performs non-linear pushover analysis is used and three dimensional analysis is performed. Gazetas approach (1991) has been used to model the ground with varying stiffness. Open ground floor reinforced concrete frame on flexible ground is considered in analysis. Unsymmetrical structural frame was found to be more vulnerable indicating that extra care is necessary while handling unsymmetrical structures.
Seismic Performance of Open Ground Floor Tall Buildings on Flexible Ground
Lecture Notes in Civil Engineering
Satyanarayana Reddy, C. N. V. (Herausgeber:in) / Krishna, A. Murali (Herausgeber:in) / Satyam, Neelima (Herausgeber:in) / Niranjan, R. K. (Autor:in) / Prasad, S. K. (Autor:in)
17.01.2022
6 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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