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Performance based design of high rise reinforced concrete structures
Engineers are taught to offer designs and adhere to statutory requirements in the field of structural engineering, but in recent years, it has become clear that the existing requirements are insufficient due to the accelerated expansion of infrastructure. In past decades, it has also been observed that the frequency of natural disasters has been increased. It is challenging to forecast the lateral forces that would be produced during natural calamities because buildings are planned based on historical data. Therefore, it is challenging to respond to complicated projects using standard analysis procedures, the most frequent question asked in every project, “Is the structure safe?” This is where performance-based design (PBD) becomes necessary. The PBD was performed on the high-rise G + 30 structure to study its behavior and complexity under the seismic activity. In these, we explored how the PBD enables investigation of the structure’s actual behavior during ground motion. The information obtained by PBD represents the seismic demands as they actually exist. The graphs were plotted to study various seismic demands in which it was studied that the maximum displacement out of all the analyses was observed in pushover analysis in x-direction, whereas time history analysis was dominant in y-direction. The storey drift was minimum for the pushover analysis, whereas maximum for time history in x-direction; the same analysis type was dominant in y-direction also but the minimum storey drift was observed in response spectrum analysis. The base shear obtained was maximum by time history analysis in both directions and the overturning moment was maximum due to linear static analysis in both directions. The performance of hinges was also observed for the non-linear analysis from which the members who are need to be treated can be clearly visible. A fragility curve for studying seismic hazard based on peak ground acceleration was developed.
Performance based design of high rise reinforced concrete structures
Engineers are taught to offer designs and adhere to statutory requirements in the field of structural engineering, but in recent years, it has become clear that the existing requirements are insufficient due to the accelerated expansion of infrastructure. In past decades, it has also been observed that the frequency of natural disasters has been increased. It is challenging to forecast the lateral forces that would be produced during natural calamities because buildings are planned based on historical data. Therefore, it is challenging to respond to complicated projects using standard analysis procedures, the most frequent question asked in every project, “Is the structure safe?” This is where performance-based design (PBD) becomes necessary. The PBD was performed on the high-rise G + 30 structure to study its behavior and complexity under the seismic activity. In these, we explored how the PBD enables investigation of the structure’s actual behavior during ground motion. The information obtained by PBD represents the seismic demands as they actually exist. The graphs were plotted to study various seismic demands in which it was studied that the maximum displacement out of all the analyses was observed in pushover analysis in x-direction, whereas time history analysis was dominant in y-direction. The storey drift was minimum for the pushover analysis, whereas maximum for time history in x-direction; the same analysis type was dominant in y-direction also but the minimum storey drift was observed in response spectrum analysis. The base shear obtained was maximum by time history analysis in both directions and the overturning moment was maximum due to linear static analysis in both directions. The performance of hinges was also observed for the non-linear analysis from which the members who are need to be treated can be clearly visible. A fragility curve for studying seismic hazard based on peak ground acceleration was developed.
Performance based design of high rise reinforced concrete structures
Asian J Civ Eng
Pujari, Atul B. (author) / Bhatkar, Saquib (author) / Undre, Abhijeet R. (author)
Asian Journal of Civil Engineering ; 25 ; 1487-1502
2024-02-01
16 pages
Article (Journal)
Electronic Resource
English
Performance-based design (PBD) , Linear static analysis (LSA) , Linear dynamic analysis (LDA): response spectrum analysis (RSA) , Non-linear static analysis (NLSA): pushover analysis , Non-linear dynamic analysis (NLDA): time history analysis (THA) Engineering , Civil Engineering , Building Materials , Sustainable Architecture/Green Buildings
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