A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic Analysis of Vertical Irregularities in Buildings
Abstract In structures perfect regularity is an idealisation as real structures are almost irregular. Actual forces acting on structures are always greater than design base earthquake forces. Due to earthquake forces, extra shear and torsion is produced on irregular structure that leads to decrease in seismic performance significantly. This paper proposes three states of structures i.e. I-shape, and stepped buildings all are mid-rise (6 storeyed) and high rise (12 storeyed). The structures are modelled and analysed in software ETABS 16.1.0 (2016) and different seismic responses such as shear force, storey drift, storey displacement, etc. were obtained. The seismic analysis was carried out according to IS 1893 part(1):2002 and seismic zone V has been taken for all the cases. From the results of analysis, it was observed that in structure with geometric irregularity the stiffness is far more than that of regular structure. So the displacement of structure with geometric irregularity is less as compared to regular structure and the storey drift criteria as per IS 1893 (PART-1):2002 (i.e. 0.004 times of storey height) was satisfied by all the models of three storey, six storey and twelve storey building.
Seismic Analysis of Vertical Irregularities in Buildings
Abstract In structures perfect regularity is an idealisation as real structures are almost irregular. Actual forces acting on structures are always greater than design base earthquake forces. Due to earthquake forces, extra shear and torsion is produced on irregular structure that leads to decrease in seismic performance significantly. This paper proposes three states of structures i.e. I-shape, and stepped buildings all are mid-rise (6 storeyed) and high rise (12 storeyed). The structures are modelled and analysed in software ETABS 16.1.0 (2016) and different seismic responses such as shear force, storey drift, storey displacement, etc. were obtained. The seismic analysis was carried out according to IS 1893 part(1):2002 and seismic zone V has been taken for all the cases. From the results of analysis, it was observed that in structure with geometric irregularity the stiffness is far more than that of regular structure. So the displacement of structure with geometric irregularity is less as compared to regular structure and the storey drift criteria as per IS 1893 (PART-1):2002 (i.e. 0.004 times of storey height) was satisfied by all the models of three storey, six storey and twelve storey building.
Seismic Analysis of Vertical Irregularities in Buildings
Sanyogita (author) / Saini, Babita (author)
2018-10-31
10 pages
Article/Chapter (Book)
Electronic Resource
English
Influence of vertical irregularities on seismic response of buildings
| British Library Conference Proceedings | 1995
| DOAJ | 2023
Seismic Response of Building Frames with Vertical Structural Irregularities
| British Library Online Contents | 1997
| British Library Conference Proceedings | 2022