Importance of ‘DAF’ in evaluating structural adequacy of gravity-load designed RC buildings

Oggu, Praveen; Gopikrishna, K.; Jha, Saptadwipa

doi:10.1016/j.matpr.2020.04.018

Cited by 4 publications

(2 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Exact behaviour of beam-column joint with ductile detailed and non-ductile detailed can be evaluated by applying reverse cyclic quasi-static stress till failure [13]. The process of evaluation of a structure due to seismic loading can be performed by pushover analysis which is used in this study and when a structure subjected to imposed loading can be performed by modal pushover analysis [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Ductile Detailing Code-Based Reinforced Concrete Special Moment Resisting Frames

Chiluka¹,

Oggu²

2023

IJE

View full text Add to dashboard Cite

Reinforced concrete (RC) buildings make up the majority of Indian building stocks. Structural elements of these buildings are often designed limited to non-ductile detailing. With a very low building replacement rate, many Indian buildings are vulnerable to earthquakes and pose a significant risk to lives, properties and economic activities. This paper examines the effectiveness of ductile-detailing in mitigating the seismic collapse risk by analyzing the behaviour of a four-storey RC Special Moment Resisting Frame (RC SMRF) using the latest codes of ductile detailing. It also aims to quantify the impact of lateral force resisting system detailing on the performance and cost of RC SMRF buildings and its benefits. The present study emphasizes the effect of ductile detailing on three fundamental aspects of the structuresafety, stability and economy. Two four-storeyed building modelsone without ductile detailing and the other with ductile detailing are designed and then analyzed using non-linear static analysis. The results of this study represent the behaviour of ductile-detailed and non-ductile-detailed buildings in terms of pushover curves, and hinge behaviour and identify the mode of final failure. In extension to that, a cost-benefit analysis is done to study the benefits of ductile detailing with the increased cost. The marginal increase in initial cost associated with ductile detailing is significantly outweighed by the resulting savings in the repair and downtime costs during the service life of the building.

show abstract

Section: Introductionmentioning

confidence: 99%

Performance Assessment of Ductile Detailing Code-Based Reinforced Concrete Special Moment Resisting Frames

Chiluka¹,

Oggu²

2023

IJE

View full text Add to dashboard Cite

show abstract

“…The progressive collapse analysis for the RC frame is done very profoundly and still going on for providing the safety of the building and people in it even after the loss of load-bearing columns. The research was carried out by several researchers for keeping the structure in equilibrium and continuity in load transfer [1][2][3][4][5][6][7][8][9][10]. In this study, progressive collapse analysis of the structure for different plan configurations i.e., for square and circular of approximately same slab area, materials, sections and loads has been performed.…”

Section: Introductionmentioning

confidence: 99%

Comparative study on progressive collapse analysis of RC frame buildings subjected to wind and seismic loads

Maheshwaram¹,

Oggu²,

Rao³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

Self Cite

View full text Add to dashboard Cite

Progressive collapse occurs when the local failure of the primary structure leads to an eventual collapse of the structure as the adjoining load-bearing elements fail to transfer the load of the lost column. This analysis checks whether the load transfer from adjoining members upon loss of columns. A 10-storey RC structure of square and circular plan geometry were considered in this study. The buildings were modelled and designed for gravity, wind and earthquake loads as per the guidelines of respective Indian Standards. Further those models were examined for progressive collapse considering different critical column removal scenarios. The DCR results were calculated for the adjacent beams and adjacent columns to check whether the structure elements reach an alternate equilibrium of the load path or not. Out of both the geometry, the circular plan building was showing better performance then square plan building and it is about 10% to 20% better based upon all the analysis and for different loading conditions.

show abstract

Seismic behavior and response reduction factors for concrete moment-resisting frames

Oggu

Gopikrishna

Nagariya

2021

Bull Earthquake Eng

View full text Add to dashboard Cite

Importance of ‘DAF’ in evaluating structural adequacy of gravity-load designed RC buildings

Cited by 4 publications

References 18 publications

Performance Assessment of Ductile Detailing Code-Based Reinforced Concrete Special Moment Resisting Frames

Performance Assessment of Ductile Detailing Code-Based Reinforced Concrete Special Moment Resisting Frames

Comparative study on progressive collapse analysis of RC frame buildings subjected to wind and seismic loads

Seismic behavior and response reduction factors for concrete moment-resisting frames

Contact Info

Product

Resources

About