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Effect of Projection Ratio on H-shaped RC Buildings Under Earthquake Shaking
https://orcid.org/http://orcid.org/0000-0003-2442-3561
Poor performance of buildings with poor plan geometry evidenced catastrophic failure during past earthquakes. Mostly, such buildings have re-entrant corners having different ranges of projection. Therefore, building codes defined limits for projection based on normalised projection length (e.g., India and Venezuela) or normalised projection area (e.g., Eurocode and Venezuela). An attempt is made to understand the effect of the projection on 5-storey H-shaped symmetric buildings by varying the projection ratios (10%, 16.7%, and 25%). Buildings are analysed, designed, and detailed using IS 456, IS 1893(1), and IS 13920, respectively. The inelastic behaviour (based on nonlinear static analysis, NLPoA and nonlinear dynamic analyses, NLTHA) of these buildings are studied using ETABS and Perform 3D. Structural element damage is estimated at the performance point of NLPoA and nonlinear dynamic analysis at maximum considered earthquake. Buildings designed with 10% projection show limited damage compared to 16.7% and 25% projections. Also, limiting only the projection ratio may not help contain the poor performance of buildings with different plan geometry.
Effect of Projection Ratio on H-shaped RC Buildings Under Earthquake Shaking
https://orcid.org/http://orcid.org/0000-0003-2442-3561
Poor performance of buildings with poor plan geometry evidenced catastrophic failure during past earthquakes. Mostly, such buildings have re-entrant corners having different ranges of projection. Therefore, building codes defined limits for projection based on normalised projection length (e.g., India and Venezuela) or normalised projection area (e.g., Eurocode and Venezuela). An attempt is made to understand the effect of the projection on 5-storey H-shaped symmetric buildings by varying the projection ratios (10%, 16.7%, and 25%). Buildings are analysed, designed, and detailed using IS 456, IS 1893(1), and IS 13920, respectively. The inelastic behaviour (based on nonlinear static analysis, NLPoA and nonlinear dynamic analyses, NLTHA) of these buildings are studied using ETABS and Perform 3D. Structural element damage is estimated at the performance point of NLPoA and nonlinear dynamic analysis at maximum considered earthquake. Buildings designed with 10% projection show limited damage compared to 16.7% and 25% projections. Also, limiting only the projection ratio may not help contain the poor performance of buildings with different plan geometry.
Effect of Projection Ratio on H-shaped RC Buildings Under Earthquake Shaking
https://orcid.org/http://orcid.org/0000-0003-2442-3561
Poor performance of buildings with poor plan geometry evidenced catastrophic failure during past earthquakes. Mostly, such buildings have re-entrant corners having different ranges of projection. Therefore, building codes defined limits for projection based on normalised projection length (e.g., India and Venezuela) or normalised projection area (e.g., Eurocode and Venezuela). An attempt is made to understand the effect of the projection on 5-storey H-shaped symmetric buildings by varying the projection ratios (10%, 16.7%, and 25%). Buildings are analysed, designed, and detailed using IS 456, IS 1893(1), and IS 13920, respectively. The inelastic behaviour (based on nonlinear static analysis, NLPoA and nonlinear dynamic analyses, NLTHA) of these buildings are studied using ETABS and Perform 3D. Structural element damage is estimated at the performance point of NLPoA and nonlinear dynamic analysis at maximum considered earthquake. Buildings designed with 10% projection show limited damage compared to 16.7% and 25% projections. Also, limiting only the projection ratio may not help contain the poor performance of buildings with different plan geometry.
Effect of Projection Ratio on H-shaped RC Buildings Under Earthquake Shaking
Lecture Notes in Civil Engineering
Kumar, Ratnesh (editor) / Bakre, Sachin V. (editor) / Goel, Manmohan Dass (editor) / Balu, Naraboina (author) / Tamizharasi, G. (author)
Structural Engineering Convention ; 2023 ; Nagpur, India
2024-11-24
9 pages
Article/Chapter (Book)
Electronic Resource
English
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