Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Code Provisions to Contain Pounding Effects in RC Buildings Under Earthquake Excitation
https://orcid.org/http://orcid.org/0000-0003-2442-3561
During past earthquakes, buildings constructed without any separation gap (Sg) caused damage confined to a single storey or complete collapse due to pounding effects. Therefore, building codes usually limit the separation gap using a certain percentage of height (e.g., Australia) or inelastic displacements estimated using elastic displacements modified based on (i) response reduction factor R (e.g., India, Iran, etc.) and (ii) a constant value (e.g., Egypt and Korea). A set of 2D building configurations having 3, 5 and 10 storeys are considered to check the applicability of the limits given in IS 1893 (1) for different R values (3 and 5). All the buildings are designed and detailed using IS 456, IS 1893(1) and IS 13920. The inelastic behaviour of these buildings is studied using nonlinear static analysis based on Perform 3D software. Also, the level of damages is higher in buildings with 3 and 5 storeys than 10 storeys at the performance point corresponding to the maximum considered earthquake. Displacement response estimated at the performance point is checked with limits defined in IS 1893(1); the limits specified in building code provisions for the Sg apply to medium-storey buildings (e.g., 5 storey) and not for too stiff or flexible (e.g., 3 and 10 storey) buildings. The limits must be revised considering variation along height (say 0.8 to 1.7% inelastic drift). The results should be validated with nonlinear dynamic analysis.
Code Provisions to Contain Pounding Effects in RC Buildings Under Earthquake Excitation
https://orcid.org/http://orcid.org/0000-0003-2442-3561
During past earthquakes, buildings constructed without any separation gap (Sg) caused damage confined to a single storey or complete collapse due to pounding effects. Therefore, building codes usually limit the separation gap using a certain percentage of height (e.g., Australia) or inelastic displacements estimated using elastic displacements modified based on (i) response reduction factor R (e.g., India, Iran, etc.) and (ii) a constant value (e.g., Egypt and Korea). A set of 2D building configurations having 3, 5 and 10 storeys are considered to check the applicability of the limits given in IS 1893 (1) for different R values (3 and 5). All the buildings are designed and detailed using IS 456, IS 1893(1) and IS 13920. The inelastic behaviour of these buildings is studied using nonlinear static analysis based on Perform 3D software. Also, the level of damages is higher in buildings with 3 and 5 storeys than 10 storeys at the performance point corresponding to the maximum considered earthquake. Displacement response estimated at the performance point is checked with limits defined in IS 1893(1); the limits specified in building code provisions for the Sg apply to medium-storey buildings (e.g., 5 storey) and not for too stiff or flexible (e.g., 3 and 10 storey) buildings. The limits must be revised considering variation along height (say 0.8 to 1.7% inelastic drift). The results should be validated with nonlinear dynamic analysis.
Code Provisions to Contain Pounding Effects in RC Buildings Under Earthquake Excitation
https://orcid.org/http://orcid.org/0000-0003-2442-3561
During past earthquakes, buildings constructed without any separation gap (Sg) caused damage confined to a single storey or complete collapse due to pounding effects. Therefore, building codes usually limit the separation gap using a certain percentage of height (e.g., Australia) or inelastic displacements estimated using elastic displacements modified based on (i) response reduction factor R (e.g., India, Iran, etc.) and (ii) a constant value (e.g., Egypt and Korea). A set of 2D building configurations having 3, 5 and 10 storeys are considered to check the applicability of the limits given in IS 1893 (1) for different R values (3 and 5). All the buildings are designed and detailed using IS 456, IS 1893(1) and IS 13920. The inelastic behaviour of these buildings is studied using nonlinear static analysis based on Perform 3D software. Also, the level of damages is higher in buildings with 3 and 5 storeys than 10 storeys at the performance point corresponding to the maximum considered earthquake. Displacement response estimated at the performance point is checked with limits defined in IS 1893(1); the limits specified in building code provisions for the Sg apply to medium-storey buildings (e.g., 5 storey) and not for too stiff or flexible (e.g., 3 and 10 storey) buildings. The limits must be revised considering variation along height (say 0.8 to 1.7% inelastic drift). The results should be validated with nonlinear dynamic analysis.
Code Provisions to Contain Pounding Effects in RC Buildings Under Earthquake Excitation
Lecture Notes in Civil Engineering
Goel, Manmohan Dass (Herausgeber:in) / Vyavahare, Arvind Y. (Herausgeber:in) / Khatri, Ashish P. (Herausgeber:in) / Yashwanth, Bakam (Autor:in) / Tamizharasi, G. (Autor:in)
Structural Engineering Convention ; 2023 ; Nagpur, India
26.10.2024
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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