Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Limiting Drift to Contain Stiffness Irregularity in RC Buildings Under Earthquake Shaking
https://orcid.org/https://orcid.org/0009-0004-8267-155X
https://orcid.org/http://orcid.org/0000-0003-2442-3561
Buildings with stiffness irregularity along elevation cause undesired deformations and damages during an intense earthquake. Therefore, provisions are suggested in design codes to identify such irregularity in buildings at the initial design stage. Typically, stiffness irregularity is defined in building codes based on the variation in lateral stiffness (e.g., India, New Zealand, etc.) or lateral drift (e.g., Peru and Turkey) of adjacent storeys. Thus, it is necessary to identify the finest methods of calculating stiffness irregularity in buildings. Using simple equivalent static analysis, four distinct 2D RC moment frame buildings are used to examine their stiffness irregularity based on four different codes (India, Peru, New Zealand, and Turkey). Responses are studied with and without including infill wall effects as an equivalent strut. In buildings with strut, stiffness irregularity defined based on India, i.e., IS 1893(1) is more appropriate than other building codes. Building codes of Peru or Turkey need to revise the upper limit. Otherwise, irregular buildings become regular, whereas New Zealand provisions define all buildings as irregular. But, without using equivalent strut, India or Peru describes even regular buildings as irregular; Turkey defines all buildings as regular, but New Zealand provisions are more appropriate. Therefore, it is also desirable to determine stiffness irregularity based on lateral drift (e.g., Peru or Turkey) with revised upper limits; otherwise, designer engineers must wisely use the check given in different code provisions by considering the effect of infill walls.
Limiting Drift to Contain Stiffness Irregularity in RC Buildings Under Earthquake Shaking
https://orcid.org/https://orcid.org/0009-0004-8267-155X
https://orcid.org/http://orcid.org/0000-0003-2442-3561
Buildings with stiffness irregularity along elevation cause undesired deformations and damages during an intense earthquake. Therefore, provisions are suggested in design codes to identify such irregularity in buildings at the initial design stage. Typically, stiffness irregularity is defined in building codes based on the variation in lateral stiffness (e.g., India, New Zealand, etc.) or lateral drift (e.g., Peru and Turkey) of adjacent storeys. Thus, it is necessary to identify the finest methods of calculating stiffness irregularity in buildings. Using simple equivalent static analysis, four distinct 2D RC moment frame buildings are used to examine their stiffness irregularity based on four different codes (India, Peru, New Zealand, and Turkey). Responses are studied with and without including infill wall effects as an equivalent strut. In buildings with strut, stiffness irregularity defined based on India, i.e., IS 1893(1) is more appropriate than other building codes. Building codes of Peru or Turkey need to revise the upper limit. Otherwise, irregular buildings become regular, whereas New Zealand provisions define all buildings as irregular. But, without using equivalent strut, India or Peru describes even regular buildings as irregular; Turkey defines all buildings as regular, but New Zealand provisions are more appropriate. Therefore, it is also desirable to determine stiffness irregularity based on lateral drift (e.g., Peru or Turkey) with revised upper limits; otherwise, designer engineers must wisely use the check given in different code provisions by considering the effect of infill walls.
Limiting Drift to Contain Stiffness Irregularity in RC Buildings Under Earthquake Shaking
https://orcid.org/https://orcid.org/0009-0004-8267-155X
https://orcid.org/http://orcid.org/0000-0003-2442-3561
Buildings with stiffness irregularity along elevation cause undesired deformations and damages during an intense earthquake. Therefore, provisions are suggested in design codes to identify such irregularity in buildings at the initial design stage. Typically, stiffness irregularity is defined in building codes based on the variation in lateral stiffness (e.g., India, New Zealand, etc.) or lateral drift (e.g., Peru and Turkey) of adjacent storeys. Thus, it is necessary to identify the finest methods of calculating stiffness irregularity in buildings. Using simple equivalent static analysis, four distinct 2D RC moment frame buildings are used to examine their stiffness irregularity based on four different codes (India, Peru, New Zealand, and Turkey). Responses are studied with and without including infill wall effects as an equivalent strut. In buildings with strut, stiffness irregularity defined based on India, i.e., IS 1893(1) is more appropriate than other building codes. Building codes of Peru or Turkey need to revise the upper limit. Otherwise, irregular buildings become regular, whereas New Zealand provisions define all buildings as irregular. But, without using equivalent strut, India or Peru describes even regular buildings as irregular; Turkey defines all buildings as regular, but New Zealand provisions are more appropriate. Therefore, it is also desirable to determine stiffness irregularity based on lateral drift (e.g., Peru or Turkey) with revised upper limits; otherwise, designer engineers must wisely use the check given in different code provisions by considering the effect of infill walls.
Limiting Drift to Contain Stiffness Irregularity in RC Buildings Under Earthquake Shaking
Lecture Notes in Civil Engineering
Goel, Manmohan Dass (Herausgeber:in) / Biswas, Rahul (Herausgeber:in) / Dhanvijay, Sonal (Herausgeber:in) / Laghate, Aditya (Autor:in) / Tamizharasi, G. (Autor:in)
Structural Engineering Convention ; 2023 ; Nagpur, India
13.11.2024
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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