Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Quantification of Degree of Irregularity in Mass Irregular RC Buildings Using Irregularity Index Based on Dynamic Characteristics
Mass irregular buildings are more vulnerable to seismic loading depending on their degree of irregularity. Therefore, design codes/standards prescribed different irregularity limits to identify the mass irregular buildings. However, design codes/standards are incapable of quantifying the degree of mass irregularity based on its elevation in the building. Furthermore, no effort was made in the past literature to quantify the degree of mass irregularity based on the elevation of the building. Therefore, the present study tried to quantify the degree of mass irregularity in reinforced concrete (RC) buildings based on elevation using a proposed Irregularity Index (μ). Furthermore, a comparison of the degree of mass irregularity was evaluated using the existing irregularity indices which are defined to quantify the geometric irregularities by the past literature. All the selected mass irregular RC buildings are numerically modeled using SAP2000 and modal analysis is performed to compute the degree of mass irregularity using the proposed Irregularity Index (μ). It has been found that the proposed Irregularity Index (μ) can well quantify the degree of mass irregularity depending on its elevation in RC buildings. Furthermore, the comparison of the existing irregularity indices shows that Irregularity Index (λ) proposed by Varadharajan et al. can also be used to quantify the degree of mass irregularity in RC buildings though it has been initially defined for the quantification of the geometric irregularities. The Irregularity Index (μ) can help to identify the different degrees of mass irregularity based on its elevation. Furthermore, it also aids in understanding the seismic vulnerability of mass irregular RC buildings and developing a correlation to study the seismic vulnerability with the degree of mass irregularity.
Quantification of Degree of Irregularity in Mass Irregular RC Buildings Using Irregularity Index Based on Dynamic Characteristics
Mass irregular buildings are more vulnerable to seismic loading depending on their degree of irregularity. Therefore, design codes/standards prescribed different irregularity limits to identify the mass irregular buildings. However, design codes/standards are incapable of quantifying the degree of mass irregularity based on its elevation in the building. Furthermore, no effort was made in the past literature to quantify the degree of mass irregularity based on the elevation of the building. Therefore, the present study tried to quantify the degree of mass irregularity in reinforced concrete (RC) buildings based on elevation using a proposed Irregularity Index (μ). Furthermore, a comparison of the degree of mass irregularity was evaluated using the existing irregularity indices which are defined to quantify the geometric irregularities by the past literature. All the selected mass irregular RC buildings are numerically modeled using SAP2000 and modal analysis is performed to compute the degree of mass irregularity using the proposed Irregularity Index (μ). It has been found that the proposed Irregularity Index (μ) can well quantify the degree of mass irregularity depending on its elevation in RC buildings. Furthermore, the comparison of the existing irregularity indices shows that Irregularity Index (λ) proposed by Varadharajan et al. can also be used to quantify the degree of mass irregularity in RC buildings though it has been initially defined for the quantification of the geometric irregularities. The Irregularity Index (μ) can help to identify the different degrees of mass irregularity based on its elevation. Furthermore, it also aids in understanding the seismic vulnerability of mass irregular RC buildings and developing a correlation to study the seismic vulnerability with the degree of mass irregularity.
Quantification of Degree of Irregularity in Mass Irregular RC Buildings Using Irregularity Index Based on Dynamic Characteristics
Lecture Notes in Civil Engineering
Dissanayake, Ranjith (Herausgeber:in) / Mendis, Priyan (Herausgeber:in) / Weerasekera, Kolita (Herausgeber:in) / De Silva, Sudhira (Herausgeber:in) / Fernando, Shiromal (Herausgeber:in) / Konthesingha, Chaminda (Herausgeber:in) / Gajanayake, Pradeep (Herausgeber:in) / Rathnasiri, H. M. S. C. (Autor:in) / Jayasinghe, J. A. S. C. (Autor:in) / Bandara, C. S. (Autor:in)
International Conference on Sustainable Built Environment ; 2022 ; Yogyakarta, Indonesia
10.08.2023
13 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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