Performance-based Seismic Evaluation of Vertically Irregular Moment Resisting Reinforced Concrete Frames using Nonlinear Statics Analysis

International Journal of Civil Engineering

© 2021 by SSRG - IJCE Journal

Volume 8 Issue 6

Year of Publication : 2021

Authors : Abdul Mabood, Mohd.Zameerruddin, P.M. Shimpale

10.14445/23488352/IJCE-V8I6P102

How to Cite?

Abdul Mabood, Mohd.Zameerruddin, P.M. Shimpale, "Performance-based Seismic Evaluation of Vertically Irregular Moment Resisting Reinforced Concrete Frames using Nonlinear Statics Analysis," SSRG International Journal of Civil Engineering, vol. 8,  no. 6, pp. 8-19, 2021. Crossref, https://doi.org/10.14445/23488352/IJCE-V8I6P102

Abstract:

Nonlinear static procedures are used mainly for evaluation of the capacity of structures subjected to the seismic loads. During the seismic events reinforced concrete structures get damaged or collapsed. These damages happen due to the improper distribution of structural mass, structural stiffness and structural strength. In the structural irregular frames damages appears along the section which are geometrically unstable. This vulnerability of the irregular frame has caused discomfort among the stakeholders, especially for the multi-storeyed structures. In this study, we had performed nonlinear static analysis of the irregular frames, typically representing the vertical irregularities. The engineering demand parameters such as base shear, displacement, ductility, stiffness and inter-storey displacement were used to evaluate the performance of these frames. In addition an attempt has been made to correlate the damage state of frames with the identified performance level described in the performance-based seismic design documents.

Keywords:

Structural Irregularities, Nonlinear Static Procedures, Example MRFs, Engineering Demand Parameters

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