Seismic Vulnerability Assessment of Reinforced Concrete Frame with Masonry Infill Buildings in New Zealand PDF Download

Author: Rijalul Fikri
Publisher:
ISBN:
Category : Earthquake resistant design
Languages : en
Pages : 218

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Book Description
A reinforced concrete frame with a masonry infill (RCFMI) construction system is one class of building type that is considered to be potentially earthquake-prone in New Zealand. This type of construction system comprises a significant proportion of commercial buildings constructed prior to the adoption of New Zealand’s modern seismic design codes in 1976. Despite the significant number of these buildings across New Zealand, the architectural characteristics and seismic performance of RCFMI buildings have not been comprehensively investigated at a national level. This uncertain earthquake vulnerability indicates potential risk during an earthquake event, which could endanger building occupants or nearby pedestrians. The reported study was undertaken to comprehensively examine the architectural characteristics of New Zealand’s RCFMI buildings and to estimate the seismic vulnerability of these buildings in future earthquakes. This study began by observing the seismic performance of RCFMI buildings in the 2010/ 2011 Canterbury earthquakes. The typical failure modes of RCFMI buildings were well-documented, and the damaged RCFMI buildings were assigned to various damage states. Empirical fragility curves were then generated to estimate the probability of exceeding a given damage state as a function of Peak Ground Acceleration (PGA). The second stage of the study reported herein was to develop RCFMI building inventory and to document the typical architectural characteristics of these buildings by undertaking side-walk survey in various areas of the Auckland region and in the City Centre of Dunedin. The third stage of the study was to investigate the appropriate seismic assessment methodology for RCFMI buildings using commercial software by modelling damage RCFMI buildings subjected to the Canterbury earthquakes. The fourth stage of the study was to evaluate the seismic behaviour of mid-rise RCFMI buildings in the Canterbury earthquakes and to generate analytical fragility curves using Incremental Dynamic Analysis. The final stage of this study was to develop earthquake scenario employing different earthquake intensities in order to estimate the seismic vulnerability of RCFMI buildings in future earthquakes.