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Web End = Bull Earthquake Eng (2017) 15:16811706 DOI 10.1007/s10518-016-0039-9
http://crossmark.crossref.org/dialog/?doi=10.1007/s10518-016-0039-9&domain=pdf
Web End = ORIGINAL RESEARCH PAPER
Estimation of repair costs for RC and masonry residential buildings based on damage data collected by post-earthquake visual inspection
G. De Martino1 M. Di Ludovico1 A. Prota1
C. Moroni2 G. Manfredi1 M. Dolce2
Received: 21 March 2016 / Accepted: 23 October 2016 / Published online: 2 November 2016 Springer Science+Business Media Dordrecht 2016
Abstract In the immediate post-earthquake, the safety conditions of buildings are commonly evaluated by eld visual inspections. Then, a second phase involves the design of repair interventions and the relevant funding requests to the government or to insurance companies. The paper discusses the data related to the 2009 LAquila earthquake, focusing on the empirical damage and relevant Actual Repair Costs (ARC) of damaged residential buildings derived from requests for funding presented by practitioners engaged by owners in the reconstruction process. In particular, the data collected from a set of 2500 residential Reinforced Concrete (RC) and masonry buildings are presented focussing on the construction age, number of storeys, damage extent on structural components and ARC. A damage index for each building component has been computed according to data collected by eld inspections and the relationship between damage index and different classes of buildings is herein outlined. Then, a correlation between the empirical damage and ARC is determined by means of a regression analysis. The proposed relationship between empirical damage and ARC may drive decision makers, in the immediate post-earthquake, to make preliminary estimates of the repair costs, only based on quick surveys on residential buildings. The relationship may also be used as a tool to gure out repair costs based on damage scenarios.
Keywords Repair costs Empirical damage Visual inspection Post-earthquake
Vulnerability RC buildings Masonry buildings
& G. De Martino [email protected]
1 Department of Structures for Engineering and Architecture, University of Naples Federico II,Via Claudio, 21, 80125 Naples, Italy
2 Civil Protection Department, Rome, Italy
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1 Introduction
Strong earthquakes may damage structures and infrastructure at large scale, severely compromising the usability of many residential buildings. In order to determine whether the buildings can be safely used in view of aftershocks and to quantify the number of homeless, the...