Loss assessment of wind-induced damage for residential buildings groups based on engineering vulnerability

2021 ◽  
pp. 102435
Author(s):  
Mingxin Li ◽  
Guoxin Wang ◽  
Xiurong Yang ◽  
Fujiang Yang
Keyword(s):  
Residential Buildings ◽  
Loss Assessment

scholarly journals Exposure and loss assessment of soil liquefaction in coastal area of Kulon Progo, Indonesia

2020 ◽  
Vol 200 ◽  
pp. 02008
Author(s):  
Ghiffari Rizki ◽  
Rachmawati Rini ◽  
Rijanta Raden
Keyword(s):  
Residential Buildings ◽  
Vertical Displacement ◽  
Lateral Spreading ◽  
Soil Liquefaction ◽  
Transport Infrastructure ◽  
Susceptibility Map ◽  
Loss Assessment ◽  
High Exposure ◽  
Liquefaction Hazard ◽  
Study Results

Soil Liquefaction is a phenomenon of loss of strength of the granural soil layers due to increased pore water stress caused by earthquake shocks. Soil liquefaction can cause material and life damage if occurs in the developed area. Kulon Progo Regency based on the Atlas of Liquefaction Susceptibility Zones in 2019, has high susceptibility zones, which has the potential for flow liquefaction, lateral spreading, vertical displacement, and sand boil. This study aims to assess the exposure and loss index in liquefaction hazard zone based on the characteristics of land use and social demographic. The exposure index is obtained from overlaying between susceptibility map and liquefaction exposure variables, when the loss assessment is done by simulating the losses in several earthquake moment magnitude scenarios. Study results show that high exposure surrounding the residential zone in the south of the Wates Urban Area and the construction location of the Yogyakarta International Airport. There are settlement areas potentially affected by lateral spreading in Glagah, Karangwuni, Banaran, and Karangsewu Villages. While the results of the loss assessment show that transport infrastructure and residential buildings are the most affected objects when liquefaction phenomena occur due to the earthquake. Managing the expansion of settlement area through zoning regulation and technical engineering approach is needed to reduce losses due to future liquefaction phenomenon.

scholarly journals Earthquake Physical Risk/Loss Assessment Models and Applications: A Case Study on Content Loss Modeling Conditioned on Building Damage

2021 ◽  
pp. 223-237
Author(s):  
S. Akkar
Keyword(s):  
Residential Buildings ◽  
Epistemic Uncertainty ◽  
Monte Carlo Sampling ◽  
Building Damage ◽  
Loss Assessment ◽  
Damage State ◽  
Novel Approach ◽  
Physical Risk ◽  
Damage States

AbstractThis paper presents a novel approach to develop content fragility conditioned on building damage for contents used in residential buildings in Turkey. The approach combines the building damage state probabilities with the content damage probabilities conditioned on building damage states to develop the content fragilities. The paper first presents the procedure and then addresses the epistemic uncertainty in building and content fragilities to show their effects on the content vulnerability. The approach also accounts for the expert opinion differences in the content replacement cost ratios (consequence functions) as part of the epistemic uncertainty. Monte Carlo sampling is used to consider the epistemic uncertainty in each model component contributing to the content vulnerability. A sample case study is presented at the end of the paper to show the implementation of the developed content fragilities by calculating the average annual loss ratio (AALR) distribution of residential content loss over the mainland Turkey.

scholarly journals Residential Flood Loss Assessment and Risk Mapping from High-Resolution Simulation

Water ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 751 ◽  
Author(s):  
Afifi ◽  
Chu ◽  
Kuo ◽  
Hsu ◽  
Wong ◽  
...  
Keyword(s):  
High Resolution ◽  
Residential Buildings ◽  
Flood Disaster ◽  
Assessment Model ◽  
Risk Level ◽  
Residential Areas ◽  
Loss Assessment ◽  
Flood Loss ◽  
Resolution Model ◽  
Direct Loss

Since the patterns of residential buildings in the urban area are small-sized and dispersed, this study proposes a high-resolution flood loss and risk assessment model to analyze the direct loss and risk impacts caused by floods. The flood inundation simulation with a fine digital elevation model (DEM) provides detailed estimations of flood-inundated areas and their corresponding inundation depths during the 2016 Typhoon Megi and 2017 Typhoon Haitang. The flood loss assessment identifies the impacts of both events on residential areas. The depth-damage table from surveys in the impacted area was applied. Results indicated that the flood simulation with the depth-damage table is an effective way to assess the direct loss of a flood disaster. The study also showed the effects of spatial resolution on the residential loss. The results indicated that the low-resolution model easily caused the estimated error of loss in dispersed residential areas when compared with the high-resolution model. The analytic hierarchy process (AHP), as a multi-criteria decision-making method, was used to identify the weight factor for each vulnerability factor. The flood-vulnerable area was mapped using natural and social vulnerability factors, such as high-resolution DEM, distance to river, distance to fire station, and population density. Eventually, the flood risk map was derived from the vulnerability and flood hazard maps to present the risk level of the flood disaster in the residential areas.

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