A STUDY ON AN OVERALL AREAL SEISMIC RISK POTENTIAL ESTIMATION BASED ON FAULT DATA : A case study of seismic risk potential of buildings in Tokushima prefecture

2000 ◽  
Vol 65 (527) ◽  
pp. 181-187
Author(s):  
Kiyomine TERUMOTO ◽  
Toshio MOCHIZUKI
Keyword(s):  
Seismic Risk ◽  
Risk Potential

SEISMIC RISK AND RESILIENCE ASSESSMENT OF INDUSTRIAL FACILITIES: CASE STUDY ON A BLACK CARBON PLANT

2020 ◽  
Author(s):  
George Karagiannakis
Keyword(s):  
Seismic Risk ◽  
Numerical Models ◽  
Fragility Curves ◽  
Human Life ◽  
Mitigation Strategies ◽  
Economic Losses ◽  
Risk And Resilience ◽  
Industrial Plants ◽  
Plant Equipment

This paper deals with state of the art risk and resilience calculations for industrial plants. Resilience is a top priority issue on the agenda of societies due to climate change and the all-time demand for human life safety and financial robustness. Industrial plants are highly complex systems containing a considerable number of equipment such as steel storage tanks, pipe rack-piping systems, and other installations. Loss Of Containment (LOC) scenarios triggered by past earthquakes due to failure on critical components were followed by severe repercussions on the community, long recovery times and great economic losses. Hence, facility planners and emergency managers should be aware of possible seismic damages and should have already established recovery plans to maximize the resilience and minimize the losses. Seismic risk assessment is the first step of resilience calculations, as it establishes possible damage scenarios. In order to have an accurate risk analysis, the plant equipment vulnerability must be assessed; this is made feasible either from fragility databases in the literature that refer to customized equipment or through numerical calculations. Two different approaches to fragility assessment will be discussed in this paper: (i) code-based Fragility Curves (FCs); and (ii) fragility curves based on numerical models. A carbon black process plant is used as a case study in order to display the influence of various fragility curve realizations taking their effects on risk and resilience calculations into account. Additionally, a new way of representing the total resilience of industrial installations is proposed. More precisely, all possible scenarios will be endowed with their weighted recovery curves (according to their probability of occurrence) and summed together. The result is a concise graph that can help stakeholders to identify critical plant equipment and make decisions on seismic mitigation strategies for plant safety and efficiency. Finally, possible mitigation strategies, like structural health monitoring and metamaterial-based seismic shields are addressed, in order to show how future developments may enhance plant resilience. The work presented hereafter represents a highly condensed application of the research done during the XP-RESILIENCE project, while more detailed information is available on the project website https://r.unitn.it/en/dicam/xp-resilience.

Collaborative project planning: A case study of seismic risk analysis using an e-engineering hub

2006 ◽  
Vol 57 (3) ◽  
pp. 218-230 ◽  
Author(s):  
Z. Ren ◽  
C.J. Anumba ◽  
T.M. Hassan ◽  
G. Augenbroe ◽  
M. Mangini
Keyword(s):  
Risk Analysis ◽  
Seismic Risk ◽  
Project Planning ◽  
Seismic Risk Analysis ◽  
Collaborative Project

scholarly journals Quantifying Delay Risk Potential of Road Projects during Construction Phase: A Case Study

2019 ◽  
Vol 280 ◽  
pp. 05009
Author(s):  
Devi Anggraini ◽  
Jati Utomo Dwi Hatmoko ◽  
Mudjiastuti Handajani
Keyword(s):  
Assessment Instrument ◽  
Structured Interviews ◽  
Risk Levels ◽  
Project Completion ◽  
Road Project ◽  
Completion Date ◽  
Road Projects ◽  
Project Risks ◽  
Risk Potential

A comprehensive plan is required to anticipate risks in a construction project. In practice, however, anticipated or unanticipated risks may eventually lead to delays in the project completion date. The aim of this research is to quantify the delay risk potential of a road project during the construction phase. A project at Batang-Kendal road has carried out thorough planning for all required aspects. However, in the implementation of a project, there is often the occurrence of irregular events, which act as a case study for this research, from which delays were identified, observations mapped and semi-structured interviews conducted with project stakeholders, i.e. owner, contractors and supervisory consultants. An instrument was developed to assess and quantify the project risks identified using a 1 to 5 Likert scale. The results showed nine types of delay risks and 32 sub risks. The quantification of these risks was classified into four risk levels, i.e. extreme (6.25%), high (53.13%), medium (34.37%) and low (6.25%). These findings may represent delay risk potentials of typical road projects during the construction phase, from which lessons can be learned. The assessment instrument proposed can also be used for other road projects, which will be beneficial for project stakeholders in anticipating delay risk potentials.

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