Functionality measures for quantification of building seismic resilience index

2022 ◽  
Vol 253 ◽  
pp. 113800
Author(s):  
Juan Gustavo Salado Castillo ◽  
Michel Bruneau ◽  
Negar Elhami-Khorasani
Keyword(s):  
Resilience Index ◽  
Seismic Resilience

Evaluation of seismic resilience index for typical RC school buildings considering carbonate corrosion effects

2020 ◽  
Vol 46 ◽  
pp. 101511 ◽  
Author(s):  
Zahra Shamsoddini Motlagh ◽  
Morteza Raissi Dehkordi ◽  
Mahdi Eghbali ◽  
Delbaz Samadian
Keyword(s):  
School Buildings ◽  
Resilience Index ◽  
Seismic Resilience

scholarly journals Building Information Modeling Methods for Post-Earthquake Retrofitting Visualization of Buildings Using Augmented Reality

2021 ◽  
Vol 11 (12) ◽  
pp. 5739
Author(s):  
Zhansheng Liu ◽  
Wenyan Bai
Keyword(s):  
Augmented Reality ◽  
Building Information Modeling ◽  
Repair Process ◽  
Information Modeling ◽  
Three Dimensions ◽  
Visualization Process ◽  
Building Information ◽  
Key Factor ◽  
Technical Solutions ◽  
Seismic Resilience

The post-earthquake retrofitting and repair process of a building is a key factor in improving its seismic capability. A thorough understanding of retrofitting methods and processes will aid in repairing post-earthquake buildings and improving seismic resilience. This study aims to develop a visualization framework for the post-earthquake retrofitting of buildings which builds models based on building information modeling (BIM) and realizes visualization using augmented reality (AR). First, multi-level representation methods and coding criteria are used to process the models for a damaged member. Then, an information collection template is designed for integrating multi-dimensional information, such as damage information, retrofitting methods, technical solutions, and construction measures. Subsequently, a BIM model is presented in three dimensions (3D) using AR. Finally, the visualization process is tested through experiments, which demonstrate the feasibility of using the framework to visualize the post-earthquake retrofitting of a building.

scholarly journals Fleet Resilience: Evaluating Maintenance Strategies in Critical Equipment

2020 ◽  
Vol 11 (1) ◽  
pp. 38
Author(s):  
Orlando Durán ◽  
Javier Aguilar ◽  
Andrea Capaldo ◽  
Adolfo Arata
Keyword(s):  
Application Study ◽  
System Availability ◽  
Maintenance Strategies ◽  
Resilience Index ◽  
Reliability Block Diagrams ◽  
Maintenance Policies ◽  
Definition Of ◽  
The Impact ◽  
Important System ◽  
Intrinsic Characteristic

Resilience is an intrinsic characteristic of systems. Through it, the capacity of a system to react to the existence of disruptive events is expressed. A series of metrics to represent systems’ resilience have been proposed, however, only one indicator relates the availability of the system to this characteristic. With such a metric, it is possible to relate the topological aspects of a system and the resources available in order to be able to promptly respond to the loss of performance as a result of unexpected events. This work proposes the adaptation and application of such a resilience index to assess the influence of different maintenance strategies and topologies in fleets’ resilience. In addition, an application study considering an actual mining fleet is provided. A set of critical assets was identified and represented using reliability block diagrams. Monte Carlo simulation experiments were conducted and the system availability data were extracted. Resilience indexes were obtained in order to carry out the definition of the best maintenance policies in critical equipment and the assessment of the impact of modifying system redundancies. The main results of this work lead to the overall conclusion that redundancy is an important system attribute in order to improve resiliency along time.

scholarly journals Comprehensive Assessment Indicator of Ecosystem Resilience in Central Asia

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 124
Author(s):  
Xue Fan ◽  
Xingming Hao ◽  
Haichao Hao ◽  
Jingjing Zhang ◽  
Yuanhang Li
Keyword(s):  
Central Asia ◽  
Net Primary Productivity ◽  
Ecosystem Resilience ◽  
Mountainous Areas ◽  
Grassland Vegetation ◽  
High Coverage ◽  
Casa Model ◽  
Assessment Indicator ◽  
Multiple Dimensions ◽  
Resilience Index

The ecosystems in the arid inland areas of Central Asia are fragile and severely degraded. Understanding and assessing ecosystem resilience is a challenge facing ecosystems. Based on the net primary productivity (NPP) data estimated by the CASA model, this study conducted a quantitative analysis of the ecosystem’s resilience and comprehensively reflected its resilience from multiple dimensions. Furthermore, a comprehensive resilience index was constructed. The result showed that plain oasis’s ecosystem resilience is the highest, followed by deserts and mountainous areas. From the perspective of vegetation types, the highest resilience is artificial vegetation and the lowest is forest. In warm deserts, the resilience is higher in shrubs and meadows and lower in grassland vegetation. High coverage and biomass are not the same as the strong adaptability of the ecosystem. Moderate and slightly inelastic areas mainly dominate the ecosystem resilience of the study area. The new method is easy to use. The evaluation result is reliable. It can quantitatively analyze the resilience latitude and recovery rate, a beneficial improvement to the current ecosystem resilience evaluation.

Seismic Resilience of Deteriorating RC Bridges and Road Networks under Climate Change

2019 ◽  
Author(s):  
Luca Capacci ◽  
Fabio Biondini
Keyword(s):  
Climate Change ◽  
Life Cycle ◽  
Transportation Network ◽  
Road Networks ◽  
Progressive Increase ◽  
Seismic Capacity ◽  
Physical Damage ◽  
Rc Structures ◽  
Deterioration Rate ◽  
Seismic Resilience

<p>This paper investigates the life-cycle seismic resilience of aging road networks with reinforced concrete (RC) bridges under the effects of climate change. The physical damage suffered by the exposed bridges is related to traffic limitations implemented over the network. A probabilistic framework is proposed to aggregate the time-variant seismic capacity assessment of RC structures exposed to chloride-induced corrosion with the traffic response of the transportation network. The life-cycle seismic resilience of a simple road network is evaluated based on the restoration of the network functionality guaranteed by the post-event recovery of the damaged bridge. The results highlight the detrimental effects of the progressive increase in the deterioration rate induced by climate change, impairing the seismic capacity of single bridges and, in turn, the seismic resilience of the overall transportation system.</p>

The Rakaia Gorge bridge deck replacement and seismic strengthening

2021 ◽  
Author(s):  
Peter Routledge ◽  
Andrew Bradfield
Keyword(s):  
Traffic Management ◽  
Load Capacity ◽  
Heritage Preservation ◽  
Unusual Structure ◽  
Wrought Iron ◽  
State Highway ◽  
Conflicting Objectives ◽  
Innovative Solutions ◽  
Seismic Resilience ◽  
Important Structure

<p>The Rakaia Gorge No. 1 Bridge on SH77 is a Category 1 Historic Place constructed circa 1882. The 55m span ‘Bollman-like’ truss is recognised as unique in the world and is also one of the oldest wrought iron bridges in New Zealand. To ensure that this important structure continued to provide a safe and resilient transport route, the deteriorating timber deck required replacement. Some innovative solutions were required to resolve the numerous challenges presented by this unusual structure related to load capacity, heritage effects, operational safety, seismic resilience, constructability and traffic management. The project sensitively balanced the conflicting objectives of state highway operations and heritage preservation – refurbishing the deck and providing seismic resilience to this strategically important structure, whilst respecting the heritage significance and successfully preserving the exceptional landmark appearance of the bridge.</p>

SERVICEABILITY OF NATURAL GAS DISTRIBUTION NETWORKS AFTER EARTHQUAKES

2013 ◽  
Vol 07 (02) ◽  
pp. 1350005 ◽  
Author(s):  
GIAN PAOLO CIMELLARO ◽  
ALESSANDRO DE STEFANO ◽  
OMAR VILLA
Keyword(s):  
Natural Gas ◽  
Distribution Network ◽  
Distribution Networks ◽  
Small Towns ◽  
Disaster Resilience ◽  
Gas Distribution ◽  
Gas Network ◽  
Resilience Index ◽  
Entire Network

The concept of disaster resilience has received considerable attention in recent years and it is increasingly used as an approach for understanding the dynamics of natural disaster systems. No models are available in literature to measure the performance of natural gas network, therefore, in this paper, a new performance index measuring functionality of gas distribution network have been proposed to evaluate the resilience index of the entire network. It can be used for any type of natural or manmade hazard which might lead to the disruption of the system. The gas distribution network of the municipalities of Introdacqua and Sulmona, two small towns in the center of Italy which were affected by 2009 earthquake have been used as case study. Together the pipeline network covers an area of 136 km2, with 3 M/R stations and 16 regulation groups. The software SynerGEE has been used to simulate different scenario events. The numerical results showed that, during emergency, to ensure an acceptable delivery service, it is crucial to guarantee the functionality of the medium pressure gas distribution network. Instead to improve resilience of the entire network the best retrofit strategy is to include emergency shutoff valves along the pipes.

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