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Showing 1 to 20 of 39 for “"Fragility curves"”.
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Next generation seismic fragility curves for california bridges incorporating the evolution in seismic design philosophy
… This research developed next-generation fragility curves for four multispan concrete bridge classes by synthesizing new knowledge and emerging modeling capabilities, and by closely coordinating new and ongoing national research initiatives with expertise from bridge designers. A …
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Computational Modeling of Glass Curtain Wall Systems to Support Fragility Curve Development
… analytical results obtained were used to support fragility curve development which could aid in multi-hazard PBE design of CWs. A 3D finite element (FE) model of a single panel CW unit was generated including explicit modeling of the CW components and component interactions such as …
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Strategies for Seismic Assessment of Common Existing Reinforced Concrete Bridges Typologies
… after an earthquake by means of analytical fragility curves and inspections on the structure. In particular, the assessment is performed on existing reinforced concrete (RC) bridges with a common structural scheme in Italy (multi-span simply supported girder bridges). The framework is set up …
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Seismic Vulnerability Assessment of As-Built and Retrofitted Multi-Frame Box-Girder Bridges
… Fernando and Loma Prieta. However, the seismic fragility analysis of multi-frame bridges has not been sufficiently studied as other bridge types, and accordingly it is the focus of this study. Fragility curves are conditional probability statements that give the likelihood that a structure will …
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Impact of Cascadia Subduction Zone Earthquakes on Coastal Bridges in Washington State
… vulnerability and importance in the region. Fragility curves, which can be used to determine the likely damage state of a bridge given a ground motion intensity, were assigned for each bridge category. The selected fragility curves came from a variety of sources including from HAZUS as …
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Redundancy in Steel Braced Frames Under Seismic Excitations
… redundancy factors currently required by code. Fragility curves are also calculated for each building. Conclusions are drawn in order to contribute to future structural design.
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Seismic Performance and Damage Risk of Modular CLT Housing Using Nonlinear Time History Analysis
… studying (i) the variability of their collapse fragility curves across the U.S., (ii) the conditional probability of collapse under Maximum Considered Earthquake (MCE) intensities, and (iii) the unconditional probabilities of experiencing non-structural damage and collapse within 50 years for …
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Seismic Response and Analytical Fragility Functions for Curved Concrete Box-Girder Bridges
… (SRA) of lifeline systems. Thus, seismic fragility curves are essential input to SRA to estimate damage to highway bridges and consequently to the network. The literature review shows shortcomings in fragility studies on the effect of horizontal curvature of bridges, specifically concrete …
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Impact of complex system behavior on seismic assessment of RC bridges
… bridge vulnerability are assessed in this study. Fragility curves generated for bridges with varying parameters provides a means for assessing the probabilistic impact of these parameters on bridge response. A set of fragility curves capable of representing the true impact of complex geometry, …
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Reliability analysis of green roofs under different storm scenarios
… aid typically used in earthquake engineering: fragility curves. The 2D distributed surface water-groundwater coupled program MIKE SHE was used to model the runoff from a simple intensive green roof located on the University of Illinois at Urbana-Champaign (UIUC) campus under different storm …
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Development of Fragility Curve Database for Multi-Hazard Performance Based Design
… responses of structures subjected to hazard; 2) fragility curves; 3) consequence functions. Fragility curves were critically analyzed to determine the source and the process of development of the curves, but structural analysis results and consequence functions were not critically analyzed due to …
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Simulation-based fragility relationships for unreinforced masonry buildings
… there is a pressing need for analytically based fragility curves for URM buildings. In order to improve the estimation of damage state probabilities through the development of simulation-based masonry fragilities, an extensive literature survey is conducted on pushover analysis of URM structures. …
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Analysis of residential building performance in tornadoes as a function of building and hazard characteristics
… the modelled tornado speeds was used to create fragility curves for specific building characteristics to help fill in this gap in knowledge. The fragility curves provide some quantification of probabilities of damage as a function of tornado wind speed for features including roof geometry, …
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An integrated earthquake impact assessment system
… identification-based model updating, (vi) hybrid fragility analysis and (vii) impact assessment software. NISRAF has been built and demonstrated via applications to an actual test bed in the Los Angeles area. Based on an instrumented six-story steel moment resisting frame building and free-field …
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Quantifying the Life Cycle Benefits of Performance-Based Design in Sustainable Design
… work-in-progress status and limited quantity of fragility curves representing building components, results are questionable and expected to become more fine-tuned as the software develops and there is an increased availability of fragility curves.</p> <p>Using the PACT program, the difference in …
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Seismic fragility of buildings damaged by past earthquakes
Fragility analysis plays an important role in seismic risk assessment. Current fragility models of buildings are mostly focusing on the as-built condition of the structure while ignoring the possibility of having multiple earthquakes during the service life of the structure. However, considering …
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Seismic experimental analyses and surrogate models of multi-component systems in special-risk industrial facilities
… has been devoted to setting computational fragility frameworks for special-risk industrial components and structures. However, within a PBEE perspective, studies have clearly remarked: i) a lack of definition of performance objectives for NSCs; ii) the need for fully comprehensive testing …
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AN EQUIVALENT NON-UNIFORM INELASTIC BEAM-LIKE MODEL FOR THE SEISMIC VULNERABILITY ASSESSMENT OF BUILDINGS
… effectively used for a reliable construction of fragility curves. It has been highlighted that the obtained results for the beam-like model provide more accurate vulnerability assessments of new and existing buildings with respect to commonly used index-based assessments methods.
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