scholarly journals Author Correction: Numerical Evaluation of Soil-Pile-Structure Interaction Effects in Nonlinear Analysis of Seismic Fragility Curves

2021 ◽  
Author(s):  
Nesrine Guettafi ◽  
Djarir Yahiaoui ◽  
Khelifa Abbeche ◽  
Tayeb Bouzid
Keyword(s):  
Nonlinear Analysis ◽  
Numerical Evaluation ◽  
Fragility Curves ◽  
Interaction Effects ◽  
Seismic Fragility ◽  
Structure Interaction

scholarly journals Seismic Fragility Curves of Industrial Buildings by Using Nonlinear Analysis

2017 ◽  
Vol 103 ◽  
pp. 02017
Author(s):  
Fadzli Mohamed Nazri ◽  
Syamimi Tahar ◽  
Siti Nur Aqilah Saruddin ◽  
Shahiron Shahidan
Keyword(s):  
Nonlinear Analysis ◽  
Fragility Curves ◽  
Seismic Fragility ◽  
Industrial Buildings

Seismic fragility assessment of multi-span concrete highway bridges in British Columbia considering soil–structure interaction

2021 ◽  
Vol 48 (1) ◽  
pp. 39-51 ◽  
Author(s):  
A.H.M. Muntasir Billah ◽  
M. Shahria Alam
Keyword(s):  
British Columbia ◽  
Soil Structure ◽  
Seismic Vulnerability ◽  
Structural Characteristics ◽  
Fragility Curves ◽  
Highway Bridges ◽  
System Level ◽  
Soil Structure Interaction ◽  
Seismic Fragility ◽  
Structure Interaction

Fragility curve is an effective tool for identifying the potential seismic risk and consequences during and after an earthquake. Recent seismic events have shown that bridges are highly sensitive and vulnerable during earthquakes. There has been limited research to evaluate the seismic vulnerability of the existing bridges in British Columbia (BC), which could help in the decision-making process for seismic upgrade. This study focuses on developing seismic fragility curves for typical multi-span continuous concrete girder bridges in BC. Ground motions compatible with the seismic hazard were used as input excitations for vulnerability assessment. Uncertainties in material and geometric properties were considered to represent the bridges with similar structural characteristics and construction period. The fragility of the bridge is largely attributable to the fragilities of the columns, and to a lesser extent, the abutment and bearing components. The results of this study show that, although not very significant, the soil–structure interaction has some effect on the component fragility where this effect is not very significant at the bridge system level.

scholarly journals Seismic Fragility Analysis of Buildings Based on Double-Parameter Damage Models considering Soil-Structure Interaction

2019 ◽  
Vol 2019 ◽  
pp. 1-13
Author(s):  
Panpan Zhai ◽  
Peng Zhao ◽  
Yang Lu ◽  
Chenying Ye ◽  
Feng Xiong
Keyword(s):  
Soil Structure ◽  
Fragility Curves ◽  
Damage Index ◽  
Fragility Analysis ◽  
Soil Structure Interaction ◽  
Seismic Fragility ◽  
Rc Buildings ◽  
Structure Interaction ◽  
Damage Models ◽  
Fixed Model

Most conventional seismic fragility analyses of RC buildings usually ignore or greatly simplify the soil-structure interaction (SSI), and the maximum interstory drift ratio (MIDR) is often adopted to establish seismic fragility curves. In this work, an eight-story RC building was designed to study the influence of the SSI on the seismic fragility of RC buildings. Three double-parameter damage models (DPDMs) were considered for the fragility assessment: the Park–Ang model, the Niu model, and the Lu–Wang model. Results show that considering SSI induces a higher fragility than that of the fixed model and that employing the DPDMs for the fragility analysis provides more reasonable results than those evaluated using the MIDR damage index.

scholarly journals Soil-structure interaction effects in analysis of seismic fragility of bridges using an intensity-based ground motion selection procedure

2017 ◽  
Vol 151 ◽  
pp. 366-380 ◽  
Author(s):  
Sotiria P. Stefanidou ◽  
Anastasios G. Sextos ◽  
Anastasios N. Kotsoglou ◽  
Nikolaos Lesgidis ◽  
Andreas J. Kappos
Keyword(s):  
Ground Motion ◽  
Soil Structure ◽  
Selection Procedure ◽  
Interaction Effects ◽  
Soil Structure Interaction ◽  
Seismic Fragility ◽  
Ground Motion Selection ◽  
Structure Interaction

Effect of Soil-Structure Interaction on the Seismic Fragility of a Nuclear Reactor Building

2018 ◽  
Vol 4 (2) ◽  
Author(s):  
Samer El-Bahey ◽  
Yasser Alzeni ◽  
Konstantinos Oikonomou
Keyword(s):  
Soil Structure ◽  
Power Plants ◽  
Fragility Curves ◽  
Free Field ◽  
Nuclear Industry ◽  
Soil Structure Interaction ◽  
Seismic Fragility ◽  
Lumped Mass ◽  
Structure Interaction ◽  
Reactor Building

Recently, the nuclear industry has made a tremendous effort to assess the safety of nuclear power plants (NPP), as advances in seismology have led to the perception that the potential earthquake hazard in the U.S. may be higher than originally assumed. Due to the conservatism in the NPP design, structures and safety-related items are capable of withstanding earthquakes larger than the safe shutdown earthquake (SSE). One major aspect of conservatism in the design is ignoring the effect of soil-structure interaction (SSI), which results in conservative estimates of seismic demands for plant equipment. In this paper, a typical reactor building (RB) is chosen for a case study to investigate the potential benefit of accounting for SSI effects. A lumped mass stick model is first developed and analyzed with a fixed base configuration, using the free-field ground motion as input at the foundation level, as well as with a SSI configuration. Fragility analyses are then performed for the RB and one of its components to quantify the effects of the SSI on the overall seismic risk. In each case, a family of seismic fragility curves is developed. It is found that consideration of SSI effects in the analysis can improve the component fragilities, and potentially enhance the core damage frequency (CDF) of the plant.

scholarly journals Seismic Fragility Analysis of Low-Rise RC Buildings with Brick Infills in High Seismic Region with Alluvial Deposits

Buildings ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 72
Author(s):  
Rabindra Adhikari ◽  
Rajesh Rupakhety ◽  
Prajwal Giri ◽  
Rewati Baruwal ◽  
Ramesh Subedi ◽  
...  
Keyword(s):  
Soil Structure ◽  
Seismic Vulnerability ◽  
Interaction Effects ◽  
Vulnerability Analysis ◽  
Soil Structure Interaction ◽  
Seismic Fragility ◽  
Rc Buildings ◽  
Infill Walls ◽  
Structure Interaction ◽  
Seismic Vulnerability Analysis

Most of the reinforced concrete buildings in Nepal are low-rise construction, as this type of construction is the most dominant structural form adopted to construct residential buildings in urban and semi-urban neighborhoods throughout the country. The low-rise residential constructions generally follow the guidelines recommended by the Nepal Building Code, especially the mandatory rules of thumb. Although low-rise buildings have brick infills and are randomly constructed, infill walls and soil–structure interaction effects are generally neglected in the design and assessment of such structures. To this end, bare frame models that are used to represent such structures are questionable, especially when seismic vulnerability analysis is concerned. To fulfil this gap, we performed seismic vulnerability analysis of low-rise residential RC buildings considering infill walls and soil–structure interaction effects. Considering four analysis cases, we outline comparative seismic vulnerability for various analysis cases in terms of fragility functions. The sum of observations highlights that the effects of infills, and soil–structure interaction are damage state sensitive for low-rise RC buildings. Meanwhile, the design considerations will be significantly affected since some performance parameters are more sensitive than the overall fragility. We also observed that the analytical fragility models fundamentally overestimate the actual seismic fragility in the case of low-rise RC buildings.

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