Seismic Performance Evaluation of Residential Structures in Egypt

Ibrahim, Yasser E.; Shallan, Osman; Elshihy, Ashraf; Selim, Mohamed Fouad

doi:10.4028/www.scientific.net/amr.919-921.945

Cited by 1 publication

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“…Fragility curves are always used in the seismic risk analysis [16], [17]. Also, they have been used as a tool for assessment of retrofitting option [18].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Seismic Retrofitting Techniques of RC Structures Using Fragility Curves

Mansour¹

2016

IJSCER

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 In order to study the efficacy of several seismic retrofitting techniques on the seismic performance of existing multistory reinforced concrete structures, finite element analysis is conducted using the finite element package, SeismoStruct. First, three models are considered; 4-story, 8-story and 12-story reinforced concrete framed structures designed according to Saudi Building Code (2007) for vertical loads and seismic forces for 0.2-second and 1.0second response spectral accelerations of 0.21g and 0.061g, respectively. Two conventional retrofitting techniques are considered to upgrade the structures to withstand seismic forces for 0.2-second and 1.0-second response spectral accelerations of 0.66g and 0.23g, respectively. These techniques are increasing the dimension of structural elements and attaching concentric steel braces at the middle bay of each story to the existing reinforced concrete frames. One more innovative retrofitting technique relying on adding passive control devices is considered in the analysis. Incremental dynamic analysis using records of twelve artificial and historic earthquakes is carried out. Fragility curves are developed for all original and retrofitted cases considering five different performance levels for the sake of the assessment of the effectiveness of different retrofitting techniques. Based on the results obtained, retrofitting existing reinforced concrete framed structures by adding concentric steel braces are the best technique that enhances their seismic performance, compared to other techniques.

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“…Fragility curves are always used in the seismic risk analysis [16], [17]. Also, they have been used as a tool for assessment of retrofitting option [18].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Seismic Retrofitting Techniques of RC Structures Using Fragility Curves

Mansour¹

2016

IJSCER

View full text Add to dashboard Cite

show abstract

Seismic Performance Evaluation of Residential Structures in Egypt

Cited by 1 publication

References 3 publications

Assessment of Seismic Retrofitting Techniques of RC Structures Using Fragility Curves

Assessment of Seismic Retrofitting Techniques of RC Structures Using Fragility Curves

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