Seismic performance of torsionally stiff and flexible multi-story concentrically steel braced buildings
SUMMARY It is expected that application of torsion provisions in typical seismic codes shows different levels of efficiency for torsionally stiff and flexible buildings. This paper studies difference in performances of a range of code designed torsionally stiff and flexible five‐story building model...
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| Veröffentlicht in: | The structural design of tall and special buildings 2014-02, Vol.23 (2), p.146-160 |
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| container_title | The structural design of tall and special buildings |
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| creator | Haj Seiyed Taghia, S. A. Moghadam, A. S. Ghafory Ashtiany, M. |
| description | SUMMARY
It is expected that application of torsion provisions in typical seismic codes shows different levels of efficiency for torsionally stiff and flexible buildings. This paper studies difference in performances of a range of code designed torsionally stiff and flexible five‐story building models. The models are classified in eight configurations to cover common range of buildings designed with the seismic provisions of Iranian Standard 2800 as a typical seismic design code. Seismic nonlinear dynamic time history behavior of eight building models subjected to seven horizontal bi‐directional design spectra compatible ground motions is investigated. These models cover a wide band of very torsionally stiff to very flexible buildings. Response parameters are element ductility demand and building story drift ratio. These criteria are appropriate indices for structural and nonstructural damages, respectively. The results indicate that the present linear static procedure of building codes such as the Iranian Standard 2800 is not generally adequate for structures with very low torsional stiffness. Copyright © 2012 John Wiley & Sons, Ltd. |
| doi_str_mv | 10.1002/tal.1031 |
| format | Article |
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It is expected that application of torsion provisions in typical seismic codes shows different levels of efficiency for torsionally stiff and flexible buildings. This paper studies difference in performances of a range of code designed torsionally stiff and flexible five‐story building models. The models are classified in eight configurations to cover common range of buildings designed with the seismic provisions of Iranian Standard 2800 as a typical seismic design code. Seismic nonlinear dynamic time history behavior of eight building models subjected to seven horizontal bi‐directional design spectra compatible ground motions is investigated. These models cover a wide band of very torsionally stiff to very flexible buildings. Response parameters are element ductility demand and building story drift ratio. These criteria are appropriate indices for structural and nonstructural damages, respectively. The results indicate that the present linear static procedure of building codes such as the Iranian Standard 2800 is not generally adequate for structures with very low torsional stiffness. Copyright © 2012 John Wiley & Sons, Ltd.</description><identifier>ISSN: 1541-7794</identifier><identifier>EISSN: 1541-7808</identifier><identifier>DOI: 10.1002/tal.1031</identifier><language>eng</language><publisher>Oxford: Blackwell Publishing Ltd</publisher><subject>Braced ; Building codes ; Buildings ; Demand ; nonlinear dynamic analysis ; Nonlinear dynamics ; performance level ; Seismic design ; Seismic response ; Standard 2800 ; story drift ratio ; torsionally flexible ; torsionally stiff</subject><ispartof>The structural design of tall and special buildings, 2014-02, Vol.23 (2), p.146-160</ispartof><rights>Copyright © 2012 John Wiley & Sons, Ltd.</rights><rights>Copyright © 2014 John Wiley & Sons, Ltd.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3641-c11be8891dc903249a76e7498bda80fa870bfb82dea154fe15ed99a24e2f41603</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Ftal.1031$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Ftal.1031$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,27901,27902,45550,45551</link.rule.ids></links><search><creatorcontrib>Haj Seiyed Taghia, S. A.</creatorcontrib><creatorcontrib>Moghadam, A. S.</creatorcontrib><creatorcontrib>Ghafory Ashtiany, M.</creatorcontrib><title>Seismic performance of torsionally stiff and flexible multi-story concentrically steel braced buildings</title><title>The structural design of tall and special buildings</title><addtitle>Struct. Design Tall Spec. Build</addtitle><description>SUMMARY
It is expected that application of torsion provisions in typical seismic codes shows different levels of efficiency for torsionally stiff and flexible buildings. This paper studies difference in performances of a range of code designed torsionally stiff and flexible five‐story building models. The models are classified in eight configurations to cover common range of buildings designed with the seismic provisions of Iranian Standard 2800 as a typical seismic design code. Seismic nonlinear dynamic time history behavior of eight building models subjected to seven horizontal bi‐directional design spectra compatible ground motions is investigated. These models cover a wide band of very torsionally stiff to very flexible buildings. Response parameters are element ductility demand and building story drift ratio. These criteria are appropriate indices for structural and nonstructural damages, respectively. The results indicate that the present linear static procedure of building codes such as the Iranian Standard 2800 is not generally adequate for structures with very low torsional stiffness. Copyright © 2012 John Wiley & Sons, Ltd.</description><subject>Braced</subject><subject>Building codes</subject><subject>Buildings</subject><subject>Demand</subject><subject>nonlinear dynamic analysis</subject><subject>Nonlinear dynamics</subject><subject>performance level</subject><subject>Seismic design</subject><subject>Seismic response</subject><subject>Standard 2800</subject><subject>story drift ratio</subject><subject>torsionally flexible</subject><subject>torsionally stiff</subject><issn>1541-7794</issn><issn>1541-7808</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqN0UtLAzEQB_BFFKxV8CMEvHhZzWMfybGItmpRwYrHkM1OJJrdrcku2m9van2AJ08zh98MyfyT5JDgE4IxPe2Viw0jW8mI5BlJS4759ndfimw32QvhGWMicM5GydM92NBYjZbgTecb1WpAnUF954PtWuXcCoXeGoNUWyPj4N1WDlAzuN6mIaoV0l2caXtv9ZcGcKjySkONqsG62rZPYT_ZMcoFOPiq4-Th4nxxNkvnt9PLs8k81ayIL9SEVMC5ILUWmNFMqLKAMhO8qhXHRvESV6bitAYVf2SA5FALoWgG1GSkwGycHG_2Ln33OkDoZWODBudUC90QJCkyWlAmCvYvSkvOP-nRH_rcDT5eZ61KxnOOSRFVulFv1sFKLr1tlF9JguU6GRmTketk5GIyX9dfb-PN3n-88i8yLi1z-XgzlbP5NZtd3VGJ2Qd1_5Jg</recordid><startdate>20140210</startdate><enddate>20140210</enddate><creator>Haj Seiyed Taghia, S. 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S.</au><au>Ghafory Ashtiany, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Seismic performance of torsionally stiff and flexible multi-story concentrically steel braced buildings</atitle><jtitle>The structural design of tall and special buildings</jtitle><addtitle>Struct. Design Tall Spec. Build</addtitle><date>2014-02-10</date><risdate>2014</risdate><volume>23</volume><issue>2</issue><spage>146</spage><epage>160</epage><pages>146-160</pages><issn>1541-7794</issn><eissn>1541-7808</eissn><abstract>SUMMARY
It is expected that application of torsion provisions in typical seismic codes shows different levels of efficiency for torsionally stiff and flexible buildings. This paper studies difference in performances of a range of code designed torsionally stiff and flexible five‐story building models. The models are classified in eight configurations to cover common range of buildings designed with the seismic provisions of Iranian Standard 2800 as a typical seismic design code. Seismic nonlinear dynamic time history behavior of eight building models subjected to seven horizontal bi‐directional design spectra compatible ground motions is investigated. These models cover a wide band of very torsionally stiff to very flexible buildings. Response parameters are element ductility demand and building story drift ratio. These criteria are appropriate indices for structural and nonstructural damages, respectively. The results indicate that the present linear static procedure of building codes such as the Iranian Standard 2800 is not generally adequate for structures with very low torsional stiffness. Copyright © 2012 John Wiley & Sons, Ltd.</abstract><cop>Oxford</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/tal.1031</doi><tpages>15</tpages></addata></record> |
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| ispartof | The structural design of tall and special buildings, 2014-02, Vol.23 (2), p.146-160 |
| issn | 1541-7794 1541-7808 |
| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Braced Building codes Buildings Demand nonlinear dynamic analysis Nonlinear dynamics performance level Seismic design Seismic response Standard 2800 story drift ratio torsionally flexible torsionally stiff |
| title | Seismic performance of torsionally stiff and flexible multi-story concentrically steel braced buildings |
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