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Energy Dissipation and Local, Story, and Global Ductility Reduction Factors in Steel Frames under Vibrations Produced by Earthquakes
المؤلفون المشاركون
Reyes-Salazar, Alfredo
Bojórquez, Juan
Valenzuela-Beltran, Federico
Llanes-Tizoc, Mario D.
Bojórquez, Edén
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-19، 19ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-10-14
دولة النشر
مصر
عدد الصفحات
19
التخصصات الرئيسية
الملخص EN
Ductility plays a central role in seismic analysis and design of steel buildings.
A numerical investigation regarding the evaluation of energy dissipation, ductility, and ductility reduction factors for local, story, and global structural levels is conducted.
Some steel buildings and strong motions, which were part of the SAC Steel Project, are used.
Bending local ductility capacity (µLϕ) of beams can reach values of up to 20, as shown in experimental investigations.
The values are larger for medium than for low-rise buildings, reflecting the effect of the structural complexity on µLϕ.
Most of the dissipated energy occurs on beams; however, resultant stresses at columns are also significantly reduced by beam yielding.
A value of 1/3 is proposed for the ratio of global to local ductility; thus, if local ductility capacity is stated as the basis for the design, global ductility capacity can be calculated by using this ratio.
It is implicitly assumed in seismic codes that the magnitude of the global ductility reduction factor is about 4; according to the results found in this paper, it is not justified; a value of 3 is observed to be more reasonable.
According to the well-known ratio of the ductility reduction factor to ductility, this ratio should be unity for the models under consideration; the results of this study indicate that, for global response parameters, a value of 3/4 is more appropriate and that, for local response parameters, values larger than 2 can be reached; the implication of this is that using simplified methods like the static equivalent lateral force may result in nonconservative designs from a global structural point of view, but in conservative designs from a local point of view.
A value of 8 is proposed for the ratio of the global ductility reduction factor to the global normalized energy.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Reyes-Salazar, Alfredo& Bojórquez, Edén& Bojórquez, Juan& Valenzuela-Beltran, Federico& Llanes-Tizoc, Mario D.. 2018. Energy Dissipation and Local, Story, and Global Ductility Reduction Factors in Steel Frames under Vibrations Produced by Earthquakes. Shock and Vibration،Vol. 2018, no. 2018, pp.1-19.
https://search.emarefa.net/detail/BIM-1215569
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Reyes-Salazar, Alfredo…[et al.]. Energy Dissipation and Local, Story, and Global Ductility Reduction Factors in Steel Frames under Vibrations Produced by Earthquakes. Shock and Vibration No. 2018 (2018), pp.1-19.
https://search.emarefa.net/detail/BIM-1215569
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Reyes-Salazar, Alfredo& Bojórquez, Edén& Bojórquez, Juan& Valenzuela-Beltran, Federico& Llanes-Tizoc, Mario D.. Energy Dissipation and Local, Story, and Global Ductility Reduction Factors in Steel Frames under Vibrations Produced by Earthquakes. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-19.
https://search.emarefa.net/detail/BIM-1215569
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1215569
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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