بررسی تأثیر اندرکنش خاک-سازه در پاسخ لرزه‏ای سیستم سازه‏ای قاب‌های خمشی بتن‌آرمه

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار، گروه مهندسی عمران، واحد ارومیه، دانشگاه آزاد اسلامی، ارومیه، ایران

2 دانشجوی دکتری، گروه مهندسی عمران، واحد ارومیه، دانشگاه آزاداسلامی، ارومیه، ایران

چکیده

اندرکنش خک و سازه یکی از عامل‌های مهم و تاثیرگذار بر رفتار لرزه‌ای سازه‌ها به‌ویژه سازه‌های بتن‌آرمه است. در این تحقیق اثر اندرکنش خاک-سازه بر یک سازه 9 طبقه بتن‌آرمه با سیستم قاب خمشی که بر اساس الزامات لرزه‌ای با سطح خطر پایین طراحی‌شده است و برای تحلیل غیرخطی با نرم‌افزار اجزای محدود OpenSees در دو حالت مختلف با پایه صلب بدون در نظر گرفتن اندرکنش و با پایه منعطف با در نظر گرفتن اثر اندرکنش خاک-سازه مدل‌سازی و مورد ارزیابی قرارگرفته است. نتایج به‌دست‌آمده نشان می‌دهد که در اثر اندرکنش، برش پایه، برش درون طبقات و مقدار تغییرمکان نسبی کاهش‌یافته درحالی‌که دوره تناوب واقعی ساختمان و تغییرمکان مطلق طبقات افزایش می‌یابد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Investigating the Effect of Soil Structural Interaction on Concrete Structural System

نویسندگان [English]

  • Ashkan KhodaBandehLou 1
  • Hadi Pouryan 2
1 Assistant Professor, Civil Engineering Department, Faculty of Engineering, Urmia Branch, Islamic Azad University, Urmia, Iran
2 Ph.D. Candidate of Civil Engineering, Urmia Branch, Islamic Azad University, Urmia, Iran
چکیده [English]

Soil-structure interaction is one of the important and influential factors on the seismic behavior of structures, especially reinforced concrete structures. In this study, the effect of soil-structure interaction on a 9-story reinforced concrete structure with a flexural frame system designed based on low-risk seismic requirements and for nonlinear analysis with OpenSees finite element software in two different modes with rigid base without considering the interaction And with a flexible base, the effect of soil-structure interaction has been modeled and evaluated. The results show that due to the interaction, the base shear, the shear within the floors and the amount of relative displacement are reduced, while the actual periodicity of the building and the absolute displacement of the floors is increased.

کلیدواژه‌ها [English]

  • Soil StructureInteraction
  • Dynamic Response
  • base shear
  • Fixed base
  • FlexibleBase
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دوره 6، شماره 1 - شماره پیاپی 11
در حال تکمیل
بهار و تابستان 1400
صفحه 23-44
  • تاریخ دریافت: 12 آذر 1399
  • تاریخ بازنگری: 29 بهمن 1399
  • تاریخ پذیرش: 17 اسفند 1399