بررسی رفتار سازه‌های بتنی بزرگ مقیاس اوریگامی با الگوی میورا تحت بار خمشی

نوع مقاله : مقاله پژوهشی

نویسندگان

دانشکده عمران، دانشگاه صنعتی اصفهان

10.22124/jcr.2025.29173.1684

چکیده

مهندسان اغلب علاقه مند به ایجاد سازه‌هایی با معماری منحصر به فرد و نوآورانه هستند. یکی از چالش‌های موجود در ساخت این سازه‌ها استفاده از مصالح خاص و رسیدن به شکل مطلوب است. در این تحقیق سازه‌هایی در مقیاس بزرگ با استفاده از الگوی اوریگامی میورا، بتن کرباسی با عملکرد بالا و فوق العاده بالا و بتن الیافی با عملکرد فوق العاده بالا برای حل این چالش‌ها ساخته شد. عملکرد سازه‌ها تحت بار خمشی مورد ارزیابی قرار گرفت. سه سازه غیر ساندویچی و یک سازه ساندویچی ساخته شد. سازه‌های غیر ساندویچی با استفاده از بتن کرباسی با عملکرد بالا، بتن الیافی با عملکرد فوق العاده بالا (UHPFRC) و بتن کرباسی با عملکرد فوق العاده بالا ساخته شدند. استفاده از الگوی میورا (Miura) در این نمونه‌ها ظرفیت باربری سازه‌ها را در شرایط مشابه 5/2 تا 3/4 برابر افزایش داد. همچنین رفتارسازه‌ی ساندویچی با هسته‌ی اوریگامی ساخته شده از بتن کرباسی با عملکرد بالا و صفحات بالا و پایین ساخته شده از UHPFRC بررسی شد که افزایش 4 و 9/8 برابری میزان باربری نسبت به سازه‌های غیرساندویچی نشان داد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Investigating the behavior of large-scale origami concrete structures with Miura pattern under flexural load

نویسندگان [English]

  • Ali Mohammadsalehi
  • Davood Mostofinejad
Department of Civil Engineering, Isfahan University of Technology (IUT), Isfahan, 84156-83111,
چکیده [English]

Engineers are often interested in creating structures with unique and innovative architecture. One of the challenges in making these structures is the difficulty in using specific materials and achieving the desired shape. In this research, large-scale structures were built using Miura's origami pattern, high and ultra-high-performance canvas concrete, and ultra-high-performance fiber-reinforced concrete to solve these challenges. The performance of structures under flexural load was evaluated. Three non-sandwich structures and one sandwich structure were built. Non-sandwich structures were made using high-performance canvas concrete, ultra-high-performance fiber-reinforced concrete (UHPFRC), and ultra-high-performance canvas concrete. Using the Miura pattern in these specimens enhanced the load capacity of the structures by 2.5 to 4.3 times in the same conditions. Also, the behavior of a sandwich structure with an origami core was made with high-performance canvas concrete and upper and lower plates with UHPFRC was investigated, which showed an increase of 4 and 9.8 times the load capacity compared to non-sandwich structures.

کلیدواژه‌ها [English]

  • Miura patterns
  • Origami structures
  • Sandwich structure
  • Ultra-high-performance fiber reinforced concrete (UHPFRC)
  • Ultra-high-performance canvas concrete
  • High-performance canvas concrete
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