آنالیز مصالح مختلف در بهبود عملکرد سازه ای پوسته های خم فعال با تحلیل یک نمونه انتخابی از پوسته های مشبک
محورهای موضوعی : معمار شهر
سحر صادقي
1
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morteza rahbar
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کتایون تقی زاده آذری
3
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حسین ذبیحی
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2 - دانشکده معماری علم و صنعت ، تهران ، ایران
3 - گروه تکنولوژی معماری، دانشکده معماری، دانشگاه تهران، تهران، ایران
4 - مدیر گروه رشته شهرسازی دانشگاه علوم و تحقیقات تهران.
کلید واژه: مصالح, خم فعال, پوسته مشبک, هندسه, مدلسازی الگوریتمیک,
چکیده مقاله :
سازه های پوسته ای مشبک یکی از انواع سازه های خم فعال است که از شبکه ای از عناصر پیوسته با پوسته های منحنی دوگانه تشکیل شده است. لذا هدف از این مقاله تاثیر مصالح مختلف با انتخاب یک نمونه از پوسته های مشبک در بهبود عملکرد سازه ای آنها میباشد که بدین منظور ابتدا هندسه پوسته انتخابی به کمک برنامه گرسهاپر مدلسازی شده و سپس با استفاده از نرم افزار مدلسازی فیزیک کانگرو و کارامبا در یک مرحله تکرارشونده هم زمان، به تحلیل ملاحظات مکانیکی و هندسی پرداخته شده است. در نمونه منتخب با کمک روش کمی تحلیلی در نرم افزار کارامبا محاسبه تنش ها انجام می شود و سپس با درنظر گرفتن متغیر مصالح با ضخامت و ابعاد یکسان که دارای مقطع مستطیلی است ، به بررسی میزان جابه جایی در تحمل نیروها و تنش های داخلی که به دلیل تغییر وزن سازه به وجود آمده و به طبع آن میزان مدول یانگ به حداقل میانگین خود رسیده مراحل طی شده است. بدین ترتیب به این نتیجه می توان دست یافت که از بین شش خانواده مختلف مصالح نظیر: استیل، چوب، بتن، فولاد، کامپوزیت و پلیمرها بسته به نوع دسترسی و امکانات در هر کشور ، سازه های پلیمری تقویت شده با الیاف شیشه و سازه های چوبی بهترین عملکرد سازه ای را برای ساخت پوسته های مشبک دارا می باشند
Grid shell structures are one of the types of active bending structures, which consist of a network of continuous elements with double curved shells. Therefore, the purpose of this article is the effect of different materials by selecting a sample of mesh shells in improving their structural performance, for this purpose, the geometry of the selected shell was first modeled with the help of Grasshopper program and then using Kangaroo and Karamba physics modeling software in a The repetitive step at the same time, the mechanical and geometric considerations have been analyzed. In the selected sample, with the help of quantitative analytical method in Karamba software, the stresses are calculated, and then, considering the variables of materials with the same thickness and dimensions, which have a rectangular cross-section, to check the amount of displacement in bearing internal forces and stresses that The reason for the change in the weight of the structure has come about, and according to that, the Young's modulus has reached its minimum average, and the steps have been taken. In this way, it can be concluded that among the six different families of materials such as: steel, wood, concrete, steel, composite and polymers depending on the type of access and facilities in each country, polymer structures reinforced with glass fibers and structures Wood has the best structural performance for making grid shells.
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