مدل‌سازی مبتنی بر تجزیه‌وتحلیل ستون‌های دایره‌ای فولادی پرشده با بتن تحت‌فشار محوری توسط شبکۀ عصبی مصنوعی

مهندسی عمران فردوسی

مقاله 3، دوره 32، شماره 3 - شماره پیاپی 27، مرداد 1398، صفحه 33-48   

نوع مقاله: پژوهشی

شناسه دیجیتال (DOI): 10.22067/civil.v32i3.73399

نویسندگان

محمد حسین یعقوبی؛ بهروز کشته گر^* ؛ حسین علی رهدار

دانشگاه زابل

چکیده

ستون‌های فولادی پرشده با بتن به‌واسطه عملکرد مناسب بتن و فولاد موجب بهبود مقاومت نهایی محوری ستون‌ها می‌گردد. عمدتاً، مدل‌های تجربی و آیین‌نامه‌ای قادر به محاسبۀ دقیق مقاومت نهایی محوری این مقاطع برای مصالح با مقاومت‌های بالا نیستند. در این تحقیق، بر اساس نتایج آزمایشگاهی، یک مدل تخمین مقاومت نهایی محوری بر اساس شبکه عصبی توسعه داده شده ‌است. نتایج حاصل از تخمین مدل شبکه عصبی بر اساس 1168 نمونۀ آزمایشگاهی، به کمک چندین آماره خطا با هشت مدل‌ تجربی و آیین‌نامه EC4 مقایسه گردیده است. مدل شبکۀ عصبی ارائه‌شده در مقایسه با مدل‌های موجود دقیق‌تر است و محدوده گسترده‌تری از مقاومت‌های مصالح و نسبت قطر به ضخامت و ارتفاع به قطر را پوشش می‌دهد.

کلیدواژه‌ها

ستون فولادی پرشده با بتن؛ مقاومت نهایی محوری؛ شبکه‌ی عصبی مصنوعی؛ مدل‌سازی

سایر فایل های مرتبط با مقاله

3 Keshtegar.pdf

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