مصالح و سازه های بتنی

مصالح و سازه های بتنی

چارچوب هوشمند برای بهینه‌سازی طرح اختلاط بتن‌های HPFRCC با استفاده از ترکیب ANN، الگوریتم EO و روش تاگوچی

نوع مقاله : مقاله پژوهشی

نویسندگان
1 دانشجوی دکترای سازه دانشگاه آزاد اسلامی واحد تهران جنوب
2 استادیار گروه مهندسی عمران، واحد تهران‌جنوب، دانشگاه آزاد اسلامی، تهران، ایران
چکیده
در این پژوهش، یک چارچوب ترکیبی داده‌محور برای بهینه‌سازی طرح اختلاط کامپوزیت سیمانی توانمند با الیاف و عملکرد بالا (HPFRCC) ارائه شده است. با استفاده از روش تاگوچی، ابتدا ۱۶ طرح اختلاط فیزیکی ساخته و نتایج آن‌ها جمع‌آوری شد. سپس با شبیه‌سازی داده‌های مصنوعی، تعداد طرح‌ها به ۴۴ افزایش یافت و این طرح‌های اضافه نیز ساخته و آزمایش شدند. نتایج حاصل از تمامی ۴۴ طرح برای آموزش و بهینه‌سازی مدل شبکه عصبی مصنوعی (ANN) به کار گرفته شد. ورودی‌های مدل شامل مقادیر سیمان، پوزولان‌ها، الیاف، نسبت آب به سیمان، ماسه و فوق‌روان‌کننده بودند. مدل ANN، پس از بهینه‌سازی معماری با الگوریتم تعادل (EO)، با MSE برابر 0049/0 و R² بیش از 98/0، در پیش‌بینی شاخص شکل‌پذیری و ظرفیت جذب انرژی دقت بالایی نشان داد. اعتبارسنجی تجربی طرح اختلاط بهینه نیز با خطای کمتر از 3/0%، صحت مدل را تأیید کرد. بررسی نتایج نشان می‌دهد که شاخص شکل‌پذیری حاصل از چارچوب پیشنهادی، به طور میانگین حدود 4۰ درصد بالاتر از (نمونه مرجع) مقادیر حاصل از روش مستقل تاگوچی بوده است. چارچوب پیشنهادی این مطالعه، با بهره‌گیری از رویکردی مبتنی بر داده، ابزاری کارآمد برای طراحی دقیق و مقرون‌به‌صرفه بتن‌های پیشرفته فراهم می‌آورد.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

An Intelligent Data-Driven Framework for Optimizing HPFRCC Mix Designs Using a Hybrid ANN-EO-Taguchi Approach

نویسندگان English

Peyman Farhadi Yeganeh 1
Maryam Firoozi Nezamabadi 2
Ata Hojatkashani 2
Abbas Akbarpour NikghalbRashti 2
Hassan Abbasi 2
1 Ph.D. candidate in Structural Engineering at Islamic Azad University, South Tehran Branch
چکیده English

performance fiber-reinforced cementitious composites (HPFRCC). Using the Taguchi method, an initial set of 16 physical mix designs was prepared, and their results were collected. Subsequently, synthetic data were generated through simulation, increasing the total number of mix designs to 44, and the additional designs were also fabricated and tested. The results from all 44 mixes were employed to train and optimize an artificial neural network (ANN) model. The model inputs included cement, pozzolans, fibers, water-to-cement ratio, sand, and superplasticizer contents. After optimizing the ANN architecture using the Equilibrium Optimizer (EO) algorithm, the model demonstrated high accuracy in predicting both the workability index and energy absorption capacity, with a mean squared error (MSE) of 0.0049 and a coefficient of determination (R²) exceeding 0.98. Experimental validation of the optimal mix design confirmed the model’s accuracy with an error of less than 0.3%. The results indicated that the workability index of the proposed framework was, on average, approximately 40% higher than that of the reference sample obtained by the independent Taguchi method. Overall, the proposed data-driven framework provides an efficient tool for the precise and cost-effective design of advanced concretes.

کلیدواژه‌ها English

High-Performance Fiber-Reinforced Cementitious Composites (HPFRCC)
Taguchi Method
Artificial Neural Network (ANN)
Flexural Toughness
Equilibrium Optimization Algorithm (EO)
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  • تاریخ دریافت 03 تیر 1404
  • تاریخ بازنگری 25 مرداد 1404
  • تاریخ پذیرش 03 آبان 1404