دراسة مختبرية عن سلوك الانثناء للخرسانة المسلحة بالاللياف النسيجية في درجة الحرارة المحيطة

محتوى المقالة الرئيسي

Hadeel Hazim Khalil
Saad M. Raoof

الملخص

شائع جدا في مجال التقوية الخارجية للعناصر الانشائية. بينما في الوقت الحاضر ،اصبح استخدام الخرسانة المسلحة بالالياف النسيجية TRCالمسلحةكعنصر انشائي مستقل. في هذا البحث تم دراسة سلوك الانثناء لصفائح الأتجهت الدراسات الحديثة حول استخدام ال TRC
بالالياف الكاربونية الجافة وتم ألاخذ بنظر الاعتبار المتغيرات الاتية : )أ( عدد طبقات الالياف الكاربونية) 2,1 , و 3 (طبقات )ب( طريقة التسليح وترتيب
طبقات الالياف الكاربونية )معا او مفصولة(؛ )ج( سماكة الصفيحة ) 50و 70( مم. تضمنت هذه الدراسة اختبار اثنا عشر نموذج)نموذجان بدون تسليح
والنماذج العشرة المتبقية تم تسليحها باستخدام الالياف الكاربونية النسيجية الجافة(. تم اختبار سلوك الانثناء للعينات تحت اختبار الانحناء رباعي
النقاط. أظهرت النتائج أن زيادة عدد الطبقات لكلا ترتيب التسليح يؤدي إلى زيادة سعة الانثنا ء . زيادة سمك الصفيحة له تأثير سلبي على زيادة قدرة
الانحناء لكلا ترتيب التسليح. أخيرًا ، ترتيب التسليح المفصولة بسماكة 50 مم أو 70 مم يتمتع بقدرة انثناء أعلى من العينات المقابلة مع ترتيب التسليح
معًا.

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المراجع

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