Flexural behavior of self compacting RC continuous beams strengthened by CFRP sheets

مقدم أطروحة جامعية

al-Kashan, Mustafa Muhammad Rahim

مشرف أطروحة جامعية

al-Sarraf, Subayh Zaki

الجامعة

الجامعة التكنولوجية

الكلية

-

القسم الأكاديمي

قسم هندسة البناء و الإنشاءات

دولة الجامعة

العراق

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2012

الملخص الإنجليزي

This search presented an experimental study of the flexural behavior of self-compacting reinforced concrete continuous beams externally strengthened by carbon fiber reinforced polymer (CFRP) sheets.

The practical study contained eight self-compacting reinforced concrete con nuous beams (with two span), each span had 1500 mm length and (150x250)mm cross sec onal dimensions, study the effect of the type of superplasticizer (Glenium 51and Glenium 54) on the compressive strength and fresh properties of self-compacting concrete in order to select the most effective.

Further, test of construction materials.

Seven of these beams strengthened externally by CFRP sheets with and without external anchorage.

The experimental variables included location of CFRP sheets and anchor type and location.

The results, show that the beams strengthened externally by CFRP sheets provided improvement in ultimate loads.

The increment in ul mate loads reached (60.71 %).

The usage of CFRP in the anchorage zone indicated an effective method in comparison to increasing the CFRP sheets lengths or extending them up to the support or under the loading points .

Test results also showed that side strengthening provided an effective tool for increasing the load at the cracking stage and also the load capacity and reducing flexural crack widths.

التخصصات الرئيسية

العلوم الهندسية والتكنولوجية (متداخلة التخصصات)

الموضوعات

• مواد البناء
• الخرسانة
• الخرسانة المسلحة
• ألياف الكربون

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-420207