Compressive behavior of concrete columns wrapped with hemp fiber reinforced polymer: an experimental study

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

Concrete confinement with fiber reinforced polymers is a method widely used for strengthening and rehabilitation purposes. The replacement of synthetic fibers used as external confinement (carbon, glass, and aramid) with natural fibers is a step to achieve a sustainable construction. In this research, an experimental study reports the efficacy of the use hemp fibers reinforced polymers as external confinement for concrete columns. This study, aimed at understanding the effect of different parameters that may affect the structural behavior of concrete columns confined with fiber reinforced polymers. The test variables are: the number of the confining layers, the columns slenderness ratio, the addition of transverse steel reinforcement. Uniaxial compression test was done for a total number of 36 specimens, 30 of which are made of plain concrete and 6 with added transverse reinforcement. The axial stress-strain curves, structural ductility measured by fracture energy and failure modes were analyzed. Also, the applicability of existing stress and strain models available in the literature is checked. It was found that the number of confining layers has a significant effect on the confinement effectiveness and ductility. Small numbers of confining layers lead to insufficient confinement. The column slenderness ratio also significantly affects the axial compressive strength and ductility of the confined samples. As the slenderness ratio increases, the confinement effectiveness and ductility decrease. The conjunction of transverse steel reinforcement with external confinement lead to a better confinement effectiveness. This study gave promising results vis-à-vis the use of natural fibers as external confinement despite the tensile strength of hemp FRP that are significantly lower than that of synthetic FRP.

روابط وملفات

التعريف والنوع

رقم الوثيقة

0d4a0658-91ed-42a9-aed9-50ab673b7687

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1633059_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":" Lea Joseph Ghalieh","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"Elie Awwad","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"George Saad","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

Compressive behavior of concrete columns wrapped with hemp fiber reinforced polymer: an experimental study

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

Elie Awwad, George Saad

الإعداد

Lea Joseph Ghalieh

الاقتباسات الببليوغرافية