Experimental and statistical investigation of a new concrete-composite beam with encased polymer tube wrapped by FRP

作     者：Abdelmadjid SI SALEM Souad AIT TALEB Kamal AIT TAHAR 

作者机构：Laboratory LaMoMS the University Mouloud Mammeri of Tizi Ouzou Tizi Ouzou 15000 Algeria 

出 版 物：《Frontiers of Structural and Civil Engineering》 (结构与土木工程前沿（英文版）)

年 卷 期：2015年第9卷第2期

页      面：154-162页

核心收录：

学科分类：08[工学] 0813[工学-建筑学] 0814[工学-土木工程] 

主　　题：design GFRP-Jacket polymer tube test reliability analysis 

摘      要：A new concrete-composite beam with high mechanical performances to weight ratio is developed in this study. The proposed design technique consists to embed a cylindrical polymer tube wrapped by a GFRP Jacket in the mechanically ineffective concrete tensile zone. An experimental investigation is carried out on composite beams under bending loads until failure to evaluate the flexural capacity and the corresponding failure mechanisms. Based on the experimental results, statistical and preliminary reliability analyses using the FORM method are performed to assess the safety margin of the new beam. The confrontation between test and simulation results shows a satisfactory agreement, and represents a promising revelation regarding the improvement in terms of strength and ductility of such design compared to conventional reinforced concrete beams with traditional one.