Finite element modelling of concrete beams reinforced with hybrid fiber reinforced bars

Global Congress on Construction, Material and Structural Engineering 2017

材料科学;土木建筑工程

Smring, Santa Binti^1 ; Salleh, Norhafizah^1 ; Hamid, Noorazlina Abdul^1 ; Majid, Masni A.^1

Department of Structural and Material Engineering, Faculty of Civil Engineering and Environmental, Universiti Tun Hussein Onn Malaysia, Malaysia^1

关键词: Coarse aggregates;    Finite element modelling;    Glass fibre reinforced polymer (GFRP) bars;    Heterogeneous composite materials;    Properties of concretes;    Steel reinforced concrete beams;    Steel reinforcements;    Ultimate capacity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/271/1/012093/pdf
DOI  :  10.1088/1757-899X/271/1/012093

来源: IOP

【 摘 要 】

Concrete is a heterogeneous composite material made up of cement, sand, coarse aggregate and water mixed in a desired proportion to obtain the required strength. Plain concrete does not with stand tension as compared to compression. In order to compensate this drawback steel reinforcement are provided in concrete. Now a day, for improving the properties of concrete and also to take up tension combination of steel and glass fibre-reinforced polymer (GFRP) bars promises favourable strength, serviceability, and durability. To verify its promise and support design concrete structures with hybrid type of reinforcement, this study have investigated the load-deflection behaviour of concrete beams reinforced with hybrid GFRP and steel bars by using ATENA software. Fourteen beams, including six control beams reinforced with only steel or only GFRP bars, were analysed. The ratio and the ordinate of GFRP to steel were the main parameters investigated. The behaviour of these beams was investigated via the load-deflection characteristics, cracking behaviour and mode of failure. Hybrid GFRP-Steel reinforced concrete beam showed the improvement in both ultimate capacity and deflection concomitant to the steel reinforced concrete beam. On the other hand, finite element (FE) modelling which is ATENA were validated with previous experiment and promising the good result to be used for further analyses and development in the field of present study.