|
Title |
Experimental Study of the Structural Behavior and Performance of Noise Barrier Foundations Reinforced with GFRP Bars
|
|
Authors |
손윤기(Yun-Ki Son) ; 남왕현(Wang-Hyun Nam) ; 이동원(Dong-Won Lee) ; 남문석(Moon-Seok Nam) ; 황훈희(Hun-Hee Hwang) |
|
DOI |
https://doi.org/10.4334/JKCI.2026.38.2.231 |
|
Keywords |
GFRP 보강근; 방음벽 기초; 굽힘시험; 하중?변위 GFRP reinforcement; noise-barrier foundation; bent-bar test; load?displacement behavior |
|
Abstract |
This study experimentally investigated the structural feasibility of using glass fiber?reinforced polymer (GFRP) bars in concrete noise-barrier foundations. Embedded and non-embedded bending tests were conducted on GFRP bars with diameters of G13 and G16, and the results were evaluated against domestic and international design standards. In addition, full-scale foundation specimens, including one steel-reinforced concrete (RC) specimen and two GFRP-reinforced specimens, were tested under monotonic lateral loading. The results showed that all GFRP bent bars satisfied the required tensile strength criteria. The GFRP-reinforced foundations achieved safety factors comparable to or greater than those of the RC foundation. Moreover, the GFRP specimens exhibited greater deformation capacity without load degradation even after entering the plastic region. These results indicate that GFRP reinforcement can be structurally applied to noise-barrier foundations when appropriate detailing is provided.
|