학술논문
섬유보강재로 횡보강된 사각 단면의 구조성능
Structural Performance of Square Section Reinforced with Fiber Reinforcement Material
Structural Performance of Square Section Reinforced with Fiber Reinforcement Material
Document Type
Article
Source
차세대융합기술학회논문지, 7(12), pp.2089-2098 Dec, 2023
Subject
Language
한국어
ISSN
2765-4133
2508-8270
2508-8270
Abstract
본 연구는 압축을 받는 사각부재의 표면에 섬유보강재로 보강했을 때, 횡보강에 의한 구속효과를 파악하기위해 실험적 연구를 수행하였다. 보강에 사용된 섬유보강재는 바잘트섬유(Basalt fiber)와 PEN섬유(Polyethylene Naphthalate fiber)이다. 바쟐트섬유는 2겹, 4겹, 6겹으로 보강하였으며, PEN섬유는 1겹, 2겹, 3겹으로 보강하였다. 150mm x 150mm인 정사각형 단면이며, 높이는 300mm로 계획하였다. 실험결과, 바잘트 섬유 및 PEN 섬유로 보강한 실험체는 파괴시 취성파괴가 발생하지 않고, 초기 최대강도 이후 강도가 다소 감소하는 경향을 보이다가 다시 강도가 상승하는 경향을 보여주어 연성이 크게 증가하였다.
In this study, an experimental study was conducted to understand the lateral constraint effect by transverse reinforcement when reinforcing with fiber reinforcement on the surface of a square member. The fiber reinforcement materials used for test specimens are basalt fiber and polyethylene Naphthalate fiber. Basalt fiber was reinforced with two layers, four layers, and six layers, and PEN fiber was reinforced with one layer, two layers, and three layers. It is a square cross-section with 150mm x 150mm, and the height was planned to be 300mm. As a result of the experiment, the experiment reinforced with bazalt fiber and PEN fiber showed no brittleness destruction during destruction, and the strength tended to decrease slightly after the initial maximum strength, and then increased the strength again, resulting in a significant increase in ductility.
In this study, an experimental study was conducted to understand the lateral constraint effect by transverse reinforcement when reinforcing with fiber reinforcement on the surface of a square member. The fiber reinforcement materials used for test specimens are basalt fiber and polyethylene Naphthalate fiber. Basalt fiber was reinforced with two layers, four layers, and six layers, and PEN fiber was reinforced with one layer, two layers, and three layers. It is a square cross-section with 150mm x 150mm, and the height was planned to be 300mm. As a result of the experiment, the experiment reinforced with bazalt fiber and PEN fiber showed no brittleness destruction during destruction, and the strength tended to decrease slightly after the initial maximum strength, and then increased the strength again, resulting in a significant increase in ductility.