|
Title |
Lightweight Concrete Fracture Energy Derived by Inverse Analysis
|
|
Authors |
이경배(Kyeong-Bae Lee) ; 권민호(Min-Ho Kwon) ; 서현수(Hyun-Su Seo) ; 김진섭(Jin-Sup Kim) ; 조재영(Jae-Young Cho) |
|
DOI |
http://dx.doi.org/10.11112/jksmi.2015.19.5.022 |
|
Keywords |
경량골재 콘크리트 ; 균열개구변위 ; 역해석 ; 파괴에너지 Lightweight concrete ; Crack mouth opening displacement ; Inverse Analysis ; Fracture energy |
|
Abstract |
Modern structures is the tendency of being increasingly taller and larger. The concrete with large weight has the disadvantage of increasing the weight on the structure. therefore, the method of carrying out the weight saving of the concrete is required. one of such method is to use a lightweight aggregate. However, studies on structural lightweight concrete, lacking for the recognition of the lightweight concrete, so also is lacking. therefore it is necessary to study on the physical characteristic value of the lightweight concrete. In this study, in order to investigate the tensile properties of lightweight concrete, Crack mouth opening displacement (CMOD) experiments were carried out. the fracture energy of the lightweight concrete subjected to inverse analysis were derived from the CMOD experimental results.
|