Mobile QR Code QR CODE : Journal of the Korean Society of Civil Engineers
Title Prediction of Andong Reservoir Inflow Using Ensemble Technique
Authors 강민석(Kang, Min Suk) ; 유명수(Yu, Myungsu) ; 이재응(Yi, Jaeeung)
DOI https://doi.org/10.12652/Ksce.2014.34.3.0795
Page pp.795-804
ISSN 10156348
Keywords 앙상블 예측;SWAT모형;안동댐 ESP;SWAT Model;PDF-Ratio;Andong reservoir
Abstract In this study, the rheological models were introduced and developed to reflect rate dependent tensile behaviour of concrete. In general, mechanical properties(e.g. strength, elasticity, and fracture energy) of concrete are increased under high loading rates. The strength of concrete shows high rate dependency among its mechanical properties, and the tensile strength has higher rate dependency than the compressional strength. To simulate the rate dependency of concrete, original spring set of RBSN(Rigid-Body- Spring-Network) model was adjusted with viscous and friction units(e.g. dashpot and Coulomb friction component). Three types of models( 1) visco-elastic, 2) visco-plastic, and 3) visco-elasto- plastic damage models) are considered, and the constitutive relationships for the models are derived. For validation purpose, direct tensile test were simulated, and characteristics of the three different rheological models were compared with experimental stress-strain responses. Simulation result of the developed visco-elasto-plastic damage(VEPD) model demonstrated well describing and fitting with experimental results.