http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
온도하중을 받는 Winkler 보에서 스프링 계수 K값에 따른 모멘트 변화
곽순섭(Kwak, Soon-Seop),송길호(Song, Kil-Ho),전두선(Jeon, Du-Seon) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.11
The curvature of the Winkler beam due to the thermal loads is “y″-κ”, where y is deflection curve, κ is curvature by the thermal load. The differential equation of the Winkler beam, when loaded by thermal load, is (EI(y″(χ)-κ))″+ky(χ)=0, where κ is spring constant. When the point thermal load is applied at χ=α, the curvature becomes κ=δ?(χ-α)αΔT/h, where α is the coefficient of thermal expansion, ΔT is thermal difference between upper and lower fiber of beam, h is the depth of beam and δ0 is the Generalized Function. With the aid of characteristics of Generalized Functions, the solutions of the mentioned differential equations are obtained systematically. When the moment Green Function due to the point thermal load is obtained, we can get the moment, when the partial thermal load is applied, through integration of the moment Green Function within the given range. The results of this study show, when the beams loaded by point thermal load and partial thermal load, how the values of deflection and moments change depending on the spring constant κ in four cases : ①Hinge-Hinge, ②Fix-Fix, ③Hinge-Fix, ④ Free-Fix. When the spring constant κ is zero, then the Winkler beam becomes general beam.