CAJ | 학술논문

采用钢桁架代替箱梁混凝土横隔板的办法，可以解决箱梁跨中的混凝土横隔板自重大，施工不易控制，容易开裂的问题。计算采用横隔板及顶板前后各一部分截取出来的隔离体为模型，把将横隔板看作简支梁、悬臂梁或连续梁，进行恒载和活载分配，得到内力后根据允许应力法计算桁架强度，由此得到钢桁架作为箱梁横隔板一般计算方法。
채용강항가대체상량혼응토횡격판적판법，가이해결상량과중적혼응토횡격판자중대，시공불역공제，용역개렬적문제。계산채용횡격판급정판전후각일부분절취출래적격리체위모형，파장횡격판간작간지량、현비량혹련속량，진행항재화활재분배，득도내력후근거윤허응역법계산항가강도，유차득도강항가작위상량횡격판일반계산방법。
In span of box beam, the dead weight of concrete cross slab is huge, moreover the construction is not easy to control, and easy to crack. The cross slab and the roof each part intercepts as a model which regards as the simple beam, the cantilever beam or continuous beam, the dead load and the live load will be tribute while last step was finished, we can compute the intensity of truss according to the permission stress law after obtaining the internal force, and we get the general computational method of steel truss used as cross slab of box beam.