Abstract
The present paper treats the bending theory of the simply supported incomplete composite T-beam bridge. It also deals with an analysis of an incomplete composite T-beam which is a component of the bridge. As for the theory of the beam, the author discussed its accuracy by comparing the theory and the preceding experiments already reported, for various hypotheses and simplifications was done in composing the present theories. The accuracy of the bending theory of the bridge was examined by analogy, as the theory is similar in its composition to that of the beam. Inasmuch as these theories were proved to be adequate both theoretically and experimentally, the author carried out the numerical calculation about the incomplete composite T-beam bridges commonly used in practice and examined the relations between the elastic behaviour and the slip of the connected plane. The author thus determined the effective breadth of the reinforced concrete slab and made its comparisons with the current rules.
