Residual joint formwork and construction method for concrete structures

摘要

PROBLEM TO BE SOLVED: To use a residual joint formwork and the residual joint formwork of a concrete structure having a short construction period, few steps, improved work efficiency, maintenance of strength and durability of a concrete structure, and excellent economy. Provides a construction method for concrete structures that have been used. SOLUTION: A residual joint formwork 1 buried across a longitudinal direction of a concrete structure includes a joint plate 5 and a plurality of frames 3 arranged in the vertical direction of the joint plate 5. The frame 3 includes a plate-shaped fixing portion 31 having a plurality of through holes 311 and leg portions 33 in which both ends of the fixing portion 31 are bent in the same direction. The leg 33 has a plurality of through holes. The end portion 333 in the longitudinal direction of the leg portion 33 and the joint plate 5 are in contact with each other. The joint plate 5 and the frame 3 are fixed by the fixing means 7 penetrating the through hole 331 of the fixing portion 31 and the joint plate 5. [Selection diagram] Fig. 1