Topic In the precast block which forms the extra large size box culvert,While raising bending moment and the strength for shear force, it assures quantization. Past compared to bigConfiguration of the precast culvert is made possible. Solutions In intermediate circles side median part of pile cap block 10 meat stealing crevice 16 pile cap bu Paralleling to the longitudinal direction of lock, 10 it forms. In both sides section of pile cap block 10 PC steel 1 Embedding 7. Both destals of PC steel 17 person in charge stopping means 24 of both destals of pile cap block 10 The person in charge sticking, Hari facilities it does PC steel 17. As for PC steel 17, intermediate section of pile cap block 10 So to be located inside stiffening rib 10d which is left on both sides of meat stealing crevice 16, pile cap block 10 From the intermediate section it faces to both destal direction of pile cap block 10 following, pile cap block 1 0 to incline to outside direction, in both destals of pile cap block 10 outside pile cap block 10 rank The position it has done. Choice figure Drawing 1
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