| 摘要 |
PROBLEM TO BE SOLVED: To provide a precast concrete slab arranging reinforcing bars only on place where tensile force in the concrete slab acts. SOLUTION: The precast concrete slab 1 is so constituted that the reinforcing bars 4 are arranged only on the place where the tensile force in the concrete slab 2 arranging truss bars 3 along the longitudinal direction acts. COPYRIGHT: (C)2005,JPO&NCIPI
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