| 摘要 |
PROBLEM TO BE SOLVED: To provide a construction method of a concrete slab which prevents the concrete slab from being cracked or broken caused by thermal shrinkage. SOLUTION: This construction method of the concrete slab comprises a process (a first placing process) for arranging a main reinforcement 52 and a distributing bar 54 in a concrete placing region partitioned by a form or the like and placing concrete (slab concrete), a next process (a contraction process) for contracting a slab block 40 formed by the hardened concrete placed in each division by temperature exceeding a predetermined value after temperature is lowered, a next process for tightening a high strength bolt 46 below a joint space 42 actually and welding a flange 32B of a bracket 32 and a flange 32B of a beam member 34 mutually to join the bracket 32 and the beam member 34 together, and a final process (a second placing process) for filling the joint space 42 between the slab blocks 40 being thermally shrank with a filler 44 to integrate the contracted slab blocks 40 together and construct the concrete slab 22. COPYRIGHT: (C)2011,JPO&INPIT |
