| 摘要 |
PROBLEM TO BE SOLVED: To unify construction works so as to shorten, a construction period. SOLUTION: Left and right joists 11, 11, a support member 21 bridging between the joists 11, 11 and a heat-insulation material 31 laid on the upper surface of the support member 21 and formed in its upper surface with embedding grooves 31a, 31a for storing heat-pipes are integrally incorporated with one another. The support member 21, the heat insulation material 31 and the joists 11, 11 are laid bridging between sleepers S, S, and the heat pipe may be located at a predetermined position through the embedding grooves 31a, 31a. |
