| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a support capable of supporting a concrete skeleton from which a concrete form and form timbering are removed, at predetermined strength smaller than design strength, and to provide a construction method for a concrete-based structure using the support. <P>SOLUTION: The support includes: a waist pipe 2 supported at its lower end by a concrete slab on a (n-1)th floor and having a screw part 3 formed on the outer peripheral face near an upper end 2a; an insertion pipe 4 slidably inserted through the waist pipe 2 for upwardly supporting the concrete slab on a (n)th floor; an adjustable screw 5 threaded to the screw part 3 of the waist pipe 2 and height-adjustable relative to the screw part 3; a pipe (tubular body) 6 which is supported at its lower end 6b by the adjustable screw 5 and through which the waist pipe 2 is inserted; a pin (protruded part) 7 inserted into a through-hole 4c of the insertion pipe 4 and protruded at its end from the outer peripheral face of the insertion pipe 4; a spring part 8 mounted between the pipe 6 and the pin 7; and a measurement tool 9 for measuring the elongation length of the spring part 8. <P>COPYRIGHT: (C)2012,JPO&INPIT |
