MOVABLE IRON FRAME DEVICE FOR MANUFACTURE OF CULVERT AND STEAM ACCELERATION CURING CONSTRUCTION METHOD OF CULVERT USING MOVABLE IRON FRAME DEVICE

摘要

PURPOSE: A movable iron frame device for manufacture of a culvert and a steam acceleration curing construction method of the culvert using the movable iron frame device are provided to quicken the construction speed of the culvert and to make an outer side wall form member more strongly maintain spacing against the lateral pressure in placing concrete. CONSTITUTION: A movable iron frame device for manufacture of a culvert(300) includes an outer form device including an outer side wall form member(30) and a front and rear finish plate member(104) forming the front and rear of the culvert through combination with the outer side wall form member. The outer side wall form member is installed to the outside of a side wall part(320) of the culvert to constitute the side wall part of the culvert. A driving part driving along a rail part is formed to the outside of the outer side wall form member, to move forward and backward. The outer side wall form member forms a steam supply pipe to the outside, for the steam acceleration curing of the culvert through supply of steam after placing the culvert. The outer side wall form member is laid to the side inside in building a bottom slab(310). The lower end of the outer side wall form member is separably combined to an insert unit installed to the side of the bottom slab. An upper spacing-holding member is horizontally installed to the upper end of the outer side wall form member. Lateral reinforcing structure, to reinforce the lateral pressure given to the outside of the outer side wall form member by the placing of concrete in manufacturing the culvert, is disposed to the outer wall of the outer side wall form member. The lateral reinforcing structure comprises a reinforcing beam installed vertically, and steel wires fixed to the upper and lower ends of the outer side wall form member, to give lateral force to the inside of the outer side wall form member.