EXECUTION METHOD OF STEEL-SHEET LINED CYLINDRICAL REINFORCED CONCRETE STRUCTURE

• Main Authors: KATO KUNIO, TAMURA YOSHIHIDE, NAKAZAWA KAZUO, TAKEUE MAKOTO
• Format: Patent
• Language: English
• Published: 09.03.1990
• Subjects: BUILDING; BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE; BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; FENCING; FIXED CONSTRUCTIONS; FORMS; HANDLING BUILDING MATERIALS ON THE SITE; MASTS; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS; SCAFFOLDING; SHUTTERING; SWIMMING OR SPLASH BATHS OR POOLS; TENTS OR CANOPIES, IN GENERAL

PURPOSE:To improve workability at the time of execution by suspending an outer formwork from a cantilever yoke, in which an external yoke material is provided droopingly from the outer side end of a top-section horizontal frame, and successively placing body concrete between the outer formwork and a lining steel sheet. CONSTITUTION:Cantilever yokes A, A, to which external yoke materials 3, 3 are drooped from the outside ends of top-section horizontal frames 2, 2 to which hydraulic jacks 1, 1 for jump-up are mounted, are arranged at required positions. Outer formworks 8, 8 are suspended from the cantilever yokes A, A, and body concrete C, C are placed among the outer formworks 8, 8 and lining steel sheets B, B at a lower step. The concrete is solidified, and lining steel sheets at an upper step are hung and welded to the lining steel sheets B, B. The hydraulic jacks 1, 1 are operated, the cantilever yokes A, A are buried into the concrete body and rods 11, 11 are given reaction, and the cantilever yokes A, A are struck up to required height together with the outer formworks 8, 8. The body concrete C is placed among the outer formworks 8, 8 and the lining steel sheets B, B at the upper step. The process is repeated successively.