Method for manufacturing concrete structure
AssigneesMitsubishi Chemical Industries Limited, Ohbayashi Corporation
InventorsKatsuro Kobatake, Hideo Katsumata, Kensuke Yagi, Tsuneo Tanaka, Tatsuo Ando
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Abstract
A method for manufacturing a concrete structure such as columns and beams with sufficient reinforcement in the shear strength to be durable against earthquakes, etc. A reinforcing member composed of a fiber-reinforced plastic is applied onto the outer periphery of a concrete structural member by winding the fiber strands around the outer periphery of the concrete structural member while impregnating the fiber material with a resin.
Claims8
A method of manufacturing a concrete structure having improved aseismatic performance, comprising the steps of:
- impregnating a fiber with a resin;
- spirally winding the resin impregnated fiber as a reinforcing member around the outer periphery of an existing elongate concrete structural member while the resin is in an uncured state;
- curing the resin;
- and
- subjecting the structural member to stress,
- wherein the spiral winding step is started from the center portion of the concrete structural member and continues to one end thereof, after which the fiber is turned and continuously wound to the other end of the structural member, and thereafter, the fiber is again turned and wound, and finally a starting end and a terminal end of the fiber are joined together to complete the winding step.
Dependencies are inferred from the claim text.