Concrete pole and method of reinforcing same

Details Concrete pole and method of reinforcing same Concrete pole and method of reinforcing same

1994-05-11

1996-08-06

Friedman, Carl D.

Static structures (e.g., buildings)

Machine or implement

5274517, 527312, E04C 334

Patent

active

055422292

ABSTRACT:
A simple reinforcement for concrete pole improving the elasticity of the pole is provided. A reinforcing layer of a fiber-reinforced composite material is applied to a portion of the outer circumference of the concrete pole 9 that comprises reinforced concrete. The reinforcing layer 11 covers a depth of at least 30 cm and a height of at least 100 cm relative to the ground level when the concrete pole 9 is placed in the ground. Reinforcing fibers 4 of the reinforcing layer 11 are oriented in the axial direction of the reinforced concrete. The total cross-sectional area (S.sub.R) and modulus of elasticity (E.sub.R) of the reinforcing fibers 4 of the reinforcing layer 11 satisfy the following relational formula relative to the total cross-sectional area (S.sub.S) and modulus of elasticity (E.sub.S) of the axial reinforcing bar of the reinforced concrete:

REFERENCES:
patent: 4244156 (1981-01-01), Watts, Jr.
patent: 4694622 (1987-09-01), Richard
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patent: 5138806 (1992-08-01), Marx et al.
patent: 5175973 (1993-01-01), Owen et al.
patent: 5218810 (1993-06-01), Isley, Jr.

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