Rebar splice sleeve and method of splicing
OwnerAlfred A. Yeeinventor
Life of this patent
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Abstract
A splice sleeve for receiving and connecting adjoining ends of a pair of reinforcing bars with one end having an enlarged end and the other end without an enlargement. The splice sleeve has an internal surface which is generally cylindrical with ridges over a major portion of its length starting at one open end and steeply tapered inwardly toward a smaller opening on the other end. The sleeve's inwardly tapered end is complementarily configured to captively receive and lock in place the enlarged head of the first rebar end. The second rebar end is inserted into the sleeve's cylindrical portion up to the enlarged end of the first rebar, and the sleeve is filled with high strength grout through side ports to hold the bar ends in a coupled arrangement.
Claims20
A splice sleeve for connecting adjacent end portions of reinforcing bars in reinforced concrete construction comprising an elongated shell of one-piece construction including generally cylindrical internal and external surfaces and opposed ends each having an opening for positioning the end portions of the reinforcing bars to be connected, said internal surface being cylindrical throughout a major portion of its length from a first open end and being steeply tapered inwardly over a minor portion of its length leading to a smaller second opening at an opposite end, said inwardly tapered minor portion configured to captively secure an enlarged diameter end of a first reinforcing bar, said internal surface configured to provide a wedging action and radial inward compression for a flowable and hardenable material inserted into the annular space between the reinforcing bars and the internal surface of the shell thereby securing the shell, inserted material, and reinforcing bars fixedly throughout the length of the splice sleeve.
An interconnected coupling of a pair of reinforcing bars comprising a splice sleeve having an internal surface which is generally cylindrical throughout a major portion of a length of the sleeve from one sleeve open end and has a steep inwardly tapered portion leading to a smaller opening over a minor portion of the sleeve length at the sleeve other end, a first reinforcing bar with an enlarged diameter end extending out of said smaller opening while said enlarged diameter end is lockingly secured in said steep inwardly tapered portion, a second reinforcing bar having an end without an enlarged head extending into said cylindrical major portion of the sleeve length, and high strength grout filling the space between the internal surface of the sleeve and said rebar ends positioned within said sleeve.
A method of splicing together two sections of rebar, comprising:
- inserting a first reinforcing bar having an enlarged diameter end into a splice sleeve that has a complementary steep inwardly tapered portion at one end and position said enlarged diameter end in said complementary inwardly tapered portion;
- inserting into an opposite end of the splice sleeve an end of a second reinforcing bar without an enlarged diameter end such that said end of the second bar is adjacent to the enlarged diameter end of the first bar;
- and
- inserting into the splice sleeve a flowable and hardenable material that surrounds and secures the inserted bar ends.
Dependencies are inferred from the claim text.