A COUPLER FOR CONNECTING TWO BARS HAVING SCREW THREAD AND CONNECTION STRUCTURE USING THIS COUPLER

The present invention relates to a coupler for connecting thread bars. The coupler has a main body formed with austemper-treated spherical graphite cast iron. The main body comprises a hollow unit, in which a reinforcing bar which is a connection target is inserted, and a female screw formed on the...

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Bibliographische Detailangaben
Hauptverfasser:	WOO, WOON TAEK, CHUNG, KWANG RYANG, MUKASA TATSUYA
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BUILDING BUILDING IMPLEMENTS OR OTHER BUILDING AIDS, OR THEIRUSE BUILDING MATERIALS FIXED CONSTRUCTIONS FORMS HANDLING BUILDING MATERIALS ON THE SITE REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTINGBUILDINGS SCAFFOLDING SHUTTERING STRUCTURAL ELEMENTS
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Beschreibung
Zusammenfassung:	The present invention relates to a coupler for connecting thread bars. The coupler has a main body formed with austemper-treated spherical graphite cast iron. The main body comprises a hollow unit, in which a reinforcing bar which is a connection target is inserted, and a female screw formed on the inner side of the hollow unit. The cross sectional area of the center of the main body meets a condition: the cross sectional area of the center of the coupler x the tensile strength per unit area of the coupler >= the cross sectional area of the reinforcing bar × the tensile strength per unit area of the reinforcing bar.