BAR CHAIR FOR CONCRETE STRUCTURE

摘要

A bar chair used as a vertical shear reinforcing bar is provided to prevent destruction, and to increase shear strength of a concrete structure by accurately fastening an upper steel reinforcing bar and a lower steel reinforcing bar with double structure and crossing the steel reinforcing bars. A bar chair(1) is composed of a steel reinforcing bar holder(10) formed of a steel rod continuously bent and horizontally arranged and provided with suspension part(13a,13b) functioning as shear reinforcing bars, an upper recessed bent part(11) bent and recessed between upper parts of the suspension parts to place an upper horizontal steel reinforcing bar(101) and a lower recessed bent part(12) bent between lower parts of the suspension parts to place a longitudinal steel reinforcing bar, and a support member(20) provided with leg parts(21) and integrally combined with the upper recessed bent part to support the steel reinforcing bar holder. The suspension parts are inclined, and the lower recessed bent part is connected to a recessed part between the suspension parts.