Truss structure using a material having a pi-shaped cross-section as an upper chord

Abstract

The present invention relates to a pi truss structure. A pi truss structure, in which a bracing part is coupled to a coupling groove defined on the inside of each upper and lower pi parts, respectively, and wherein web members having two rows of the pi parts are disposed and coupled so as to face each other at a right angle within a plate-shaped flange member, and the coupling groove having a shape is defined inward in the lengthwise direction. Also, one side of each of the web members is disposed on the flange member, the other side being bent outward so as to form a reinforcing flange part. The coupling grooves of the upper and lower pi parts are disposed facing each other so as to couple coupling members to the coupling grooves, respectively. Also, the bracing part is coupled to the coupling members.

1 . A pi truss structure, in which a bracing part is coupled to a coupling groove formed on the inside of each of pi-shaped upper and lower pi parts, wherein each of the pi parts is configured in a manner that web members in two rows are provided to face each other at right angles and coupled to the inside of a plate-shaped flange member such that a  -shaped coupling groove is formed on the inside of the pi part in a longitudinal direction, wherein one side of each of the web members is formed on the flange member and the other side thereof is bent outward to form a reinforcing flange part, wherein the coupling grooves of the upper and lower pi parts are provided to face each other such that coupling members are coupled to the coupling grooves, respectively, and the bracing part is coupled to the coupling members. 
     
     
         2 . The pi truss structure of  claim 1 , wherein one side of each of the web members facing the flange member is bent in the same shape as the reinforcing flange part to form an upper reinforcing flange part. 
     
     
         3 . The pi truss structure of  claim 1 , wherein one side of one of the web members at left and right sides facing the flange member is connected to one side of the other web member by a horizontal reinforcing member. 
     
     
         4 . The pi truss structure of  claim 1 , wherein the coupling member comprises a first coupling piece and a second coupling piece, which are coupled by welding, and the first coupling piece and the second coupling piece comprise coupling holes, respectively. 
     
     
         5 . The pi truss structure of  claim 1 , wherein reinforcing pieces are inserted into the inside of the coupling groove in a manner to face each other and coupled thereto by welding, and each of the reinforcing pieces has a shape selected from the group consisting of “-”, “ ”, “ ”, and “ ”.