| 摘要 |
PURPOSE: A pi-shape trussed structure is provided to simultaneously support a long span and a heavy load by increasing strength. CONSTITUTION: A pi-shape trussed structure comprises A bracing part(20) is combined in a bonding groove(13) formed into the inner side of upper and lower pi parts(10). One side end of the second row web member is combined in the flange member to the welding joint. The other end of the web member is bent to outside. A reinforcing flange part(14) is respectively formed on the other end of the web member. The bonding grooves of the upper and lower pipes are facing to each other, and couplers(30) are formed on the bonding grooves. The bracing part is respectively combined in the bonding groove. |
