| 摘要 |
PURPOSE: A steel composite truss beam using a double pipe, and a bridge using the same are provided to improve efficiency of a cross section by manufacturing an upper chord and a lower chord with a steel composite material. CONSTITUTION: A steel composite truss beam (100) using a double pipe comprises an upper chord (110), a lower chord (120), and a diagonal member (130). The upper chord is a double pipe and is filled with a filler inside. The lower chord is a double pipe and is filled with a filler inside, and is placed in the lower part of the upper chord. The diagonal member is a hollow tube and is installed between the upper chord and the lower chord. The upper chord and the lower chord include outer pipes (111,121), inner pipes (112,122), and inside interval members (113,123), and a filler (140). The inner pipes are placed inside the outer pipes at a certain interval. The inside interval members are placed on the surface of the inner pipes at a certain interval in a longitudinal direction so that the top surface contacts the outer pipes. The filler fills only a space between the upper chord and the lower chord so that the inside interval members can be buried, and then is hardened. |
