GIRDER SUPPORT STRUCTURE FOR STAND CHAIR OF MOVABLE TYPE

摘要

In the girder support structure of the movable grandstand according to the present invention, the grandstand is provided on the upper surface, the front girders and the back girders are arranged perpendicular to the withdrawal direction, and the truss members interconnecting the front girders and the back girders are arranged in the withdrawal direction. A first support plate comprising; a second support plate provided under the first support plate and being drawn out or accommodated by sliding with respect to the first support plate; a girder support part provided on the second support plate to support the load of the first support plate when the second support plate is slidably moved with respect to the first support plate or when fully drawn out and stored; a locking block for partially accommodating the girder supporting unit to lock the girder supporting unit with respect to the second supporting plate; and a longitudinal load support part disposed between the girder support part and the locking block in the longitudinal direction to support the load applied to the girder support part.