CONSTRUCTION METHOD OF LONG SPAN STEEL FRAME SKELETON

摘要

PURPOSE:To reduce the maximum bending moment of the central part of a beam in a long span of the rigid frame construction with a steel frame parallel chord truss. CONSTITUTION:Tensile force is applied to the upper part of a beam 1 by pushing longitudinal members 2 of the insides of columns 4 or a parts of the ends of the beam 1 in a rigid frame skeleton 5 up, or by pulling longitudinal members 3 of the outsides of the columns 4 method above or the ends of the beam 1 down and, at the same time, compressive force is applied to the lower part of the beam 1 to bend and deform the beam 1 upward. According to the constitution, the bending caused by the dead weight of the steel frame parallel chord truss can be offset. A construction period can be reduced.