Application modulo null of the steel structure building which long starts leaping, the large beam

摘要

PURPOSE: To enable construction of a steel construction building with large outrigger girder for bearing dead load and live load such as an upper room and office without trouble in structure or construction work in construction method for constructing a steel building with large outrigger girder for bearing loads on the upper structure portion. ;CONSTITUTION: In constructing a large outrigger girder 1, assembling is made with an upward chamber corresponding to a deflection amount generated by a load of an upper structure portion born by this outrigger girder 2. After completion of the assembly, a tension is made to act by a tension mechanism 3 by steel products installed vertically downward from the outrigger girder 1 so as to deform the outrigger girder 1 almost horizontally and then, the upper structure portion 2 is constructed over the outrigger girder 1.;COPYRIGHT: (C)1993,JPO&Japio