| 摘要 |
PURPOSE: A rahmen type steel frame structure capable of reducing a cross section of an optimized member and a story height is provided to increase bearing strength by expanding cross sections of both side ends of a girder and to optimize the cross sections by reducing cross sections of the center part of the girder, thereby increasing economic feasibility. CONSTITUTION: A rahmen type steel frame structure capable of reducing a cross section of an optimized member and a story height comprises a girder (10) and a T-shaped reinforcing member (20). The T-shaped reinforcing members are arranged on both end parts of the girder, and welded to either the upper side or the lower side of the girder, or to both of the upper side and the lower side of the girder. The length of the reinforcing member is Ln/(12-15) for Ln, where the Ln expresses the total length of the girder. In addition, the inside end part of the reinforcing member is composed of a slope shape. |
