New Type Steel Structural Roof Framing

摘要

NKK has developed an economically reasonable large span roof-structure. The structure is constructed with standardized plane trusses of angle shapes, which are combined side by side as zigzag profile of folded sheet. Compared to the conventional steel structure, the structure is more competitive in both cost and period of construction. To make sure its advantages, the fabrication and construction process and structural performance are studied in case of roof structure for municipal incinerator, and real scale model was fabricated and loading test was conducted.