Large-span lifting beam type top exposed building for historic building

The utility model discloses a large span beam lifting type top exposed building for ancient buildings, which comprises a main support structure, a main beam, a secondary support structure, purlines and rafters, the main beam is arranged on the main support structure, the secondary support structure is arranged on the main beam, the purlines are arranged on the secondary support structure, and the rafters are arranged on the purlines; the main supporting structure comprises a supporting wall and a ring beam, the ring beam is arranged on the top of the supporting wall, and the main beam is arranged on the ring beam. The steel structure beam is adopted as a main supporting structure, a large-span ancient building is constructed in an exposed mode, and the structure has the advantages of being safe and attractive in appearance. The lump joints are arranged to achieve combined connection of steel and wood structures, and the stability of structural connection is guaranteed. 本实用新型公开了一种用于古建筑的大跨度抬梁式彻上露明造，包括主支撑结构、主梁、次