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1 工程概况南京状元楼酒店二期工程由主楼(高层建筑)和附楼(多层建筑)两部分组成.三层以上,由于柱网尺寸变化,分设了一抬四层和一抬八层的预应力混凝土转换层大梁.多层部分布置了两根预应力混凝土转换大梁,其断面尺寸为700×2500mm,单面悬挑2.3m,每根转换人梁内配置6束预应力筋,上部两束折线筋,两端置于柱边和楼面交界处,两端张拉;下部两束折线筋,一端置于柱边和楼面交界处,另一端预埋在悬挑梁部(采用挤压锚).一端张拉;最下部的二
1 Project Overview The second-phase project of Nanjing Zhuangyuan Hotel consists of two parts: the main building (high-rise building) and the annex (multi-storey building). With more than three floors, due to the change in the size of the column grid, it is divided into a four-story lift and an eight-story lift. The prestressed concrete conversion layer girder. The multi-layer part is arranged with two prestressed concrete conversion girders with a cross-section size of 700×2500 mm and a single-side cantilever of 2.3m. Six beams of prestressing tendons are arranged in each transition beam and the upper two Corrugated ribs with both ends at the junction of the side of the column and the floor with tension at both ends; two gussets at the lower part, one end at the junction of the column side and the floor, and the other end embedded in the cantilever beam (using extrusion Pressure anchor). One end tension; The second lowest