南京国投大厦开洞预应力混凝土转换大梁施工

Construction of Holed Prestressed Concrete Transfer Girder in Nanjing International Investment Mansion

南京国投大厦有３ 根跨度３２ｍ 、梁高３．７～４．２ｍ 的开洞预应力混凝土转换大梁，采用叠合梁两次浇筑成型法施工，本文介绍该转换大梁的支模、钢筋绑扎、混凝土浇筑及预应力施工等。

There are three holed prestressed concrete transfer girders, each with 32m span and 3 7～4 2m beam depth, which have been constructed applying the technique of two time casting for laminated beams. This paper introduces the form erecting, bar binding, concrete pouring and prestressed concrete construction of the transfer girders.