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北京市旅游局永安公寓工程,在国内首次采用了大开间、大进深、大模板无粘结预应力混凝土板墙体系。永安公寓主要供外籍工作人员租用,共三幢楼,合计二万五千余平方米,共有住宅301套,公寓主体七层,局部九层。一、结构设计 1.结构方案采用7.2m大开间、20m大进深现浇后张无粘结预应力板墙体系。本方案在纵横两个方向除中间电梯井偏南侧外完全对称,质量重心与刚度中心基本重合。在建筑物中部四十多米长仅设横向剪力墙承重,纵向既无承重墙,亦无承重梁。在建筑物两端,将两个标准单元分别调转90°,利用该单元的
The Yong’an apartment project of the Beijing Municipal Tourism Administration has adopted the first time in China for a large bay, large depth, and large formwork unbonded prestressed concrete panel wall system. Yong’an Apartment is mainly rented by foreign staff and consists of a total of 3 buildings, totaling 25,000 square meters. It has a total of 301 units of residential buildings. The apartment is composed of 7 floors and 9 floors. First, the structural design 1. Structure program using 7.2m large bay, 20m large deep cast-in-place non-bonded prestressed panel wall system. This scheme is completely symmetric except in the south side of the elevator shaft in both vertical and horizontal directions. The center of mass and the center of stiffness are basically coincident. In the middle of the building, more than forty meters long, only horizontal shear wall bearing is installed, and there is neither vertical bearing wall nor bearing beam in the longitudinal direction. At both ends of the building, turn the two standard units by 90°, using the unit’s