超高层建筑S+RC混合结构竖向变形差的工程对策

Countermeasures for Different Vertical Deformation of S＋ RC Mixed Structures

本文分析了超高层建筑 S＋ RC混合结构产生竖向变形差的原因及其影响。考虑到混凝土的徐变、收缩，在结构构件匀速加载的假定下引入加载速率影响系数γ，建立了估算竖向变形的简化方法 ,提出了工程中控制结构竖向变形差的几种对策。

In this paper,the causes of different vertical deformation of S＋ RC mixed structures with their effects on the structures have been studied.Based on the linear loading history assumption with consideration of the creep and shrinkage of the concrete,a simple method for calculating the vertical deformation is developed.Several countermeasures for controlling the different vertical deformation are also suggested.