It also presents a prospect of the development of prestressing technique in China in the 21st century,and suggestions are made as to the further development of the technique.

• 本文介绍了在嘉定中心医院门诊楼工程中采用预应力技术来控制其超长结构因混凝土的收缩和季节温差引起的混凝土裂缝开展的设计思路和方法。