摘要
本文结合工程实例通过对预应力桁架的分析和研究提出了先穿筋和不对称偏心张拉方法，工程实践表明该技术可行，解决了施工中的技术难题。
Prestressed reinforced concrete truss is analysed and studied with some engineering examples. Based on this, a method of first insert reinforce and unsymmetrical partial tension is developed. It is shown through application that this method is practicable and useful, and can solve difficult technological problems of the truss.
关键词
桁架
转换层
穿筋
高层建筑
预应力混凝土
施工
prestressed reinforced concrete truss
transform story
unsymmetrial partial tension
insert reinforce
