体内外同索预应力混凝土结构设计与施工

Design and Construction Technology of Novel Prestressed Concrete Structure with the Same Tendon as Internal and External

针对在建筑物加固与改造过程中出现的共享空间增加楼层这种结构形式,提出了一种新颖的体内外同索的预应力体系,将体内部分的一部分预应力筋延伸至体外加固原结构梁。分析了这种结构通常改造过程中出现的问题,介绍了体内外同索预应力结构在增层加固中的特点,给出了这种方法加固与改造建筑物时施工的关键技术。

During the process of strenthening and retrofitting, a new type prestressed concrete structure with the same tendons, part of which exist as internal but others exist as external, was introduced to retrofit the building with a big story hight to more story building. At first, the general problem in the process of retrofitting such structure was analyzed, then the novel concept was offered. And its characteristic was also introduced. At last, the critical technology of construction of such structure was described.