摘要
介绍超长梁板大跨度部分预应力楼 (屋 )盖设计 ,提出通过设置后浇带、无粘结预应力筋在大跨度梁板中取消设置伸缩缝的设计方法 ,并分析了受力和测试情况 ,证明超长预应力梁在工程中采用是可行的 。
In this paper, a design method of partially prestressed beam-slab floor system with super large span is introduced. There is no contraction joint in the beam-slab floor system with super large span by employing the post cast strip and unbonded prestressing tendons in the design. The new structural system is suitable, which was verified by the testing resulats on site. But the calculation method of prestressing loss needs to be adjusted for this kind of prestressed concrete structure with super large sapn.
出处
《结构工程师》
2003年第1期1-4,42,共5页
Structural Engineers
关键词
超长梁板
预应力混凝土
连续梁
伸缩缝
后浇带
super large span, partially prestressed concrete continued bean, contraction joint, post cast strip, prestressing loss
