摘要
在南京奥体中心工程的各场馆和连接各场馆之间的环状大平台项目设计中,大量运用预应力技术,成功控制了超长、超宽、大面积、大体量钢筋混凝土楼面由于混凝土收缩温度应力产生的裂缝和拱结构在支座处的位移和推力。主体结构均不设伸缩缝,保持了上部结构的完整和整体刚度,增强了抗震性能和调整不均匀沉降的能力。
The prestressing technology was used for the large ring platform connected warn all the stadia and gymnasia of Nanjing Olympic Sports Center, which had controlled successfully the cracks on the overlong and superwide reinforced concrete floors due to temperature stress of concrete shrinkage, as well as the displacement and thrust of the arched structures at seats. There were no expansion joints on the main structures,whlch could maintain an integral superstructure and stiffness,and also enhance aseismic capacity and that regulating uneven settlement.
出处
《钢结构》
2006年第2期30-34,共5页
Steel Construction
关键词
南京奥体中心
预应力技术
混凝土收缩温度应力
伸缩缝
Nanjing Olympic Sports Center prestressing technology temperature stress by concrete shrinkage expansion joint
