摘要
针对民防工程抗力加固问题,采用量纲分析和微分方程法推导和分析钢筋混凝土板柱体系模型动力试验的相似比并建立试验模型。开展板柱体系立柱加固模型的动力性能试验研究。了解在核爆炸冲击波载荷作用下无边墙、无柱帽板柱体系的动力性能、破坏形态和采用后加柱加固的实际效果等问题。研究表明,采用后加柱加固明显改变结构的破坏形态,较大提高整个结构尤其是结构顶板的承载能力;无柱帽板柱体系的节点抗冲切破坏问题是一个薄弱环节。
With respect to the reinforcement of civil defense works, the dimensional analysis method and the differential equation method are employed to derive and analyze the similitude scales for the setup and dynamic test of a reinforced concrete slab-column system model. Experiments of the reinforced concrete column model have been carried out to study the dynamic capacity, the failure mode, and the column-reinforcement effect of the no-wall and no-cap reinforced concrete slab-column system under nuclear explosions. The experimental results indicate that the failure mode of the structure is apparently altered after reinforced with columns, and the load carrying capacity of the structure, especially that of the roof, is greatly enhanced. Punching failure is a weak feature of the nodes of the no-cap slab-column system.
出处
《土木工程学报》
EI
CSCD
北大核心
2006年第7期39-42,共4页
China Civil Engineering Journal
关键词
板柱体系
动力试验
承载能力
冲切破坏
reinforced concrete slab-column system
dynamic test
bearing capacity
punching failure
