摘要
消力塘底板的构造型式对其稳定性有显著影响。文中采用数值方法模拟键槽的工作机理,通过改变底板板块间结构缝的衔接型式,从静、动力两方面对比分析键槽设置方式对平底板和反拱底板的极限抗力与动力响应的影响。结果表明,对于平底板或反拱底板,设置键槽均可明显增加板块间的相互作用,提高底板的极限抗力,减小底板的动力响应,为工程设计提供了新的构造形式。
The structural form of the bottom slabs has a significant effect on the stability of a plunge pool. On the basis of numerically simulating the working mechanism of the key grooves, the static and dynamic analyses are made herein on the effect from the arrangement of the key grooves on the ultimate resisting force and dynamic response of both the flat bottom slab and inverted arch bottom slab through changing the connection shape of the structural joints in between the blocks of the bottom slabs. The result shows that arranging key grooves can obviously increase the interaction in between the blocks for both the flat and the inverted arch bottom slabs along with the increase of the limit resisting force and decrease of the dynamic response, and then can provide a new structural form for the engineering design concerned as well.
出处
《水利水电技术》
CSCD
北大核心
2009年第1期66-70,共5页
Water Resources and Hydropower Engineering
基金
国家杰出青年科学基金(50725929)
国家自然科学基金(50539060
50679052)项目资助
关键词
键槽
消力塘
底板
极限抗力
动力响应
key groove
plunge pool
bottom slab
ultimate resisting force
dynamic response
