摘要
通过对木构古建筑柱础和柱架形式及特性的分析,建立了柱与柱础的摩擦滑移隔震体系模型,给出了柱脚滑移判定条件;运用随机振动理论FPK方程提出了柱与柱础间滑移量在白噪声过程作用下的计算公式;并进行了摩擦滑移隔震位移量的试验测定。试验与计算表明,柱与柱础间因摩擦滑移而隔震耗能,提出的滑移量计算公式是可行的。研究结果可为木构古建筑的抗震性能研究提供借鉴作用,并对古建文物的保护加固提供科学依据。
Based on the analysis of the form and characteristic plinth and timber frame columns in historical buildings, the sliding friction shock isolation systematic model is established and the column footing slippage criterion is given. With the FPK equation of random vibration theory, the calculation formula of the slippage displacement between column and plinth under white noise is proposed. The shaking table test on sliding friction shock isolation has also been carried out. It shows that buildings possess very good characteristic of energy dissipation and shock isolation, and the calculation results are consistent with the test results. It may provide theoretical base for seismic research on historical timber buildings.
出处
《工程力学》
EI
CSCD
北大核心
2006年第8期127-131,159,共6页
Engineering Mechanics
基金
国家自然科学基金资助项目(59878043)
陕西省自然科学基础研究计划项目(98C09)
关键词
中国古建筑
木结构
振动台试验
滑移隔震
柱础
位移响应
Chinese historical buildings
timber structure
shaking table test
slippage and shock isolation
plinth
displacement response
