| 钢筋混凝土构件损伤演化的分形行为 |
| |
| 引用本文： | 李士彬,汤红卫,朱慈勉.钢筋混凝土构件损伤演化的分形行为[J].石家庄铁道学院学报,2006,19(1):54-57,66. |
| |
| 作者姓名： | 李士彬 汤红卫 朱慈勉 |
| |
| 作者单位： | 同济大学建筑工程系 上海200092(李士彬，朱慈勉)，山东大学土建与水利学院 山东济南250061(汤红卫) |
| |
| 摘 要： | 根据试验资料,分析了钢筋混凝土构件在分级荷载作用下开裂及裂纹的演化、分布特性,证明了钢筋混凝土构件表面裂缝分布具有分形性质,并且不同损伤状态下构件表面裂缝的分维数与其动力特性参数之间具有良好的负线性相关关系。研究表明该分维数可作为钢筋混凝土构件损伤程度的衡量指标,从而为钢筋混凝土结构无损检测和剩余寿命评价提供了新的思路和方法。
|
| 关 键 词： | 钢筋混凝土构件 分形 损伤 分维数 动力特性 |
| 文章编号： | 1006-3226（2006）01-0054-05 |
| 收稿时间： | 2005-10-10 |
| 修稿时间： | 2005-10-10 |
Fractals in Damage Evolvement of Reinforced Concrete Members |
| |
| Li Shibin,Tang Hongwei,Zhu Cimian.Fractals in Damage Evolvement of Reinforced Concrete Members[J].Journal of Shijiazhuang Railway Institute,2006,19(1):54-57,66. |
| |
| Authors: | Li Shibin Tang Hongwei Zhu Cimian |
| |
| Abstract: | In this paper,through the analysis of crack propagation based on the experimental data,it is verified that the surface cracks on the reinforced concrete members take on the fractal behavior and there is a very good minus linear correlative relation between the fractal dimension of the cracks on the R.C members and its dynamical characteristic parameter under different damage conditions.Accordingly,the fractal dimension can be regarded as an index to evaluate damage degree of the R.C members,which provides a novel method for non-damage detection and residual life evaluation of concrete structures. |
| |
| Keywords: | R C members fractal damage fractal dimension dynamical characteristic |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
