| 彭红,柯国军,张春雨,代明.封砂结构混凝土阻尼性能研究[J].南华大学学报(自然科学版),2010,24(4):108~112.[PENG Hong1,KE Guo-jun2,ZHANG Chun-yu3,DAI Ming4.Study on the Damping Ratio of Sealing Sand Structure Concrete[J].Journal of University of South China(Science and Technology),2010,24(4):108~112.] |
| 封砂结构混凝土阻尼性能研究 |
| Study on the Damping Ratio of Sealing Sand Structure Concrete |
| 投稿时间：2010-07-06 |
| DOI： |
| 中文关键词: 封砂结构 悬挂式自由振动 阻尼比 填充率 |
| 英文关键词:sealing sand structure hanging free vebration method damping ratio filling ratio |
| 基金项目:湖南省自然科学基金资助项目(05JJ40082) |
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| 中文摘要: |
| 用C10、C15、C20、C25、C30普通混凝土分别配制试件尺寸为450 mm × 150 mm × 100 mm长方体试件,试件内预留Ф32 mm×450 mm孔洞,在孔洞内填入不同粒径、不同填充率的天然砂,充填完成后将孔两端封上形成封砂结构.采用悬挂自由振动方式测定封砂结构混凝土的阻尼比和响应频率等参数,获得阻尼比与填充率、颗粒粒径、响应频率等参数之间的关系. |
| 英文摘要: |
| 450 mm×150 mm×100 mm prismoidal specimens are respectively made of C10、C15、C20、C25、C30 common concrete.The specimens containФ32 mm ×450 mm circular holes which are filled with natural sands that have different filling ratios and particle sizes,then it become a sealing sand structure (SSS) after plugging the twe ends.Some SSS parameters such as damping ratioes and response frequencies are measured by using hanging free vibration method.The relationships between damping ratio and filling ratio,granule size and response frequency are obtained. |
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