| 吴胜兴,周继凯,沈德建,陈厚群.混凝土动态弯拉试验技术与数据处理方法[J].水利学报,2009,40(5): |
| 混凝土动态弯拉试验技术与数据处理方法 |
| Test technique and data processing method for dynamic flexural tensile test of concrete |
| |
| DOI： |
| 中文关键词: 全级配混凝土 湿筛混凝土 动态试验技术 弯拉试验 数据处理 |
| 英文关键词: dynamic flexural tensile test fully graded concrete testing device test technique data processing |
| 基金项目: |
|
| 摘要点击次数: 2657 |
| 全文下载次数: 1097 |
| 中文摘要: |
| 对混凝土动态弯拉试验技术与数据处理方法进行了研究。参照水工混凝土试验规程(DL/T 5150 2001)中的静载弯拉试验。采用简支梁三分点加荷法，自行设计出适应往复拉压加载的系列装置(湿筛、三级配和四级配混凝土试件)，能够实现多种类型荷载(如冲击、三角波、正弦波以及任意波形)的施加。通过反复试验得出了合理的试件安装、荷载施加、数据采集和处理方法，形成了规范的动态弯拉试验操作步骤。研究成果为后续的混凝土动态弯拉系列试验研究打下了基础。最后给出了试验实例。 |
| 英文摘要: |
| The study on test technique and data processing method for dynamic flexural tensile test of concrete were carried out. A series of testing devices for generating the cyclic compressive tensile load are designed according to the principle of the third middle point loading method for simply supported beam and refer to the Test Code for Concrete of Hydraulic Engineering. The testing devices are adaptive to the specimens of wet sieved concrete， third graded concrete as well as fourth graded concrete and enable to generate several kinds of loading such as impact wave， triangular wave， sine wave and random wave. Base on experiments， a series of procedures for carry out the dynamic flexural tensile test of concrete such as specimen installation, application of load, data collection, data processing etc. A normalized procedure of test instruction is established accordingly. An example of application is given. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |