![一种钢纤维混凝土断裂试验起裂荷载的测试方法](/CN/2014/1/1/images/201410008125.jpg)
基本信息:
- 专利标题: 一种钢纤维混凝土断裂试验起裂荷载的测试方法
- 专利标题(英):Testing method of steel fiber reinforced concrete fracture test crack initiation load
- 申请号:CN201410008125.9 申请日:2014-01-08
- 公开(公告)号:CN103760036A 公开(公告)日:2014-04-30
- 发明人: 张廷毅 , 郑光和 , 宋万增 , 张凯 , 王萍 , 宋海亭 , 邵菁 , 魏民 , 周永海 , 蔡怀森 , 谢义兵 , 刘慧 , 王玮屏 , 伍艳 , 赵志忠
- 申请人: 黄河水利委员会黄河水利科学研究院
- 申请人地址: 河南省郑州市金水区顺河路45号
- 专利权人: 黄河水利委员会黄河水利科学研究院
- 当前专利权人: 黄河水利委员会黄河水利科学研究院
- 当前专利权人地址: 河南省郑州市金水区顺河路45号
- 代理机构: 郑州大通专利商标代理有限公司
- 代理人: 陈大通
- 主分类号: G01N3/20
- IPC分类号: G01N3/20
The invention relates to a testing method of steel fiber reinforced concrete fracture test crack initiation load, and belongs to the technical field of concrete cracking parameter testing. The testing method provided by the invention is characterized in that when a steel fiber reinforced concrete coped beam specimen cracks, a stress intensity factor of a prefabrication crack front edge achieves concrete fracture toughness, and the steel fibre blocking action is not exerted; the stress intensity factor generated by external load and concrete cracking toughness(i)K(/i) IC are equal, the external load value which is corresponding to a numerical value (i)K(/i)IC of the stress intensity factor generated by the external load can be used for determining the crack initiation load according to the curve relation graph of the external load and the stress intensity factor (i)K generated by the external load (img file='2014100081259100004dest_path_image002.TIF'wi='8'he='21'/)(/i)-(i)P(/i) curve relational graph. The testing method provided by the invenytion has the advantages that the required equipment, analyzing and processing method are simple, the cost is low, and the precision is high.
公开/授权文献:
- CN103760036B 一种钢纤维混凝土断裂试验起裂荷载的测试方法 公开/授权日:2016-08-17
IPC结构图谱:
G | 物理 |
--G01 | 测量;测试 |
----G01N | 借助于测定材料的化学或物理性质来测试或分析材料 |
------G01N3/00 | 用机械应力测试固体材料的强度特性 |
--------G01N3/20 | .施加稳定的弯曲力 |