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| 考虑长轴方向相邻裂纹影响的双向间隔诱导缝等效强度模型 | |
| 引用本文： | 王学志,张小刚,孙荣书,黄志强.考虑长轴方向相邻裂纹影响的双向间隔诱导缝等效强度模型[J].混凝土,2011(8). |
| 作者姓名： | 王学志 张小刚 孙荣书 黄志强 |
| 作者单位： | 1. 辽宁工业大学土木建筑学院,辽宁锦州,121001 2. 深圳大学土木建筑学院土木工程耐久性重点实验室,广东深圳,518060 3. 沈阳工业大学建筑工程学院,辽宁沈阳,110024 |
| 基金项目： | 国家自然科学基金(50709013); 深圳市土木工程耐久性重点实验室开放基金项目SZDCCE(10-05) |
| 摘 要： | 基于应力强度因子手册中数值计算结果对长轴方向相邻裂纹影响进行了研究,得到了长轴方向相邻裂纹影响系数公式,将该公式运用到诱导缝等效强度模型中,得到分别基于有效裂纹扩展量和尺寸效应公式且考虑长轴方向相邻裂纹影响的诱导缝等效强度计算公式。算例表明基于有效裂纹扩展量的等效强度模型中抛物线模型计算结果最为合理。 |
| 关 键 词： | 双向间隔诱导缝 等效强度 长轴 相邻裂纹 尺寸效应 有效裂纹扩展量 |
Equivalent strength model for bilateral interval crack director on the consideration of influence of long axial colinear cracks |
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| WANG Xue-zhi,ZHANG Xiao-gang,SUN Rong-shu,HUANG Zhi-qiang.Equivalent strength model for bilateral interval crack director on the consideration of influence of long axial colinear cracks[J].Concrete,2011(8). | |
| Authors: | WANG Xue-zhi ZHANG Xiao-gang SUN Rong-shu HUANG Zhi-qiang |
| Affiliation: | WANG Xue-zhi 1,ZHANG Xiao-gang 2,SUN Rong-shu 1,HUANG Zhi-qiang 3 (1.College of Civil Engineering,Liaoning University of Technology,Jinzhou 121001,China,2.College of Civil Engineering,Shenzhen University,Shenzhen Municipal Key Laboratory for Durability of Civil Engineering Structure,Shenzhen 518060,3.College of Civil Engineering and Architecture,Shenyang University of Technology,Shenyang 110024,China) |
| Abstract: | The influence of long axial collinear cracks was studied baaed on simulation results in The Stress Analysis of Cracks Handbook,formula for influence of long axial collinear cracks in bilateral interval crack directors was gotten.The formula was applied to equivalent strength models for bilateral interval crack director.The equivalent strength models considered influence of long axial colinear cracks were gotten on the basis of size effect and effective crack propagation,It is indicated calculation result th... |
| Keywords: | bilateral interval crack director equivalent strength long axial collinear crack size effect effective crack propagation |
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