| 普通混凝土在非比例加载双轴压下的力学性能试验研究 |
| |
| 引用本文： | 覃丽坤,宋玉普,张众,姚家伟. 普通混凝土在非比例加载双轴压下的力学性能试验研究[J]. 建筑结构学报, 2008, 29(Z1): 74-77 |
| |
| 作者姓名： | 覃丽坤 宋玉普 张众 姚家伟 |
| |
| 作者单位： | 大连民族学院土木建筑工程学院;大连理工大学海岸和近海工程国家重点实验室;山东理工大学建筑工程学院; |
| |
| 基金项目： | 中国博士后科学基金项目(2004036163);;国家建设部科研基金项目(04-02-155,2007-k2-24);;辽宁省教育厅高等学校科研项目(20060144);;国家高技术研究发展计划(863计划)课题(2007AA112133) |
| |
| 摘 要： | 实际工程中的大多混凝土结构处于复杂应力状态。应力途径将直接影响混凝土的力学性能,本文利用大型混凝土静、动三轴试验系统,对普通混凝土进行了4种定侧应力等级的非比例加载双轴压试验,测得了混凝土的强度及应变,得到在侧应力作用下混凝土双轴受压强度和变形的变化规律。与文献[1]混凝土在比例加载的双轴压试验数据比较时发现,经过不同的应力途径得到双轴压混凝土的强度和变形的增长规律有所不同,说明双轴压混凝土强度的提高程度不仅与加载比例有关,也与加载途径有关。
|
| 关 键 词： | 变形 非比例加载 混凝土 强度 双轴压 |
Experimental study on the biaxial mechanical behavior of normal concrete under non-proportion loading |
| |
| QIN Likun,SONG Yupu,ZHANG Zhong,YAO Jiawei. Experimental study on the biaxial mechanical behavior of normal concrete under non-proportion loading[J]. Journal of Building Structures, 2008, 29(Z1): 74-77 |
| |
| Authors: | QIN Likun SONG Yupu ZHANG Zhong YAO Jiawei |
| |
| Affiliation: | QIN Likun,SONG Yupu,ZHANG Zhong,YAO Jiawei(.College of Civil Engineering and Architecture,Dalian Nationalities University,Dalian,China,.State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology,Dalian,China,.College of Architecture Engineering,Shandong University of Technology,Zibo,China) |
| |
| Abstract: | Concrete structures are mostly working under multi-axial stress state.Stress paths are major factors which influence the mechanical behaviors of concrete.For concrete,the non-proportion biaxial loading tests were carried out in large dynamic-static tri-axial test system with 4 kinds of invariable lateral loading.The strength and strain are measured,the change rule of biaxial compressive strength and deformation for concrete under fixed lateral loading are obtained.Contrasting the test results with reference [1],it can be found that increase rules for both strength and deformation are different from that of proportion loading path.Test results demonstrate that the increase level of biaxial strength depends not only on the loading proportion,but also on the loading path. |
| |
| Keywords: | non-proportion loading biaxial compression strength deformation |
|
| 点击此处可从《建筑结构学报》浏览原始摘要信息 |
|
点击此处可从《建筑结构学报》下载免费的PDF全文 |
|
