| 活性粉末混凝土的弯曲强度和变形特性 |
| |
| 引用本文： | 余自若,阎贵平,张明波.活性粉末混凝土的弯曲强度和变形特性[J].北京交通大学学报(自然科学版),2006,30(1):40-43. |
| |
| 作者姓名： | 余自若 阎贵平 张明波 |
| |
| 作者单位： | 北京交通大学,土木建筑工程学院,北京,100044;北京交通大学,土木建筑工程学院,北京,100044;北京交通大学,土木建筑工程学院,北京,100044 |
| |
| 摘 要： | 通过对活性粉末混凝土(RPC)无配筋梁和有配筋梁的试验,分析了活性粉末混凝土梁的弯曲强度和变形特性.研究发现,钢纤维的加入有效地提高了梁的延性和弯曲刚度,使梁的抗拉应力得到了显著提高.假设梁可承受拉应力且拉应力按矩形分布,给出了RPC受弯构件正截面承载力的计算公式,通过该公式计算出的理论值与试验值符合良好.
|
| 关 键 词： | 活性粉末混凝土 试验研究 弯曲强度 |
| 文章编号： | 1673-0291(2006)01-0040-04 |
| 收稿时间： | 2004-12-24 |
| 修稿时间： | 2005-12-06 |
Bending Strength and Deformation Character of Reactive Powder Concrete |
| |
| YU Zi-ruo,YAN Gui-ping,ZHANG Ming-bo.Bending Strength and Deformation Character of Reactive Powder Concrete[J].JOURNAL OF BEIJING JIAOTONG UNIVERSITY,2006,30(1):40-43. |
| |
| Authors: | YU Zi-ruo YAN Gui-ping ZHANG Ming-bo |
| |
| Affiliation: | School of Civil Engineering and Architecture, Beijing Jiaotong University, Belling 100044, China |
| |
| Abstract: | The bending strength and deformation character of reactive powder concrete(RPC) beams are studied separately by the test of RPC beams with and without steel bars.It is found that the steel fibers can improve the ductility and flexural rigidity of the beams,and increase the tensile strength.In addition,a rectangular tensile stress distribution on the cross-section of beam is supposed.The equations are developed to calculate the cross-section bearing capacity of reactive powder concrete beams.Theoretical results show good agreement with experimental results. |
| |
| Keywords: | reactive powder concrete experimental investigation flextural strength |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
