单轴抗拉试验(UTT)是目前国际上公认的最能展现HPFRCC抗拉特性的试验方法,但UTT试验操作复杂且对试验要求高,不便于实际工程中的质量控制.本文根据四点弯曲试验的实测荷载-跨中挠度曲线,并结合截面平衡条件及应力与应变分布,建立了采用四点弯曲试验分析HPFRCC抗拉特性的计算方法.计算结果与实测结果的对比表明,该模型能较好地评价HPFRCC的抗拉特性,为今后HPFRCC在实际工程中的大量应用提供了一种间接测定其受拉强度和极限拉应变的分析方法.
参考文献
| [1] | 徐世烺,李贺东.超高韧性水泥基复合材料研究进展及其工程应用[J].土木工程学报,2008(06):45-60. |
| [2] | LI Victor C,张亚梅.高延性纤维增强水泥基复合材料的研究进展及应用[J].硅酸盐学报,2007(04):531-536. |
| [3] | 徐世烺,李贺东.超高韧性水泥基复合材料直接拉伸试验研究[J].土木工程学报,2009(09):32-41. |
| [4] | 胡春红,赵铁军,戎涛.应变硬化水泥基复合材料（SHCC）抗拉性能试验研究[J].工业建筑,2012(03):102-106. |
| [5] | 李艳,刘泽军,梁兴文.高性能PVA纤维增强水泥基复合材料单轴受拉特性[J].工程力学,2013(01):322-330. |
| [6] | G. Fischer;Victor C. Li .Effect of fiber reinforcement on the response of structural members[J].Engineering Fracture Mechanics,2007(3):258-272. |
| [7] | Salahuddin Qudah;Mohamed Maalej .Application of Engineered Cementitious Composites (ECC) in interior beam-column connections for enhanced seismic resistance[J].Engineering structures,2014(Jun.15):235-245. |
| [8] | Chang-Geun Cho;Yun-Yong Kim;Luciano Feo;David Hui .Cyclic responses of reinforced concrete composite columns strengthened in the plastic hinge region by HPFRC mortar[J].Composite structures,2012(7):2246-2253. |
| [9] | Alessandro D;Davide B;Martin T .Nonlinear cyclic behavior of hybrid fibre concrete structural walls[J].Engineering Structures,2008,30(2):3141-3150. |
| [10] | M. Maalej;S.T. Quek;S.F.U. Ahmed;J. Zhang;V.W.J. Lin;K.S. Leong.Review of potential structural applications of hybrid fiber Engineered Cementitious Composites[J].Construction and Building Materials,2012:216-227. |
| [11] | Parra-Montesinos G J;Peterfreund S W;Chao S H .Highly damage-tolerant beam colum joints through use of high-pedormance fiber-rcinforced cement composites[J].ACI STRUCTURAL JOURNAL,2005,102(3):487-495. |
| [12] | 张君,刘骞.基于三点弯曲实验的混凝土抗拉软化关系的求解方法[J].硅酸盐学报,2007(03):268-274. |
| [13] | Gopolaratnam Vellorc S .On the characterization of flexural toughness in fiber reinforced concretes[J].Cement and Concrete Composites,1995,17(3):239-254. |
| [14] | Qian S;Li V C .Simplified inverse method for determining the tensile strain capacity of Strain Hardening Cementitious Composites[J].Journal of Advanced Concrete Technology,2007,5(2):235-246. |
| [15] | Toshivuki Kanakubo;Katsuyuki Shimizu;Makoto Katagiri.Tensile Characteristics Evaluation of DFRCC-Round Robin Test Results by JCI-TC[A].Hawaii:RILEM Publications SARL,2005 |
| [16] | Maalej M;Li V C .Flexural/Tensile Strength Ratio in Engineered Cementitious Composite[J].Journal of Materials in Civil Engineering,ASCE,1994,6(4):513-528. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%