THE STRAIN ANALYSIS OF SHEAR-STRENGTHENED DAMAGED RC DEEP BEAMS WITH EXTERNAL BF SHEET

Abstract

Abstract: In order to study the change regularity of strain of shear-strengthened damaged RC deep beams with basalt fiber reinforced polymer (BFRP) sheets, six damaged RC deep beams were tested after being shear-strengthened using BF sheets. The failure process and failure mode of the six damaged RC deep beams were studied with different shear span ratio and different ways of paste. And, the strain distribution rules of BF sheets and concrete and the different factors that affect the strain distribution were also analyzed. It lays the foundation for the theoretical calculation analysis of shear-strengthened damaged RC deep beams.

Key words: BF sheet, shear-strengthen, damaged RC deep beam, strain

CLC Number:

TB332

LIU Hua-xin, SUN Ying-ming, WANG Xue-zhi, KONG Xiang-qing. THE STRAIN ANALYSIS OF SHEAR-STRENGTHENED DAMAGED RC DEEP BEAMS WITH EXTERNAL BF SHEET[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(1): 64-68.

References

[1] Amir Mofidi, M.ASCE. Shear Strengthening of RC Beams with Externally Bonded FRP Composites: Effect of Strip-Width-to-Strip-Spacing Ratio[J]. Journal of Composites for Construction, 2011, 50(2): 732-742.
[2] Amir Mofidi, M.ASCE. Shear Strengthening of RC Beams with EB FRP: Influencing Factors and Conceptual Debonding Model[J]. Journal of Composites for Construction, 2011, 21(5): 62-74.
[3] OUYANG L J,LU Z D,CHEN W Z. Flexural Experimental Study on Continuous Reinforced Concrete Beams Strengthened with Basalt Fiber Reinforced polymer/Plastic[J]. Journal of Shanghai Jiaotong University, 2012, 17( 5) : 613-618.
[4] Huang L H,Li Y J,Wang Y F. Strengthening effects of BFRP on reinforced concrete beams[J]. Journal of Southeast University,2013,29( 2) : 182-186.
[5] Imran A. Bukhari, Robert Vollum, Saeed Ahmad, Juan Sagaseta. Shear Strengthening of Short Span Reinforced Concrete Beams with CFRP Sheets[J]. Arab J Sci Eng, 2013, 38: 523-536.
[6] 孙衍英, 刘依琳, 胡海涛. 玄武岩纤维布加固钢筋混凝土梁受力性能的研究[J]. 青岛理工大学学报, 2010, 31(1): 29-32.
[7] 王作虎, 杜修力, 詹界东, 邓宗才. FRP筋混凝土梁抗剪性能的研究进展[J]. 玻璃钢/复合材料, 2010, (1): 82-85.
[8] 顾兴宇, 沈新, 陆家颖. 玄武岩纤维筋拉伸力学性能试验研究[J]. 西南交通大学学报, 2010, 45(6): 914-919.
[9] 林于东, 宗周红, 陈宏磊. 粘钢加固混凝土梁受剪性能试验研究[J]. 建筑结构学报, 2011, 32(8): 90-98.
[10] 董江峰, 王清远, 何东, 彭泽伟. 碳纤维布加固钢筋混凝土梁受力性能的试验研究[J]. 应用力学学报, 2011, 28(5): 521-526.
[11] 袁鸿, 李庆, 萧澎伟, 刘洪瑞. 侧面黏贴纤维复合材料的抗剪加固梁破坏机理[J]. 暨南大学学报, 2012, 33(5): 463-467.
[12] 蔺新艳,孟海平,杨健辉,朱小静.加固钢筋混凝土梁实用刚度模型[J].玻璃钢/复合材料, 2013, (3): 13-17.
[13] 欧阳利军, 陆洲导,丁斌. 玄武岩纤维布加固混凝土连续梁抗弯试验研究[J]. 玻璃钢/复合材料, 2013, (2): 3-7.
[14] 宗周红, 程怡, 黄学漾, 林于东. CFRP板加固 RC&PPC梁抗剪性能试验研究[J]. 工程力学学报, 2013, 30(6): 236-246.
[15] 刘沐宇, 李开兵. 碳纤维布加固混凝土梁的疲劳性能试验研究[J]. 土木工程学报, 2005, 38(9): 33-36.
[16] 王苏岩, 杨玫. 碳纤维布加固已损伤高强钢筋混凝土梁抗弯性能试验研究[J]. 工程抗震与加固改造, 2006, 28(2): 93-96.
[17] 陈凤山, 赵国藩, 王兆忠. CFRP加固损伤钢筋混凝土梁的性能试验[J]. 建筑科学与工程学报, 2008, 25(4): 117-122.
[18] 徐春林, 艾军, 陈斌, 林森, 陈耀清. 预应力碳纤维布加固损伤梁疲劳性能试验研究[J]. 工业建筑, 2011, 41(7): 129-132.
[19] 孙晓燕, 徐冲, 何勇, 毛江鸿, 张海义. CFRP加固初始损伤桥梁构件性能监测试验研究[J]. 应用基础与工程科学学报, 2012, 20(3): 509-515.