酸、碱、氯盐对玄武岩纤维布加固钢筋混凝土梁抗弯性能的影响*
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（天津城建大学土木工程学院， 天津 300384）［摘要］分别通过对酸、碱、氯盐溶液腐蚀60d后的玄武岩纤维布加固钢筋混凝土梁进行的静力抗弯试验，研究了三种溶液对玄武岩纤维布加固既有损伤钢筋混凝土梁抗弯性能的影响。结果表明：三种溶液均降低了试验梁承载能力，粘贴相同层数纤维布时，随溶液浓度增加，试验梁承载能力有降低趋势，且随纤维布粘贴层数增加，此种降低趋势越加明显；三种溶液中氯盐溶液影响最小；三种溶液对试验梁的破坏形态影响较小。［关键词］玄武岩纤维布; 酸溶液; 碱溶液; 氯盐溶液; 既有损伤梁; 加固中图分类号：TU375.1 文献标识码：A 文章编号：1002-848X(2015)09-0081-05Effects of acid, alkaline and chlorine salt on flexural behavior of reinforced concrete beams strengthened by basalt fiber clothWang Hailiang, Wang Bo, Yang Xinlei, Ye Shengping(School of Civil Engineering, Tianjin Chengjian University, Tianjin 300384, China)Abstract: Through static bending tests of basalt fiber cloth strengthening reinforced concrete beams corroded by acid solution, alkaline solution and chlorine salt solution for 60d respectively, effects of three kinds of solutions on flexural behavior of damaged concrete beam strengthened by basalt fiber cloth were studied. The results show that all of three kinds of solution reduce the bearing capacities of test beams. When the same number of fiber cloth layer was pasted the bearing capacity of test beam has a decreasing tendency with the increase of solution concentration, and with the increase of fiber cloth layer, the above increasing trend is more obvious. The effect of chlorine salt solution in three solutions is the minimum. The effects of three solutions on failure pattern of test beam are minor.Keywords: basalt fiber cloth; acid solution; alkaline solution; chlorine salt solution; damaged beam; strengthening*天津市自然科学基金重点项目（12JCZDJC28900），天津市科技兴海项目（KJXH2012-19）。作者简介：王海良，教授，硕士生导师，Email:wanghailiang6601@126.com。参考文献［1］项海帆,吴定俊. 我国铁路桥梁的现状和展望［J］. 铁道建筑技术, 2001(2): 1-5.［2］吴刚,吴智深,胡显. 玄武岩纤维在土木工程中的应用研究现状及进展［C］//第五届全国FRP学术交流会论文集. 2007: 422-427.［3］陈尚建,欧阳普英,苏先科,等. 玄武岩纤维增强复合材料(BFRP)力学性能的试验研究［J］. 建筑结构, 2007,37(IS):130-132.［4］ACI 440.2R-08 Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures［S］. Farmington Hills：ACI Committee Institute, 2000.［5］ACI 318-11 Building code requirements for structural concrete and commentary［S］. Farmington Hills：ACI Committee Institute, 2011.［6］GB 50367—2013混凝土结构加固设计规范［S］. 北京：中国建筑工业出版社，2013.［7］刘丽梅,张伟平,顾祥林,等. 碳纤维布与混凝土的粘结性能及其耐久性研究［J］. 建筑结构,2006,36(IS):756-759.［8］杨勇新,胡海涛,王希宾. 盐雾侵蚀条件下玄武岩纤维布加固混凝土构件的耐久性试验［J］. 工业建筑, 2010,40(4): 1-4.［9］杨勇新,陈伟,马明山. 海水干湿交变环境下玄武岩纤维布耐久性能［J］. 工业建筑, 2010,40(4): 5-8.［10］郭旗,潘建伍,吴刚. 冻融循环及盐溶液作用下玄武岩纤维布耐久性试验研究［J］. 工业建筑, 2010, 40(4): 17-21.［11］胡海涛,杨勇新,顾习峰. 紫外线对玄武岩纤维布加固钢筋混凝土柱性能影响的试验研究［J］. 工业建筑, 2012, 42(2): 134-138.［12］SHI JIAWEI, ZHU HONG, WU ZHISHEN, et al. Bond behavior between basalt fiber\|reinforced polymer sheet and concrete substrate under the coupled effects of freeze-thaw cycling and sustained load［J］. Journal of Composites for Construction, 2012,17(4):530-542.［13］孙晓燕，董伟伟，王海龙，等. 侵蚀性环境下桥梁 CFRP/BFRP加固后的长期性能试验［J］. 中国公路学报, 2013, 26(2): 77-84.［14］胡海涛, 王希宾, 杨勇新. 玄武岩纤维片材在盐雾侵蚀条件下的耐久性试验研究［J］. 工业建筑, 2010, 40(4): 9-12.［15］欧阳煜, 王鹏, 李翔. 玄武岩纤维布加固钢筋混凝土梁受弯试验研究［J］. 建筑结构, 2008, 38(11): 74-77.
