不同ECC加固措施对空斗墙抗震性能的影响

PDF(1464 KB)

振动与冲击 ›› 2020, Vol. 39 ›› Issue (22) : 248-253.

论文

周铁钢，张再昱，邓明科，樊鑫淼

作者信息 +

Effect of different ECC reinforcement measures on the seismic performance of cavity-wall

ZHOU Tiegang， ZHANG Zaiyu， DENG Mingke， FAN Xinmiao

Author information +

文章历史 +

摘要

空斗墙结构房屋是我国南方地区具有地方特色的传统民居，在历次地震中，房屋倒塌现象严重，造成了巨大的经济损失。为了改善空斗墙的抗震性能，减少房屋倒塌事故，采用高延性纤维增强水泥基复合材料（ECC）对其进行加固。本文设计了三种加固措施，分别为十字式、边框式和一面边框式一面抹面式，通过墙体拟静力试验对其加固效果进行研究，分析了不同措施试对滞回曲线、骨架曲线和刚度退化曲线的影响。试验结果表明：采用ECC加固后的空斗墙体初始刚度、承载力、变性能力和耗能能力均有显著提高，有效改善空斗墙体的抗震性能；ECC对空斗墙具有良好的约束能力，能够改善墙体脆性破坏模式。ECC加固经过砌体加固工程实践的论证，证明该方法施工简便，可节约造价约30%，具有良好的推广应用价值。

Abstract

The cavity-wall houses are traditional houses in southern China.In the past earthquakes, the collapse of houses was serious, causing huge economic loss.In order to improve the seismic performance and collapse resistance of cavity-wall, high ductile fiber reinforced engineered cementitious composite (ECC) material were used to reinforce them.Three kinds of reinforcement measures were designed, namely, the cross type, frame type and frame plastering type.The reinforcement effect was studied through pseudo-static tests of the wall, and the effects of different measures on the hysteresis curve, skeleton curve and stiffness degradation curve were analyzed.The test results show that the initial stiffness, bearing capacity, degeneration ability and energy consumption capacity of the cavity-wall reinforced with ECC are significantly improved, which effectively improves the seismic performance of the cavity-wall.ECC has a good ability to restrain the cavity-wall and improve the brittle failure mode of the wall.ECC reinforcement effect was further proved by the practice in masonry reinforcement engineering.The method is simple in construction, can save about 30% of the cost, and has good promotion and application value.

导出引用

周铁钢，张再昱，邓明科，樊鑫淼. 不同ECC加固措施对空斗墙抗震性能的影响[J]. 振动与冲击, 2020, 39(22): 248-253

ZHOU Tiegang， ZHANG Zaiyu， DENG Mingke， FAN Xinmiao. Effect of different ECC reinforcement measures on the seismic performance of cavity-wall[J]. Journal of Vibration and Shock, 2020, 39(22): 248-253

参考文献

[1] 陈伟, 王婷, 曾鹏, 等. BFRP加固低强度空斗墙抗震性能试验研究[J]. 建筑结构, 2017, 47(24):55-59. (CHEN Wei, WANG Ting, ZENG Peng, et al. Experimental study on seismic behavior of BFRP reinforced low strength rowlock wall[J]. Building Structure, 2017, 47 (24): 55-59. (in Chinese))
[2] 王英, 闫凯, 徐国洲, 等. 钢筋网水泥砂浆面层加固砖墙受剪承载力分析[J]. 华中科技大学学报(自然科学版), 2013, 41(01):122-127. (WANG Ying, YAN Kai, XU Guozhou, et al. Analyzing shear capacity of brick masonry walls strengthened with reinforced mortar layers[J]. Journal of Huazhong University of Science and Technology (Natural Science Edition), 2013, 41 (1): 122-127. (in Chinese))
[3] 于文, 葛学礼, 朱立新. 村镇两层空斗砖墙房屋模型振动台对比试验研究[J].工程抗震与加固改造, 2011, 33(6):63-69. (YU Wen, GE Xueli, ZHU Lixin. Comparative experimental research on shaking table test of two-storey cavity-wall building in villages and towns [J]. Earthquake Resistant Engineering and Retrofitting, 2011, 33 (6): 63-69. (in Chinese))
[4] 尚守平,雷敏,奉杰超,等.空斗墙抗剪性能试验研究及有限元分析[J].地震工程与工程振动,2013,33(1):88-96. (SHANG Shouping, LEI Min, FENG Jiechao, et al. Experimental study on shear behavior and finite element analysis of row lock wall [J]. Earthquake Engineering and Engineering Vibration, 2013, 33 (1): 88-96. (in Chinese))
[5] VALLUZZI M R, TINAZZI D, MODENA D. Shear behavior of masonry panels strengthened by FRP laminates[J]. Construction and Building Materials, 16(7):409-416.
[6] SHRIVE N G. The use of fibre reinforced polymers to improve seismic resistance of masonry[J]. Construction and Building Materials, 2006, 20(4):269-277.
[7] 曹万林, 张思, 周中一, 等. 基础滑移隔震土坯组合砌体结构振动台试验[J]. 自然灾害学报, 2015, 24(6):131. (CAO Wanlin, ZHANG Si, ZHOU Zhongyi, et al. Shake table test study on composite adobe masonry structure with sliding base isolation[J] .Journal of Natural Disasters, 2015,24 (6): 131. (in Chinese))
[8] 曹万林, 张彩红, 叶炜,等. 不同构造土坯墙玻璃珠-石墨滑移隔震体系受力性能试验[J]. 世界地震工程, 2017, 33(2):169.(CAO Wanlin, ZHANG Caihong, YEWei, et al. Mechanical experiment study on sliding isolation system of glass beads-graphite adobe wall with different structure[J]. World Earthquake Engineering, 2017, 33 (2): 169. (in Chinese))
[9] BORRI A , CASTORI G , CORRADI M . Shear behavior of masonry panels strengthened by high strength steel cords[J]. Construction and Building Materials, 2011, 25(2):494-503.
[10] 邓明科, 樊鑫淼, 高晓军, 等. ECC面层加固受损砖砌体墙抗震性能试验研究[J]. 工程力学, 2015, 32(4):120-129. (DENG Mingke, FAN Xinmiao, GAO Xiaojun, et al. Experimental investigation on seismic behavior of damaged brick masonry wall strengthened with ECC splint [J]. Engineering Mechanics, 2015, 32 (4): 120-129. (in Chinese))
[11] 奉杰超, 尚守平, 刘沩, 等. 空斗墙墙片的拟静力试验研究[J].铁道科学与工程学报, 2009, 6(3):31-35. (FENG Jiechao, SHANG Shouping, LIU Yi, et al. Quasi-static tests on rowlock cavity wall[J]. Journal of Railway Science and Engineering, 2009, 6 (3): 31-35. (in Chinese))
[12] 尚守平, 季超群, 刘沩. 高性能复合砂浆钢筋网加固空斗墙的试验研究[J]. 湘潭大学自然科学学报, 2010, 32(2):51-56. (SHANG Shouping, JI Chaoqun, LIU Zheng. Experimental study on rowlock cavity Wall strengthened with HPFL [J]. Journal of Natural Science of Xiangtan University, 2010, 32 (2): 51-56. (in Chinese))
[13] 尚守平, 刘一斌, 姜巍, 等. HPFL加固空斗墙砌体抗压强度试验研究[J]. 郑州大学学报(工学版), 2010, 31(6):19-23. (SHANG Shouping, LIU Yibin, JIANG Wei, et al. Experimental investigation on row-lock cavity masonry strengthened with HPFL[J]. Journal of Zhengzhou University (Engineering Science Edition), 2010, 31 (6): 19-23. (in Chinese))
[14] 尚守平, 雷敏, 奉杰超, 等. 空斗墙抗剪性能试验研究及有限元分析[J].地震工程与工程振动,2013,33(1):88-96. (SHANG Shouping, LEI Min, Feng Jichao, et al. Experimental study on shear behavior and finite element analysis of row lock wall[J]. Earthquake Engineering and Engineering Vibration, 2013, 33 (1): 88-96. (in Chinese))
[15] 建筑砂浆基本性能试验方法标准：JGJ/T70-2009[S]. 北京：中国建筑工业出版社(Standard for test method of basic performance of building mortar: JGJ / T70-2009 [S]. Beijing: China Construction Industry Press. (in Chinese))
[16] 纤维混凝土试验方法标准：CECS13:2009[S]. 中国计划出版社, 2009.(Fiber concrete test method standard: CECS13: 2009[S]. China Planning Press, 2009. (in Chinese))
[17] 砌墙砖试验方法：GB/T2542-2012[S].中国计划出版社. 2012.(Test method for wall bricks：GB / T2542-2012[S] . China Planning Press. 2012. (in Chinese))
[18] 建筑抗震设计规范:GB50011-2010[S]. 北京：中华人民共和国国家标准，2010:342.(Code for seismic design of buildings: GB50011-2010 [S]. Beijing: National Standard of the People's Republic of China, 2010: 342. (in Chinese))
[19] 周铁钢, 田鹏, 邓明科, 等. 高延性纤维增强水泥基复合材料加固空斗墙承重房屋模型振动台试验研究[J]. 建筑结构学报, 2018, 39(12):147-152. (ZHOU Tiegang, TIAN Peng, DENG Mingke, et al. Research on shaking table test of cavity-wall building strengthened with engineered cementitious composite[J]. Journal of Building Structures, 2018, 39 (12):147-152. (in Chinese))
[20] 邱文亮, 田甜, 张哲. 反复荷载作用下钢管混凝土组合桥墩抗震性能试验研究[J]. 振动与冲击, 2019, 38(17):156-164+183. (QIU Wenliang, TIAN Tian, ZHANG Zhe. Experimental Study on Seismic Performance of Concrete-filled Steel Tubular Piers under Repeated Loads[J]. Vibration and Shock, 2019, 38 (17): 156-164 + 183.