| 钢筋钢丝网砂浆加固混凝土柱的抗震性能试验研究 |
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| 引用本文： | 孙延华, 刘金伟, 吴小勇, 熊光晶. 钢筋钢丝网砂浆加固混凝土柱的抗震性能试验研究[J]. 工程力学, 2014, 31(3): 181-186. DOI: 10.6052/j.issn.1000-4750.2012.10.0774 |
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| 作者姓名： | 孙延华 刘金伟 吴小勇 熊光晶 |
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| 作者单位： | 1.汕头大学土木工程系, 广东, 汕头 515063;;2.三峡大学土木工程系, 湖北, 宜昌 443002 |
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| 基金项目： | 国家自然科学基金面上项目(50978159);广东省自然科学基金重点项目(8251503101000002) |
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| 摘 要： | 为更有效提高抗震加固效率, 提出采用钢筋钢丝网砂浆加固混凝土柱的思路。制作钢筋钢丝网砂浆加 固、钢筋网砂浆加固和未加固钢筋混凝土方柱三类共9个试件, 进行各柱在竖向恒定轴力和水平向低周反复加载作用下的抗震性能对比试验研究, 测试了各柱的抗震承载力、延性、破坏形态及其滞回特性, 讨论了配箍率、加固形式和轴压比对构件抗震性能的影响。结果表明：相对钢筋网加固柱, 钢筋钢丝网加固柱的耗能能力有大幅度的提高。
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| 关 键 词： | 钢筋钢丝网 轴压比 滞回曲线 延性 耗能 |
| 收稿时间： | 2012-10-20 |
SEISMIC BEHAVIOR OF RC COLUMNS STRENGTHENED WITH STEEL BAR/WIRE MESH MORTAR |
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| SUN Yan-hua, LIU Jin-wei, WU Xiao-yong, XIONG Guang-jing. SEISMIC BEHAVIOR OF RC COLUMNS STRENGTHENED WITH STEEL BAR/WIRE MESH MORTAR[J]. Engineering Mechanics, 2014, 31(3): 181-186. DOI: 10.6052/j.issn.1000-4750.2012.10.0774 |
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| Authors: | SUN Yan-hua LIU Jin-wei WU Xiao-yong XIONG Guang-jing |
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| Affiliation: | 1.Deptment of Civil Engineering, Shantou University, Shantou, Guangdong 515063, China; 2. Deptment of Civil Engineering, Sanxia University, Yichang, Hubei 443002, China |
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| Abstract: | In order to enhance the seismic behavior of reinforced concrete (RC) columns more efficiently, a method to strengthen concrete columns by using steel bar/wire mesh mortar (FS)was proposed. Nine RC square columns were produced. They were divided into three groups, namely FS strengthed columns, steel bar mat mortar (S) strengthened columns and a unstrengthed control column, respectively. A comparative experimental study under constant axial loading and lateral cyclic loading was carried out. Seismic bearing capacity, ductility, failure modes and hysteretic characteristics of all columns were tested, and the influence of reinforcement ratio, strengthening method and axial load ratio on the seismic behavior of tested columns was analyzed. The results show that the energy dissipation capacity of FS strengthened columns is significantly higher than that of the S strengthened columns and that of the unstrengthed control column. |
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| Keywords: | steel bar/wire mortar axial load ratio hysteretic curve ductility energy dissipation |
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