| 组合钢管混凝土式防屈曲支撑 |
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| 引用本文： | 梅洋,吴斌,赵俊贤,郝贵强,杜永山.组合钢管混凝土式防屈曲支撑[J].灾害学,2010,25(Z1). |
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| 作者姓名： | 梅洋 吴斌 赵俊贤 郝贵强 杜永山 |
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| 作者单位： | 1. 哈尔滨工业大学,黑龙江,哈尔滨,150090
2. 河北大地建设科技有限公司,河北,石家庄,050011 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)项目(2007CB71204); 国家科技支撑计划项目(2006BAJ06B03、2006BAJ03B06) |
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| 摘 要： | 由于河北省图书馆加固改造工程的实际需要,开发出了一种新型组合钢管混凝土式防屈曲支撑。该新型支撑解决了全钢型防屈曲支撑在大长度时难以满足稳定性的问题,而且比起传统钢管混凝土约束的防屈曲支撑,无需考虑内芯与混凝土之间的粘结力问题,加工过程简便、施工速度快,且质量容易控制。现已对此类新型支撑完成了短试件和足尺试件的拟静力滞回性能试验,试验结果表明,新型支撑的滞回曲线饱满稳定,整体稳定性和局部稳定性较好,满足工程要求。
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| 关 键 词： | 防屈曲支撑 钢管混凝土 足尺试件 滞回性能 |
Buckling-restrained Braces with Combined Concrete-filled Steel Tubes (CFST) |
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| Mei Yang,Wu Bin,Zhao Junxian,Hao Guiqiang,Du Yongshan.Buckling-restrained Braces with Combined Concrete-filled Steel Tubes (CFST)[J].Journal of Catastrophology,2010,25(Z1). |
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| Authors: | Mei Yang Wu Bin Zhao Junxian Hao Guiqiang Du Yongshan |
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| Institution: | Mei Yang1,Wu Bin1,Zhao Junxian1,Hao Guiqiang2 and Du Yongshan2(1.Harbin Institute of Technology,Harbin 150090,China,2.Hebei Dadi Civil Engineering CO.,LTD,Shijiazhuang 050011,China) |
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| Abstract: | A novel type of buckling-restrained brace with two combined concrete-filled steel tubes as the casing and a core plate as the steel core has been developed by the authors for seismic retrofit of the Hebei Provincial Library.The new BRB has the advantages of higher anti-buckling capacity than the traditional all-steel BRBs especially for long braces.Moreover,unlike the traditional BRBs with CFST as the casing,the bond-stress between the core and the concrete in this new BRB can be avoided,which will facilita... |
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| Keywords: | buckling-restrained brace concrete-filled steel tube full-scale test hysteretic behavior |
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