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工程力学  2015 

隔板贯通式箱型柱-H型钢梁节点循环加载试验和破坏机理分析

DOI: 10.6052/j.issn.1000-4750.2013.10.0967, PP. 93-102

Keywords: 箱型中柱-H型钢梁节点,循环加载试验,双折线扩大头,断裂指数,塑性转角,承载力

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Abstract:

对4个双折线隔板贯通式箱型中柱-H型钢梁节点和1个常规节点进行了低周往复循环加载试验,基于考虑焊接缺陷和焊接残余应力的结构钢椭球面断裂模型及偶联的椭球面屈服模型的断裂机理分析,对比研究了双折线扩大头构造对隔板贯通式箱型中柱-H型钢梁节点破坏模式、延性、承载力、刚度退化和耗能性能的影响,揭示了隔板贯通式箱型中柱-H型钢梁节点在强震时断裂和屈服的演化规律。结果显示,常规节点在几何不连续的梁翼缘对接焊缝侧边脆断,节点塑性转角约为0.02rad,达不到FEMA要求的0.03rad。双折线扩大头型节点在隔板折线段内形成塑性铰,节点塑性转角达到0.03rad,承载力和耗能性能较常规节点分别提高10.1%~27.7%和65.5%~123.6%。双折线扩大头构造和梁翼缘对接焊缝移至远离节点区的措施,减缓了节点区的几何突变和应力集中,规避了节点区焊缝过于密集和焊接热影响区的交叉影响,防止了节点过早脆断。该文给出了双折线扩大头节点的构造设计建议。

References

[1]  Stephen A. Mahin. Lessons from damage to steel buildings during the Northridge earthquake [J]. Engineering Structures, 1998, 20(4/5/6): 261―270.
[2]  李国强, 孙飞飞, 沈祖炎. 强震下钢框架梁柱焊接连接的断裂行为[J]. 建筑结构学报, 1998, 19(4): 19―28. Li Guoqiang, Sun Feifei, Shen Zuyan. Fracture behavior of welded beam to column connections of steel moment frames under severe earthquakes [J]. Journal of Building Structures, 1998, 19(4): 19―28. (in Chinese)
[3]  崔鸿超. 日本兵库县南部地区地震震害综述[J]. 建筑结构学报, 1996, 17(1): 2―13. Cui Hongchao. Damage survey in Kobe earthquake, Japan [J]. Journal of Building Structures, 1996, 197(1): 2―13. (in Chinese)
[4]  Chen C C, Lin C C. Seismic performance of steel beam-to-column moment connections with tapered beam flanges [J]. Engineering Structures, 2013, 48(3): 588―601.
[5]  Saneei Nia Z, Ghassemieh M, Mazroi A. WUF-W connection performance to box column subjected to uniaxial and biaxial loading [J]. Journal of Constructional Steel Research, 2013, 88(9): 90―108.
[6]  Gholami M, Deylami A, Tehranizadeh M. Seismic performance of flange plate connections between steel beams and box columns [J]. Journal of Constructional Steel Research, 2013, 84(5): 36―48.
[7]  Mirghaderi S R, Torabian S, Keshavarzi F. I-beam to box-column connection by a vertical plate passing through the column [J]. Engineering Structures, 2010, 32(8): 2034―2048.
[8]  Torabian S, Mirghaderi S R, Keshavarzi F. Moment- connection between I-beam and built-up square column by a diagonal through plate [J]. Journal of Constructional Steel Research, 2012, 70(3): 385―401.
[9]  Goswami R, Murty C V R. Externally reinforced welded I-beam-to-box-column seismic connection [J]. Journal of Engineering Mechanics, 2010, 136(1): 23―30.
[10]  陈以一, 李刚, 庄磊, 等. H型钢梁与钢管柱隔板贯通式连接节点抗震性能试验[J]. 建筑钢结构进展, 2006, 8(1): 23―30. Chen Yiyi, Li Gang, Zhuang Lei, et al. Experimental study on the seismic performance of diaphragm through type joint connecting H beam and tube column in steel frame [J]. Progress in Steel Building Structures, 2006, 8(1): 23―30. (in Chinese)
[11]  薛建阳, 刘祖强, 彭修宁, 等. 大型火电主厂房钢结构异型节点抗震性能试验研究[J]. 建筑结构学报, 2011, 32(7): 133―140. Xue Jianyang, Liu Zuqiang, Peng Xiuning, et al. Experimental study on seismic behavior of abnormal joints in large-scale power plant steel structures [J]. Journal of Building Structures, 2011, 32(7): 133―140. (in Chinese)
[12]  FEMA, Interim guidelines: Evaluation, repair, modification and design of steel moment frames [R]. FEMA-267, Rep., No. SAC-95-02, SAC Joint V Enture, California, 1995.
[13]  王万祯, 陈飞益, 黄友钱, 等. 箱型柱-H型钢梁节点断裂机理及梁翼缘扩大头和长槽孔节点研究[J]. 工程力学, 2013, 30(6): 197―204. Wang Wanzhen, Chen Feiyi, Huang Youqian, et al. Fracture mechanism of joint of H-style steel beam-square steel tubular column and study on joints with horizontal haunch and slot holes at beam flanges [J]. Engineering Mechanics, 2013, 30(6): 197―204. (in Chinese)
[14]  刘洪波, 谢礼立, 邵永松. 钢结构箱形柱与工字梁刚性节点有限元分析[J]. 哈尔滨工业大学学报, 2007, 39(8): 1211―1215. Liu Hongbo, Xie Lili, Shao Yongsong. Finite element analyses of the rigid connections with steel box columns and I section beams [J]. Journal of Harbin Institute of Technology, 2007, 39(8): 1211―1215. (in Chinese)
[15]  GB 50017-2003, 钢结构设计规范[S]. 北京: 中国计划出版社, 2003. GB 50017-2003, Code for seismic design of steel structures [S]. Beijing: China Planning Press, 2003. (in Chinese)
[16]  GB 50011-2010, 建筑抗震设计规范[S]. 北京: 中国计划出版社, 2010. GB 50011-2010, Code for seismic design of building [S]. Beijing: China Planning Press, 2010. (in Chinese)
[17]  JGJ 99-98, 高层民用建筑钢结构技术规程[S]. 北京: 中国建筑工业出版社, 1998. JGJ 99-98, Technical specification for steel structure of tall buildings [S]. Beijing: China Planning Press, 1998. (in Chinese)
[18]  林克强, 庄胜智, 张福全, 等. 典型钢梁与箱型柱采用梁翼切削或梁翼加盖板抗弯接头的破坏模式[J]. 建筑钢结构进展, 2010, 12(2): 1―12. Lin Keqiang, Zhuang Shengzhi, Zhang Fuquan, et al. Cyclic behavior and failure modes of steel beam-to-column connections with RBS and cover plates [J]. Progress in Steel Building Structures, 2010, 12(2): 1―12. (in Chinese)
[19]  GB/T 228-2002, 金属材料室温拉伸试验[S]. 北京: 中国计划出版社, 2002. GB/T 228-2002, Metallic Materials-Tensile Testing at Ambient Temperature [S]. Beijing: China Planning Press, 2002. (in Chinese)
[20]  GB 50205-2001, 钢结构工程施工质量验收规范[S]. 北京: 中国计划出版社, 2002. GB 50205-2001, Code for Acceptance of Construction Quality of Steel Structures [S]. Beijing: China Planning Press, 2002. (in Chinese)
[21]  郑长卿, 周利, 张克实. 金属韧性破坏的细观力学及其应用研究[M]. 北京: 国防工业出版社, 1995: 118―165. Zheng Changji, Zhou Li, Zhang Keshi. The ductile damage of metals in meso-mechanics and the application research [M]. Beijing: National Defense Industry, 1995: 118―165. (in Chinese)
[22]  王万祯. 结构钢开裂准则及断裂试验分析[J]. 工程力学, 2008, 25(5): 27―31. Wang Wanzhen. Crack criterion and fracture tests of structural steel [J]. Engineering Mechanics, 2008, 26(5): 27―31. (in Chinese)
[23]  Wang W, Qian X, Su R, Wang X. Tensile tests and analyses of notched specimens fabricated from high strength steels using a generalized yield model [J]. Fatigue & Fracture of Engineering Materials & Structures, 2010, 33(5): 310―319.

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