CSRC柱型钢截断与锚固措施试验研究
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摘要
进行了6个核心型钢混凝土柱试件的低周反复加载试验,研究了核心型钢在转换层的截断形式和核心型钢在底梁的锚固方式、沿核心型钢弱轴加载等构造措施对核心型钢混凝土柱抗震性能的影响。通过试验研究检验了不同构造措施对试件的破坏形态、强度、变形能力和滞回特性等抗震指标的影响。研究结果表明:本文采用的核心型钢柱中截断的构造措施合理,核心型钢通过底部端板和预埋螺栓与底梁连接的锚固形式基本可靠,沿核心型钢弱轴方向加载对核心型钢混凝土柱的抗震性能影响不明显。以上研究成果可以为工程实践提供参考。
Six core steel reinforced concrete(CSRC) columns are tested under cyclic loading to investigate the influence of truncation details of core steel in the transfer story,embedded ways of core steel in column base and loading directions along strong or weak axis of core steel to the seismic performance of CSRC columns.Emphasis is directed on the influence of different seismic design details of CSRC columns to the failure modes,strength,deformation capacity and hysteretic characteristics of specimens.It is indicated that the truncation details of core steel in transfer story are rational and reliable.The embedded ways of core steel in column base through precast steel bolts and steel plate proposed in this paper are basically reliable.No distinct difference is observed between CSRC columns loading along strong or weak axis of core steel.The results of this paper can be referenced for engineering practice.
Six core steel reinforced concrete(CSRC) columns are tested under cyclic loading to investigate the influence of truncation details of core steel in the transfer story,embedded ways of core steel in column base and loading directions along strong or weak axis of core steel to the seismic performance of CSRC columns.Emphasis is directed on the influence of different seismic design details of CSRC columns to the failure modes,strength,deformation capacity and hysteretic characteristics of specimens.It is indicated that the truncation details of core steel in transfer story are rational and reliable.The embedded ways of core steel in column base through precast steel bolts and steel plate proposed in this paper are basically reliable.No distinct difference is observed between CSRC columns loading along strong or weak axis of core steel.The results of this paper can be referenced for engineering practice.
引文
[1]Toshio Nagashima,Katsuki Takiguchi.Seismic strengthof small size steel encased reinforced concrete columnswith high strength materials[A].Proc.11th World Conf.on Earthquake Engrg[C].Mexico,Paper ID:593,1996
[2]Junichi Sakai,Chiaki Matsui,and Kouichi Minami.Earthquake resistant properties of core steel composite[A].Proc.12th World Conf.on Earthquake Engrg[C].Sydney,Paper ID:1280,2000
[3]刘阳,郭子雄,谢吓弟.核心型钢混凝土柱轴压试验研究[J].哈尔滨工业大学报,2007,39(S.2):137～141Liu Yang,Guo Zi-Xiong,Xie Xia-Di.Experimentalstudy on the ultimate performance of CSRC columnsunder axially loading[J].Journal of Harbin Institute ofTechnology,2007,39(S.2):137～141(in Chinese)
[4]郭子雄,刘阳,黄秋来.高轴压比核心型钢混凝土柱抗震性能试验研究[J].哈尔滨工业大学学报,2007,39(S.2):167～171Guo Zi-xiong,Liu Yang,Huang Qiu-lai.Experimentalstudy on seismic behaviour of core steel reinforcedconcrete columns with high axial load[J].Journal ofHarbin Institute of Technology,2007,39(S.2):167～171(in Chinese)
[5]刘阳,郭子雄,张志伟.核心型钢混凝土柱的轴压比限值试验研究[J].地震工程与工程振动,2008,28(3):82～86Liu Yang,Guo Zi-Xiong,Zhang Zhi-wei.Limited valueof axial compression ratio for CSRC column[J].Earthquake Engineering and Engineering Vibration,2008,28(3):82～86(in Chinese)
[2]Junichi Sakai,Chiaki Matsui,and Kouichi Minami.Earthquake resistant properties of core steel composite[A].Proc.12th World Conf.on Earthquake Engrg[C].Sydney,Paper ID:1280,2000
[3]刘阳,郭子雄,谢吓弟.核心型钢混凝土柱轴压试验研究[J].哈尔滨工业大学报,2007,39(S.2):137～141Liu Yang,Guo Zi-Xiong,Xie Xia-Di.Experimentalstudy on the ultimate performance of CSRC columnsunder axially loading[J].Journal of Harbin Institute ofTechnology,2007,39(S.2):137～141(in Chinese)
[4]郭子雄,刘阳,黄秋来.高轴压比核心型钢混凝土柱抗震性能试验研究[J].哈尔滨工业大学学报,2007,39(S.2):167～171Guo Zi-xiong,Liu Yang,Huang Qiu-lai.Experimentalstudy on seismic behaviour of core steel reinforcedconcrete columns with high axial load[J].Journal ofHarbin Institute of Technology,2007,39(S.2):167～171(in Chinese)
[5]刘阳,郭子雄,张志伟.核心型钢混凝土柱的轴压比限值试验研究[J].地震工程与工程振动,2008,28(3):82～86Liu Yang,Guo Zi-Xiong,Zhang Zhi-wei.Limited valueof axial compression ratio for CSRC column[J].Earthquake Engineering and Engineering Vibration,2008,28(3):82～86(in Chinese)
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