钢框架梁柱焊接连接抗震性能试验研究
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摘要
以梁端腹板的扇形孔形状为主要参数,进行了4个足尺钢框架梁柱焊接节点往复加载下的破坏试验。通过对弯矩—塑性转角和弯矩—累积塑性变形倍率试验曲线对比分析表明,扇形孔是节点变形能力和破坏形式的主要影响因素。改进扇形孔构造是一种有效措施,既可提高节点的抗震性能,又能保持制作工艺与传统节点基本相同。
For influencing factor in the form of scallops hole,the failure experiment was done about four full-size specimens of steel frame beam-column welding connections under cyclic loading.Comparative reswcts of movement-plastic corner cure with movement-cumulate plastic deformation multiple cure,show that the scallops hole and the steel tab have primary influence on the plastic deformation capacity and failure modality of beam-column connections.Improvement in the scallops hole is an effective means,because not only is the aseismic behavior improved but also the construction technique is the same as the traditional connections.
For influencing factor in the form of scallops hole,the failure experiment was done about four full-size specimens of steel frame beam-column welding connections under cyclic loading.Comparative reswcts of movement-plastic corner cure with movement-cumulate plastic deformation multiple cure,show that the scallops hole and the steel tab have primary influence on the plastic deformation capacity and failure modality of beam-column connections.Improvement in the scallops hole is an effective means,because not only is the aseismic behavior improved but also the construction technique is the same as the traditional connections.
引文
[1]日本建築学会近畿支部鉄骨構造部会.1995年兵W県南部地震鉄骨造建物被害調查報告[R].东京:日本建築学会近畿支部鉄骨構造部会,1995.
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[6]肖利平.钢框架梁柱节点脆性破坏的分析与改进[J].有色冶金设计与研究,2004,25(4):28-31.
[7]赵大伟,石永久,陈宏.低周往复荷载下梁柱节点的试验研究[J].建筑结构,2000,30(9):3-6.
[8]石永久,李兆凡,陈宏,等.高层钢框架新型梁柱节点抗震性能试验研究[J].建筑结构学报,2002,23(3):2-7.
[2]日本建築学会近畿支部鉄骨構造部会.通しダイアフラム形式で角形鋼管柱に接合されるH形鋼の塑性変形能力に関する実験報告[R].东京:日本建築学会近畿支部鉄骨構造部会,1997.
[3]日本建築学会.鋼構造限界状?指針設計.同解説[S].3.4接合部の設計,1998.
[4]日本建築学会.鉄骨工事技術指針.工場制作編[S].1996.
[5]日本建築学会.鋼構造接合部設計指針[S].4.1柱梁接合部の設計,2001.
[6]肖利平.钢框架梁柱节点脆性破坏的分析与改进[J].有色冶金设计与研究,2004,25(4):28-31.
[7]赵大伟,石永久,陈宏.低周往复荷载下梁柱节点的试验研究[J].建筑结构,2000,30(9):3-6.
[8]石永久,李兆凡,陈宏,等.高层钢框架新型梁柱节点抗震性能试验研究[J].建筑结构学报,2002,23(3):2-7.
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