| 钢框架刚性连接加强型节点滞回性能试验研究 |
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| 引用本文： | 王燕,冯双,王玉田.钢框架刚性连接加强型节点滞回性能试验研究[J].土木工程学报,2011(5). |
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| 作者姓名： | 王燕 冯双 王玉田 |
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| 作者单位： | 青岛理工大学;上海宝冶钢构设计院; |
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| 基金项目： | 国家自然科学基金(51078194); 国家标准专项科研课题(GB500172010-18) |
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| 摘 要： | 针对加强板参数对钢框架梁柱节点抗震机理的影响,设计制作4个翼缘过渡板和4个盖板加强型节点试件,采用1/2缩尺比例的T型试件进行低周反复循环荷载作用下的滞回性能试验研究,并在试验研究基础上采用有限元ANSYS进行数值模拟分析,得到满足节点抗震设计要求的加强板参数取值依据。研究结果表明板式加强型节点的塑性铰在距离加强板端部1/3～1/4梁高位置形成,梁柱连接焊缝均未出现开裂现象,翼缘局部屈曲明显,腹板鼓凸严重,塑性铰现象十分明显;加强板几何参数对节点的承载力和延性均有明显影响,当加强板的长度和厚度增加时,节点承载力有所提高,但其滞回性能和延性性能降低;加强板长度取值过大,节点域在梁塑性铰形成和外移之前发生剪切屈服破坏,限制了加强板末端塑性变形的发展机制。建议加强板参数取值范围:翼缘过渡板或盖板加强板的长度为梁高的0.5～0.8倍;翼缘过渡板厚度为梁翼缘厚度的1.2～1.4倍,盖板加强板厚度为梁翼缘厚度的0.7～1.2倍。
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| 关 键 词： | 加强板参数 滞回性能 塑性铰 试验研究 |
Experimental study on hysteretic behavior for rigid-reinforced connections |
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| Wang Yan Feng Shuang Wang Yutian.Experimental study on hysteretic behavior for rigid-reinforced connections[J].China Civil Engineering Journal,2011(5). |
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| Authors: | Wang Yan Feng Shuang Wang Yutian |
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| Affiliation: | Wang Yan1 Feng Shuang2 Wang Yutian1(1.Qingdao Technological University,Qingdao 266033,China,(2.Shanghai BaoYe Steel Structure Design Research Institute,Shanghai 201900,China) |
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| Abstract: | Some 0.5-scaled T-shape specimens,including 4 cover-plate reinforced connections and 4 flange-plate reinforced connections,were manufactured and tested under cyclic loading to study the effects of reinforced-plate parameters to seismic behavior of connections.Based on the experimental results,numerical analyses were adopted to study reinforced-plate parameters.The results indicated that the plastic hinge was obviously formed at 1/3~1/4 beam depth from the end of the reinforced-plate and there was no fractur... |
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| Keywords: | parametres of reinforced-plate hysteretic behavior plastic hinge experimental study |
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