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工程力学  2013 

合肥新桥机场航站楼大型箱形钢柱的拟静力试验

DOI: 10.6052/j.issn.1000-4750.2012.04.0274, PP. 163-171

Keywords: 大跨度钢结构,箱形钢柱,拟静力试验,抗震性能,腹板宽厚比

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Abstract:

通过8根箱形钢柱在偏心常轴压、柱顶反复水平荷载作用下的拟静力试验,研究地震作用下合肥新桥机场航站楼大型箱形钢柱的壁板稳定性及其抗震性能。试验结果表明:在小震作用下,合肥新桥机场航站楼箱形钢柱处于弹性受力状态,且壁板稳定;在大震作用下,箱形钢柱壁板基本处于弹塑性受力状态,出现塑性变形,但壁板仍然满足稳定性要求。腹板宽厚比是影响构件抗震性能的重要因素,腹板宽厚比越大,滞回曲线越不饱满,试件的承载力及刚度退化越严重。最后,提出大跨度空间结构箱形钢构件的加工制作构造措施及抗震设计建议。

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