现浇箱梁格构式钢管柱支撑体系稳定性研究 |
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引用本文: | 孙波勇,朱光华,王峰原. 现浇箱梁格构式钢管柱支撑体系稳定性研究[J]. 重庆建筑, 2014, 0(1): 50-52 |
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作者姓名: | 孙波勇 朱光华 王峰原 |
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作者单位: | [1]重庆城建控股集团有限责任公司,重庆400013 [2]中国新兴建设开发总公司,北京100039 |
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摘 要: | 为了研究现浇箱梁施工中格构式钢管柱支撑体系的稳定性,分别建立不同条件下的有限元模型并对其进行屈曲分析,研究模型在不同纵、横向布置及高度条件下的屈曲荷载并对其比较分析,得出了对格构式钢管柱支撑体系稳定性最为有利的纵横向布置及适用高度范围,工程应用表明,采用此布置的格构式钢管柱支撑体系能较好地适应桥墩高、跨径较大的现浇连续箱梁施工。
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关 键 词: | 现浇箱梁 格构式钢管柱 梁柱式支撑体系 屈曲分析 |
Stability Study on Lattice Steel Column Supporting System of Cast-in-place Box Girder |
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Abstract: | In oder to study the stability of lattice steel column supporting system in the construction process of cast-in-place box girder, finite element models under different circumstances are established for buckling analysis. Buckling loads of the models under different vertical and horizontal layout and height are studied and comparatively analyzed. The most favourable arrangement and applicable height range are obtained in this study. The engineering application shows that lattice steel column supporting system with this arrangement can better adapt to the cast-in-place continuous box girder of high piers and large span. |
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Keywords: | cast-in-place box girder lattice steel column beam-colunm supporting system buckling analysis |
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