加热炉带壁板足尺钢结构抗震性能试验研究

发布时间：2018-05-15 06:30

本文选题：带壁板钢结构 + 足尺模型　；参考：《工程力学》2014年12期

【摘要】：进行足尺的石化加热炉带壁板钢结构试件在水平反复荷载作用下的试验研究,分析了此类结构的抗震性能。记录试验现象并作数据处理,系统分析了结构的破坏过程、破坏模式和耗能机理,研究了其滞回性能,得到了骨架曲线、刚度退化、延性和耗能能力等指标。试验结果表明,加热炉带壁板钢结构具有良好的延性和耗能性能;滞回曲线饱满呈梭形;钢框架和壁板协同工作良好;加劲肋的设置改善了壁板的受力性能,延缓了壁板的屈曲,提高了壁板的承载力及刚度;结构破坏模式为柱的局部屈曲、柱脚翼缘开裂,壁板发生加劲区格内的局部屈曲;底层梁柱连接部位形成塑性铰。该试验为此类结构的进一步研究及工程应用提供了依据。
[Abstract]:In this paper, the seismic behavior of the steel structures with wall plates in a full-scale petrochemical heating furnace under the action of horizontal repeated loads is studied. The failure process, failure mode and energy dissipation mechanism of the structure are systematically analyzed. The hysteretic properties of the structure are studied, and some indexes, such as skeleton curve, stiffness degradation, ductility and energy dissipation capacity, are obtained. The test results show that the steel structure of heating furnace with wall plate has good ductility and energy dissipation performance; hysteretic curve is full and spindle shape; steel frame and wall plate work well together; the installation of stiffener improves the mechanical performance of wall plate. The buckling of the plate is delayed and the bearing capacity and stiffness of the slab are improved. The failure mode of the structure is the local buckling of the column, the crack of the flange of the column foot, the local buckling of the panel in the stiffening zone, and the plastic hinge of the bottom Liang Zhu joint. The test provides a basis for further study and engineering application of this kind of structures.
【作者单位】：土木工程安全与耐久教育部重点实验室清华大学土木工程系;山东大学土建与水利学院;中国石化工程建设有限公司;
【分类号】：TU352.11;TU391

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