新型预制管混凝土柱抗震性能试验

发布时间：2018-04-27 08:25

本文选题：预制管混凝土柱 + 抗震性能　；参考：《哈尔滨工程大学学报》2017年04期

【摘要】：采用预制管代替钢管混凝土柱中的钢管形成一种新型的预制管混凝土柱。为了研究新型预制管混凝土柱抗震性能,制作了1根预制管混凝土柱和1根对比的钢筋混凝土柱,研究二者在低周往复荷载作用下的破坏过程、滞回曲线、骨架曲线、承载力、变形及延性。结果表明:预制管混凝土柱和钢筋混凝土柱破坏模式都为弯剪破坏;预制管混凝土柱滞回曲线呈现梭形,曲线饱满,具有良好的耗能能力;预制管混凝土柱的承载力、延性系数和弹塑性层间位移角比相应的钢筋混凝土柱都大,等效粘滞阻尼系数钢筋混凝土柱略大于预制管混凝土柱。新型预制混凝土柱具有钢筋混凝土柱的抗震性能,能够满足抗震要求。
[Abstract]:A new type of precast tubular concrete column is formed by replacing the steel tube in the concrete filled steel tube column. In order to study the seismic behavior of a new type of precast tubular concrete column, a precast tubular concrete column and a contrast reinforced concrete column were made. The failure process, hysteretic curve, skeleton curve, bearing capacity of the two columns under low cycle reciprocating load were studied. Deformation and ductility. The results show that the failure modes of precast tubular concrete columns and reinforced concrete columns are flexural shear failure, the hysteretic curves of precast tubular concrete columns are fusiform, the curves are full, and they have good energy dissipation capacity. The ductility coefficient and elastic-plastic interstory displacement angle are larger than the corresponding reinforced concrete columns, and the equivalent viscous damping coefficient of reinforced concrete columns is slightly larger than that of precast tubular concrete columns. The new precast concrete columns have the seismic performance of reinforced concrete columns and can meet the seismic requirements.
【作者单位】：天津大学建筑工程学院;河北工业大学土木工程学院;
【基金】：国家自然科学基金项目(51379142) 河北省科技厅基金项目(15275802)
【分类号】：TU352.11;TU398.9

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