赵毅, 徐礼华, 程康, 刘斌. 劲性环梁式钢管混凝土节点受力性能研究[J]. 工程力学, 2013, 30(增刊): 241-247. DOI: 10.6052/j.issn.1000-4750.2012.06.S068
引用本文: 赵毅, 徐礼华, 程康, 刘斌. 劲性环梁式钢管混凝土节点受力性能研究[J]. 工程力学, 2013, 30(增刊): 241-247. DOI: 10.6052/j.issn.1000-4750.2012.06.S068
ZHAO Yi, XU Li-hua, CHENG Kang, LIU Bin. A ANALYSIS ON THE MECHANICAL BEHAVIOR OF STEEL REINFORCED RING-BEAM CONNECTIONS OF CONCRETE FILLED STEEL COLUMN AND RC BEAM[J]. Engineering Mechanics, 2013, 30(增刊): 241-247. DOI: 10.6052/j.issn.1000-4750.2012.06.S068
Citation: ZHAO Yi, XU Li-hua, CHENG Kang, LIU Bin. A ANALYSIS ON THE MECHANICAL BEHAVIOR OF STEEL REINFORCED RING-BEAM CONNECTIONS OF CONCRETE FILLED STEEL COLUMN AND RC BEAM[J]. Engineering Mechanics, 2013, 30(增刊): 241-247. DOI: 10.6052/j.issn.1000-4750.2012.06.S068

劲性环梁式钢管混凝土节点受力性能研究

A ANALYSIS ON THE MECHANICAL BEHAVIOR OF STEEL REINFORCED RING-BEAM CONNECTIONS OF CONCRETE FILLED STEEL COLUMN AND RC BEAM

  • 摘要: 通过劲性环梁式钢管混凝土节点试件的低周反复荷载试验,研究了节点的受力性能,结果表明:此类节点有效实现了梁铰破坏机制,满足“强柱弱梁、强节点强锚固”的抗震设计要求。运用ABAQUS对节点试件在低周反复荷载作用下的滞回性能进行非线性模拟计算,拓展分析了各部件的应力分布及传递规律,结果表明:节点破坏始于框架梁纵筋屈服,钢管混凝土柱处于弹性阶段,环梁没有产生明显的破坏;塑性铰距离柱边有一定的距离,有效防止梁筋的屈服对节点核心区的影响。

     

    Abstract: Three specimens of steel reinforced ring-beam connections of concrete filled steel columns and reinforced concrete (RC) beams were experimentally studied on the hysteretic behavior. Stress distributions and Load-displacement curves of these specimens were recorded. According to the tests, the mechanism, the ultimate failure mode and the stress patterns were also analyzed. The results show that a good behavior can be obtained by using the joints. And studies also show that a plastic hinge starts from the beam. A finite element analysis model is developed using ABAQUS. The transfer mechanism and internal force distribution of these specimens are analyzed, which may provide a good base both on theory and practice.

     

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