EXPERIMENTAL RESEARCH ON DESIGN METHOD FOR FRAME JOINTS OF CONCRETE- FILLED STEEL TUBULAR CORE COLUMNS AND PRESTRESSED CONCRETE BEAMS
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摘要: 通过5个框架节点的试验,研究节点的破坏形态、延性、滞回特性及抗剪切性能。试验结果表明,所提出的钢管混凝土核心柱预应力梁框架节点设计方法是可靠的,该节点形式具有很好的延性和能量耗散能力,由于柱为钢管混凝土核心柱,大大提高了节点核心区的抗剪承载力。Abstract: The failure mode, ductility, hysteretic characteristics and shear property of the joints are studied by the tests for five frame joints of concrete- filled steel tubular core columns and prestressed concrete beams . The experimental results indicate that the construction methods are feas ible and safe, and such joints have good ductility and good energy dissipation. With the concrete- filled steel tube core columns, the shear bearing capacity of core area of joints can be raised greatly.
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