带BRB的高层钢框架梁柱节点的抗震性能
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国家自然科学基金项目(51068019、51278236)


Seismic Performance Research on Beam-column Joint of Tall Steel Framed Structure with BRB
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    摘要:

    应用非线性有限元软件ABAQUS对带有BRB和带有普通支撑这2种高层钢框架梁柱节点进行了数值模拟,分析比较了2种支撑对框架梁柱节点的抗震影响,针对带有BRB的梁柱节点,对其进行支撑内芯的屈服强度,节点板的大小、厚度以及节点板上面外加劲肋长度的参数分析。结果表明:BRB在外包钢管和混凝土的约束下具有很好的耗能性能,并且随着支撑内芯屈服强度的降低,节点板尺寸和厚度的增大以及面外加劲肋长度的增加,梁柱节点的滞回曲线更加饱满,拥有更好的抗震性能。

    Abstract:

    Using nonlinear finite element software ABAQUS to analyze and numerically simulate the beam-column joint of high-rise steel framed structure with BRB and with ordinary support. Analyzed and compared the seismic impact on frame joint with the two support. For the beam-column joint with BRB, conduct its parameter analysis about the yield strength of the supporting inner core, the size and thickness of the gusset plate, and the length of the stiffener on the gusset plate. The results showed that the BRB has the good performance of energy-consuming with the constrains come from the wrapped steel and concrete. And with the yield's reduction in strength of the supporting inner core, the increase in the scale and thickness of the gusset plate, as well as the increase in the length of the stiffener on the gusset plate, the hysteresis curve of the beam-column joint display more fuller, which have better seismic performance.

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王秀丽,赵杰.带BRB的高层钢框架梁柱节点的抗震性能[J].土木与环境工程学报(中英文),2013,35(Z1):17-21. Wang Xiuli, Zhao Jie. Seismic Performance Research on Beam-column Joint of Tall Steel Framed Structure with BRB[J]. JOURNAL OF CIVIL AND ENVIRONMENTAL ENGINEERING,2013,35(Z1):17-21.[doi]

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  • 在线发布日期: 2013-07-16
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