摘要
为了分析不同削弱参数对翼缘开孔削弱型节点抗震性能的影响,应用ANSYS有限元软件,将不同削弱参数的翼缘开孔削弱型节点和未开孔普通节点进行对比分析,研究了翼缘开孔削弱型节点在不同削弱参数下的骨架曲线、极限承载力、延性和耗能能力。结果表明:相比未开孔普通节点,削弱参数在合理范围内取值,可以使翼缘开孔削弱型节点的耗能能力有较大提高,使抗震性能得到明显改善,同时保证极限承载力和延性只有较小程度的下降。
In order to analyze the effects of different weakening parameters on the seismic behavior of reduced beamto-column joint with beam flange openings,the beam-to-column joints with beam flange openings were compared with the common joints without openings by setting different paramenters. Meanwhile,the paper analyzed the skeleton curves,ultimate bearing capacity,ductility and energy dissipation capability of the reduced joints with beam flange openings with various paraments. The results showed that comparing with common joints without openings,choosing reasonable weakening parameters could greatly improve energy dissipation capability of the beam-to-column joint with beam flange openings,and apparently improve the seismic behavior so as to ensure there was a little decrease of ultimate bearing capacity and ductility.
引文
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