| 考虑墩柱非线性的大跨桥梁抗震特性分析 |
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| 引用本文： | 裴辉腾,尹华杰,吴飞,殷妮芳.考虑墩柱非线性的大跨桥梁抗震特性分析[J].交通科技,2020(3):16-19. |
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| 作者姓名： | 裴辉腾 尹华杰 吴飞 殷妮芳 |
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| 作者单位： | 江西省交通设计研究院有限责任公司;江西省交通建设工程质量监督管理局;江西省交通工程集团有限公司;江西公路开发有限责任公司 |
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| 摘 要： | 以某山区薄壁空心墩连续刚构桥为例,运用非线性地震时程法分析了桥梁下部结构的抗震性能,总结出大跨高墩连续刚构桥抗震设计建议。提出在后续桥梁挡块设计中,应增大其高宽比至2.5左右,同时设置横向封闭箍筋,并将箍筋伸入盖梁,伸入长度至少为1倍挡块厚度。
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| 关 键 词： | 非线性分析 抗震特性 大跨连续刚构桥 薄壁空心墩 防落梁系统 |
Analysis on Seismic Characteristics of Long-span Bridge Considering Piercolumn Nonlinearity |
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| PEI Huiteng,YIN Huajie,WU Fei,YIN Nifang.Analysis on Seismic Characteristics of Long-span Bridge Considering Piercolumn Nonlinearity[J].Transportation Science & Technology,2020(3):16-19. |
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| Authors: | PEI Huiteng YIN Huajie WU Fei YIN Nifang |
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| Institution: | (Communications Design Research Institute Co., Ltd., Nanchang 330022, China;Jiangxi Province traffic construction engineering quality supervision administration, Nanchang 330008, China;Jiangxi Transportation Engineering Group Co., Ltd., Nanchang 330022, China;Jiangxi Highway Development Co., Ltd., Nanchang 330038, China) |
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| Abstract: | Taking a continuous rigid frame bridge with thin-walled hollow pier in Sichuan Province mountain area as an example,the seismic performance of the substructure is emphatically analyzed with seismic time-history method,and some reasonable suggestions about the seismic design of long-span high-pier continuous rigid frame bridge are proposed.It is suggested that in the subsequent design of bridge blocks,the aspect ratio should be increased to about 2.5,and the lateral closed stirrup should be set,and the stirrup should be extended into the cover beam,and the extension length should be at least one times the thickness of the block. |
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| Keywords: | nonlinear analysis seismic characteristics long-spanrigid frame bridge thin-walled hollow pier falling-off prevention system |
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