| 基于数值分析的动水效应对连续刚构桥抗震性能影响 |
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| 引用本文： | 黄雯,加攀星,左光升,张秀成. 基于数值分析的动水效应对连续刚构桥抗震性能影响[J]. 数学的实践与认识, 2021, 0(5): 123-130 |
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| 作者姓名： | 黄雯 加攀星 左光升 张秀成 |
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| 作者单位： | 武汉科技大学城市建设学院;莆田学院土木工程学院;东南沿海工程结构防灾减灾福建省高校工程研究中心 |
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| 基金项目： | 湖北省自然科学基金项目:跨海大桥外壁开孔双壁钢围堰消波机理研究(2018CFB203);东南沿海工程结构防灾减灾福建省高校工程研究中心:波浪作用下跨海桥梁上部结构力学特性研究(2019004)。 |
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| 摘 要： | 为了研究不同水深下,动水效应对连续刚构桥抗震性能的影响,基于一实际工程,利用有限元软件Midas建立全桥模型,采用反应谱数值分析法,并考虑桩土的相互作用,研究了动水效应对连续刚构桥抗震性能的影响.结果表明:考虑动水效应将会减小结构的频率,且高阶频率对动水效应更加敏感;另外,动水效应将会放大结构的地震响应,随着水深的增加...
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| 关 键 词： | 动水效应 连续刚构桥 抗震性能 Midas |
Influence of Hydrodynamic Effect on Seismic Performance of Continuous Rigid Frame Bridge Based on Numerical Analysis |
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| HUANG Wen,JIA Pan-xing,ZUO Guang-sheng,ZHANG Xiu-cheng. Influence of Hydrodynamic Effect on Seismic Performance of Continuous Rigid Frame Bridge Based on Numerical Analysis[J]. Mathematics in Practice and Theory, 2021, 0(5): 123-130 |
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| Authors: | HUANG Wen JIA Pan-xing ZUO Guang-sheng ZHANG Xiu-cheng |
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| Affiliation: | (City College,Wuhan University of Science and Technology,Wuhan 430081,China;Putian College Institute of Civil Engineering,Putian 351100,China;Fujian University Engineering Research Center of Disaster Prevention of Southeast Coastal Engineering Structure,Putian 351100,China) |
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| Abstract: | In order to study the influence of dynamic water effect on the seismic performance of continuous rigid frame bridge under different water depth,based on a practical project,this paper uses the finite element software MIDAS to establish the whole bridge model,adopts the response spectrum analysis method,and considers the pile-soil interaction,and studies the impact of dynamic water effect on the seismic performance of continuous rigid frame bridge.The results show that considering the dynamic water effect will reduce the frequency of the structure,and the higher-order frequency is more sensitive to the dynamic water effect;considering the dynamic water effect will enlarge the seismic response of the structure,and with the increase of the water depth,the increase of the seismic response will be larger.When the water depth is more than 20 m,the dynamic water effect will increase the internal force of the structure by about 10%,the influence of hydrodynamic effect should be considered in seismic design. |
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| Keywords: | dynamic water effect continuous rigid frame bridge seismic performance midas |
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