| 公民科学素质视角下的防震减灾科普研究——以日本和美国为例 |
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| 引用本文： | 陆文静,郭浩然,孙春仙,夏文君.公民科学素质视角下的防震减灾科普研究——以日本和美国为例[J].震灾防御技术,2019,14(4):882-889. |
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| 作者姓名： | 陆文静 郭浩然 孙春仙 夏文君 |
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| 作者单位： | 江苏省地震局, 南京 210014 |
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| 基金项目： | 国家自然科学基金资助项目（51808376）；中国博士后科学基金资助项目（2019M651076）；山西省高等学校科技创新资助项目（20192L0276）；江西省青年科学基金资助项目（20192BAB216032） |
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| 摘 要： | 防震减灾科普教育是提升公民防震减灾科学素质的重要途经。日本和美国是在防震减灾科普教育方面走在世界前列的国家。本文通过研究日本和美国关于公民防震减灾科学素质建设文献资料，分类归纳日本和美国公民防震减灾科学素质建设的历史背景、发展特点及主要路径，由此对我国公民防震减灾科学素质建设提出思考和建议。
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| 关 键 词： | 公民科学素质 防震减灾 科普 |
| 收稿时间： | 2019/3/27 0:00:00 |
Seismic Vulnerability Analysis of Small and Medium Span Girder Bridges Considering the Sliding of Bearing and Shear Key Damage |
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| Lu Wenjing,Guo Haoran,Sun Chunxian and Xia Wenjun.Seismic Vulnerability Analysis of Small and Medium Span Girder Bridges Considering the Sliding of Bearing and Shear Key Damage[J].Technology for Earthquake Disaster Prevention,2019,14(4):882-889. |
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| Authors: | Lu Wenjing Guo Haoran Sun Chunxian and Xia Wenjun |
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| Institution: | Jiangsu Earthquake Agency, Nanjing 210014, China |
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| Abstract: | From the perspective of seismic designs of plate type elastomeric pad bearings and concrete shear key, a typical three-span prestressed concrete continuous girder bridge was taken as a case study. Combined with the probabilistic seismic demand analysis and the limit failure states of critical members such as piers and bearings, this study developed the vulnerability curves of the bridges with different models of bearings and shear keys and studies the Vulnerability characteristics of the small and medium-span bridge considering the slip effect of the bearing and the shear key damage. The results show that the seismic damage probability of the pier is obviously increased without considering the slip effect of bearings and the shear key damage, and the probability of the bearing damage is underestimated; the system vulnerability is significantly affected by the damage of bearings, and a reasonable limit device is needed for the bearing; the sliding effect of bearings and shear key damages should be considered in the seismic vulnerability analysis of small and medium span girder bridges. |
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| Keywords: | Bridge engineering Seismic vulnerability Sliding effect of bearing Shear key damage Finite element analysis |
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