土木工程学报  2018, Vol. 51 Issue (S2): 98-103, 123    
  结构工程 本期目录 | 过刊浏览 | 高级检索 |
地基加固对沉入式钢圆筒防波堤抗震性能影响研究
宋  波1,3  冯国俊1,3  王  荣2,3
1.北京科技大学,北京100083;2.中国港湾工程有限责任公司,北京100027;
3.强震区轨道交通工程抗震研究北京市国际科技合作基地,北京100083
Study on the influence of foundation reinforcement on the seismic #br# performance for embedded steel cylinder breakwater
Song Bo1,3  Feng Guojun1,3  Wang Rong2,3
1. University of Science and Technology Beijing, Beijing 100083, China;
2. China Harbour Engineering Company Ltd., Beijing 100027, China; 3. Beijing International Cooperation Base
for Science and Technology-Aseismic Research of the Rail Transit Engineering in the Strong Motion Area, Beijing 100083, China
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摘要 为研究地基加固对沉入式钢圆筒防波堤抗震性能的影响,通过数值模拟和振动台试验分析了地基加固前后防波堤的动力响应,并根据国际航运协会《港口结构抗震设计指南》评估了防波堤抗震性能,同时研究了筒外回填砂不同加固范围对防波堤抗震性能的影响。结果表明地基加固后防波堤在Level 1和Level 2时损伤程度均为可服役,满足抗震性能要求;当不同地震波作用于防波堤时,地基加固后防波堤顶部水平残余位移比地基加固前减少约60%以上;通过对防波堤筒外回填砂不同加固范围时的抗震性能进行研究,明确了合理的加固范围,可为相关研究提供参考。
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宋 波 冯国俊 王 荣
关键词 地基加固防波堤钢圆筒抗震性能振动台试验    
Abstract:In order to study on the influence of foundation reinforcement on the seismic performance of embedded steel cylinder breakwater, dynamic response of breakwater was analyzed by numerical simulation and shaking table test before and after foundation reinforcement. Meanwhile, the seismic performance of breakwater was evaluated according to Seismic Design Guidelines for Port Structures (PIANC), and the influence of different reinforcement range on the seismic performance of the breakwater was studied. Results show that damage degree of Level 1 and Level 2 is serviceable for the breakwater after foundation reinforcement, which meet the demands of seismic performance. Residual horizontal displacement at the top of breakwater after foundation reinforcement is reduced over 60% under the different seismic waves. The reasonable reinforcement range is defined through the study on the seismic performance of different reinforcement range for backfill sand outside cylinder, and the reference can be provided for related research.
Key wordsfoundation reinforcement    breakwater    steel cylinder    seismic performance    shaking table test
    
引用本文:   
宋 波 冯国俊 王 荣. 地基加固对沉入式钢圆筒防波堤抗震性能影响研究[J]. 土木工程学报, 2018, 51(S2): 98-103, 123.
Song Bo Feng Guojun Wang Rong. Study on the influence of foundation reinforcement on the seismic #br# performance for embedded steel cylinder breakwater. 土木工程学报, 2018, 51(S2): 98-103, 123.
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