摘要
以全直桩梁板式码头单层梁结构和增设底梁的双层梁结构为研究对象,采用振型分解反应谱法,对两者在水平地震作用下的动力响应进行对比分析,研究底梁对结构自振特性、位移响应、桩基及横梁内力的影响。结果表明,增设底梁可有效提高结构刚度,减小结构侧向位移和桩顶弯矩,改善桩基和横梁内力分布,从而提高结构抗震能力。
Based on single-layer beams of all-vertical-piled beam slab structure and the double-layer beam structure added with bottom beams,the comparative analysis on the dynamic responses of the two structures under horizontal seismic load is carried out by using the vibrating decomposition response spectrum method,and the influence of the bottom beams on self-vibration characteristics and displacement response of the structure,internal force of piles and beams are studied,which indicate that the added bottom beams can effectively increase the structural stiffness,reduce lateral displacement of the structure and bending moment of pile top,optimize the distribution of internal force of piles and beams,and then improve seismic performance of the structure.
作者
汪雨
孙克俐
Wang Yu;Sun Keli(Department of Harbor and Coastal Engineering,Tianjin University,Tianjin 300350,China)
出处
《港工技术》
2021年第4期54-57,共4页
Port Engineering Technology
关键词
全直桩码头
底梁
地震响应
对比分析
all-vertical-piled berth
bottom beams
seismic response
comparative analysis
