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大型液化天然气储罐桩基抗震设计中桩-土动力交互作用的影响 被引量:2
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作者 王东军 《石油化工设备》 CAS 2023年第3期44-50,共7页
大型液化天然气储罐通常采用群桩基础。国内群桩基础抗震设计中,桩体水平及抗弯承载力计算采用的m法仅考虑了上部结构在地震作用下产生的惯性力与桩体及桩侧土的交互作用。而群桩基础抗震设计相关国际标准针对软土地基,还将桩-土动力交... 大型液化天然气储罐通常采用群桩基础。国内群桩基础抗震设计中,桩体水平及抗弯承载力计算采用的m法仅考虑了上部结构在地震作用下产生的惯性力与桩体及桩侧土的交互作用。而群桩基础抗震设计相关国际标准针对软土地基,还将桩-土动力交互作用的影响纳入了设计考虑。以某220000 m^(3)预应力混凝土全容罐的桩基设计为例,对比分析了m法设计与考虑桩-土动力交互作用设计的桩身内力计算结果,认为在埋深较大的软土地基或存在深层软弱土夹层的地基中,考虑桩-土动力交互作用设计时,桩体下段确实存在较大弯矩和剪力,不应予以忽略。 展开更多
关键词 预应力混凝全容罐 桩-土交互作用 -动力交互作用 基抗震设计
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Comparative Analysis of Seismic Response Characteristics of Pile-Soil-Stnicture Interaction System
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作者 KONG Desen LUAN Maotian WANG Weiming 《Journal of Ocean University of China》 SCIE CAS 2006年第1期1-6,共6页
The study on the earthquake-resistant performance of a pile-soil-structure interaction system is a relatively complicated and primarily important issue in civil engineering practice. In this paper, a computational mod... The study on the earthquake-resistant performance of a pile-soil-structure interaction system is a relatively complicated and primarily important issue in civil engineering practice. In this paper, a computational model and computation procedures for pile-supported structures, which can duly consider the pile-soil interaction effect, arc established by the finite clement method. Numerical implementation is made in the time domain. A simplified approximation for the seismic response analysis of pile-soil-structure systems is briefly presented. Then a comparative study is performed for an engineering example with numerical results computed respectively by the finite clement method and the simplified method. Through comparative analysis, it is shown that the results obtained by the simplified method well agree with those achieved by the finite element method. The numerical results and findings will offer instructive guidelines for earthquake-resistant analysis and design of pile-supported structures. 展开更多
关键词 pile-supported structures pile-soil interaction seismic response analysis finite elements method
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