Influence of structure on the aseismic stability and dynamic responses of liquefiable soil

Dou Pengfei; Xu Chengshun; Du XiuliChen Su

首页> 外文期刊>Bulletin of earthquake engineering >Influence of structure on the aseismic stability and dynamic responses of liquefiable soil

【24h】

Influence of structure on the aseismic stability and dynamic responses of liquefiable soil

机译：Influence of structure on the aseismic stability and dynamic responses of liquefiable soil

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

In previous major earthquakes, the damage and collapse of structures located in liquefied field which caused by site failure a common occurrence, and the problem of assessment of liquefaction possibility and discussion on the seismic response and stability of liquefied site is still issue of common concern in geotechnical earthquake engineering. To study the influence of the existence of structure on the seismic responses and stability of liquefiable sites, two groups of shaking table tests on liquefiable non-free field (with structure) and a free field (without structure) are performed. It can be summarized from the experimental results as following. The natural frequency of non-free field is larger and the damping ratio is smaller than that of a free field. For the weak seismic loading condition, the dynamic response of sites shows similar rules and trend. For the strong ground motion condition, soils in both experiments all liquefied obviously and the depth of liquefaction soil in the free field is significantly greater than that in the non-free field, besides, porewater pressure in the non-free field accumulated relately slow and the dissipated quickly from analysis of porewater pressure ratios in both experiments. The amplitudes of lateral displacements and acceleration of soil in the non-free field are obviously smaller than that in the free field caused by the effect of presence of the structure. In a word, the presence of structures will lead to the increase of site stiffness, site more difficult to liquefy, and the seismic stability of the non-free site is higher than that of the free site due to soil-structure interaction.

著录项

来源
《Bulletin of earthquake engineering》 |2022年第1期|55-76|共22页
作者
Dou Pengfei; Xu Chengshun; Du XiuliChen Su;
展开▼
作者单位

Beijing Univ Technol;

China Earthquake Adm;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类地震学;
关键词
Free field; Non-free field; Shaking table tests; Dynamic response; Porewater pressure; Seismic stability; LIQUEFACTION RESISTANCE; MOTION DURATION; CONCRETE PILE; LATERAL FLOW; IZMIT BAY; MODEL; PLASTICITY; FAILURE; DAMAGE;

Influence of structure on the aseismic stability and dynamic responses of liquefiable soil

摘要

著录项

相关主题

期刊订阅