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考虑土–结构相互作用的输电塔抗震研究综述
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Abstract:
输电塔作为电力系统中重要的基础设施，其抗震性能对电力系统的稳定性和安全性具有至关重要的作用。传统的输电塔抗震分析通常忽略了土–结构相互作用(Soil–Structure Interaction，简称SSI效应)，这导致对地震响应的预测较为保守。随着研究的深入，越来越多的研究开始考虑这个因素，特别是在强震或复杂地质条件下，土体与结构之间的相互作用对结构的振动响应和稳定性有着显著影响。本文综述了考虑土–结构相互作用的输电塔抗震研究，分析了SSI效应对输电塔抗震性能的影响，并详细介绍了目前关于土–结构相互作用的研究方法、成果并展望了未来的研究方向。
Transmission towers, as significant infrastructure in the power system, play a vital role in the stability and security of the power system. The seismic performance of traditional transmission towers is usually analyzed while ignoring the Soil-Structure Interaction (referred to as the SSI effect), resulting in a relatively conservative prediction of seismic responses. With in-depth research, an increasing number of studies have begun to consider this factor. Particularly under strong earthquakes or complex geological conditions, the interaction between the soil and the structure has a remarkable impact on the vibration response and stability of the structure. This paper reviews the seismic research of transmission towers considering the soil-structure interaction, analyzes the influence of the SSI effect on the seismic performance of transmission towers, and elaborates on the current research methods, achievements regarding the soil-structure interaction, and looks forward to future research directions.
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