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吴    强^{1 ,2}

( 1 .  河南工业大学 ，郑州 450001 ;  2.  河南工大设计研究院有限公司 ，郑州 450001)

摘   要 ：为评估土－结构相互作用下建筑结构抗震性能的变化， 以某工程为实例，运用有限元建立数值化计算模型；构建地震模拟振动试验台 ，对建筑结构在地震激励下的层间位移角、水平结构受力及地基承受的最大剪力等关键响应指标进行模拟与分析。结果表明： 在土 －结构相互作用下， 随着土壤刚度的增加，建筑结构 从第 1 层第 5 层的层间位移角呈下降趋势；随着基础承载力的增加，建筑结构在低频、中频和高频地震波作 用下的水平位移呈下降趋势；在横波、纵波和面波三种条件下，建筑结构基础的最大剪力随着地震波速的增加先增加后减小。研究成果为优化建筑结构抗震设计、提升结构在土－结构相互作用下的整体性能提供了重要依据。

关键词：土－结构作用 ；建筑结构 ；数值模型地震波 ；地震模拟振动试验台 ；层间位移角

中图分类号：TU352. 11           

文献标志码：A            

文章编号： 1005- 8249  (2025)  01- 0113- 06 

DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .01 .021

 

WU Qiang^{1 , 2}

( 1 . Henan University of Technology ,   Zhengzhou 450001 ,   China;

2. Henan University of Technology Design and Research Academy Co. ，Ltd. ，Zhengzhou 450001 ,   China) 

Abstract: To evaluate the changes in seismic performance of building structures under soil-structure interaction, a numerical calculation model was established using the finite element method, taking a specific engineering project as an example. A seismic simulation shaking table was constructed to simulate and analyze key response indicators such as the interlayer displacement angle, horizontal structural forces, and maximum shear force borne by the foundation of the building structure under seismic excitation. The results indicate that under soil-structure interaction, as soil stiffness increases, the interlayer displacement angle of the building structure decreases from the 1st to the 5th floor. Additionally, with the increase in foundation bearing capacity, the horizontal displacement of the building structure exhibits a downward trend under low-frequency, mid-frequency, and high-frequency seismic waves. Under the conditions of transverse waves, longitudinal waves, and surface waves, the maximum shear force at the base of the building structure first increases and then decreases as the seismic wave velocity increases. The research findings provide an important basis for optimizing the seismic design of building structures and enhancing their overall performance under soil-structure interaction.

Key words: soil-structure effect; building structure; numerical model seismic wave; seismic simulation vibration test bed; inter storey displacement angle

作者简介：吴   强  (1970—)  男 ，硕士 ，高级工程师 ，研究方向： 结构工程。

收稿日期：2024 - 12 - 29