考虑土-结构相互作用的建筑结构抗震性能分析

Seismic Performance Analysis of Building Structures Considering Soil-structure Interaction

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（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）

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 Qiang1，2

(1.Henan University of Technology， Zhengzhou 45O0O1，China；

Henan University of Technology Design and Research Academy Co.，Ltd.， Zhengzhou 45OoO1，China)

Abstract：To evaluate thechanges inseismic performanceofbuilding structures under soil-structure interaction，anumerical calculation model wasestablishedusing the finiteelement method，takingaspecific enginering projectasanexample.A seismic simulation shaking table wasconstructedtosimulateandanalyzekeyresponseindicatorssuchasthe interlayer displacementangle，horizontal structural forces，andmaximumshearforcebornebythefoundationofthebuilding structure underseismicexcitation.Theresultsindicatethatundersoil-structure interaction，assoil stifness increases，theinterlayer displacementangleof thebuildingstructuredecreasesfromthesttothe5thfloor.Additionaly，withtheincreaseinfoundation bearing capacity，thehorizontal displacementof thebuilding structureexhibitsadownwardtrendunderlow-frequency，midfrequency，and high-frequencyseismicwaves.Undertheconditionsof transverse waves，longitudinal waves，andsurface waves，the maximum shear forceatthe baseofthe building structure first increases and thendecreases as the seismic wave velocityincreases.Theresearch findings provideanimportantbasisforoptimizingtheseismicdesignofbuilding structuresand enhancing their overall performance under soil- structure interaction.

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

建筑结构

0 引言

地震作用下，建筑结构的响应、安全及稳定性深受土-结构相互作用的影响。（剩余12745字）