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吳    強^{1 ,2}

( 1 .  河南工業大學 ，鄭州 450001 ;  2.  河南工大設計研究院有限公司 ，鄭州 450001)

摘   要 ：為評估土－結構相互作用下建筑結構抗震性能的變化， 以某工程為實例，運用有限元建立數值化計算模型；構建地震模擬振動試驗臺 ，對建筑結構在地震激勵下的層間位移角、水平結構受力及地基承受的最大剪力等關鍵響應指標進行模擬與分析。結果表明： 在土 －結構相互作用下， 隨著土壤剛度的增加，建筑結構 從第 1 層第 5 層的層間位移角呈下降趨勢；隨著基礎承載力的增加，建筑結構在低頻、中頻和高頻地震波作 用下的水平位移呈下降趨勢；在橫波、縱波和面波三種條件下，建筑結構基礎的最大剪力隨著地震波速的增加先增加后減小。研究成果為優化建筑結構抗震設計、提升結構在土－結構相互作用下的整體性能提供了重要依據。

關鍵詞：土－結構作用 ；建筑結構 ；數值模型地震波 ；地震模擬振動試驗臺 ；層間位移角

中圖分類號：TU352. 11           

文獻標志碼：A            

文章編號： 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

作者簡介：吳   強  (1970—)  男 ，碩士 ，高級工程師 ，研究方向： 結構工程。

收稿日期：2024 - 12 - 29