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April 24, 2026Buildings1 citationsOpen Access

Response Characteristics of Large Steel Frame Structures Under Earthquake and Wind Loads

A Case Study on Response Characteristics of Large Steel Frame Support Structures Under the Combined Action of Earthquake and Wind Loads, Considering Shielding Effects

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Authors

JZJian ZhouMZMeng ZhangYWY Q Wang

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Overview

A case study examines wind load impacts on large steel frames, uncovering unique structural responses under earthquake and wind combination, suggesting important design considerations.

Key Points

  • This study aims to investigate the combined effects of earthquakes and wind loads on large steel frame support structures, focusing on drag coefficients influenced by shielding effects.
  • Utilized one-way CFD-to-structure loading analysis to quantify wind drag coefficients.
  • Conducted a systematic parametric analysis to evaluate response behaviors under earthquake-wind load coupling effects.
  • Simulated wind speeds ranged from 10 to 30 m/s to assess drag coefficients across structural members.
  • The first row of structural members showed a stable drag coefficient of approximately 1.25, while subsequent rows exhibited values between 0.6 and 0.8, diminishing along the wind direction.
  • Under low earthquake acceleration (0.05 g), wind-induced amplitude amplification reached 206.3%, stabilizing around 9% as earthquake intensity increased.
  • Findings challenge existing design assumptions regarding uniform drag coefficients in multi-hazard scenarios.

Cite This Study

Zhou et al. (2026) studied this question.

synapsesocial.com/papers/69eb0a2e553a5433e34b46a0https://doi.org/10.3390/buildings16091644
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