International Journal of Steel Structures

, Volume 18, Issue 4, pp 1125–1138 | Cite as

Computationally Efficient and Accurate Simulation of Cyclic Behavior for Rectangular HSS Braces

  • Chang Seok Lee
  • Min Soo Sung
  • Sang Whan HanEmail author
  • Hyun Woo Jee


During earthquakes, braces behave in complex manners because of the asymmetric response nature of their responses in tension and compression. Hollow structural sections (HSS) have been popularly used for braces due to their sectional efficiency in compression. The purpose of this study is to accurately simulate the cyclic behavior of rectangular HSS braces using a computationally efficient numerical model. A conceptually efficient and simple physical theory model is used as a basis model. To improve the accuracy of the model, cyclic beam growth and buckling load, as well as the incidences of local buckling and brace fracture are estimated using empirical equations obtained from regression analyses using test data on rectangular HSS braces. The accuracy of the proposed model is verified by comparing actual and simulated cyclic curves of brace specimens with various slenderness and width-to-thickness ratios.


Cyclic behavior Brace Numerical model Hollow structural section Local buckling Fracture Regression 



Authors acknowledge the financial supports provided by National Research Foundation of Korea (No. 2017R1A2B3008937).


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Copyright information

© Korean Society of Steel Construction 2018

Authors and Affiliations

  1. 1.Department of Architectural EngineeringHanyang UniversitySeoulKorea
  2. 2.Department of Civil and Environmental EngineeringUniversity of IllinoisUrbanaUSA

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