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The objective of the analysis is to conduct a parametric study of BRBs with different amounts of gap (between the core and the BRM) and initial imperfections to investigate the global buckling behavior of the brace.
It was observed from the test that the suggested reinforcing member restrained the flexural buckling of slender brace and induced stable behavior of the brace when compressive force was applied.
Similar(58)
Several studies have shown that the lateral response of concentrically-braced frames is dominated by the inelastic behavior of the bracing members.
As the lateral load resisting system of the structure is CBFs, the behavior of the braces will control the response of the building during earthquakes.
Fatigue and destructive test results indicate that the behaviors of the brace are stable enough to provide self-centering and energy dissipation capabilities, and the loose and severe stress concentration of the outer tube clamps cause the brace to fail.
However, from the stiffness, strength, and cracking control standpoints, the behavior of the X brace is more desirable.
The present paper carried out an investigation into behavior of the eccentrically braced RHS columns, including the buckling load, failure mode, bracing eccentricity, bracing stiffness and the relationships between.
It is shown that the system can exhibit alternate unilateral behavior of the cross-braces.
Results indicate that the current model is able to simulate the overall hysteresis behavior of the WF braces accurately.
To simulate the "elastic-yield-hardening in tension, and buckling-without capacity in compression" behavior of the flexible braces, a simplified model in ABAQUS based on truss elements was developed and validated against previous tests.
The results of the analysis showed that BRM flexural stiffness could significantly affect the global buckling behavior of a brace, regardless of the size of the gap.
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