Investigating modeling approaches of buckling-restrained braces under cyclic loads

Thermal Behavior of Cylindrical Buckling Restrained Braces at Elevated Temperatures

The primary focus of this investigation was to analyze sequentially coupled nonlinear thermal stress, using a three-dimensional model. It was meant to shed light on the behavior of Buckling Restraint Brace (BRB) elements with circular cross section, at elevated temperature. Such bracing systems were comprised of a cylindrical steel core encased in a strong concrete-filled steel hollow casing. A...

cyclic performance of buckling restrained composite braces composed of selected materials

concentric bracing is one of the most common lateral load resistant systems in building frames, and areapplied to many structures due to their manufacturing simplicity and economics. an important deficiency in thebracing members is their irregular hysteretic loops under cyclic loading. in order to overcome this problem, it isadvised to restrain braces against buckling under compression, since b...

Cyclic Testing of Braces Laterally Restrained by Steel Studs

This paper experimentally investigates the cyclic inelastic performance of concentrically braced frames with and without cold formed steel stud ~CFSS! infills designed to laterally restrain braces and delay their buckling. Specimens have either diagonal tube or solid bar braces with and without CFSS and U brackets providing out-of-plane and in-plane buckling restraint. Behavioral characteristic...

Evaluating the Performance of the Buckling Restrained Braces in Tall Buildings with peripherally braced frames

In recent years, seismic design of structures has been undergoing significant changes due to increasing demand for optimization and minimizing the level of damage and reducing the cost of structural repairs. Development of analytical methods and remarkable improvements of computer performance have been among the factors which influenced the design of structures. A lot of research has been condu...

Monotonicity of Buckling Loads under Symmetrization