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Simulation Buckling-Restrained Brace (BRB) under cyclic loading Abaqus

In this example we intend to simulate the Buckling-Restrained Brace (BRB) under the cyclic loading in the Abacus software

The Buckling-Restrained Brace (BRB) is composed of: Steel core , Steel tube and Concrete encasement

 In this picture the steel core is distinguished by red color. The steel core absorbs the loads and the energy having been applied to the system and causes the energy to be dissipated

The concrete encasement has been marked out by grey color. The concrete encasement has the task of supporting steel core and prevents from the buckling of the steel core

As you observe , the steel core has been placed inside the concrete-filled steel tube

The interaction between the concrete and steel tube is defined by “Tie Constraint” and when we use the “Tie Constraint” , the parts are merged into one another and are converted into a unique part

There is a gap between concrete encasement and the middle part of steel core

deformation of steel core with scale factor=15
concrete encasement

In this problem the hysteresis diagram has been drawn for the buckling-restrained brace

Duration :48 minutes

The language of the video : English

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