Description

To study the effects of ultra‐high toughness cementitious composite (UHTCC) on the seismic behaviors of local enhancement beam‐column joints under reversed cyclic loading, three specimens were tested and performed with half‐scale interior joints in the finite element software Open System for Earthquake Engineering Simulation (OpenSees) and ANSYS in this chapter. The element “Concrete02” was used to simulate the material properties of UHTCC. The comparison of simulated results and experimental results indicated that displacement‐beam‐column element could be efficiently used to simulate the hysteresis response and the characteristic of energy dissipation of joints. The cementitious composites with ultra‐high toughness could significantly improve the seismic performance of core area and had better ductility. Compared with ANSYS, the OpenSees finite element model was proved that preferably reflected the UHTCC enhanced nonlinear characteristic of frame nodes and effectively analyzed beam‐column joint bearing capacity and seismic behavior.

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