Beam column joint failure has been linked to the partial or whole collapse of reinforced structures, according information gathered during seismic reconnaissance. Under stress, a single beam only limited impact, but beam-column junction might lead structure. The resulting economic damage and human casualties are substantial. Hence, keeping from coming apart is crucial. Recent earthquakes have c...

in this paper, load and buckling mode of a smart column are presented. the theoretical model is a three-layer piezoelectric composite beam that behaves as an axial actuating mechanism. this actuator consists of an elastic core sandwiched between two piezoelectric active outer layers. the piezoelectric layers are polarized transversely, i.e., the polarization vector is parallel to the applied el...

A mainshock is usually accompanied by a group of ground motions. In many design codes, the effects seismic sequences have been neglected or underestimated. Aftershocks can increase structural damage even cause failure. The current study evaluated behavior rehabilitated and as-built reinforced concrete (RC) structure under real scaled mainshock-aftershocks using nonlinear analysis. Verification ...

The aim of this paper is to present results of testing a full scale reinforced concrete T connection by static loading. The connection is a T connection representing a beam-column connection. The beam and column had a square cross section with a 300 mm dimension. The height of the column was 2.9 m and the clear beam length was 1.4 m. The connection was initially tested to failure. Galvanised st...

In many seismically active regions worldwide, massive reinforced concrete (RC) structures built before the 1970s existed. These older RC buildings, in countries having seismic history, were designed for gravity loads only. Anyway, beam-column connections influence where functions of connection shortage by transport forces like shear, moment, and torsion through beam to column. Also, it could be...

The present study describes the structural performance of a soft-first-story column-beam joint with mechanical anchorage column longitudinal rebar. A new strengthening method using reinforcement is presented to prevent brittle failure in this type structure. series static loading tests was conducted two scaled models representing above verify effectiveness proposed strengthening. test results c...