Test on seismic performance of precast shear wall with reinforcements grouted in holes and spliced indirectly in horizontal connections

Abstract:

To comprehensively evaluate the seismic performance of precast concrete shear wall with vertical reinforcements grouted in holes and spliced indirectly in horizontal connections, two fabricated and a cast-in-place concrete shear wall with full scale specimens were tested under low cyclic loading. The test results show that the concrete interior shear wall specimens (JN) is basically the same as the cast-in-place specimen (XJ) in failure modes, but the concrete exterior shear wall specimen wall (JW) is different with the XJ. The hysteresis curve of the specimen is full, the trend of the skeleton curve is basically the same and the capacity of the energy dissipation is close. The ultimate displacement angle of each specimen is 1/56-1/49 and the displacement ductility factor are 4. The initial stiffness of JW, JN are lower than the XJ, and the force behavior is improved in exterior wall specimens (JW) with the setting position of horizontal connections moved up.