Abstract：To study the seismic behavior of pre-cast shear walls with partial
vertical distributed steel bars spliced by pressed sleeves, quasi-static tests were
performed on 3 pre-cast wall specimens and 1 cast-in-situ wall specimen. Among
them, 2 pre-cast wall specimens and the cast-in-situ wall specmen had partical
vertical distributed steel bars spliced by pressed sleeves and 1 pre-cast wall
specimen had all vertical distributed steel bars spliced by pressed sleeves. The
designed shear span ratio and axial compressive force ratio for the specimens are
1.76 and 0.3, respectively. The stirrups at the boundary elements of the wall
specimens are arranged according to the basic requirement for the strengthen area
of the grade 1 shear wall. The test results indicate that all the wall specimens
fail inflexure mainly. The average secant stiffness degradation rule and energy
dissipation capacity are almost same, respectivelly. The lateral force-displacement
hysteretic loops of all specimens with rotation angle larger than 1/150 have pinch.
The elastic-plastic deformation capacity and the safety reserve of the compressive
strength of the pre-cast wall specimens are less than those of the cast-in-situ
wall specimen. The ultimate rotation angle is larger than 1/70 and the ratio of the
measured strength to the calculated one is larger than 1.1 for the pre-cast wall
specimens. When the rotation angle is not larger than 1/75, the lateral force-
displacement hysteretic loops and skeleton curves of the 3 pre-cast wall specimens
are similar. All the pre-cast wall specimens can satisfy the requirements of
ordinary vertical structural elements for structural anti-earthquake performance
level 1, 4 and 5 under the action of minimal earthquake, mediate earthquake and
abnormal earthquake, respectively, according to the “technical specification for
concrete structures of tall building” JGJ 3—2010.
