ABSTRACT
The plan for the experimental research on the 7-story prefabricated wall structure’s model is shown in Table 1. The repetitive loading of the experimental model was carried out by a pair of steel tie rods exerting an inclined force with the horizontal and vertical components acting at the upper free end of the model. The vertical component stabilized the experimental model of the structure against tilting (exerting compressive stresses in the bed joints and substituting the effect of a vertical load, Figure 2). The repetitive loading was exerted by a pair of ‘‘enerpac RCH-603’’ hydraulic cylinders mounted on inclined steel tie rods. The dynamic load was exerted by the ‘‘TIRA vib’’ electrodynamic exciter, type TV5550/LS, 750 kg in
weight fitted with a mobile weight of 13.2 kg. The exciter’s frequency range was 0-3 kHz; the maximum deflection of the mobile weight was 50.8 mm. The exciter was mounted by means of mandrels onto the floor structure of the topmost story of the model and adjusted to a horizontal oscillation.
