ABSTRACT
Two different types of model piles were used in the shaking table tests. One was made of a stainless steel pipe, 1.50 m in length, with an outer diameter of 101.6 mm, a wall thickness of 3 mm and a flexural rigidity, EI, of 186.05 kN-m2; the other was made of an aluminum alloy pipe, 1.60 m in length, with the same diameter and wall thickness as those of the steel pile and EI = 77.62 kN-m2. The pile was fixed at the bottom of the shear box to simulate the condition of a pile foundation embedded in rock or within a firm soil stratum. A rigid steel adapter for application of lateral force was fixed to the top of the steel pile, while up to 6 disks of mass, 37.10 kg each, were attached to the top of the aluminum pile to simulate various conditions of the superstructure. The model piles were instrumented and installed inside the shear box before preparation of the sand specimen, as shown in Figure 1.
