Abstract
Socket joint between steel pipe of composite pier and steel pile could shorten the term of construction works. A number of experiments were conducted to clarify the ultimate strength of the socket joints. Parameters used in this study were the joint length, specification of steel pile, axial load, concrete strength ...etc. Two types of pier model, Steel-Concrete (SC) and Steel-RC (SRC), are adopted. The experimental results showed that the ultimate capacity obtained from maximum shear stress at annular concrete between inner and outer pipes had a good agreement with CEB-FIP model for shear failure while current design method is applicable to predicting bearing capacity based on concrete compressive strength.
