In order to alleviate the heavy on-site splicing workloads and overcome the joint corrosion and other problems for precast concrete piles

the connection joint with resilient clamping was innovatively developed for prestressed concrete square piles.The tensile tests on single resilient clamping connectors and full-scale tensile tests on connection joint test specimens for three kinds of commonly-used square piles were conducted to investigate the tensile bearing capacity

deformation ductility and failure characteristics of the connection joints.The results show that the ultimate tensile bearing capacity of a single resilient clamping connector is larger than 150 kN

and the ultimate tensile bearing capacity

deformation ductility and integrity of the connector can be improved by filling the connector with epoxy resin.For the ultimate tensile bearing capacity of square piles

the experimental results of the connection joint test specimens are all greater than the calculated values of the concrete pile body using the code formula.There are two types of failure modes for the square pile connection joint test specimens:concrete pile body tensile failure and connection joint tensile failure.The established numerical model can well simulate the whole loading process of the connection joint test specimens

and the simulated values of ultimate tensile bearing capacity comparatively agree with the experimental results.