Structural performance of prestressed grouted pile-to-sleeve connections

This paper summarizes the recent development in grouted pile-to-sleeve connections that have been widely used in offshore structures, wind turbine towers and building structures. Parameters affecting the performance of prestressed grouted pile-to-sleeve connection are also discussed according to the test results. Different failure modes with different configurations are compared. The mechanical properties of the connection under axial load, combined loads and cycling load are presented. Relevant design equations proposed by different organizations are also given in this paper. Finally, the possibility of prestressed grouted pile-to-sleeve connection used as a new energy dissipative brace is also presented.