Recent Developments in the Design of Grouted Connections

Abstract

A recently completed major research project on the structural behavior of grouted pile/sleeve connections covered static strength, 'the effect of cyclic movement during grout setting, long-term fatigue, calibration of measured strengths for different quality-control samples, and the investigation of connections removed after 13 years of service in the North Sea. Preliminary data from this project resulted in the issue of revised guidance notes by the U.K. Dept. of Energy and have been recognized in recent amendments to API RP 2A. This paper discusses unpublished test results, the provisions of the latest design codes in relation to the available data, and the implications for design. Results and discussions apply to all types of grouted connections and many types of structures, including pile/sleeve connections for fixed jackets and tension leg platforms and grouted connections used for repair of tubular structures.

Behaviour of grouted sleeve connections at elevated temperatures

“…1) rather than conventional bolted or welded connections has been an innovation in the construction of tubular structures [1][2][3][4][5][6][7]. The connection transmits axial force by shear on the steel and interface.…”