Fatigue-induced cracks are common in tubular joints of aged offshore platforms, especially outlived structures. These joints can be strengthened using grouted clamps or by other means of repair. The design of grouted clamps to strengthen the cracked joints in axial loads especially tensile loads is limited. Hence, experimental and extensive numerical investigations were conducted on the clamped cracked joints under axial tension. The experiments were conducted using a 1:8 scaled model of a typical prototype joint and numerical simulation has been carried out using nonlinear FE analysis based on the modified RIKS method. The ultimate capacity (unclamped and clamped joints) obtained from the numerical model compares reasonably well with that obtained from experiments (Diff.<14%). Parametric assessment on the ultimate capacity of the connection for ls/d, dg/tg, and ds/ts has been carried out. The ultimate capacity of clamped cracked joint increases by 76% compared to cracked joint for the ls/d of 2–3 investigated. The load-displacement behaviour and ultimate capacity of the clamped and unclamped joints are presented and discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Ultimate capacity of cracked tubular T-joints reinforced with grouted clamp connection in axial tension


    Contributors:

    Published in:

    Ships and Offshore Structures ; 17 , 12 ; 2802-2818


    Publication date :

    2022-12-02


    Size :

    17 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    New Data on the Fatigue and Ultimate Limit State of Grouted Tubular Joints

    Morahan, D. J. / Van Foeken, R. J. / Lalani, M. et al. | British Library Conference Proceedings | 1996


    Ultimate Strength of Tubular Joints

    Jeffrey, N. E. ;Kendrick, A. M. | British Library Conference Proceedings | 1994


    Axial load capacity of V-section band clamp joints

    Shoghi, K. / Barrans, S. / Ramasamy, P. et al. | British Library Conference Proceedings | 2006