Abstract
AbstractThis chapter numerically investigates the proposed bonded sleeve connection for joining tubular glass fibre reinforced polymer (GFRP) composites and steel members. Experimental results focused on mechanical responses of such specimens using bonded sleeve connections and conventional steel angle connections were introduced in previous chapter. These results are used to set the benchmark for detailed finite element (FE) modelling in this chapter. In the detailed FE analysis, bolt geometry including head, shank and washer were accurately modelled. Paired contact elements were used for simulating the contact and slip behaviour between bolt shanks and holes, washers and steel or GFRP. The pretension force in the bolts was also taken into account by implementing pretension elements. The FE models developed were first validated against the experimental results in terms of failure mode, moment-rotation curves and strain responses. Parametric studies were then undertaken to investigate the structural behaviour of the bonded sleeve connections considering the effects of major design parameters such as endplate thickness, bonding length, number of bolts, etc. It was found that the endplate thickness dominates the initial stiffness and the elastic moment capacity of the bonded sleeve connection and the presence of central one-sided bolts may improve the elastic moment capacity of the bonded sleeve connection.
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