Document Type

Steel and timber structures paper

Publication details

Lu, C, Ma, X & Mills, JE 2014, 'Modelling and parametric analysis of bolted connections on retrofitted transmission tower leg members', in ST Smith (ed.), 23rd Australasian Conference on the Mechanics of Structures and Materials (ACMSM23), vol. I, Byron Bay, NSW, 9-12 December, Southern Cross University, Lismore, NSW, pp. 571-576. ISBN: 9780994152008.

Peer Reviewed



This paper examines the load-displacement behaviour of cruciform connections and splice joints on reinforced steel transmission tower legs. The load-displacement behaviour was studied by experimental tests and the results were compared with 3D nonlinear finite element models developed using ABAQUS. The detailed 3D models simulated the bolted connections by using brick elements and considering the clearance in connections. A subsequent parametric analysis showed that friction coefficients, torque values and bolt numbers play an important role in these connections and that adding extra bolts was the most effective approach to improve the load-displacement behaviour of these bolted connections.