Gold Coast Cultural Precinct – Green Bridge

Bonacci Infrastructure served as the lead permanent and temporary works consultant for the design of the Gold Coast Green Bridge which spans approximately 129 metres from Chevron Island to Evandale Park in Surfers Paradise. The bridge was named a finalist in the Engineers Australia 2020 Australian Engineering Excellence Awards.

Client: City of Gold Coast Council
Location: Gold Coast, Queensland, Australia

Bonacci Infrastructure served as the lead consultant for the design of the Gold Coast Green Bridge which spans approximately 129 metres from Chevron Island to Evandale Park in Surfers Paradise. Both the permanent and temporary works were included in Bonacci Infrastructure’s scope.

 

The bridge comprises a trapezoidal steel girder which is made composite with an in-situ concrete deck. The bridge has a slender arch profile which achieves the required vessel navigation clearances without compromising maximum grades for disabled access. Rigorous dynamic analysis was performed to evaluate the bridge’s response to pedestrian induced excitation. The bridge was also designed to resist a 120 t vessel impact on the bridge piers and a 24 tonne vessel impact on the girder itself.

An innovative solution was adopted for the southern approach ramp which made use of precast concrete shells which were installed and grouted around driven steel liners to create a cantilevering retaining wall. The liners were drilled out and filled with reinforced concrete. The method significantly reduced the extent of earthworks adjacent to Lake Evandale and facilitated a much simpler construction methodology.

 

The Gold Coast Green Bridge was named a finalist in the Engineers Australia 2020 Australian Engineering Excellence Awards.

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