structure

Weight distribution and structural forces

Displacement

The bridge stays steady due to the massive displacement of the pontoons

1. 1.       Tapered span decking structure supported by four sets of 2 pontoons
2. 2.       Light tension piles support the pontoons from the river bed
3. 3.       The span of the bridge has longitudinal spine support running the length of the two main side sections
4. 4.       The diagonal steel struts yhat provide the main support of the bridge decking structure rest upon the tubular steel framework legs.
5. 5.       This type of loading alleviates any downforce that would act upon the sides of the canal which was conditional of winning the design competition

Walkway decking

The bridge is made up of two main curved sections and a straight middle section that can be hinged upwards to allow for boats to pass. The cantilevered lift is controlled by the harbourmaster. This section is raised by hydrolic rams.

15cm wide aluminium box section plates make up the non slip surfacing

Railings

There is 34 sets of vertical railings that are strung between with stainless steel cable. This is reminiscent of nautical fittings on boats .

Materials used

1.       Bridge decking: box section aluminium extruded

2.       Tubular support structure: splayed tubular steel 10mm thick

3.       Pontoon (floats): rolled steel with end caps (polystyrene foam) aids buoyancy

4.       Railings: verticals are steel plate top hand rails are tubular staircases

5.       Cables:

6.       Span substructure:

7.       Lights: flouresent light tubes contained in polycarbonate boxes