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Devon Place footbridge

A new footbridge, access ramp and stairs at Newport Railway Station. Comprised of over 15000 individual plated parts with an extremely complex geometry and restrictions on erection.

About the project

Project category

Infrastructure

Project parties

Independent Design House, Prosteel Engineering, Alun Griffiths, CASS Hayward, Newport City Council

Location

Newport, Wales

Images

View from South West above

Main span of footbridge

Corner at ramp and stair from above

Main span infill span from below

Queensway ramp from below

Devon Place footbridge stair

Project in numbers

Tonnage

460 tonne

BIM model contains

6400 bolts

Trimble products used

Tekla Structures, Tekla Model Sharing, Trimble Connect

An extremely complex geometry

New footbridge, ramps, and stairs for Newport Railway Station. A structure made out of plated material, with complex geometry, difficult fabrication techniques, and restrictions on erection.

Independent Design House were engaged by Prosteel Engineering, who were working for the principle contractor, Alun Griffiths, for, and on behalf of, Newport City Council to produce a fabrication model for a new access ramp and footbridge at Newport Station. 

Accurate complex shaped plates

Comprised of over 15000 individual plated parts with an extremely complex geometrical setting out, which included curved plates that were arcing / sloping in two directions, meant a challenge for setting out via traditional 2D drawing methods. By using design reference models supplied by the consulting engineers, CASS Hayward, we were able to accurately detail the geometrical data for the model and easily share models for review .

A big advantage was the ability to use the "lofted plate" option in the Tekla software, for creating accurate complex shaped plates which we were then able to unfold using the “triangles generation” macro coupled with the “unfold surface macro. From this, the IDH could then pass on the NC data to ProSteel, who were then able to work with flat sheets of steel, forming the final shape in the workshop. This would not have been feasible using more conventional options for modelling the bent and curved plates.

The Tekla Structures program dealt extremely easily with the many problems encountered in this challenging project!

 

Important points or benefits:

  • Individual steel parts: Over 15000
  • Bolts: 6400 bolts
  • Tonnage: 460t
  • Custom components were created for the parapet steel

 

UK Tekla Awards

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