Tenders Are Invited For Core Valley Lines - Rhiwbina Station Platform Sub-Structure

The Rhiwbina Station Platform Sub-Structure Is Located At Cry 1M 78Ch, Os Map Reference St 158809. Rhiwbina Station Platform Sub-Structure Is A Single Platform Station With A Single Track. The Platform Construction Includes Precast Reinforced Concrete Units For 34 No. Bays. Access Is Achieved From The Eastern End (L/M) Via An Access Ramp. A Waiting Area Comprises 3 No. Bays Adjacent To Bay No. 6, 7 And 8 From L/M End And Is Located To The D/S Of The Platform. The Platform Articulation Includes Two Precast Reinforced Concrete Slabs Per Bay. The Slabs Are In-Turn Supported By Reinforced Concrete Portal Frames On Combined Footings. The Portal Frames Are Braced By H-Shaped Reinforced Concrete Cross Members At Either End Of The Portal Frames. The Waiting Area Deck Slab Comprises Transverse Filler Beams Supported On 3 Pairs Of Longitudinal Steel Beams (Rails). Longitudinal Beams Are Supported On Vertical Supports. A Condition Assessment Report Identified Spalling With Exposed Corroded Reinforcement, Fractures With Rust Staining And Significant Section Loss To Fixings. The Works Comprise Of; The Repair Of Defects In Sub-Structure And Slabs, Installation Of Debris Screens, And Platform Surfacing And Strengthening. Aiw Seek To Procure A Build Only Subcontractor Under And Nec4 Option A Contract To Undertake The Repair Works