Headhouses & Ancillary Buildings (WP09b, 10b, 11b)- Old Oak Common (S4) Station - HS2

Description

WP9b, 10b, 11b - Headhouses and Ancillary Buildings - Structural Steel, Roofing, and Cladding Scope of Works: BBVS is seeking to contract with a multi-disciplinary contractor(s) to deliver this programme of works. We are currently finalising our packaging strategy for this opportunity but anticipate works will be split into two distinct 'geographic' packages - namely 'East' and 'West'. The rational is as follows: The East will consist of 7No. 'low-key architectural'; the West 6No. public facing, which will require a high-quality architectural envelope'. There will be an element of commonality between the deliverables for both packages. An outline scope to help contractors is detailed below (this will be firmed up before ITT issue). Further instructions / guidance will be shared during the PQQ (anticipated July / August 2022). Common: Structural Steelwork (WP9b): • Structural steel frame for East and West Cores (including steel frame, baseplates and HD bolts, vertical and horizontal bracing, all connections, fittings, and bracketry). • Structural steel frame for East and West Portal Buildings (including steel frame, baseplates and HD bolts, vertical and horizontal bracing, and steel supports to steel mesh screens, all connections, fittings, and bracketry). • Structural steel frame over and within ventilation voids (including steel frame, baseplates and HD bolts, steel beam to concrete connections, vertical and horizontal bracing, steel beam supports to open grating coverings. All connections, fittings, and bracketry). • Permanent lifting steel beams for plant replacement (including the lifting beams, all hoists and lifting equipment). All lifting loads will be provided by others. • Designed sizes, locations, and connection loads (including detailed setting out for items above) applies to the steel within this works package. • All required fire protection Common: Design / Construction / Urban Realm Interfaces: • The successful multi-disciplinary contractor will need to coordinate numerous design and construction interfaces with other site contractors (i.e., MEPH / groundworks contractor). This will include roof and façade (and responsibility for all internal RIBA 5 fit out detailing). • Use of ProjectWise (HS2 requirement for 3D - this should not be overlooked). Common: Ancillary Buildings (West Portal/Core, East Portal/Core, Vents), Roof Coverings (WP10b): • Water proofing system (including edge detailing and flashings) • Walkways and water proofing membrane protection (concrete pavers) • Bespoke roof louvre screen (profile anodized aluminium louvre blades). NB: The supporting steel frame is included in WP 9b • Actuated horizontal vent weather louvered system • Bird protection system • Horizontal walkable grating / grille (galvanized); standing seam roof with variable tapered sheets as required • Roof horizontal weather louvres • 'Mansafe' systems (including balustrades & 'latchway system' • Lightning protection system • Green roof to the Western Core Building • Steel balustrades for roof access, maintenance, and protection from fall West: Interfaces: • The roofing coverings for several buildings within the Western Urban realm will require coordinating with the Ancillary Art Commission (under development). West Portal and Core: Ancillary Buildings Cladding (WP11b): • Metal rain screen cladding (weathered steel) including secondary frame • Weathering steel doors & ironmongery to match rain screen finish • Integrated (weathering steel) louvres (including mechanical performance requirements) backing walls (including acoustic louvers) • Roof louvre screen (profile anodized aluminium louvre blades) with supporting steel frame • Integrated LED lighting • Concealed downpipes • Vermin / anti climb mesh to perforations (including bird mitigation meshes and frame) • Façade weathering system to all masonry façade substrate • Western landscape area ventilation shafts (Building No's 2, 3, and 4) Western Realm: Vent Shafts: • Metal rainscreen cladding (weathered steel) including secondary frame • Anodized aluminium rainscreen including secondary frame • Integrated LED lighting East Portal and East Core: • Anodized Aluminium rain screen and louvers • Anodized Aluminium (weathering steel) doors and ironmongery to match rain screen finish • Integrated louvres (including acoustic louvers) • Integrated LED lighting • Concealed downpipes • Vermin / anti climb mesh to perforations, including bird mitigation meshes and frame Eastern Ream Vent Shafts: • Green wall cable trellis system (fixed to concrete wall) cladding system and secondary frame • Access doors and ironmongery • Integrating LED lighting • Secondary frame Anodized Aluminium rain screen and integrated louvers (including mechanical performance requirements) • Vermin / anti climb mesh to perforations (including bird mitigation meshes and frame) Webinar For further information and visuals, please watch our BBVS Webinar recording on this package: https://attendee.gotowebinar.com/recording/2139433447172582671 Please note, all information included within the presentation is indicative and is for information purposes only. Also, please note the procurement slides are subject to revision. Programme Further details on the construction programme will be shared at PQQ (Pre-Qualification Questionnaire) scheduled for Q3 2022. About the buyer's selection process: Respondents to this opportunity should be advised that shortlisted applicants will be invited to tender through an external ERP system. The exact scoring criteria are currently being developed by BBVS, and shortlisted suppliers will be invited to register for the ERP system in due course. What is clear at this stage is that tenders will be scored competitively across a range of criteria, such as, but not limited to: HSEQ, Commercial, Programme, Methodology (particularly with working in a track environment). Respondents to this opportunity should be advised that shortlisted applicants will be invited to tender through an external ERP system. The exact scoring criteria are currently being developed by BBVS, and shortlisted suppliers will be invited to register for the ERP system in due course. What is clear at this stage is that tenders will be scored competitively across a range of criteria, such as, but not limited to: Commercial, Programme, Methodology, HSEQ, Capability and Capacity. In 2018, Balfour Beatty, VINCI and Systra (BBVS) created a strategic alliance to deliver major infrastructure projects for HS2, in particular the Interchange at Old Oak Common. Additional documentation /evidence will be required with your response to this opportunity. (see questions) Your responses are to be emailed to the e-mail address below following the strict naming protocol. the subject title of your e-mail must be: WP20 OOC Station - C4 additional information - <insert Company Name> e-mail: supplychain@bbvsjv.com