Demolition & Structural Alterations

Overview

All structural interventions, modifications and demolition as detailed in Price & Myers, Witherford Watson Mann and Purcell design drawings; Demolition of Strand floor, facade, and other elements as specified by the design engineers; Survey and investigation works required to ensure design and methodology is completed in time within the restraints of the existing structure; Localised noise, dust and vibration monitoring; Clean and re-use of existing brickwork for new wall installs; Formation of new floors including padstones or steel bearing plates, steels, joisting and sheathing; Formation and infills to all pockets formed for new structure install, both for this package and other (i.e. Structural Steelwork), including padstones and steel bearing plates; All mass poured, pre-cast, or reinforced concrete works including the new stair core, stairs, underpinning, pads, ramps, slabs and upstands; All dry packing, grouting, and encasement to steel members, including those installed by Others; Attendance and return visits required for the above installs by Others; External Luxcrete repairs; CCTV and repairs of existing below ground drainage. CCTV of new drainage; Install of items free issued by others (e.g. cast-in plates by Structural Steelwork contractor); Where shown in package split, all new primary and secondary steelwork, connections, metal deck, intumescent coating, padstones, steel bearing plates and dry packing; Alterations to existing structure including formation of new risers and services penetrations, box frames and trimmer steels and timbers; 3rd party review and confirmation of any intumescent and fire stopping installs; Forming of all new lift pits including underpinning, reinforcement and waterproof concrete; Installation of all waterproofing, blinding, insulation and sump (including commissioning) requirements; Facade and party wall retention propping to facilitate demolition Works; Demolition of existing stairwell in the East Wing including all associated temporary works, and infill of new landing; All blockwork and brick walls as shown in package split including windposts; Form new openings including lintels, beams, posts; Re-levelling of existing floor substrates; Removal and excavation of existing screed and slabs, including localised repaires where required; Covering or edge protection install to all voids and openings formed by the Works; Installation of riser flooring systems to all newly formed and existing riser opening; Strengthening of existing beams, including services opening coordination and formation; Removal or containment of any asbestos (e.g. Strand buildings timber flooring), lead, guano and anthrax where required to complete the Works, with appropriate measures in place; Removal, protection and off-site storage of heritage items such as stone beams and flags, grilles, fireplaces and hearths; Removal of existing heritage windows following surveys by Others; Installation of tower crane base including piles and cap; Fire and corrosion protection to steel in-situ application (new only); Temporary & permanent steel bracing; Protection of all existing heritage finishes (where at risk of damage from the works); All scaffolding and crash decks to facilitate the works (e.g. Strand south facade elevation); Propping of existing vaults at Strand; Underslab drainage works and GRP sumps; Surveys of existing structure, looking ahead on programme to avoid last minute discoverables; Install of gulleys, manhole covers and associated below-ground drainage components;