98 This project comprises two adjoining buildings including a 10 storey Crowne Plaza Hotel and 13 storey Apartment Development. The hotel, situated beside the Blanchardstown shopping centre includes 188 bedrooms, as well as 12 meeting rooms, the largest having a room capacity of 450. The adjacent apartment building includes 96 apartments over 13 floors, with a double storey basement car park (295 spaces) serving both the hotel and apartments. This project is a Design & Build contract with McAleer & Rushe being the main contractor and Consarc Design the architect. The client for the apartments is Green Property and Crowne Plaza is the client for the hotel development. Both the hotel and apartments include a two storey basement with a total of 295 parking spaces. The basement car parking extends beyond the footprint of main buildings. The foundations comprise of a 1500 mm deep raft slab supporting the basement and main building, and a 750 mm deep raft slab supporting the areas of two storey basement only. The use of ESA-Prima Win was instrumental in determining the optimum slab depths, as well as modelling bearing pressures and deflections. Reinforced concrete retaining walls enclose the basement. These walls are 250 mm thick and are typically 6 metres high, propped at mid-height by a floor slab. The Basement -1 slab is a 275 mm thick flat slab supported on RC columns and walls. The ground floor slab is divided into two areas. The area of slab outside of the main footprint of the buildings had to be designed for construction traffic so it was therefore necessary to thicken the slab here. A steel frame is also supported on this 450 mm deep slab, so accurate analysis was required to model the transfer of loads into the car park columns below. The apartment building is 13 storeys high and is of reinforced concrete flat slab construction. Floor slabs are typically 275 mm thick supported on RC columns and walls. The construction height between the first and second floor is 5.5 metres with all other floor to floor heights above being 3.0 metres. The higher space between ground and first floors was left to allow for a possible mezzanine floor. It was decided later in the contract to add the mezzanine floor over part of the building. As the main concrete frame had already been erected, the mezzanine floor was constructed using steel slimflor beams and a concrete T-beam and block floor system. The columns supporting slabs were positioned within walls in the apartments above ground, and between car parking spaces in the basement. In order to achieve an efficient structure it was preferable to keep the column positions fixed throughout the entire height of the building. This was not possible in a few cases and RC transfer beams were required to transfer these column loads. These downstand beams are of maximum 1500 mm deep. The concrete Used software: ESA-Prima Win CAE Housing & Buildings 2 Taylor & Boyd Contact Steven Sloan Address 107 Malone Avenue, Belfast BT9 6EQ Northern Ireland, United Kingdom Phone +44 28 9066 7951 Email [email protected] Website www.taylor-boyd.co.uk Over the 45 years of its existence, Taylor & Boyd have been involved in more than 14000 projects throughout Northern Ireland and abroad. With a total staff of 36, it is one of the largest structural engineering consultants in Northern Ireland. The practice strives to provide a quality service meeting client’s requirements, as closely as possible and in order to maintain this level of service the practice became quality assured to BS EN ISO 9001 in December 1993. Projects have ranged from small private schemes to large commercial sector developments. Some recent projects have been individually valued in excess of thirty million pounds. Projects include schools, hospitals, hotels and leisure, supermarkets, large commercial and industrial complexes, offices and residential accommodation. Schemes have encompassed structural steelwork, reinforced concrete, masonry, timber and aluminium ranging from the simple to the highly sophisticated and innovative. Taylor & Boyd have also designed numerous civil engineering works, primarily in site development, roads, main drainage and sports fields and topographical surveys. A wide variety of investigative work and reporting has also been undertaken, including damage claims, conditions of structures and providing advice for the refurbishment of old buildings. Taylor & Boyd have consistently been involved with many large private sector developments, some of which have been on a design and build basis. The economical designs and efficient work methods of the practice were paramount in securing these projects against stiff competition from other Consultants. The practice provides a full consultancy service in structural and civil engineering. It is custom of the practice to liaise with the client and architect from the earliest stage of scheme development, refining its engineering input to meet precisely with the constraints of the project concerned. This close liaison with other members of the design team enables Taylor & Boyd to produce economical, practical and, when called for, innovative designs, constantly aligning resources to meet current project requirements. The practice has several advanced computer systems, each backed by the latest engineering design software. The computer aided draughting facility links up with the design modules to form a full computer aided design and detailing system. Crowne Plaza Hotel and Apartment complex This project comprises two adjoining buildings including a 10-storeyed Crowne Plaza Hotel and 13-storeyed Apartment Development. The hotel, situated beside the Blanchardstown shopping centre includes 188 bedrooms, as well as 12 meeting rooms, the largest having a room capacity of 450. The adjacent apartment building includes 96 apartments over 13 floors, with a double storey basement car park (295 spaces) serving both the hotel and apartments. This project is a Design & Build contract with McAleer & Rushe being the main contractor and Consarc Design, the architect. The client for the apartments is Green Property and Crowne Plaza is the client for the hotel development. Owner: Crowne Plaza & Green Property Architect: Consarc Design Group General Contractor: McAleer & Rushe Ltd Engineering Office: Taylor & Boyd LLP Construction Start: 11/2006 Construction End: 10/2008 Location: Blanchardstown, Dublin, Ireland Project Information Short Description
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