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The Podwall washroom package (54 toilet blocks), which is delivered over 1969m2, has a value of approximately £6m. The main differences in cost, that the services are integrated off site into the walls and cubicles for the Podwall, while in the traditional system the services installation and cubicles must be installed on-site and the cost of the installation of these services on site is higher. The indirect costs in the traditional way do not count as the increased cost of waste and removal, and the increased programme time to install.
In terms of performance and time, Technik flooring system took168hrs per 100m2 for the pedestal and the floor, while in screeded floor take 250hrs per 100m2 for the insulation, screed, and tiling. Tiling is the most labour intensive element of traditional flooring, and drying time for screed increases programme and risk of damage when wet.
In this case study we are looking at the new revolutionary building which was designed to fulfil the needs of Interserve Project Services/North Tees and Hartlepool NHS Foundation Trust. The building will be located at the University Hospital of North Tees. The purpose-designed and built Emergency Assessment Unit has been required in order to reduce waiting times for much demanded emergency treatment. This is something the Government has planned as to drive down waiting times for patients. The amount of beds are needed to be increased at the Stockton site as well as the site needing to be able to provide a service to those needing emergency surgical care, based centrally on location rather than some distance away. The unit has promised to feature up-to-date emergency care and include specialist staff who can deal quickly and efficiently with a high number of patients thus increasing patient turnover.
The solution to these needs was met through a £2.8m Procure 21 project which was awarded to Yorkon manufacturers, based in York, by Interserve Project Services. Off-site construction and the installing of a 42-bed Emergency Assessment Unit was the aim for the new building as its production. The building included 42 steel-framed modules manufactured off-site at York and installed on-site in as little as a few days. Disruption was therefore limited and patients could rest unaware of any commotion. The 1,710m square single storey extension to the pre-existing department was astonishingly and impressively erected in just over six months from beginning to end. The building also can boast a full range of modern well-equipped facilities for any acute medical emergencies.
Features are listed as including four-bed wards, single en-suite bedrooms, an isolation ward, high-dependency beds, consulting rooms, ward manager's office, waiting area, Quiet room, staff changing facilities and rest room and also an interview room.
Incorporated into the design were roof lights to increase any natural light in the centre of the unit and furthermore holds latest technology equipment. The installations of workstations are readily available and can be used at a patient's bedside. This building proudly boasts to be one of the first unit's in the country to offer an electronic information board too.
Looking to the comments of professionals working within the construction of this new high-tech building, we can see the positive influence of off-site technology in providing rapid, quality solutions to much needy clients. The accuracy as well as speed of construction has impressed many working on the project. The patients are the first top benefit thus impacting greatly on society. A faster completion has resulted in an earlier date for increasing the hospital's capacity and implementing the hospital's new care programme. The building has proudly been created free of any defect and furthermore feels and appears like a building created in the traditional on-site method. The impact on the people within the building can be felt as they feel secure and at ease with their impressive new surroundings. After significant planning, the result proves to be pleasing and satisfying to all those involved. Impressive design features are said to include isolation rooms, en-suite bathrooms, no touch taps as well as bespoke window blinds, all that was promised. All in all, a roomy and calm working environment which is properly equipped to looking after those that need it has been established.
4.4 The Steel Construction Institute (SCI) Case Study
The Steel Construction Institute (SCI) Study, which was funded by The Department of Trade and Industries (DTI) with support from Corus Strip Products (UK), is started by visits to six construction sites where oft-site construction technologies were being used for data-gathering. A comparative study had been made and followed by the visits to compare the traditional way of construction to off-site construction methods for a 2-storey school where light steel infill panels were used in off-site method against the traditional method, and a 4-storey light steel residential building where off-site modular construction were used against traditional masonry way. The study results showed that off-site construction is by far reducing the disruption to the local residents
The growing demand for residential housing in cities, towns, and villages of the UK and the scarcity of so-called 'green field' sites, is forcing developers to build on small plots of land within existing residential developments. As housing is built, so the demand for schools, shops, hospitals and leisure also increases.
Construction on confined urban sites presents developers with various challenges including:
The construction of urban sites contained presents developers with a number of challenges, such as; the lack of working and storage space, the absolute necessary to minimize the impact of all aspects of construction on local residents, and the scarcity of skilled labour working in construction sites.
Last Recent experience with modern construction methods showed that these challenges can be met by changing some of the activities of site-intensive products with components manufactured off-site. For example, panels of three two-dimensional and three dimensional modules are supplied in very short time to local conditions and require no storage space on site.
Regarding urban disruption, there is some non official evidence to suggest that the disruption to the local residents and inconvenience caused by construction can be greatly reduced by the use of prefabricated lightweight steel and modular solutions. Such methods do not only transfer much of the construction processes off site, but They also significantly reduces the construction time, thereby limiting the inconvenience Caused by site traffic, deliveries, waste clearance and general construction activities.
One of the greatest opportunities and challenges for the steel sector is the residential market due to the increase awareness of the physical benefits of steel. As often, home builders and developers are looking at things more closely as the project predictability and speed of construction, and areas that can generate financial returns earlier. Construction in steel, which has always been a technique of off-site construction, is the solution.
With its speed of construction, cost-effectiveness, outstanding performance, and unparalleled sustainable qualities, steels off-site construction techniques provides a genuine opportunity for the construction industry to meet growing, and sometimes conflicting demands, in providing affordable housing in today's difficult housing market
By its very nature, steel based off-site construction gives rise to more predictable construction programmes, along with predictable cost, construction quality, programme timing and project handover with faster lead in and onsite project commencement, allowing earlier use and business income return. Ultimately, this can result in the overall construction programme being reduced by up to 60 per cent compared with conventionally constructed buildings.
In conclusion, by widely displaying the impact that new off-site technology can have into the wider world, by showing companies who have profited most successfully from the sector, companies have been able to promote these new methods to the boardroom with more confidence. 96% of all those surveyed held and do hold currently a place within senior management or even as a director. Thus they are responsible for any strategic application in putting off-site technology into the project. This particular survey with its conclusive results, highlights the thirst for contractors to use more and yet more off-site techniques into their buildings largely also to do with its growing appeal and interest. This is not only re-assuring and positive but confidence building for any manufacturers who have invested funds into facilities for production along with developing products and important third party certification of certain products and systems. Finally, work still needs to be carried out further, in order to properly ensure that all the benefits of off-site construction are showed to be available .Further case studies need to be carried out as well as facing the lack of information which is challenging the rise of this potentially great industry. We need to share, we need to spread and we need to display the glowing benefits of the off-site industry to the wider masses involved in construction, thus impacting its growth for the better.