HOSPITAL CONSTRUCTION
First phase already complete NG Bailey’s appointment for the energy centre scheme followed successful completion of a first phase of infrastructure works across the hospital site, again as principal contractor.
The phase one infrastructure works were completed to programme at the end of June 2017, and included a major upgrade to the electrical infrastructure through the creation of three new substations within existing courtyards around the hospital estate. This was followed by replacement of the high voltage (HV) network cabling and then new low voltage (LV) electrical distribution to re-feed the various switchboards and distribution panels around the site. These works were necessary to address the risk arising from the existing ageing infrastructure, and to provide capacity for future development at the site.
Phase two is the energy centre works, and with NG Bailey undertaking the principal contractor role, this has the responsibility of delivering the associated building works. This includes the superstructure and forming of the major energy centre building, as well as the forming of two new reinforced concrete below-ground walkways to link the new energy centre into the existing hospital infrastructure.
Solar panels
The project scope includes the provision of 250 kW of solar voltaic panels. The first phase of solar panel installation was installed and operational in January 2018, and has generated 12,500 kW hours/ month of green electricity for the Trust. The second phase of the works will see a further 125 kW of solar panels installed on the roof of the energy centre. Once this work is completed, it is anticipated that solar voltaic panels will generate 5-10% of the electricity that the hospital site requires.
The new services infrastructure and energy centre will be more reliable, and will utilise modern and more efficient plant and equipment, reducing the Trust’s energy consumption and carbon footprint. The energy centre, which is nearing completion, should be fully operational early this year.
The benefits of BIM
As mandated by the UK Government in April 2016, Building Information Modelling level 2 maturity was a Trust requirement for the project. To ensure that all the plant and equipment was fully detailed and coordinated with the building structures, NG Bailey’s BIM team amalgamated the different architectural, engineering, and service models into one federated BIM model to develop the design. During the design stage the priority is to ensure that
52 Health Estate Journal February 2019 Offsite solutions
To remove the most labour-intensive works from the hospital site, NG Bailey has manufactured major elements of the internal services off site, at its specialist
‘‘
all the details are accurate and in line with the user’s requirements and proposed installation techniques.
By understanding, for example, the particular bracket dimensions that will be used for a specific pipe, and the overall space that certain items of equipment require for future maintenance access, NG Bailey’s BIM experts were able to ensure that the designs were right first time, thus avoiding any wasteful reworking, and ensuring that all defects were eradicated. In addition, to minimise disruption to the hospital and its neighbours, the BIM model was used to enable major elements of the services infrastructure to be manufactured off site. NT&HS continues to work with NG Bailey to explore the BIM benefits during the operational phase of the building, with the development of an interactive ‘walk-through’ linked to the operation and maintenance manuals.
assembly facilities in Bradford. Offsite solutions include prefabricated plant skids and heavy duty services modules (HDSM) incorporating plant, pipe, fittings, and control equipment, all of which were pressure tested and subject to stringent quality assurance (QA) procedures and client sign-off prior to dispatch to site.
By detailing all the finite services components within a BIM model, the services components can also be easily manufactured off site. The plant skids and pipe spools have essentially provided a ‘kit of parts’ that can be installed by a small on-site team much quicker than via a traditional installation method. Using this off-site process has removed over 5,000 labour hours from site, reducing health and safety risks, and improving the quality of product installed.
Multiple services distribution modules
In addition to the works inside the energy centre, NG Bailey has supplied multiple services distribution modules to link the energy centre primary steam, low
To remove the most labour-intensive works from the hospital site, NG Bailey has manufactured major elements of the internal services off site
The new services infrastructure and energy centre ‘will be more reliable, and will utilise modern and more efficient plant and equipment’, says NG Bailey.
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69
