jnpgroup consulting engineers services provided:
- Structural Ddesign
- Civil Design
- Drainage Design
- Piled Foundation Design
- Column Design For Vehicle Impact
- Parapet Support
- Existing Building And Structure Investigation And Analysis
- Collation Of Above And Below Ground Survey Information
- Construction Method Statements
Plant Room
The project was a design and build contract for a new plantroom with associated ductwork and services to serve an existing laboratory. The plantroom was to house new high integrity safe change filter housings for the laboratory at first floor and air handling equipment and pumps on the roof.
The Site
The plantroom was to be constructed between two existing buildings at first floor level as an extension to an existing first floor plantroom within one of the buildings. The first floor was to be used as a plantroom whilst the roof was to be utilised for housing air handling equipment and a pump room. Below the plantroom access to the existing buildings was to be maintained allowing forklift and vehicle access to the building below. The site was very confined and the foundation design was challenging due to adjoining above and below ground structures
The Design
The Client required a simple open room design to provide max floor area at first floor and roof levels with the construction being simple and quick to erect. A steel frame .with precast flooring was considered to be the most suitable solution to allow for maximum off site fabrication and minimum on site disruption.
The steel frame was to be supported on columns from ground to first floor. The position of these were restricted by the existing above and below ground building layouts. Below ground positions were restricted by adjoining building foundations, a pump chamber, buried services and a buried concrete culvert/duct, whilst at ground level there were service ducts along one side of the existing buildings. This required the frame to be designed with varying beam cantilever’s, allowing column positions to avoid the obstructions. The foundations were also affected by these and required a piled foundation solution with pile caps and ground beams which had to be set at varying levels to avoid clashing with services.
The steel frame had to be fabricated to ensure a neat, close fit between the 2 existing buildings, with precast floors built into the beams to maximise headroom.
One end of the plantroom was to be left open whilst work continued to ensure that machinery from the existing plantroonm could be decommissioned and removed whilst, new machinery and filter housings could be installed.
Ductwork from the new plantroom filter housings had to be taken through the roof of the new structure to an existing ventilation stack, requiring new support across the adjoining existing building roof. This required the existing structure to be surveyed and analysed to establish where new steel frame supports could be located, and whether any strengthening works were required.
New look jnpgroupIn pursuit of providing an overall 'One stop shop' service to our clients, jnpgroup set up a...
'One stop shop' engineeringjnpgroup is committed to providing our clients with a comprehensive 'One Stop'...