The Spantech Construction System – Simple, Strong, Versatile
The Spantech Construction System provides building solutions for numerous applications.
- The system is simple and strong, yet elegant and graceful.
- The Spantech System is based on site-rolled metal building panels of various sizes and thickness.
- Panels are capable of use either flat or as self-supporting curved arches.
- The system can provide unsupported spans of up to forty metres.
Panels interlock to form a continuous structural membrane with minimal screws or bolts. All attendant works – skylights, ventilators, lights, insulation, ducts, ceilings, and so forth – can be incorporated easily and economically.
Acting compositely with reinforced concrete, the Spantech System provides earth covered hardened buildings which are used extensively by Defence agencies.
Whether applied to conventional works, self-supporting arches, hardened buildings, composite storage systems, or permanent formwork, the Spantech system has many uses.
Our team of Engineers, Construction Managers, Site Supervisors and Specialist Site Crew offer their expertise to a diversified range of industries to produce one of the best building systems on today’s market.
Mobile Rollforming Machine
The Spantech Rollforming Machine is the heart of the Spantech Construction System.
The rollforming machines are mobile so they can manufacture the Spantech panels on site. The fully self contained machines are housed in modified shipping containers so they can be transported by road, sea or air. This makes the Spantech Construction System ideal for construction projects in remote locations.
Spantech has a fleet of seven mobile rollforming machines – five 300 Series machines and two larger 370 Series machines.
On-site manufacturing allows Spantech to roll panels in continuous lengths.
Straight panels are formed in the first manufacturing stage. Straight panels are used for end walls, flat roofing and composite formwork. The straight panel is fed into the curving section of the machine to form the distinctive Spantech curved panel.
The 370 Series curved panel can span up to 40 metres wide, so each curved panel may be as long as 46m. The on site manufacturing process therefore requires a relatively flat, large unobstructed area. A car park or sports field that has direct crane access to the building site is ideal. Spantech will help assess a site to ensure that there is a suitable manufacturing space available.
The rollform machine can manufacture straight and curved panels simultaneously. The process is fast. It minimises waste and reduces labour and handling costs.
Panels are prepared on the ground in lifts of either 4 or 5 panels high. Each panel is joined with Spantech’s patented rollformed edge connection, a system that requires no bolts, screws or additional bending. An engaging tool is run around the joint to simply clip the panels together.
Skylights, vents and any other penetrations are cut on the ground to minimise the need to work at height.
Panels are lifted with either an overhead spreader bar or an under-slung spreader bar depending on the layout of the site and type of crane used.
Panels are bolted to cleats pre-welded to the edge beam. Once positioned the lift is engaged to the previous panels. The engaging tool is simply pulled over the roof with a rope. Once engaged, the edge-beam bolts are tightened.
Skylights and vents are installed when the roof is completed.
The result is a continuous metal membrane that forms a self supporting curved roof that can be used for a wide variety of applications.