About portable weighbridges
Relocatable weighbridge decks are typically constructed of all steel making them light weight and modular for easy transport and relocation. These decks can be positioned on to an existing concrete slab (assuming that the load ratings are acceptable) or a new concrete foundation can be constructed, either to suit an above ground installation or as a pit for an inground installation.
The all-steel deck construction means that these decks expand and contract with the weather which can affect the life span of the load cells. The lighter weight of the decks (as opposed to the heavier steel/concrete decks) means the rocking motion of the weighbridge (when vehicles enter and exit the weighbridge) is much more uninhibited which again can affect the life span of the load cells. For these reasons, all-steel weighbridge decks are recommended for temporary or short-term sites (up to five years).
- Load footings rather than full foundation constructions to minimise costs.
- Steel sub-frames under the load cells to make this a truly relocatable design.
- Steel approaches and ramps which can taken from installation to installation to eliminate concrete approaches and ramps which are permanent to each site.
- Load cells can be fitted with connectors (prior to supply) to assist assembly and disassembly.
- The digital indicator can be mounted in an enclosure that bolts to the side of the deck.
The steel sub-frame is assembled from components, forming a rigid support base for the load cells and deck. For non-trade applications, earth ramps could be constructed to access the deck. Assuming that concrete load footings are used instead of a full concrete slab, the ground beneath the deck (between concrete load footings) must be treated to prevent growth of foliage. If the weighbridge is required to be used for trade purposes, concrete end walls will need to be constructed.