Though the InQuik system can be simply supported on bearings, a major benefit of pouring the concrete fully on-site is that it allows the construction of a fully integral bridge, where the bridge deck and top of the abutments are cast at the same time to make an integrated concrete structure. This results in a very strong and stable structure, providing greater damage resistance to flooding and earthquake events, and eliminates the need for bearings and tie-downs (and the associated long-term maintenance requirements) 

For an integral bridge, the formwork is removed from the abutment backwall rebate, and the end beams of the deck panels. On-site, additional tie-bars are placed to connect the decks and the abutments.

In addition to the standard InQuik bridge components, we can also provide custom design features at additional cost.

The InQuik deck panels have been designed to satisfy the load rating criteria for both T44/68t B-Double (Austroads, 1992), and SM1600 (AS5100, 2017) design codes.

The 6.1-9.1m spans have the same design for both load ratings, and the 12.1-18.5m spans have a heavier reinforcing design for the SM1600 rating.

The simply-supported deck design is 0.3-0.5t heavier than the integral design.

InQuik prefers to work with standard designs where possible to optimise the design and manufacturing processes. However, bridges do have variable site specific needs, and so we offer non-standard premium features as well. If a project requires any features or dimensions not listed below, we may be able to provide for them in the design as well.

The InQuik abutment length is determined by the width of the bridge. 

The abutment height (to the deck shelf) is determined by the site conditions. 

The size and type of foundation drives the pile openings in the abutment.

The deck formwork is a permanent fixture and remains in place, providing a protective barrier for the concrete against corrosive influences from the environment that can cause concrete degradation. 

There are three options for the deck formwork cladding: Weathering Steel, Magnelis®, and Stainless Steel, which each have different corrosion behaviour. The most suitable cladding component would be selected based on its corrosion performance in each bridges’ specific environment. Other materials would require a special order.

Standard InQuik bridges have a flat side (no kerb) or a castellated kerb. Standard kerb design is 150mm high, with a width of 200mm.

Custom designs requiring a different kerb can be accommodated if required. For multi-span bridges, the positive camber in the deck panel can result in a humped kerb appearance, so we recommend installing a precast kerb for multi-span bridges instead of the prefabricated InQuik kerb.

Appropriate fixings and connections for barriers can also be included in the deck design, with a standard barrier design available for side and top-mounted low performance barriers.

The InQuik system is certified for low, regular and medium performance barriers, and can accommodate a customised connection system as required.

Standard InQuik bridges include low performance Thrie-beam or regular performance TMR-style barrier.

Note: All galvanised components such as barrier posts and Thrie-beams must be stored correctly when they are received on site to prevent the formation of white rust. They need to be kept dry and clean, and positioned to allow any water which does accumulate on them to run off.