Cyclone-prone structure, Custom frame, Multiple Surefoot
Located in northern Western Australia, Karratha has the highest cyclone classification in Australia. This made Surefoot a viable candidate as the footing option for cantilevered roof structures in three skate parks, because of the high capacity for uplift loads that Surefoot offers. The possibility of using concrete was prohibitive because of an existing structure close to the proposed roof and no access to excavation.
The project design consisted of a roof supported by two sets of columns in the back end of the structure. The Surefoot engineering team received the structural design and soil tests for the structure locations, with a maximum uplift force for the supports of 470kN. This prompted the design of a combination frame using multiple Surefoot pile caps to resist the force.
Once the project was awarded to the winning tender, installation by the contractor began with training provided by Surefoot. The predicted installation time of 28 days was halved to only 14 days.
After the Surefoot pile caps were installed, the roof frame was installed within the same week, which was time and cost saving for the council.
The result was impressive, and both the council and contractor were pleased to have used Surefoot.
Marine Environment, Custom Surefoot, High Loadings
The Surefoot system was the preferred footing option in the renovation of a Boating Club in Canadian Bay at Mt Eliza in Australia. The primary concerns of the design and engineering team were the design life of the structure in a marine environment and the structural capacity of Surefoot under loadings of up to 300kN (30 tonnes) of gravity.
The Surefoot engineering and design team visited the site to confirm the scope of works and discuss the design process with the renovation Project Manager. Since the original construction had concrete piles and there was no possibility of removing the old footings, the driven micropiles would need to be set to avoid clashing with the existing structure.
The structural engineer overseeing the design of the framing provided Surefoot with the footing loadings and the layout of the foundations. This information came with the soil report of the location. This report confirmed the presence of clays in the layers beneath the water.
Armed with this latest information, the Surefoot engineering team proceeded with the design. Stainless steel was used for the cap and micropiles, along with custom-made pile caps to suit the specific loading proposed by the project.
As Surefoot was appointed to complete the footing installation, special measures were taken for works to take place in a marine environment. The projected installation time of two months was halved.
The final construction phase went according to plan, and the client was very satisfied with the overall design.
From the very beginning of this project, Surefoot was selected as the footing of choice for the construction of modules for a remote hospital in far north Queensland, Australia.
Because the structure was for public use, the structural loadings were taken into account when designing according to compliance requirements. These loadings were confirmed by the Surefoot engineering team after the Structural Engineer issued the project.
Once the bid for the structure was awarded to the winning tender, the contractor began installation with Surefoot providing training. Once again, the projected installation time was halved, with it being completed in just 14 days.
Thanks to the many benefits that Surefoot offers regarding time and costs, a good number of Modular Building fabricators are choosing this footing option for projects all over Australia. One of them appointed Surefoot for a three-storey modular structure in Melbourne, Australia
After receiving the soil test and the loadings from the structural engineer, the footing products were selected. The SF-150 (previously SF-100) and SF-300, were chosen because of the difference in loadings on all of the footings. The preferred connection was a steel stump to be welded directly into the Surefoot.
This structure is an excellent example of modular technology being utilised to streamline the project delivery process, with the project constructed offsite in only 17 weeks. Delivery and on-site installation were undertaken over the course of a week, followed by eight weeks of on-site work to complete services connections, external works and landscaping.
Once the Surefoot footing system was installed and all the stumps welded, the client proceeded with the modules installation. The entire project was completed in just three weeks.
Custom frame, High bending moments, Restricted Access
When the client was assigned to construct an LED screen inside an existing shed, Surefoot was the first footing option. It was considered the most viable because no heavy machinery was necessary to install the support mast foundations.
Due to the high bending moment in the base of the structure, a frame using four SF 600 were selected. This decision was made after a review of the soil test and the design provided by the structural engineer.
Only one minor cut in the existing slab and a revision in regard to the location of existing services was needed in order to perform the installation.
Once the Surefoot system and the base frame were installed, the mast and screen were able to be erected in no time at all.
The finished structure is visible from a long distance.
S250 3 way, Restricted access, Steep slopes
One of the many benefits that Surefoot offers is the ability to adapt to steep terrain. Our SF 150 comes in three different configurations including; 4-way, 3-way and 2-way. Depending on loadings and soil characteristics, the 4-way SF 150 is usually the preferred option. The flexibility of the 2 and 3-way options also allows for piles to be driven parallel to a boundary or escarpment.
In this particular project, machinery access was limited, and the intended design of deeply bored piers was simply not economical. The homeowner considered Surefoot as a viable foundation option and soon discovered that he had made the right choice.
This particular home design prompted the use of the SF 150 3-way pile cap. The advantage of the 3-way configuration on a sloped site is that two of the piles can be driven across the slope, with the remaining two piles driven into the slope.
Each of the footings was then installed using basic hand tools. With no machinery costs or time wasted waiting for concrete to dry, valuable time and money were saved.
Once the Surefoot footings had been installed, the stumps were fixed with our standard connection brackets and bracing as per the engineer’s design.