Cool as a Cucumber – Curb Manufacturing

Cool as a Cucumber – Curb Manufacturing

DRE panel drawing

Cool as a Cucumber – Curb Manufacturing

A curb manufacturer, and repeat client, requested engineering services from J3 Engineering Group to review a new bracket design for air conditioning units. This design would tie down mechanical systems for a major grocery store retailer in the south.

Using spreadsheets and specialty software, engineering calculations were provided to verify the bracket and curb designs. Designs needed to be able to withstand both high wind and seismic events and use on multiple units. Special tie downs were engineered to secure each unit.

The design is currently being duplicated for repeated use. Each air conditioning unit held by J3 reviewed brackets can now be installed safely and securely.

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Out of Sight, Out of Mind – Wastewater Tank Optimization

Out of Sight, Out of Mind – Wastewater Tank Optimization

DRE panel drawing

Out of Sight, Out of Mind – Wastewater Tank Optimization

A wastewater treatment company and long-term client, recently contracted J3 Engineering Group to optimize their large wastewater filtration tanks.

J3 was tasked with design optimization that involved two key components. The first involved using a client-provided model to perform a complete structural analysis of the tank. The bearing condition was modeled to realistically represent the permanent conditions that would be expected in the actual anchored and grouted base condition. The second involved optimizing the supporting legs of the tank for effective cost management. This analysis condition was created to properly envelope the stresses in the legs of the tank.

J3 not only met the client’s needs, but also developed new ways to improve the FEA process. The project is complete and will better serve the community by providing cleaner water for years to come.

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American Family Insurance Summerfest 2017

American Family Insurance Summerfest 2017

American Family Insurance temporary structure

American Family Insurance at Summerfest 2017

Look for the American Family Insurance Experience at Summerfest this year. The temporary structure (comprised of 5 separate modules) was engineered by J3 Engineering Group and will feature the ability to design your own photo that reflects your personal dream, relaxing on the rooftop lounge, and a variety of festival necessities.

J3 analyzed the steel components of the promotional structure, which needed to be easy to transport, yet stable. It was engineered without the use of traditional base connections since it was temporary and could not be anchored to the ground. To ensure stability in high winds, J3 engineered a way to tie the individual modules together to act as a whole structure thus making it heavy enough to resist the applied wind loads.

Be sure to stop by and check out our work at the American Family Insurance Experience!

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Madison Capitol Bandshell

Madison Capitol Bandshell

Engineering a Bandshell for the Madison Capitol

For 6 consecutive Wednesdays during this past summer, a Madison tradition continued with Concerts on the Square.  During this annual event, the Wisconsin Chamber Orchestra performed at the Madison capitol where attendees enjoyed music, as well as food from local vendors. The series needed a temporary theater structure specifically, a bandshell. The structure needed to be easily assembled and disassembled daily. It was composed of aluminum custom built shapes supporting audio equipment and contained a square stage and sail-like roof.

The initial design was created by ModTruss, a Fond du Lac based building component supplier who received a request to build the bandshell from a provider of audio and visual equipment. Modeling and design services were required for the structural members and connections for the project. J3 provided engineering calculations to set up and disassemble the structure as well as engineering for components. In addition, J3 coordinated with ModTruss to determine the required materials needed to properly engineer the structure.

The bandshell needed to remain lightweight for transportation and set-up, yet be heavy enough to resist uplift from wind. It could not be attached to the ground due to the temporary placement on the grounds of the capitol building. To resolve this, J3 engineered counterweights that would attach to the corners of the structure. To fit in with the theme of the structure, the counterweights were made to look like audio speakers.

For more information on Concerts on the Square:

http://www.visitmadison.com/includes/calendar-of-events/Concerts-on-the-Square-/35403/2/?sr=1

http://www.wcoconcerts.org/performance-listing/category/concerts-on-the-square

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Wastewater Treatment Platforms

Wastewater Treatment Platforms

Wastewater Equipment

J3 Engineering Group worked with a wastewater treatment equipment supplier to engineer platforms located throughout North America and the Middle East. Since the locations of each platform was diverse, each location needed a different design. J3 ensured proper code requirements were met for each location to provide the most secure design, while keeping costs to a minimum. Given that these platforms were used in the wastewater industry we had to consider loading from piping, liquids, and sand that was used to filter materials.

Since these platforms are exposed to water on an ongoing basis, aluminum was used as the main component material of the platform and other components consisted of stainless steel and FRP. Consideration of interference between piping and other structural components below the platform were necessary as well. In addition, J3 engineered a removable section of the platform for maintenance abilities.

J3’s expertise in engineering various structural materials and familiarity with client requirements were a valuable asset to the project. The platforms and piping are now installed and used by the wastewater treatment facilities.

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