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Florida Composting Facility Expansion Includes New Fabric Structures
The Lee County Composting Facility (LCCF) in Felda, Florida, has constructed 3 new tension fabric buildings as part of an expansion project that will double the operation’s production capacity for recycling biosolids and yard waste. The fabric structures were designed, manufactured and installed by Legacy Building Solutions. The LCCF site includes 6 other fabric structures originally constructed in 2009. These older buildings utilize a curved, web truss frame, whereas the new Legacy buildings feature innovative solid, I-beam engineering. This rigid frame, structural steel concept provides several engineering advantages, including the ability to customize building dimensions and provide straight sidewalls that maximize the amount of usable floor space inside the structure. In addition to building construction, Legacy was responsible for engineering the cast-in-place concrete pier foundations. Accounting for challenging conditions with soil and sloping, the design included column heights being adjusted at each footing to ensure the buildings were level. “Legacy’s design was flawless,” said Jerry Pinder, project manager and engineer for Thalle Construction, the general contractor for the facility expansion. “Their responses throughout the process were always immediate. And their installation crew was extremely professional, met all our safety requirements, and did an excellent job.” Engineered to withstand ultimate wind speeds of 240 km/h and meet seismic “A” design codes, the fabric buildings feature PVC-PVDF fired-rated fabric that offers enough translucency to eliminate the need for electric lights inside the structures during daylight hours. All steel members are hot dip galvanized for added corrosion protection. The buildings are also equipped with ceiling fans and feature four Schaefer RV-3000 ridge vents for enhanced ventilation.
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The fabric buildings are used to shelter material from rain and sun for roughly 30 days in the first stage of composting. Each of the structures measures 49 m x 36 m, large enough to accommodate 6 compost windrows piled 2.4 m high and 4.9 m wide, for a total storage capacity of 1,300 m3 of material per building. Equipment and material can easily enter the structure under the end walls, which offer a clearance height of 5,5 m.
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