The Phillip and Patricia Frost Museum of Science in Miami features a freestanding 67-foot-diameter dome.
The Peter Courtney Minto Island Bicycle & Pedestrian Bridge is a five-span bridge, with a main span tied-arch of 304.5 feet at the springline chord, and thin cast-in-place, post-tensioned haunched slab approach spans.
nolulu, won the Sustainable Design Award. According to Phil Camp, principal of hi•arch•y llp, the Honolulu-based architect, it is the first LEED-certified affordable rental mixed-use project delivered in the state of Hawaii. Through close collaborations with GPRM Prestress, Camp’s team was able to gain new efficiencies through the use of re- petitive shear panels and by maximizing the use of hollow-core slabs to span three separate units. The precaster and designers also worked together to develop a hybrid precast concrete double-tee with lowered outwings on the flanges, which could structurally engage the double- loaded corridors while providing increased headroom and space for mechanicals and piping. The engineer of record was Allison-Ide Struc- tural Engineering LLC, Honolulu. Judges selected two co-winners for the All-Precast Concrete Solution Award: Roseville City Hall Annex, Roseville, Calif.; and Port of Ju- neau Cruise Ship Terminal Concrete Pontoons, Juneau, Alaska. The new City Hall Annex is the first precast concrete building ever built in the city and the first to be accredited by the U.S. Resiliency Council for its seismic capacity. During design, precast concrete producer Clark Pacific, West Sacramento, Calif., presented value-engineering ideas that removed columns and used double-tees to create 56-foot spans, with hollow-core slab for the remaining 28-foot span. A precast hybrid moment frame for seismic resistance uses precast concrete column and beam elements connected with reinforcing bars and post-tensioning to absorb energy caused by movement of the joint while simultaneously
holding the joint together during an earthquake. Engineer of record was Buehler & Buehler Structural Engineers Inc., Sacramento. To accommodate Panamax and post-Panamax cruise ships, Juneau harbor owners wanted a replacement dock with floating berths that created enough space to accommodate simultaneous berthing of one 1,000-foot-long and one 1,100-foot-long cruise ship. Two all-precast concrete pontoons — measuring 300 feet and 400 feet long — were fabricated simultaneously in the dry-dock of Concrete Technology Corporation’s precast plant in Tacoma, Wash., then towed 1,000 miles to Juneau. Engineer of record was BergerABAM, Federal Way, Wash. The Phillip and Patricia Frost Museum of Science, previously de- scribed, received the Harry H. Edwards Industry Advancement Award. Additional details and photos for each of the award-winning proj- ects, as well as honorable mention winners, are available on the PCI website at https://www.pci.org/PCI/About/Awards/Design_Awards/ Design_Award_Winners?year=18.
Information provided by the Precast/Prestressed Concrete Institute (www.pci.org).
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