A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Precast arches form gym roof
Biggest thin shell concrete barrel arches ever precast were hoisted into place recently in Daly City, Calif to form roof for high school gymnasium; units, weighing 20 tons each, are 3 1/2 in. thick, 61 ft long and 15 ft wide with 3 1/2 ft rise; 61-ft length includes 9-ft cantilever overhang, and 52-ft span between precast, 3-hinged supporting bents; each bent spans 90 ft.
Precast arches form gym roof
Biggest thin shell concrete barrel arches ever precast were hoisted into place recently in Daly City, Calif to form roof for high school gymnasium; units, weighing 20 tons each, are 3 1/2 in. thick, 61 ft long and 15 ft wide with 3 1/2 ft rise; 61-ft length includes 9-ft cantilever overhang, and 52-ft span between precast, 3-hinged supporting bents; each bent spans 90 ft.
Precast arches form gym roof
Eng News-Rec
Engineering News-Record ; 158
1957
3 pages
Article (Journal)
English
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