convergence
This is a section of the African Rainforest Pavilion at the Toronto Zoo.
More background on the building is below. Thanks for viewing!
Architect: Morden Yolles
Engineers: Douglas Wright, Roly Bergmann.
The structure is supported on cast-in-place concrete tripods from which hollow-section steel beams extend at various angles to the peak of each roof area. Between the main steel members, the hyperbolic paraboloid surfaces are formed by a Triodetic grid system of aluminum tubes and nodes, formed of either equal-sided squares or pentagons, intersected with diagonals which carry the roof load in pure tension. This allowed members to be relatively small and light, helping to keep the overall roof sections as thin as possible. The Triodetic structure is topped by 2″x 6″ cedar joists and tongue-and-groove cedar decking. The original cedar shingle roof surface was recently replaced with copper sheathing.
convergence
This is a section of the African Rainforest Pavilion at the Toronto Zoo.
More background on the building is below. Thanks for viewing!
Architect: Morden Yolles
Engineers: Douglas Wright, Roly Bergmann.
The structure is supported on cast-in-place concrete tripods from which hollow-section steel beams extend at various angles to the peak of each roof area. Between the main steel members, the hyperbolic paraboloid surfaces are formed by a Triodetic grid system of aluminum tubes and nodes, formed of either equal-sided squares or pentagons, intersected with diagonals which carry the roof load in pure tension. This allowed members to be relatively small and light, helping to keep the overall roof sections as thin as possible. The Triodetic structure is topped by 2″x 6″ cedar joists and tongue-and-groove cedar decking. The original cedar shingle roof surface was recently replaced with copper sheathing.