Static structures (e.g. – buildings) – With component having discrete prestressing means – Beam – girder – or truss construction
Reexamination Certificate
2008-09-09
2008-09-09
Tran A, Phi Dieu (Department: 3633)
Static structures (e.g., buildings)
With component having discrete prestressing means
Beam, girder, or truss construction
C052S652100, C052S653100, C052S654100, C052S081600, C014S074500
Reexamination Certificate
active
10489978
ABSTRACT:
A doubly prestressed roof-ceiling construction with grid flat soffit for extremely large-span is a prefabricated element intended for assembling roofs of extremely large-span buildings with a flat soffit. The construction includes a grid soffit construction and an upper concrete girder of a modified “T” shape or of an inverse “V”-shaped cross section, interconnected by slender steel pipe-rods that stabilize the upper girder against lateral buckling. The empty openings within elements of the horizontal grid are fulfilled with plates wherewith a flat soffit is achieved. The construction is prestressed by the double prestressing. The grid-soffit is prestressed centrically and the upper girder is prestressed by a wedge at the midspan.
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Skend{hacek over (z)}ić Milovan
{hacek over (S)}mr{hacek over (c)}ek Branko
A Phi Dieu Tran
Jacobson & Holman PLLC
Mara-Institut d.o.o.
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