发明名称 |
DOUBLY PRESTRESSED ROOF-CEILING CONSTRUCTION WITH GRID FLAT-SOFFIT FOR EXTREMELY LARGE SPANS |
摘要 |
The doubly prestressed roof-ceiling construction with grid flat soffit for extremely large-span is prefabricated element intended for assembling roofs of extremely large-span buildings with flat soffit. The construction comprises the grid soffit construction (1) and the upper concrete girder (2) of a modified "T" shaped or of an inverse "V" shaped cross section, interconnecte d by slender steel pipe-rods (3) that stabilize the upper girder (2) against lateral buckling. The empty openings within elements of the horizontal grid (1) are fulfilled with plates (6) wherewith a flat soffit is achieved. The construction is prestressed by the double prestressing. The grid-soffit (1) is prestressed centrically and the upper girder (2) is prestressed by the wedge (5) at the midspan.
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申请公布号 |
CA2463720(A1) |
申请公布日期 |
2003.10.09 |
申请号 |
CA20022463720 |
申请日期 |
2002.11.20 |
申请人 |
MARA-INSTITUT D.O.O. |
发明人 |
SMRCEK, BRANKO;SKENDZIC, MILOVAN |
分类号 |
E04B1/32;E04B7/02;E04C3/22;E04C3/293;E04C3/294;(IPC1-7):E04C3/293;E04B5/10 |
主分类号 |
E04B1/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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