| 摘要 |
The invention relates to a pneumatic plate element ( 1 ) consisting of a hollow body ( 3 ) that can be impinged upon with a pressure medium having overpressure p. Said hollow body is located between two pressure/tension elements ( 2 ) that are connected to one another by their ends and is made of a flexible membrane ( 9 ). When transversal load is exerted on the plate element ( 1 ) placed on two supports ( 17 ) with load force F, the top pressure/tension element ( 2, 7 ) is subjected to pressure and the bottom pressure/tension element ( 2, 8 ) is subjected to tension. Prestressed tension elements ( 4 ) placed at a distance a traverse in channels the hollow body ( 3 ) between the pressure/tension elements ( 2, 8 ). The tension elements ( 4 ) are prestressed by the hollow body ( 3 ) separating the tension elements ( 2 ). The connections ( 6 ) operate as fictitious fixed intermediate supports and stabilize the pressure/tension element ( 2, 7 ) submitted to pressure in order to prevent buckling. Two-dimensional plate elements ( 1 ) can be particularly used for building roofs of lightweight constructions.
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