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Method for pre-stressing a steel structure, and a steel structure pre-stressed thereby
Method for pre-stressing a steel structure, and a steel structure pre-stressed thereby
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机译:预应力钢结构的方法以及由此预应力的钢结构
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摘要
According to the method, at least one carbon fiber-reinforced polymer band is joined to the steel structure at the end regions thereof, capable of transferring tensile forces. Subsequently, at least one lifting element (7) disposed between the carbon fiber-reinforced polymer band (4) and the steel girder (3) to be reinforced in a region between these end anchorages (5), is extended substantially perpendicular to the carbon fiber-reinforced polymer band (4). So, a tensile force stress is generated between the end regions of the carbon fiber-reinforced polymer band (4). Then, a steel girder treated in such a manner includes at least one carbon fiber-reinforced polymer band, which is each joined to the steel structure (1) at the end regions thereof, capable of transferring tensile forces. In the region between these end regions, a lifting element (7) is disposed between the carbon fiber-reinforced polymer band (4) and the steel girder (3) to be reinforced, by means of which the carbon fiber-reinforced polymer band (4) is subjected to tensile stress by lifting away from the steel girder (3). The tensile force is transferred to the steel girder (3) via the anchoring elements (5).
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