Steel-concrete combined flying stone prevention structure for existing river-crossing bridge at tunnel portal
The utility model provides a steel-concrete combined flying stone prevention structure for an existing river-crossing bridge at a tunnel portal, and belongs to the technical field of bridge engineering ground disaster protection. The steel-concrete combined anti-flying-stone structure of the existin...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model provides a steel-concrete combined flying stone prevention structure for an existing river-crossing bridge at a tunnel portal, and belongs to the technical field of bridge engineering ground disaster protection. The steel-concrete combined anti-flying-stone structure of the existing river-crossing bridge at the tunnel portal comprises the existing bridge and an anti-flying-stone assembly. The anti-flying-stone assembly comprises newly-built piers, longitudinal main beams, transverse secondary beams and an anti-flying-stone combined top, the newly-built piers are arranged on the two sides of the existing bridge pier, the longitudinal main beams are supported at the top ends of the newly-built piers, the transverse secondary beams are welded to the upper portions of the longitudinal main beams, and the anti-flying-stone combined top is laid on the upper sides of the transverse secondary beams and covers an existing bridge body. The longitudinal main beams and the transverse secondary beams are |
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