Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method for rapidly reinforcing orthotropic board bridge floor of U-shaped ribs
The invention discloses a construction method for rapidly reinforcing an orthotropic board bridge floor of U-shaped ribs, and belongs to the bridge engineering field. The construction method for rapidly reinforcing the orthotropic board bridge floor of the U-shaped ribs includes: firstly, sealing U-shaped rib cavities in the bridge floor to be reinforced, and drilling a through hole in each U-shaped rib cavity, wherein setting a part of the through holes as grouting holes, and setting the other through holes as exhaust holes; pressing two component expansibility polymer chemical grout into the cavities where the grouting holes are located through the grouting holes, immediately blocking the exhaust holes when the grout overflows from the exhaust holes, and continuing to stabilize pressure for 5min after the grout in a grouting pipe does not flow; opening traffic of the orthotropic board bridge floor 15min after grouting on the reinforced bridge floor is completed. The construction method for rapidly reinforcing the orthotropic board bridge floor of the U-shaped ribs is high in speed and simple to operate, and has little effects on the traffic. After the orthotropic board bridge floor of the U-shaped ribs is reinforced, rigidity of the U-shaped ribs can be improved, local deformation of the orthotropic board bridge floor of the U-shaped ribs under load effects of vehicle wheels is reduced, stress status of welding positions of the U-shaped ribs and a steel bridge deck plate is improved, fatigue cracking risk is reduced, extension of existing fatigue cracks is retarded, and therefore use life of the orthotropic board bridge floor is prolonged.
Construction method for rapidly reinforcing orthotropic board bridge floor of U-shaped ribs
The invention discloses a construction method for rapidly reinforcing an orthotropic board bridge floor of U-shaped ribs, and belongs to the bridge engineering field. The construction method for rapidly reinforcing the orthotropic board bridge floor of the U-shaped ribs includes: firstly, sealing U-shaped rib cavities in the bridge floor to be reinforced, and drilling a through hole in each U-shaped rib cavity, wherein setting a part of the through holes as grouting holes, and setting the other through holes as exhaust holes; pressing two component expansibility polymer chemical grout into the cavities where the grouting holes are located through the grouting holes, immediately blocking the exhaust holes when the grout overflows from the exhaust holes, and continuing to stabilize pressure for 5min after the grout in a grouting pipe does not flow; opening traffic of the orthotropic board bridge floor 15min after grouting on the reinforced bridge floor is completed. The construction method for rapidly reinforcing the orthotropic board bridge floor of the U-shaped ribs is high in speed and simple to operate, and has little effects on the traffic. After the orthotropic board bridge floor of the U-shaped ribs is reinforced, rigidity of the U-shaped ribs can be improved, local deformation of the orthotropic board bridge floor of the U-shaped ribs under load effects of vehicle wheels is reduced, stress status of welding positions of the U-shaped ribs and a steel bridge deck plate is improved, fatigue cracking risk is reduced, extension of existing fatigue cracks is retarded, and therefore use life of the orthotropic board bridge floor is prolonged.
Construction method for rapidly reinforcing orthotropic board bridge floor of U-shaped ribs
WEI JIANDONG (Autor:in)
09.09.2015
Patent
Elektronische Ressource
Englisch
IPC:
E01D
BRIDGES
,
Brücken
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2023
Bending Capacity of Orthotropic Composite Bridge Deck with T-Shaped Steel Ribs
| British Library Conference Proceedings | 2016
Orthotropic UHPC combined bridge deck slab adopting steel ribs and construction method
| Europäisches Patentamt | 2021
Bridge floor reinforcing mesh construction equipment and method
| Europäisches Patentamt | 2024