What are the uses of comb plate expansion device
The comb plate expansion device has the following main uses:
1. In terms of bridge engineering
Adapting to Bridge Expansion and Deformation: It can effectively adapt to the expansion and deformation of bridges caused by temperature changes, concrete shrinkage and creep, vehicle loads, and other factors. In large-span bridges, temperature changes cause significant changes in the length of
The comb plate expansion device has the following main uses:
1. In terms of bridge engineering
Adapting to Bridge Expansion and Deformation: It can effectively adapt to the expansion and deformation of bridges caused by temperature changes, concrete shrinkage and creep, vehicle loads, and other factors. In large-span bridges, temperature changes cause significant changes in the length of the beam. The comb plate expansion device can meet the expansion and contraction needs of the beam by the relative sliding of the comb teeth, ensuring the stability of the bridge structure.
Ensure driving safety and comfort: With good flatness, there is almost no jumping phenomenon when vehicles pass by, which can effectively reduce vibration and noise, greatly improve driving comfort and safety, reduce the impact load of vehicles on bridges, and extend the service life of bridges and vehicles.
Waterproof protection of bridge structures: Usually, a two-layer chloroprene rubber waterproof layer is installed, and waterproof grease is poured into the expansion gap of the comb shaped steel plate, which can effectively prevent rainwater and debris from infiltrating into the interior of the bridge structure, prevent the steel reinforcement of the bridge structure from rusting, protect the main structure of the bridge, and delay the corrosion of components such as supports.
Suitable for different types of bridges: applicable to various beam structures (such as simply supported beams, continuous beams, cantilever beams, etc.) and new and old bridge reconstruction with different spans. Especially in the replacement of expansion devices on old bridges, the advantages are obvious, as installation can be completed without large-scale structural modifications.
2. In terms of road engineering
Adapting to road expansion: In certain special sections of the road, such as the junction between the road and the bridge, and the expansion joint of a long road, the comb plate expansion device can adapt to the expansion deformation caused by factors such as temperature and foundation settlement of the road, prevent cracks, staggered platforms and other diseases, and maintain the continuity and smoothness of the road.
Convenient for road maintenance: Compared with some other types of expansion devices, the components of comb plate expansion devices are easy to transport and install, without the need for large vehicles or cranes for loading and unloading. Moreover, inspection, maintenance, and elimination of dirt are relatively simple and convenient, which is conducive to daily maintenance and repair work of roads.
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