The dismantling sequence of bridge formwork after steel formwork construction:
1. Before dismantling and adjusting the formwork, check that all bolts have been removed. Adjustment is only permitted after confirming that nothing is missing and the formwork has separated from the concrete.
2. After dismantling, the formwork should be temporarily secured, placed face-to-face with a wide walkway in between for cleaning and applying release agent.
Stone piers. Lightweight scaffolding includes fixed lightweight scaffolding suitable for piers under 6m, and simple mobile scaffolding suitable for piers under 25m; suspended scaffolding can be used for higher piers.
The bridge deck should be free of floating slurry and debris,Water-repellent bonding layer+Before construction, it should be selected according to the actual situation of the bridge deckSandblasting+、Fine millin+ The cement concrete bridge deck is treated in a way to remove floating slurry and debris, and remove the excessive protrusion.
Bridges are exposed to wind, rain, humidity, and pollution for extended periods in natural environments, necessitating high levels of corrosion protection. High-performance anti-corrosion coatings and supporting components are required; a suitable set of components is crucial and directly impacts the protection of the steel structure.
Bridges endure various weather conditions over long periods, such as wind, rain, sun exposure, and snow, and are constantly exposed to humid environments, making them highly susceptible to corrosion and damage. Therefore, the protection requirements for bridge steel structures are extremely stringent. Bridge steel structures, especially large bridges, require coating solutions with high corrosion resistance, weather resistance, environmental friendliness, and excellent decorative properties. Heavy-duty anti-corrosion series long-term protection solutions should be adopted.