One, Buoyant Collision Prevention Device

1. Structure compositionThe core is composed of a fiber-reinforced shell, internal energy-dissipating lattice, closed-cell energy-absorbing material, and damping elements, connected in sections with mortise and tenon or bolt joints, with each section weighing less than 10 tons.
2. Core FeaturesWith its buoyancy, it floats along the pier pylon axis with water level, always matching the ship collision height; the internal damping element prevents long-term abrasion fatigue caused by water flow, with convenient transportation, installation, and easy replacement after damage.
3. Protection Effect and Application ScenariosDuring impact, energy is progressively absorbed through shell deformation and material crush, reducing 25% to 35% of the impact force. Simultaneously, the rounded structure guides the vessel's转向, providing protection for both the bridge and the vessel in both directions, and is suitable for protecting bridge piers in navigable waterways.

II. Fixed Collision Protection Device

1. Structural compositionBased on steel or composite materials, internally filled with high-performance closed-cell energy-absorbing material. Some parts feature steel-coated composite structures for enhanced rigidity, and are secured to specific locations using bolts or anchored reinforcement.
2. Core FeaturesSturdy installation with no risk of displacement, made of high-strength materials to withstand water and harsh weather erosion, durable with low maintenance requirements, and customizable for specific scenarios.
3. Protection Effect and Applicable ScenariosSuited for stable water levels or key protection areas; e.g., road bridge pier protection can reduce the impact force of vehicles by over 60%, ideal for long-term fixed point protection.

Section 3: Collision Protection Equipment with Steel Composite Materials

1. Structure compositionAt the core, "steel base + composite coating" is featured, including steel-clad composite shells, reinforced webs, closed-cell energy-absorbing cores, and damping elements, with UV absorbers added to the surface.
2. Core FeaturesThe steel substrate ensures rigidity, while the outer composite material offers corrosion resistance, weather resistance, and impact resistance; weighing only 1/4 of pure steel equipment, it supports either floating or fixed installation, modular connections for easy assembly and disassembly, and requires no painting or maintenance.
3. Protective Effect and Applicable ScenariosThrough shell deformation, core material crush, and damping buffering, energy is gradually dissipated during impact. The fiber-reinforced structure can distribute loads and recover deformation, suitable for long-term protection in complex aquatic environments.