一种增强桥墩塑性铰区防灾韧性的钢混组合构造
By designing a steel-concrete composite structure in the plastic hinge zone of the bridge pier, and using ultra-high performance concrete and steel pipes to form a hollow steel pipe constraint structure, the problem of brittle failure in the plastic hinge zone of the bridge pier was solved, achieving high load-bearing capacity and easy repair for disaster prevention and toughness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中建新锐建设有限公司
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-17
AI Technical Summary
The plastic hinge zone of bridge piers is prone to brittle failure under strong earthquakes or rockfall impacts. Traditional reinforcement methods have problems such as interface delamination and insufficient material durability, making it difficult to form a structure with high seismic and impact resistance performance in the early stages of design and construction.
The structure adopts a steel-concrete composite structure, including reinforced concrete piers, steel-concrete column structure, steel wall panels and ribbed concrete structure. It uses ultra-high performance concrete and steel pipes to form a hollow rectangular steel pipe confined concrete structure. The steel wall panels and steel-concrete columns are welded together to form a closed section, which works together to bear external loads.
It enhances the load-bearing capacity and ease of repair of the plastic hinge zone of the bridge pier, and utilizes the high strength and high toughness of ultra-high performance concrete and steel pipe to jointly resist earthquake or impact loads, thereby improving the disaster resistance of the bridge pier.
Smart Images
Figure CN224514039U_ABST