Our customized ultra-high performance concrete short rib bridge deck net force and fatigue new year testing machine for customers has recently been successfully accepted. Ultra high performance concrete (UHPC) has shown broad application prospects in bridge engineering due to its excellent mechanical properties and durability. As a lightweight structural form, the combination of low ribbed bridge panels with UHPC can further improve structural efficiency. The aim of this study is to evaluate the structural performance of UHPC short rib bridge decks through systematic net force and fatigue performance tests.
1. Research on material properties
Design and Optimization of UHPC Mix Proportion
Basic mechanical performance testing (compressive, tensile, bending strength, etc.)
Analysis of Fiber Distribution Characteristics
2. Experimental design
Test piece design: Design UHPC low rib bridge deck specimens with different rib heights and rib spacing
Static test: graded loading until failure, record load displacement curve
Fatigue testing: designing cyclic loading regimes with different stress levels
3. Test content
Static performance: ultimate bearing capacity, stiffness, crack development mode
Fatigue performance: fatigue life, stiffness degradation law, residual bearing capacity
Damage Mode Analysis
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