Arab Contractors company
19 - 25 Jun 2025
Cable-Stayed Bridge Load Redistribution
Estimated Time: 2–3 min quiz | PDH/CPD: 0.75 hr (incl. review & study) | Difficulty: Advanced
Question:
In a cable-stayed bridge, what happens to the load distribution when one stay cable is damaged or removed?
Explanation:
Cable-stayed bridges exhibit significant load redistribution when cables are damaged. Adjacent cables pick up additional tension while the deck spans farther between support points, creating increased bending moments. This redundancy prevents collapse but requires careful analysis for inspection planning and damage assessment.
Learning Resources:
• "Cable-Supported Bridges" by Gimsing, Chapter 12 - System Redundancy
• Case Study: Stay cable failures and bridge response
• Mola Visualization: Build a deck connected to tower using tension strings (cables). Remove a stay near midspan and observe deck sag and increased tension in adjacent cables.