混凝土梁疲劳与锈蚀损伤评定与预测

Assessment and Prediction for Fatigue and Corrosion Damages of Concrete Girders

对混凝土梁损伤的评定与预测一直是世界各国学者十分关注的问题。多数混凝土梁常见的损伤形式为疲劳和因钢筋锈蚀而造成的损伤。对混凝土梁安全性评定是建立在对这些损伤状态的认识的基础上的 ,因此只有充分有效地评定与预测这些损伤 ,才能对混凝土梁的安全性做出正确合理的估计。引入概率方法评定和预测混凝土梁的损伤是发展趋势 ,研究实用简捷的评定和预测方法也是应该努力的方向之一。

The assessment and prediction for damages of concrete girders have be the great concern among researchers in the world. The common damages on the concrete girders are fatigue and the ones due to reinforcement rust. Assessment of safety of the concrete girders is based on recognition of the damage status. Therefore, only the damages are fully and effectively assessed and predicted can the safety of the girders be correctly and rationally evaluated. To assess and predict the safety with probability method is the development trend. To develop practical and simple assessment and prediction method is orientation that should be tried to follow.