The corrosion of longitudinal bars in the midspan increases the width of diagonal cracks under service loads.4. 梁跨內的縱筋鏽蝕使梁在使用荷載下的斜裂縫寬度增大。
The relationship between the steel corrosion ratio and parameters in the predeterminate model is also discussed in the paper, and some useful results are obtained. 另外，在同一混凝土構件中，箍筋鏽蝕程度要比縱筋更為嚴重，這就要求我們重視混凝土結構的抗剪耐久性的失效問題。
