- 摘 要
-
牛荻濤 盧 梅 王慶霖
（西安建筑科技大學 西安 710055）[提要] 銹蝕構(gòu)件的承載力計算是混凝土結(jié)構(gòu)耐久性評估的關鍵性問題。分析了混凝土中鋼筋銹蝕造成的結(jié)構(gòu)性能退化和銹蝕梁的破壞特征，立足于現(xiàn)行規(guī)范的承載力計算公式，提出了銹蝕梁的受彎承載力計算模型，并重點探討了粘結(jié)性能退化對承載力計算的影響，給出了協(xié)同工作系數(shù)的計算公式。最后通過50個銹蝕梁承載力試驗結(jié)果對本文模型進行驗證分析。
[關鍵詞] 銹蝕鋼筋混凝土梁 受彎承載力 協(xié)同工作系數(shù) 試驗Calculation on bearing capacity of corrosive members is the key to the problem of durability assessment of reinforced concrete structures.The structural property deterioration due to steel corrosion in concrete is analyzed.The bearing capacity calculation model is set up based on the current codes. And the influence of bond deterioration to bearing capacity is discussed emphaticaly. At last the formula for calculation of the co-operating factor is given. And the model given is verified by testing 50 corrosive beams.
Keywords: corrosive reinforced concrete beams; bending capacity; co-operating factor; test
