EXPERIMENT RESEARCH ON BENDING REINFORCED CONCRETE MEMBER WITH CORRODED STEEL BARS IN COMPRESSIVE AREA
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摘要: 通过对钢筋混凝土受弯构件受压区钢筋锈蚀过程中构件性能进行的试验研究,试验结果表明,受弯构件受压区的钢筋锈蚀后,对构件性能的影响主要是使截面刚度下降,且主要集中在钢筋开始锈蚀到受压区混凝土发生纵向开裂的时间内,其下降的量值受梁上作用荷载大小的影响,试验中未发现因受压区钢筋锈蚀而破坏的现象。Abstract: This paper research the behavior of reinforced concrete member with corroded steel bar in compressive area by experiment. Experiment results have shown that the main effect is the decrease in cross section stiffness with the corrosion of steel bar, which mainly occurs during the time between the initiation of corrosion and that the compressive area concrete is cracked by corrosion of steel bar, and the amount is affected by the amount of acting load, but no destruction occurs during the corrosion of compressive steel bar.
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Key words:
- durability /
- concrete beam /
- corrosion /
- compressive area
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Mangat P S, Elgarf M S. Flexural Strength of Concrete Beams with Corroding Reinforcement. ACI Structural Journal,1999,96(1):149~158 [2] 吴胜兴.钢筋混凝土结构锈裂损伤研究综述--第十一届全国结构工程学术会议特邀报告.工程力学,2002(增刊):70~88 [3] Roberto Capozucca, Nilde Cerri M. Identification of Damage in Reinforced Concrete Beams subjected to Corrosion. ACI Structural Journal,2000(9~10):902~909 [4] 张喜德,韦树英,彭修宁.钢筋锈蚀对混凝土抗压强度影响的试验研究.工业建筑,2003(3):5~7
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