华侨大学学报（自然科学版）2011，Vol.32Issue(1)：92-95,4.
锈蚀钢筋混凝土梁静承载力性能试验
Experimental Investigation on Static Mechanical Behavior of Concrete Beams with Corroded Reinforcement
摘要
Abstract
Based on the static load test of 7 RC beams, the influence of the shear spanratio steel corrosion rate on the beam load carrying capacity, load-deflection curve, reinforced bars and concrete strain, is analyzed. The test results indicate: the shear span ratio is still the main factor influencing the properties of beams with corroded reinforcement; the steel corrosion rate doesn't change the failure modes, but the serious corrosion can turn the beam from the balanced reinforcement to the under reinforcement. With increasing the steel corrosion rate, the load carrying capacity and stiffness of beams reduce obviously, the ratio of yield strength to ultimate strength increases, the average strain of steel bars and concrete no longer meets the plane assumption. According to the experimental results, the calculation formulae of the flexural load carrying capacity of the beams with 6％～15％ steel corrosion ratio is fitted out.关键词
钢筋混凝土梁/锈蚀率/抗弯承载力/剪跨比Key words
reinforced concrete beams/ corrosion ratio/ flexural load carrying capacity/ shear span ratio分类
建筑与水利引用本文复制引用
曾志兴,宋小雷..锈蚀钢筋混凝土梁静承载力性能试验[J].华侨大学学报（自然科学版）,2011,32(1):92-95,4.基金项目
福建省自然科学基金项目(E0740009) （E0740009）
福建省高等学校新世纪优秀人才支持计划项目(07FJRC05) （07FJRC05）
福建省闽港人才合作项目(24200701) （24200701）
