既有结构混凝土受弯构件正截面承载力校核

既有建筑物钢筋混凝土受弯构件,经检测通常存在超筋和少筋的现象,其承载能力是否满足要求,现有的教材中,没有提出明确的校核方法.根据钢筋混凝土受弯构件的实际工作情况和应力-应变关系,提出了其正截面承载力校核的方法,从而为其准确确定加固方案,或在可靠性和安全性评估中准确为其定级,提供了理论依据和计算方法.

Check on the Bearing Capacity of the Bending Component's Normal Section of Existed Structure of Reinforced Concrete

In the teaching materials in existence, there is no definite checking method of the bearing capacity of the bending component in the existed structure of reinforced concrete. Through measurement, reinforced concrete bending member usually has the problem of excessive or inadequate steel. According to the real working condition and the relation of the stress - strain, this paper puts forward the check method of normal section bearing capacity, thus help define the strengthening scheme accurately, or provide theoretical foundation and computing technology for defining the level of it in the assessment of dependability and security.