摘要
圆截面受弯构件是工程结构中常用的一种构件,现行的钢筋混凝土规范只给出了圆截面受弯构件全截面均匀配筋时的计算方法,而对于非均匀配筋时的计算方法并未给出。本文给出了圆截面受弯构件不均匀配筋时的计算公式,并利用大型通用有限元软件ANSYS进行承载力模拟。结果表明,不均匀配筋比均匀配筋能够提高截面承载力,或者说,不均匀配筋比均匀配筋能够节省钢材用量。
The flexural member with round section is common in structural engineering. The formula of the carrying capacity of the normal section of a flexural member with round section when the steel bars are well - distributed is given in Chinese code for design of concrete structures ,but the code doesn＇t give the formula when the steel bars are not well- distributed. Then,this formula was derived in this article, and by the use of ANSYS program,the carrying capacity of the normal section was simulated. The outcome indicated that the carrying capacity is higher when the bars are not well - distributed,it＇ s to say, when the steel bars are not well - distributed,the amount of steel is lower.
出处
《四川建筑科学研究》
北大核心
2006年第6期20-23,共4页
Sichuan Building Science
关键词
钢筋混凝土
受弯构件
正截面承载力
有限元
reinforced concrete
flexural member
carrying capacity of normal
finite element
