RESEARCH ON THE STRESS-STRAIN CURVES OF STRUCTURAL LIGHTWEIGHT AGGREGATE CONCRETE

摘要：

Four different equations of stress-strain curves were compared and analyzed,a new subsection equation was provided according to related test results. The ascending equation is identical with the present Technical Specification for Lightweight Aggregate Concrete Structures (JGJ12 -2006) ,the declining equation is a rational function in which the single constant B can be evaluated from the key points. The coordinates of the key points were expressed in function of the compressive strength of concrete. The subsection equation is simple and can perfectly reflect the declining stress-strain relationships so as to offer reference basis for nonlinear analysis of lightweight concrete structures.

作者: Jianwen Zhang Zhongjun Ma

作者单位: Department of Civil Engineering,Nanyang Institute of Technology,473004,China

会议类型: 国际会议

会议名称: The International Symposium on Innovation & Sustainability of Structures in Civil Engineering(2011年土木工程结构创新与可持续发展国际会议)

会议地点: 厦门

会议语种:英文

页码: 779-783

在线出版日期: 2011-10-28（万方平台首次上网日期，不代表论文的发表时间）