标题：Stress-Strain Relation Laws for Concrete and Steel Reinforcement Used in Non-Linear Static Analytical Studies of the Moment Resisting Reinforced Concrete (RC) Frame Models
期刊名称：Bulletin of the Polytechnic Institute of Jassy, Constructions, Architechture Section
印刷版ISSN：1224-3884
电子版ISSN：2068-4762
出版年度：2021
卷号：67
期号：1
页码：17-29
DOI：10.2478/bipca-2021-0002
语种：English
出版社：Gheorghe Asachi Technical University of Jassy
摘要：Following the previous analytical studies performed with ATENA software for a series of RC moment resisting frame models, it were used in the pre-processing stage the stress-strain relation laws for concrete and steel reinforcement. These mathematical and graphical relations represent a necessity in the current conditions of numerical analysis and imply a correct knowledge of the deformation mode of the „reinforced concrete” which is a composite material. Thus, it is desired through this research paper the theoretical exposition of: equivalent uniaxial law for concrete, biaxial compressive failure and tensile failure consideration laws for concrete, bilinear with hardening law for steel reinforcement, cycling steel reinforcement model and steel reinforcement bond model. Finally, it will be possible to validate the correctness of the analytical RC frame systems through the experimental results of the optimal RC frame model after seismic platform testing.
关键词：Stress-strain laws;concrete;steel reinforcement;ATENA software;RC frame system
