Constitutive Models for Design of Sustainable Concrete Structures

2nd International Conference on Sustainable Development in Civil, Urban and Transportation Engineering

地球科学;运输工程;经济学

Brozovsky, J.^1 ; Cajka, R.^1 ; Koktan, J.^1

Faculty of Civil Engineering, VSB-Technical University of Ostrava, Ludvika Podeste 1875/17, Ostrava - Poruba

708 33, Czech Republic^1

关键词: Elastic-plastic Material;    Engineering practices;    Hardening model;    Linear elastic model;    Material modeling;    Smeared crack model;    Sustainable concretes;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/143/1/012036/pdf
DOI  :  10.1088/1755-1315/143/1/012036

来源: IOP

【 摘 要 】

The paper deals with numerical models of reinforced concrete which are expected to be useful to enhance design of sustainable reinforced concrete structures. That is, the models which can deliver higher precision of results than the linear elastic models but which are still feasible for engineering practice. Such models can be based on an elastic-plastic material. The paper discusses properties of such models. A material model based of the Chen criteria and the Ohtani hardening model for concrete was selected for further development. There is also given a comparison of behaviour of such model with behaviour of a more complex smeared crack model which is based on principles of fracture mechanics.