Modeling of the reinforced concrete structure performance at joint influence of mechanical and chemical loads

7th International Symposium Actual Problems of Computational Simulation in Civil Engineering

土木建筑工程;计算机科学

Selyaev, V.P.^1 ; Selyaev, P.V.^1 ; Sorokin, E.V.^1 ; Kechutkina, E.L.^1

Ogarev N.P. Mordovian State University (Saransk), Sovetskaya street 24, Saransk

430000, Russia^1

关键词: Aggressive medium;    Different stages;    Estimated parameter;    Geometric equations;    Kinetic equations;    Physical equations;    Sorption equations;    Static equations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/456/1/012060/pdf
DOI  :  10.1088/1757-899X/456/1/012060

来源: IOP

【 摘 要 】

The present work offers formation principles of reinforced concrete structures design models that are used in the environment with joint influence of mechanical loads and chemically aggressive media. The model is proposed to be described with an equations system of mechanics and physics and chemical kinetics which includes: static equations (L. Navier); geometric equations (A. Cauchy); physical equations (R. Hooke, etc.); kinetic equations of aggressive medium transfer (A. Fick); kinetic equation of substances interaction (K. Guldberg - P. Waage); sorption equation (I. Langmuir). Practical methods for assessing the kinetics of estimated parameters change were developed. Methods for assessing a service life of reinforced concrete structures used in the joint conditions influence of mechanical loads and chemically aggressive media allowing predicting the service life of a structure at different stages - from design to physical wear - were developed.