Analytical Computational Models for Relationship between Ultimate Bending Moment of Concrete Segments and Axial Force

Autor:	Zhi Yun Wang, Shou Ju Li
Rok vydání:	2020
Předmět:	Computational model Computer simulation Mechanics of Materials business.industry Mechanical Engineering Bending moment General Materials Science Bearing capacity Structural engineering Axial force business Geology
Zdroj:	Key Engineering Materials. 853:177-181
ISSN:	1662-9795
DOI:	10.4028/www.scientific.net/kem.853.177
Popis:	Concrete segments are widely used to support soil and water loadings in shield-excavated tunnels. Concrete segments burden simultaneously to the loadings of bending moments and axial forces. Based on plane deformation assumption of material mechanics, in which plane section before bending remains plane after bending, ultimate bending moment model is proposed to compute ultimate bearing capacity of concrete segments. Ultimate bending moments of concrete segments computed by analytical models agree well with numerical simulation results by FEM. The accuracy of proposed analytical computational model for ultimate bending moment of concrete segments is numerically verified. The analytical computational model and numerical simulation for a practical engineering case indicate that the ultimate bending moment of concrete segments increases with increase of axial force on concrete segment in the case of large eccentricity compressive state.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c5d939d1a3276c7e0f9ae9ee74727be1 https://doi.org/10.4028/www.scientific.net/kem.853.177 Zobrazit plný text záznamu