HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Engineering / Faculty of Engineering >
Peer-reviewed Journal Articles, etc >

RBSM based analysis on mechanical degradation of non-air entrained concrete under frost action - A general prediction with various water cement ratio, lowest temperatures and FTC numbers

This item is licensed under:Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International

Files in This Item:
[Zhao0613]Final Manuscript.pdf691.79 kBPDFView/Open
Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/82096

Title: RBSM based analysis on mechanical degradation of non-air entrained concrete under frost action - A general prediction with various water cement ratio, lowest temperatures and FTC numbers
Authors: Wang, Zhao Browse this author
Gong, Fuyuan Browse this author
Zhang, Dawei Browse this author
Wang, Yi Browse this author
Ueda, Tamon Browse this author →KAKEN DB
Keywords: Concrete
Frost damage
Rigid body spring model
Simulation and modeling
Issue Date: 30-Jun-2019
Publisher: Elsevier
Journal Title: Construction and building materials
Volume: 211
Start Page: 744
End Page: 755
Publisher DOI: 10.1016/j.conbuildmat.2019.03.151
Abstract: Frost action is one of the significant factors for deterioration of concrete structures in cold and wet regions. To evaluate the effects of freezing-thawing environment on the structural performance of reinforced concrete structures, it is important to know the degradation of concrete materials such as strength, stiffness, ductility, and so on. In order to investigate the mechanical behaviors of concrete under the effect of frost damage including deformation as well as strength, a two-dimensional mesoscopic Rigid Body Spring Model has been proposed previously. In current paper, a systematic study was conducted to simulate and analyze the frost-damaged concrete. Behavior under mechanical loading including uniaxial compression and tension is simulated on non-air-entrained concrete model after a full process of freezing-thawing cycles is simulated. The deteriorated properties such as compressive strength, tensile strength, elastic modulus, etc. are evaluated and parametric study is conducted. Then, a macroscale prediction model was proposed based on the mesoscale simulation results and it considered different environmental factors which varied among different laboratory experiments. The proposed model could predict the strength degradation in compression and tension of concrete with the number of FTCs which was also verified by numerous experimental results. Besides, pursuant to the existing constitutive models for non-damaged concrete, stress-strain relationships in compression and tension for frost-damaged concrete were developed according to the simulation results and several test data by mathematical regression. Satisfactory correlation was found through the comparisons between analytical and experimental results to show the applicability of the models in studying the structural performance of reinforced concrete structures.
Rights: © <2019>. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/82096
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 上田 多門

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 

 - Hokkaido University