Simulation of Test Arch Based on Concrete Damage Plasticity Model and Damage Evolution Analysis
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Published:2023-10-13
Issue:20
Volume:13
Page:11239
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ISSN:2076-3417
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Container-title:Applied Sciences
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language:en
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Short-container-title:Applied Sciences
Author:
Tian Zhongchu12, Cai Yue1, Shi Hongtao3, Wang Guibo3, Zhang Zujun1ORCID, Dai Ye1, Xu Binlin1
Affiliation:
1. School of Civil Engineering, Changsha University of Science and Technology, Changsha 410114, China 2. School of Civil Engineering, Fujian University of Technology, Fuzhou 350118, China 3. China Railway Construction Bridge Engineering Bureau Group First Engineering Co., Ltd., Dalian 116000, China
Abstract
In light of the limited research on latent damages during the construction of large-span suspension arches, this study introduced a method to simulate structural damage utilizing random porosity. Initially, based on data from real-world engineering projects, the most susceptible areas within the arch structure were pinpointed. Subsequently, multiple test arch simulation models were constructed. Employing Python, commands for random porosity were implemented within ABAQUS and distinct mesh modules were devised to depict structures under varying degrees of damage. The current investigation delved into the structural responses of these susceptible areas under different damage rates, shedding light on damage progression patterns. Notably, our findings demonstrated that concealed damages on the top plate of the arch foot profoundly influenced structural integrity, whereas damages at the arch hance were comparatively minimal and predominantly manifest at the arch base. The pronounced localized damage at both the arch base and hance initiated and intensified at sectional corners, necessitating enhanced anti-crack measures in these regions. Moreover, depending on the stresses of the arch structure, diverse reinforcement strategies could be employed, optimizing the balance between load-bearing efficiency and cost considerations.
Funder
National Nature Science Foundation of China Hunan Natural Science Foundation of China Major Technological Achievements Transformation Program of Hunan Strategic emerging industries of China Postgraduate Research and Innovation Project of Hunan Research on Key Technology of Long Span Reinforced Concrete Suspension Arch Construction
Subject
Fluid Flow and Transfer Processes,Computer Science Applications,Process Chemistry and Technology,General Engineering,Instrumentation,General Materials Science
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