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Mechanical Properties of Prestressed Concrete Trough Girder: Full-Scale Experiment and Nonlinear FE Analysis

• Structural Engineering
• Published: 14 August 2024

Cite this article

• Yan Yuan   ORCID: orcid.org/0009-0004-4639-9456 1 ,
• Ming Yang   ORCID: orcid.org/0000-0001-5057-9274 1 ,
• Fei Wang   ORCID: orcid.org/0000-0002-9485-6189 2 ,
• Yuliang Cai 3 &
• Wentao Xie 1  

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A full-scale experimental study on the mechanical properties of a 35 m prestressed concrete trough girder was carried out under simply supported supports. The load-displacement curve and cracking load of the test girder were obtained. In order to study the transverse crack resistance of single-line trough girder, a nonlinear finite element model was established by using ABAQUS. The accuracy of the finite element model was verified by comparing with the experimental results. The verified finite element model was used to study the crack resistance of the trough girder under different transverse prestressed reinforcement schemes, and then the reasonable reinforcement form of transverse prestress of the trough girder was discussed. The results show that for the test girder, the model without transverse prestressed reinforcement does not meet the requirements of Chinese code. It is very necessary for single-line trough girder to install transverse prestressed reinforcement, and the spacing of transverse prestressed reinforcement can be reduced from 2 m to 1.25 m.

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Acknowledgements

This work is part of the projects financially supported by the demonstration project of Ningbo science and technology service industry of China (Grant No. 2020F030).

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School of Transportation, Southeast University, Nanjing, 211189, China

Yan Yuan, Ming Yang & Wentao Xie

Engineering Research Center of Industrial Construction in Civil Engineering of Zhejiang Province, Ningbo University of Technology, Ningbo, 315000, China

Mechanical Engineering and Mechanics, Ningbo University, Ningbo, 315211, China

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Yuan, Y., Yang, M., Wang, F. et al. Mechanical Properties of Prestressed Concrete Trough Girder: Full-Scale Experiment and Nonlinear FE Analysis. KSCE J Civ Eng (2024). https://doi.org/10.1007/s12205-024-1513-6

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Received : 20 July 2023

Revised : 20 June 2024

Accepted : 28 June 2024

Published : 14 August 2024

DOI : https://doi.org/10.1007/s12205-024-1513-6

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The morphology, ultrastructure and molecular phylogeny of a new freshwater heterolobose amoeba parafumarolamoeba stagnalis n. sp. (vahlkampfiidae; heterolobosea).

Graphical Abstract

1. Introduction

2. materials and methods, 2.1. clone isolation, microscopy, and laboratory experiments, 2.2. dna sequencing and phylogenetic analysis, 3.1. cell morphology, parafumarolamoeba stagnalis n. sp., 3.2. phylogenetic analysis, 4. discussion, taxonomic summary, supplementary materials, author contributions, institutional review board statement, data availability statement, conflicts of interest.

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Borodina, A.S.; Mylnikov, A.P.; Janouškovec, J.; Keeling, P.J.; Tikhonenkov, D.V. The Morphology, Ultrastructure and Molecular Phylogeny of a New Freshwater Heterolobose Amoeba Parafumarolamoeba stagnalis n. sp. (Vahlkampfiidae; Heterolobosea). Diversity 2021 , 13 , 433. https://doi.org/10.3390/d13090433

Borodina AS, Mylnikov AP, Janouškovec J, Keeling PJ, Tikhonenkov DV. The Morphology, Ultrastructure and Molecular Phylogeny of a New Freshwater Heterolobose Amoeba Parafumarolamoeba stagnalis n. sp. (Vahlkampfiidae; Heterolobosea). Diversity . 2021; 13(9):433. https://doi.org/10.3390/d13090433

Borodina, Anastasia S., Alexander P. Mylnikov, Jan Janouškovec, Patrick J. Keeling, and Denis V. Tikhonenkov. 2021. "The Morphology, Ultrastructure and Molecular Phylogeny of a New Freshwater Heterolobose Amoeba Parafumarolamoeba stagnalis n. sp. (Vahlkampfiidae; Heterolobosea)" Diversity 13, no. 9: 433. https://doi.org/10.3390/d13090433

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