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Case Studies in Construction Materials, 2022 Large pre-stressed concrete structures are usually confronted with random cracks and down-warping. Aiming to these structure diseases, a strategy for estimating distributed displacement of pre-stressed concrete beams with random cracks based on long ...
Zhiheng Ma, Wan Hong
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Applied Sciences, 2021 Stress is one of the most important physical indexes reflecting the mechanical behavior of concrete structures. In general, stress in structures cannot be directly monitored and can only be estimated through an established model of stress and strain. The
Huibing Xie +3 more
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Failure Mechanism of Pre-Stressed CFRP Beam Under Laser Ablation. [PDF]
Polymers (Basel)This paper focuses on the failure mechanism of a pre-stressed CFRP cantilever beam under laser ablation. During testing, a mass was applied to the CFRP cantilever beam to achieve a pre-stressed state, and the laser power densities varied from 500 to 1500 W·cm−2.
Zhao Y, Zhang R, Tan Z.
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Shear behavior of concrete beams pre-stressed with carbon fiber reinforced polymer tendons
Advances in Mechanical Engineering, 2019 This article presents experimental and numerical studies on the shear behavior of reinforced concrete beams pre-stressed with carbon fiber reinforced polymer tendons.
Zuohu Wang +4 more
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Deflection Analysis of RC Beams Strengthened by External Pre-stressed Steels
Chemical Engineering Transactions, 2016 Strengthening method of using external pre-stressed steels has many advantages. It gets the recognition of researchers and is widely used in the strengthening and rebuilding projects.
J. Li
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Applied SciencesIn order to study the stiffness degradation of pre-stressed concrete T-beams throughout their entire service life, full-scale destructive tests were conducted on newly constructed T-beams.
Bin Hu +4 more
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Operation of pre-stressed span beams of bridge cranes taking into account load combinations
Trudy Odesskogo Politehničeskogo Universiteta, 2022 The paper considers issues related to increasing the bearing capacity of span beams of bridge cranes by means of pre-stressing. It is known that the work of the span structure of the crane with pre-stressed beams takes place under the same conditions ...
Анатолій Вікторович Ткачьов +2 more
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Production Engineering Archives, 2021 This article presents the materials of deformability studies of pre-stressed steel-concrete beams reinforced with a package of reinforcement with different ratio of tape and rebar in the pure bending moment zone. The aim of the research was determination
Blikharskyy Yaroslav +4 more
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Influence of changes in the prestress force on dynamic specifications of the prestressed concrete beam [PDF]
Numerical Methods in Civil Engineering, 2020 Pre-stress techniques tend to increase cross-sectional capacity and optimize design. Such features have made these techniques rather popular. Over time, these structures tend to fail, and the reduction of pre-stress force over the lifetime of the ...
Behrouz Babakhani, Hossein Rahami
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STUDY OF SHORT-TERM FLEXURAL BEHAVIOR FOR GLUE-BAMBOO AND LUMBER BEAMS UNDER DIFFERENT PRE-STRESSED STATES [PDF]
Civil Engineering Journal, 2017 After a new kind of steel-lumber composite member, named as pre-stress glue-bamboo and lumber beam, was proposed by project team, the bending test was conducted on 12 groups of pre-stress glue-bamboo and lumber beams and 4 groups of ordinary glue-bamboo ...
Guo Nan, Wang Yan-Ju, Zuo Hong-Liang
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