Results 11 to 20 of about 1,178,507 (312)
Journal of Civil Engineering and Management, 2020 This paper tested the behaviour of 32 high-strength concrete columns confined by high-strength spirals under concentric compression. The test parameters included unconfined concrete compressive strength, spiral yield strength, volumetric ratio, and ...
Chongchi Hou, Wenzhong Zheng, Wei Chang
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Mechanical properties and influence mechanism of confined concrete arches in high-stress tunnels
International Journal of Mining Science and Technology, 2023 Deep underground projects (e.g., coal mines), are often faced with complex conditions such as high stress and extremely soft rock. The strength and rigidity of the traditional support system are often insufficient, which makes it difficult to meet the ...
Bei Jiang +6 more
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Experimental Study of Confined Low-, Medium- and High-Strength Concrete Subjected to Concentric Compression [PDF]
ITB Journal of Engineering Science, 2012 An experimental study of 23 low-, medium- and high-strength concrete columns is presented in this paper. Square-confined concrete columns without longitudinal reinforcement were designed, and tested under concentric axial compression.
Antonius, Iswandi Imran
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Energies, 2023 Geopolymer concrete is preferred over OPC due to its use of energy waste such as fly ash, making it more sustainable and energy-efficient. However, limited research has been done on its seismic characterization in confined masonry, highlighting a gap in ...
Muhammad Mubashir Ajmal +6 more
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A Proposed Soft Computing Model for Ultimate Strength Estimation of FRP-Confined Concrete Cylinders
Applied Sciences, 2020 In this paper, the feed-forward backpropagation neural network (FFBPNN) is used to propose a new formulation for predicting the compressive strength of fiber-reinforced polymer (FRP)-confined concrete cylinders.
Reza Kamgar +4 more
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Active confinement of weakened concrete columns [PDF]
Materials and Structures, 2014 This paper investigates the advantages of using of external active confinement to improve the compression load capacity of concrete cylinders using mild steel band clamps. For this, passive and actively pre-stressed steel bands have been attached to concrete cylinders to mimic real structural columns which may otherwise have to be removed and replaced ...
Holmes, Niall +2 more
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International Journal for Computational Civil and Structural Engineering, 2022 The article discusses the relevance of developing techniques for confined elements with FRP reinforcement. The method for calculating centrally confined concrete columns with non-metallic GFRP reinforcement (without regard to its compression work) is ...
Ashot Tamrazyan, Andrey Lapshinov
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Analytical model for the compressive strength of confined concrete with textile reinforced mortar
Vietnam Journal of Mechanics, 2022 This paper proposed an analytical model to predict the confined concrete compressive strength with textile reinforced mortar (TRM). Based on 341 compression tests, different parameters have been analyzed to clarify their influence on the compressive ...
Minh-Quyen Cao, Xuan-Huy Nguyen
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Strength and Energy Absorption of High-strength Steel Fiber-concrete Confined by Circular Hoops
International Journal of Technology, 2015 This paper presents the results of an experimental study of the behavior of steel fiber high strength concrete confined by hoops round cross-section. Behavior strength and energy absorption capability of confined fibrous concrete is the main focus in ...
Antonius
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Stress-strain model for high strength concrete confined by FRP [PDF]
, 2010 Ductility of High Strength Concrete (HSC) columns can be increased by lateral confinement. The conventional confinement with steel reinforcement may not always be adequate to provide the ductility levels desired by the engineer.
S Setunge +5 more
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