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Experimental and Numerical Analysis of high-strength concrete beams Including Steel Fibers and Large-Particle recycled Coarse Aggregates

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Fluid Dynamics & Materials Processing 2021年第5期17卷 947-958页

作者： Chunyang Liu Yangyang Wu Yingqi Gao Zhenyun Tang Department of Civil Engineering Shandong Jianzhu UniversityJinan250101China Key Laboratory of Building Structural Retrofitting and Underground Space Engineering Shandong Jianzhu UniversityMinistry of EducationJinan250101China Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit Beijing University of TechnologyBeijing100124China

In order to study the performances of high-strength concrete beams including steel fibers and large-particle recycled aggregates,four different beams have been designed,tested experimentally and simulated *** varying parameters,the replacement rates of recycled coarse aggregates and CFRP(carbon fiber reinforced polymer)sheets have been *** failure mode of these beams,related load deflection curves,stirrup strain and shear capacity have been determined through monotonic loading *** simulations have been conducted using the ABAQUS finite element *** results show that the shear failure mode of recycled concrete beams is similar to that of ordinary concrete *** shear carrying capacity of high-strength concrete beams including steel fibers and large-particle recycled coarse aggregates grows with an increase in the replacement rate of recycled coarse *** with CFRP sheets can significantly improve the beam’s shear carrying capacity and overall resistance to deformation.

关键词： high-strength recycled concrete beam steel fiber large-particle recycled aggregates pre-damage reinforcement numerical simulation carrying capacity calculation

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