Dynamic behaviours of reinforced concrete columns under cyclic loading with variable rates

Author:

Xiao SY12ORCID,Li JB1,Mo YL2

Affiliation:

1. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian, China

2. Department of Civil and Environmental Engineering, University of Houston, Houston, USA

Abstract

The dynamic behaviour of reinforced concrete columns is inevitably affected by loading rate. This article reports the effect of loading rate on the dynamic behaviour of reinforced concrete columns under cyclic loading. Dynamic tests on reinforced concrete columns at five different loading rates were carried out using the MTS electro-hydraulic servo system. The cyclic loading was controlled by displacement with a loading rate ranging from 0.1 to 10 mm/s. Based on the test results, the effects of the loading rate on the hysteresis curves and the envelope curves of reinforced concrete columns were investigated. The research focused on the effect of loading rate on strength and deformation behaviour, including yielding and ultimate strengths as well as displacement. Finally, the effects of loading rate on the dissipated energy capabilities, the pinching effects and the stiffness degradation of reinforced concrete columns were also critically examined.

Funder

National Natural Science Foundation of China

Publisher

SAGE Publications

Subject

Building and Construction,Civil and Structural Engineering

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1. Experimental investigation of the dynamic mechanical properties of concrete under different strain rates and cyclic loading;Case Studies in Construction Materials;2024-07

2. Experimental and numerical investigations of precast circular reinforced concrete slender columns with intermediate connection;Advances in Structural Engineering;2023-12-14

3. Optimal Loading Rate Design Method for Cement Stone Mechanical Test;Journal of Testing and Evaluation;2023-08-03

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5. Rate sensitivity analysis of structural behaviors of recycled aggregate concrete frame;Journal of Building Engineering;2022-01

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