An Experimental Study on the Shear Performance of a CFRP–Steel Composite Component Bushing Bolt Connection
Source abstract
Abstract
Carbon Fiber Reinforced Polymers (CFRPs) are extensively utilized in civil engineering and other domains due to their exceptional mechanical properties. Integrating CFRPs with steel presents an approach to structural design, characterized by enhanced load-bearing capabilities and extended service life. Static tensile and hysteretic tests were employed to examine the influence of the bolt diameter and steel plate thickness on the shear resistance of component. The results indicate that under monotonic loading, the load–displacement curves for each component undergo three distinct phases: the linear stage, damage evolution stage, and failure stage, ultimately leading to a bolt pull-off failure in all six groups of components. Under cyclic loading, the component with a 1.5 mm thick steel plate and a 4.6 mm diameter bushing bolt experienced bolt shear failure, primarily caused by the increased steel plate thickness, which enhanced the component’s load-carrying capacity, ultimately leading to the overloading and failure of the M4 bolt. The other five groups of components experienced pull-off failures. The hysteresis curve analysis revealed that enhancements in steel plate thickness and bolt diameter improve the hysteresis behaviour of the connections. However, there was a significant reduction in the strength degradation coefficient and hoop stiffness, which decreased to approximately 55% and 40% of their initial values, respectively.
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Research context
OpenAlex topics: Structural Load-Bearing Analysis · Structural Behavior of Reinforced Concrete · Structural Engineering and Vibration Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Construction Engineering, Suqian University, Suqian 223800, China
Jiangsu Province Engineering Research Center of Prefabricated Building and Intelligent Construction, Suqian 223800, China
College of Metallurgical Engineering, Anhui University of Technology, Ma’anshan 243032, China
College of Mechanical Engineering, Anhui University of Technology, Ma’anshan 243032, China
Department of Mechanical Engineering, University of Birmingham, Birmingham B15 2TT, UK
College of Mechanic and Electronic Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
College of Mechanical and Electrical Engineering, Suqian University, Suqian 223800, China
Funding
Jiangsu Province Engineering Research Center of Prefabricated Building and Intelligent Construction Fund · Key Research Project of Natural Science Foundation of Anhui Provincial Universities · Science Research Project of Jiangsu Province · Suqian Sci & Tech program
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