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Behaviour of Corroded Single Stud Shear Connectors.
Wen Xue1, Ju Chen2, Ji-Hua Zhu3
1School of Civil Engineering and Architecture, Zhejiang University of Science and Technology, Hangzhou 310023, China. xuewen@zust.edu.cn.
Materials (Basel, Switzerland)
|August 5, 2017
Summary
Corrosion significantly affects stud shear connectors. This study validates a new single stud test method, showing its results are conservative compared to push tests for assessing corrosion effects.
Area of Science:
- Structural Engineering
- Materials Science
- Corrosion Engineering
Background:
- Stud shear connectors are critical structural components.
- Corrosion can degrade the performance of steel structures.
- Understanding corrosion effects on shear connectors is vital for structural integrity.
Purpose of the Study:
- To investigate the impact of corrosion on the static behavior of stud shear connectors.
- To develop and validate an innovative test setup for single stud shear connectors.
- To compare the results from single stud tests with traditional push-out tests.
Main Methods:
- Fabrication and testing of two series of specimens with varying stud diameters.
- Accelerated corrosion of specimens using an electronic method to achieve different corrosion rates.
- Static loading tests to determine load-slip behavior and ultimate strength.
- Measurement of actual corrosion rates and comparison with push-out test data.
Main Results:
- Corrosion demonstrably affects the static behavior and ultimate strength of stud shear connectors.
- The novel single stud shear connector test method provides conservative results compared to push-out tests.
- The developed test method is validated as a reliable approach for assessing corroded shear connectors.
Conclusions:
- The single stud shear connector test method is a valid and conservative approach for evaluating corrosion effects.
- Corrosion significantly reduces the static performance of stud shear connectors.
- Further research can utilize this validated method to study various degradation factors.
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