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Analysis of the Shear Behavior of Stubby Y-Type Perfobond Rib Shear Connectors for a Composite Frame Structure
Sang-Hyo Kim1, Kun-Soo Kim2, Do-Hoon Lee3
1School of Civil & Environmental Engineering, Yonsei University, Yonsei-Ro 50, Seodaemun-Gu, Seoul 03722, Korea. sanghyo@yonsei.ac.kr.
Materials (Basel, Switzerland)
|November 23, 2017
Summary
Researchers developed stubby Y-type perfobond rib shear connectors for building structures. These connectors offer suitable shear strength and enhanced ductility, particularly with larger transverse rebars, making them ideal for composite frames.
Area of Science:
- Structural Engineering
- Materials Science
Background:
- Conventional Y-type perfobond rib shear connectors are designed for bridges and feature large components unsuitable for building structures.
- Composite structures utilize shear connectors to transfer forces between steel beams and concrete slabs.
Purpose of the Study:
- To introduce and evaluate novel stubby Y-type perfobond rib shear connectors for composite frames in building structures.
- To assess the shear strength and ductility of these modified connectors.
Main Methods:
- Development of stubby Y-type perfobond rib shear connectors with reduced rib dimensions.
- Conducting push-out tests on the novel connectors using transverse rebars of D13 and D16 sizes.
Main Results:
- The stubby Y-type shear connectors demonstrated adequate shear strength and ductility for composite frame applications.
- No significant difference in shear strength was observed between connectors using D13 and D16 rebars.
- Connectors with D16 rebars exhibited 45.1% greater ductility compared to those with D13 rebars.
Conclusions:
- Stubby Y-type perfobond rib shear connectors are a viable alternative for composite frames in building structures.
- The choice of transverse rebar size (D13 vs. D16) impacts ductility, with D16 offering superior performance.
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