Abstract
All right reserved. In order to investigate the flexural behaviors of beams composed of steel girders and GFRP-concrete composite hollow slabs, three composite beams formed with different connection methods were tested under static load. The connection methods between the steel girders and the GFRP-concrete composite slabs were based on epoxy resin adhesive and shear studs for 3 specimens, respectively. The feasibilities of the aforementioned connection methods for interfacial connectors of the composite beams were verified by the comparison of change laws of sectional strain, mid-span deflections and interfacial slips of different specimens. Based on the failure modes for the tested specimens with different connection methods, a simplified calculation method was proposed to analyze the flexural capacity of the composite beams connected by shear studs. The results show that the composite beam connected by epoxy resin adhesive fails in shear fracture of GFRP plate along the length of the beam. While the composite beams connected by shear studs fail with the typical bending failure mode. The shear stud connectors exhibit higher interfacial shear stiffness than epoxy resin adhesive layer. The ultimate load-carrying capacity of the beam connected by shear studs is about twice of that of the beam connected by epoxy resin adhesive.
| Translated title of the contribution | Experiment on flexural behavior of steel-GFRP-concrete composite beams |
|---|---|
| Original language | Chinese (Simplified) |
| Pages (from-to) | 45-52 |
| Number of pages | 8 |
| Journal | 中国公路学报 (China journal of highway and transport) |
| Volume | 29 |
| Issue number | 9 |
| Publication status | Published - 1 Sept 2016 |
Keywords
- Bridge engineering
- Composite beam
- Connection method
- Experimental research
- Flexural behavior
- Flexural capacity
ASJC Scopus subject areas
- Civil and Structural Engineering
- Transportation
- Mechanical Engineering