Static push-out test on steel and recycled tire rubber-filled concrete composite beams
- Resource Type
- Article
- Authors
- Qinghua Han; Ying Xing; Jie Xu; Zi-Lin Li
- Source
- Steel and Composite Structures, An International Journal, 19(4), pp.843-860 Oct, 2015
- Subject
- 토목공학
- Language
- English
- ISSN
- 1598-6233
1229-9367
Recycled tire rubber-filled concrete (RRFC) is employed into the steel-concrete composite structures due to its good ductility and crack resistance. Push-out tests were conducted to investigate the static behavior of steel and rubber-filled concrete composite beam with different rubber mixed concrete and studs. The results of the experimental investigations show that large studs lead a higher ultimate strength but worse ductility in normal concrete. Rubber particles in RRFC were shown to have little effect on shear strength when the compressive strength was equal to that of normal concrete, but can have a better ductility for studs in rubber-filled concrete. This improvement is more obvious for the composite beam with large stud to make good use of the high strength. Besides that the uplift of concrete slabs can be increased and the quantity and width of cracks can be reduced by RRFC efficiently. Based on the test result, a modified empirical equation of ultimate slip was proposed to take not only the compressive strength, but also the ductility of the concrete into consideration.