Experiment Study on New Type Concrete Beams Reinforced with Aluminum Alloy Bars(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2015年01期
- Page:
- 35-41
- Research Field:
- Publishing date:
Info
- Title:
- Experiment Study on New Type Concrete Beams Reinforced with Aluminum Alloy Bars
- Author(s):
- XING Guo-hua; NIU Di-tao; HE Zhi-bing; LIU Bo-quan
- School of Civil Engineering, Chang’an University
- Keywords:
- concrete beam; aluminum alloy; flexural behavior; bearing capacity; arch action; failure pattern; static experiment
- PACS:
- -
- DOI:
- -
- Abstract:
- According to the experiment investigation on six new type concrete beams reinforced with aluminum alloy bars under monotonic static loading, the failure mechanism of new type concrete beams was researched. The failure process, loaddeflection curve, longitudinal strain distribution and flexural crack development were analyzed. The study results indicate that there are two typical failure patterns of new type concrete beams reinforced with aluminum alloy bars: flexural failure and bond failure. The flexural failure pattern always occurs with tensile rupture of aluminum alloy bars or crushing failure of concrete. Owing to the “arch action”, the bond failure pattern always occurs with anchor failure of aluminum alloy bars at the supports or shearcompression failure of concrete in shearcompression zone. Moreover, the ultimate load is quite near with the nominal yielding load of new type concrete beams reinforced with aluminum alloy bars, the average ratio between the ultimate loads and the nominal yielding loads is less than 1.15. In addition, the loaddeflection curves of flexural failure specimen can be divided into three stages: elastic stage, crack stage and failure stage.
Last Update: 2015-02-03