Experiment on Flexural Behaviour of Aluminium Alloy Square and Rectangular Tube Section Perforated Beams(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2018年04期
- Page:
- 34-44
- Research Field:
- Publishing date:
Info
- Title:
- Experiment on Flexural Behaviour of Aluminium Alloy Square and Rectangular Tube Section Perforated Beams
- Author(s):
- FENG Ran; LU Yang
- School of Civil and Hydraulic Engineering, Hefei University of Technology
- Keywords:
- aluminium alloy; square tube section; rectangular tube section; flexural capacity; local buckling; diameter to height ratio
- PACS:
- -
- DOI:
- -
- Abstract:
- The flexural behaviour of aluminum alloy square and rectangular tube section perforated specimens was studied by tests. A total of 13 specimens were tested subjected to three-point bending or four-point bending. The test materials were made of domestic 6061-T6 and 6063-T5 aluminum alloy extruded profiles respectively. The failure modes, flexural capacity, moment-curvature curves and strain distribution curves of the members were mainly studied. The influence of pore parameters on flexural behaviour of aluminum alloy square and rectangular tube section beams under two bending states was discussed. The results show that all specimens are subjected to local buckling failure under compression. For the square tube section beam, under the two bending states, when the diameter to height ratio of the hole is 0.3, the influence of the hole on the flexural capacity of specimen is less. When the diameter to height ratio of the hole is 0.6, the bearing capacity of the specimen is greatly reduced. For the rectangular tube section beam, the flexural capacity of the specimen decreases greatly with the increase of the number of holes in the three point bending. The number of holes has little effect on flexural capacity under four point bending. The bearing capacity difference of the square tube section beam is small in the two bending states. The flexural capacity of the rectangular tube section beam under three point bending is obviously higher than that of four point bending.
Last Update: 2018-07-18