Fracture Mechanism of Joints of Steel Box Column-H Steel Beam and Performance Study of Joints Strengthened with Haunches

Abstract:

Fracture test was performed on conventional joint of steel box column-H steel beam. The test results indicate that the conventional joints brittle fracture at butt weld of beam flanges. The performance of joints of steel box column-H steel beam strengthened with haunches is numerically simulated based on an ellipsoidal fracture model considering of welding residual stress and welding defects. The simulated results show that, for the joints of box column-H beam strengthened with haunches, the plastic rotation of could reach 0.03rad and the bearing capacity increased by 20% compared with that of the conventional joint.

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 3119-3122
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.3119
• Online since: October 2012
• Authors: Qian Zhen Tang*, Wan Zhen Wang, Xin Zhao, Hang Lei Shi, Chen Peng
• Keywords: Elliptical Fracture Model, Joints of Box Column-H Beam, Plastic Rotation, Test

References

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