Study on the Design Methods Based on Beam Hinge Mechanism of Frame Beams in Seismic Zones

Abstract:

With the calculation methods for the sectional curvature ductility of reinforced concrete flexural components, analysis was conducted on the factors affecting the formation of plastic hinges at the ends of RC frame beams and their rotational capacities; on the basis of which, singly-doubly reinforced rectangular section method for flexural design calculation was put forth, which is favorable to the realization of beam hinge mechanism. The analysis of a practical design case shows that the method proposed is not only beneficial to the formation of plastic hinges at the beam ends and their rotational capacities, but also results in considerable reduction of longitudinal reinforcement, hence lowering of cost, ease of construction, so that it is worthy of popularization and application in design practice.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 1091-1095
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.1091
• Online since: May 2011
• Authors: Jun Qing Guo, Shan Sheng Dong
• Keywords: Beam End Cross Section, Frame Beam, Longitudinal Reinforcement, Plastic Hinge, Seismic Zone

References

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[4] Ministry of Construction of the People's Republic of China: Code for design of concrete structures, Beijing: China Architecture & Building Press, 2002. (In Chinese)