Parametric Reliability Analysis of the Seismic Bearing Capacity of Bottom Columns in Reinforced Concrete Frame Structure

Abstract:

After the Wenchuan earthquake, Chinese Code for Seismic Design of Buildings (GB50011-2010) adjusts some seismic design parameters. Taking into account the randomness of gravity load and earthquake action and the uncertainty of steel strength and concrete strength, this paper analyzes the reliability of seismic bearing capacity of reinforced concrete frame bottom columns. Based on the structural analysis software PKPM, which is in accordance with code for seismic design of buildings, the reliability index of seismic bearing capacity of reinforced concrete frame bottom columns is calculated by the Monte Carlo method with different parameters, such as different seismic intensity, different building storey number, different seismic adjustment coefficient (increment coefficient of frame columns end moment and increment coefficient of design value of combination moment of underlying frame columns lower end section), different horizontal span number, different column location (side column and interior column) and so on. The results indicate that the reliability index can reach 2.0 or above, and can meet the target requirements for all cases which are designed with the current code for seismic design of buildings (GB50011-2010).

• Periodical: Applied Mechanics and Materials (Volumes 204-208)
• Pages: 2478-2482
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.204-208.2478
• Online since: October 2012
• Authors: You Bao Jiang, Yu Lai Zhao, Wei Jun Yang, Zhi Ling Gong
• Keywords: Bottom Columns, Monte-Carlo Method (MC-Method), Parametric Reliability Analysis, Reinforced Concrete Frame Structure

References

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