ANALYSIS ON KEY FACTORS FOR NUMERICAL SIMULATION OF AXIAL COMPRESSION PROCESS OF PASSIVE CONFINED CONCRETE COLUMNS

Abstract

Abstract: Axial compression failure of the fiber reinforced composite confined concrete columns involves issues of passive confined concrete and nonlinear problems. In order to further study axial compression failure process of the FRP-confined concrete columns, based on numerical simulation and analysis of existing experimental data, six key factors affecting numerical analysis results of FRP-confined concrete columns during axial compression are presented, including peak stress models and peak strain models for concrete under axial compression and active constant confining pressure, dilation function for concrete under passive confinement, concrete constitutive model, FRP-concrete contact types, types of boundary modeling and termination conditions for calculation. Applicability and limitation of each key factor in numerical simulation of axial compression process of FRP-confined concrete columns are pointed out.

Key words: FRP, axial compressive property, confined concrete, numerical simulation

CLC Number:

TB332

KANG Chao-yi, OUYANG Li-jun, DING Bin, ZHEN Bin. ANALYSIS ON KEY FACTORS FOR NUMERICAL SIMULATION OF AXIAL COMPRESSION PROCESS OF PASSIVE CONFINED CONCRETE COLUMNS[J]. Fiber Reinforced Plastics/Composites, 2018, 0(11): 5-14.

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