Journal of Structural and Earthquake Engineering

Nonlinear Analysis of Two-Way Reinforced Concrete Slabs with Uncertainty Using the Random Variable Method

Document Type : Original Article

Authors

Fatemeh Mirzadeh 1
Ali Johari 2
Seyed Mahdi Dehghan 3

1 Iran ,Shiraz, Shiraz university of technology, Civil and Environmental, earthquake department

2 Iran, shiraz, Shiraz university of technology, Civil and environmental, Geotechnical department

3 Iran, shiraz, Shiraz university of Technology, Civil and Environmental, Earthquake department

Abstract
Reinforced two-way concrete slabs are essential structural components widely used in buildings and bridges due to their efficient load distribution. This study examines the effects of material property uncertainties, specifically concrete compressive strength and steel yield strength, using the random variable method. These key parameters are modeled as stochastic variables, and their influence on load-deflection response, fundamental frequency, and yield deformation is analyzed via finite element simulations in ABAQUS. Results show that variability in concrete and steel properties significantly impacts slab behavior, affecting serviceability and structural safety. The findings highlight the importance of considering material uncertainties in design for more reliable, optimized, and durable reinforced concrete structures capable of withstanding diverse loading conditions. 

Keywords

Reinforced Two-Way Concrete Slabs
Yield Line Theory
Slab Structural Design
Stochastic Analysis
Monte Ca rlo Simulation

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