ABSTRACT

The reliability indices were calculated for a full range of dead load and live load ratios. For each considered design case, the results are presented for three values of φ for light-weight concrete, φ = 0.70, 0.75 and 0.80. For comparison, the calculations

1 INTRODUCTION

The new Load and resistance are treated as random variables. They are represented by statistical parameters, i.e. bias factor and coefficient of variation. Bias factor is the ratio of mean value and nominal (design) value. The load is considered as a combination of dead load, D, and live load, L. The statistical parameters are assumed based on the available literature. The statistical parameters of materials were determined from the test data provided by industry, including compressive strength of concrete cylinders for normal weight concrete (NWC) and light-weight concrete (LWC), and yield strength of reinforcing bars.