EFFECTIVE WIDTH FORMULA OF CONCRETE SLABS FOR CRACK WIDTH EVALUATION IN CONTINUOUS COMPOSITE BRIDGES

Prediction of Corrosion-Induced Crack Width of Corroded Reinforced Concrete Structures

This paper presents an experimental investigation on the crack width induced by the corrosion of reinforcing steel bars in concrete. Reinforcing steel bars with different diameters were corroded using an accelerated test in three types of concrete members, including 24 beams with corroded stirrup and 20 beams with corroded longitudinal reinforcing steel bars. The corrosion patterns and rusts ch...

Evaluation of Sealers for Concrete Bridges

Effective width of stressed-skin panels

Sensitivity analysis of investigating the parameters effect on the effective width of stressed-skin panels with single-skin and double-rib is presented. Based on the results, a simple formula for predicting the effective width of stressed-skin panels was derived. With this formula, the effective width (ratio) of flange can be determined by multiplying the primary effective width ratio, which is...

Effective Bit-Width and Under-Approximation

Recently, it has been proposed to use approximation techniques in the context of decision procedures for the quantifier-free theory of fixed-size bit-vectors. We discuss existing and novel variants of underapproximation techniques. Under-approximations produce smaller models and may reduce solving time significantly. We propose a new technique that allows early termination of an under-approxima...

Processing Digital Image for Measurement of Crack Dimensions in Concrete

The elements of the concrete structure are most frequently affected by cracking. Crack detection is essential to ensure safety and performance during its service life. Cracks do not have a regular shape, in order to achieve the exact dimensions of the crack; the general mathematical formulae are by no means applicable. The authors have proposed a new method which aims to measure the crack dimen...