Effects of Concrete Nonlinear Modeling on the Analysis of Push-out 
 Test by Finite Element Method

Reinforced concrete skew slabs are commonly used in bridges due to space constraints in motorways and in congested urban areas. Such slabs also often need to contain openings for architectural requirements or services, and this study seeks to determine the effect of these openings on the strength of the skew slabs. The finite element method was used to analyze 13 cases of slabs with skew angles of 45°. The first and second cases were used to validate the results with experimental work. Other cases studied the effect of the position and shape of openings on the strength of the skew slabs under both one-point and four-point loading conditions. The study also showed that the worst location for the opening was near the obtuse corners since this is where most of the load is transferred. With respect to the shape of openings, three different shapes with the same area were used: skew, circle, and square shapes. It was found that the effect of the opening shape depends on how many steel reinforcements are removed, as well as the appearance of negative cracking brought on as a result of the opening. Overall, the square shape introduces the smallest reduction in the skew slab strength compared with a slab with no opening. Accordingly, the study recommends that the strength of skew slabs can best be maintained if square openings are employed near the acute corners, alongside negative steel reinforcement to avoid cracking.

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Deterministic and Probabilistic Structural Integrity Analysis of the Reinforced Concrete Structures

Dundulis,

Kulak,

Uspuras

2012

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This book represents information obtained from authentic and highly regarded sources. Reprinted material is quoted with permission, and sources are indicated. A wide variety of references are listed. Every reasonable effort has been made to give reliable data and information, but the author and the publisher cannot assume responsibility for the validity of all materials for the consequences of their use.

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Effects of Concrete Nonlinear Modeling on the Analysis of Push-out Test by Finite Element Method

Cited by 18 publications

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Mechanical properties of concrete using different types of recycled plastic as an aggregate replacement

Mechanical properties of concrete using different types of recycled plastic as an aggregate replacement

Effect of openings on simply supported reinforced concrete skew slabs using finite element method

Deterministic and Probabilistic Structural Integrity Analysis of the Reinforced Concrete Structures

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