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Journal of Civil and Environmental Engineering

ISSN: 2165-784X

Open Access

An Approach For Plastic Hinge Length Of Reinforced Concrete Columns

Abstract

Pham Phu Anh Huy*

Due to the complexity of material nonlinearity, the accuracy determination of the plastic hinge length of Reinforced Concrete (RC) column is facing many difficulties. In past decades, there are some definitions the plastic hinge length of reinforced concrete columns, and some models for predicting this length. However, the results had a large difference. So, the paper presented some methods to approach the definition of plastic hinge length based on compressive and tensile yield strain of rebars, peak strain of concrete cover and core, curvature profiles, and physical observation. In addition, four tested columns with cross-section of 400 mm square was conducted to investigate the plastic hinge length. Yet, based on tested results and 114 column database, the new approach method and the new proposed equation to estimate the equivalent plastic hinge length of reinforced concrete columns with rectangular sections.

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