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Modelling of Dapped-End Beams under Dynamic Loading

Zubair Imam Syed, Esra’a Sami Hejah, and Osama Ahmed Mohamed
Abu Dhabi University/ Department of Civil Engineering, United Arab Emirates, Abu Dhabi
Abstract—The behavior of a reinforced concrete dapped-end beam under dynamic load is expected to vary from its behavior under static load. Although, many studies have been conducted on the performance of reinforced concrete rectangular beams under different types of dynamic loading, but in-depth investigations on the preformation of half-joints or dapped-end beams under impact loading are limited. Due to complexity and resource requirements for experimental study on half-joints, often numerical simulations are preferred. This study presents details of advanced finite element modelling of dapped end beams under impact loads to achieve a better understanding of their performance. This study includes modelling techniques using different constitutive material models for concrete to highlight the suitability of various concrete models to demonstrate the behavior of beams with half-joints. Verification results of the modelled dapped-end beam has been presented along with results showing behavior of modelled beam under different impact loads. 
 
Index Terms—finite element analysis, dapped-end beams, material modelling, impact loading

Cite: Zubair Imam Syed, Esra’a Sami Hejah, and Osama Ahmed Mohamed, "Modelling of Dapped-End Beams under Dynamic Loading," International Journal of Mechanical Engineering and Robotics Research, Vol. 6, No. 3, pp. 242-247, May 2017. DOI: 10.18178/ijmerr.6.3.242-247
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