Adel A. Al- Azzawi and Ali M. Al-Obaidie

 

Abstract

 

The main objective of the present investigation is to carryout a nonlinear analysis of reinforced
concrete beams resting on elastic foundation. Material nonlinearities due to cracking of
concrete, plastic flow, crushing of concrete and yielding of reinforcement are considered.
Foundation representation is assumed linear using Winkler model.
The reinforced concrete beams is modeled by using three dimensional finite elements with
steel bars as smeared layers. The examples have been chosen in order to demonstrate the
applicability of the modified computer program (Dynamic Analysis of Reinforced Concrete
Beams on Elastic Foundations DARCEF) by comparing the predicted behavior with that from
other experimental and analytical observations.
The program modified in the present research work is capable of simulating the behavior of
reinforced concrete beams resting on Winkler foundation and subjected to different types of
loading. The program solutions obtained for different reinforced concrete beams resting on
elastic foundations are in good agreement with the available results. Maximum percentage
difference in deflection is 15%.

 

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