Techno Press
Techno Press

Computers and Concrete
  Volume 4, Number 6, December 2007 , pages 457-475
DOI: https://doi.org/10.12989/cac.2007.4.6.457
 


Nonlinear analysis of RC beams based on simplified moment-curvature relation considering fixed-end rotation
Sun-Pil Kim

 
Abstract
    A simple analytical procedure to analyze reinforced concrete (RC) beams with cracked section is proposed on the basis of the simplified moment-curvature relations of RC sections. Unlike previous analytical models which result in overestimation of stiffness and underestimation of structural deformations induced from assuming perfect-bond condition between steel and concrete, the proposed analytical procedure considers fixed-end rotation caused by anchorage. Furthermore, the proposed analytical procedure, compared with previous numerical models, promotes effectiveness of analysis by reflecting several factors which can influence nonlinearity of RC structure into the simplified moment-curvature relation. Finally, correlation studies between analytical and experimental results are conducted to establish the applicability of the proposed analytical procedure to the nonlinear analysis of RC structures.
 
Key Words
    reinforced concrete; anchorage slip; fix-end rotation; moment-curvature relation.
 
Address
Hyundai Development Institute of Construction Technology, #102-4, Mabuk-Dong, Giheung-Gu, Yongin-Si, Gyounggi-Do, 446-716, Korea
 

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