A finite element formulation with combined loadings for shear dominant RC structures.

Details

• Creators:
  Mullapudi, Ravi S.
• Corporate Creators:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Corporate Contributors:
  United States. Dept. of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Reinforced concrete bridges
  • Bridge design
  • Earthquake resistant design
  • Bridge piers
  • Beams
  • Columns
  • Finite element method
  • Mathematical models
• Publication/ Report Number:
  NUTC R203 ; Project #00016751
• Resource Type:
  Tech Report
• Geographical Coverage:
  Missouri
• Corporate Publisher:
  Missouri University of Science and Technology. Center for Transportation Infrastructure and Safety
• Abstract:
  Inelastic failure of reinforced concrete (RC) structures under seismic loadings can be due either to loss of flexural, shear or bond ; capacity. Specifically, the effect of combined loadings can lead to a complex failure mechanism that plays a vital role in concrete ; mechanics. This report describes the formulation of an inelastic nonlinear beam element with axial, bending, and shear force ; interaction. The element considers shear deformation and is based on the section discretization into fibers with hysteretic materia ; models for the constituent materials. The steel material constitutive law follows the Menegotto-Pinto model. The concrete ; material model uses an orthotropic constitutive relation in which the directions of orthotropy are the principal directions of total ; strain. These directions will change during the loading history, in accordance with the well-known rotating crack model. The ; concrete model accounts for the biaxial state of stress in the directions of orthotropy, in addition to degradation under reversed ; cyclic loading. Shear deformations are coupled with bending effects. Transverse strains are internal variables determined by ; imposing equilibrium at each fiber between the concrete and the vertical steel stirrups. Element forces are obtained by performing ; equilibrium based numerical integration on section axial, flexural, and shear behavior along the length of the element. In order to ; establish the validity of the proposed model correlation studies were conducted between analytical results and experimental tests ; of columns tested under cyclic loading. A structural analysis of a shear sensitive bridge pier subjected to ground input motion is also presented.
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• Format:
  PDF
• Funding:
  DTRT06-G-0014
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27915/dot_27915_DS1.pdf
• File Type:
  [PDF - 662.57 KB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha256:492149ebe4e3390a4b28eff674fe0ccefedf138b115090941033db2bbc2e30e7