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ZHANG Xue-fu, LAI Yuan-ming, WU Ya-ping, ZHAO De-an, YU Wen-bing, ZHANG Shu-juan. A BEAM ELEMENT FOR FRP THIN-WALL BOX BEAMS CONSIDERING BOTH SHEAR LAG AND SHEAR DEFORMATION[J]. Engineering Mechanics, 2003, 20(2): 122-132.
Citation: ZHANG Xue-fu, LAI Yuan-ming, WU Ya-ping, ZHAO De-an, YU Wen-bing, ZHANG Shu-juan. A BEAM ELEMENT FOR FRP THIN-WALL BOX BEAMS CONSIDERING BOTH SHEAR LAG AND SHEAR DEFORMATION[J]. Engineering Mechanics, 2003, 20(2): 122-132.
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A BEAM ELEMENT FOR FRP THIN-WALL BOX BEAMS CONSIDERING BOTH SHEAR LAG AND SHEAR DEFORMATION

  • State Key Laboratory of Frozen Soil Engineering, Cold &Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Gansu Lanzhou 730000;2. Dept. of Civil Engineering, Lanzhou Railway Institute, Gansu Lanzhou 730070

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  • Received Date: October 17, 2001
  • Revised Date: June 16, 2002
    Graphical Abstract
    • Abstract
  • In this paper, the differential equations of FRP thin-walled box beams are established based on the principle of minimum potential energy. Both shear lag and shear deformation are taken into account and the pertaining element stiffness matrix and equivalent nodal force vector are given. A finite element program is developed and some numerical examples are studied. Good agreement is reached between the present predictions and other available results including those of computer code ANSYS. It is demonstrated that the proposed element is effective and reliable.
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