List of Articles Roof Stiffness

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  1 - The Effect of Cross Beams in Retrofitting of the Roof System with Stress Regulation
  Nobakht Bakhtyari
  Plate girders structure is a major industry which is mainly used in the systems covered by these beams. Reducing deflection and decreasing the maximum bending moment can be considered as a development in methodology. By the use of cross beamsor braced beams, element per More

  Plate girders structure is a major industry which is mainly used in the systems covered by these beams. Reducing deflection and decreasing the maximum bending moment can be considered as a development in methodology. By the use of cross beamsor braced beams, element perpendicular to the girders is provided. In this paper, the effect of stiffness and distance elements development are studied. Differential equation of degree four governing the  behavior of the partial structures which is a quadratic relationship is determined by solving the following mathematical transformations, and the fundamental equations are derived. The resulting equations are solved by a practical problem and the answer to the problem .The modeling  results  are  compared  with the  SAP2000 program. The findingsshow highly accurate implementation and compliance. It is also revealed  that  stiffness  changing elements within the cross can include different amounts of stress, bending moment and improved cover system. Manuscript profile