Prediction to nonlinear behavior of steel frames subjected to fire

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      <subfield code="a">A new approach is presented for analysis of nonlinear behavior of steel frames subjected to fire. The material and geometrical nonlinearity as well as the non-uniform profile of temperature across section of frame members are taken into account. Thermal forces induced by temperature variation are also considered. The elasto-plastic stiffness equation of elements is established by using the generalized Clough model. The analysis of structures subjected to fire is converted to analysis of structures subjected to unbalanced forces induced by temperature increment. Then a procedure to calculate the nonlinear response and ultimate load of steel frames exposed to fire is proposed</subfield>
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      <subfield code="d">Oxford : Elsevier Science</subfield>
      <subfield code="g">Vol. 32, nº 4 June 1999 ; p. 347-368</subfield>
      <subfield code="t">Fire Safety Journal : the official journal of the International Association for Fire Safety Science</subfield>
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