ANALYSIS OF THE EFFECT OF TIME ON FOUNDATION REQUESTS FOR THREE-DIMENSIONAL STRUCTURES DISCRETIZED IN FINITE ELEMENTS

• DOI: 10.22533/at.ed.317272210052

• Palavras-chave: Time Effect, Foundation Requests, Three-Dimensional Structures, Finite Elements.

• Keywords: Time Effect, Foundation Requests, Three-Dimensional Structures, Finite Elements.

• Abstract:

   In this article, requests over time are presented, obtained from modeling three-dimensional structures of different stiffnesses in finite elements. Eight situations are studied, namely: (i) structure with non-displaceable supports and material of the structure subject to creep; (ii) structure with non-displaceable supports and structure material subject to creep and shrinkage; (iii) structure with spring supports (k = 100 kN/m) and material of the structure subject to creep; (iv) structure with spring supports (k = 100 kN/m) and structure material subject to creep and shrinkage (v) structure with spring supports (k = 1000 kN/m) and material of the structure subject to creep (vi ) structure with spring supports (k = 1000 kN/m) and structure material subject to creep and shrinkage (vii) structure with viscoelastic supports and structure material subject to creep and, finally, (viii) structure with viscoelastic supports and material of the structure subject to creep and shrinkage. For 50% of the columns, there was a redistribution of stresses with values ​​tending over time (viscoelastic model) to the values ​​of the elastic model. It was also found that the effect of concrete creep was greater than that of shrinkage.

• Número de páginas: 8