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Titre du document / Document title

Efficient analysis of flat slab structures subjected to lateral loads

Auteur(s) / Author(s)

KIM H.-S. (1) ; LEE D.-G. (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) Department of Architectural Engineering, Sungkyunkwan University, Chun-chun-dong, Jang-an-gu, Suwon 440-746, COREE, REPUBLIQUE DE

Résumé / Abstract

The flat slab system has been adopted in many buildings constructed recently due to the advantage of reduced floor heights to meet the economical and architectural demands. Structural engineers commonly use the equivalent frame method with equivalent beams proposed by Jacob S. Grossman in practical engineering for the analysis of flat slab structures. However, in many cases, when it is difficult to use the equivalent frame method, it is necessary to use a refined finite element model for an accurate analysis. However, this takes a significant amount of computational time and memory if the entire building structure were to be subdivided into a finer mesh. An efficient analytical method is proposed in this study to obtain accurate results in significantly reduced computational time. The proposed method employs super elements developed using the matrix condensation technique and fictitious beams are used in the development of super elements to enforce the compatibility at the interfaces of super elements. The stiffness degradation due to cracking in the flat slab system considered in the equivalent frame method was taken into account by reducing the modulus of elasticity of floor slabs based on linear elastic finite element analysis in this study. Static and dynamic analyses of example structures were performed and the efficiency and accuracy of the proposed method were verified by comparing the results with those of the refined finite element model and the equivalent frame method.

Revue / Journal Title

Engineering structures    ISSN  0141-0296   CODEN ENSTDF 

Source / Source

2005, vol. 27, no2, pp. 251-263 [13 page(s) (article)] (18 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1978) (Revue)

Mots-clés anglais / English Keywords

Displacement

;

Example

;

Finite element method

;

Structural analysis

;

Degradation

;

Lateral load

;

Stiffness

;

Flat slab floor

;

Construction structure

;

Structural design

;

Mots-clés français / French Keywords

Déplacement

;

Exemple

;

Méthode élément fini

;

Analyse structurale

;

Dégradation

;

Charge latérale

;

Rigidité

;

Plancher dalle

;

Structure construction

;

Calcul construction

;

Mots-clés espagnols / Spanish Keywords

Desplazamiento

;

Ejemplo

;

Método elemento finito

;

Análisis estructural

;

Degradación

;

Carga lateral

;

Rigidez

;

Piso baldosa

;

Estructura construcción

;

Cálculo construcción

;

Mots-clés d'auteur / Author Keywords

Flat slab structure

;

Stiffness of slab

;

Stiffness degradation

;

Matrix condensation

;

Super element

;

Fictitious stiff beam

;

Localisation / Location

INIST-CNRS, Cote INIST : 18784, 35400012611282.0090

Nº notice refdoc (ud4) : 16410786



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