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Le thème de la structure constitue depuis toujours un aspect fondamental de la construction, intéressant aussi bien les ingénieurs que les architectes. Cet ouvrage consacré aux structures en architecture s'est donné pour objectif de contribuer à faciliter le dialogue entre ces deux domaines professionnels. L'art des structures offre un panorama complet sur les structures portantes et leur fonctionnement, en décrivant la manière dont les charges sont reprises et transmises jusqu'au sol. A cet effet, une approche intuitive est privilégiée : les bases de l'équilibre sont notamment expliquées en visualisant les efforts à l'intérieur d'ouvrages d'art historiques et modernes, à l'aide de simples outils graphiques. L'ouvrage est organisé selon un parcours précis, débutant par une analyse des forces, des charges et des conditions nécessaires pour que les forces soient en équilibre. Il se poursuit avec une étude des concepts d'effort, de résistance, de déformation et de rigidité, permettant de comprendre comment une structure doit être dimensionnée. L'ouvrage analyse ensuite les structures sollicitées à la traction (câbles dans le plan, réseaux de câbles et membranes), celles sollicitées à la compression (colonnes, arcs, voûtes, coupoles et coques) et les structures combinées avec traction et compression (structures funiculaires, treillis, poutres, cadres, grilles de poutres, voiles et dalles). L'ouvrage se clôt par une étude du phénomène de l'instabilité des éléments comprimés et de ses conséquences sur la conception des structures porteuses. (extrait du 4ème de couverture)

Arc --- Cable --- Coque --- Coupole --- Plancher --- Poutre --- Structure --- Treillis --- Voile --- Voûte --- Calcul --- Résistance des matériaux --- Statique --- Structure de grande portée --- Structure en béton --- Structure en bois --- Structure gonflable --- Architecture et technologie. --- Théorie des constructions. --- Structural engineering. --- Structural analysis (Engineering) --- Architecture and technology --- Architecture and technology. --- Architectural design. --- Structural design. --- Building. --- Architecture --- Structural engineering --- Technique de la construction --- Théorie des constructions.

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17 2 STRESS FIELDS FOR SIMPLE STRUCTURES 2. 1 INTRODUCTION In this chapter the behavior and strength of simple structures made of rein­ forced or prestressed concrete is investigated with the aid of stress fields. In particular, the webs and flanges of beams, simple walls, brackets, bracing beams and joints of frames are investigated. By this means, the majority of design cases are already covered. In reality, all structural components are three-dimensional. Here, however, components are considered either directly as two-dimensional plate elements (i. e. the plane stress condition with no variation of stress over the thickness of the element) or they are subdivided into several plates. Since two-dimensional structural elements are statically redundant, it is pOSSible for a particular loading to be in equilibrium with many (theoretically an infinite number of) stress states. If the lower bound method of the theory of plasticity is employed, then an admissible stress field or any combination of such stress fields may be selected. In chapter 4 it is shown that this method is suitable for the design of reinforced concrete structures, and the consequence of the choice of the final structural system on the structural behavior is dealt with in detail. The first cases of the use of this method date back to Ritter [6] and Morsch [4], who already at the beginning of the century investigated the resultants of the internal stresses by means of truss models.

Reinforced concrete construction. --- Structural design. --- Strains and stresses. --- Construction en béton armé --- Constructions --- Contraintes (Mécanique) --- Calcul --- Reinforced concrete construction --- Structural design --- Strains and stresses --- Construction en béton armé --- Contraintes (Mécanique) --- Buildings—Design and construction. --- Building. --- Construction. --- Engineering, Architectural. --- Engineering. --- Mechanics. --- Mechanics, Applied. --- Building Construction and Design. --- Engineering, general. --- Solid Mechanics. --- Applied mechanics --- Engineering, Mechanical --- Engineering mathematics --- Classical mechanics --- Newtonian mechanics --- Physics --- Dynamics --- Quantum theory --- Construction --- Industrial arts --- Technology --- Architectural engineering --- Buildings --- Construction science --- Engineering, Architectural --- Structural engineering --- Architecture --- Construction industry --- Design and construction --- Concrete construction --- Engineering design --- Architectural design --- Stresses and strains --- Elastic solids --- Flexure --- Mechanics --- Statics --- Structural analysis (Engineering) --- Deformations (Mechanics) --- Elasticity --- Graphic statics --- Strength of materials --- Stress waves

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