The 1919 English translation of the classic nineteenth-century work that proved the use of virtual work methods for structural analysis.

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.

Steel Framed Structures contains ten chapters on rigid frames, sway frames, multi-storey frames, interbraced columns and beams, elastic stability, moment-resisting connections, flexibly connected frames, portal frames, and braced arches.

When this series first appeared in 1875 it was considered the best textbook on the subject, as it provided comprehensive coverage of all aspects of building construction work. This new reprint of the revised 1904 edition, in three volumes, contains over 1,350 pages of text and useful line drawings. Volume 1 covers brickwork, carpentry and roofing, giving detailed practical guidance on all aspects of the work and offering definitions of the terms used. Volume 2 includes sections on joinery, stairs and floors with Volume 3 providing detailed information on materials, including stone, brickwork, lime and paint.