HISTORY OF THE THEORY OF STRUCTURES, A2 from arch analysis to computational mechanics foreword by.. ekkehard ramm.
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WILHELM ERNST & SOHN VERL,
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Table of Contents:
- Machine generated contents note: 1.1. Internal scientific tasks
- 1.2. Practical engineering tasks
- 1.3. Didactic tasks
- 1.4. Cultural tasks
- 1.5. Aims
- 1.6. invitation to take part in a journey through time to search for the equilibrium of loadbearing structures
- 2.1. What is theory of structures?
- 2.1.1. Preparatory period (1575-1825)
- 2.1.1.1. Orientation phase (1575-1700)
- 2.1.1.2. Application phase (1700-1775)
- 2.1.1.3. Initial phase (1775-1825)
- 2.1.2. Discipline-formation period (1825-1900)
- 2.1.2.1. Constitution phase (1825-1850)
- 2.1.2.2. Establishment phase (1850-1875)
- 2.1.2.3. Classical phase (1875-1900)
- 2.1.3. Consolidation period (1900-1950)
- 2.1.3.1. Accumulation phase (1900-1925)
- 2.1.3.2. Invention phase (1925-1950)
- 2.1.4. Integration period (1950 to date)
- 2.1.4.1. Innovation phase (1950-1975)
- 2.1.4.2. Diffusion phase (1975 to date)
- 2.2. From the lever to the trussed framework
- 2.2.1. Lever principle according to Archimedes
- 2.2.2. principle of virtual displacements
- 2.2.3. general work theorem
- 2.2.4. principle of virtual forces
- 2.2.5. parallelogram of forces
- 2.2.6. From Newton to Lagrange
- 2.2.7. couple
- 2.2.8. Kinematic or geometric school of statics?
- 2.2.9. Stable or unstable, determinate or indeterminate?
- 2.2.10. Syntheses in statics
- 2.2.11. Schwedler's three-pin frame
- 2.3. development of higher engineering education
- 2.3.1. specialist and military schools of the ancien regime
- 2.3.2. Science and enlightenment
- 2.3.3. Science and education during the French Revolution (1789-1794)
- 2.3.4. Monge's curriculum for the Ecole Polytechnique
- 2.3.5. Austria, Germany and Russia in the wake of the Ecole Polytechnique
- 2.3.6. education of engineers in the United States
- 2.4. study of earth pressure on retaining walls
- 2.4.1. Earth pressure determination according to Culmann
- 2.4.2. Earth pressure determination according to Poncelet
- 2.4.3. Stress and stability analyses
- 2.5. Insights into bridge-building and theory of structures in the 19th century
- 2.5.1. Suspension bridges
- 2.5.1.1. Austria
- 2.5.1.2. Bohemia and Moravia
- 2.5.1.3. Germany
- 2.5.1.4. United States of America
- 2.5.2. Timber bridges
- 2.5.3. Hybrid systems
- 2.5.4. Goltzsch and Elster viaducts (1845-1851)
- 2.5.5. Britannia Bridge (1846-1850)
- 2.5.6. first Dirschau Bridge over the Vistula (1850-1857)
- 2.5.7. Garabit Viaduct (1880-1884)
- 2.5.8. Bridge engineering theories
- 2.5.8.1. Reichenbach's arch theory
- 2.5.8.2. Young's masonry arch theory
- 2.5.8.3. Navier's suspension bridge theory
- 2.5.8.4. Navier's Resume des Lecons
- 2.5.8.5. trussed framework theories of Culmann and Schwedler
- 2.5.8.6. Beam theory and stress analysis
- 2.6. industrialisation of steel bridge-building between 1850 and 1900
- 2.6.1. Germany and Great Britain
- 2.6.2. France
- 2.6.3. United States of America
- 2.7. Influence lines
- 2.7.1. Railway trains and bridge-building
- 2.7.2. Evolution of the influence line concept
- 2.8. beam on elastic supports
- 2.8.1. Winkler bedding
- 2.8.2. theory of the permanent way
- 2.8.3. From permanent way theory to the theory of the beam on elastic supports
- 2.8.4. Geotechnical engineering brings progress
- 2.9. Displacement method
- 2.9.1. Analysis of a triangular frame
- 2.9.1.1. Bar end moments
- 2.9.1.2. Restraint forces
- 2.9.1.3. Superposition means combining the state variables linearly with the solution
- 2.9.2. Comparing the displacement method and trussed framework theory for frame-type systems
- 2.10. Second-order theory
- 2.10.1. Josef Melan's contribution
- 2.10.2. Suspension bridges become stiffer
- 2.10.3. Arch bridges become more flexible
- 2.10.4. differential equation for laterally loaded struts and ties
- 2.10.5. integration of second-order theory into the displacement method
- 2.10.6. Why do we need fictitious forces?
- 2.11. Ultimate load method
- 2.11.1. First approaches
- 2.11.2. Foundation of the ultimate load method
- 2.11.2.1. Josef Fritsche
- 2.11.2.2. Karl Girkmann
- 2.11.2.3. Other authors
- 2.11.3. paradox of the plastic hinge method
- 2.11.4. establishment of the ultimate load method
- 2.11.4.1. Sir John Fleetwood Baker
- 2.11.4.2. Excursion: a sample calculation
- 2.11.4.3. Calculating deformations
- 2.11.4.4. Anglo-American school of ultimate load theory
- 2.11.4.5. Controversies surrounding the ultimate load method
- 2.12. Structural law - Static law - Formation law
- 2.12.1. five Platonic bodies
- 2.12.2. Beauty and law
- 2.12.2.1. Structural law
- 2.12.2.2. Static law
- 2.12.2.3. Formation law
- 3.1. What is engineering science?
- 3.1.1. First approaches
- 3.1.2. Raising the status of the engineering sciences through philosophical discourse
- 3.1.2.1. contribution of systems theory
- 3.1.2.2. contribution of Marxism
- 3.1.2.3. Engineering sciences theory
- 3.1.3. Engineering and the engineering sciences
- 3.2. Subsuming the encyclopaedic in the system of classical engineering sciences: five case studies from applied mechanics and theory of structures
- 3.2.1. On the topicality of the encyclopaedic
- 3.2.2. Franz Joseph Ritter von Gerstner's contribution to the mathematisation of construction theories
- 3.2.2.1. Gerstner's definition of the object of applied mechanics
- 3.2.2.2. strength of iron
- 3.2.2.3. theory and practice of suspension bridges in Handbuch der Mechanik
- 3.2.3. Weisbach's encyclopaedia of applied mechanics
- 3.2.3.1. Lehrbuch
- 3.2.3.2. invention of the engineering manual
- 3.2.3.3. journal
- 3.2.3.4. Strength of materials in Weisbach's Lehrbuch
- 3.2.4. Rankine's Manuals, or the harmony between theory and practice
- 3.2.4.1. Rankine's Manual of Applied Mechanics
- 3.2.4.2. Rankine's Manual of Civil Engineering
- 3.2.5. Foppl's Vorlesungen fiber technische Mechanik
- 3.2.5.1. origin and goal of mechanics
- 3.2.5.2. structure of the Vorlesungen
- 3.2.5.3. most important applied mechanics textbooks in German
- 3.2.6. Handbuch der Ingenieurwissenschaften as an encyclopaedia of classical civil engineering theory
- 3.2.6.1. Iron beam bridges
- 3.2.6.2. Iron arch and suspension bridges
- 4.1. arch allegory
- 4.2. geometrical thinking behind the theory of masonry arch bridges
- 4.2.1. Ponte S. Trinita in Florence
- 4.2.1.1. Galileo and Guidobaldo del Monte
- 4.2.1.2. Hypotheses
- 4.2.2. Establishing the new thinking in bridge-building practice using the example of Nuremberg's Fleisch Bridge
- 4.2.2.1. Designs for the building of the Fleisch Bridge
- 4.2.2.2. Designs and considerations concerning the centering
- 4.2.2.3. loadbearing behaviour of the Fleisch Bridge
- 4.3. From wedge to masonry arch, or the addition theorem of wedge theory
- 4.3.1. Between mechanics and architecture: masonry arch theory at the Academie Royale d'Architecture de Paris (1687-1718)
- 4.3.2. La Hire and Belidor
- 4.3.3. Epigones
- 4.4. From the analysis of masonry arch collapse mechanisms to voussoir rotation theory
- 4.4.1. Baldi
- 4.4.2. Fabri
- 4.4.3. La Hire
- 4.4.4. Couplet
- 4.4.5. Bridge-building - empiricism still reigns
- 4.4.6. Coulomb's voussoir rotation theory
- 4.4.7. Monasterio's Nueva Teorica
- 4.5. line of thrust theory
- 4.5.1. Prelude
- 4.5.2. Gerstner
- 4.5.3. search for the true line of thrust
- 4.6. breakthrough for elastic theory
- 4.6.1. dualism of masonry arch and elastic arch theory under Navier
- 4.6.2. Two steps forwards, one back
- 4.6.3. From Poncelet to Winkler
- 4.6.4. step back
- 4.6.5. masonry arch is nothing, the elastic arch is everything - the triumph of elastic arch theory over masonry arch theory
- 4.6.5.1. Grandes Voutes
- 4.6.5.2. Doubts
- 4.6.5.3. Tests on models
- 4.7. Ultimate load theory for masonry arches
- 4.7.1. Of cracks and the true line of thrust in the masonry arch
- 4.7.2. Masonry arch failures
- 4.7.3. maximum load principles of the ultimate load theory for masonry arches
- 4.7.4. safety of masonry arches
- 4.7.5. Analysis of masonry arch bridges
- 4.7.6. Heyman extends masonry arch theory
- 4.8. finite element method
- 4.9. studies of Holzer
- 4.10. On the epistemological status of masonry arch theories
- 4.10.1. Wedge theory
- 4.10.2. Collapse mechanism analysis and voussoir rotation theory
- 4.10.3. Line of thrust theory and elastic theory for masonry arches
- 4.10.4. Ultimate load theory for masonry arches as an object in historical theory of structures
- 4.10.5. finite element analysis of masonry arches
- 5.1. Retaining walls for fortifications
- 5.2. Earth pressure theory as an object of military engineering
- 5.2.1. In the beginning there was the inclined plane
- 5.2.1.1. Bullet
- 5.2.1.2. Gautier
- 5.2.1.3. Couplet
- 5.2.1.4. Further approaches
- 5.2.1.5. Friction reduces earth pressure
- 5.2.2. From inclined plane to wedge theory
- 5.2.3. Charles Augustin Coulomb
- 5.2.3.1. Manifestations of adhesion
- 5.2.3.2. Failure behaviour of masonry piers
- 5.2.3.3. transition to earth pressure theory
- 5.2.3.4. Active earth pressure
- 5.2.3.5. Passive earth pressure
- 5.2.3.6. Design
- 5.2.4. magazine for engineering officers
- 5.3. Modifications to Coulomb earth pressure theory
- Contents note continued: 5.3.1. trigonometrisation of earth pressure theory
- 5.3.1.1. Prony
- 5.3.1.2. Mayniel
- 5.3.1.3. Francais, Audoy and Navier
- 5.3.1.4. Martony de Koszegh
- 5.3.2. geometric way
- 5.3.2.1. Jean-Victor Poncelet
- 5.3.2.2. Hermann Scheffler's critiism of Poncelet
- 5.3.2.3. Karl Culmann
- 5.3.2.4. Georg Rebhann
- 5.3.2.5. Compelling contradictions
- 5.4. contribution of continuum mechanics
- 5.4.1. hydrostatic earth pressure model
- 5.4.2. new earth pressure theory
- 5.4.2.1. Carl Holtzmann
- 5.4.2.2. Rankine's stroke of genius
- 5.4.2.3. Emil Winkler
- 5.4.2.4. Otto Mohr
- 5.5. Earth pressure theory from 1875 to 1900
- 5.5.1. Coulomb or Rankine?
- 5.5.2. Earth pressure theory in the form of masonry arch theory
- 5.5.3. Earth pressure theory a la francaise
- 5.5.4. Kotter's mathematical earth pressure theory
- 5.6. Experimental earth pressure research
- 5.6.1. precursors of experimental earth pressure research
- 5.6.1.1. Cramer
- 5.6.1.2. Baker
- 5.6.1.3. Donath and Engels
- 5.6.2. great moment in subsoil research
- 5.6.3. Earth pressure tests at the testing institute for the statics of structures at Berlin Technical University
- 5.6.4. merry-go-round of discussions of errors
- 5.6.5. Swedish school of earthworks
- 5.6.6. emergence of soil mechanics
- 5.6.6.1. Three lines of development
- 5.6.6.2. disciplinary configuration of soil mechanics
- 5.6.6.3. contours of phenomenological earth pressure theory
- 5.7. Earth pressure theory in the discipline-formation period of geotechnical engineering
- 5.7.1. Terzaghi
- 5.7.2. Rendulic
- 5.7.3. Ohde
- 5.7.4. Errors and confusion
- 5.7.5. hasty reaction in print
- 5.7.6. Foundations + soil mechanics = geotechnical engineering
- 5.7.6.1. civil engineer as soldier
- 5.7.6.2. Addendum
- 5.8. Earth pressure theory in the consolidation period of geotechnical engineering
- 5.8.1. New subdisciplines in geotechnical engineering
- 5.8.2. Determining earth pressure in practical theory of structures
- 5.8.2.1. modified Culmann E line
- 5.8.2.2. New findings regarding passive earth pressure
- 5.9. Earth pressure theory in the integration period of geotechnical engineering
- 5.9.1. Computer-assisted earth pressure calculations
- 5.9.2. Geotechnical continuum models
- 5.9.3. art of estimating
- 5.9.4. history of geotechnical engineering as an object of construction history
- 6.1. What is the theory of strength of materials?
- 6.2. On the state of development of theory of structures and strength of materials in the Renaissance
- 6.3. Galileo's Dialogue
- 6.3.1. First day
- 6.3.2. Second day
- 6.4. Developments in strength of materials up to 1750
- 6.5. Civil engineering at the close of the 18th century
- 6.5.1. completion of beam theory
- 6.5.2. Franz Joseph Ritter von Gerstner
- 6.5.3. Introduction to structural engineering
- 6.5.3.1. Gerstner's analysis and synthesis of loadbearing systems
- 6.5.3.2. Gerstner's method of structural design
- 6.5.3.3. Einleitung in die statische Baukunst as a textbook for analysis
- 6.5.4. Four comments on the significance of Gerstner's Einleitung in die statische Baukunst for theory of structures
- 6.6. formation of a theory of structures: Eytelwein and Navier
- 6.6.1. Navier
- 6.6.2. Eytelwein
- 6.6.3. analysis of the continuous beam according to Eytelwein and Navier
- 6.6.3.1. continuous beam in Eytelwein's Statik fester Korper
- 6.6.3.2. continuous beam in Navier's Resume des Lecons
- 6.7. Adoption of Navier's analysis of the continuous beam
- 7.1. Clapeyron's contribution to the formation of the classical engineering sciences
- 7.1.1. Les polytechniciens: the fascinating revolutionary elan in post-revolution France
- 7.1.2. Clapeyron and Lame in St. Petersburg (1820-1831)
- 7.1.3. Clapeyron's formulation of the energy doctrine of the classical engineering sciences
- 7.1.4. Bridge-building and the theorem of three moments
- 7.2. completion of the practical beam theory
- 7.3. From graphical statics to graphical analysis
- 7.3.1. founding of graphical statics by Culmann
- 7.3.2. Two graphical integration machines
- 7.3.3. Rankine, Maxwell, Cremona and Bow
- 7.3.4. Differences between graphical statics and graphical analysis
- 7.3.5. breakthrough for graphical analysis
- 7.3.5.1. Graphical analysis of masonry vaults and domes
- 7.3.5.2. Graphical analysis in engineering works
- 7.4. classical phase of theory of structures
- 7.4.1. Winkler's contribution
- 7.4.1.1. elastic theory foundation to theory of structures
- 7.4.1.2. theory of the elastic arch as a foundation for bridge-building
- 7.4.2. beginnings of the force method
- 7.4.2.1. Contributions to the theory of statically indeterminate trussed frameworks
- 7.4.2.2. From the trussed framework theory to the general theory of trusses
- 7.4.3. Loadbearing structure as kinematic machine
- 7.4.3.1. Trussed framework as machine
- 7.4.3.2. theoretical kinematics of Reuleaux and the Dresden school of kinematics
- 7.4.3.3. Kinematic or energy doctrine in theory of structures?
- 7.4.3.4. Pyrrhic victory of the energy doctrine in theory of structures
- 7.5. Theory of structures at the transition from the discipline-formation to the consolidation period
- 7.5.1. Castigliano
- 7.5.2. fundamentals of classical theory of structures
- 7.5.3. Resumption of the dispute about the fundamentals of classical theory of structures
- 7.5.3.1. cause
- 7.5.3.2. dispute between the 'seconds'
- 7.5.3.3. dispute surrounding the validity of the theorems of Castigliano
- 7.5.4. validity of Castigliano's theorems
- 7.6. Lord Rayleigh's The Theory of Sound and Kirpitchev's fundamentals of classical theory of structures
- 7.6.1. Rayleigh coefficient and Ritz coefficient
- 7.6.2. Kirpitchev's congenial adaptation
- 7.7. Berlin school of theory of structures
- 7.7.1. notion of the scientific school
- 7.7.2. completion of classical theory of structures by Muller-Breslau
- 7.7.3. Classical theory of structures usurps engineering design
- 7.7.4. Miiller-Breslau's students
- 7.7.4.1. August Hertwig
- 7.7.4.2. August Hertwig's successors
- 8.1. Torsion theory in iron construction and theory of structures from 1850 to 1900
- 8.1.1. Saint-Venant's torsion theory
- 8.1.2. torsion problem in Weisbach's Principles
- 8.1.3. Bach's torsion tests
- 8.1.4. adoption of torsion theory in classical theory of structures
- 8.2. Crane-building at the focus of mechanical and electrical engineering, steel construction and theory of structures
- 8.2.1. Rudolph Bredt - known yet unknown
- 8.2.2. Ludwig Stuckenholz company in Wetter a.d. Ruhr
- 8.2.2.1. Bredt's rise to become the master of crane-building
- 8.2.2.2. Crane types of the Ludwig Stuckenholz company
- 8.2.3. Bredt's scientific-technical publications
- 8.2.3.1. Bredt's testing machine
- 8.2.3.2. principle of separating the functions in crane-building
- 8.2.3.3. Crane hooks
- 8.2.3.4. Struts
- 8.2.3.5. Foundation anchors
- 8.2.3.6. Pressure cylinders
- 8.2.3.7. Curved bars
- 8.2.3.8. Elastic theory
- 8.2.3.9. teaching of engineers
- 8.2.3.10. Torsion theory
- 8.2.4. Heavy engineering adopts classical theory of structures
- 8.3. Torsion theory in the consolidation period of theory of structures (1900-1950)
- 8.3.1. introduction of an engineering science concept: the torsion constant
- 8.3.2. discovery of the shear centre
- 8.3.2.1. Carl Bach
- 8.3.2.2. Louis Potterat
- 8.3.2.3. Adolf Eggenschwyler
- 8.3.2.4. Robert Maillart
- 8.3.2.5. Rearguard actions in the debate surrounding the shear centre
- 8.3.3. Torsion theory in structural steelwork from 1925 to 1950
- 8.3.4. Summary
- 8.4. Searching for the true buckling theory in steel construction
- 8.4.1. buckling tests of the DStV
- 8.4.1.1. world's largest testing machine
- 8.4.1.2. perfect buckling theory on the basis of elastic theory
- 8.4.2. German State Railways and the joint technical-scientific work in structural steelwork
- 8.4.2.1. Standardising the codes of practice for structural steelwork
- 8.4.2.2. founding of the German Committee for Structural Steelwork (DASt)
- 8.4.3. Excursion: the "Olympic Games" for structural engineering
- 8.4.4. paradigm change in buckling theory
- 8.4.5. standardisation of the new buckling theory in the German stability standard DIN 4114
- 8.5. Steelwork and steelwork science from 1925 to 1975
- 8.5.1. From the one-dimensional to the two-dimensional structure
- 8.5.1.1. theory of the effective width
- 8.5.1.2. Constructional innovations in German bridge-building during the 1930s
- 8.5.1.3. theory of the beam grid
- 8.5.1.4. orthotropic plate as a patent
- 8.5.1.5. Structural steelwork borrows from reinforced concrete: Huber's plate theory
- 8.5.1.6. Guyon-Massonnet method
- 8.5.1.7. theory dynamic in steelwork science in the 1950s and 1960s
- 8.5.2. rise of steel-concrete composite construction
- 8.5.2.1. Composite columns
- 8.5.2.2. Composite beams
- 8.5.2.3. Composite bridges
- 8.5.3. Lightweight steel construction
- 8.5.4. Steel and glass - best friends
- 8.6. Eccentric orbits - the disappearance of the centre
- 9.1. emergence of the theory of spatial frameworks
- 9.1.1. original dome to the Reichstag (German parliament building)
- 9.1.2. Foundation of the theory of spatial frameworks by August Foppl
- Contents note continued: 9.1.3. Integration of spatial framework theory into classical theory of structures
- 9.2. Spatial frameworks in an age of technical reproducibility
- 9.2.1. Alexander Graham Bell
- 9.2.2. Vladimir Grigorievich Shukhov
- 9.2.3. Walther Bauersfeld and Franz Dischinger
- 9.2.4. Richard Buckminster Fuller
- 9.2.5. Max Mengeringhausen
- 9.3. Dialectic synthesis of individual structural composition and large-scale production
- 9.3.1. MERO system and the composition law for spatial frameworks
- 9.3.2. Spatial frameworks and computers
- 10.1. first design methods in reinforced concrete construction
- 10.1.1. beginnings of reinforced concrete construction
- 10.1.2. From the German Monier patent to the Monier-Broschure
- 10.1.3. Monier-Broschure
- 10.1.3.1. new type of structural-constructional quality offered by the Monier system
- 10.1.3.2. applications of the Monier system
- 10.1.3.3. engineering science principles of the Monier system
- 10.2. Reinforced concrete revolutionises the building industry
- 10.2.1. fate of the Monier system
- 10.2.2. end of the system period: steel + concrete = reinforced concrete
- 10.2.2.1. Napoleon of reinforced concrete: Francois Hennebique
- 10.2.2.2. founding father of rationalism in reinforced concrete: Paul Christophe
- 10.2.2.3. completion of the triad
- 10.3. Theory of structures and reinforced concrete
- 10.3.1. New types of loadbearing structure in reinforced concrete
- 10.3.1.1. Reinforced concrete gains emancipation from structural steelwork: the rigid frame
- 10.3.1.2. Reinforced concrete takes its first steps into the second dimension: out-of-plane-loaded structures
- 10.3.1.3. first synthesis
- 10.3.2. structural-constructional self-discovery of reinforced concrete
- 10.3.2.1. In-plane-loaded elements and folded plates
- 10.3.2.2. Reinforced concrete shells
- 10.3.2.3. second synthesis
- 10.3.2.4. Of the power of formalised theory
- 10.4. Prestressed concrete: "Une revolution dans Part de bate (Freyssinet)
- 10.4.1. Leonhardt's Prestressed Concrete. Design and Construction
- 10.4.2. first prestressed concrete standard
- 10.4.3. Prestressed concrete standards in the GDR
- 10.4.4. unstoppable rise of prestressed concrete reflected in Beton- and Stahlbetonbau
- 10.5. Paradigm change in reinforced concrete design in the Federal Republic of Germany, too
- 10.6. Revealing the invisible: reinforced concrete design with truss models
- 10.6.1. trussed framework model of Francois Hennebique
- 10.6.2. trussed framework model of Emil Morsch
- 10.6.3. picture is worth 1,000 words: stress patterns for plane plate and shell structures
- 10.6.4. concept of the truss model: steps towards holistic design in reinforced concrete
- 11.1. relationship between text, image and symbol in theory of structures
- 11.1.1. historical stages in the idea of formalisation
- 11.1.2. structural engineer - a manipulator of symbols?
- 11.2. development of the displacement method
- 11.2.1. contribution of the mathematical elastic theory
- 11.2.1.1. Elimination of stresses or displacements? That is the question.
- 11.2.1.2. element from the ideal artefacts of mathematical elastic theory: the elastic truss system
- 11.2.2. From pin-jointed trussed framework to rigid-jointed frame
- 11.2.2.1. real engineering artefact: the iron trussed framework with riveted joints
- 11.2.2.2. theory of secondary stresses
- 11.2.3. From trussed framework to rigid frame
- 11.2.3.1. Thinking in deformations
- 11.2.3.2. Vierendeel girder
- 11.2.4. displacement method gains emancipation from trussed framework theory
- 11.2.4.1. Axel Bendixsen
- 11.2.4.2. George Alfred Maney
- 11.2.4.3. Willy Gehler
- 11.2.4.4. Asger Ostenfeld
- 11.2.4.5. Peter L. Pasternak
- 11.2.4.6. Ludwig Mann
- 11.2.5. displacement method during the invention phase of theory of structures
- 11.3. rationalisation movement in theory of structures
- 11.3.1. prescriptive use of symbols in theory of structures
- 11.3.2. Rationalisation of statically indeterminate calculations
- 11.3.2.1. Statically indeterminate main systems
- 11.3.2.2. Orthogonalisation methods
- 11.3.2.3. Specific methods from the theory of sets of linear equations
- 11.3.2.4. Structural iteration methods
- 11.3.3. dual nature of theory of structures
- 11.4. Konrad Zuse and the automation of structural calculations
- 11.4.1. Schematisation of statically indeterminate calculations
- 11.4.1.1. Schematic calculation procedure
- 11.4.1.2. first step to the computing plan
- 11.4.2. "engineer's calculating machine"
- 11.5. Matrix formulation
- 11.5.1. Matrix formulation in mathematics and theoretical physics
- 11.5.2. Tensor and matrix algebra in the fundamental engineering science disciplines
- 11.5.3. integration of matrix formulation into engineering mathematics
- 11.5.4. structural analysis matrix method: the carry-over method
- 12.1. "The computer shapes the theory" (Argyris) - the historical roots of the finite element method
- 12.1.1. Truss models for elastic continua
- 12.1.1.1. Kirsch's space truss model
- 12.1.1.2. Trussed framework models for elastic plates
- 12.1.1.3. origin of the gridwork method
- 12.1.1.4. First computer-aided structural analyses in the automotive industry
- 12.1.2. Modularisation and discretisation of aircraft structures
- 12.1.2.1. From lattice box girder to cell tube and shear field layout
- 12.1.2.2. High-speed aerodynamics, discretisation of the cell tube and matrix theory
- 12.2. matrix algebra reformulation of structural mechanics
- 12.2.1. founding of modern structural mechanics
- 12.2.2. first steps towards computational statics in Europe
- 12.2.2.1. Switzerland
- 12.2.2.2. United Kingdom
- 12.2.2.3. Federal Republic of Germany
- 12.3. FEM - formation of a general technology of engineering science theory
- 12.3.1. classical publication of a non-classical method
- 12.3.2. heuristic potential of FEM: the direct stiffness method
- 12.4. founding of FEM through variational principles
- 12.4.1. variational principle of Dirichlet and Green
- 12.4.1.1. simple example: the axially loaded elastic extensible bar
- 12.4.1.2. Gottingen school around Felix Klein
- 12.4.2. first stage of the synthesis: the canonic variational principle of Hellinger and Prange
- 12.4.2.1. Prange's habilitation thesis
- 12.4.2.2. In the Hades of amnesia
- 12.4.2.3. First steps in recollection
- 12.4.2.4. Eric Reissner's contribution
- 12.4.3. second stage of the synthesis: the variational principle of Fraeijs de Veubeke, Hu and Washizu
- 12.4.4. variational formulation of FEM
- 12.4.5. break with symmetry with serious consequences
- 12.5. Back to the roots
- 12.5.1. Priority for mathematical reasoning
- 12.5.2. Influence functions
- 12.5.3. Influence functions and FEM - an example
- 12.5.4. Practical benefits of influence functions
- 12.5.5. fundamentals of theory of structures
- 12.6. Computational mechanics
- 13.1. scientific controversy
- 13.2. Thirteen disputes
- 13.2.1. Galileo's Dialogo
- 13.2.2. Galileo's Discorsi
- 13.2.3. philosophical dispute about the true measure of force
- 13.2.4. dispute about the principle of least action
- 13.2.5. dome of St. Peter's in the dispute between theorists and practitioners
- 13.2.6. Discontinuum or continuum?
- 13.2.7. Graphical statics vs. graphical analysis, or the defence of pure theory
- 13.2.8. Animosity creates two schools: Mohr vs. Muller-Breslau
- 13.2.9. war of positions
- 13.2.10. Until death do us part: Fillunger vs. Terzaghi
- 13.2.11. "In principle, yes...": the dispute about principles
- 13.2.12. Elastic or plastic? That is the question.
- 13.2.13. importance of the classical earth pressure theory
- 13.3. Resume
- 14.1. Theory of structures and aesthetics
- 14.1.1. schism of architecture
- 14.1.2. Beauty and utility in architecture - a utopia?
- 14.1.3. Alfred Gotthold Meyer's Eisenbauten. Ihre Geschichte and Asthetik
- 14.1.4. aesthetics in the dialectic between building and calculation
- 14.2. Historical engineering science - historical theory of structures
- 14.2.1. Saint-Venant's historical elastic theory
- 14.2.2. Historical masonry arch theory
- 14.2.3. Historico-genetic teaching of theory of structures
- 14.2.3.1. historico-logical longitudinal analysis
- 14.2.3.2. historico-logical cross-sectional analysis
- 14.2.3.3. historico-logical comparison
- 14.2.3.4. Content, aims, means and characteristics of the historico-genetic teaching of theory of structures
- 14.2.4. Computer-assisted graphical analysis.