The Elements of Graphical Statics and Their Application to Framed Structures: With Numerous Practical Examples of Cranes--bridge, Roof and Suspension Trusses--braced and Stone Arches--pivot and Draw Spans--continuous Girders, &c., Together with the Best Methods of Calculation, and Containing Also New and Practical Formulae for the Pivot Or Draw Span--braced Arch--continuous Girder, Etc, Band 1J. Wiley and son, 1875 - 404 Seiten |
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Andere Ausgaben - Alle anzeigen
Häufige Begriffe und Wortgruppen
abutment analytical angle apex axis B₁ beam C₁ C₂ calculation central curve centre of gravity Chap compression concentrated load construction continuous girder corresponding cross-section crown Culmann dead load deflection determine diagonal diagram direction easily end spans equal equation equilibrium polygon fixed points flange force polygon forces acting formulæ give given graphical method graphical statics hence horizontal hyperbola inertia inflection point intersection l₁ left support length live load loaded span M₁ M₂ maximum method of moments moment of inertia moments negative number of spans obtain ordinates outer forces P₂ parabola pass point of application points of inflection pole distance position practical pressure line R₁ radius of gyration reactions resultant S₁ S₂ shearing force side simple sin² tangent tension tion tons triangle truss uniform load V₁ vertical weight zero
Beliebte Passagen
Seite vi - Und nun fahre hin, gern hätte ich dich zum Fundament einer auf wissenschaftlicherer Basis gegründeten Ingenieurkunde gemacht, allein kaum darf ich die Hoffnung hegen , so viel Kraft in mir zu finden , um das Ganze dieses umfangreichen Faches umzuarbeiten: das ist ein Werk, das mir vor Augen schwebt, wie einer jener alten mittelalterlichen Dome sich vor dem Kunstler erhob, der ihn entwarf und der der Hoffnung sich nicht hingeben konnte, ihn je in seiner Vollendung zu schauen.
Seite 124 - They can be easily found by finding the values of x which make the expression for the moments zero. Thus for a beam fixed at one end and supported at the other, uniform load, the inflection point is at a distance from the fixed end of x = £ the length.
Seite 199 - ... that a partial solution of the problem by mathematical calculation is attended with considerable difficulty, and that a complete solution for the bending moment and shearing force at every section, under moving, partial and irregular loads, taxes the powers of the best mathematicians and is well nigh impossible, on account of the complexity of the formula;, so far as any practical application of them by the engineer is concerned.
Seite 15 - Hence, if a number of forces lying in the same plane and » having a common point of application...
Seite 100 - Hence, if any pressures act in a plane, the sum of their moments, with respect to any point in that plane, will equal the moment of their resultant with respect to that point. A little consideration will show that if the pressures reduce to a couple, the moment of the couple will equal the sum of the moments of the several pressures. Of course, if the point is taken in the direction of the resultant...
Seite 9 - The other verticals, as well as the diagonals and the segments of the main tie, are in tension. stresses have been calculated for a wind striking the roof horizontally. The load at each joint may be taken to be equal to the pressure due to the wind striking a surface whose area is equal to that portion of the roof supported by one bay of the rafter, inclined at the same angle as the tangent to the rib at the joint. The area corresponding to each bay of the rafter may be taken in this case at 10 x...
Seite 241 - P, and the r + ith support is given by (4), and the tangent of the angle which the curve makes with the horizontal is given by (3 a). If in...
Seite xlvi - Most, Ueber eine allgemeine Methode, geometrisch den Schwerpunkt beliebiger Polygone und Polyeder zu bestimmen.
Seite 365 - The bending moment at any Imaginary transverse section of a beam Is equal to the algebraic sum of the moments of all the forces to either side of the section. bending of strata (Geol.).