A Treatise on the Strength of Bridges and Roofs: With Practical Applications and Examples for the Use of Engineers and StudentsD. Van Nostrand, 1873 - 346 páginas |
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Términos y frases comunes
abutment side added to Eq centre of gravity centre side compound truss Compres constant-load equations constants in Eq counterbraces depth double truss end braces farther abutment feet following table form the following full load full panel greatest vertical strain half loaded half the truss horizontal chord horizontal component horizontal equations horizontal strain inclined braces left abutment load covers load extends longitudinal strain lower chord maximum vertical strains ment moving load number of panels obtain odd number panel end panel length panel point distant parabola partial load points of Simple reaction right abutment secants segment Simple Truss sion Strains in Tons Substituting the values table of compression table of strains Taking moments triple truss TRUSS CONTAINING truss of Fig uniform unloaded abutment upper chord vertical component vertical distance vertical equation wx H wx wx гор гора горх
Pasajes populares
Página 339 - Of rectangular pillars of timber it was proved experimentally that the pillar of greatest strength, where the length and quantity of material is the same, is a square.
Página 5 - If three forces acting at one point balance ; three lines parallel to their directions •will form a triangle whose sides ivill be proportional to the forces.
Página 345 - Solution valid for large values of the ratio between the thickness of the plate and the diameter of the crack has been obtained.
Página 245 - L, the longitudinal strain, is now in the line of the arc member, instead of in the line of the tangent to the curve at the point x.