Materials and Construction: A Theoretical and Practical Treatise on the Strains, Designing, and Erection of Works of ConstructionC. Lockwood and Company, 1881 - 249 páginas |
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Página 9
... gravity by causing a body to lift and revolve about one of its edges until the centre of gravity falls without such edge , when the mass will altogether upset ; in the second , the resistance to be overcome is that of the friction of B ...
... gravity by causing a body to lift and revolve about one of its edges until the centre of gravity falls without such edge , when the mass will altogether upset ; in the second , the resistance to be overcome is that of the friction of B ...
Página 18
... centre of gravity of the surface . The centre of gravity is the point at which we may con- sider the whole weight or effect of the surface or body as concentrated ; and if any figure is freely suspended from a point , the centre of gravity ...
... centre of gravity of the surface . The centre of gravity is the point at which we may con- sider the whole weight or effect of the surface or body as concentrated ; and if any figure is freely suspended from a point , the centre of gravity ...
Página 19
... centre of gravity must be somewhere in the line thus drawn . Now suspend ( as at 2 ) the figure by the hole at c , again apply the plumb line d e , and where it intersects the line already drawn will be the centre of gravity g . b d a ...
... centre of gravity must be somewhere in the line thus drawn . Now suspend ( as at 2 ) the figure by the hole at c , again apply the plumb line d e , and where it intersects the line already drawn will be the centre of gravity g . b d a ...
Página 20
... centre of gravity of the whole figure from the axis fg . This term , centre of gravity , of course applies strictly to the centre of action of the force of gravitation , but custom has caused it to be used in speaking of the centres of ...
... centre of gravity of the whole figure from the axis fg . This term , centre of gravity , of course applies strictly to the centre of action of the force of gravitation , but custom has caused it to be used in speaking of the centres of ...
Página 23
... centre of gravity found by bisecting two sides and proceeding as detailed on a previous page , it will be found that the centre of gravity on a line drawn from the centre of its base to its apex is at one- third of its length from the ...
... centre of gravity found by bisecting two sides and proceeding as detailed on a previous page , it will be found that the centre of gravity on a line drawn from the centre of its base to its apex is at one- third of its length from the ...
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Términos y frases comunes
abutment acting angle irons angle of repose arch beam bolts bottom flange bracing bridge calculated carried cast iron centre of gravity cloth boards column complete the parallelogram compression cross girders crown cubic foot curve deflection depth determined diagonal diameter direction distance distributing girder Edition Engineer equal factor of safety feet force formula friction hence Illustrations inch thick inclined bar joint length lineal foot load main girder masonry material maximum strain modulus of elasticity molecules multiplied neutral axis numerous parallelogram of forces pier plates practical pressure radius ratio right angles rivet area rivet holes rivets road girder SCOTT BURN sectional area sectional square inch shearing shearing strain side span strength stress structure surface taken tensile tension timber tion top flange Treatise triangle voussoir weight wrought iron
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