Skeleton Structures: Especially in Their Application to the Building of Steel & Iron BridgesVan Nostrand, 1867 - 96 páginas |
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Página 15
... become larger towards the points a and c , and will be smallest at b . As the pressure is distributed over the whole touching - surface of each section , the pressure per unit will be largest where the surface is smallest . This is the ...
... become larger towards the points a and c , and will be smallest at b . As the pressure is distributed over the whole touching - surface of each section , the pressure per unit will be largest where the surface is smallest . This is the ...
Página 21
... that p , according to formula ( 1 ) , becomes , in reality , very small . By applying a com- pressive instead of a tensile force , we have , instead of prolongation , a shortening ; and instead of the strain SKELETON STRUCTURES . 21.
... that p , according to formula ( 1 ) , becomes , in reality , very small . By applying a com- pressive instead of a tensile force , we have , instead of prolongation , a shortening ; and instead of the strain SKELETON STRUCTURES . 21.
Página 23
... the previous example , also the strains of all bars become slightly altered , and there- * The elasticity of material may also be called such a force . fore the displacings will continue so long as the points SKELETON STRUCTURES . 23.
... the previous example , also the strains of all bars become slightly altered , and there- * The elasticity of material may also be called such a force . fore the displacings will continue so long as the points SKELETON STRUCTURES . 23.
Página 24
... become displaced . These displacings expand and contract the different bars , and cause such strains as mutually preserve equilibrium . To deter- mine these strains we will use the above rule , which may be explained as follows : In ...
... become displaced . These displacings expand and contract the different bars , and cause such strains as mutually preserve equilibrium . To deter- mine these strains we will use the above rule , which may be explained as follows : In ...
Página 27
... become nought . A glance at Fig . 9 will show this plainly , the diagonal R ' in the rectangle can only be equal nought , if both sides U and V disappear . This leads us to the conclusion : Fig . 9 . R U ' That in each connexion - point ...
... become nought . A glance at Fig . 9 will show this plainly , the diagonal R ' in the rectangle can only be equal nought , if both sides U and V disappear . This leads us to the conclusion : Fig . 9 . R U ' That in each connexion - point ...
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Términos y frases comunes
75 cents admissible strain Artillery ascertain beam bolt Britannia Bridge calculation Captain carry Cavalry compression connection-points construction Corps of Engineers dead weight deflection determined diagonal displacings engravings equal equations exactly example experiments exposed feet span firstly fixed formula GILLMORE gives greatest GUNNERY heat Hypsometry Illustrated increase Infantry instruction introducing iron length limit of elasticity load per running Major-General Manual Maps material Merrimack River Military Academy modulus of elasticity Naval octavo Officers OLAUS HENRICI Ordnance parallelogram of forces plates Practical pressure prolongation proportion q tons REBELLION Rifle rigidity roadway running foot single line Skeleton Bridge skeleton girder Skeleton Structures Steam steel strains caused superfluous bars suspended bridges tables TACTICS temperature tensile force tension tion tons per inch tons per running Treatise trussed bridges U. S. Army U. S. Navy United v₁ Volunteers West Point whilst whole
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