Skeleton Structures: Especially in Their Application to the Building of Steel & Iron BridgesVan Nostrand, 1867 - 96 páginas |
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Página 8
... less material in structures where the single members are exposed only to tension and com- pression . Nearly all beams act according to their relative strength , and we cannot prevent them being bent in their whole length ; and if we ...
... less material in structures where the single members are exposed only to tension and com- pression . Nearly all beams act according to their relative strength , and we cannot prevent them being bent in their whole length ; and if we ...
Página 14
... less can a larger structure , being a combination of many mem- bers . It is , therefore , an essential condition for the permanent strength and solidity of the whole , that the bolts as well as the holes fit exactly ; and more care can ...
... less can a larger structure , being a combination of many mem- bers . It is , therefore , an essential condition for the permanent strength and solidity of the whole , that the bolts as well as the holes fit exactly ; and more care can ...
Página 17
... less , the area a c must be larger . This section , a c , represents the longi- tudinal section of the bolt B ( its length being equal to the thickness of the bar ) , and the area is therefore = dp , when d is the diameter of the bolt ...
... less , the area a c must be larger . This section , a c , represents the longi- tudinal section of the bolt B ( its length being equal to the thickness of the bar ) , and the area is therefore = dp , when d is the diameter of the bolt ...
Página 20
... less homo- geneous the material is . Thus we generally take as the admissible strain for iron , 4-6 tons per square inch , and for steel 8-12.5 tons , according to the nature of the structure and the material applied . This number will ...
... less homo- geneous the material is . Thus we generally take as the admissible strain for iron , 4-6 tons per square inch , and for steel 8-12.5 tons , according to the nature of the structure and the material applied . This number will ...
Página 21
... less . We must now find the relation between the pro- longation and the strain ; for when we have expressed this by a mathematical formula , we can calculate the one if we know the other . By direct trials it is ascer- tained that the ...
... less . We must now find the relation between the pro- longation and the strain ; for when we have expressed this by a mathematical formula , we can calculate the one if we know the other . By direct trials it is ascer- tained that the ...
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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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