Skeleton Structures: Especially in Their Application to the Building of Steel & Iron BridgesVan Nostrand, 1867 - 96 páginas |
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Página 27
... : Fig . 9 . R U ' That in each connexion - point both components of the resulting force ( considered in reference to any two vertical axes ) must disappear . Thus we get from the one condition , that the SKELETON STRUCTURES . 27.
... : Fig . 9 . R U ' That in each connexion - point both components of the resulting force ( considered in reference to any two vertical axes ) must disappear . Thus we get from the one condition , that the SKELETON STRUCTURES . 27.
Página 56
... considered in detail . Two points of comparison with other bridges pre- sent themselves : firstly , the weight of the girder in proportion to the greatest load which it can carry , upon which depends principally the cost of the ...
... considered in detail . Two points of comparison with other bridges pre- sent themselves : firstly , the weight of the girder in proportion to the greatest load which it can carry , upon which depends principally the cost of the ...
Página 57
... considered , page 10 , & c . ) . I shall enter now upon a closer examination of the suspended and trussed bridges ; and principally the simplest of these ( see Fig . 1 , Plate I. ) , where it will be observed that the trussed girder is ...
... considered , page 10 , & c . ) . I shall enter now upon a closer examination of the suspended and trussed bridges ; and principally the simplest of these ( see Fig . 1 , Plate I. ) , where it will be observed that the trussed girder is ...
Página 61
... considered the most unfavorable way of connection - viz . , that the ends of the girder are fixed absolutely in the piers . In practice , these strains will be considerably less . In Fig . 16 the change of form is also indicated by ...
... considered the most unfavorable way of connection - viz . , that the ends of the girder are fixed absolutely in the piers . In practice , these strains will be considerably less . In Fig . 16 the change of form is also indicated by ...
Página 62
... considered as a measure for the rigidity of the structure ; and this rigidity does not suffer by the action and deflection caused by heat . In regard to Fig . 16 , it might be mentioned that a decrease in temperature of 30 ° Centigrade ...
... considered as a measure for the rigidity of the structure ; and this rigidity does not suffer by the action and deflection caused by heat . In regard to Fig . 16 , it might be mentioned that a decrease in temperature of 30 ° Centigrade ...
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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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