Skeleton Structures: Especially in Their Application to the Building of Steel & Iron BridgesVan Nostrand, 1867 - 96 páginas |
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Página 45
... deflection at the load , P. As now the strains were expressed above by these displacings , we find by ( 9 ) and ( 12 ) So - 1 S0 / 1 / S11 = 0.8548 P , 0.4888 P , = 0.2280 P. This shows that the strains in the single bars are very ...
... deflection at the load , P. As now the strains were expressed above by these displacings , we find by ( 9 ) and ( 12 ) So - 1 S0 / 1 / S11 = 0.8548 P , 0.4888 P , = 0.2280 P. This shows that the strains in the single bars are very ...
Página 56
... deflection in proportion to the span . This deflection is the only measure we have of the rigidity in a bridge , until we solve the problem to ascertain the oscillation of a bridge whilst a train is passing , or until a bridge has been ...
... deflection in proportion to the span . This deflection is the only measure we have of the rigidity in a bridge , until we solve the problem to ascertain the oscillation of a bridge whilst a train is passing , or until a bridge has been ...
Página 57
... deflection are exactly observed , are , I am convinced , made only in very few bridges ; as in works otherwise so rich in information about bridges , we find seldom data of the deflection for various loads . Both weight and deflection ...
... deflection are exactly observed , are , I am convinced , made only in very few bridges ; as in works otherwise so rich in information about bridges , we find seldom data of the deflection for various loads . Both weight and deflection ...
Página 61
... deflection is of that one shown . Fig . 16 gives for the same bridge and the same material the strains which occur when the tempera- ture rises by 30 ° Centigrade ( = 54 ° Fahrenheit ) . By this , all strains which are caused by dead ...
... deflection is of that one shown . Fig . 16 gives for the same bridge and the same material the strains which occur when the tempera- ture rises by 30 ° Centigrade ( = 54 ° Fahrenheit ) . By this , all strains which are caused by dead ...
Página 62
... deflection , so that the girder can never deflect below the horizontal line . As now the deflection by heat is to be distinguished from that one caused by the load , I have not shown any deflection in Fig . 17. The deflection by heat is ...
... deflection , so that the girder can never deflect below the horizontal line . As now the deflection by heat is to be distinguished from that one caused by the load , I have not shown any deflection in Fig . 17. The deflection by heat is ...
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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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