The Theory of Structures |
Contents
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Other editions - View all
Common terms and phrases
angles arch assumed bending bending moment bottom chord centre of gravity column compression computed concentrated load considered cover plate cross-section CURVE OF MOMENTS CURVE OF SHEARS dead load dead stresses deflection determined diagonal diagram distance equation equilibrium flange floor beams force polygon formula formula 17 funicular polygon given hence horizontal component index stresses influence line intersection L₁ L₂ loads for maximum locomotive excess masonry maximum shear maximum stress method of moments moment of inertia Move up load neutral axis obtained occur outer forces panel loads panel point parabola plane position of loads pressure PROB problem Rankine's method resultant rivets shear in panel shown in Fig span splice sq.ins statically statically determined stress in bar stresses due stringer structure surface Swing Bridges tension thickness tion tons top chord truss shown U₁ uniform live load uniform load vertical component Warren Truss
Popular passages
Page 456 - It is sometimes simpler to determine analytically the position of the point of application of the resultant of the weight of the filling and the arch ring rather than to reduce to common units.
Page 34 - Since the algebraic sum of the moments of all the forces about any point equals zero...
Page 26 - All spans shall be designed for a lateral force on the loaded chord of 200 Ib. per linear foot plus 10 per cent. of the specified train load on one track, and 200 Ib. per linear foot on the unloaded chord; these forces being considered as moving.
Page 27 - Ibs. per linear ft. of structure applied 7 ft. above the rail for assumed wind force on train, when the structure is either fully loaded or loaded on either track with empty cars assumed to weigh 1,200 Ibs. per linear ft., whichever gives the larger stress.
Page 305 - J-in. rivets, 2} in. for f-in. rivets, and 2 in. if |-in. rivets are used. The thickness shall not be less than one-fortieth of the distance between end rivets for single lattice, and one-sixtieth for double lattice. Shapes of equivalent strength may be used. 48.
Page 1 - Structure" means that which is built or constructed, an edifice or building of any kind, or any piece of work artificially built up or composed of parts joined together in some definite manner.
Page 307 - The. pitch of rivets at the ends of built compression members shall not exceed four diameters of the rivets, for a length equal to one and one-half times the maximum width of member.
Page 306 - The inclination of lattice bars with the axis of the member shall be not less than 45 degrees, and when the distance between rivet lines in the flanges is more than 15 in., if single rivet bar is used, the lattice shall be double and riveted at the intersection.
Page 419 - An excentric load upon a column shall be considered to affect excentrically only the length of column extending to the next point below at which the column is held securely in the direction of the excentricity. If a piece is exposed to tension and compression at different times, it shall be proportioned to resist the maximum of each kind, but the unit stresses shall be less than those used for stress of one kind, depending upon the ratio and the relative frequence of the two maxima. Net sections...
Page 19 - For the trusses or girders, 80 Ib per sq ft of floor surface for spans of 75 'ft or less, and 50 Ib for spans of 200 ft or more, and proportionally for intermediate spans; to be used as described under (a).