The Design of Highway Bridges of Steel, Timber and ConcreteMcGraw-Hill book Company, Incorporated, 1920 - 548 páginas |
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Página ix
... Distribution of Concentrated Loads ..... 120 Width of Roadway . 113 Concrete Floor Slabs ..... 120 Loads ...... 114 Plank Floor on Steel Stringers ... 121 Weights of Bridges . 114 Floor Stringers and Floorbeams . 121 Weights of Steel ...
... Distribution of Concentrated Loads ..... 120 Width of Roadway . 113 Concrete Floor Slabs ..... 120 Loads ...... 114 Plank Floor on Steel Stringers ... 121 Weights of Bridges . 114 Floor Stringers and Floorbeams . 121 Weights of Steel ...
Página xiv
... Distribution of Loads through Fill . 415 Graphic Solution . . 403 Allowance for Temperature .. 415 Temperature Stresses .. 405 Arch Loading .... 416 Stresses in an Arch Without Hinges .. 405 Division of Arch Ring .. 416 Algebraic ...
... Distribution of Loads through Fill . 415 Graphic Solution . . 403 Allowance for Temperature .. 415 Temperature Stresses .. 405 Arch Loading .... 416 Stresses in an Arch Without Hinges .. 405 Division of Arch Ring .. 416 Algebraic ...
Página 23
... distributed over the cross - section of the beam , and the shearing stress will be equal to the shear S1 divided by the area of the beam . The actual shearing stress in the beam must be less than the allowable shearing stress . Tensile ...
... distributed over the cross - section of the beam , and the shearing stress will be equal to the shear S1 divided by the area of the beam . The actual shearing stress in the beam must be less than the allowable shearing stress . Tensile ...
Página 34
... distributed train load . The typical loading for Cooper's Class E 40 is shown in Fig . 3 , Chapter IX . The loads on the drivers in thousands of pounds and the uniform train load in hundreds of pounds are the same as the class number ...
... distributed train load . The typical loading for Cooper's Class E 40 is shown in Fig . 3 , Chapter IX . The loads on the drivers in thousands of pounds and the uniform train load in hundreds of pounds are the same as the class number ...
Página 37
... distribution of the loads will not be changed , and M + dM = P1 ( yı — dy1 ) + P2 ( y2 + dy2 ) Subtracting ( 1 ) from ( 2 ) and placing dM = o , we have But dyi = dx tan a1 = dM dx ( L - = - dM = = - ( 2 ) = 0 ( 3 ) dx tan a2 = dx.a / L ...
... distribution of the loads will not be changed , and M + dM = P1 ( yı — dy1 ) + P2 ( y2 + dy2 ) Subtracting ( 1 ) from ( 2 ) and placing dM = o , we have But dyi = dx tan a1 = dM dx ( L - = - dM = = - ( 2 ) = 0 ( 3 ) dx tan a2 = dx.a / L ...
Otras ediciones - Ver todas
The Design of Highway Bridges of Steel, Timber and Concrete (Classic Reprint) Milo Smith Ketchum Sin vista previa disponible - 2017 |
The Design of Highway Bridges of Steel, Timber and Concrete Milo Smith Ketchum Sin vista previa disponible - 2022 |
Términos y frases comunes
abutment algebraic resolution AMERICAN BRIDGE COMPANY angles axles bars beam beam bridges bending bending moment bolts bracing calculating the stresses chord stresses coefficients compression concentrated load concrete floor culverts dead load stresses depth designed diagonal diameter end-post feet field rivets flange floorbeams foot per truss force polygon given in Fig graphic resolution gusset plate horizontal I-beams inches influence diagram Iowa Highway Commission joists lineal foot linseed oil live load stresses load chord low truss lower chord maximum and minimum maximum shear moment of inertia piles plank plate girder plate girder bridge portal posts Pratt truss Problem.-Given R₁ reinforced concrete roadway roller Scale of truss shown in Fig spaced span specifications spiking strips splice Steel Highway Bridges stringers tension thickness timber tons top chord truss bridges truss highway bridges unit stress vertical Warren truss wearing surface weight wheel width wind load
Pasajes populares
Página 429 - ... instrument; that he knows the seal of said corporation; that the seal affixed to said instrument is such corporate seal ; that it was so affixed by order of the board of directors of said corporation, and that he signed his name thereto by like order.
Página 473 - When general reaming is required it shall be done after the pieces forming one built member are assembled and firmly bolted together. If necessary to take the pieces apart for shipping and handling, the respective pieces reamed together shall be so marked that they may be reassembled in the same position in the final setting up. No interchange of reamed parts will be allowed.
Página 429 - On the day of in the year , before me personally came to me known, who, being by me duly sworn, did depose and say that he resided in...
Página 163 - If splice plates are not in direct contact with the parts which they connect, rivets shall be used on each side of the joint in excess of the number required in the case of direct contact to the extent of two extra lines for each intervening plate.
Página 290 - T-beams shall not exceed one-fourth of the span length of the beam, and its overhanging width on either side of the web shall not exceed eight times the thickness of the slab nor one-half the clear distance to the next beam.
Página 232 - Combined Stresses. — Members subject to both axial and bending stresses shall be proportioned so that the combined fiber stresses will not exceed the allowed axial stress.
Página 234 - I = the length of the member in inches, r = the least radius of gyration of the member in inches. Tension in extreme fibers of rolled shapes, built sections and girders, net section 16,000 Tension in extreme fibers of pins 24,000...
Página 475 - The purchaser shall be furnished complete shop plans, and must be notified well in advance of the start of the work in the shop, in order that he may have an inspector on hand to inspect material and workmanship. Complete copies of shipping invoices shall be furnished to the purchaser with each shipment.
Página 474 - Rivets shall look neat and finished, with heads of approved shape, full and of equal size. They shall be central on shank and grip the assembled pieces firmly. Recupping and calking will not be allowed. Loose, burned or otherwise defective rivets shall be cut out and replaced. In cutting out rivets great care shall be taken not to injure the adjacent metal.
Página 266 - Pitch Pockets. — Pitch pockets are openings between the grain of the wood, containing more or less pitch or bark. These shall be classified as small, standard and large pitch pockets.