The Design of Highway Bridges of Steel, Timber and ConcreteMcGraw-Hill book Company, Incorporated, 1920 - 548 páginas |
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Página xi
... Bolts ... 264 Timber Trestles .. 257 Definitions of Timber Bridges and Trestles . 264 Iowa Highway Commission . 258 Structural Timber .... 265 Railroad Trestles ... 258 Timber Truss Bridges . 259 Standard Defects of Structural Timber ...
... Bolts ... 264 Timber Trestles .. 257 Definitions of Timber Bridges and Trestles . 264 Iowa Highway Commission . 258 Structural Timber .... 265 Railroad Trestles ... 258 Timber Truss Bridges . 259 Standard Defects of Structural Timber ...
Página 105
... Bolts Foundation Plan . Anchor Bolts 3018927 -16-0 77-15 2-709 77-15 TE - 92 Rod Bars -98-0 ° c.to c . Bar 2 -Rod Rod 2Bars 2 Bars 31 2Bars31 151-427 - **** Elevation . 7 Panels @ 14-0-98-0- -16-0 Girder Tubes -15 : 030 dia Section ...
... Bolts Foundation Plan . Anchor Bolts 3018927 -16-0 77-15 2-709 77-15 TE - 92 Rod Bars -98-0 ° c.to c . Bar 2 -Rod Rod 2Bars 2 Bars 31 2Bars31 151-427 - **** Elevation . 7 Panels @ 14-0-98-0- -16-0 Girder Tubes -15 : 030 dia Section ...
Página 127
... Bolt . Sum No. Fig . 4. For a 7-1 3 × 3 × 16 Span symmetrical about & except as noted for Flange Splices & Stone Bolt Holes . ( Flange Splices are symmetrical by Rotation ) · 7-0-- 16 @ 3 215 50 230 60 30 8 25 7 8 15 74 8 -7 : 0 4232-1 ...
... Bolt . Sum No. Fig . 4. For a 7-1 3 × 3 × 16 Span symmetrical about & except as noted for Flange Splices & Stone Bolt Holes . ( Flange Splices are symmetrical by Rotation ) · 7-0-- 16 @ 3 215 50 230 60 30 8 25 7 8 15 74 8 -7 : 0 4232-1 ...
Página 136
... bolts spaced 4 ft . on centers along the bridge and about 5 ft . transversely . The bolts are placed in the grooves . Regulation sheet asphalt was laid 1 in . over the tops of the strips and granite chips were rolled in with a 5 - ton ...
... bolts spaced 4 ft . on centers along the bridge and about 5 ft . transversely . The bolts are placed in the grooves . Regulation sheet asphalt was laid 1 in . over the tops of the strips and granite chips were rolled in with a 5 - ton ...
Página 137
... bolts in place , at 60 cts . per bolt ; 38 cts . for select Douglas fir lumber , at $ 54 per 1,000 ft . b.m .; 32 cts . for asphalt in place , including material and labor . The floor weighs 15 lb. per sq . ft . for lumber and 14 lb ...
... bolts in place , at 60 cts . per bolt ; 38 cts . for select Douglas fir lumber , at $ 54 per 1,000 ft . b.m .; 32 cts . for asphalt in place , including material and labor . The floor weighs 15 lb. per sq . ft . for lumber and 14 lb ...
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 auto truck axles bars beam beam bridges bending moment bolts bracing calculating the stresses chord stresses coefficients compression concentrated load concrete floor culverts dead and live dead load stresses depth designed end-post equal feet flange floorbeams foot per truss force polygon graphic resolution horizontal I-beams inches influence diagram Iowa Highway joists left reaction lineal foot live load stresses load chord low truss lower chord maximum and minimum maximum shear moving load P₁ plank plate girder plate girder bridge portal posts Pratt truss Problem Problem.-Given R₁ reinforced concrete rivets road roller roadway roller Scale of truss shown in Fig spaced span specifications spiking strips splice Steel Highway Bridges stress diagram stringers tension thickness timber tons top chord truss bridges TRUSS BY GRAPHIC uniform load unit stress vertical Warren truss wearing surface weight 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.