The design of highway bridges and the calculation of stresses in bridges trusses

Front Cover
The Engineering news publishing co., 1908 - Bridges - 544 pages
 

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Contents

Weights of Beam Bridges
30
Weight of One Steel Highway Plate Girder
32
Floor Systems for Electric Railway Bridges
36
Snow Loads
45
Moments
55
Graphic MomentsStresses in a Roof Truss
66
Design of Beams
77
Loads
79
Maximum and Minimum Stresses in a Warren
82
Algebraic Moments
87
Maximum Moments End Shears and Floorbeam Reactions
94
Kinds of Stress
95
Resolution of Shear
105
Portals
112
PACE
121
PAGE
123
Stresses in an Eccentric Riveted Connection
132
Algebraic Calculation of Deformations
137
Stresses in Rollers
138
Dead Load Stresses in a Pratt Truss by Graphic
144
Dead Load Stresses in a Baltimore Truss by Graphic
150
Dead Load Stresses in a Warren Truss by Algebraic
156
Problem ri Maximum and Minimum Stresses in a Pratt Truss
162
Maximum and Minimum Stresses in a Quadran
168
Maximum and Minimum Stresses in a Camelback
174
Maximum and Minimum Stresses in a Petit Truss
180
Wind Load Stresses in a Trestle Bent
186
Introduction
193
Standard Beam Highway Bridges
197
Low Truss Bridges
198
Low Truss Spans Used by American Bridge Co
210
Depths of Low Trusses Used by American Bridge Company
211
High Truss Steel Highway Bridges
212
Riveted Bridges
214
Economic Depth and Panel Length of Trusses
220
Depth and Panel Lengths of Highway Bridges American Bridge Co
221
Flange Area
226
Details of Plate Girders
231
Thickness of Metal
240
Forged Eyebars American Bridge Co
241
Forged Eyebars King Bridge Co
242
Adjustable Eyebars American Bridge Co
243
Loopbars American Bridge Co
244
Upsets for Round and Square Bars
245
Pins Chord
267
Standard Buckle Plates American Bridge Co
274
Shoes and Pedestals
280
Roller Nests Youngstown Bridge Co
281
The Design of Abutments and Piers
292
Timber and Piling
298
Coopers Standard Abutments
299
Schneiders Standard Masonry Piers
307
Dimensions of Masonry Piers
308
Steel Piers
321
Minimum Sizes of Oblong Steel Piers Coopers
324
Stresses in Solid Masonry Arches
333
Design of Masonry Bridges and Culverts
351
Stresses in Columns
365
Luten Arch
373
Types of Culverts
379
TABLE PAGE LIX Size Weight and List Price of Vitrified Clay Pipe
381
Size Thickness and Weights of Cast Iron Pipes
382
crete Pipe
383
Relative Cost of Small Culverts
386
Quantities in Reinforced Concrete Culverts
388
The Design of Timber and Combination
389
Allowable Stresses in Timber
394
Examples of Pile Trestles
397
Erection of Steel Highway Bridges
403
Details of Steel Highway Bridges
407
Estimate of Lumber 49
409
Prices of Structural Steel
410
Standard Extras on Iron and Steel Bars
411
Cost of Painting 420
420
Ingredients in 1 cu yd of Concrete
422
sissippi Canal
424
General Principles of Design of Highway
427
A PROBLEM IN HIGHWAY BRIDGE DETAILS
435
Calculation of Weight and Cost of a i6oft
438
Estimate of Weight of Steel Highway Bridge
439
Summary of Weight of Metal in Bridge
446
Weight of Lumber in Bridge
447
Comparison of Details of Highway Bridges
448
Estimate of Cost
449
Investigation of Efficiencies of Member
453
Allowable Bearing and Shearing Values for f Rivets
493
Portal 57
507
Index to Specifications
533

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Page 433 - ... 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.
Page 527 - 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 nut to injure the adjacent metal.
Page 433 - 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...
Page 524 - At least one tensile and one bending test shall be made from each melt of steel as rolled. In case steel differing | in.
Page 525 - Material which, subsequent to the above tests at the mills, and its acceptance there, develops weak spots, brittleness, cracks, or other imperfections, or is found to have injurious defects, will be rejected at the shop and shall be replaced by the manufacturer at his own cost.
Page 392 - Shortleaf Pine. It is understood that these two terms are descriptive of quality, rather than of botanical species. Thus, shortleaf pine would cover such species as are now known as North Carolina pine, loblolly pine, and shortleaf pine. "Longleaf Pine...
Page 320 - The tops of bridge seats, pedestals, copings, wing walls, etc., when not finished with natural stone coping, shall be finished with a smooth surface composed of one part cement...
Page 523 - Chemical determinations of the percentages of carbon, phosphorus, sulphur and manganese shall be made by the manufacturer from a test ingot taken at the time of the pouring of each melt of steel, and a correct copy of such analysis shall be furnished to the engineer or his inspector. Check...
Page 524 - Material which is to be used without annealing or further treatment is to be tested in the condition in which it comes from the rolls. When material is to be annealed or otherwise treated before use, the specimen representing such material is to be similarly treated before testing.
Page 529 - The manufacturer shall furnish all facilities for inspecting and testing the weight and quality of workmanship at the shop where material is manufactured. He shall furnish a suitable testing machine for testing full-sized members, if required.

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