By Lian Duan, Wai-Fah Chen
Over one hundred forty specialists, 14 international locations, and 89 chapters are represented within the moment version of the Bridge Engineering guide. This vast assortment highlights bridge engineering specimens from worldwide, includes exact info on bridge engineering, and punctiliously explains the innovations and functional functions surrounding the subject.
Published in 5 books: basics, Superstructure layout, Substructure layout, Seismic layout, and building and upkeep, this re-creation offers various worked-out examples that provide readers step by step layout tactics, contains contributions via major specialists from world wide of their respective parts of bridge engineering, comprises 26 thoroughly new chapters, and updates such a lot different chapters. It bargains layout thoughts, standards, and perform, in addition to a number of the forms of bridges. The textual content contains over 2,500 tables, charts, illustrations, and photographs. The publication covers new, leading edge and standard equipment and practices; explores rehabilitation, retrofit, and upkeep; and examines seismic layout and construction materials.
The moment publication, Superstructure layout, comprises 19 chapters, and covers info on how you can layout all kinds of bridges.
What’s New within the moment Edition:
Includes new chapters: Extradosed Bridges and pressure Ribbon Pedestrian Bridges
Updates the Prestressed Concrete Girder Bridges bankruptcy and rewrites it as chapters: Precast/Pretensioned Concrete Girder Bridges and Cast-In-Place Post-Tensioned Prestressed Concrete Girder Bridges
Expands the bankruptcy on Bridge Decks and process Slabs and divides it into chapters: Concrete Decks and technique Slabs
Rewrites seven chapters: Segmental Concrete Bridges, Composite metal I-Girder Bridges, Composite metal field Girder Bridges, Arch Bridges, Cable-Stayed Bridges, Orthotropic metal Decks, and Railings
This textual content is a perfect reference for practising bridge engineers and specialists (design, development, maintenance), and will even be used as a reference for college students in bridge engineering classes.
Read Online or Download Bridge Engineering Handbook: Superstructure Design (2nd Edition) PDF
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Extra resources for Bridge Engineering Handbook: Superstructure Design (2nd Edition)
25 in. 0 in. 3 in. 2-1) Solving the above equation for P, the required minimum P = 670 kip. 1 strands. 9 in from bottom of girder. To control the stress at transfer of prestressing force, harp two strands at middle web location to 36 in and two strands to 38 in at girder ends. 20. 4 in. 20 Strand pattern at midspan and at girder ends. 25 ksi (assume 10% initial loss). 7 ksi. 3% < 10% assumed. Therefore, iteration is needed to calculate ∆f pES. 1 ksi. 4 of the AASHTO LRFD Bridge Design Specifications 2012 Edition.
Prestress losses due to the effects of pretensioning, posttensioning, and possible staged post tensioning shall be considered. Time-dependent losses associated with multiple stages shall be properly evaluated. 18 Bridge Engineering Handbook, Second Edition: Superstructure Design • Instantaneous deflections due to posttensioning at different stages should be noted. These deflection values will be used to set screed grades in the field. • The posttensioning tendon profile shall be noted. Although a specific tendon placement pattern may not be provided in design, at least one workable tendon placement solution shall be developed at all locations along the span, including at anchorages.
The concrete strength assumptions will be verified later in the example. 6 in diameter, seven-wire, low-relaxation. 217 in2 per strand. Tensile strength, f pu = 270 ksi. 9 f pu = 243 ksi. 17. 3. 17 AASHTO type III girder. 18 Effective flange width. (b) Effective flange width According to AASHTO Art. 5S, the effective flange width of a concrete deck slab for an interior girder can be taken as the tributary width, that is, girder spacing S. 5'). 18). 19. In order to compute the section properties of composite section, it is necessary to transform the cast-in-place deck slab and haunch using a modular ratio, nc, to account for the difference in concrete materials between precast girder and cast-in-place deck.