By Lian Duan, Wai-Fah Chen
Over a hundred and forty specialists, 14 international locations, and 89 chapters are represented within the moment variation of the Bridge Engineering instruction manual. This huge assortment highlights bridge engineering specimens from worldwide, comprises exact details on bridge engineering, and punctiliously explains the suggestions and functional functions surrounding the subject.
Published in 5 books: basics, Superstructure layout, Substructure layout, Seismic layout, and building and upkeep, this new version presents various worked-out examples that supply readers step by step layout approaches, comprises contributions by way of prime specialists from around the globe of their respective components of bridge engineering, includes 26 thoroughly new chapters, and updates so much different chapters. It deals layout options, standards, and perform, in addition to some of the forms of bridges. The textual content contains over 2,500 tables, charts, illustrations, and pictures. The ebook covers new, leading edge and conventional equipment and practices; explores rehabilitation, retrofit, and upkeep; and examines seismic layout and development materials.
The moment booklet, Superstructure layout, includes 19 chapters, and covers info on how you can layout every kind 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 strategy Slabs and divides it into chapters: Concrete Decks and strategy 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 working towards bridge engineers and experts (design, development, maintenance), and will even be used as a reference for college students in bridge engineering classes.
Read or Download Bridge Engineering Handbook: Superstructure Design (2nd Edition) PDF
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Additional resources for Bridge Engineering Handbook: Superstructure Design (2nd Edition)
0 ft (about 90% of the structure depth) from the face of support is the critical location. 6. The amount of mild steel required should be determined on the basis of the minimum longitudinal reinforcement requirement (AASHTO Eq. 5-1). 10. 25 Definitions of ybs, de, and dv. 0 ft. Since the width of bearing has not been determined, it is conservative to assume that the support width equals zero. 26 shows the critical section near the support. 4/12 ) = 651 k-ft f po = a parameter taken as modulus of elasticity of prestressing tendons multiplied by the locked-in difference in strain between the prestressing tendons and the surrounding concrete.
19 fc′. The center of gravity of the strands at midspan is assumed to be located at 5% of the girder depth from the bottom fiber. 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).
Modulus of elasticity, Ec = 4,696 ksi. 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.