| Title | Steel Bridge Design Handbook Design Example 5: Three-Span Continuous Horizontally Curved Composite Steel Tub-Girder Bridge |
|---|---|
| Record ID | 68072 |
| Personal Name Creator |
Chavel, Brandon W.; Rivera, Julie |
| Corporate Creator | United States. Federal Highway Administration. Office of Bridges and Structures |
| Corporate Contributor |
HDR, Inc. |
| Publisher | United States. Federal Highway Administration. Office of Bridges and Structures |
| Publication Date | 20151201 |
| Language | English |
| Abstract | Tub girders, as closed-section structures, provide a more efficient cross section for resisting torsion than I-girders, which is especially important in horizontally curved highway bridges. The increased torsional resistance of a closed composite steel tub girder also results in an improved lateral distribution of live loads. For curved bridges, warping, or flange lateral bending, stresses are lower in tub girders, when compared to I-girders, since tub girder carry torsion primarily by means of St. Venant torsional shear flow around the perimeter of their closed sections, whereas I-girders have very low St. Venant torsional stiffness and carry torsion primarily by means of warping. This design example illustrates the design calculations for a curved steel tub girder bridge, considering the Strength, Service, fatigue and Constructibility Limits States in accordance with the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Bridge Designs specifications. Calculations are provided for design checks at particular girder locations, a bolted field splice design, an internal pier diaphragm design, and a top flange lateral bracing member design. |
| Public Note | The previous version of this Handbook was published as FHWA-IF-12-052 and was developed to be current with the AASHTO LRFD Bridge Design Specifications, 5th Edition with the 2010 Interims. FHWA-HIF-16-002 was updated in 2015 by HDR, Inc., to be current with the AASHTO LRFD Bridge Design Specifications, 7th Edition. |
| Rosap ID | dot:42896 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/42896 |
| TRT Terms | Bridge design; Steel bridges; Girder bridges; Continuous girder bridges; Handbooks |
| General Subjects | Steel Tub Girder Bridge; Steel Box Girder Bridge; LRFD; Bolted Field Splice; Top Flange Lateral Bracing; Box Girder Distortional Stresses |
| Geographical Coverage |
United States |
| TRIS Online Accession No |
1608590 |
| Contract Number | DTFH6114D00049 |
| Report Number | FHWA-HIF-16-002 – Vol. 25 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/68000/68000/68072/FHWA-HIF-16-002___Vol._25.pdf |
| Format | |
| Database | NTL Digital Repository |