Make all modifications listed below. No re-design or analysis of beams or girders is needed.
Prestressed Concrete I-girder or X-beam Standard Bridge
- Span Standard:
- Change slab and slab overhang thickness dimension to 8 ½".
- Change slab top clear cover to 2 ½".
- Increase DL deflections 6 percent.
- Add ½" to top of deck to top of girder dimension (or X dimension) and Y dimension.
- Increase slab concrete CY volume by an amount equal to (0.00154 * Deck SF).
- Abutment Standard:
- Add 0.2 CY to abutment concrete volume.
- PCP Standard:
- Reduce the maximum allowed slab thickness increase in note 9 from 2" to 1 ½".
- IGCS or XBCS Standard:
- Change slab thickness in note 2 and Section A-A to 8 ½".
Steel Beam Standard Bridge
- Span Standard:
- Change slab and slab overhang thickness dimension to 8 ½".
- Change slab top clear cover to 2 ½".
- Add ½" to top of slab to top of beam dimension.
- Increase slab concrete CY volume by an amount equal to (0.00154 * Deck SF)
- Abutment Standard:
- Add 0.2 CY to abutment concrete volume.
- SBSD Standard:
- Add ½" to Y dimension.
- Increase DL deflections 6 percent.
- SBCS Standard:
- Change slab thickness in note 3 and Section A-A to 8 ½".
- SBMD Standard:
- Change clearance from top of deck to stud connector to 2 ½" in Stud Connector Detail.
- PCP Standard:
- Reduce the maximum allowed slab thickness increase in note 9 for steel beams from 1" to ½".