Difference between revisions of "751.18 Concrete Multicell Box Girder Bridges"
Jump to navigation
Jump to search
File:751.21 cont conc box girders section at int bent single column.gif
SECTION AT INT. BENT
(SINGLE COLUMN)
File:751.21 cont conc box girders typical section thru web & slabs.gif
TYPICAL SECTION THRU WEB & SLABS
File:751.21 cont conc box girders rectangle access door plan.gif
PLAN
File:751.21 cont conc box girders rectangle access door sec aa.gif
SECTION A-A
DETAILS OF ACCESS DOORS
WEIGHT 179#
File:751.21 cont conc box girders oval access door plan.gif
PLAN
File:751.21 cont conc box girders oval access door sec aa.gif
SECTION A-A
DETAILS OF ACCESS DOORS
File:751.21 cont conc box girders oval access door details.gif
File:751.21 cont conc box girders access door location.gif
File:751.21 cont conc box girders access door reinforcement.gif
m (Smithk moved page 751.21 Concrete Box Girder to 751.18 Concrete Multicell Box Girder Bridges: Per BR, renamed and renumbered) |
m (Per BR, article renamed and renumbered) |
||
| Line 1: | Line 1: | ||
| − | ==751. | + | ==751.18.1 Reinforcement== |
| − | ===751. | + | ===751.18.1.1 Single Column Design=== |
'''Top Slab Modifications at Intermediate Bent:''' | '''Top Slab Modifications at Intermediate Bent:''' | ||
| Line 14: | Line 14: | ||
<center>'''SECTION AT INT. BENT'''<br/>'''(SINGLE COLUMN)'''</center> | <center>'''SECTION AT INT. BENT'''<br/>'''(SINGLE COLUMN)'''</center> | ||
| − | ===751. | + | ===751.18.1.2 Web Reinforcement=== |
'''Top Slab Modifications at Intermediate Bent:''' | '''Top Slab Modifications at Intermediate Bent:''' | ||
| Line 22: | Line 22: | ||
<center>'''TYPICAL SECTION THRU WEB & SLABS'''</center> | <center>'''TYPICAL SECTION THRU WEB & SLABS'''</center> | ||
| − | ==751. | + | ==751.18.2 Miscellaneous Details== |
| − | ===751. | + | ===751.18.2.1 Access Doors=== |
ACCESS DOORS (RECTANGLE) | ACCESS DOORS (RECTANGLE) | ||
Latest revision as of 07:38, 2 April 2021
Contents
751.18.1 Reinforcement
751.18.1.1 Single Column Design
Top Slab Modifications at Intermediate Bent:
The reinforcement shown below shall be used in place of the design slab steel.
(1) designed slab steel
(SINGLE COLUMN)
751.18.1.2 Web Reinforcement
Top Slab Modifications at Intermediate Bent:
751.18.2 Miscellaneous Details
751.18.2.1 Access Doors
ACCESS DOORS (RECTANGLE)
WEIGHT 179#
ACCESS DOORS (OVAL)
See Section 4A for painting or galvanizing note.
ACCESS DOORS LOCATION
- Generally, access doors shall be positioned on or near 1/4 point of span and centerline of roadway.
It is permissible to shift position of access doors when:
- Girder is located at centerline of bridge
- To prevent cutting additional slab bars
- To clear construction joints
- To maintain adequate vertical clearance
If possible, do not locate access doors over a roadway or berm.
| PLAN OF ACCESS DOOR SHOWING REINFORCEMENT |
