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ODOT Structure Project Manager Training Structure Types.

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Presentation on theme: "ODOT Structure Project Manager Training Structure Types."— Presentation transcript:

1 ODOT Structure Project Manager Training Structure Types

2 Common Structure Types Pipe culverts –Includes reinforced concrete and corrugated metal round pipes, reinforced concrete elliptical pipes, and corrugated steel and aluminum pipe arches –Structural design criteria addressed in Location and Design Manual, Volume 3, Section 1008

3 Round Concrete Pipe

4 Round Corrugated Steel Pipe

5 Elliptical Concrete Pipe

6 Common Structure Types (contd) Box culverts –Includes precast reinforced concrete box culverts, corrugated steel and aluminum box culverts, and corrugated steel long span culverts –Not unusual to see concrete box culverts replace small, single span bridges –Location and Design Manual, Volume 3, Section 1008 for design criteria

7 Precast Concrete Box Culvert

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9 Common Structure Types (contd) Three sided culverts –Includes precast reinforced concrete flat- topped culverts and precast reinforced concrete arch sections –Flat-topped available from 14 to 34 ft. span –Arch available from 12 to 42 ft. span –Location and Design Manual, Volume 3, Section 1008 for design criteria

10 Flat-Topped 3 Sided Culvert

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12 Precast Reinforced Concrete Arch

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14 Common Structure Types (contd) Bridges (Bridge Design Manual, Section 200) –Superstructures consisting of cast-in-place concrete slabs, prestressed concrete box or I- Beams, and structural steel beams and welded plate girders –Shallow abutments with spill-though earthslopes are preferred for stream crossings –Pier type typically depends on what feature is being crossed by bridge

15 Cast in Place Slab with Capped Pile Piers

16 Concrete Box Beams with Cap and Column Piers and Drilled Shafts

17 Rolled Steel Beams with Cap and Column Piers

18 Welded Plate Girders with Single Column Piers

19 Factors Affecting Structure Type Economic considerations Site constraints Hydraulic requirements Subsurface conditions Maintenance of traffic Construction time Utilities (rare)

20 Economic Considerations General hierarchy of construction costs (least to most expensive) –Pipe culvert –Box culvert –Three sided culvert –Bridge Other factors (hydraulics, subsurface conditions, etc.) can outweigh general hierarchy

21 Site Constraints

22 Maintenance of Traffic

23 Limitations on Use of Common Structure Types Culverts – Material durability, minimum and maximum cover restrictions, subsurface conditions, structure skew relative to roadway, maintenance of traffic Bridge superstructures - Curved roadway alignment, structure skew relative to roadway, required span length, maintenance of traffic


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