PGSuper  4.1
Precast-prestressed Girder Bridges
Deck Geometry and Materials

The deck type selected on the General tab and the deck casting event are listed at the top of this tab. Use the drop down list to select the deck casting event (PGSplice only).

Cross Section

Define the cross section of the deck

Item Description
Gross Depth Enter the gross depth of the cast-in-place slab
Cast Depth Enter the cast depth of a deck build with stay-in-place precast deck panels
Overhang Edge Depth Enter the depth of the deck at the edge of the overhang
Overhang Taper Use the drop down list to select the shape of the deck overhang
Panel Depth Depth of the stay-in-place precast deck panels
Panel Support Width Support width of the stay-in-place precast deck panels

Plan (Edge of Deck)

Define the edge of deck in plan view.

Item Description
Deck Edge Offset grid Enter offsets to the left and right edge of the deck. (See below for more details)
[Add] Add a deck edge offset point.
[Remove] Remove the selected deck edge offset point.

Deck Edge Offset Grid

Item Description
Station Station where the deck edge point is defined
Measured From Select the location from which the offsets are measured
Left Offset Normal offset from the specified location to the left edge of the deck.
Right Offset Normal offset from the specified location to the right edge of the deck.
Transition Select a transition type from the drop down list.

The deck edge offset point transition defines how the edge of deck to the next.

Transition Description
Parallel The edge of deck parallels the alignment and bridge line. The offset at the next point is exactly the same as the previous point
Linear The edge of deck is a straight line between deck edge offset points.
Spline The edge of deck is a cubic spline curve between deck edge offset points.

Haunch Geometry

Define the geometry of the slab haunch

Item Description
Haunch Shape Select the shape of the slab haunch. This setting is for graphical presentation purposes only
Fillet* Enter the depth of the slab fillet. A single Fillet value is defined for the whole bridge.
Slab Offset ("A" Dimension) Enter the slab offset dimension for the bridge. Note that a single Slab Offset can be defined for the whole bridge, per bearing line, or per girder.
Assumed Excess Camber + Enter the excess camber that is used to define the parabolic haunch depth used for computing composite section properties and/or haunch dead load. Note that this option is only available if the parabolic option is selected for computing composite section properties or haunch loading in the current Project Criteria library entry.

* The Fillet is the least allowable haunch depth along a girder, and is used by PGSuper to compute the required “A” dimension during a specification check and design. Refer to Slab Offset ("A" Dimension, "X" Dimension) section of the Technical Manual for more information.

+ Refer to the Slab Haunch loading section of Structural Analysis Models for more information. Refer to Section Properties in the Technical Guide for detailed information about haunch depth is used when computing composite section properties.

Material

Define the deck material

Item Description
f'c Concrete strength
Ec When checked, enter the modulus of elasticity. Otherwise, the modulus of elasticity is computed from the AASHTO equation
[More Properties...] Press to enter more detailed information about the concrete or copy a predefined concrete from the library

Wearing Surface

Define the bridge deck wearing surface

Item Description
Wearing Surface Type Use the drop down list to select the wearing surface type
Installation Use the drop down list to select the installation event (PGSplice only)
Sacrificial Depth Enter the sacrificial depth of the deck
Overlay Weight When selected, the overlay dead load is defined by a pressure load. Enter the pressure load
Overlay Depth When selected, the overlay dead load is defined by the depth of the overlay and a unit weight.

Condition and Load Rating

Use the drop down list to enter the condition of the deck. If a condition of "Other" is selected, enter the condition factor.