Deck/Slab Property Information dialog
Used to enter the Composite, NonComposite, or Concrete Floor System Property Information for all decking or slabs to be used in the current model.
If the deck is to be assigned to a roof or floor that is going to be specified as Semi-rigid in RAM Frame, the Diaphragm properties must be specified for Composite and Noncomposite decks; diaphragm properties for Concrete slabs are determined from the specified concrete slab properties.
Composite Floor System tab
On the Composite Floor System tab, any Deck Type currently in the deck file may be selected. Other properties associated with the concrete slab, studs, etc., must also be defined.
| Setting | Description | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Deck | Select a steel deck value from the current Deck table. | ||||||||
| Reinforced with Dramix Steel Fibres | Check this option to specify the use of Dramix Steel Fibres for the composite deck. When Kingspan Multideck 50, 60 or 80 decks are selected (available in the ramuk Deck table), an option to specify that the concrete is Reinforced with Dramix Steel Fibres is enabled. See the RAM Steel Beam manual for additional information. | ||||||||
| Reinforced with FibreFlor | Check this option to specify the use of FibreFlor for the composite deck. When Corus or Tegral ComFlor 43, 51, 70 or 80 decks are selected (available in the ramuk Deck table), an option to specify that the concrete is Reinforced with FibreFlor is enabled. See the RAM Steel Beam manual for additional information. | ||||||||
| Stud Diam | Select a predefined diameter for the shear studs. | ||||||||
| Shored | Select if the decking is shored or not during construction. | ||||||||
| Label | Type a label used to identify this deck for assignment. | ||||||||
| Concrete Thickness Above Flutes | Type the concrete height above the deck flutes. | ||||||||
| Stud Length | Type the total stud length. | ||||||||
| Unit Weight | Type the unit weight (density) of the concrete. | ||||||||
| f'c | Type the compressive strength of the concrete. | ||||||||
| Stud Fu | Type the rupture strength of the stud material. | ||||||||
| Self-Weight of Steel Deck | Type the self-weight of the steel deck, given as an area load. | ||||||||
| Diaphragm | Provide geometry and material properties used for diaphragm action:
|
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| Slab Stiffness Properties | Check the
Apply Stiffness Modification Factors option to
modify the stiffness in different directions and actions (in-plane and
out-of-plane). These can be used to assign different properties for
corrugated decks such that load is only transferred along the deck
direction. Similarly, they can be used to account for cracked properties of
concrete decks (in place of crack factors). To modify stiffness properties of diaphragms, the program allows you to define 3 stiffness modifiers for in-plane action (i.e., f11, f22, and f12) and 3 stiffness modifiers for out-on-plane action (i.e., m11, m22, and m12). Further information can be found in RAM Frame Manual, Section 7.24. |
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| composite floor systems table | The composite floor systems defined in the model are displayed here. | ||||||||
| Add | Click to add a new composite floor system to the model. | ||||||||
| Delete | Click to delete the currently selected composite floor system from the model. If the composite deck is assigned in the model, a warning is displayed and you will not be able to delete it. | ||||||||
| Change | Click to change the deck properties to any changed values or selections. Any changes made to a Deck Property after it has been assigned to a floor area automatically become effective wherever that Property has been assigned. |
Noncomposite Floor System tab
On the Noncomposite tab, a label and other noncomposite properties must be specified.
| Setting | Description | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Label | Type a label used to identify this deck for assignment. | ||||||||
| Unit Weight for Self-Weight | Type the self-weight of the deck, given as an area load. | ||||||||
| Diaphragm | Provide geometry and material properties used for diaphragm action:
|
||||||||
| Slab Stiffness Properties | Check the
Apply Stiffness Modification Factors option to
modify the stiffness in different directions and actions (in-plane and
out-of-plane). These can be used to assign different properties for
corrugated decks such that load is only transferred along the deck
direction. Similarly, they can be used to account for cracked properties of
concrete decks (in place of crack factors). For noncomposite floor systems, you may also specify the angle from the global X-axis at which the stiffness modifiers act. To modify stiffness properties of diaphragms, the program allows you to define 3 stiffness modifiers for in-plane action (i.e., f11, f22, and f12) and 3 stiffness modifiers for out-on-plane action (i.e., m11, m22, and m12). Further information can be found in RAM Frame Manual, Section 7.24. |
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| noncomposite floor systems table | The noncomposite floor systems defined in the model are displayed here. | ||||||||
| Add | Click to add a new noncomposite floor system to the model. | ||||||||
| Delete | Click to delete the currently selected noncomposite floor system from the model. If the noncomposite deck is assigned in the model, a warning is displayed and you will not be able to delete it. | ||||||||
| Change | Click to change the deck properties to any changed values or selections. Any changes made to a Deck Property after it has been assigned to a floor area automatically become effective wherever that Property has been assigned. |
Concrete Slab System tab
On the Concrete Slab System tab, a label for the floor system and the concrete properties and slab thickness must be specified. Concrete Slab properties for mat foundations are also defined using this dialog tab. Once defined, the concrete slabs can be assigned to mat foundations using the command (see Mat Foundations for more information on Mat Foundations.)