Deflections according to a standard
Deflections in beams
Parameters
Value types
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linear |
linear deformation |
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nonlinear |
non-linear deformation (short time component + immediate long time component) (without creep coefficient taken into account) |
|
nonlinear + creep |
total deformation |
Note: The value types may differ depending on the applied code.
Note: The explanation of the values is given at the end of the chapter.
Drawing setup
In addition to standard drawing setup parameters, the following parameters are added for the needs of design of concrete beams.
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Values |
If ON, labels are attached to the diagram. If OFF, only the diagram without any description is displayed. |
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Draw section in labels |
If ON, the longitudinal position of the section is depicted. |
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Draw load case or combination in label |
The design is always performed for the selected load case or combination. The number of considered load case / combination may be added to the diagram label. |
Action buttons
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Refresh |
Refreshes the contents of the graphical window. Whenever the refresh of the screen is required, this item is red-highlighted. |
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Concrete setup |
Enables the user to modify design parameters. See Concrete setup for design of beams. |
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Preview |
Shows the selected design values in the Preview window. |
Deflections in slabs
Parameters
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Selection |
This item defines the type of selection that the user wants to use to choose beams where the design results should be displayed. |
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Type of loads |
Selects the type of load to be evaluated: for this particular function only Concrete combination is available. |
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Concrete combination |
Selects the particular combination class to be evaluated. |
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Filter |
The selection of beams to be evaluated may be filtered out. |
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Deformation |
linear The linear deformations will be shown. These are identical to the deformations in service Results. nonlinear These deformation values reflect the nonlinear behaviour of the concrete during deflecting. nonlinear with creep These values take into account the creep of the concrete. |
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Drawing |
Standard The results are displayed in the form of isolines / isobands. Section The results are drawn along defined sections. Resultant The resultants in the defined sections are shown. |
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Values |
This item selects the value or values to be displayed. |
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Extreme |
Defines the places where numerical values will be added to the diagram of selected quantity. |
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Drawing setup |
Enables the user to adjust the display style for the result diagrams. See chapter in the Reference guide: Results > Results on slabs > Isolines, Isobands, etc.. |
Action buttons
|
Refresh |
Refreshes the contents of the graphical window. Whenever the refresh of the screen is required, this item is red-highlighted. |
|
Concrete setup |
Enables the user to modify design parameters. See Concrete setup for design of beams. |
|
Preview |
Shows the selected design values in the Preview window. |
Calculated and printed values
1D members
δlim,tot = Limit value of total deflection
δlim,add = Limit value of additional deflection
δlim/δtot,lim = Check of total deflection
δadd/δadd,lim = Check of additional deflection
δlinear = deflection from linear calculation for selected combination for check
δelastic = elastic deformation calculated for short-term stiffness and selected combination for check
δcreep = creep deflection calculated as difference between deflection calculated for long-term and short-term stiffness for combination used for calculation creep deflection
δimm = immediate deflection calculated for short-term stiffness and for combination used to permanent deflection
δtot = total deflection; δtot = δelastic + δcreep
δadd = additional deflection; δadd = δtotal - δimm.
θlinear = rotation from linear calculation for selected combination for check
θelastic = elastic rotation calculated for short-term stiffness and selected combination for check
θcreep = creep rotation calculated as difference between rotation calculated for long-term and short-term stiffness for combination used for calculation creep deflection
θimm = immediate rotation calculated for short-term stiffness and for combination used to permanent deflection
θtot = total rotation; θtot = θelastic + θcreep
θadd = additional rotation; θadd = θtotal - θimm
2D members
δlim,tot = Limit value of total deflection
δlim,add = Limit value of additional deflection
δlim/δtot,lim = Check of total deflection
δadd/δadd,lim = Check of additional deflection
δlinear = deflection from linear calculation for selected combination for check
δelastic = elastic deformation calculated for short-term stiffness and selected combination for check
δcreep = creep deflection calculated as difference between deflection calculated for long-term and short-term stiffness for combination used for calculation creep deflection
δimm = immediate deflection calculated for short-term stiffness and for combination used to permanent deflection
δtot = total deflection δtot = δelastic + δcreep
δadd = additional deflection δadd = δtotal - δimm.
θlinear = rotation from linear calculation for selected combination for check
θelastic = elastic rotation calculated for short-term stiffness and selected combination for check
θcreep = creep rotation calculated as difference between rotation calculated for long-term and short-term stiffness for combination used for calculation creep deflection
θimm = immediate rotation calculated for short-term stiffness and for combination used to permanent deflection
θtot = total rotation; θtot = θelastic + θcreep
θadd = additional rotation; θadd = θtotal - θimm.