CBS Manual Example Eng Calculations 2009

User Guide

AutodeskOctober 2008

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Autodesk Concrete Building Structures 2009 - Examples page: 1

2008 Autodesk, Inc. All rights reserved

1. COMPUTATIONAL CAPABILITIES OF AUTODESK CONCRETE BUILDING STRUCTURES

1.1. IntroductionThe example below illustrates how to use the calculation methods provided in Autodesk Concrete Building Structures. Calculations may be performed independently, using a user-selected method.To facilitate defining a geometrical model, the example is based on a simple structure of a small building.

The following rules will apply in the example below

any icon symbol means that the relevant icon is pressed with the left mouse button

{x,x y,y} stands for indication with the mouse cursor of the point with the coordinates X=x,x Y=y,y (the value specified may be approximate if it refers to a structure snap point)

d indicates entering the d text to the described field

d stands for entering the d text directly from the keyboard (without the association with the edit field) and pressing the Enter key

Enter, Ctrl, Delete, ESC, Space stands for pressing the key Enter, Ctrl, Delete, ESC, Space, respectively, on the keyboard; the + sign indicates that pressing of the above-mentioned key on the keyboard is linked with pressing of another key that follows after the + sign

LMC, RMC: abbreviations for the Left Mouse button Click and the Right Mouse button Click

the following units are applied in the example: structure dimension [m], section dimension [cm], angle [Deg] (default units may be changed by the user in the Preferences dialog box on the Unitstab - available in the Tools / Preferences menu).

page: 2 Autodesk Concrete Building Structures 2009 - Examples


To start Autodesk Concrete Building Structures, the user should press the icon on the computer desktop or select START menu > Autodesk Concrete Building Structures.

UWAGA: Autodesk Concrete Building Structures version 2009 may be run in three different configurations: Geometrical model, Geometrical model with loads and Calculations.To check the current program configuration, the user should select the Preferences option from the Tools menu and next, in the Preferences dialog box move to the Configuration tab. To make the example below correctly, the Calculations option has to be selected. If a different option is selected, then the Calculations icon should be pressed. To update the configuration, the program has to be closed and then restarted. If the Calculations option is not active, then the user should run the installation program again and using the Modify mode should install the components: Calculations and Advanced Calculations. Detailed information concerning it can be found in the Autodesk Concrete Building Structures Help file (Program Installation / Installation Program).

NOTE: The following codes are used in the example:- RC provided reinforcement: ACI 318-02 metric- RC required reinforcement: ACI 318-02 metric- Foundation design: ACICodes can be selected in the Preferences dialog box.

1.2. Definition of a Structure Model

1.2.1. Definition of Sections and Default Materials

(Section Database - the Properties toolbar)

Opens the Section Database dialog box for definition of new sections.NOTE: If there is no toolbar with the appropriate icon on the screen, from the View menu the user should select the Toolbars submenu and then activate the relevant toolbar by LMC on the line with the toolbar name.

LMC on the tree option called Rectangular in the left panel of the dialog box

Selects the section type - rectangular sections. The background of the active section type fills with a navy blue color.

(Add) Adds a new rectangular section.

To the h field enter the value 20.0 Defines section dimensions.

OK Closes the dialog box and accepts the operations performed.

(Default sections- the Properties toolbar)

Opens the Default Sections dialog box for definition of default sections for newly-defined elements.

From the Columns list select the section R20*20

Sets the section R20*20 as a default one for newly-defined columns.

From the Slabs list select the section TH10

Sets the section TH10 as a default one for newly-defined slabs.

From the Continuous Footings list select the section T40*20

Sets the section T40*20 as a default one for newly-defined continuous footings.



From the Doors list select the section O80*210 (leave the remaining sections unchanged)

Sets the section O80*210 as a default one for newly-defined doors.

OK Accepts the performed operations and closes the Default Sections dialog box.

(Default Materials- the Properties toolbar)

Opens the Default Materials dialog box for definition of default materials for newly-defined elements.

From the Partition Walls list select the material: clinker brickFor the remaining elements select the default material: Concrete

Sets default materials for newly-defined elements.

OK Accepts the performed operations and closes the Default Materials dialog box.

(Material Database - the Properties toolbar)

Opens the Material Database dialog box for definition of material parameters.

Select parameters as in the drawing below

Accepts the performed operations and closes the Material Database dialog box.

Tools / Preferences Opens the Preferences dialog box.

LMC on the Colors tab in the opened Preferences dialog box

Changes the active tab in the Preferences dialog box.

LMC on 4th icon: in the Filling (2D architectural view)

Opens the Filling dialog box.

LMC select the filling method: Changes the method slabs are filled in the 2D architectural view.



2 x Closes the Filling dialog box, and next, closes the Preferences dialog box.NOTE:The standard parameter set can be restored by pressing the Restore Default button.

1.2.2. Definition of a grid

(Grid / Axes - the Objects toolbar)

Opens the Grids dialog box for definition of new grids and structural axes.NOTE: The option is also available in the context menu (RMC / Grid/Axes) and the top menu (Edit / Grid/Axes).

In the opened Grids dialog box, LMC on the tree options:Cartesian grids / CAG, on the field to the left of the grid name CAG( displays)

Activates a new Cartesian grid. The background of the active grid type (CAG) fills with a navy blue color, if not, LMC on the grid name (CAG), then the right panel of the dialog box displays and parameters of an active grid may be defined there.

Select parameters as in the drawing below.

Enter Saves parameters of a defined grid.

LMC on the tree option called Axesin the left panel of the Grids dialog box

Adds and deletes groups of structure axes. The background of the Axes option fills with a navy blue color.

(Add) Adds a new group with a default name AG(1).



In the opened Grids dialog box, LMC on the tree options Axes/AG(1)/Straight axes/A, on the field to the left of the name A( displays)

Activates a new straight axis A in the AG(1) group. The background of the tree option fills with a navy blue color.

LMC on the X axis field in the right panel of the Grids dialog box (disappears)

Deselects the option that imposes a parallel position of the axis to the X axis of the coordinate system. All fields with coordinates of the defined axis become active.

LMC on the Y axis field in the right panel of the Grids dialog box (displays)

Selects the option that imposes a parallel position of the axis to the Y axis of the coordinate system. Only the field with the x1 coordinate is active.

LMC on the x1 field and enter:10,00(see the drawing below)

Defines the x1 coordinate.

Accepts the grid definition and inserts the grid in the graphical viewer (compare the appearance of the grid with further drawings).NOTE: If the grid is not displayed on the screen, it should be checked if it has been activated. There should be the symbol next to the grid name CAG in the tree of the Gridsdialog box.



1.2.3. Definition of Walls

(Wall - the Objects toolbar) The option allows definition of walls in a structure model.

(Drag - the Edit - Modes toolbar) Selects the option that allows defining objects as a chain -polyline.

(Snap cursor to grid nodes the Snap toolbar)

Selects the option that allows snapping the cursor to the grid nodes. NOTE: The option may already be switched on by default.

LMC on the grid nodes with the following coordinates:{5,0 4,0} ; {15,0 4,0} ; {15,0 13,0} ; {5,0 13,0} ; {5,0 4,0} ; {2,0 4,0} ;{2,0 1,0} ; {6,0 1,0} ; {6,0 4,0} ;

Defines a chain of walls.

Esc Finishes defining a chain of walls.

LMC on the grid nodes with the following coordinates:{5,0 13,0} ; {2,0 13,0} ; {2,0 16,0} ; {6,0 16,0} ; {6,0 13,0}

Defines another chain of walls.


LMC on the grid nodes with the following coordinates:{9,0 13,0} ; {9,0 7,0} ; {11,0 7,0} ; {11,0 13,0}

Defines the next chain of walls.


(Drag - the Edit - Modes toolbar) Deselects the option that allows defining objects as a chain - polyline.

(Partition Wall - the Objects toolbar)

The option allows definition of partition walls in a structure model.

LMC on the grid nodes with the following coordinates:{8,0 4,0} ; {8,0 13,0}{5,0 7,0} ; {8,0 7,0}{5,0 10,0} ; {13,0 10,0}

Defines partition walls.

(Select - the Objects toolbar) Selects the option allowing selection of elements.NOTE: The option is also available in the context menu (RMC / Select).

With the Ctrl key pressed down, LMC select the walls marked with a blue color in the drawing below

Selects objects. The selected walls will be highlighted in blue.

(Vertical Mirror - the Edit toolbar) Selects the option mirror reflection with respect to the axis.



LMC on any point on the axis A, e.g. {10,0 10,0}

Indicates the axis (point) with respect to which the selected walls will be mirrored (the created walls are marked with a dashed line in the drawing below).

1.2.4. Definition of Beams

(Beam - the Objects toolbar) The option allows definition of beams in a structure model.

(Drag - the Edit - Modes toolbar) Selects the option that allows defining objects as a chain -polyline.

LMC on the grid nodes with the following coordinates:{3,0 13,0} ; {1,0 10,0} ; {1,0 7,0} ;{3,0 4,0} ;

Defines a chain of beams.

Esc Finishes defining a chain of beams.


LMC on any point in the graphical viewer

Turns off element selection.

With the Ctrl key pressed down, LMC select the defined chain of beams

Selects objects. The selected beams will be highlighted in blue.

(Group - the Edit toolbar) The option allows grouping selected elements of a structure model.

Yes Accepts deletion of releases within a multi-span beam.

(Beam - the Objects toolbar) The option allows definition of beams in a structure model.



(Drag - the Edit - Modes toolbar) Deselects the option that allows defining objects as a chain - polyline.

LMC on the grid nodes with the following coordinates:{1,0 7,0} ; {5,0 7,0}{1,0 10,0} ; {5,0 10,0}{6,0 16,0} ; {14,0 16,0}{6,0 1,0} ; {14,0 1,0}

Defines beams.

(Select - the Objects toolbar) Selects the option that allows selection of elements.NOTE: The option is also available in the context menu (RMC / Select).

With the Ctrl key pressed down, LMC select the defined beams marked with a blue color in the drawing below

Selects objects. The selected beams will be highlighted in blue.

(Vertical Mirror - the Edit toolbar) The option allows mirroring elements of a structure model.


Indicates the axis (point) with respect to which the selected beams (marked with a dashed line in the drawing below) will be mirrored.

1.2.5. Definition of Columns

(Column - the Objects toolbar) The option allows definition of columns in a structure model.

LMC on the grid nodes with the following coordinates:{9,0 16,0} ; {1,0 10,0} ; {1,0 7,0} ;{8,0 1,0} ; {10,0 1,0}

Defines columns.



Space Opens the Display dialog box.NOTE: The option is also available in the context menu (RMC / Display).

LMC on the Names tab in the opened Display dialog box

Changes the active tab in the Display dialog box.

LMC on the Columns field (displays)

The option allows displaying the name of columns in the graphical viewer.

Closes the Display dialog box.




LMC in the graphical viewer indicate the column named C0_4

Selects objects. The selected column C0_4 will be highlighted in blue.

(Properties - the Objects toolbar)

Opens the Object Properties dialog box.NOTE: The option is also available in the context menu (RMC / Properties).

LMC on the Properties tab in the opened Object Properties dialog box

Changes the active tab in the Object Properties dialog box.

LMC on the Material field and select:Pine

Changes the material type.

Enter Accepts the change of material and closes the Object Properties dialog box.

With the Ctrl key pressed down, LMC select the defined columns:C0_1; C0_2; C0_3; C0_4 marked with a blue color in the drawing below

Selects objects. The selected columns will be highlighted in blue.NOTE: It is also possible to select elements by means of window selection (pressing down the left mouse button (LMC) select a rectangular area) in the following two ways:- a window defined from left to right (selects elements positioned entirely inside the window)- a window defined from right to left (selects elements positioned inside the window along with all objects that intersect with the line of the selection window).

(Vertical Mirror - the Edit toolbar) The option allows mirroring elements of a structure model.


Indicates the axis (point) with respect to which the selected columns will be mirrored.



1.2.6. Definition of Spread and Continuous Footings

(Spread Footing - the Objects toolbar)

The option allows definition of spread footings in a structure model.

LMC indicate the grid nodes at which all columns were defined

Defines spread footings.

(Continuous Footing - the Objects toolbar)

The option allows definition of continuous footings in a structure model.

Define continuous footings under all the walls analogously as in chapter 1.2.2 Definition of Walls (the spread and continuous footings are presented in the drawing below)

Defines continuous footings.


The option allows switching off display of all objects in a structure model.

LMC on the fields:Continuous footings; Spread footings( displays)

The option allows displaying selected objects (continuous and spread footings) in the graphical viewer.




1.2.7. Definition of Windows



LMC on the fields:Walls; Partition walls; Windows (displays)

The option allows displaying selected objects in the graphical viewer.



LMC on the fields:Columns ( disappears)Walls ( displays)

The option allows switching on display of the name of walls in the graphical viewer.


(Window - the Objects toolbar) The option allows definition of windows in a structure model.

(Snap cursor to object centers the Snap toolbar)

Selects the option that allows snapping the cursor to centers of objects.NOTE: The option may already be switched on by default.

(Snap cursor to grid nodes the Snap toolbar)

Selects the option that allows snapping the cursor to the grid nodes.NOTE: The option may already be switched on by default.



LMC one by one on the following points (walls: W0_1, W0_2, W0_4, W0_6, W0_7, W0_10, W0_11, W0_14, W0_17, W0_18, W0_21, W0_22) at which windows presented in the drawing below are defined

Defines windows.

(According to object the Coordinate System toolbar)

The option allowing a change of the coordinate system.

LMC on the wall W0_1(see the drawing above)

Changes the coordinate system according to the wall W0_1.




LMC on the Position tab in the Add object dialog box

Changes the active tab in the Add object dialog box.

LMC on the field with the x (m) coordinate and enter: 3,8(see the drawing below)

Defines the value of the x coordinate of a defined window in the wall W0_1.

(the icon in the top right corner of the Add object dialog box)

The option that allows performing a number of edit operations without closing the dialog box.NOTE: The option is available in all dialog boxes for editing.

Enter Inserts a defined window in the selected wall.








LMC on the wall W0_3(see the drawing below)










LMC on the wall W0_4(see the drawing below)









Analogously as for the wall W0_4, define windows in the wall W0_2(see the drawing below)

Defines windows.



Drawing 1.2.7


Closes the Add object dialog box.


LMC on the window defined in the wall W0_14 (see the drawing above)

Selects objects. The selected window will be highlighted in blue.



LMC on the Properties tab in the opened Object Properties dialog box

Changes the tab in the Object Properties dialog box.

(the icon on the Properties tab, next to the Section option)

Opens the Section Database dialog box.

(Add) Adds a new window section.

In the field:I enter the value 160h enter the value 100

Defines window dimensions.

LMC in the Type field on the Window option ( displays)

Defines a rectangular opening type.

Creates a new section and closes the Section Databasedialog box.

LMC on the Position tab in the opened Object Properties dialog box




LMC on the field with the z[m] coordinate and enter:2,10

Changes the height (the z coordinate) of the selected window.

Enter Modifies a selected window.

(the icon in the top right corner of the Object Properties dialog box)

Closes the Object Properties dialog box.

1.2.8. Definition of Doors


LMC on the fields:Windows ( disappears)Doors ( displays)




LMC on the field:Partition walls ( displays)

The option allows switching on display of names of partition walls in the graphical viewer.


(Doors - the Objects toolbar) The option allows definition of doors in a structure model.

LMC one by one on the following points (walls: W0_1, W0_3, W0_8, W0_12, W0_19, W0_23, PW0_1, PW0_4) at which doors presented in the drawing below are defined

Defines doors.





LMC on the partition wall: PW0_1(see the drawing below)

Changes the coordinate system according to the wall PW0_1.



Opens the Add object dialog box.NOTE: The option is also available in the context menu (RMC / Properties).

LMC on the Position tab in the Add object dialog box

Changes the active tab in the Add object dialog box.

LMC on the field with the x (m) coordinate and enter: 1,5 (see the drawing below)

Defines the value of the x coordinate of the door defined in the wall PW0_1.

Enter Inserts the defined door in the selected wall.

LMC on the field with the x (m)coordinate and enter: 7,5(see the drawing below)

Defines a value of the x coordinate of the door defined in the wall PW0_1.

Enter Inserts the defined door in the selected wall.

Analogously, define a door in the partition wall: PW0_4(see the drawing below)

Defines doors.



LMC on the wall: W0_13(see the drawing below)



LMC on the field with the x (m) coordinate and enter: 4,5 (see the drawing below)

Defines a value of the x coordinate of the door defined in the wall W0_13.NOTE: If the coordinate system is defined on the other side of the wall, then the value of the coordinate x =1.5 should be defined.

Enter Inserts the door defined in the selected wall.

Analogously, define a door in the wall: W0_15(see the drawing below)

Defines doors.


The option used to restore automatic closing of the dialog box.

Enter Closes the Add object dialog box.




With the Ctrl key pressed down, LMC on doors defined in the following walls: W0_3, W0_13, W0_15(see the drawing below)

Selects objects. The selected doors will be highlighted in blue.



LMC on the Properties tab, and next, from the Section list select:O110*210

Changes the tab in the Object Properties dialog box and changes the door section.

Enter Accepts the change of a door section and closes the Object Properties dialog box.

(Define coordinate system the Coordinate System toolbar)

The option allowing definition of the coordinate system.




Inserts a coordinate system and closes the Coordinate System dialog box.

1.2.9. Definition of Slabs

Edit / Default Values / Options Opens the Default Options dialog box.

In the Slab field select the slab support method - fixed denoted by the symbol:

Changes the slab support method.

Closes the Default Options dialog box.


LMC on the fields:Doors ( disappears);Beams; Slabs; Floor cuts/openings( displays)




LMC on the fields:Walls; Partition walls( disappears)

The option allows switching off display of names of partition walls in the graphical viewer.


(Slab - the Objects toolbar) The option allows definition of slabs in a structure model.

(Snap cursor to grid nodes - the Snap toolbar)

Selects the option that allows snapping the cursor to the grid nodes.NOTE: The option may already be switched on by default.

LMC one by one on the following points:1; 2 ; 3 ; 4 ; 1 (see the drawing below)

Defines first slab.



LMC one by one on the following points:1; 5 ; 6 ; 7 ; 8 ; 2 ; 1(see the drawing above)

Defines the next slab.

LMC one by one on the following points:4; 9 ; 10 ; 11 ; 12 ; 3 ; 4(see the drawing above)

Defines the next slab.

(Add Specially - the Objects toolbar)

Activates the special definition mode for slabs.

LMC inside the rooms:a ; b ; c ; d ; e ; f(see the drawing above)

Defines next slabs.NOTE: The model with defined slabs is presented in the drawing below.

(Add Specially - the Objects toolbar)Turns off the special definition mode for slabs.

LMC one by one on the following points:13 ; 14 ; 15 ; 16 ; 13(see the drawing above)

Definition of a slab (staircase landing).

(Select - the Objects toolbar) Selects the option that allows selection of elements.NOTE: The option is also available in the context menu (RMC / Select).

LMC on the last-defined slab (landing)

Selects objects. The selected slab will be highlighted in blue.







LMC on the field with the z[m] coordinate of 1st and 2nd point of the slab and enter:1,50(the remaining coordinates will be modified automatically)

Changes the height (z coordinate) of the selected slab.

Enter Accepts the change of the slab height and closes the Object Properties dialog box.

(Floor Cut/Opening - the Objects toolbar)

The option allows cutting out an opening in the defined slab.

LMC on the grid nodes with the following coordinates:{9,0 8,0} ; {11,0 8,0} ; {11,0 10,0} ; {9,0 10,0} ; {9,0 8,0}(see the drawing below)

Defines a floor cut/opening.



1.2.10. Definition of Stairs


LMC on the fields:Beams; Slabs ( disappears)Stairs ( displays)



(Stairs - the Objects toolbar) The option allows definition of stairs in a structure model.

LMC one by one on the following points:1 ; 2 ; 3 ; 4 ; 1(see the drawing below)

Defines first flight of stairs.

LMC one by one on the following points:3 ; 4 ; 5 ; 6 ; 3(see the drawing below)

Defines second flight of stairs.


LMC on first flight of stairs (defined by points 1,2,3,4)

Selects objects. The selected flight of stairs will be highlighted in blue.







LMC on the field with the z[m] coordinate of 2nd point of stairs and enter:1,50(the coordinate of 3rd point will change automatically)

Changes the height (z coordinate) of the selected flight of stairs.

Enter Accepts the change in height of the flight of stairs and closes the Object Properties dialog box.


The option allows switching on display of all objects in a structure model.

LMC on the fields:Continuous footings; Spread footings; Rooms ( disappears)

Selected objects will not be displayed in the graphical viewer.


From the View menu select the Architectural option(see the drawing below)

Changes the element display type.NOTE: The option is also available through the key shortcut F10.



1.2.11. Copying stories

From the View menu select the Structural option


From the Story menu select the Copy option

Opens the Copy current story dialog box.

In the to: field enter the value: 2 Specifies a number and position of copied stories.

Closes the Copy current story dialog box.

With the Ctrl key pressed down, LMC select, and next, using the Delete button, delete one by one elements of the last story so that only the objects presented in the drawing below remain

Deletes selected elements of the last story.NOTE: It is also possible to select elements by means of window selection (pressing down the left mouse button (LMC) select a rectangular area) in the following two ways:- a window defined from left to right (selects elements positioned entirely inside the window)- a window defined from right to left (selects elements positioned inside the window along with all objects that intersect with the line of the selection window).


The option allows switching on display of all objects in astructure model.




(3D (Whole Building) - the 3D View toolbar)

The option that allows 3D display of a whole building.

(Model with Rendering - the 3D View toolbar)

The option that allows display of a model with rendering.

From the View menu select the Architectural option(compare with the drawing in the introduction to the example)


1.3. Definition of LoadsFrom the View menu select the Structural option


(Default Loads - the Loads toolbar)

Opens the Default Loads dialog box for definition of load parameters.

LMC on the tree option called LIVE / Live in the left panel of the Default Loads dialog box

Selects the load group Live. The background of the active load type fills with a navy blue color.

LMC on the Planar field in the right panel of the Default Loads dialog box an enter:5,0

Assigns a default value for planar loads 5,0 [kPa] to the Live group.

(Add) Adds a new load group with a default name Live(1). The background of the active load type fills with a navy blue color.

LMC on the Planar field in the right panel of the Default Loads dialog box an enter:3,0

Assigns a default value for planar loads 3,0 [kPa] to the Live(1) group.

LMC on the tree option called WINDin the left panel of the Default Loads dialog box

Selects the load group WIND. The background of the active load type fills with a navy blue color.




Saves the defined default loads and closes the Default Loads dialog box.

LMC - from the Story no. list on the Story toolbar select: 0

Changes the current story.

(Planar Load - the Loads toolbar)

The option allows definition of planar loads in a structure model.

LMC - from the Load nature list on the Loads toolbar select the following group: Live

Changes the current load group.

LMC indicate one by one the floor slabs marked in the drawing below

Defines groups of loads on the selected floor slabs.



LMC - from the list on the Loadstoolbar select the following group:Live(1)




(Add - the Loads toolbar) The option allows manual combination of load patterns.Opens the Add Load Pattern dialog box.


With the Ctrl key pressed down, LMC select - in the graphical viewer - one by one the load symbol defined on slabs marked in the drawing below (after being clicked, the load symbol will be highlighted)

Defines a load pattern.NOTE: Slabs in the drawings below are highlighted only for better visualization.



Adds a defined load pattern.



Define analogously the load patterns presented in the drawings below

Defines next load patterns.

Closes the Add Load Pattern dialog box.





(Planar Load - the Loads toolbar)

The option allows definition of planar loads in a structure model.





LMC - from the list on the Loadstoolbar select the following group:Live


LMC on the slab marked in the drawing below

Defines a load on the selected floor slab.

(Add - the Loads toolbar) The option allows manual combination of load patterns.Opens the Add Load Pattern dialog box.


Analogously to definition of load patterns on story 0, define the load patterns presented in the drawings below

Defines next load patterns.



Closes the Add Load Pattern dialog box.



(Display - the Loads toolbar) The option allows display of defined load patterns. Opens the Load Patterns dialog box.NOTE: Numbers of loads depend on the order they were defined, therefore, there may appear differences in numbers of individual load patterns.

LMC one by one on the defined load patterns in the Load Patterns dialog box

Displays load patterns in the graphical viewer in the 3D view. Compare to the drawings of load patterns from pages 26-28.NOTE: Load patterns are presented on defined stories:1-5 on story 06-9 on story 1.



Closes the Load Patterns dialog box.


The option that allows 3D display of a whole building.



From the top menu selectFile / Save As..., and then define the name:

Model.geo and

Saves the defined structure model to the Model.geo file.

NOTE:Calculations presented below may be performed independently, by means of a method selected by the user.

1.4. Calculations

1.4.1. Simplified Calculations - Trapezoidal and Triangular Method

From the top menu File / Openselect the file:

Model.geo and

Opens the Open dialog box and next, selects the Model.geo file with the defined structure model.



(Calculations of current story -the Calculations toolbar)

The option allows performing calculations for the current story. Opens the Calculations of current story dialog box for selection of a method and parameters of calculations.

Selects Trapezoidal and triangular method as in the drawing below.



Starts calculations of the current story.

(Display Results - the Calculations toolbar)

The option that allows presenting results of performed calculations. Opens the Display dialog box.NOTE1: The option is also available in the context menu (RMC / Display / Results).NOTE2: The structure view will change automatically from structural to computational. The option allowing the change of a view is also available through the key shortcut F8.

Select ( , , ) and the remaining parameters as in the drawing below.

Zooms in the calculation results (values).


Compare the results with the drawing below.



(XY Projection - the 3D View toolbar)

The option that allows presenting a model in the XY plane.

From the View menu select the Structural option



LMC on the Objects tab in the opened Display dialog box



LMC on the fields:Beams; Walls; Slabs; Partition walls( displays)




LMC on the field:Slabs ( displays)

The option allows displaying names of slabs in the graphical viewer.

LMC on the Loads tab in the opened Display dialog box


LMC on the field:Planar ( disappears)

The option allows displaying planar loads in the graphical viewer.





LMC on the symbol of slab SLO_5marked in blue in the drawing below

Selects objects. The selected floor slab will be highlighted in blue.



LMC on the Calculation options tab in the opened Object Propertiesdialog box


(Define main direction according to an object)

The option allowing definition of the main direction.

LMC in the graphical viewer indicate the shorter side of the slab

Defines the main direction.

Analogously, define the main direction for the slab:SLO_8

Defines the main direction for selected slabs.NOTE: The symbol of the slab main direction will change (see the drawing below).



Drawing 1.41






LMC on the field:Slabs ( disappears)




LMC on the fields:Slabs ( disappears)Beams ( displays)




LMC on beam B0_5 marked in blue in the drawing below

Selects objects. The selected beam will be highlighted in blue.







LMC in the Support column deselect beam supports at points 3and 5 ( disappears)(see the drawing below)

Deselects beam supports.

Enter Closes the Object Properties dialog box.






(3D (Current Story) - the 3D View toolbar)

The option that allows 3D display of the current story.

(Calculations of current story -the Calculations toolbar)

The option allows performing calculations for the current story. Opens the Calculations of current story dialog box for selection of a method and parameters of calculations.NOTE: Select the method and parameters as in the previous calculations.



The option that allows presenting results of performed calculations. Opens the Display dialog box.NOTE: Select the parameters as in the previous calculations.





1.4.2. Simplified Calculations - Simplified FE Method


Model.geo and


(Calculations of Whole Structure - the Calculations toolbar)

The option allows performing calculations for a whole structure.

Selects Simplified FE method as in the drawing below.

Starts calculations for a whole structure.





Select ( , ) and the remaining parameters as in the drawing below.

Zooms in the calculation results (values).






Select ( ) and the remaining parameters as in the drawing below.




(XY Projection - the 3D View toolbar)

The option that allows presenting a model in the XY plane.




LMC on the fields:Beams ( displays)







LMC on beam B1_5 (marked in blue in the drawing above)

Selects objects. The selected beam will be highlighted in blue.



LMC on the Results tab in the opened Object Properties dialog box









LMC on the fields:Walls ( displays)

The option allows displaying selected objects (walls) in the graphical viewer.



LMC on the fields:Beams ( disappears)Walls ( displays)

The option allows displaying names of walls in the graphical viewer.



Pressing down the Ctrl keyLMC one by one on the walls W1_1; W1_2; W1_3; W1_4 (see the drawing below)









Analogously, group walls on story 2 W2_1; W2_2; W2_3; W2_4), and next, on story 0 (W0_1; W0_2; W0_3; W0_4)


LMC on the fields:Walls ( disappears)Continuous footings ( displays)

The option allows displaying selected objects (continuous footings) in the graphical viewer.



LMC on the fields:Walls ( disappears)Continuous footings ( displays)

The option allows displaying names of continuous footings in the graphical viewer.



Pressing down the Ctrl keyLMC one by one on the continuous footings CF0_1 ; CF0_2 ; CF0_3 ; CF0_4(see the drawing below)











LMC on the fields:Continuous footings( disappears)

The option allows switching off display of names of continuous footings in the graphical viewer.



The option allows performing calculations for a whole structure.NOTE: Select the method and parameters as in the previous calculations.







1.4.3 Advanced Calculations - Finite Element Method


Model.geo and


(Default Loads - the Loads toolbar)

Opens the Default Loads dialog box for definition of load parameters.

LMC on the tree option called SEISMIC in the left panel of the Default Loads dialog box

Selects the load group Seismic. The background of the active load type fills with a navy blue color.




Closes the Default Loads dialog box.




LMC on the slab SL0_8: (see drawing 1.41)

Selects objects. The selected slab will be highlighted in blue.


Opens the Object Properties dialog box. NOTE: The option is also available in the context menu (RMC / Properties).



LMC in the 4th row B0_5in the column ( displays)

Changes the slab support conditions.

(the icon in the Code parametersfield)

Opens the Code Parameters dialog box.




Closes the Code Parameters dialog box.




The option allows performing calculations for a whole structure.

Selects Finite Element Method as in the drawing below.

Starts calculations for a whole structure.



Calculations / Required Reinforcement of Slabs and Walls

Opens the Required Reinforcement of Slabs and Wallsdialog box.

In the opened dialog box LMC activate the Consider selectionoption ( displays)

The option allows calculation of reinforcement for selected elements (slab SL0_8).

Starts calculations of reinforcement for a selected slab.






, (icons in the Object Properties dialog box)

The options allow presenting a map of required reinforcement. Opens the User-defined Mesh dialog box.

Adopts a default mesh step and closes the User-defined Mesh dialog box.

LMC on the field marked in green in the drawing below

Opens the User-defined Mesh dialog box.

In the User-defined Mesh dialog box, in the Mesh step field: select (enter): 0.5

Defines a mesh step.

Closes the User-defined Mesh dialog box.







The option allows presenting results of performed calculations. Opens the Display dialog box. NOTE1: The option is also available in the context menu (RMC / Display / Results). NOTE2: The structure view will change automatically from structural to computational. The option allowing the change of a view is also available through the key shortcut F8.

Select ( , , ) and the remaining parameters as in the drawing below.




LMC on the wall SL0_7(see drawing 1.2.7)

Selects objects. The selected wall will be highlighted in blue.

(Reduced Forces - the Calculations toolbar)

The option allows presenting reduced forces in selected structure elements. Opens the Reduced Forces dialog box.

In the opened Reduced Forcesdialog box, double-click LMC on the

field in the row 5 in the column 2 ( displays)

Creates and activates a new section in which reduced forces will be presented.

Selects the current selection (wall W0_7) for which reduced forces will be presented.

Select the remaining parameters as in the drawing below.

Closes the Reduced Forces dialog box.

(Zoom Window - the Zoom toolbar)

The option allows zooming the view of a selected part of the model.NOTE: If the mouse has the wheel button, then it is possible to zoom in a structure view by means of the mouse wheel; a view can be zoomed in to the point at which the mouse cursor is positioned (the mouse cursor is a viewfinder).

LMC select the area so that the selected wall is located inside it

Zooms in the wall view with a new section of reduced forces marked in red in the drawing below.



LMC on the wall W0_7 (see the drawing on page 11)

Selects objects. The selected wall will be highlighted in blue.





Select parameters as in the drawing below.NOTE: Values of reduced forces in successive sections are presented by means of the icons in the Reduced forces field.




The option allows 3D display of a whole building.

(Zoom All - the Zoom toolbar) The option allows restoring the initial view (it adjusts the current zoom so that the whole structure is shown in the program viewer).


The option allows presenting results of performed calculations. Opens the Display dialog box. NOTE: The option is also available in the context menu (RMC / Display / Results).

(the icon in the top right corner of the Display dialog box)

The option allows performing a number of edit operations without closing the dialog box.NOTE: The option is available in all dialog boxes for editing.




Saves display parameters.

The option allows animating (visualization) of vibration modes.NOTE: The remaining vibration modes can be presented analogously.

Stops the animation and closes the Animation dialog box.


Saves display parameters.

The option allows visualization and animation of structure deformations.

Stops the animation and closes the Animation dialog box.

Documents

CBS Manual Example Eng Calculations 2009