XBeam2D Beams: Difference between revisions

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=== Beam properties ===
=== Beam properties ===
[[File:XBeam2DProperties.png|500px]]
'''Changing a beam'''   
 
As you are drawing a beam, help lines (horizontal and vertical) will appear connected to the previous inserted nodes. Often the node, to which you want to draw the beam, has the same x- or z-value as the previous one. In this way it is easy to insert nodes. Obviously you can adapt the coordinates afterwards numerically or by moving the node. 
 
While drawing a new beam you will see a dimension line parallel to the beam.  You can, just as you know it in AutoCad, immediately insert the distances numerically by entering the value / values  your keyboard. There are 3 possibilities for drawing a beam:
 
'''1. Drawing a beam with a known length.'''
 
      The value will appear in the dimension line. By the use of the enter-key the input is closed and the beam with that length is added.
 
'''2. Drawing a beam using relative Cartesian coordinates (dx, dz).'''
 
      Enter the distance in x-direction first. The value will appear in the dimension line. Next you type a point-comma ";" and the distance in the z-direction. The value appears in a second input field. By the use of the enter-key the input is ended and the beam is added.
 
'''3. Drawing a beam using relative polar coordinates (R, angle)'''
 
      First you enter the radius. The value appears in the dimension line. Next you type a smaller-than-key : "<'' and the angle in the xz-direction. The value appears in a second input field. By the use of the enter-key the input is ended and the beam is added.
 
'''4. Input of relative cartesian coordinates (dx, dz) or absolute cartesian coordinates (x, z).'''
 
Press the space key and the dialog box below appears. Here you can enter relative coordinates or absolute coordinates directly.
cartesiancoordinates
 
 
In this way, you can quickly insert your construction.
 
 
 
film 32x32Look at the demo.
 
 
 
Obviously it is possible to change the beams and nodes you inserted afterwards.  
 
'''Changing a beam'''


Changing a beam is possible by clicking on the beam with the left mouse button, and subsequently choose for properties by clicking with the right mouse button. There is a more easy way, namely a double click on the beam. Consequently the following dialog box will be opened.  
Changing a beam is possible by clicking on the beam with the left mouse button, and subsequently choose for properties by clicking with the right mouse button. There is a more easy way, namely a double click on the beam. Consequently the following dialog box will be opened.  


[[File:XBeam2DProperties.png|447x447px]]
 
beam
 


'''Beam number'''
'''Beam number'''
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'''Beam angle'''
'''Beam angle'''


This is the angle in degrees with the global x-axis. The direction opposite to the clockwise direction is positive.
This is the angle in degrees with the global x-axis. The direction opposite to the clockwise direction is positive.  


'''Beam type'''
'''Beam type'''


By the use of the beam type it is shown if the beam in the regarding node is connected by a hinged or a stiff connection.   
By the use of the beam type it is shown if the beam in the regarding node is connected by a hinged or a stiff connection.   
{| class="wikitable"
{| class="wikitable"
|+
|+
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'''Connection'''
 
connection


Specifically and only for the spring beam connections, the spring data needs to be inserted.  
Specifically and only for the spring beam connections, the spring data needs to be inserted.  
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See Spring beam connection
See Spring beam connection


Beam type (loads)
This type is only used at the load generator. Based on this, the snow and wind loads are generated. You have the choice between ''floor, left vertical wall, right vertical wall, roof, overhang, wall/ parapet ''. See Load generator.


'''Profile name'''
 
Load width
 
You can "override" the B- Load width truss per beam by specifying a different load width at the beginning and end of the beam. See Load generator.
 
Split into structural member sections for analysis
 
Setting whether, for the determination of the force distribution (framework calculation), the beam has to be split in in partial beams when nodes are found on the beam. This function is enabled by default.
 
 
Profile name


Here you choose the profile name
Here you choose the profile name




Angle
'''Angle'''


The angle of the profile. That is the angle relative to the local coordinate system. Normally this is zero degrees. When you want to for example enter the column rotated (so loaded at it's weak axis) you fill in 90 degrees.  
The angle of the profile. That is the angle relative to the local coordinate system. Normally this is zero degrees. When you want to for example enter the column rotated (so loaded at it's weak axis) you fill in 90 degrees.  
 
[[File:XBeam2DNewCopy.png|none|thumb|308x308px]]
 
new copy delete properties
 
 
You can also add new profiles, copy profiles and  delete profiles. Choose for Properties when you want to adapt the profile data and/or want to select another standard profile type from the profile database.  
You can also add new profiles, copy profiles and  delete profiles. Choose for Properties when you want to adapt the profile data and/or want to select another standard profile type from the profile database.  


'''Elastic soil'''
 
Elastic soil


This enables you to enter a elastic supported beam. The elastic soil  is schematized as a number of spring that can support positive reactions only. The spring distance can adjusted with "Smoothing". The spring value of the spring will be calculated automatically.  
This enables you to enter a elastic supported beam. The elastic soil  is schematized as a number of spring that can support positive reactions only. The spring distance can adjusted with "Smoothing". The spring value of the spring will be calculated automatically.


'''Modulus of Sub-Grade Reaction'''
 
Modulus of Sub-Grade Reaction


The modulus of Sub-Grade Reaction in kN/m3.
The modulus of Sub-Grade Reaction in kN/m3.


'''Global values of Sub-Grade Reaction of several types of soil.'''
 
{| class="wikitable"
Global values of Sub-Grade Reaction of several types of soil.
|+
 
!Type
Type
!Modulus Sub-Grade [kN/m3]
Modulus Sub-Grade [kN/m3]
|-
|well-graded gravel and gravel / sand mixtures, with little or no fine
well-graded gravel and gravel / sand mixtures, with little or no fine
|80000 - 130000
80000 - 130000
|-
|poorly graded gravel, with little or no fine
poorly graded gravel, with little or no fine
|80000 - 130000
80000 - 130000
|-
|gravel / sand / clay mixtures
gravel / sand / clay mixtures
|50000 - 130000
50000 - 130000
|-
|well-graded sand and gravely sand, with little or no fine
well-graded sand and gravely sand, with little or no fine
|50000 - 100000
50000 - 100000
|-
|poorly graded sand, with little or no fine
poorly graded sand, with little or no fine
|40000 - 100000
40000 - 100000
|-
|sand / clay mixtures
sand / clay mixtures
|30000 - 80000
30000 - 80000
|-
|very fine sand, loamy sand
very fine sand, loamy sand
|30000 - 50000
30000 - 50000
|-
|solid clay
solid clay
|10000 - 30000
10000 - 30000
|-
|weak clay and peat
weak clay and peat
|0 - 10000
0 - 10000
|}




 
'''Width'''
 
Width


The width of support. Default is this the width of the used section but it can be adjusted as well. The width is relevant to determine the spring value.
The width of support. Default is this the width of the used section but it can be adjusted as well. The width is relevant to determine the spring value.


'''Smoothing'''
 
Smoothing
 
Default the ctc- distance corresponds with 1x section height. It is possible to change this from 0,5x to 5x section height. This value is relevant to determine the spring value.


Default the spacing corresponds with 1x section height. It is possible to change this from 0,5x to 5x section height. This value is relevant to determine the spring value.


Input per beam
'''Input per beam'''


When this is switched on the dialog above will be displayed each time a new beam is drawn. This for example enables you to switch the profile.  
When this is switched on the dialog above will be displayed each time a new beam is drawn. This for example enables you to switch the profile.  


'''Table Beams'''
 
 
Table Beams


Beams can also be added/changed in the table Beams in the left bottom. It doesn't matter. It is also possible to change in between graphical drawing and numerical input via tables.
Beams can also be added/changed in the table Beams in the left bottom. It doesn't matter. It is also possible to change in between graphical drawing and numerical input via tables.


[[File:XBeam2DTable.png|left|thumb|1033x1033px]]
 
table_beam
 
 
 
Xframe2d
 
XFrame2d

Revision as of 13:21, 31 August 2022

In the graphical screen beams can be added very easy by drawing them. In the function bar you choose this icon: XBeam2DIcon.png

Beams are drawn as a 'polyline' just as you know it in AutoCAD. The begin node from a following beam is the end node of the last drawn beam.

It is possible, but not necessary, to draw nodes before you insert the beams. You can also start with drawing the beams, in this way the nodes will be inserted automatically.

When you draw your first beam, the dialog box shown below appears. In this box you can insert the beam connections and the profile of the beam. Use the escape-key to end the drawing of the beams.

Beam properties

Changing a beam

Changing a beam is possible by clicking on the beam with the left mouse button, and subsequently choose for properties by clicking with the right mouse button. There is a more easy way, namely a double click on the beam. Consequently the following dialog box will be opened.

XBeam2DProperties.png

Beam number

This is the number of the beam.

From node no.

This is the number of the begin node.

To node no.

This is the number of the end node.

Beam angle

This is the angle in degrees with the global x-axis. The direction opposite to the clockwise direction is positive.

Beam type

By the use of the beam type it is shown if the beam in the regarding node is connected by a hinged or a stiff connection.

Indices Description
XBeam2DConnection1.png Fixed connection both sides (default)
XBeam2DConnection2.png Fixed connection at beginning; pinned connection at the end
XBeam2DConnection3.png Pinned connection at beginning; fixed connection at the end
XBeam2DConnection4.png Both sides pinned connection
XBeam2DConnection5.png Fixed connection both sides, ONLY tension
XBeam2DConnection6.png Fixed connection at beginning; pinned connection at the end, ONLY tension
XBeam2DConnection7.png Pinned connection at beginning; fixed connection at the end, ONLY tension
XBeam2DConnection8.png Both sides pinned connection, ONLY tension
XBeam2DConnection9.png Fixed connection both sides, ONLY pressure
XBeam2DConnection10.png Fixed connection at beginning; pinned connection at the end,  ONLY pressure
XBeam2DConnection11.png Pinned connection at beginning; fixed connection at the end, ONLY pressure
XBeam2DConnection12.png Both sides pinned connection, ONLY pressure
XBeam2DConnection13.png Both sides are connected by springs
XBeam2DConnection14.png At the beginning connected by a spring; pinned connection at the end.
XBeam2DConnection16.png Pinned connection at beginning; end connected by a spring
XBeam2DConnection15.png Both sides a pinned connection


Connection

Specifically and only for the spring beam connections, the spring data needs to be inserted.

See Spring beam connection


Profile name

Here you choose the profile name


Angle

The angle of the profile. That is the angle relative to the local coordinate system. Normally this is zero degrees. When you want to for example enter the column rotated (so loaded at it's weak axis) you fill in 90 degrees.

XBeam2DNewCopy.png

You can also add new profiles, copy profiles and delete profiles. Choose for Properties when you want to adapt the profile data and/or want to select another standard profile type from the profile database.

Elastic soil

This enables you to enter a elastic supported beam. The elastic soil is schematized as a number of spring that can support positive reactions only. The spring distance can adjusted with "Smoothing". The spring value of the spring will be calculated automatically.

Modulus of Sub-Grade Reaction

The modulus of Sub-Grade Reaction in kN/m3.

Global values of Sub-Grade Reaction of several types of soil.

Type Modulus Sub-Grade [kN/m3]
well-graded gravel and gravel / sand mixtures, with little or no fine 80000 - 130000
poorly graded gravel, with little or no fine 80000 - 130000
gravel / sand / clay mixtures 50000 - 130000
well-graded sand and gravely sand, with little or no fine 50000 - 100000
poorly graded sand, with little or no fine 40000 - 100000
sand / clay mixtures 30000 - 80000
very fine sand, loamy sand 30000 - 50000
solid clay 10000 - 30000
weak clay and peat 0 - 10000


Width

The width of support. Default is this the width of the used section but it can be adjusted as well. The width is relevant to determine the spring value.

Smoothing

Default the spacing corresponds with 1x section height. It is possible to change this from 0,5x to 5x section height. This value is relevant to determine the spring value.

Input per beam

When this is switched on the dialog above will be displayed each time a new beam is drawn. This for example enables you to switch the profile.

Table Beams

Beams can also be added/changed in the table Beams in the left bottom. It doesn't matter. It is also possible to change in between graphical drawing and numerical input via tables.

XBeam2DTable.png
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