File (Frame Analysis)

Last modified by Fredrik Lagerström on 2022/09/02 13:49

The File menu option contains several options that are identical to other Windows programs, except for the Wizards option as seen below. Wizards is a separate module that can be bought to the Frame Analysis program.


Wizards

The Eurocode Wizard option shows a dialogue box where various pre-defined beams, frames, rafters and trusses can be stated easily. For some of them roof, snow, wind and imposed loads as well as load combinations for ultimate- and serviceability limit states can be generated automatically according to Eurocode.

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Start the Wizards command by pressing the magic wand icon (1625129648341-299.png)

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Common for most trusses is the wind-input.

Z-reference is the bottommost point of the truss, usually set to the height of the building minus the height of the roof structure. I.e. if the value is set to 0 the truss would be standing on the ground. In EN 1991-1-4 it is reffered to as ze = h.

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Building width: The parameter set as b in the picture above

c/c distance: Spacing of the trusses

Internal wind factor: A factor for the internal wind factor.


Truss

Necessary geometrical data and current loads are stated for Truss.

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Types

Two types of trusses can be generated from this wizard by activating any of the buttons at the bottom to the right.

Bracing

If this option is activated the top chord is assumed laterally supported the upper edge when a design is  performed.

Preview

Current geometry can be studied in the wizard with the Preview option.

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Loads

The following loads will be defined:

Dead load

The dead load of the roof on the left- and the right hand of the roof are stated. Dead load can also be generated automatically via load generation as seen below.

Snow load

The snow load on the left- and the right hand of the roof is stated for different snow situations.

Wind load

The wind load on the left- and the right hand of the roof is stated for different wind situations.

Loads and load combinations can also be generated automatically by the program, see example in the appendix.

Two types of trusses can be generated from this wizard by activating any of the buttons at the bottom to the right.


Frame truss

All input is done according to Truss .

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Bracing

If this option is activated the top chord is assumed laterally supported the upper edge when a design is  performed.

Preview

Current geometry can be studied in the wizard with the Preview option.

Loads

In addition to what has been described for Truss the following loads are stated:

Dead load

G2 Addition for furnished part.
G3 Self weight collar beams.
G4 Self weight attic floor.
G5 Addition for furnished part.
G6 Self weight post wall.

Imposed load

This is where Imposed load for rooms in residential buildings, dead and live part and load for attic space, live part are stated.

Loads and load combinations can also be generated automatically by the program.


W-truss

All input is done according to Truss and Frame truss.

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Types

W and WW trusses can be generated from this Wizard by activating any of the bottom right buttons.

Bracing

If this option is activated the top chord is assumed laterally supported the upper edge when a design is  performed.

Preview

Current geometry can be studied in the wizard with the Preview option.

Loads

Loads and load combinations can also be generated automatically by the program.


Swedish truss

All input is done according to Truss and Frame truss.

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Bracing

If this option is activated the top chord is assumed laterally supported the upper edge when a design is  performed.

Preview

Current geometry can be studied in the wizard with the Preview option.


T-truss

All input is done according to Truss and Frame truss.

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Types

Two types of T-trusses can be generated from this wizard by activating any of the bottom right buttons.

Bracing

If this option is activated the top chord is assumed laterally supported the upper edge when a design is  performed.

Preview

Current geometry can be studied in the wizard with the Preview option.


Rafter

All input is done according to Truss and Frame truss.

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Types

Two types of rafters can be generated from this wizard by activating any of the bottom right buttons.

Bracing

If this option is activated the top chord is assumed laterally supported the upper edge when a design is  performed.

Preview

Current geometry can be studied in the wizard with the Preview option.


Frame type 1

All input is done according to Truss and Frame truss.

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Bracing

If this option is activated the top chord is assumed laterally supported the upper edge when a design is  performed.

Preview

Current geometry can be studied in the wizard with the Preview option.


Frame type 2

All input is done according to Truss and Frame truss.

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Bracing

If this option is activated the top chord is assumed laterally supported the upper edge when a design is  performed.

Preview

Current geometry can be studied in the wizard with the Preview option.


Saddle truss

All input is done according to Truss and Frame truss.

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Loads and load combinations can also be generated automatically by the program.


Ridge truss

All input is done according to Truss and Frame truss.

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Two types of ridge trusses can be generated from this Wizard by activating any of the bottom right buttons.

Loads and load combinations can also be generated automatically by the program.


Parallel truss

All input is done according to Truss and Frame truss.

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Loads and load combinations can also be generated automatically by the program.


Reversed truss

All input is done according to Truss and Frame truss.

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Loads and load combinations can also be generated automatically by the program.


Purlin

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Number of spans, left and right end-support, overlap distance for each span, loads and a potential reduction of stiffness at overlaps, are stated for purlins. An image of the beam can be previewed in the Wizard while defining input data.


Gerber beam

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  • Number of spans
  • Left end-support conditions
  • Right end-support conditions
  • Span length(s)
  • Loads
  • Distance to hinges

An image of the beam can be previewed in the Wizard while defining input data.


Continuous beam

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  • Number of spans
  • Left end-support conditions
  • Right end-support conditions
  • Span length(s)

An image of the beam can be previewed in the Wizard while defining input data.


Column

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The length and the upper and lower end-support are stated for columns.


Gridframe

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The number of stories and spans are defined with their measures in order to quickly build up a frame with a lot of spans and stories.


Arch

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This is where the span and height of the arch and the number of members the arch is to be divided into are stated. The height of the arch has to be more than half of the span.

Preview

With the Preview option current geometry can be studied in the wizard.

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It is possible to give R negative values for an up-side-down arch:

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