User`s Manual

Steel Portal Frame EC3 RUNET software

 Roofing dimensions cladding and purlins

 Continuous or simply supported purlins

 Spacing of lateral bracing for columns

 Spacing for lateral torsional constraints for rafters

 Steel grade

 Steel sections for columns rafter and bracing. Selection from full library of profiles.

 Standard or Welded (fabricated) profiles for columns and rafters

 Snow load. Can be selected from snow region and altitude.

 Wind loading. May be selected from wind region, altitude and terrain configuration.

 Wind internal pressure

 Roof covering and ceiling load under.

 Seismic loading. May be selected from seismic region and ground type.

 Connection data, plate thickness and steel grade, bolt characteristics.

 Anchor bolt characteristics

 Concrete footing dimensions and material.

 Properties of foundation soil.

 Horizontal forces can be resisted with steel tie at column base or passive earth pressure.

6 10 steps - How to work with the program

1. To avoid the computations being slow, uncheck Auto computation on the left of button line. If it is checked , the computations are performed at the same moment you change some of the data, and your computer might be slow when it is turned on. When the computations are completed, the full design of the structure is done. If the computer is not very fast it may be a small delay when you entering data if the Auto computation is checked. So until you enter all the basic data for the structure and loads keep Auto computations unchecked.

2. Check the National Annex to be appropriate on the top right of the window. If not, reset from Parameters/National Annex or click on

3. Check snow, wind and earthquake regions. If the regions are not right, reset from

Parameters or click on the corresponding fields.

4. Enter the basic structure dimensions and loads. If the structure is flat enter first H1 and then H. Select pinned or rigid base connection . Specify the haunch size as ratio of total length. 0 when there is no haunch.

5. Select Standard or welded (fabricated) steel profiles for column or rafter sections.

Specify steel sections. Click to pre estimate the section sizes.

6. Click . If an error window appears with messages try to refine the model by changing the cross-sections.

7. Check the window with design overview if all design parts are OK.

8. Preview the Drawing of the structure and details.

9. Click preview.

to preview the design report. You can print the report from the

10. Check Auto computation . Refine the design.

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