Endwall Options

Endwall Column Spacing: Specify the desired endwall column spacing. NOTE: Endwall column spacing is always entered from the LEFT corner. Therefore, if you are specifying the endwall column spacing for the left endwall, you will start at the back (high) sidewall (Work Point A). If you are specifying the endwall column spacing for the right endwall, you will start at the front (low) sidewall (Work Point C). See Building Orientation Diagram for clarification of work points.

 

MAXIMUM NUMBER OF BAYS IS 18 (18 TOTAL BAYS NOT 18 OF EACH BAY SIZE)

MAXIMUM ENDWALL COLUMN SPACING IS 30'-0".

MINIMUM ENDWALL COLUMN SPACING IS 3'-0".

 

Endwall Column Support: This option is only applicable if the endwall is open to the gable or roof. Specify whether the endwall columns are "Laterally Braced" or "Laterally Unbraced". A brief explanation of laterally braced vs. unbraced is as follows: All metal building columns are designed based on girts being attached on the outside at designated points on the columns. Along with this, flange braces are sometimes attached to these girts and to the inside flange of the column. These two components contribute greatly to the strength of the columns. When these two components are removed (as in open walls) the resulting condition is laterally unbraced and the column size must be increased to compensate for these losses. If the walls are removed and substituted with certain materials (i.e. some masonry or tilt-up systems) to replace the girts and flange braces, adding weight to the column may not be necessary. When using these materials for substitution, if both the outside flange and the flange brace angle may be attached to the wall to achieve the same effect as the girt and flange braces select "Laterally braced" as the column condition. The masonry anchors are by others.

 

Endwall Columns (Interior): This option is only applicable if the endwall is a mainframe and open to the gable. Indicate if columns to the floor can remain. If they cannot, choose "Stub Columns w/Braces". This selection will provide columns only in the gable area, that are braced back to the nearest adequate structural member using diagonal kickers.

 

Endframe Condition: This option is only available if the Endwall Condition is a main frame. Specify "Non-Expandable" (1/2 load) rigid frame, or "Expandable" full rigid frame.  A non-expandable (1/2 load) frame cannot support the loading imposed by a future addition. This should only be specified when site limitations prevent future additions from being considered.

 

An expandable end frame can support the load of a future addition in which the new building end bay is less than or equal to the existing end bay length.