View/Update - Design Sketch Pane

This pane shows a sketch of the Wall Design Group in plan. If a Section Cut is selected in the 3D view pane, a sketch of the wall cross section at the selected Section Cut is displayed. If no Section Cut is selected, a projected plan of the entire Wall Design Group is displayed. Note that you can click in this view and then use the mouse scroll wheel to zoom in and out if your mouse has a scroll wheel. The buttons to the right behave as follows:

Menu Item/Image	Description
Show/Hide Dimensions	Click to toggle display of the dimensions in the sketch.
Show/Hide Rebar	Click to toggle display of all rebar that is intersected by the currently selected section cut. (Note that no rebar will be drawn if no section cut is selected.)
Show/Hide Axes	Click to toggle display of the global coordinate axes.
Show/Hide Angle Legend	Click to toggle display of the angle legend.
Show/Hide Elevation Legend	Click to toggle display of the elevation legend (only available when 3D view is in elevation mode).
Zoom In
Zoom Out
Zoom All	Zoom out so that everything is visible in the sketch.

The following overlays are available on the design sketch view:

Menu Item/Image	Description
Axes	This shows the global model axes. Since the design sketch is automatically rotated based on the major axis, this allows you to visualize how the section cut is oriented in global coordinates.
Angle Legend	This shows you how the major and minor axes of the section cut are oriented. The design sketch always rotates section cuts so that their major axis is in the positive X direction and their minor axis is in the positive Y direction, so this overlay is fixed.
Elevation Legend	This shows which direction (in global coordinates) the eye-point in the 3D elevation view is pointing. It is only visible when the 3D view is in elevation mode.

Setting	Description
Section Cut Local Coordinate System	The local major and minor directions for a Section Cut are determined differently based on whether the Section Cut is oriented horizontally or vertically. For horizontal Section Cuts, the major direction is chosen in the direction of the longest contiguous horizontal segment of wall. More specifically, the Section Cut is rotated clockwise about the global Z-axis from its global orientation until the longest segment is parallel to the global X-axis (see Figure below). For vertical Section Cuts, the local major axis coincides with the global Z-axis. The local minor axis is 90 degrees CCW from the local major axis.
Section Cut Forces in Local Coordinate System	The convention for expressing Section Cut forces in the local coordinate system is as follows: P - axial force V_maj - Shear force in the local major direction V_min - Shear force in the local minor direction M_maj - Moment acting in the local major direction (about the + minor axis) M_min - Moment acting in the local minor direction (about the - major axis) M_u - Resultant of M_maj and M_min which acts at an angle b CCW from + major axis

Setting

Description

Section Cut Local Coordinate System

The local major and minor directions for a Section Cut are determined differently based on whether the Section Cut is oriented horizontally or vertically. For horizontal Section Cuts, the major direction is chosen in the direction of the longest contiguous horizontal segment of wall. More specifically, the Section Cut is rotated clockwise about the global Z-axis from its global orientation until the longest segment is parallel to the global X-axis (see Figure below).

For vertical Section Cuts, the local major axis coincides with the global Z-axis. The local minor axis is 90 degrees CCW from the local major axis.

Section Cut Forces in Local Coordinate System

The convention for expressing Section Cut forces in the local coordinate system is as follows:

P - axial force
V_maj - Shear force in the local major direction
V_min - Shear force in the local minor direction
M_maj - Moment acting in the local major direction (about the + minor axis)
M_min - Moment acting in the local minor direction (about the - major axis)
M_u - Resultant of M_maj and M_min which acts at an angle b CCW from + major axis

Horizontal Section Cuts

Vertical Section Cuts

Setting	Description
Section Cut Display	The cross sectional view pane will display the Section Cut differently depending on whether the Section Cut is oriented horizontally or vertically. Horizontal Section Cuts are drawn so that the local major direction is oriented sideways as viewed on screen in the cross section view pane. As a result, a positive M_maj moment will cause compression on the right hand side of the cross section, and a positive M_min moment will cause compression at the top of the cross section. Vertical Section Cuts are drawn so that the local major direction is oriented upwards as viewed on screen in the cross section view pane. As a result, a positive M_maj moment will cause compression at the top of the cross section.

Setting

Description

Section Cut Display

The cross sectional view pane will display the Section Cut differently depending on whether the Section Cut is oriented horizontally or vertically.

Horizontal Section Cuts are drawn so that the local major direction is oriented sideways as viewed on screen in the cross section view pane. As a result, a positive M_maj moment will cause compression on the right hand side of the cross section, and a positive M_min moment will cause compression at the top of the cross section.

Vertical Section Cuts are drawn so that the local major direction is oriented upwards as viewed on screen in the cross section view pane. As a result, a positive M_maj moment will cause compression at the top of the cross section.