Adding Beams and Columns

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SIMON JONES: Co-authoring a structural model in Revit.

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Creating the superstructure.

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This adding columns and beams video

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is going to present a workflow for placing steel columns

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and beams in order to model the superstructure of the building.

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During this video, we shall place

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a series of steel columns on grid intersections

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on the ground floor that extend up to the roof.

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Place steel beams between the columns

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and copy the new beams from one level up to another.

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Place beam systems to fill areas of the frame sections

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with a series of roof joists.

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In the ground floor plan, select Column

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from the structural ribbon.

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We shall select the W12 by 40 steel column in the properties

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pallette.

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In the options ball, we should select height and choose

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top of structure roof.

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We can simply place each of the columns

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on the appropriate gridding sections on the ground floor

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level.

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Use the spacebar to rotate the columns as appropriate.

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SIMON JONES: Once done, we shall switch

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to the 3D structural only view.

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And it could be seen that the columns are placed

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on the ground floor level, and they extend up

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to the top of the model.

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Once the columns have been added,

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we can then add the individual beams in between them.

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To do this, we should switch to the top of structure

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second floor level.

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And notice how the view has had unnecessary geometry

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switched off.

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And we are only seeing the columns and slab

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outline with the grid lines that have been set to half tone.

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From the structure ribbon, select Beam,

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and we should choose W18 by 46 shape.

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In the options ball, we should enable the chain option.

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So each new beam will start from the end of the previous beam.

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We also have the tag on placement option enabled

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in the ribbon to automatically annotate

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each new beam as it is added.

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Simply add the beams by snapping to each of the columns.

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SIMON JONES: Once the beams have been added,

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we will change to a fine detail level

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to see the full extent of each steel member,

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and can see how the beams are cut back where they intersect

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with the columns.

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Switching to the 3D structural only view,

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we can see the beams positioned in the 3D view.

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To copy this beam from the second floor to the roof,

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select one of the beams, right click,

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and select All Instances.

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Then select an entire model in order to select all the beans.

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Then from the modify structural framing ribbon, select Copy

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to Clipboard, or simply type Control C.

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Then from the pace menu you select a line

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to selected levels.

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In the select levels dialogue, choose top of strucutre roof

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and OK the dialogue to perform the copy paste.

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The new beams are copied up to the roof level.

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To change the size of an individual beam,

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simply select and change the size

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by selecting New Shape in the properties pallet.

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In this case, the beam has been increased in depth to W24

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by 84, but remains aligned with the top of steel second floor

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level as this insertion point is justified to the top

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of the beam.

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Revit can ultimately place an array of beams

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using the beam systems functionality.

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In this case, we shall use the beep systems to add

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roof choice between two beams.

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Switching to the top of structure view,

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we notice that new beams have not been annotated.

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So it's a copy paste procedure, did not include the tags.

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To rectify this, select Tag All from the annotate ribbon.

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In the tag all not tag dialogue, check the structural framing

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tags option and OK the dialogue, and all the untagged beams

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in the current view will then be annotated

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with the current structural framing tag.

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To create the roof choice, select Beam System

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from the structure ribbon.

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Specify the beam type in the properties pallet.

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We are electing to have a fixed number of beams that will be

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evenly spaced across the span.

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Hovering over one of the beams, making up the framing section,

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preview the layout of the beam system.

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Picking the beam will place the beam system.

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SIMON JONES: At any time, update the number of beams

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and the beams' height to ply to a different framing section.

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In this example, we will select a horizontal beam

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and place six beams.

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Notice how the beam system has been assigned

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a single annotation tag that displays

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the beam type, the number of beams, and their spacing.

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Switching to a 3D view, the beam systems

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can be seen in position.