Floor Load / Wall Load — calculate loads and save settings
The Floor Load / Wall Load commands in BimSpeed.STR → Design open floor and wall calculators. This guide covers 2026.10.23.2046 / Revit 2024. They calculate load tables and save build-ups; assigning loads to analytical elements is a separate step.
The captured Revit 2024 session shows some blank column and button labels. The reference below explains the reviewed version; use only controls you can identify in the actual UI. Saving a Floor Load build-up through the blank button has not been verified. Read the UI limitation below before editing data.
Floor Load
| Tab / control | Use and effect |
|---|---|
| Load calculation / Floor type | Loads a saved build-up and live-load type. This is the calculator's own catalogue, not direct selection of a Revit Floor Type. |
| Add new / Edit name / Delete | Adds, renames or removes a calculator build-up, not Revit floors. |
| Material name | Selects layer material and loads its unit weight and load factor from the material database. |
| Thickness | Millimetres. Layer load = thickness/1000 × unit weight; check the displayed units. |
| Unit weight | kN/m³ in the material table. Do not enter kg/m³ mass density without converting the project's data appropriately. |
| Load factor | Dimensionless multiplier for the layer. |
| Standard / Design load | Layer results in kN/m²; design load includes the factor. |
| Add layer / Remove layer | Changes the selected build-up. Removing a layer removes its load contribution. |
| Live load lookup / Area | Filters live-load entries by area; All shows the complete catalogue. |
| Type / Qtc / Gamma | Live-load type, standard load in kN/m² and factor. Press Apply live load to use the selected row; highlighting it alone is insufficient. |
| Material database | Edits names, unit weights and default factors. Add/Remove changes the catalogue; check dependent layers before removal. |
| Save all settings | Writes material data and the current build-up to the calculator settings file. Does not create Revit/ETABS area loads. |
| Close | Closes the window. Do not assume edited cells were persisted before Save. |
Arithmetic example using the tool's formula: a 20 mm layer at 20 kN/m³ gives 0.4 kN/m²; factor 1.1 gives 0.44 kN/m². At 40 mm the results are 0.8 and 0.88 kN/m². These are arithmetic examples, not recommended design loads.
Wall Load
| Field / action | Units and verification |
|---|---|
| Story name / Elevation / Story height | Name, elevation in m and height difference in m between consecutive Revit Levels. The highest Level has no following Level and does not define another interval. |
| Beam height / Wall height | Millimetres. Inspect the effective wall height used for each row; changing beam height changes that value. |
| Standard / Design load | Line load results in kN/m for each story row. |
| Add row / Delete row | Adds/removes calculation rows, not Revit Levels. |
| Wall build-up / Name | Select a saved definition or enter a new name before Add/Update. |
| Brick thickness | Millimetres; combined with brick unit weight for the brick area load. |
| Brick unit weight | kN/m³. |
| Plaster thickness | Millimetres per face; the calculation includes two faces. |
| Plaster unit weight | kN/m³. |
| Brick / plaster factors | Separate multipliers for the two design-load contributions. |
| Add / Update | Updates an existing name or adds a new definition. Does not write the file until Save settings. |
| Delete | Removes the selected definition, not a Revit wall. |
| Save settings / Close | Saves definitions to a file / closes the window. The table is not an assigned beam load. |
The implemented standard load formula is (t_brick × γ_brick + 2 × t_plaster × γ_plaster) × h_wall, with thickness and height in metres. Design load applies each material's factor before summing. Increasing wall height increases line load; negative height is clamped to zero in the calculation.
Verify a representative row by hand and reopen saved settings to check persistence. Assigning these values to an analytical model requires a separate load-assignment workflow and inspection of actual load elements.
The reviewed Floor Load and Wall Load UIs use Vietnamese labels. No English UI capture is confirmed; this English page does not present Vietnamese screenshots as localized English evidence.
Complete a floor-load table
Choose Floor type in the calculation tab. To preserve a saved build-up, use Add new and give the trial a distinct name before editing layers. Select each material, enter thickness and recheck its loaded unit weight and factor. Press Enter or leave the cell to commit the edit; check the row's standard/design loads and displayed totals. Select the intended row before Remove layer.
In Live load lookup, select Area, read the chosen row's Type, Qtc and Gamma, then press Apply live load. Return to calculation and confirm the applied live load. Highlighting a lookup row alone does not apply it. Material database edits affect shared catalogue data, so create a separate material for an isolated trial. Use Save all settings, close and reopen to verify the saved build-up and layers.
Complete a wall-load table
Choose a wall build-up and inspect each level interval. Elevation and storey height are in metres; beam and wall heights are in mm. Do not enter 3.6 into a millimetre field to represent 3.6 m. When trying a deeper beam, recheck effective wall height and line load on that row. The add/remove-row buttons affect calculation rows, not project Levels.
Enter the name, brick/plaster thicknesses, unit weights and separate factors, then use the add/update button. Reselect the build-up and verify its values before saving settings. Deleting a build-up differs from deleting a level-table row. Closing does not substitute for saving. Neither window has a Revit-load generation button: apply loads through the separate analytical workflow and check units, tributary scope and load case there. The wall calculator's actual labels may remain Vietnamese; the table above maps those labels to their meanings.
UI language and calculator evidence
The checked installation renders both load calculators in Vietnamese, even in English Revit. No English tool screenshots are presented here. The Vietnamese guide shows their actual UI. Floor Load displays a selected build-up with 1.340 kN/m² standard dead load, 2.000 kN/m² live load and 3.340 kN/m² total; these are calculator values, not assigned Revit loads. The wall table reads an existing EVN level interval: 3.90 m storey height, 200 mm beam depth, 3700 mm wall height and 9.32/11.72 kN/m standard/design line loads.
Some Floor Load column headings and buttons are blank in the captured session. Do not guess an unlabelled action. Settings persistence through those blank buttons has not been confirmed. If this occurs, confirm the version and opening workflow with BIMSpeed support before using an unidentified control. This limitation does not affect the meanings and units explained above.