{"id":24613,"date":"2023-07-31T10:20:49","date_gmt":"2023-07-31T10:20:49","guid":{"rendered":"https:\/\/archiframe.fi\/?page_id=24613"},"modified":"2023-07-31T10:20:49","modified_gmt":"2023-07-31T10:20:49","slug":"creating-the-floor-structure","status":"publish","type":"page","link":"https:\/\/archiframe.fi\/en\/creating-the-floor-structure\/","title":{"rendered":"Creating the Floor Structure"},"content":{"rendered":"\n

Transcript for the video \u201cCreating the Floor Structure\u201d<\/strong><\/h2>\n\n\n\n

(00:00) In this video, we will finish the sample house by adding a floor structure to it. We will start by defining the structure of the floor as a new element type. After that, we will create floor elements and edit their layer offsets. Then we will create planks. And finally, we will edit the structure slightly by removing and adding planks manually.<\/p>\n\n\n\n

(00:24) So let\u2019s start by defining a new element type. Note that the floor structure is different for the different stories: the upper floor has gypsum boarding in its underside, which makes up the ceiling of the ground floor. The ground floor has no need for the gypsum layer. We therefore need to define two new element types.<\/p>\n\n\n\n

(00:44) Let\u2019s create the second storey floor type first. We can check the thicknesses of the different layers in the floor from the ArchiCAD element attributes. So at the top of the floor, we have 28mm of floor planks (which we will not model in ArchiFrame). The first ArchiFrame layer will be 18mm of plywood. Below that, we have 360mm thick I-beams, and then 42mm thick floor battens. Below the battens, we have a 13 mm thick layer of plasterboard.<\/p>\n\n\n\n

(01:25) Then I\u2019ll open the ArchiFrame \u201cAdd Element\u201d dialog, go to the \u201cOwn element types\u201d section and add a new element type. We already looked at creating new element types in more detail in a previous video, so I\u2019ll go through this process more quickly this time.<\/p>\n\n\n\n

(01:43) First, let\u2019s name this element type \u201cFloor 2nd storey.\u201d The ID can be \u201cF002\u201d. This element type should be based on the template for roofs and floors.<\/p>\n\n\n\n

(02:00) Then I\u2019ll add layers to the element. The first layer is the top layer, which is plywood in this case. I\u2019ll name the layer \u201cPlywood 18\u201d and choose \u201cBoarding\u201d for its type. The layer thickness is 18mm, and let\u2019s say the width and height of the boards are 1200 and 2700 mm respectively.<\/p>\n\n\n\n

(02:26) For \u201cBoard type ID\u201d I\u2019ll set \u201cPlywood 18x1200x2700.\u201d This ID will be visible in the shop list. I\u2019ll also change the ArchiCAD layer to \u201cAF floor board\u201d.<\/p>\n\n\n\n

(02:42) Then let\u2019s create a new layer for the floor joists. This will be called \u201cJoists 360\u201d and it will be based on the type \u201cFloor\/roof with sides\u201d.<\/p>\n\n\n\n

(02:56) Here is a screenshot to illustrate the difference between a floor with and without sides. The sides are always placed on those edges of the floor that are perpendicular to the floor joists. The direction of the floor joists can be edited after the floor element has been created – we will discuss this later in the video.<\/p>\n\n\n\n

(03:16) Some other settings concerning the sides, for example their material and distance from the floor edge, can be edited directly in Archiframe\u2019s Element definition dialog, as we will soon see.<\/p>\n\n\n\n

(03:29) Now let\u2019s return to the joist layer\u2019s definition, and set its ArchiCAD layer to \u201cAF floor planks\u201d. The layer thickness should be 360mm. \u201c1\u201d here means that a border will be created around the floor; here is a screenshot to illustrate what this means.<\/p>\n\n\n\n

(03:54) Let\u2019s keep the border and set \u201cblock\u201d as its material so that we can determine its dimensions freely. The thickness of the border can be for example 25 mm, while the height should be the same as the floor joists\u2019 height, 360 mm.<\/p>\n\n\n\n

(04:12) Next, let\u2019s set the joists\u2019 spacing to 600mm, and the material to I360 (which stands for 360mm tall I beams).<\/p>\n\n\n\n

(04:26) Distance to side mid determines how long the side pieces are. In the floor on the left, this distance is 500mm while on the right it is 1000mm. The length is measured from the outer edge of the floor\u2019s border to the middle of the nearest ordinary floor joist.<\/p>\n\n\n\n

(04:49) Next, let\u2019s add the battens below the floor joists. The name of this layer will be \u201cBattens 42×42\u201d and it should be based on \u201cFraming horizontal.\u201d Let\u2019s add the pieces to the ArchiCAD layer \u201cAF floor studs\u201d… and set the layer\u2019s thickness to 42 mm. We don\u2019t need to make changes to most of these settings here, but at the bottom we still need to choose the 42×42 mm plank as our material. The spacing should also be set to 300mm.<\/p>\n\n\n\n

(05:29) Finally, let\u2019s add the gypsum board layer to the floor. This layer will be based on \u201cBoarding\u201d and I\u2019ll name it \u201cGypsum ceil 13\u201d. Let\u2019s add these boards to the \u201cAF Floor board\u201d layer and set the layer thickness to 13mm. I\u2019ll again use 1200 and 2700 mm for the width and height of the boards. And I\u2019ll add a board type ID as well.<\/p>\n\n\n\n

(06:07) Now we\u2019ve defined all the layers we need in this floor. Next, we must edit these settings here for each layer. So let\u2019s start by selecting the floor joist layer and setting its type to \u201cMain framing\u201d. This layer should not follow any other layer, since the boarding and other pieces are the ones that are dependent on the joists. We can call the front anchor of this layer \u201cjoists top\u201d and the back side \u201cjoists bottom\u201d.<\/p>\n\n\n\n

(06:37) Then let\u2019s determine these same settings for the other layers. So the plywood\u2019s anchors will be called \u201cplywood top\u201d and \u201cplywood bottom\u201d. Its type is \u201cboarding exterior\u201d and it follows the joist layer.<\/p>\n\n\n\n

(06:56) Next, let\u2019s do the battens. So again, the anchors will be called \u201cbattens top\u201d and \u201cbottom\u201d, the type is studding interior and the layer should follow the joists.<\/p>\n\n\n\n

(07:11) And finally, the gypsum layer is done in the same way.<\/p>\n\n\n\n

(07:23) Now I\u2019ll click OK to save this element type. Then I\u2019ll immediately reopen it and duplicate it, this time renaming it \u201cFloor ground level\u201d. As we discussed, the structure for this floor is exactly the same as for the second storey except it doesn\u2019t need the gypsum boarding layer. The lack of boarding also makes the battens unnecessary. I\u2019ll therefore delete these two layers.<\/p>\n\n\n\n

(07:57) I\u2019ll also change the joist layer\u2019s type to \u201croof\/floor with no sides\u201d. In order to keep the joists in the second storey floor unchanged, I need to duplicate the joists\u2019 layer type and make changes to the duplicate. I\u2019ll rename the duplicate \u201cjoists no sides 360\u201d and change the layer type. <\/p>\n\n\n\n

(08:20) Then I\u2019ll save the ground level floor element type.<\/p>\n\n\n\n

(08:26) Next, we can create the floor elements. Let\u2019s start with the ground level because it\u2019s simpler. To create the element, I\u2019ll first select the ArchiCAD floor slab. In the Add element dialog, I\u2019ll then choose the ground level floor element type we just created.<\/p>\n\n\n\n

(08:44) Then I\u2019ll determine that the ArchiFrame element\u2019s plywood layer\u2019s top should be positioned 28mm below the top of the ArchiCAD slab. So I\u2019ll type in -28 in the \u201cMove up\u201d section. This is because the ArchiCAD floor has 28mm thick floor boards as its top layer, while our ArchiFrame element doesn\u2019t. Then I\u2019ll set an ArchiCAD layer for the element: \u201cAF Floor Elems\u201d.<\/p>\n\n\n\n

(09:14) And now I\u2019m ready to create the element! I\u2019ll do so by selecting the ArchiCAD slab on the ground level and clicking \u201cCreate new element from selection\u201d.<\/p>\n\n\n\n

(09:32) So now you can see our floor element. The problem with this floor is that all the layers of the floor are the same size. In reality, the plank layer should be larger than the plywood layer above it, since the planks support the walls of the house while the plywood does not.The planks layer should therefore be offset by 228 mm.<\/p>\n\n\n\n

(09:57) To make the offset, we need to use the \u201cTo fill\u201d tool in the floor plan view. In the floor plan, it is difficult to tell apart the different layers in the floor, since they\u2019re all on top of one another. I\u2019ll therefore select the planks layer of the floor element and change its ArchiCAD layer to \u201cFloor element planks layer.\u201d This will help me select the planks layer in the floor plan.<\/p>\n\n\n\n

(10:22) Then I\u2019ll go to the floor plan view and turn on a layer combination where only the planks layer of the floor element is visible.<\/p>\n\n\n\n

(10:33) Next, I\u2019ll select the ArchiFrame element and turn it into a fill with the To Fill tool. We already looked at this tool in the video about creating complex wall elements, so I won\u2019t explain the steps as thoroughly here.<\/p>\n\n\n\n

(10:51) Now I\u2019ll measure how much this layer should be offset – it should be 228mm bigger than it is now. Then I\u2019ll offset the fill by this amount.<\/p>\n\n\n\n

(11:05) And now I\u2019ll use pick from fill to transfer this change to the floor element as well. In the floor plan view I can easily check whether the offset produced the result we wanted. So here we can see that the floor\u2019s planks extend to the outer edge of the wall framing, which is indeed what we wanted.<\/p>\n\n\n\n

(11:26) Next, let\u2019s determine the direction of the planks. In our case, we want the planks to be directed along the Y-axis as shown on the left. This allows us to have shorter spans than in the alternative, where the planks are directed along the X-axis.<\/p>\n\n\n\n

(11:44) One way to determine the direction of the planks is manually and separately for each layer in the floor element. I\u2019ll suspend ArchiCAD groups and select the planks layer. Then I\u2019ll click on the purple control point near the bottom left corner of the element. This control point is always located one meter above the bottom left corner of the bounding box of the element.<\/p>\n\n\n\n

(12:08) Once the control point has been clicked, an ArchiCAD toolbar will appear and from it I\u2019ll select the \u201cMove node\u201d tool. A rotation circle will appear which determines the direction of the planks. The default direction of the planks is along the Y-axis, but with this tool I could rotate them by 90 degrees or some other amount. So by clicking on the 90 degree mark I would get this result which I already showed you earlier.<\/p>\n\n\n\n

(12:39) This procedure would have to be repeated for battens, boards and other layers of the floor individually – so with this method, it is not possible to rotate all the layers of the floor at once.<\/p>\n\n\n\n

(12:53) There is another way to change the direction of the planks and boards which may be useful especially if you need to rotate all the layers in several elements at once.<\/p>\n\n\n\n

(13:03) Here is a screenshot to illustrate this, showing three floor elements on top of one another. To change the direction of all the layers of the floor elements in different stories, first select all the elements and go to ArchiCAD object settings, for example by pressing Ctrl+T. Then, in the internal settings of the element, change the iRotY value from 0 degrees to the desired amount.<\/p>\n\n\n\n

(13:37) So now you can see that the different layers in each element have been rotated.<\/p>\n\n\n\n

(13:43) Note that if your floor is simple, consisting for example of just one plank layer, it may be easier to create it manually by copying a plank, so that you don\u2019t need to define an element type and rotate the element.<\/p>\n\n\n\n

(13:57) Now let\u2019s return to the sample house. Just to clarify, in our case we don\u2019t need to rotate any of the layers in the floor. So next, I\u2019ll give the floor an element ID, for example F-001.<\/p>\n\n\n\n

(14:13) Then l\u2019ll go to the 3D view and create planks. The plywood layer on top of the planks looks good, so we don\u2019t need to edit it further. I\u2019ll therefore hide that layer to have a look at the planks layer below.<\/p>\n\n\n\n

(14:33) The planks are directed along the Y-axis just like we wanted. We don\u2019t need to edit them manually for now.<\/p>\n\n\n\n

(14:43) The second storey floor is done in the same way, except it uses another element type and requires slightly more manual editing. I\u2019ll skip to the finished result before manual editing is done.<\/p>\n\n\n\n

(14:56) So here you can see that once again, the planks layer is offset outwards compared to the other layers in the floor. In this storey, we have holes for the stairs and for the chimney which makes the shape of the floor more complicated than before.<\/p>\n\n\n\n

(15:11) Now I\u2019ll turn on the layers containing boarding and planks.<\/p>\n\n\n\n

(15:23) So the floor contains plywood on top, floor planks, battens and gypsum board. If I isolate the planks, we see that the \u201csides\u201d in the floor structure haven\u2019t turned out perfectly. I\u2019ll therefore navigate to the floor plan view to edit them.<\/p>\n\n\n\n

(15:46) Before I start editing, I want to point out that our floor is aligned to the construction grid. This is because when we created the floor planks, we had the \u201cuse grid\u201d option checked (just like we did when creating the wall planks). So here you can see the benefit of using the grid: the long floor planks and the shorter side pieces are both placed directly above the wall studs in the storey below (shown here as a trace reference). For more information on using the grid, please see the video on creating wall planks.<\/p>\n\n\n\n

(16:19) Next, let\u2019s start the manual editing by suspending groups and removing these two \u201clayers\u201d of side pieces. Then I\u2019ll copy one of the floor planks to fill the gaps. The spacing between planks is 600mm.<\/p>\n\n\n\n

(16:45) Now I\u2019ll just add extra planks beside the stair opening. It also looks like I need to trim a few pieces a little bit.<\/p>\n\n\n\n

(17:38) So now the floor structure is complete! Let\u2019s check that the elevation drawing is made correctly.<\/p>\n\n\n\n

(17:47) As in the case of walls, the elevation drawings for the floors were created automatically when planks were created. The elevation drawings look good for both stories, so I\u2019ll move on to the 3D view.<\/p>\n\n\n\n

(18:21) So here you can see the how the floor planks align with the wall studs, and how the floor structure reaches the outer edge of the wall structure.<\/p>\n\n\n\n

(18:37) And here is a view of the house with all the ArchiFrame structures visible! I could still add a balcony and a terrace for the house, but those can be done with the same tools that we\u2019ve already used in these tutorials. So here\u2019s the final result for now!<\/p>\n","protected":false},"excerpt":{"rendered":"

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