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If you use the 'collision method' for the wall/slab intersection (intersecting them by overlapping them), the building material priority values will do much of the work for you. If you already did this, you may want to check the building material priority rankings. I find these are not always what they should be. For example, if one uses 'steel framing' (higher rank than concrete) instead of 'lightweight metal framing' (lower rank than concrete), it will produce a poor result.
“The best thing about the future is that it comes one day at a time.” - Abraham Lincoln
AC27 USA on 16” 2019 MBP (2.4GHz i9 8-Core, 32GB DDR4, AMD Radeon Pro 5500M 8G GDDR5, 500GB SSD, T3s, Trackpad use) running Sonoma OS + extended w/ (2) 32" ASUS ProArt PAU32C (4K) Monitors
In follow-up to my reply, I recreated your situation and have the materials merge properly by first checking the core and skin building material priorities against each other, then colliding the wall down over the slab. I did this in section view to better see the results. You could then apply the same parameters from the successful wall to the other walls in plan view.
Note: I find it useful to create different building materials for different real-world situations. For example, I have one for FR GB and one for regular GB so they do not merge when intersecting. I assign the FR GB a higher priority, even though they are basically the same material. This helps to better predict the results when you use your composites. There are no doubt other methods, but I find this one simple and easy to manage.
The GS video may also be helpful:
“The best thing about the future is that it comes one day at a time.” - Abraham Lincoln
AC27 USA on 16” 2019 MBP (2.4GHz i9 8-Core, 32GB DDR4, AMD Radeon Pro 5500M 8G GDDR5, 500GB SSD, T3s, Trackpad use) running Sonoma OS + extended w/ (2) 32" ASUS ProArt PAU32C (4K) Monitors
By the looks of it, you have the slab set to "core top" and the wall at +0 to story. If you want the wall to cover the end of the slab, you will need to extend the wall below the story to meet the bottom of your slab composite.
If the Intersection Priority of your slab core is stronger than that of your wall core, it will clip the wall core, so only your exterior skin will be extended.
rocknkaya wrote:
thank you for answers. i think they work but what about quantities about wall? I think it changes bec wall will be at top of the slab?
The quantities should be fine.
Give it a test.
Model a wall and slab that intersect and check the quantities.
Now separate them and see if the quantities have changed.
Barry.
One of the forum moderators. Versions 6.5 to 27 i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10 Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11
