not horz or not parrallel objects

[Anonymous]

Hey anyone know how to;

1.How would you place insulation at a 45 degree angle under concrete stairs parrallel \\ with the slope? -gravel, mesh too! \\\\
2. I'm building a flat type steel deck/concrete roof. The flat metal roof has 4" of ridgid insulation at the ridge and 2" at the eave. Then I'm going to pour a min of 4" of concrete over the highest encapsulated points. You end up with a insulated waffle slab w/ a section 8" at the ridge and 6" at the eave and a flat interior ceiling (wedge). ~ How do you draw it?

~Should I be trying to get to structural detail in Archicad, I know I can just draw over the detail, but would prefer it accurate in the model file, screws my sections.. up otherwise.

Any Help?
Thanks Alot
Mike

[Anonymous]

A good rule of thumb is to model as much as you want to see in your building sections and draw the rest in the enlarged details. It's up to you to decide how much that should be.

The hard part is that the parts you do model should still be accurate at the enlarged scales so that all you have to do is add details without modifying any modeled elements.

Regarding the questions:

1. I would use the roof tool.

2. I'm not sure I understand your roof assembly. Are you pouring concrete on the steel deck or just placing the tapered foam on it directly?
In any case the deck can be modeled with a slab (you can add/subtract to the bottom for the correct shape). the tapered insulation requires the mesh tool. The topping slab should be done with the roof tool.

[__archiben]

mike

sittingpretty wrote:
1.How would you place insulation at a 45 degree angle under concrete stairs parrallel \\ with the slope?

i wouldn't. i typically don't model the insulation, preferring to leave the air space and draw the insulation in over the top in section/detail. this is because i wouldn't really want the extensive hatching showing on 1:200/1:100 scale sections, i probably wouldn't even draw the full extent of insulation in 1:50's either - just enough to give an idea.

this probably answers your final question as well: how far do you go with the modelling? a wise man once told me (last year at ACUE nottingham) that modelling to about 1:100 would typically be adequate for most situations. "if you've got a clean model at 1:100, it's still clean at 1:20 and 1:10". or did i misinterpret that professor lohden?

2. I'm building a flat type steel deck/concrete roof. The flat metal roof has 4" of ridgid insulation at the ridge and 2" at the eave. Then I'm going to pour a min of 4" of concrete over the highest encapsulated points. You end up with a insulated waffle slab w/ a section 8" at the ridge and 6" at the eave and a flat interior ceiling (wedge). ~ How do you draw it?

if i'm understanding you correctly, you want a tapered roof make up right? there was a tip posted by petros a while back that would probably help you out:
http://archicad-talk.graphisoft.com/viewtopic.php?p=8641&highlight=roof#8641
it uses a slab and a roof - both with composite fills in their section settings - and solid element operations to effectively merge them by deleting the upper part of the slab along the line of the roof slope.

HTH
~/archiben

[Anonymous]

~/archiben wrote:
it uses a slab and a roof - both with composite fills in their section settings - and solid element operations to effectively merge them by deleting the upper part of the slab along the line of the roof slope.

Oh yeah, and that too. I often forget about SEOs and reflexively rely on old habits. Thanks for the reminder.

[Anonymous]

~/archiben wrote:
this probably answers your final question as well: how far do you go with the modelling? a wise man once told me (last year at ACUE nottingham) that modelling to about 1:100 would typically be adequate for most situations. "if you've got a clean model at 1:100, it's still clean at 1:20 and 1:10". or did i misinterpret that professor lohden?

Quite so. Clean is as clean does, Dr. Frost