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[Aramco]

Will a ramp hold up whats beneath it? (Not above, the beneath is important.) Like, say I had this--

FFFFF
      SR
      FFFFFF

(F=Floor, R=Ramp, and S=Support.)

Then I pulled a lever to remove the support. Would the ramp hold up the platform below?

[Sphalerite]

I think so, but the ramp will be usuable even before you remove the support.  Ramps need walls next to them for dwarves to be able to use them.  Supports don't count.

[Aramco]

I think so, but the ramp will be usuable even before you remove the support.  Ramps need walls next to them for dwarves to be able to use them.  Supports don't count.

Darn. I need the ramp usable. Maybe a staircase? Would that hold it up?

[MagmaMcFry]

Do ramps really connect to the z-level above? I think they are the same as floors.

*goes testing*

[Corona688]

Only if the up stair matched a down stair above it.

[NecroRebel]

Staircases provide support, yes.

There's no known way of having someone go down into an area that you can collapse at will, since staircases provide support and ramps need a wall to function, and the wall provides support. You could, however, have the staircase away from where it would provide support and accessed via a diagonal or a bridge/hatch that doesn't provide support. Like this (top view):

+++++
+.+.+
.X.X.
.....

Xs are staircases, +s are floors, .s are open space. Have the level below supported by a support hanging from the floor above, and when the support fails/is blown out, the level below will collapse if the support is the only thing holding it up.

[Corona688]

Or just detach the area you want to collapse from the rest with grates.  grates don't support anything.

[MagmaMcFry]

Testing done.

Code: [Select]

A section of the cavern has collapsed!
Ramps don't provide support to floors above. Hypothesis proved.

And always remember, dwarven children: Your grandpa got squished in the name of !!SCIENCE!!.

[Aramco]

Hmmm... Can a dwarf deconstruct a staircase from above?

[gtmattz]

Hmmm... Can a dwarf deconstruct a staircase from above?

No.

[FuzzyZergling]

Hmmm... Can a dwarf deconstruct a staircase from above?

I'm pretty sure dwarves deconstruct staircases from the top down.
I could be wrong.

[Aramco]

Ah well, either way, one sacrificed dwarf in the name of my current science isn't a big deal.

[gtmattz]

Hmmm... Can a dwarf deconstruct a staircase from above?

I'm pretty sure dwarves deconstruct staircases from the top down.
I could be wrong.

Dwarves will deconstruct staircases from below if at all possible, very likely trapping themselves if no alternate way up remains.

[MagmaMcFry]

In my forts, dwarves actually prefer to remove stairs from a different z-level. Don't know about yours, though.

[Untelligent]

Are you trying to have a dwarf go down into an area that you can collapse at will?

That's easy. Just make the staircase down the only support, then collapse something onto the staircase.