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# Revision history [back]

### How to model a building with a core (stairway, elevator shaft,...) surrounded with a corridor (a space inside a space) in OS

Hello,

my model is a multistorey building, which has offices spread next to the envelope of the bulding and in the core (actually 2 cores) of the building it has a corridor arround other spaces (restroom, elevator shaft,...). To better understand the situation see the picture bellow.

Top wiew.JPG

So when i model the building core, i have to make a space inside a space. And here comes the problem, because the floor and the roof of the bigger space are extended across the whole surface of the bigger space, I get two floors and two roofs at the place of the smaller space. And in my case I have vertical shafts from the bottom to the top, which are divided by the roof and the floor of the biger space (see image bellow).

Section-Core.JPG

When i dellete the surfaces (which devide my shafts), they just come back the next time i open the model. Also i have problems with the boundary conditions. ( See imagees bellow).

Bundary coditions.JPG

Boundary conditions 2.JPG

Is it possible to make a space with a hollow core without the roof and the floor just overriding the hollow core?

David

p.s. Sorry for the long text, but i want to make my problem as clear as possible.

### How to model a building with a core (stairway, elevator shaft,...) surrounded with a corridor (a space inside a space) in OS

Hello,

my model is a multistorey building, which has offices spread next to the envelope of the bulding and in the core (actually 2 cores) of the building it has a corridor arround other spaces (restroom, elevator shaft,...). To better understand the situation see the picture bellow.

Top wiew.JPG

So when i model the building core, i have to make a space inside a space. And here comes the problem, because the floor and the roof of the bigger space are extended across the whole surface of the bigger space, I get two floors and two roofs at the place of the smaller space. And in my case I have vertical shafts from the bottom to the top, which are divided by the roof and the floor of the biger space (see image bellow).

Section-Core.JPG

When i dellete the surfaces (which devide my shafts), they just come back the next time i open the model. Also i have problems with the boundary conditions. ( See imagees bellow).

Bundary coditions.JPG

Boundary conditions 2.JPG

Is it possible to make a space with a hollow core without the roof and the floor just overriding the hollow core?core? And if, can i put a smaller space in the hollow core of the bigger space?

David

p.s. Sorry for the long text, but i want to make my problem as clear as possible.

### How to model a building with a core (stairway, elevator shaft,...) surrounded with a corridor (a space inside a space) in OS

Hello,

my model is a multistorey building, which has offices spread next to the envelope of the bulding and in the core (actually 2 cores) of the building it has a corridor arround other spaces (restroom, elevator shaft,...). To better understand the situation see the picture bellow.

Top wiew.JPG

So when i model the building core, i have to make a space inside a space. And here comes the problem, because the floor and the roof of the bigger space are extended across the whole surface of the bigger space, I get two floors and two roofs at the place of the smaller space. And in my case I have vertical shafts from the bottom to the top, which are divided by the roof and the floor of the biger space (see image bellow).

Section-Core.JPG

When i dellete the surfaces (which devide my shafts), they just come back the next time i open the model. Also i have problems with the boundary conditions. ( See imagees bellow).

Bundary coditions.JPG

Boundary conditions 2.JPG

Is it possible to make a space with a hollow core without the roof and the floor just overriding the hollow core? And if, can i put a smaller space in the hollow core of the bigger space?

David

p.s. Sorry for the long text, but i want to make my problem as clear as possible.