Want Guidance/Help for Shell Modelling

Hi,

I am trying to do SHELL modeling of a problem to get Bending moment, Shear force, Axial Force etc.

Problem can be simply explained as below:

Model is just a like a room (block) with 4 surrounding wall, a roof and ground (Base).

Height (H) of (any) pair of opposite walls are not same, i.e say H _front = 5m and H _rear = 3m.

(Base) ground is straight whereas roof is inclined from front wall towards rear wall.

Problem can be sketched as below:

/ @

Roof / l

/ l

/ l

/ l

/ l

l l

W_rear (3m)l l W _front (5m)

l l

@ l _Base_l

@ Problem Area (Junctions)

Now I have prepared surface model of all walls considering mid-surface. My concern is of modeling front wall and rear wall.

I have model mid surface of both front and rear walls along with roof. But when I describe thickness during analysis (in ANSYS), I face a probelm at wall junctions with ROOF.

At 1 junction, Front wall (partly) penetrates inside roof and there is (partly) gap between them. Whereas at other junction there is a gap between roof and rear wall and also roof penetrates rear wall partly.

I am new to SHELL modeling. Kindly note that Roof is actually an Arch shaped (and not plain Slab type)

Any guidance/help/tips to solve this problem.

Thankyou

Amit