Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

Precast Concrete Frame with HCS

Status
Not open for further replies.

CovertShear

Structural
Nov 8, 2022
36
0
0
SK
Hello

I am designing a structure for a 2-storey shopping center.
The dimensions are:

- Hollowcore slab span 8,0m (26ft).
- Inverted Tee beam span 12,0m (39ft).
- Live load 5,0 kN/m2 (100 psf).
Spiroll_moduls_x_idrsha.jpg


I dont have much experience with a precast concrete, so I went out and looked around existing shopping centers, to see what system they used.

In some cases, I have noticed a system of short span Hollowcores (around 3m/10ft) supported by secondary rectangle beams, carried by a primary inverted tee beam (I am standing under the tee beam).

IMG_20231005_074607_ruc729.jpg


This system made me worried that I am missing something, because it seems overdesigned and the live load use above it should not call for such a heavy-duty system (IKEA).

What do you guys think, are my spans OK?

PS: For global stability, I have added few shear walls in the first storey, so lateraly it should be sound.
 
Status
Not open for further replies.
Back
Top