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  1. atef81

    What is the skin friction values of sand?

    Hi, I need to design pad footings in sand. The current design philosophy used in my workplace is to utilize skin friction as one of the methods to combat uplift in footings. The particular project I am working on has footings founded in sand, with a separate concrete slab pavement poured on top...
  2. atef81

    What is the maximum ground slope under stacked shipping containers to prevent tipping?

    Hi, what would be the maximum allowable ground slope (longitudinally and transversally) under stacked shipping containers? I am trying to design rigid pavement (concrete) under stacked full containers and trying to find out the maximum acceptable slope before containers tip over. I looked in...
  3. atef81

    How to apply Wind Load on Domes to AS 1170.2 ?

    I am designing a structure that has 3 domes. I need to apply wind load on the domes to Australian Standard AS1170.2 Can someone please guide me to what's the best approach? If AS1170.2 does not clearly cover this situation, what alternatives can I use? I modelled the structure in Space Gass...
  4. atef81

    How to calculate soil load on underground bridging slabs?

    I am required to design bridging slabs above a sewer line, as per the sketch below. The criteria is not to transfer loads to the sewer line, hence the need for a slab. the slab will be supported on 4 piers, so it is a suspended slab. My question is: how much soil weight does this slab carry? is...
  5. atef81

    Causes of Grid Pattern Cracks in a concrete pathway?

    Hi, I found the cracks shown in these photos in a concrete pathway. The cracks seem like a "grid-pattern", and also they seem to be perpendicular to sawn joints. Just wondering what can cause this pattern and why the slab would crack perpendicular to the sawn joint although the joints are places...
  6. atef81

    AS/NZS 1170.2 Reduction factor for Permeability of Debris Safety Net

    Hi, I need to calculate wind load on a vertical net between 2 floors in a building. The purpose of the net is to stop debris from flying off the building and divert it to the lower floor. Th net has a 42% Solidity ratio. My question is: Does the equation in AS/NZS 1170.2 clause D1.4 applies...
  7. atef81

    How to desgin masonry walls with in plane bending moment to AS 3700-2018

    Hi All, I was tasked to design reinforced core filled masonry walls for loads I was given. The walls have axial compression loads and in plane bending moment. I can't find resources that explain how to design masonry walls against in plane bending moment to Australian Standards AS3700. Or at...
  8. atef81

    Slab Corbel Design Question

    Hi, I am tasked to design a ramp in a building. The ramp is supported by slabs at either end via corbels. The slabs are supported by walls at either sides. So the corbel is spanning between walls. I modeled the ramp using Inducta SLB Software, with line supports at the corbel locations to...

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