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UmarMakhzumi last won the day on March 3

UmarMakhzumi had the most liked content!

About UmarMakhzumi

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    NUST, U of A
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    Structural Engineering, Ancient Engineering, Seismic, Retrofitting, Finite Element Analysis, Civil Engineering, Formula 1, Basketball, VB

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  1. Beam spring Tunnel in ABAQUS! (SAP2000)

    Sorry, its against our forum policy to share software download links. Thanks.

    There is something else that you need to consider. For the case when you have a top slab, that means that you will have two walls - one on each side with ta top slab. So technically speaking the lateral pressure from each side should cancel each other out. But your wall should still be designed to transfer the forces as they are part of load path. Long story short, yes you can use the formula specified but if your length is long, check for counter-forts so that you don't get two way bending of the vertical wall. Thanks.
  3. You will get more deflection. You need to stick to some objective code and guideline. You can't pick and choose. Thanks.
  4. Need CISC Manual

    Rasheed, You can get dimensions of steel section and pre-calculated properties for Canadian Sections at: https://www.cisc-icca.ca/product/steel-section-dimensions/ Thanks.

    (ka*unit weight*height) is the base pressure of the triangular force. You need to use ka*1/2*Gamma*h*h as the force and then multiply the force by lever arm (I think its 1/3rd (likely) or 2/3rd height - see literature) to get the moment at the base. If you have got a long wall, you should also do a check for counterforts to see if they are required or not. I am not sure why you called this a culvert, if its a long retaining wall. If you have a slab on top level, then the design would be different. Can you share a picture or a drawing. Thanks.
  6. Auditorium Design

    If it is designed properly, yes. What that means is that your slab needs to meet strength and serviceability criteria. You can model a waffle slab in SAFE and check if its reinforcement requirement and deflection are under code permissible. Thanks.
  7. Beam spring Tunnel in ABAQUS! (SAP2000)

    Ingrid, I might not be the best person for this. I have requested a tunnel specialist to join this forum. Lets see if he comes. Thanks.
  8. Beam spring Tunnel in ABAQUS! (SAP2000)

    I will ask out to see if we can get someone experienced in Tunnels. The problem is not a lot of people are willing to dedicate time to this. But, will give it a shot. Thanks.
  9. Beam spring Tunnel in ABAQUS! (SAP2000)

    Hi Ingrid, Please check out the following topics as the starting point: There is discussion about loading on the above mentioned topic. Also, please get in touch with @Hira Malik as I believe she is actively designing tunnels and would be better able to guide you in this regard. Thanks.

    Hira, Goto this post and download the attachment that shows how to calculation horizontal and vertical moment in the wall. Please see this: These requests can't be entertained as it violates forum posting policy. Please see forum posting rules here. Please see answer to 1. The coefficients provided in the document are very easy to use. Thanks.
  11. Auditorium Design

    Hamza, It depends on some factors like cost, unsupported span and asthetics. Like if the ceiling is exposed, then Waffle is the go to slab type as it looks beautiful and can span large distance. If ceiling would be covered then you can go with literally anything. So do some preliminary designs, estimate the associated cost, talk to the architect and then propose an economical solution considering all the factors to the Client. Thanks.
  12. beam cloumn capacity ratio

    Please see the following: Thanks.
  13. Retaining Wall Design of Basement of 1 Kanal House

    For residential construction, basement walls act as propped cantilevers because of ground floor slab. You can model your wall as a propped cantilever and design for those forces. Also, check these topics out: The last post on the above linked thread has a solved example too. and this: Thanks.

    The only reference I know in this regard is ACI Detailing Manual. However, as a matter of doing structural design, you can bent bars up if you can show by analysis that the reinforcement configuration using bent bars would satisfy moment demand in the beam. Thanks.

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