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Good day! Just wondering if any of you encountered or have designed an irregular shaped water tank/reservoir. I've been going at it for weeks and I have been really trying hard to figure out if using the Staad program would eventually help me solve for the bending moments, Mx and My as well as...

Good day! Just wondering if any of you encountered or have designed an irregular shaped water tank/reservoir. I've been going at it for weeks and I have been really trying hard to figure out if using the Staad program would eventually help me solve for the bending moments, Mx and My as well as...

I've just finished looking into how to deal with the walls of a rectangular tank, now leads me to the question of is there any simpler methods on dealing with the bottom slab of the tank? I've tried reading the PCA but it only includes the top slab and looking into the size of my tank, (50x100)...

Have you gotten a hang with the code as per the fs,max and the overall use of Sd? Because IMO its much easier using the one from 350-01. Having an entire formula changed based on the flexure and how the wording is really taken into is quite confusing and convoluting. And sorry for being off...

@JAE, Sir I have a question with one of your previous threads with regards to the Sanitary Durability Factor. I've been going through ACI 350-06 10.6.4 with regards to the value of fs, I don't know what is more 'permissible' and what to consider. Would it be more conservative to use the...

Are you implying that when dealing with a two-cell tank your internal wall would be more critical than that of the external? I mean pressure at the internal wall due to the impulsive and convective force is greater than that of the external wall? Meaning to say that what I asked from my previous...

When dealing with a tank wherein you have to compute for your base shear, you have to consider the impulsive and convective force acting within the tank filled with fluid as well as the force acting on the wall. Considering that it is a two-cell tank wherein you have to compute the forces of the...

It was indicated in chapter 13 of the ACI 350.03-06. Not on chapter 9. That is why I am confused as to what I should use.

Thanks and no, you got what I mean to say. I was not clearly sure what to do about the matter. I recently came across ACI 350.03-06 13.6.1.5 "All liquid loads, whether considered live or dead, shall be multiplied by the appropriate load factor of 1.7, per Chapter 9. If fluid pressure do not act...

@TehMightyEngineer Hi, just read through your reply. It is a multi-cell tank mostly for storing liquid. We are to have an investigation with regards to the structure and most of the process that I am seeing in the internet and from the PCA guidelines use the values of 1.3 1.65 and 1.3. As to...

Hi, hope you would be able to read this.. Is it still advisable to use the Sanitary Coefficient of 1.3 1.65 1.3 or use the new Sd formula of phi*fy / gamma*fs Thanks.

@TehMightyEngineer So when you design tanks and have to consider these load combinations, taking into account that I am using Staad, should I still consider the conditions met on the PCA Rectangular Tank? i.e. Condition 1: Soil is absent, fluid is present. Condition 2: Soil is present, fluid is...

Does this sentence mean that whenever the load H resists the primary variable load effect, its load factor "H" shall be changed to 0.9 where the value of H is permanent? And throughout all other equations within this load combination, will the value of H be set to 0? According to the exception...