Unsupported length suggestion isnt solved and snap-through problem is raised :)
@SAIL3 i would really appreciate if u can share literature on snap through. and 4 out of 6 arches will be under lateral load due to their orientation in structure.
Guys thanks for your responses. i am attaching STAAD model diagram for more clarity.
i want to design the hollow section from STAAD considering it as beam by taking unsupported length = half curved length.
deflections and other analysis results i am taking from STAAD...
@dcarr82775 ...thanks
actually i already tried finding any sort of helping material in this regard but couldnt ..... is it possible that somebody can tell me the that appendix of aci 92 code ....
other wise LRFD method is the final option to return to for this specific case ...
Dear All
i have task on hand to review structural integrity of Foundations, constructed in 1980 using WSD method for concrete design.
Can any body share some Design guide or helping material, which i can use to design the concrete foundation based on ASD method.
Guys thanks to all
for showing interest .....but as "JStephen" , "fegenbush" said .....
this is really the case in hand ....API 650 does not give detailed foundation outlines but gives min value as per the Tank Design...so foundation must resist those min Uplift forces.
for the foundation...
Thnks JStephen
same conclusion i has come over too... the only solution to remove the condition of this irrational pressure requirement ..for this size of tank ...however if client does not do that i will surely share the awwwwww some design i will have to come up for th design of this tank...
Thanks for reply;
no this is riyadh area, very low geological activity.. but this uplift is coming due to internal design pressure of 0.175kg/cm2 ....
n for the same reason i have to provide large number of anchor bolts .....but is the foundation i cant figure out uptill now ...
due to very...
hi i fahed
i have to design the Foundation for 77.5m dia 17m high storage tank foundation,
The problem is
Tank self weight = 1900 MT
Internal Pressure = 0.175 kg/cm2
which translates into abt 15000 MT of uplift force as per API 650.
also API 650 Appendix F 7 requires 1.25 x Uplift against...
