Rotating Spectral Axes
(Before anything else, I would like to acknowledge our design manager Dale who unselfishly shared this to everyone and some of my colleagues who accommodated my queries so that I…
Setting Correct Expectations On Lfrs Involving Transfers
Gravity dictates that what’s up must go down. The same can be said of lateral loads be it seismic or wind: summation of applied lateral load equals the lateral base…
Did You Know That… Dynamic Vs Static Base Shear Balancing Is Different In Asce From Ubc97?
If you’ve read my previous post regarding balancing seismic and dynamic base shear that was seismic base shear balancing considering UBC97 where static equals dynamic or dynamic should not be less than…
Did You Know That… You Can Go Lower Than The Minimum Required Flexural Reinforcement?
This applies if the reinforcement provided is not driven by crackwidth limits and thermal requirements. The minimum steel ratios of 1.4/fy and √fc’/(4*fy) of 10.5.1 of ACI318M-11 doesn’t seem much…
Did You Know That… Strength Reduction Factor Adjusts Depending On The Strain Of The Extreme Tensile Steel?
How old am I? I’ll give you an idea: we had been the last batch way back university days that used an older version of ACI that doesn’t interpolate the…
Huge Stuff Re Architectural Mepf That We Need To Put Our Fingers On
Howdy everyone?! I’ve been digging for quite sometime now for something to share with you until I realized that I’ve been looking far beyond my nose. So here goes nothing……
Interpreting The Modal Mass Participating Ratios Table From Etabs
I have not been modelling extensively in ETABS this recently so this query from a former 後輩 (こうはい) had my technical engine humming once more. She sent me the table below of the…
Tips In Proportioning The Geometry And Reinforcement Of Conventional Slabs
Slab design may not be that ‘challenging’ to some compared to designing walls and columns and the parts of the lateral force resisting systems (LFRS). Granting that such is the…
Excessive Deflection Counter Measures Of Conventional Slabs In Safe
Excessive deflection in what will be discussed in this article is the deflection in excess of the threshold deflection as prescribed by governing codes or local authorities. As mentioned in…
The Concept Of Lateral Stability
Gravity-wise, so long as there is something below that props what is above, gravity loads will follow a route where the assumed forces will flow until it hits the supports.…
