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Refering to a Vulcraft Steel Roof and Floor Deck catalog/design guide, the section properties list values for "Sp" and "Sn". Are these values equivalent to the Section Modulus about the X-X axis? Please advise ...

When the floor finish is a cementitious tile, (i.e. ceramic, quarry, etc) a cleavage membrane, composed of a 0.7(+/-) mil poly, is recommended to separate the concrete topping from bondage to the structural precast plank. Thus, it is understood, that the concrete topping is no longer a...

ACI 318 Chapter 12 refers to Development and Splices of Reinforcement

What is the difference between development and embedment of rebar? Thank you!

Why is there no apparent code requirement for minimum reinforcemnt in, specifically, continuous wall footings? Is there a requirement that I do not see? Please advise - Thank you!

Would anyone please provide me with the Fb, Fv and E values for ASTM B-221/429 Aluminum 6061-T6 or similar? I have Strength of Material books, but, I cannot find those design values. Thank you ...

I don't see this as a structural issue, however, I was asked to inquire - Is there a code or personal standard used for distances and spacings of expansion or control joints in foundation walls, retaining / basement walls, where the inside face of the concrete wall is exposed to an occupied...

UcfSE, Yes. Side-loaded - bearing only on one ply which is to be fastened to the others.

How do you transform one material to the other?

UcfSE, I'm not familiar with the shear flow equation ...

Can you direct me to a Nailing Pattern for SIDE-LOADED multi-ply wood (dimension lumber) beams? Thank you...

When designing a wood/steel section(beam) with flitch plate, is it reasonable to determine a "transformed" Allowable Bending Stress, Fb, by reason of propotionality? i.e. A 4-ply 2x12 SYP #1 (Fb=1,062 psi)(wet-service adjusted) w/1-ply A36 0.25x11 (Fb=21,600 psi) A(SYP)=67.5 si A(A36)=2.75 si...

To (attempt to) prevent drywall cracking, use slip track / deflection track / double track ...

Many things to consider. I have a design and engineering handbook from Spancrete, which shows "minimum" (not necessarily acceptable) bearing requirements. This manual shows 3.5" on masonry, 3" on embedded steel angle, 2.5" on steel beam, with 1" gap between abutted ends, you would need a 6"...

Contact a reputable general contractor that you are familiar with. Find out where they purchase lumber from. If it is a retail lumber outlet, find out what wholesaler they purchase from and call that wholesaler. Another thing to consider is how straight will a 22' length piece of lumber be...

JStephen, Where did you get your info from? I can't find it in AISC 9th Ed.

I just got off the phone with Birmingham Fastener, Inc. which is one of the major structural headed bolt and threaded rod manufacturers of only a few in the nation that most of the nations fabricators will puchase anchor bolts from. I know this because I used to be an estimator at a local steel...

AISC 9th, says A307 has a higher Tensile strength, as well as higher allowable tensile and shear loads as compared to A36. I can find neither a Yield strength, nor an Ultimate value for A307. Why? Other than the slight difference in values, what advantage does one have over the other? Thank...

SlideRuleEra, What is "incising"? Thank you for your reply. Upon furhter research, consulting with an AC-B wood treater, I have been told that Table 4B Factors are the only requirement for the scenario of which I have inquried. ... Off the record - I'm going to miss the "reference from...

Does ACQ-treatment of 2x10 & 2x12 lumber, require design value adjustment? More specifically, after applying the NDS Table 4B Adjustment Factors, Cm for wet service conditions, to SYP #2 & #1 lumber, must design values be further adjusted for ACQ-Treatment? Thank you ...