I'm trying to understand how to reconcile the following two provisions regarding torsional irregularity in chapter 12 of ASCE 7-05:
First, Section 12.3.3.4 requires the 25% amplification of design collector forces determined from Sec 12.8.1, which is the Equiv Lateral Force Method, when you...
It is common practice to analyze basement walls using tank-tables, which usually indicate high negative moments around corners and at counterforts. My question is how the bars around corners can be used for tension reinforcement in walls that are too thin to allow the minimum hooked-bar...
I have been pondering allowable deflection limits for our residential design standards for high-end residential *FLOORS BEAMS*(wood framed with LVL, glu-lam, and steel beams). I am trying to develop a list of criteria for younger engineers, and I would appreciate some input from some of y'all...
Section 1705.2(2) of the IBC states that the statement of special inspections shall identify "the TYPE and extent of each special inspection". That section also states that, for each TYPE of special inspection, the engineer must indentify its frequency (continuous or periodic).
I always thought...
I am designing an 8" CMU wall, 11'-0 high, for wind loading. It's braced at the bottom by the foundation and at the top by the roof diaphragm.
Is it standard practice to design the wall as a reinforced masonry wall, which considers the tension-side masonry as being cracked, or does the whole...
I have a large pre-fab metal building on a post-tensioned slab, and I am designing masonry walls inside to divide up the space and to supprt a wood-framed 2nd floor. (In other words, there are a combination of CMU bearing walls and CMU non-strucutral partitions on this large PT slab.) All of the...
Scoreboards for school sports fields often have 2 ft diameter x 6 ft deep concrete "drilled piers" as foundation elements. The holes are drilled with a Bobcat-driven auger. I have questions about how to determine the capacity of these small, shallow piers in the following two applications...
