Hi all,
I am on my third TI-85 and the display is failing :(. I looked at other TI models including the TI-83, TI-84 Plus C SE and TI-89 Titanium. I was able to emulate those models on my phone to see if I'd like them. I still prefer the TI-85, and really want something that does conversions...
Hi,
I am a licensed professional engineer (structural) that works for a Design Build firm. Our company managers have a habit of calling new project managers "Project Engineers". I have a problem with this, because the people they are titling as "Project Engineers" are new out of school with...
Hi all,
I received an email today from a jobsite asking what the tolerances are for a joist bottom chord to be bowed 1" to 2" out of plane compared to the top chord. The bridging has already been installed.
Has anyone else ever run into this? I would assume a joist is not designed to...
Hi,
When calling out an intermittent weld, say 4"@12", does that mean there is 12" of space between 4" welds or are the welds @ 12" o.c.?
Blogett's book notes that the 12" is the "distance between centers" which I would think means the 4" weld is 12" o.c.
I have a set of drawings that calls...
Hi,
Does anyone have experience with this AISC crane beam design spreadsheet? It will not let me select a W shape plus Channel. Any idea why? Thank you,
-K
Hi,
If you have a building in Seismic Design Category D, Special Reinforced Masonry Shear walls are required. Per ACI 530, "1.13.2.2.5 c)Shear reinforcement shall be anchored around vertical reinforcing with a standard hook."
This makes me think that horizontal reinforcing needs to be via...
Hi,
In the north we design all of our exterior doors with stoops that have frostwalls and footings that extend 4'-0" below grade. We are preparing a design build proposal for a building in Oklahoma. How are stoops typically designed/built there? I am told that the frost depth is about 22" in...
Hi,
We are designing a big box store with outdoor storage. The prototype drawings show the joists spanning perpendicular to the roof slope so that the roof deck ribs can be used for drainage to a gutter. The project manager wants to increase the slope of the roof, I'm suggesting 1/2" per ft...
Hi,
Has anyone taken the ASCE course "Design and Strengthening of Shallow Foundations for Conventional and Pre-Engineered Buildings"
What were your thoughts on the course? Was it worth the traveling and expense?
Thanks
-K
Hi all,
Here we go again with the sloped member discussion with a new twist. I read the threads related to this topic (see referenced threads below)
Background Information:
I am involved in designing some buildings for the federal government. Unfortunately they like roofs with 3/12 slope...
Hi all,
We are modifying a building that was constructed around 1972. Fortunately we have existing drawings. Unfortunately, following joists are specified:
-28DH9 with 3 1/2" bearing shoe, 50' span
-18DH8 with 3 1/2" bearing shoe, ~30' span
Also specified are:
-18H6 with 3 1/2" bearing...
Hi,
I have been asked to design a slab on grade to dampen the vibrations of a 150 hp dynamic load. The senior strucutral engineer here says that he usually makes sure the slab below and about 2'-0" around the piece of equipment weighs twice as much as the piece of equipment that is vibrating...
Hello,
I have "Design of Wood Structures, ASD" 4th edition published in 1999. The book outlines perforated shear wall design for wood framed shear walls. Basically, the shear wall capacity is calculated by adjusting shear capacity of the entire wall by a factor that is calculated by comparing...
