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I am asking this question for PT999 as well as myself. PT999 has posed a similar question at thread507-167093. Can an existing 15" wide flange erected in 1907 be field welded to a new A992-Gr 50 wide flange? What material would the 1907 beam be composed of? Thank you ...

How large does this coupon need to be? I intend on welding the bottom flange of a 15" x 60 plf section erected in 1907, to the top flange of a new section to create a built-up section for an existing facility.

When was the birth of nominal wood sizes? What is the origin of nominal wood sizes? Just curious ...

SlideRuleEra, or other, I just found more from an apparent specbook accompanying the blueprints: Floor joists: 3x12 sound #1 pine joists and 2x12 sound #1 hemlock free from shakes. What might the term "sound" refer to? Actual? Thank you ...

Actual 3x12 floor joists at 16" oc for the second floor of a former firehouse wanting to turn restaurant and banquet hall. Where can I find design values and a reasonable assumption of species for this structure built in Door County, Wisconsin in the year 1907? Keeping in mind, the lumber is...

Actual 3x12 floor joists at 16" oc for the second floor of a former firehouse wanting to turn restaurant and banquet hall. Where can I find design values and a reasonable assumption of species for this structure built in Door County, Wisconsin in the year 1907? Keeping in mind, the lumber is...

DaveAtkins, Where do you find this exception?

I recall approximately ten years ago, when a PEMB company (specifically ABC) had changed their rigid frame base plate anchoring from two anchor bolts to four anchor bolts. Apparently for some time, the two were acceptable. I do not recall whether the change was a code requirement or revised...

UcfSE - Can you give me an example of a horzontal stiffener where the brick angle connects to the web? I suppose you could have a horizontal stud member contained within the box at the elevation of the connection. What other idea might you have? As far as a vertical stiffener, I'm imagining...

What about display shelfs in churches or other areas of aethetics, such that, due to the design parameters, such as size and location, which would render the space as uninhabitable, it may be obvious that it would never be used for storage or mechanical. Consider classrooms being 40 psf. Would...

Anybody?

IBC does not list minimum live loads for mechanical, equipment or display mezzanines. IBC 1606.2 states to include fixed service equipment dead loads. After equipment loads have been considered, what do you use for overall live loads, for the above specified commercial occupancies? Thank you ...

I forgot to add. My firm does not do residential. Is there anything in any code, regulation, ordinance, etc, that would allow 1/2", non-corrosive finished, sill anchors, for fastening preservative treated wood to concrete foundations, for commercial structures? Thank you...

Thank you SlideRuleEra for your reply. The reason I ask, is because for several years, the contractor I work most closely with, has been wanting my firm to conform to the other architect and engineering firms that they work with. Those other firms have been specifying 1/2" anchors (w/o...

Is there was a requirement, in IBC, stating that when fastening preservative treated wood sills to concrete foundation, the anchors must be of corrosion-resistant material such as galvanizing or stainless? I thought there was and I cannot find it. Thank you...

JStephen, As you may have noticed, I'm green in determining the difference between a pinned and fixed connection - I may even need to post a thread asking the real difference between the two when referring to a continuous multi-span beam. I do understand that inserting the bar into the...

RE: IBC 2306.4.5 I know I've used this table in the past, and I thought that the table represented gypsum used on only one side of wall. Therefore sheathing both sides allows me to double the values. But, I'm not reading this anywhere. Also, there does not seem to be any reduction factors...

For simplicity, I start all of my basic calculations for mild carbon steel at Fb=0.6Fy. Even if I apply 0.75Fy per AISC 9th (F2-1), the conservative 300 lb point supported by a pinned end connection, still exceeds that Fb that a 3/4" dia A36 will provide. Through the use of the intent of this...

Depending on the actual WT designation, these seem to be large joists? Are they in an industrial occupancy? Could it be that they were designed by an independant engineer as opposed to an SJI manufacturer? If there is anything fortunate about these joists, the shapes are at least something...

In light of the "Complexity of Engineering" thread, I prefer to keep things a s simple as possible. But, this is why I ask: In the past, I have figured ladder rungs to be required to support a 200 lb concentrated load at mid-span for a conservative pinned support. Similar to what JStephen...