AISC 360-22, 341-22, & 342-22 2

[OH_PA_AISC]

Greetings:

I have had the pleasure of being AISC members over the years and repeating the benefits. Have downloaded and added numerous of the Design Guides and selected structural related articles to my digital library for reference purposes. Additionally, as a member, I considered it beneficial to the AISC to review the drafts copies of the following specification and provisions when available:

1.) AISC 360: Specification for Structural Steel Buildings
2.) AISC 341: Seismic Provisions for Structural Steel Buildings
3.) AISC 342: Seismic Provisions for Evaluation and Retrofit of Existing Buildings.

The review period has been established from January 7, 2022 till February 21, 2002 to review these drafts. If you desire a copy that you can downloaded to review of these advance draft of the documents mentioned above, then just go to AISC website and enter “Public Review Draft”. You will discover the documents under “Standards Under Public Review”.

Happy reading.

 

[strucbells]

Care to share any highlights/summary of proposed changes in these standards?

I'm not familiar with AISC 342. How does that fit in to the ASCE 41 framework?

 

[chris3eb]

Thanks for pointing this out, OH

@strucbells AISC 342 is a new document that forms the basis for ASCE 41 Chapter 9. For a cycle or two, ACI has been producing a similar document (ACI 369) that forms the basis of ASCE 41 Chapter 10. I think that AISC 342 will be incorporated directly into ASCE 41 rather than being a separate document that is referred to (that's how it works with Ch 10 and ACI 369). The reason for this change would be to give AISC more control over the steel provisions.

 

[OH_PA_AISC]

All;
Frigid day in Northeast Ohio, projected -15 wind chill, with all regional schools closed for the day. Great day to come in early and put on hot pot of coffee and do some engineering along with experiencing professional growth. Plan on reviewing AISC 360: chapter E (Compression), chapter F (Flexure), chapter J (Connections) and any and all chapters and appendix related to stability. For AISC 341 – B (General Design), D(connection), E (Moment-Frame), and especially F (braced frame/shear wall).

Unfortunately, parts of documents that have been altered, have not been marked.

Below are some of the changes to 360 - Chapter F (flexure) that I could find:
1.) F7. Square and rectangular HSS and Box Sections.
Replaced Equ. (F7-2) - Flange Local Buckling
Replaced Equ. (F7-3) - Web Local Buckling
Limit the scope of F7 with the following modified User Note;
* Box sections with slender webs and slender flanges are not addressed in this section.
2.) F11 Rectangular bars and rounds.
Generated equations (F11-1 & F11-2) for rectangular bars and rounds individually.
3.) F13 Proportions of Beams and Girders
Omitted F13.5 – Unbraced Length for Moment Redistribution.

Minor changes, AISC 360 is being a very mature document from its 13th edition in 2005.

 

[OH_PA_AISC]

chis3eb:

If you weren't involved, then this should be of interest to you.

Just finished the AISC webinar: AISC Research: Seismic Evaluation and Retrofit of Concentrically Braced Frames [H3]

This webinar focus upon AISC's supported research that was incorporated into AISC 342.

Presenters - Charles Roeder, PhD and Dawn Lehmen, PhD

Just go to AISC: Education Archive and enter in 1.5 PDH Hors and Retrofit into keyword search fields.