Lock Washer at Open Web Steel Joist Bolted-Connection
Lock Washer at Open Web Steel Joist Bolted-Connection
(OP)
If the final connection for an Open Web Steel Joist (OWSJ), to support, were to be a bolted-connection, would a lock-washer provide any credible structural integrity?
Thank you!
Thank you!






RE: Lock Washer at Open Web Steel Joist Bolted-Connection
https://www.youtube.com/watch?v=IKwWu2w1gGk
Nord-Locks and Loktite are the only ways I trust to work the majority of times with minimal QA/QC. Cotter-pins and wiring the bolts are good but rely on installers to install it properly and a lack of QA/QC can hurt them.
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: Lock Washer at Open Web Steel Joist Bolted-Connection
Dave
Thaidavid
RE: Lock Washer at Open Web Steel Joist Bolted-Connection
RE: Lock Washer at Open Web Steel Joist Bolted-Connection
NASA's Fastner Design publication, 1228, states lockwashers are useless. The Navy's Ship Manual (S9086-CJ-STM-010/CH-075R2)Chapter 75 prefers locking nuts; although it states that lockwashers can be used on diesel equipment if there wasn't any previous bolt loosening.
RE: Lock Washer at Open Web Steel Joist Bolted-Connection
RE: Lock Washer at Open Web Steel Joist Bolted-Connection
Dik