Hanger rod to support beam connection detail

[skewl]

Hi eng-tips,

Just wondering how you would detailed the connection between the hanger rod and support beam.

Some considerations:
- Ease of removal for future replacement.
- Ease of inspection. Whatever the support assembly must be visually inspectable from a distance.
- Durable. The support beam is located below a bridge deck (some limited salt exposure + water splash from river below). Timber floor beam also traps moisture and has severely corroded the existing HSS beams.
- Minimize the depth of the entire assembly as much as possible. Client is concerned about catching debris from the river.

We have floated several other ideas in the past but I always come back to the HSS because it seems to be the simplest detail.

 

[blihpandgeorge]

i have seen this done before with channels toes down and toes normal, allows water to escape. not sure the elastomeric is required?

 

[dik]

I would think the elastomeric pad could trap moisture and lead to brown rot (aka dry-rot) deterioration. Instead of the elastomeric pad, I would likely have used an 8" PL/BAR to provide more bearing, and with channel sections (a pair, like an I beam or single as described above).

Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?

-Dik