1880 framing 5

[ketco]

Hello, looking for drawing details on 1800's framing.
Have 4 story building in need of repairs.
Large timber frame roof trusses support floors below (attic, 3rd, 2nd floors).
Tension rods extend from attic framing down to beams supporting the floor joists.
Before we perform selective demolition to inspect, would like to review any similar framing details.
Thank you.

 

[bridgebuster]

From 1898 but it might offer some insight.

 

[dik]

Lumber sizes may be full size or larger, and careful for conditions of brown rot (aka dryrot).

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[SlideRuleEra]

Tension rods extend from attic framing down to beams supporting the floor joists.

Assume the rods are wrought iron, not steel. See this link for guidance on yield strength of historic wrought iron members.

 

[dik]

Great article SRE... the parent of your link has more info

https://www.buildingconservation.com/articles/articles.htm

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik