Roof Framing The roof of the shed is framed with trusses spaced at 4’-0”. The trusses are constructed of flitch-plate top chords made of two 1 3/4” by 7 1/4” LVLs with a center 1/4” thick steel plate. The vertical and diagonal webs are ½” diameter rods that meet in the center of the truss at a 5 1/2” diameter plate ring constructed of 1/4” steel. The roof is sheathed with 1/2” panel sheathing with a 40/20 span rating. The decking visible on the underside of the breezeway does not serve a structural function, rather, it is aesthetic in nature. The roof framing is in good to fair condition. The framing is adequate for the snow load associated with the site, however, panel sheathing is not adequate to span between the roof trusses. Wall Framing The walls of the shed are framed with flitch plate studs aligned with each truss at 4’-0” on center. The flitch plate studs are composed of two 1 3/4” by 7 1/4” LVL members with a steel plate in the center. The sizes could not be confirmed since the interiors of the buildings were not accessible during site observations. All observations were made via visual observation through a vertical strip of metal mesh in the walls of the breezeway. At the interior spaces, the roof trusses connect to the wall studs with a custom steel saddle and steel plate attached to the wall stud flitch plate. The tops of the wall studs are braced laterally with a let in 7 1/4” LVL beam on the exterior face of the wall.
At the breezeway, the trusses bear on a header composed of two 1 3/4” x 7 1/4” LVLs and a center steel WT member with the flange on the top side of the header.
The gable walls are constructed of dimensional lumber framing.
The wall framing is in good structural condition showing no signs of failure or widespread displacement.
Figure 1-29. Southwest corner of Volunteer Shed at Columbia Cemetery, 2022 (source: JVA)
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