Rule 506. Sections R 106.1.4 and R802.10.1 of the code
are amended and Section R106.1.4 and figure 802.10.1 are added to the code to
read as follows: R106.1.4. Truss design data. As an alternative to the
submission of truss design drawings, figure R802.10.1, the truss design data
sheet, may be provided to the building official as part of the construction
documents at the time of application. Truss design drawings shall be submitted
to the building official prior to truss installation as required by Section
R802.10.1. R802.10.1 Truss design drawings. Truss design drawings, prepared in
conformance with Section R802.10.1, shall be provided to the building official
and approved prior to installation. The truss design data sheet, figure
R802.10.1, may be provided to the building official at the time of permit
application, as an alternative to design drawings as permitted in Section
R106.1.4. Truss design drawings shall include, at a minimum, the information
specified below. Truss design drawings shall be provided with the shipment of
trusses delivered to the jobsite.
(1)
Slope or depth, span, and spacing.
(2) Location of all joints.
(3) Required bearing widths .
(4) Design loads as applicable.
(a) Top chord live load (including snow
loads).
(b) Top chord dead load.
(c) Bottom chord live
load.
(d) Bottom chord dead
load.
(e) Concentrated loads and
their points of application.
(f)
Controlling wind and earthquake loads.
(5) Adjustments to lumber and joint connector
design values for conditions of use.
(6) Each reaction force and
direction.
(7) Joint connector type
and description (e.g., size, thickness, or gauge) and the dimensioned location
of each joint connector except where symmetrically located relative to the
joint interface.
(8) Lumber size,
species, and grade for each member.
(9) Connection requirements for the
following:
(a) Truss to truss girder
.
(b) Truss ply to ply.
(c) Field splices.
(10) Calculated deflection ratio and/or
maximum description for live and total load.
(11) Maximum axial compression forces in the
truss members to enable the building designer to design the size, connections,
and anchorage of the permanent continuous lateral bracing. Forces shall be
shown on the truss design drawing or on supplemental documents.
(12) Required permanent truss member bracing
location.
