Special moment truss frame
AssigneeJD2, Inc.
InventorGilbert A. Peterson
Life of this patent
Estimating the term…
Abstract
A truss for use in building construction having a center portion adapted to “go plastic” during a seismic event, and two outer portions at opposite ends, which remain inelastic during such event. The center portion features spaced opposed upper and lower C-channels connected to interposed spaced gussets, which gussets are connected by both vertical angle members and crossed bars. The crossed bars are also connected at their midpoints to a connection plate.
Claims16
A truss center portion comprising:
- a. a series of X-shaped bars, each X-shaped bar having a front member and each having a rear member, said series being planarly aligned;
- b. corner gussets;
- c. and two pairs of opposed top and bottom C-channels, wherein the series of X-shaped bars are connected to the corner gussets, which gussets are disposed between the opposed spaced top and bottom C-channel members, and each member of the X-shaped bar is a continuous member.
A new truss adapted to resist both vertical and lateral sheer during seismic events, which truss comprises three portions, a center portion and two outer portions;
- a. said center portion being adapted to achieve a plastic state during a seismic event, wherein the center portion comprises a series of X-shaped bars, each member of each X-shaped bar being a continuous member having two ends, each end of each member of the X-shaped bars being coupled to a corner gusset;
- and
- b. two pairs of opposed top and bottom C-channels, wherein the gussets attached to each end of each X-shaped bar is disposed between the opposed spaced top and bottom C-channels.
In combination a pair of spaced wide columns having a truss disposed between the two columns, which truss comprises two outer portions with a center portion there between, wherein said center portion comprises a series of X-shaped bars having two members, each X-shaped bar member being a continuous member disposed one offset to the other;
- corner gussets coupled to each end of each X-shaped bar member;
- and
- two pairs of opposed top and bottom C-channels wherein the corner gussets attached to each end of the X-shaped bars are disposed in said opposed C-channels.
Dependencies are inferred from the claim text.