Moment-resisting frames and kits for assembling the same
Various embodiments disclosed herein relate to moment-resisting frames, kits for assembling such moment-resisting frames, and methods of repairing such moment-resisting frames. In an embodiment, a moment-resisting frame includes a beam connected to a column using a moment-resisting connection. The moment-resisting connection may include at least one exterior doubler plate (“EDP”) that is connected to the column and two or more connectors that are connected to both the beam and the EDP. In some embodiments, the moment-resisting frame may require less welding than conventional beam-to-column connections. Additionally or alternatively, such a moment-resisting frame may eliminate the need for components typically used in conventional beam-to-column connections (e.g., continuity plates).
1. A moment-resisting frame, comprising:
a column defining a column longitudinal axis, the column including a first lateral member and a second lateral member spaced from and opposing the first lateral member, the first lateral member and the second lateral member extending along the column longitudinal axis;
a beam defining a beam longitudinal axis, the beam including a top beam flange and a bottom beam flange, the top beam flange and the bottom beam flange extending along the beam longitudinal axis; and
two or more connectors, each of the two or more connectors including a connector wall that is generally planar and generally parallel to the top beam flange and the bottom beam flange, the connector wall including:
a first portion that is coupled to the column and positioned adjacent to at least one of the first lateral member of the column or the second lateral member of the column; and
a second portion that is coupled to one of the top beam flange or the bottom beam flange.
2. The moment-resisting frame of claim 1 , wherein the column includes a fore member and an aft member spaced from and opposing the fore member, the fore member and the aft member extending between and coupled to the first lateral member and the second lateral member.
3. The moment-resisting frame of claim 1 , wherein the first and second lateral members define respective flanges, and wherein the column includes a web extending between the two flanges.
4. The moment-resisting frame of claim 1 , wherein the first portion of the connector wall is positioned adjacent to both of the first lateral member and the second lateral member.
5. The moment-resisting frame of claim 1 , wherein the beam exhibits a width that gradually decreases along the longitudinal axis from a first location to a second location spaced further from the column than the first location.
6. The moment-resisting frame of claim 1 , wherein the beam exhibits a substantially uniform width.
7. The moment-resisting frame of claim 1 , wherein at least one of the two or more connectors includes an angle having an additional connector wall extending generally perpendicularly from the connector wall.
8. The moment-resisting frame of claim 1 , wherein at least one of the two or more connectors includes a splice plate that is substantially planar.
9. The moment-resisting frame of claim 1 , wherein each of the two or more connectors defines at least one cutout that is configured to accommodate at least a portion of the column therein.
10. The moment-resisting frame of claim 1 , wherein the two or more connectors extend longitudinally in a direction that is generally parallel to the longitudinal axis of the beam.
11. The moment-resisting frame of claim 1 , further comprising at least one plate coupled to at least one of the top beam flange or the bottom beam flange.
12. The moment-resisting frame of claim 10 , wherein the second portion of the two or more connectors are coupled indirectly to the beam via the at least one plate.
13. The moment-resisting frame of claim 1 , further comprising two exterior doubler plates, each of the two exterior doubler plates including an interior doubler surface and an exterior doubler surface, the interior doubler surfaces of the two exterior doubler plates positioned adjacent to the first lateral member and the second lateral member, the two exterior doubler plates connected to the column, wherein the two exterior doubler plates do not enclose any portion of the beam;
wherein the two or more connectors are coupled to the column indirectly via the two exterior doubler plates.
14. The moment-resisting frame of claim 1 wherein one or more of at least one of the two exterior doubler plates or the two or more connectors includes at least one structural fuse positioned and configured to preferentially yield.
15. A kit for assembling a moment-resisting frame, the moment-resisting frame including:
a column including a first lateral member and a second lateral member spaced from and opposing the first lateral member, the first lateral member and the second lateral member extending along a column longitudinal axis of the column; and
a beam including a top beam flange and a bottom beam flange, the top beam flange and the bottom beam flange extending along a beam longitudinal axis of the beam; and
the kit comprising two or more connectors, each of the two or more connectors including a connector wall that is generally planar and generally parallel to the top beam flange and the bottom beam flange, the connector wall including:
a first portion that is coupled to the column and positioned adjacent to at least one of the first lateral member of the column or the second lateral member of the column; and
a second portion that is coupled to one of the top beam flange or the bottom beam flange.
16. The kit of claim 15 , further comprising two exterior doubler plates, each of the two exterior doubler plates including:
an interior doubler surface exhibiting a width that is sufficient to be positioned adjacent to the first lateral member and the second lateral member; and
an exterior doubler surface spaced from the interior doubler surface;
wherein the column, the beam, and the two exterior doubler plates are configured such that, when the two or more connectors are connected to the beam and the two exterior doubler plates, and when each of the two exterior doubler plates is mounted to the column, each of the two exterior doubler plates do not enclose any portion of the sides of the beam.
17. The kit of claim 15 , wherein the two or more connectors define at least one cutout that is configured to accommodate at least a portion of the column therein.
18. The kit of claim 15 , wherein at least one of the two or more connectors includes an angle having an additional connector wall extending generally perpendicularly from the connector wall.
19. The kit of claim 15 , wherein at least one of the two or more connectors includes a splice plate.
20. The kit of claim 15 , wherein one or more of at least one exterior doubler plate coupled to the column or the two or more connectors includes at least one structural fuse.