Abstract: A swaged interface includes a male element that includes a male cavity defined by at least one male sidewall, and a plurality of first openings defined in the at least one male sidewall. The swaged interface also includes a female element that includes a female cavity defined by at least one female sidewall, and a plurality of second openings defined in the at least one female sidewall. The female element has an inner cross section sized to receive the male element such that each of the first openings is aligned with a respective one of the second openings. The inner cross section is formed by swaging.

Abstract: An interface for a structural member includes at least one first sidewall that extends from a first end along a longitudinal direction and defines a first cavity. The at least one first sidewall defines a female end section and includes a transversely oriented female end surface at the first end. The interface also includes at least one second sidewall that extends from a second end along the longitudinal direction and defines a second cavity. The at least one second sidewall defines a male end section adjacent the second end and configured to be received within the first cavity, and a stop surface offset longitudinally from the second end and oriented to bear against the female end surface in substantially face-to-face contact when the male end section is received within the female end section. The stop surface and the male end section are integrally formed and monolithic.

Abstract: An interface for a structural member includes at least one first sidewall that extends from a first end along a longitudinal direction and defines a first cavity. The at least one first sidewall defines a female end section and includes a transversely oriented female end surface at the first end. The interface also includes at least one second sidewall that extends from a second end along the longitudinal direction and defines a second cavity. The at least one second sidewall defines a male end section adjacent the second end and configured to be received within the first cavity, and a stop surface offset longitudinally from the second end and oriented to bear against the female end surface in substantially face-to-face contact when the male end section is received within the female end section. The stop surface and the male end section are integrally formed and monolithic.

Abstract: An interface for a structural column includes a female end section that includes at least one first sidewall that extends from a first end along a longitudinal direction and defines a first cavity. An interior surface of the at least one first sidewall tapers transversely outwardly along the female end section towards the first end. The interface also includes a male end section that includes at least one second sidewall that extends from a second end along the longitudinal direction and defines a second cavity. The at least one second sidewall is configured to be received within, and oriented in substantially face-to-face adjacent relationship with, the at least one first sidewall. Each of the female end section and the male end section is a respective unitary casting.

Abstract: An elongated hollow component includes a body extending from a first end to a second end and defining a longitudinal axis. The body includes a plurality of layers each circumscribing the longitudinal axis. The plurality of layers include a base layer formed of a first steel material, an inner surface layer formed of a second steel material and coupled directly to the base layer such that the base layer circumscribes the inner surface layer and the inner surface layer is exposed to an interior cavity of the elongated hollow component. An outer surface layer formed of the second steel material is coupled directly to the base layer such that the outer surface layer circumscribes the base layer. The first steel material has a chromium content of less than 10.5% by mass and the second steel material has a chromium content of at least 10.5% by mass.

Abstract: An elongated hollow component includes a body extending from a first end to a second end and defining a longitudinal axis. The body includes a plurality of layers each circumscribing the longitudinal axis. The plurality of layers includes a base layer including a first steel material, and an inner surface coating coupled to a radially inner surface of the base layer. The inner surface coating includes a second steel material.

Abstract: An interface for a structural column includes a female end section that includes at least one first sidewall that extends from a first end along a longitudinal direction and defines a first cavity. An interior surface of the at least one first sidewall tapers transversely outwardly along the female end section towards the first end. The interface also includes a male end section that includes at least one second sidewall that extends from a second end along the longitudinal direction and defines a second cavity. The at least one second sidewall is configured to be received within, and oriented in substantially face-to-face adjacent relationship with, the at least one first sidewall. An exterior surface of the at least one second sidewall tapers transversely inwardly, complementary to the at least one first sidewall, along the male end section towards the second end.

Abstract: An interface for a structural column includes a female end section that includes at least one first sidewall that extends from a first end along a longitudinal direction and defines a first cavity. An interior surface of the at least one first sidewall tapers transversely outwardly along the female end section towards the first end. The interface also includes a male end section that includes at least one second sidewall that extends from a second end along the longitudinal direction and defines a second cavity. The at least one second sidewall is configured to be received within, and oriented in substantially face-to-face adjacent relationship with, the at least one first sidewall. An exterior surface of the at least one second sidewall tapers transversely inwardly, complementary to the at least one first sidewall, along the male end section towards the second end.

Abstract: An interface for a structural column includes a female end section that includes at least one first sidewall that extends from a first end along a longitudinal direction and defines a first cavity. An interior surface of the at least one first sidewall tapers transversely outwardly along the female end section towards the first end. The interface also includes a male end section that includes at least one second sidewall that extends from a second end along the longitudinal direction and defines a second cavity. The at least one second sidewall is configured to be received within, and oriented in substantially face-to-face adjacent relationship with, the at least one first sidewall. Each of the female end section and the male end section is a respective unitary casting.

Abstract: A swaged interface includes a male element that includes a male cavity defined by at least one male sidewall, and a plurality of first openings defined in the at least one male sidewall. The swaged interface also includes a female element that includes a female cavity defined by at least one female sidewall, and a plurality of second openings defined in the at least one female sidewall. The female element has an inner cross section sized to receive the male element such that each of the first openings is aligned with a respective one of the second openings. The inner cross section is formed by swaging.

Abstract: A connector for a structural column includes a male element of a first column segment. The male element includes a male outer surface and a plurality of first fastener apertures. The connector also includes a female element of a second column segment. The female element includes a female inner surface and a plurality of second fastener apertures. At least one of the female element and the male element is swaged such that the female inner surface of the female element is sized to receive the male outer surface of the male element such that each of the first fastener apertures aligns with a corresponding one of the second fastener apertures.

Abstract: A connector for coupling first and second hollow structural section (HSS) column segments includes a plurality of splice plates including first and second splice plate pairs. Each splice plate pair includes an interior splice plate configured to couple against an interior surface of a respective HSS column wall and an exterior splice plate configured to couple against an exterior surface of the wall. A plurality of plate fastener openings is defined in each of the splice plates of the first and second pairs. A plurality of fasteners is each configured to be received in a respective aligned series of openings such that the column segments are securely coupled together. Each respective aligned series of openings includes a plate fastener opening defined in one of the exterior splice plates, an opening defined in one of the column walls, and a plate fastener opening defined in one of the interior splice plates.

Abstract: A method of forming a tubular structure includes mechanically pickling a metal strip. The metal strip includes opposing first and second surfaces. The method also includes stippling indicia onto the first surface of the metal strip. The indicia includes an informational pattern. The method further includes forming the metal strip into a tubular structure such that the first surface forms an interior surface of the tubular structure.

Abstract: An elongated hollow component includes a body extending from a first end to a second end and defining a longitudinal axis. The body includes a plurality of layers each circumscribing the longitudinal axis. The plurality of layers includes a base layer including a first steel material, and an inner surface coating coupled to a radially inner surface of the base layer. The inner surface coating includes a second steel material.

Abstract: A connector for coupling a first column segment having a first inner surface and a first end surface to a second column segment having a second inner surface and a second end surface such that the end surfaces are adjacent one another is provided. The connector includes a plurality of fasteners and a plurality of plates each having a front face, a rear face, and a plurality of fastener apertures extending from the front face toward the rear face. Each of the fastener apertures is sized to receive one of the fasteners when coupling the first column segment to the second column segment such that the plates are spaced apart from one another. Each of the front faces is contoured to seat flush against the first inner surface and the second inner surface when the plates span the adjacent end surfaces of the coupled-together column segments.

Abstract: A connector is provided. The connector includes a flange defining an opening. The connector also includes an insert having a plurality of plates. Each of the plates extends through the opening of the flange. The connector further includes an actuator coupling the insert to the flange. The plurality of plates are movable relative to the flange by operating the actuator.