Spatial bending steel beam and steel structure for a pitched roof

Abstract

A three-dimensional steel bending beam comprising: a first beam section (1) with an I-shaped cross-section; a second beam section (2) with an I-shaped cross-section, wherein an inclusion angle exists between an axis of the second beam section (2) and an axis of the first beam section (1); wherein an inclusion angle is arranged between a plane in which a web of the second beam section (2) is arranged and a plane in which a web of the first beam section (1) is located; a transition section (3), wherein the transition section (3) comprises a transition web (305) and a transition wing; both ends of the transition web (305) are connected to the web of the first beam section (1) and the web of the second beam section (2), respectively; and both sides of the transition wing are connected to a wing of the first beam section (1) and a wing of the second beam section (2), respectively.

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