A profile structure and an aluminum alloy girder profile having the profile structure

Abstract

The present application relates to the technical field of profile structure, and particularly relates to a profile structure, which comprises two or more groups of mutually connected profile plates, and the two groups of mutually connected profile plates have preset curvature function curve transition portions at the connecting positions. The present application also provides an aluminum alloy girder profile with the profile structure, which comprises a wing plate and a web plate, and the wing plate and the web plate are connected by a preset curvature function curve transition. The preset curvature function curve transition portion of the profile reduces the extrusion difficulty of the profile, improves the impact resistance and fatigue resistance of the profile, enhances the strength and fatigue resistance of the transition position of the profile, makes the connecting position not prone to fatigue cracks, and makes the transition smoother, so that deformation is not prone to occur in the profile hoisting and processing process, thereby improving the assembly precision of the aluminum alloy frame girder.

Claims

1. A profile structure, characterized in that, It includes two or more sets of interconnected profile plates, wherein the two sets of interconnected profile plates have a transition section with a preset curvature function curve at the connection point; The preset curvature function curve transition section is the G3 curvature function curve transition section; The two sets of profile plates connected to each other have a preset curvature function curve transition section at the external and internal corners of the connection point; The fitting function model for the transition section of the G3 curvature function curve is f(x) = (p1*x) / ( ... 3 +p2*x 2 +p3*x+p4) / (x 3 +q1*x 2 +q2*x+q3), where q and p are the coefficients of the fitting function, and x is the unknown of the function.

2. An aluminum alloy beam profile having the profile structure of claim 1, comprising a flange and a web, characterized in that, The wing plate and the web plate are connected by a preset curvature function curve.

3. The aluminum alloy beam profile according to claim 2, characterized in that, The wing plate and the web plate are integrally formed structures.

4. The aluminum alloy beam profile according to claim 2, characterized in that, The wing plate includes an upper wing plate and a lower wing plate, and the web plate includes an upper web plate and a lower web plate. The upper wing plate and the upper web plate are connected, the lower wing plate and the lower web plate are connected, and the upper web plate and the lower web plate are fastened together.

5. The aluminum alloy beam profile according to claim 4, characterized in that, The upper web plate is provided with a fastening groove, and the lower web plate is provided with a fastening boss. The fastening groove and the fastening boss are fastened together.

6. The aluminum alloy beam profile according to claim 4, characterized in that, The upper web and the lower web are connected by riveting.

7. The aluminum alloy beam profile according to claim 2, characterized in that, Both the wing plate and the web plate have the preset curvature function curve transition section at the two inside corners of the connection.

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