Joint

FIELD: construction.

SUBSTANCE: joint comprises ends of connected elements with separate flanges along the height of the cross section and bracing bolts. A curvilinear sheet gusset is placed between separate flanges. The gusset is fixed by the ends to flanges, and along the convex surface - to the preliminarily cut cross section of the connected elements.

EFFECT: increased bearing capacity of a connection.

3 dwg

 

The invention relates to the field of construction, namely, the butt joints stretch and bending elements of metal structures.

Known joint connection stretched rods, including the ends of the rods, the joint flanges with edges that are drawn together by bolts [AC No. 1060773, IPC A04B 1/58. Bulletin No. 46 from 15.12.83].

A disadvantage of the known solution is that it requires a significant consumption of solid steel flanges are manufactured from special steel with a guaranteed strength in the thickness direction of the car.

Know more butt joint in bending elements, which includes all elements, flanges with edges and coupling bolts. [the book. Metal construction. Edited by SCI Medisina. 11th ed. M. Ed. Academy. 2008 str].

The lack of a butt-joint is high cost, due to the fact that the flanges made the entire height of the loft of special steel of the same thickness, although the lower part of the flange work in tension and the upper compression, which do not require special steel and thick flanges.

Closest to the invention is a butt joint, including the ends of the connected elements with separate height-section flanges, while in the tension zone of the flange has a greater thickness and is made of special the hoist, and in the compressed zone of the flange can be made of ordinary steel and thinner, with an additional strip [kN. Metal construction. The guide designer. Ed. by V.V. Kuznetsov, M. ACB, 1998, str. Resv].

A disadvantage of the known joint is the low strength of the weld flange element, as the force is transferred to a small area of the element is limited by the height of the flange.

The invention is directed to increasing the carrying capacity of the connection.

The result is achieved that in butt connection, including the ends of the connected elements with separate height-section flanges and coupling bolts, between the separated flanges posted by curvilinear sheet fasone attached the ends to the flanges, and a convex surface to the previously cut section of connected elements.

Figure 1 shows an example of a beam I-beam consisting of two forwarding elements with butt connection; figure 2 shows the node A butt joint; figure 3 Dan cut 1-1 in figure 2.

Joint connection includes the ends of the connected elements 1 with separate flanges, respectively, the upper 2 and lower 3 zones. Between the flanges 2 and 3 is placed a curved sheet fasone 4. The ends of the sheet of fasolki 4 is attached by welding to the bottom 2 and top 3 flan is am. On the convex side of the sheet fasone 4 on the welding prikreplena to pre-cut section of item 1.

The device is a butt-joint is performed in the following sequence. At the ends of the connected elements 1 at their upper and lower belts are installing and welding attach separate the flanges 2 and 3. Between the flanges 2 and 3 cut curvilinear plot elements 1 corresponding to the curvature of the sheet of fasolki 4. Fesenko 4 ends attached by welding to the flanges 2 and 3, and a convex surface to cut the cross section of the elements 1. Final Assembly joint conduct by the combination of flange members 1 and install coupling bolts 5.

In butt connection, due to the presence of a curved sheet of fasolki connecting flanges, ensures the redistribution of effort, which leads to the increase of carrying capacity of welds securing the flanges to the cross-section of connected elements. Additionally, the cut section of the elements between the curved gussets connected elements forms a cavity that allows you to skip through them utilities.

Joint connection, comprising the ends of connected elements with separate height-section flanges and coupling bolts, characterized in that between the separated flanges posted by curvilinear sheet f is of PMC, attached the ends to the flanges, and a convex surface to the previously cut section of connected elements.



 

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