Parallelogram steel box girder component

Abstract

The utility model provides a parallelogram steel box girder component which comprises a steel box girder body with a parallelogram section, inner partition plates, a plurality of first steel corbels and a plurality of second steel corbels, and the inner partition plates, the first steel corbels and the second steel corbels are distributed in the extending direction of the steel box girder body at intervals. The inner partition plate is welded in an inner cavity of the steel box girder body, the first steel corbel and the second steel corbel are symmetrically welded to a left web and a right web of the steel box girder body, and the first steel corbel and the second steel corbel are perpendicular to the cross section of the left web and the cross section of the right web and are parallel to the plane where the inner partition plate is located. The steel box girder body with the parallelogram section, the plurality of inner partition plates are welded and fixed, and the plurality of first steel corbels and the second steel corbels are symmetrically distributed, so that the stress uniformity of a main body structure and the stability of the section of the steel box girder are ensured while a building steel structure pursuing a special shape is met.

Description

Technical Field

[0001] The utility model relates to the technical field of buildings, and in particular to a parallelogram steel box beam component. Background Art

[0002] At present, the national construction industry is in a stage of rapid development. With the increasing scale of steel structure projects (high-rise buildings, large industrial plants, stadiums, airports, railway stations), the structural form of the main steel structure is becoming more diversified and complex, and the main structure is subject to complex stress. The cross-section of the steel box girder has also changed from a single rectangular cross-section to a variable cross-section structure such as a diamond and quadrilateral.

[0003] Therefore, there is an urgent need to develop a building steel structure with a main structure that is evenly stressed and not easy to deform, and at the same time can meet the pursuit of special shapes. Utility Model Content

[0004] In order to solve the problem that the existing steel box girder has a single cross-sectional structure and cannot meet the needs of building steel structures with special shapes, the present application provides a parallelogram steel box girder component, which not only meets the needs of diverse building structure shapes, but also ensures uniform force on the main structure and stable cross-sectional area of ​​the steel box girder.

[0005] The utility model proposes a parallelogram steel box girder component, comprising a steel box girder body with a parallelogram cross-section, an inner partition, a first steel corbel and a second steel corbel, a plurality of inner partitions, a first steel corbel and a second steel corbel are spaced apart in the extension direction of the steel box girder body, the inner partition is welded in the inner cavity of the steel box girder body, the first steel corbel and the second steel corbel are symmetrically welded to the left and right webs of the steel box girder body, and the first steel corbel and the second steel corbel are perpendicular to the cross-sections of the left and right webs and parallel to the plane where the inner partition is located.

[0006] In some specific embodiments, the first steel corbel and / or the second steel corbel comprises two corbel flange plates and a corbel web plate, and the corbel web plate is perpendicular to the corbel flange plates.

[0007] In some specific embodiments, the corbel web is provided with connection holes for bolts to pass through.

[0008] In some specific embodiments, the steel box girder body further includes an upper wing plate and a lower wing plate which are parallel to each other, and the upper wing plate, the lower wing plate, the left web plate and the right web plate mutually surround an inner cavity.

[0009] In some specific embodiments, the steel box girder body further includes a pad disposed at the welding point between the flange plate and the web plate.

[0010] In some specific embodiments, the inner partition is provided with a concave rounded corner that matches with the backing plate.

[0011] In some specific embodiments, the cross section of the steel box girder body is a parallelogram with an angle of 40°-60°.

[0012] In some specific embodiments, equipment holes parallel to the upper wing plate and / or the lower wing plate are provided on the left web plate and the right web plate.

[0013] In some specific embodiments, the steel box girder component further includes a stiffening plate, and both ends of the stiffening plate are respectively welded and fixed to the upper and lower wing plates of the steel box girder body.

[0014] In some specific embodiments, the groove angle of the steel box girder body is 38°-43°.

[0015] Compared with the prior art, the beneficial results of the utility model are:

[0016] 1. The welding and fixation of the inner partition and the stiffening plate avoids the distortion of the parallelogram steel box girder, ensures the scale of the parallelogram section and improves product quality.

[0017] 2. The symmetrical spacing of several steel brackets ensures the stress condition of the main structure and avoids cracks or even breakage.

[0018] 3. The pre-assembly and welding of steel brackets reduces the labor intensity of operators, improves the efficiency of on-site welding operations, and speeds up the progress of the project. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and are used together with the description to explain the principles of the utility model. It will be easy to recognize many expected advantages of other embodiments and embodiments because they become better understood by reference to the following detailed description. The elements of the accompanying drawings are not necessarily in proportion to each other. The same reference numerals refer to corresponding similar parts.

[0020] Figure 1 It is a schematic diagram of the overall structure of a parallelogram steel box beam component according to an embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of a parallelogram steel box beam member provided with a stiffening plate according to an embodiment of the utility model;

[0022] Figure 3 is a partial enlarged view of A according to an embodiment of the utility model;

[0023] Figure 4 It is a schematic diagram of the groove of a parallelogram steel box girder according to an embodiment of the utility model.

[0024] The meaning of the numbers in the figure: 100-steel box girder body, 101-upper wing plate, 102-lower wing plate, 103-right web plate, 104-left web plate, 105-acute groove, 106-pad, 107-obtuse groove, 108-equipment hole, 200-steel corbel, 201-first steel corbel, 202-second steel corbel, 2011-corbel flange plate, 2012-corbel web plate, 2013-connecting hole, 300-inner partition, 301-concave fillet, 400-stiffening plate. DETAILED DESCRIPTION

[0025] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are shown by illustrative specific embodiments in which the present invention can be practiced. To this end, directional terms, such as "top", "bottom", "left", "right", "up", "down", etc., are used with reference to the orientation of the figures described. Because the components of the embodiments can be positioned in several different orientations, directional terms are used for the purpose of illustration and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be adopted in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0026] The utility model proposes a parallelogram steel box beam component. Figure 1 The overall structural diagram of a parallelogram steel box beam component of an embodiment of the utility model is shown. Figure 2 The overall structural diagram of a parallelogram steel box beam member provided with a stiffening plate according to an embodiment of the present invention is shown in FIG. Figure 1 and Figure 2 As shown, the parallelogram steel box girder component includes a steel box girder body 100 with a parallelogram cross section, an inner partition 300 and a plurality of steel corbels 200. A plurality of inner partitions 300 and a plurality of steel corbels 200 are spaced apart in the extension direction of the steel box girder body 100, and the inner partition 300 is welded in the inner cavity of the steel box girder body 100. The steel box girder body 100 includes an upper wing plate 101, a lower wing plate 102, a right web plate 103 and a left web plate 104 welded and fixed to the upper and lower wing plates, and the upper wing plate 101, the lower wing plate 102, the right web plate 103 and the left web plate 104 are welded to each other to form an inner cavity with a parallelogram cross section, and the inner partition 300 is vertically welded in the inner cavity of the steel box girder body 100. The steel corbel 200 includes a first steel corbel 201 and a second steel corbel 202 . The cross sections of the first steel corbel 201 and the second steel corbel 202 are perpendicular to the right web plate 103 and / or the left web plate 104 and are parallel to the plane where the inner partition plate 300 is located.

[0027] In a specific embodiment, the first steel corbel 201 and / or the second steel corbel 202 includes two corbel flange plates 2011 and a corbel web 2012. The corbel web 2012 is vertically arranged between the two corbel flange plates 2011. The two corbel flange plates 2011 and the box beam are fully melted. The corbel web 2012 adopts double-sided fillet welds, and the corbel web 2012 is provided with connecting holes 2013 for bolts to pass through.

[0028] In a specific embodiment, the inner partition 300 is welded in the parallelogram inner cavity formed by the upper wing plate 101, the lower wing plate 102, the right web plate 103 and the left web plate 104 to ensure the cross-sectional size of the parallelogram, and the inner partition 300 is fixedly welded in the inner cavity of the steel box girder body 100 by double-sided fillet welding. Preferably, the parallelogram inner cavity cross-section can be supported by a vertical stiffening plate 400, and the two ends of the stiffening plate 400 are respectively welded and fixed to the upper wing plate 101 and the lower wing plate 102 of the steel box girder body 100 to ensure the cross-sectional size.

[0029] Continue to refer Figure 3 , Figure 3 The enlarged partial view of A of an embodiment of the utility model is shown. The steel box girder body 100 also includes a pad 106 disposed at the welding place between the flange and the web, and the inner partition 300 is provided with an inner concave fillet 301 that matches the pad 106. The setting of the pad 106 can prevent the molten metal from flowing and make the root weld through. In order to ensure the welding quality, prevent the grooves at both ends of the weld, and reduce the influence of stress concentration on the dynamic load, the pad 106 and the inner partition 300 cooperate with each other to improve the stability of the parallelogram cross section.

[0030] In a specific embodiment, equipment holes 108 are provided on the left and right webs of the steel box girder. The equipment holes 108 are parallel to the upper and lower wing plates, and the equipment holes 108 on the left and right webs need to maintain concentricity.

[0031] In a specific embodiment, reference Figure 4 , Figure 4 The schematic diagram of the groove of a parallelogram steel box girder of an embodiment of the utility model is shown. The cross section of the steel box girder body is a parallelogram with an angle of 40°-60°. Preferably, the angle of the parallelogram steel box girder is 47°. A 30mm margin is added to the length direction of the main wing plate and the web plate, and a semi-automatic flame cutting machine is used for processing. The main weld of the steel box girder requires partial penetration, with a penetration depth of not less than 2 / 3t (t represents the thickness of the steel plate) and not less than 14mm, wherein the steel box girder is fully penetrated within 100mm at both ends, such as Figure 4As shown, the acute angle weld, the acute angle groove 105 is opened on the web, the groove depth is greater than 2 / 3t, the groove angle is 38°-43°, the obtuse angle weld, the obtuse angle groove 107 is opened on the wing plate, the groove depth is greater than 2 / 3t, the groove angle is 38°-43°, and the welds between the inner partition 300 and the wing plate and web parts are fully penetrated.

[0032] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recorded in mutually different dependent claims does not indicate that the combination of these measures cannot be used to profit. Any figure mark in the claims should not be considered to limit the scope.

Claims

1. A parallelogram steel box beam member, characterized in that: It includes a steel box girder body with a parallelogram cross-section, an inner partition, a first steel corbel and a second steel corbel, wherein a plurality of inner partitions, a first steel corbel and a second steel corbel are spaced apart in the extension direction of the steel box girder body, the inner partition is welded in the inner cavity of the steel box girder body, the first steel corbel and the second steel corbel are symmetrically welded to the left and right webs of the steel box girder body, the first steel corbel and the second steel corbel are perpendicular to the cross-sections of the left and right webs and parallel to the plane where the inner partition is located.

2. According to the parallelogram steel box girder member of claim 1, the first steel corbel and / or the second steel corbel comprises two corbel flange plates and a corbel web, and the corbel web is perpendicular to the corbel flange plate.

3. The parallelogram steel box beam member according to claim 2, characterized in that: The corbel web is provided with connection holes for bolts to pass through.

4. The parallelogram steel box beam member according to claim 1, characterized in that: The steel box girder body further comprises an upper wing plate and a lower wing plate which are parallel to each other, and the upper wing plate, the lower wing plate, the left web plate and the right web plate mutually surround the inner cavity.

5. The parallelogram steel box beam member according to claim 4, characterized in that: The steel box girder body also includes a pad arranged at the welding position between the wing plate and the web plate.

6. The parallelogram steel box beam member according to claim 5, characterized in that: The inner partition plate is provided with an inner concave rounded corner matched with the pad.

7. The parallelogram steel box beam member according to claim 1, characterized in that: The cross section of the steel box girder body is a parallelogram with an angle of 40°-60°.

8. The parallelogram steel box beam member according to claim 4, characterized in that: The left web plate and the right web plate are provided with equipment holes which are parallel to the upper wing plate and / or the lower wing plate.

9. The parallelogram steel box beam member according to claim 1, characterized in that: The steel box beam component also includes a stiffening plate, and both ends of the stiffening plate are respectively welded and fixed to the upper and lower wing plates of the steel box beam body.

10. The parallelogram steel box beam member according to claim 1, characterized in that: The groove angle of the steel box girder body is 38°-43°.

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