Gate-type supporting structure and longitudinal supporting system

Abstract

The utility model discloses a gate-type support structure and longitudinal support system, the gate-type support structure comprises a truss girder and a diagonal bar, the truss girder comprises a truss upper chord and a truss lower chord, the two ends of the truss upper chord and the truss lower chord are respectively hinged to a column through a first gusset plate, the upper end of the diagonal bar is hinged to the truss lower chord through a second gusset plate, and the upper end of the diagonal bar is hinged to the column through a second gusset plate. The lower end of the inclined supporting rod is hinged to the lower end of the stand column through a third gusset plate, the truss upper chord, the truss lower chord and the inclined supporting rod are each formed by assembling two pieces of angle steel welded together through a connecting plate, and each gusset plate is clamped between the two first wing plates of the two corresponding pieces of angle steel. The two steel angles are assembled to form a main rod piece of the door type supporting structure, stress distribution is uniform and reasonable, the design requirement is met, and the whole structure is more stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, concretely relates to a door type support structure and longitudinal support system. BACKGROUND

[0002] In the prior art, a longitudinal support system composed of multiple columns and beams is usually arranged in a steel structure workshop. The longitudinal support system has good vertical bearing performance, but has the problem of insufficient lateral stiffness and easy instability. Therefore, a support structure needs to be arranged between the columns.

[0003] The support structure in the prior art, especially the door type support structure, is usually composed of a single bar member. These members are usually connected to the columns through a node plate. However, the single member is usually arranged on one side of the node plate, which causes insufficient strength at the connection node, unreasonable stress, easy stress concentration, instability or damage of the structure, and insufficient reliability of the overall structure. SUMMARY

[0004] The utility model aims to provide a door type support structure and longitudinal support system which can effectively strengthen the support structure with large span and opening requirements and enhance the reliability thereof.

[0005] To solve the above technical problems, the utility model provides a door type support structure, comprising:

[0006] A truss beam extends in the transverse direction and comprises truss top chords and truss bottom chords arranged at intervals in the vertical direction. The two ends of the truss top chords and the truss bottom chords are respectively hinged to the columns through first node plates; and

[0007] A diagonal brace has its upper end hinged to the truss bottom chord through a second node plate and its lower end hinged to the lower end of the column through a third node plate.

[0008] The truss top chords, the truss bottom chords, and the diagonal brace each comprise two angle steels and a connecting plate. Each angle steel comprises first and second wing plates arranged at an angle. The first wing plates of the two angle steels are respectively attached to and welded to the connecting plate on the side opposite to the corresponding second wing plate. The first node plate is arranged between the first wing plates of the two angle steels of the truss top chords or the truss bottom chords. The second node plate is arranged between the first wing plates of the two angle steels of the truss bottom chords or the diagonal brace. The third node plate is arranged between the first wing plates of the two angle steels of the diagonal brace.

[0009] Optionally, the connecting plate is arranged at intervals along the length direction of the corresponding angle steel.

[0010] Optionally, two edges of the first wing plate in the width direction correspond to the fillet welding of the connecting plate.

[0011] Optionally, the first node plate is provided with a first bolt, the first bolt sequentially penetrating one of the first wing plates of the truss top chord or the truss bottom chord, the first node plate and the other first wing plate, the second node plate is provided with a second bolt, the second bolt sequentially penetrating one of the first wing plates of the diagonal brace, the second node plate and the other first wing plate, and the third node plate is provided with a third bolt, the third bolt sequentially penetrating one of the first wing plates of the diagonal brace, the third node plate and the other first wing plate.

[0012] Optionally, the first bolt is provided in plurality, and the plurality of first bolts are distributed in intervals along the length direction of the truss top chord or the truss bottom chord; and / or,

[0013] the second bolt is provided in plurality, and the plurality of second bolts are distributed in intervals along the length direction of the diagonal brace; and / or,

[0014] the third bolt is provided in plurality, and the plurality of third bolts are distributed in intervals along the length direction of the diagonal brace.

[0015] Optionally, the truss beam further comprises a plurality of web members, each of the web members extending in an inclined manner, and two ends of each of the web members are correspondingly hinged to the truss top chord and the truss bottom chord.

[0016] Optionally, the first node plate and the second node plate are welded to the column.

[0017] Optionally, the column is provided with a stiffening rib at the upper end and the lower end corresponding to the first node plate and the second node plate.

[0018] To solve the above technical problems, the utility model provides a kind of longitudinal support system, comprising:

[0019] A plurality of columns, the plurality of columns are arranged in intervals in the transverse direction; and,

[0020] The portal support structure as described above is arranged between two adjacent columns in the transverse direction.

[0021] Optionally, the net spacing between the two columns provided with the portal support structure in the transverse direction is greater than or equal to 9m and less than or equal to 12m.

[0022] The technical scheme provided by the utility model has the following advantages:

[0023] This utility model provides a portal frame support structure and longitudinal support system. The portal frame support structure includes a truss beam and diagonal braces. The truss beam includes a top chord and a bottom chord, with both ends of the top and bottom chords hinged to columns via first node plates. The upper end of the diagonal brace is hinged to the bottom chord via a second node plate, and the lower end is hinged to the lower end of the column via a third node plate. The top chord, bottom chord, and diagonal brace are each assembled from two angle steels welded together by connecting plates. The first node plate is sandwiched between the first flanges of the two angle steels of the top or bottom chord, the second node plate is sandwiched between the first flanges of the two angle steels of the bottom chord or diagonal brace, and the third node plate is sandwiched between the first flanges of the two angle steels of the diagonal brace. Thus, the main members of the portal frame support structure are formed by assembling two angle steels, and the node plates are sandwiched between the first flanges of the two angle steels at important connection nodes, resulting in a uniform and reasonable stress distribution that meets design requirements and makes the entire structure more stable and reliable. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 An assembly diagram of an embodiment of the longitudinal support system provided by this utility model;

[0026] Figure 2 for Figure 1 Detailed drawing of the central portal frame support structure;

[0027] Figure 3 for Figure 2 Schematic diagram of the connection node between the diagonal brace and the column;

[0028] Figure 4 for Figure 3 Sectional view at point AA;

[0029] Figure 5 for Figure 2 Schematic diagram of the connection node between the lower chord of the middle truss and the diagonal brace.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1000 - longitudinal support system; 100 - portal support structure; 10 - truss beam; 11 - truss top chord; 12 - truss bottom chord; 13 - web member; 20 - diagonal brace; 30 - column; 31 - stiffener; 40 - angle; 41 - first wing plate; 42 - second wing plate; 43 - connecting plate; 50 - first node plate; 51 - first bolt; 60 - second node plate; 61 - second bolt; 70 - third node plate; 71 - third bolt. DETAILED DESCRIPTION

[0033] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. The present application will be described in detail below with reference to the drawings and embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0034] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0035] Please refer to Figures 1 to 5 The present application provides a portal support structure 100 and a longitudinal support system 1000 having the same.

[0036] Specifically, please refer to Figure 1 The longitudinal support system 1000 can be used in buildings such as steel structure workshops, and includes a plurality of columns 30 arranged in intervals in the transverse direction, which can be used to bear the floor, roof and other structures of the building. It can be understood that the building generally includes a plurality of longitudinal support systems 1000, and the plurality of longitudinal support systems 1000 can be arranged side by side in the front-rear direction.

[0037] Generally, in order to strengthen the lateral stiffness of the longitudinal support system 1000, a support structure should be provided between some of the columns 30. The support structure is usually composed of two intersecting diagonal bars, and between some spans that may need to be provided with openings such as doors and windows, the support structure composed of diagonal bars will cause obstruction, so the portal support structure 100 needs to be provided. Specifically, the portal support structure 100 is provided between some of the columns 30 adjacent in the transverse direction, and the clear distance in the transverse direction between the two columns 30 provided with the portal support structure 100 is greater than or equal to 9m and less than or equal to 12m. In this way, both sufficient opening space between the columns 30 and the support performance of the portal support structure 100 can be ensured.

[0038] Please continue to refer to Figures 2 to 5In the embodiment, the portal frame structure 100 comprises a truss beam 10 and a diagonal brace 20, wherein the truss beam 10 extends in the transverse direction and comprises a truss upper chord 11 and a truss lower chord 12 arranged in the vertical direction. Preferably, the truss beam 10 further comprises a plurality of web members 13, each of which extends obliquely and is hingedly connected to the truss upper chord 11 and the truss lower chord 12 at two ends thereof. Thus, the truss beam 10 has sufficient height and can bear a large load in a large span.

[0039] Further, please continue to refer to Figure 2 The two ends of the truss upper chord 11 and the truss lower chord 12 are hingedly connected to the column 30 through a first node plate 50. The upper end of the diagonal brace 20 is hingedly connected to the truss lower chord 12 through a second node plate 60, and the lower end of the diagonal brace 20 is hingedly connected to the lower end of the column 30 through a third node plate 70.

[0040] In this way, the truss beam 10 is reasonably stressed and hingedly connected to the two end columns 30, without causing additional bending moment to the columns 30. The truss beam 10 provides favorable lateral support between the large-span columns 30 and can support the structure above the door opening. The diagonal brace 20 supports the middle part of the truss beam 10 from the lower side and transmits and disperses part of the load to the lower end of the column 30, thereby reducing the load of the truss beam 10 and avoiding downward bending and deformation of the truss beam 10.

[0041] The truss upper chord 11, the truss lower chord 12 and the diagonal brace 20 each comprise two angle steels 40 and a connecting plate 43. Each of the angle steels 40 comprises a first wing plate 41 and a second wing plate 42 arranged at an angle. The first wing plates 41 of the two angle steels 40 are respectively attached to and welded to the connecting plate 43 with the side of the first wing plate 41 facing away from the corresponding second wing plate 42. The first node plate 50 is arranged between the first wing plates 41 of the two angle steels 40 of the truss upper chord 11 or the truss lower chord 12. The second node plate 60 is arranged between the first wing plates 41 of the two angle steels 40 of the truss lower chord 12 or the diagonal brace 20. The third node plate 70 is arranged between the first wing plates 41 of the two angle steels 40 of the diagonal brace 20.

[0042] In the embodiment, the main members of the portal frame structure 100 are assembled by two angle steels 40, and the node plates are arranged between the first wing plates 41 of the two angle steels 40 at important connection nodes. The stress distribution is uniform and reasonable, meets the design requirements, and the entire structure is more stable and reliable. The node plate is prevented from being bent and deformed due to large stress on one side.

[0043] On the basis of the previous embodiment, as Figure 2As shown, the connecting plates 43 are arranged in plurality along the length direction of the corresponding angle steels 40. The plurality of connecting plates 43 uniformly and reliably weld the two angle steels 40 into one, so that the whole bar is better in integrity, shares the load together, and is more reliable.

[0044] There are various ways to realize the fixed connection between the connecting plate 43 and the angle steel 40. In the embodiment, the two edges of the first wing plate 41 in the width direction are respectively welded with the connecting plate 43 by fillet welding. In this way, the two components are fixed by a simple and reliable way.

[0045] On the basis of the above embodiment, the first node plate 50 is provided with a first bolt 51, the first bolt 51 sequentially passes through one of the first wing plates 41 of the truss top chord 11 or the truss bottom chord 12, the first node plate 50 and the other first wing plate 41, the second node plate 60 is provided with a second bolt 61, the second bolt 61 sequentially passes through one of the first wing plates 41 of the diagonal brace 20, the second node plate 60 and the other first wing plate 41, and the third node plate 70 is provided with a third bolt 71, the third bolt 71 sequentially passes through one of the first wing plates 41 of the diagonal brace 20, the third node plate 70 and the other first wing plate 41. In the embodiment, the first bolt 51 realizes the hinging of the truss top chord 11 and the column 30, the truss bottom chord 12 and the first node plate 50, the second bolt 61 realizes the hinging of the diagonal brace 20 and the second node plate 60, and the third bolt 71 realizes the hinging of the third node plate 70 and the diagonal brace 20. And for the first bolt 51, the second bolt 61 and the third bolt 71, the two ends are uniformly stressed, and stress concentration is not easy to occur, the stress is reasonable, and the stability is better.

[0046] In order to further reduce the stress of each bolt and improve the reliability, the first bolt 51 is provided in plurality, the plurality of first bolts 51 are arranged in plurality along the length direction of the truss top chord 11 or the truss bottom chord 12; and / or, the second bolt 61 is provided in plurality, the plurality of second bolts 61 are arranged in plurality along the length direction of the diagonal brace 20; and / or, the third bolt 71 is provided in plurality, the plurality of third bolts 71 are arranged in plurality along the length direction of the diagonal brace 20. In this way, the structure reliability is improved, and the reliable hinging connection between the components is also ensured.

[0047] Further, the first node plate 50 and the second node plate 60 are respectively welded to the column 30. In this way, the load transmitted by the diagonal bracing 20 and the truss beam 10 can be reliably transmitted to the column 30. Preferably, the column 30 is respectively provided with a stiffening rib 31 at the upper and lower ends of the first node plate 50 and the second node plate 60. The stiffening rib 31 strengthens the rigidity and strength of the column 30 at the connection joint, further improves the load-bearing capacity of the column 30, and avoids the situation that the column 30 is deformed and damaged due to stress concentration at the connection joint.

[0048] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, other different forms of changes or variations can be made by those skilled in the art without creative labor, and all should belong to the protection scope of the present application.

Claims

1. A portal support structure characterized by, Comprise: a truss beam extending in the transverse direction, comprising truss top chords and truss bottom chords arranged in intervals in the vertical direction, both ends of the truss top chords and the truss bottom chords being respectively hinged to the columns by first node plates; and a diagonal brace, the upper end of the diagonal brace being hinged to the truss bottom chord by a second node plate, the lower end of the diagonal brace being hinged to the lower end of the column by a third node plate; wherein the truss top chords, the truss bottom chords and the diagonal brace each comprise two angle steels and a connecting plate, each of the angle steels comprises a first wing plate and a second wing plate arranged at an angle, the first wing plates of the two angle steels respectively abut and are welded to the connecting plate on the side away from the corresponding second wing plate, the first node plate is clamped between the first wing plates of the two angle steels of the truss top chord or the truss bottom chord, the second node plate is clamped between the first wing plates of the two angle steels of the truss bottom chord or the diagonal brace, and the third node plate is clamped between the first wing plates of the two angle steels of the diagonal brace.

2. The portal support structure of claim 1, wherein, The connecting plate is arranged in intervals along the length direction of the corresponding angle steel.

3. The portal support structure of claim 2, wherein, The two edges of the first wing plate in the width direction are respectively correspondingly fillet welded to the connecting plate.

4. The portal support structure of claim 1, wherein, The first node plate is provided with a first bolt, the first bolt sequentially passes through one of the first wing plates of the truss top chord or the truss bottom chord, the first node plate and the other first wing plate, the second node plate is provided with a second bolt, the second bolt sequentially passes through one of the first wing plates of the diagonal brace, the second node plate and the other first wing plate, and the third node plate is provided with a third bolt, the third bolt sequentially passes through one of the first wing plates of the diagonal brace, the third node plate and the other first wing plate.

5. The portal support structure of claim 4, wherein, The first bolt is provided in a plurality of, and the plurality of first bolts are distributed in intervals along the length direction of the truss top chord or the truss bottom chord; and / or, The second bolt is provided in a plurality of, and the plurality of second bolts are distributed in intervals along the length direction of the diagonal brace; and / or, The third bolt is provided in a plurality of, and the plurality of third bolts are distributed in intervals along the length direction of the diagonal brace.

6. The portal support structure of any one of claims 1 to 5, wherein, The truss beam further comprises a plurality of web members, each of the web members respectively extends obliquely, and both ends of each of the web members are respectively hinged to the truss top chord and the truss bottom chord.

7. The portal support structure of any one of claims 1 to 5, wherein, The first node plate and the second node plate are respectively welded to the column.

8. The portal support structure of claim 7, wherein, The column is respectively provided with stiffening ribs at the upper and lower ends corresponding to the first node plate and the second node plate.

9. A longitudinal support system, characterized in that Comprise: a plurality of columns, the plurality of columns being arranged in intervals in the transverse direction; and The portal support structure according to any one of claims 1 to 8, the portal support structure being arranged between two of the columns adjacent in the transverse direction.

10. The longitudinal support system of claim 9, wherein, The net distance in the transverse direction between the two columns provided with the portal support structure is greater than or equal to 9m and less than or equal to 12m.

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