CN217839670U - Upper chord reinforced combined steel truss structure - Google Patents
Upper chord reinforced combined steel truss structure Download PDFInfo
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- CN217839670U CN217839670U CN202221711702.7U CN202221711702U CN217839670U CN 217839670 U CN217839670 U CN 217839670U CN 202221711702 U CN202221711702 U CN 202221711702U CN 217839670 U CN217839670 U CN 217839670U
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Abstract
The utility model discloses a combination formula steel truss structure is strengthened to last quarter, including concrete layer and bridge floor, concrete layer's below is provided with the steel truss combination, and the steel truss combination includes steel truss upper chord, steel truss lower chord, steel truss web and reinforcing bar post, the reinforcing bar post is located the both ends of steel truss upper chord and steel truss lower chord and welds, the steel truss web alternately is provided with a plurality of groups, the fixed cantilever beam backup pad combination that is provided with between concrete layer and the steel truss upper chord. The utility model relates to an upper chord reinforced combined steel truss structure; the flange diagonal brace plays a role in auxiliary support for the support plate in the vacant state and the structure above the support plate, and the flange diagonal brace and the T-shaped diagonal insertion rib are crossed with each other, so that the structural strength of a local area is enhanced, the support effect is further strengthened, the connection effect between the upper end carrier and the steel truss is improved, the flange diagonal brace is suitable for different working conditions, and better use prospects are brought.
Description
Technical Field
The utility model relates to a bridge construction technical field, in particular to upper chord strengthening combined type steel truss structure.
Background
The steel truss is a truss made of steel, roof structures of industrial and civil buildings, crane beams, bridges, hydraulic gates and the like, the steel truss is commonly used as a main bearing component, and in the structure of the steel bridge, the steel truss is also an important supporting component, and the use of the long-span steel structure truss beam is gradually increased, so that the steel truss has the advantages of long service life and convenience in construction and installation; however, the concrete slabs are paved on the steel truss at present, the web plate in the area between the concrete slabs and the steel truss is heavy, the stress of the steel truss below the steel truss is increased, the flange parts of the concrete slabs and the web plate are more vacant, the effective supporting area is lacked, and the bearing performance of the whole bridge floor is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a top chord is strengthened combination formula steel truss structure can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the upper chord reinforced combined steel truss structure comprises a concrete layer and a bridge floor, wherein a steel truss combination is arranged below the concrete layer, the steel truss combination comprises an upper steel truss chord, a lower steel truss chord, a steel truss web and steel skeleton columns, the steel skeleton columns are located at two ends of the upper steel truss chord and the lower steel truss chord and are welded, a plurality of groups of steel truss webs are arranged in a crossed mode, a cantilever beam supporting plate combination is fixedly arranged between the concrete layer and the upper steel truss chord, four groups of lightening holes are formed in the same plane inside the cantilever beam supporting plate combination, T-shaped vertical inserting ribs penetrate through the two groups of lightening holes in the middle, T-shaped oblique inserting ribs penetrate through the two groups of lightening holes in two sides, a connecting steel plate is arranged at the edge of the combination of the concrete layer and the cantilever beam supporting plate combination, a flange diagonal brace is welded between the connecting steel plate and the lower steel truss chord, the lower ends of the T-shaped vertical inserting ribs and the T-shaped oblique inserting ribs are provided with threaded portions, and the bottom of the T-shaped oblique inserting ribs is fixed on the flange diagonal brace through threaded portion fixing nuts, and the flange diagonal brace are in a vertical state.
Preferably, the upper end of the steel skeleton column supports a concrete layer, and the steel truss combination is located in the middle of the concrete layer.
Preferably, four groups of lightening holes are arranged on the same plane, and the lightening holes are uniformly arranged along the horizontal direction of the bridge deck at equal intervals.
Preferably, the lower end of the T-shaped vertical dowel bar is fixed in the upper chord of the steel truss through a threaded part screwing nut.
Preferably, the T-shaped parts at the upper ends of the T-shaped vertical joint bars and the T-shaped inclined joint bars are poured in the concrete layer.
Compared with the prior art, the utility model discloses following beneficial effect has: according to the upper chord reinforced combined type steel truss structure, a plurality of groups of lightening holes are formed in the supporting plate, so that the lightening effect is achieved, and the supporting load is lightened for the steel truss at the lower end; the T-shaped vertical joint bars are directly connected with the concrete layer and the steel truss, so that the effect of reinforcing connection is achieved; the flange diagonal brace plays a role in auxiliary support for the support plate in an empty state and the structure above the support plate, the support area is increased, the flange diagonal brace is intersected with the T-shaped diagonal insertion rib, the structural strength of a local area is enhanced, the support effect is further strengthened, and the connection effect between the upper end carrier and the steel truss is improved; whole structural design is simple, convenient operation, and the effect of use is better for traditional mode, and the part that does not involve in this device all is the same with prior art or can adopt prior art to realize.
Drawings
Fig. 1 is a schematic view of the overall structure of an upper chord reinforced combined steel truss structure of the present invention;
fig. 2 is the utility model discloses a combined steel truss structure cross-sectional view is strengthened to last quarter.
In the figure: 1. a concrete layer; 2. a bridge deck; 3. winding the steel truss; 4. a steel truss lower chord; 5. a steel truss web; 6. a steel skeleton column; 7. combining cantilever beam support plates; 8. lightening holes; 9. t-shaped vertical joint bars; 10. t-shaped oblique steel bars; 11. connecting steel plates; 12. a flange diagonal bracing; 13. a threaded portion.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-2, an upper chord reinforced combined steel truss structure comprises a concrete layer 1 and a bridge deck 2, a steel truss combination is arranged below the concrete layer 1, the steel truss combination comprises a steel truss upper chord 3, a steel truss lower chord 4, a steel truss web 5 and a steel skeleton column 6, the steel skeleton column 6 is positioned at two ends of the steel truss upper chord 3 and the steel truss lower chord 4 and welded, the steel truss web 5 is provided with a plurality of groups in a crossed manner, a cantilever beam support plate combination 7 is fixedly arranged between the concrete layer 1 and the steel truss upper chord 3, four groups of lightening holes 8 are arranged on the same plane inside the cantilever beam support plate combination 7, a T-shaped vertical inserted bar 9 penetrates through the middle two groups of lightening holes 8, T-shaped oblique inserted bars 10 penetrate through the two groups of lightening holes 8 at two sides, a connecting steel plate 11 is arranged at the edge of the concrete layer 1 and the cantilever beam support plate combination 7, a T-shaped oblique inserted bar 12 is welded between the connecting steel plate 11 and the steel truss lower chord 4, a T-shaped oblique inserted bar 9 and a T-shaped oblique inserted bar 10 are screwed at the bottom through a screw thread part 13 and fixed on the upper chord 12, and a nut 12 is in a state;
the upper end of the steel skeleton column 6 supports the concrete layer 1, and the steel truss combination is positioned in the middle of the concrete layer 1; four groups of lightening holes 8 are arranged on the same plane, the lightening holes 8 are uniformly arranged along the horizontal direction of the bridge deck 2 at equal intervals, and the T-shaped vertical joint bars 9 and the T-shaped inclined joint bars 10 are also uniformly arranged along the horizontal direction of the bridge deck 2 at equal intervals; the lower end of the T-shaped vertical dowel bar 9 is fixed in the steel truss upper chord 3 by screwing a nut through the threaded part 13; the T-shaped parts at the upper ends of the T-shaped vertical joint bars 9 and the T-shaped inclined joint bars 10 are poured in the concrete layer 1.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides an upper chord strengthens combination formula steel truss structure, includes concrete layer (1) and bridge floor (2), its characterized in that: the concrete layer is characterized in that a steel truss combination is arranged below the concrete layer (1), the steel truss combination comprises a steel truss upper chord (3), a steel truss lower chord (4), a steel truss web (5) and a steel rib column (6), the steel rib column (6) is located at two ends of the steel truss upper chord (3) and the steel truss lower chord (4) and welded, a plurality of groups are arranged on the steel truss web (5) in a crossed mode, a cantilever beam supporting plate combination (7) is fixedly arranged between the concrete layer (1) and the steel truss upper chord (3), four groups of lightening holes (8) are formed in the same plane inside the cantilever beam supporting plate combination (7), a T-shaped vertical inserting rib (9) penetrates through the two groups of lightening holes (8), T-shaped oblique inserting ribs (10) penetrate through the two groups of lightening holes (8), a connecting steel plate (11) is arranged at the edge positions of the concrete layer (1) and the cantilever beam supporting plate combination (7), a connecting steel plate (11) is arranged between the connecting steel truss steel plate (11) and the steel truss lower chord (4), T-shaped oblique inserting ribs (9) and T-shaped oblique inserting screw threads (13) are welded at the bottoms of the T-shaped oblique inserting ribs (13), and oblique inserting nuts (13) are welded at the bottoms of the T-shaped oblique inserting ribs (13).
2. The upper chord reinforced combined steel truss structure according to claim 1, wherein: the concrete layer (1) is supported at the upper end of the steel skeleton column (6), and the steel truss combination is located in the middle of the concrete layer (1).
3. The upper chord reinforced combined steel truss structure according to claim 1, wherein: four groups of lightening holes (8) are formed in the same plane, and the lightening holes (8) are uniformly arranged along the horizontal direction of the bridge floor (2) at equal intervals.
4. The upper chord reinforced combined steel truss structure according to claim 1, wherein: the lower end of the T-shaped vertical dowel bar (9) is fixed in the steel truss upper chord (3) through a screw thread part (13) screwing nut.
5. The upper chord reinforced composite steel truss structure of claim 1, wherein: the upper end T-shaped parts of the T-shaped vertical joint bars (9) and the T-shaped inclined joint bars (10) are poured and arranged in the concrete layer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221711702.7U CN217839670U (en) | 2022-07-05 | 2022-07-05 | Upper chord reinforced combined steel truss structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221711702.7U CN217839670U (en) | 2022-07-05 | 2022-07-05 | Upper chord reinforced combined steel truss structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217839670U true CN217839670U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221711702.7U Active CN217839670U (en) | 2022-07-05 | 2022-07-05 | Upper chord reinforced combined steel truss structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217839670U (en) |
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2022
- 2022-07-05 CN CN202221711702.7U patent/CN217839670U/en active Active
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