Steel truss bridge deck support structure

Abstract

The utility model relates to truss technical field, concretely relates to a steel truss bridge deck support structure, the steel truss bridge deck support structure includes a plurality of support gantry and connecting assembly, each support gantry includes two vertical parallelly arranged support column and the truss fixed between the top of two support columns, and the truss includes the upper chord beam fixed between the top of two support columns, the lower chord beam fixed between the upper portion of two support columns and the multiple web beams obliquely staggered fixed between the upper chord beam and the lower chord beam. The steel truss bridge deck support structure of the utility model constitutes the stable space frame through the support gantry of horizontal spacing and the connecting assembly of longitudinal, significantly promotes overall structural strength, stiffness and spatial stability, and the combination of the oblique staggered web beam design and the standardization component makes it better carrying capacity and facilitates construction installation, and the connecting assembly closely links each gantry, and the integrity is good, can effectively prevent relative displacement and deformation.

Description

Technical Field

[0001] This utility model relates to the field of truss technology, specifically to a steel truss bridge deck support structure. Background Technology

[0002] In large-scale bridge projects, steel truss bridge deck support structures are key components for bearing bridge deck loads. Traditional support structures are usually constructed using transverse truss units in conjunction with simple longitudinal connectors. This leads to longitudinal relative displacement and torsional deformation of adjacent truss units when subjected to wind loads, vehicle braking forces, or seismic forces, resulting in insufficient overall stiffness and stability. Summary of the Invention

[0003] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a steel truss bridge deck support structure.

[0004] The objective of this utility model is achieved through the following technical solution: a steel truss bridge deck support structure, comprising multiple horizontally parallel and spaced support gantry frames and a longitudinally fixed connecting assembly between the tops of the multiple gantry frames. Each support gantry frame includes two vertically parallel and spaced support columns and a truss fixed between the tops of the two support columns. Each truss includes an upper chord beam fixed between the tops of the two support columns, a lower chord beam fixed between the upper middle part of the two support columns, and multiple web beams inclined and staggered and fixed between the upper chord beam and the lower chord beam. The connecting assembly includes a first connecting beam longitudinally fixed between two adjacent upper chord beams, a second connecting beam longitudinally fixed between two adjacent lower chord beams, and a third connecting beam longitudinally fixed between two adjacent support columns.

[0005] Furthermore, a first box beam is horizontally welded to the inner top of each of the support columns, and at least one first mounting block is welded to the top and left and right sides of the first box beam, with each first mounting block having multiple first mounting holes.

[0006] Furthermore, a second box beam is horizontally welded to the inner side of the upper part of each of the support columns, and at least one second mounting block is welded to the bottom and left and right sides of the second box beam, with each second mounting block having multiple second mounting holes.

[0007] Furthermore, a third mounting block is welded to each of the left and right ends of the upper chord beam at the position corresponding to each of the first mounting blocks. Each third mounting block has multiple third mounting holes. First fixing blocks are provided on the front and rear sides of the first and third mounting blocks. The first fixing blocks have first fixing holes at the positions corresponding to each of the first and third mounting holes. The two ends of the upper chord beam are respectively screwed and fixed between the tops of the two support columns by multiple bolts passing through the first fixing holes and the corresponding first or third mounting holes in sequence.

[0008] Furthermore, a fourth mounting block is welded to each of the left and right ends of the lower chord beam at the position corresponding to each of the second mounting blocks. Each fourth mounting block has multiple fourth mounting holes. Second fixing blocks are provided on the front and rear sides of the second and fourth mounting blocks. The second fixing blocks have second fixing holes at the positions corresponding to each of the second and fourth mounting holes. The two ends of the lower chord beam are respectively screwed and fixed between the upper part of the two support columns by multiple bolts passing through the second fixing holes and the corresponding second or fourth mounting holes in sequence.

[0009] Furthermore, multiple fifth mounting blocks are vertically and equidistantly welded on the front and rear sides of the upper chord beam. Each fifth mounting block has multiple fifth mounting holes opened horizontally. The front and rear ends of the first connecting beam have sixth mounting holes corresponding to the positions of each fifth mounting hole. The two ends of the first connecting beam are respectively screwed and fixed between two adjacent upper chord beams by multiple bolts passing through the corresponding fifth mounting holes and sixth mounting holes in sequence.

[0010] Furthermore, multiple sixth mounting blocks are vertically and equidistantly welded on the front and rear sides of the lower chord beam. Each sixth mounting block has multiple seventh mounting holes opened laterally. The front and rear ends of the second connecting beam have eighth mounting holes corresponding to the positions of each seventh mounting hole. The two ends of the second connecting beam are respectively screwed and fixed between two adjacent lower chord beams by multiple bolts passing through the corresponding seventh and eighth mounting holes in sequence.

[0011] Furthermore, each of the support columns is welded with a base plate at its bottom, and a frame plate is welded to the lower middle outer wall of each support column. Both the base plate and the frame plate are vertically provided with multiple anchoring holes, and several studs are uniformly welded to the lower middle outer wall of the support column located between the base plate and the frame plate.

[0012] Furthermore, the inner walls of the upper and lower chord beams are provided with multiple stiffening ribs arranged vertically at equal intervals, and positioning holes are provided at the bottom of both the left and right ends of the upper and lower chord beams.

[0013] Furthermore, each of the aforementioned support columns is a box beam, and a grouting port is provided on the front side of the upper part of each support column.

[0014] The beneficial effects of this utility model are as follows: The steel truss bridge deck support structure of this utility model forms a stable spatial frame through the transversely spaced support gantry frames and longitudinal connecting components, which significantly improves the strength, rigidity and spatial stability of the overall structure; the inclined and staggered web beam design and the combination of standardized components give it good load-bearing capacity and facilitate construction and installation, with a high degree of prefabrication; the connecting components tightly connect each gantry frame, resulting in good integrity and effectively preventing relative displacement and deformation. Attached Figure Description

[0015] Figure 1This is a perspective view of the present invention.

[0016] Figure 2 This is a perspective view of the support column described in this utility model.

[0017] Figure 3 This is a perspective view of the gantry frame described in this utility model.

[0018] Figure 4 This is a perspective view of the truss described in this utility model.

[0019] Figure 5 This is a side view of the truss described in this utility model.

[0020] Figure 6 This is a front view of the first connecting beam and the second connecting beam of this utility model.

[0021] The attached figures are labeled as follows: 1. Supporting gantry frame; 2. Connecting component; 21. First connecting beam; 211. Sixth mounting hole; 22. Second connecting beam; 221. Eighth mounting hole; 23. Third connecting beam; 3. Support column; 311. First box beam; 312. First mounting block; 313. First mounting hole; 321. Second box beam; 322. Second mounting block; 323. Second mounting hole; 33. Base plate; 34. Frame plate; 35. Anchor hole; 36. Stud; 37. Grouting port; 4. Upper chord beam; 41. Third mounting block; 42. Third mounting hole; 43. First fixing block; 44. First fixing hole; 45. Fifth mounting block; 46. Fifth mounting hole; 47. Positioning hole; 5. Lower chord beam; 51. Fourth mounting block; 52. Fourth mounting hole; 53. Second fixing block; 54. Sixth mounting block; 55. Seventh mounting hole; 56. Web beam; 6. Truss; 7. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the following description is provided in conjunction with embodiments and appendices. Figure 1-6 The present invention will be further described below. The content mentioned in the embodiments is not intended to limit the present invention.

[0023] See Figure 1-6 A steel truss bridge deck support structure includes multiple horizontally parallel and spaced support gantry frames 1 and longitudinally fixed connecting components 2 between the tops of the multiple gantry frames. Each support gantry frame 1 includes two vertically parallel and spaced support columns 3 and a truss 7 fixed between the tops of the two support columns 3. Each truss 7 includes an upper chord beam 4 fixed between the tops of the two support columns 3, a lower chord beam 5 fixed between the upper middle parts of the two support columns 3, and multiple web beams 6 obliquely and alternately fixed between the upper chord beam 4 and the lower chord beam 5. The connecting components 2 include a first connecting beam 21 longitudinally fixed between two adjacent upper chord beams 4, a second connecting beam 22 longitudinally fixed between two adjacent lower chord beams 5, and a third connecting beam 23 longitudinally fixed between two adjacent support columns 3.

[0024] The steel truss bridge deck support structure of this utility model forms a stable spatial frame through the transversely spaced support gantry 1 and the longitudinal connecting components 2, which significantly improves the strength, rigidity and spatial stability of the overall structure. The design of the inclined staggered web beams 6 and the combination of standardized components give it good load-bearing capacity and facilitate construction and installation, with a high degree of prefabrication. The connecting components 2 tightly connect each gantry, resulting in good integrity and effectively preventing relative displacement and deformation.

[0025] In this embodiment, a first box beam 311 is horizontally welded to the inner top of each support column 3. At least one first mounting block 312 is welded to the top and left and right sides of the first box beam 311, and each first mounting block 312 has multiple first mounting holes 313. By setting multiple connecting structures on the top and left and right sides of the first box beam 311, the installation of the upper chord beam 4 is facilitated.

[0026] In this embodiment, a second box beam 321 is horizontally welded to the inner side of the upper part of each support column 3. At least one second mounting block 322 is welded to the bottom and left and right sides of the second box beam 321, and each second mounting block 322 has multiple second mounting holes 323. By setting multiple connecting structures at the bottom and left and right sides of the second box beam 321, the installation of the lower chord beam 5 is facilitated.

[0027] In this embodiment, a third mounting block 41 is welded to each of the left and right ends of the upper chord beam 4 at the position corresponding to each of the first mounting blocks 312. Each third mounting block 41 has multiple third mounting holes 42. First fixing blocks 43 are provided on the front and rear sides of the first mounting blocks 321 and the third mounting blocks 41. The first fixing blocks 43 have first fixing holes 44 at the positions corresponding to each of the first mounting holes 313 and the third mounting holes 42. The two ends of the upper chord beam 4 are respectively bolted to the top of the two support columns 3 by passing multiple bolts through the first fixing holes 44 and the corresponding first mounting holes 313 or third mounting holes 42. By setting multiple connection points, the load of the upper chord beam 4 can be effectively distributed and transmitted, avoiding excessive load at the connection points that could lead to breakage. Furthermore, the bolt connection allows for quick maintenance and has low production costs.

[0028] In this embodiment, a fourth mounting block 51 is welded to each of the left and right ends of the lower chord beam 5, corresponding to the position of each of the second mounting blocks 322. Each fourth mounting block 51 has multiple fourth mounting holes 52. Second fixing blocks 53 are provided on the front and rear sides of the second mounting blocks 322 and the fourth mounting blocks 51. The second fixing blocks 53 have second fixing holes 54 corresponding to the positions of each second mounting hole 323 and the fourth mounting hole 52. The two ends of the lower chord beam 5 are respectively bolted to the upper part of the two support columns 3 by passing multiple bolts through the second fixing holes 54 and the corresponding second mounting holes 323 or fourth mounting holes 52. By setting multiple connection points, the load of the lower chord beam 5 can be effectively distributed and transmitted, avoiding excessive load at the connection points that could lead to breakage. Moreover, the bolt connection allows for quick maintenance and has low production costs.

[0029] In this embodiment, multiple fifth mounting blocks 45 are vertically and equidistantly welded to the front and rear sides of the upper chord beam 4. Each fifth mounting block 45 has multiple fifth mounting holes 46 horizontally. The front and rear ends of the first connecting beam 21 have sixth mounting holes 211 corresponding to each fifth mounting hole 46. The two ends of the first connecting beam 21 are respectively bolted through the corresponding fifth mounting holes 46 and sixth mounting holes 211 and fixed to adjacent upper chord beams 4 by multiple bolts. By installing multiple first connecting beams 21 between adjacent upper chord beams 4, the stability and load-bearing capacity of the entire structure can be enhanced, and the bolted connection allows for fast assembly and convenient maintenance.

[0030] In this embodiment, multiple sixth mounting blocks 55 are vertically and equidistantly welded to the front and rear sides of the lower chord beam 5. Each sixth mounting block 55 has multiple seventh mounting holes 56 horizontally formed. The front and rear ends of the second connecting beam 22 have eighth mounting holes 221 corresponding to each of the seventh mounting holes 56. The two ends of the second connecting beam 22 are respectively bolted to the adjacent two lower chord beams 5 by multiple bolts passing through the corresponding seventh mounting holes 56 and eighth mounting holes 221. By installing multiple second connecting beams 22 between adjacent lower chord beams 5, the stability and load-bearing capacity of the entire structure can be enhanced, and the bolted connection allows for fast assembly and convenient maintenance.

[0031] In this embodiment, a base plate 33 is welded to the bottom of each support column 3, and a frame plate 34 is welded to the lower middle outer wall of each support column 3. Multiple anchoring holes 35 are vertically provided on both the base plate 33 and the frame plate 34. A number of studs 36 are uniformly welded to the lower middle outer wall of the support column 3, located between the base plate 33 and the frame plate 34. In this embodiment, the bottom of the frame plate 34 of the support column 3 is embedded in the foundation. By providing anchoring holes 35, anchor bolts can be used to firmly fix the support column 3 to the foundation, preventing it from tilting. Providing studs 36 to the outer wall of the portion of the support column 3 embedded in the foundation allows the bottom of the support column 3 to be tightly bonded to the concrete. This strengthens the anchoring strength between the bottom of the support column 3 and the foundation, and reduces local compressive stress through layered force transmission, significantly improving the load-bearing capacity, seismic stability, and spatial adaptability of the support column 3.

[0032] In this embodiment, the inner walls of the upper chord beam 4 and the lower chord beam 5 are each provided with multiple stiffening ribs (not shown in the figure) arranged vertically at equal intervals. Positioning holes 47 are provided at the bottom of both the left and right ends of the upper chord beam 4 and the lower chord beam 5. By providing stiffening ribs, the structural strength and load-bearing capacity of the upper chord beam 4 and the lower chord beam 5 can be enhanced. The positioning holes 47 facilitate the rapid assembly of the upper chord beam 4 and the lower chord beam 5 with the support column 3.

[0033] In this embodiment, each of the supporting columns 3 is a box beam, and a grouting port 37 is provided on the front side of the upper part of each supporting column 3. By providing the grouting port 37, it is convenient to fill the supporting column 3 with concrete, so that the supporting column 3 forms a structure in which the box steel beam wraps around the concrete column, and the load-bearing capacity and structural strength of the supporting column 3 are significantly enhanced.

[0034] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A steel truss bridge deck support structure, comprising a plurality of transversely parallel supporting gantry frames and a connecting assembly longitudinally fixed between the tops of the plurality of gantry frames, characterized in that: Each supporting gantry includes two vertically parallel supporting columns and a truss fixed between the tops of the two supporting columns. Each truss includes an upper chord beam fixed between the tops of the two supporting columns, a lower chord beam fixed between the upper middle parts of the two supporting columns, and multiple web beams fixed obliquely and alternately between the upper and lower chord beams. The connecting assembly includes a first connecting beam longitudinally fixed between two adjacent upper chord beams, a second connecting beam longitudinally fixed between two adjacent lower chord beams, and a third connecting beam longitudinally fixed between two adjacent supporting columns.

2. The steel truss bridge deck support structure according to claim 1, characterized in that: Each of the support columns has a first box beam welded laterally to its inner top. At least one first mounting block is welded to the top and both sides of the first box beam, and each first mounting block has multiple first mounting holes.

3. The steel truss bridge deck support structure according to claim 1, characterized in that: Each of the support columns has a second box beam welded laterally to the inner side of its upper part. At least one second mounting block is welded to the bottom and left and right sides of the second box beam, and each second mounting block has multiple second mounting holes.

4. A steel truss bridge deck support structure according to claim 2, characterized in that: The upper chord beam has a third mounting block welded to each of the first mounting blocks at its left and right ends. Each third mounting block has multiple third mounting holes. The first mounting blocks and the third mounting blocks have first fixing blocks on their front and rear sides. The first fixing blocks have first fixing holes at each of the first mounting holes and third mounting holes. The two ends of the upper chord beam are respectively screwed and fixed between the tops of the two support columns by multiple bolts passing through the first fixing holes and the corresponding first mounting holes or third mounting holes.

5. A steel truss bridge deck support structure according to claim 3, characterized in that: The lower chord beam has a fourth mounting block welded to each of the second mounting blocks at its left and right ends. Each fourth mounting block has multiple fourth mounting holes. The second mounting blocks and the fourth mounting blocks have second fixing blocks on their front and rear sides. The second fixing blocks have second fixing holes at each of the second mounting holes and the fourth mounting holes. The two ends of the lower chord beam are respectively fixed to the upper part of the two support columns by multiple bolts passing through the second fixing holes and the corresponding second mounting holes or fourth mounting holes.

6. A steel truss bridge deck support structure according to claim 1, characterized in that: Multiple fifth mounting blocks are vertically and equidistantly welded on the front and rear sides of the upper chord beam. Each fifth mounting block has multiple fifth mounting holes opened horizontally. The front and rear ends of the first connecting beam have sixth mounting holes corresponding to the positions of each fifth mounting hole. The two ends of the first connecting beam are respectively screwed and fixed between two adjacent upper chord beams by multiple bolts passing through the corresponding fifth mounting holes and sixth mounting holes in sequence.

7. A steel truss bridge deck support structure according to claim 1, characterized in that: The lower chord beam has multiple sixth mounting blocks welded vertically at equal intervals on both its front and rear sides. Each sixth mounting block has multiple seventh mounting holes opened horizontally. The second connecting beam has eighth mounting holes at both its front and rear ends corresponding to the positions of each seventh mounting hole. The two ends of the second connecting beam are respectively screwed and fixed between two adjacent lower chord beams by multiple bolts passing through the corresponding seventh and eighth mounting holes in sequence.

8. A steel truss bridge deck support structure according to claim 1, characterized in that: Each of the support columns is welded to a base plate at its bottom, and a frame plate is welded to the lower middle outer wall of each support column. Both the base plate and the frame plate are vertically provided with multiple anchor holes, and several studs are uniformly welded to the lower middle outer wall of the support column between the base plate and the frame plate.

9. A steel truss bridge deck support structure according to claim 1, characterized in that: The inner walls of both the upper and lower chord beams are vertically and equidistantly provided with multiple stiffening ribs, and positioning holes are provided at the bottom of both the left and right ends of the upper and lower chord beams.

10. A steel truss bridge deck support structure according to claim 1, characterized in that: Each of the aforementioned support columns is a box girder, and a grouting port is provided on the front side of the upper part of each support column.

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