CN211713649U - Bridge height-variable stiffening section structure containing grid plate structure - Google Patents
Bridge height-variable stiffening section structure containing grid plate structure Download PDFInfo
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- CN211713649U CN211713649U CN201921809467.5U CN201921809467U CN211713649U CN 211713649 U CN211713649 U CN 211713649U CN 201921809467 U CN201921809467 U CN 201921809467U CN 211713649 U CN211713649 U CN 211713649U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 14
- 239000004567 concrete Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000035515 penetration Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
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Abstract
The utility model discloses a bridge that contains grid plate structure becomes high stiffening section structure, it is equipped with the bottom plate to become high stiffening section, bottom plate top distributes and has the grid plate, it is provided with bearing plate and cross slab to become high stiffening section, in becoming high stiffening section, it has if vertical stiffening rib to distribute along the length trend of high stiffening section, vertical stiffening rib is perpendicular to bottom plate and bearing plate distribution respectively in the space, the last reason of vertical stiffening rib upwards supports the horizontal grid of grid plate, vertical stiffening rib department equidistant distribution has vertical stiffening rib, vertical stiffening rib is perpendicular vertical stiffening rib and bottom plate distribution respectively in the space, vertical stiffening rib's upper end upwards supports horizontal grid. The grid plate is connected with the longitudinal stiffening ribs, the bearing plate and the transverse partition plate, so that the axial force transmitted from the standard section of the steel beam is more uniformly distributed on the height of the stiffening ribs, and the force transmission of the bearing plate and the steel compartment is facilitated.
Description
Technical Field
The utility model belongs to the technical field of bridge engineering's technique and specifically relates to a bridge that contains grid plate structure becomes height stiffening section structure, in particular to its mechanical connection structure.
Background
The large-span self-anchored suspension bridge mostly adopts a mixed beam structure of a main-span steel beam and a side-span concrete beam. The structural form can remarkably reduce the weight of the main span girder and solve the problem of side span weight, and has the advantages of large spanning capability, good stress performance and excellent economy. Similar to a hybrid beam cable-stayed bridge, a self-anchored suspension bridge of the hybrid beam needs to be provided with a steel-concrete combined section near a tower to connect a steel beam and a concrete beam. Rigidity cannot be smoothly transited due to sudden change of section size in the steel-concrete combined section, and internal force transmission is not smooth. The steel beam transition section can be adopted for preparing stiffening to avoid local stress concentration caused by sudden change of the section. The girder steel changeover portion's the height of putting more energy into is too big, need set up the side direction support for preventing the unstability. The lateral support welding amount of the stiffening section is large, the operation is difficult, a single welding line is too short, and the welding quality is not easy to control. Therefore, a new structure of a high-height stiffening section of a steel-concrete combined bridge steel-concrete combined section and a construction method thereof need to be provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bridge that contains grid plate structure becomes high section structure of putting more energy into to realize at the smooth-going transition of reinforced concrete joint section rigidity, the smooth and easy transmission of internal force reduces the welding operation degree of difficulty simultaneously, improves the high section construction quality of putting more energy into. Overcomes the defects in the prior art.
In order to realize the purpose, the technical scheme of the utility model is that: a bridge height-variable stiffening section structure containing a grid plate structure is provided, wherein the height-variable stiffening section is provided with a bottom plate, a grid plate is distributed above the bottom plate and consists of transverse grid bars and longitudinal grid bars which are distributed in a cross way, a bearing plate is arranged at one end of the heightening stiffening section, a transverse clapboard is arranged at the other end of the heightening stiffening section, the transverse clapboard and the bearing plate are distributed in parallel in space, this bottom plate of bearing plate perpendicular to below, in the section of heightening, it has if a vertical stiffening rib to distribute along the length trend of heightening stiffening rib, vertical stiffening rib is perpendicular to bottom plate and bearing plate distribution respectively in the space, the last reason of vertical stiffening rib upwards supports the horizontal bars of grid board, vertical stiffening rib department equidistant distribution has vertical stiffening rib, vertical stiffening rib is perpendicular vertical stiffening rib and bottom plate distribution respectively in the space, the upper end of vertical stiffening rib upwards supports horizontal bars.
The utility model discloses a bridge that contains grid plate structure becomes height stiffening section structure, the technological effect as follows: 1. the utility model discloses a grid board structure is as the horizontal support of vertical stiffening rib, and the grid board adopts the mill to customize, and size reasonable in design, construction location are accurate. 2. The utility model discloses a grid board replaces traditional horizontal support element, reduces to have welded and has fallen to weld, and is easy and simple to handle, is favorable to improving dare welding quality simultaneously, improves welding seam fatigue resistance ability. 3. The utility model discloses the grid board links to each other with vertical stiffening rib, bearing plate, cross slab for the axle power that the girder steel standard section transmitted distributes more evenly on stiffening rib height, is favorable to the biography power of bearing plate and steel compartment.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
The utility model discloses a bridge that contains grid plate structure becomes high section structure of putting more energy into, it is different from prior art and lies in: the height-variable stiffening section 1 is provided with a bottom plate 2, grid plates 3 are distributed above the bottom plate 2, the grid plates 3 are composed of transverse grid bars 5 and longitudinal grid bars 6 which are distributed in a cross way, one end of the height-variable stiffening section 1 is provided with a pressure bearing plate 7, the other end of the height-variable stiffening section 1 is provided with a transverse partition plate 8, the transverse partition plate 8 and the pressure bearing plate 7 are distributed in parallel in the space, the pressure bearing plate 7 is perpendicular to the bottom plate 2 below, a plurality of longitudinal stiffening ribs 9 are distributed along the length direction of the height-variable stiffening section 1 in the height-variable stiffening section 1, the longitudinal stiffening ribs 9 are respectively distributed in the space perpendicular to the bottom plate 2 and the pressure bearing plate 6, the upper edges of the longitudinal stiffening ribs 9 upwards abut against the transverse grid bars 5 of the grid plates 3, vertical stiffening ribs 10 are distributed at equal intervals at the positions of the longitudinal stiffening ribs 9, and the vertical stiffening ribs 10 are respectively, the upper ends of the vertical stiffeners 10 abut up against the transverse grid 5.
In specific implementation, the longitudinal stiffening ribs 9 are height-variable ribs, and the upper edges of the longitudinal stiffening ribs 9 form an inclined slope surface with a slope proportion of 1/5-1/8.
In the specific implementation, the height of the vertical stiffening rib 10 is consistent with the height of the longitudinal stiffening rib 9 at the joint of the two.
In specific implementation, the grid plates 3 are steel plates of equal thickness Q345, the thickness of the grid plates 3 is 12-22mm, and the thickness of the grid plates 3 is smaller than or equal to that of the longitudinal stiffening ribs 9.
In specific implementation, the height of the vertical stiffening ribs 10 is twice of the thickness of the grid plate 3 than that of the longitudinal stiffening ribs 9, the thickness of the grid plate 3 is more than or equal to 8mm,
in a specific implementation, the width and thickness of the grid plate 3 are 6mm to 12 mm.
In specific implementation, the grid plate 3 is surrounded by the transverse grid bars 5 and the longitudinal grid bars 6 to form a plurality of grid holes 11, and the grid holes 11 are rectangular holes with chamfers.
In specific implementation, the side length of the grid hole 11 is more than or equal to 350mm, and the radius of the chamfer arc is more than or equal to 100 mm.
In specific implementation, the end part of the variable-height stiffening section 1 is connected with the equal-height stiffening section, the widths of the transverse grid bars 5 and the longitudinal grid bars 6 at the connection part gradually change, the slope proportion of the grid plates 3 at the connection part is 1/12-1/20, and the widths of the transverse grid bars 5 and the longitudinal grid bars 6 are more than or equal to 20 mm.
The specific implementation is that the construction method of the high stiffening section structure comprises the following steps: the construction method comprises the following steps:
a. positioning a longitudinal stiffening rib on the bottom plate, and after the positioning is finished, welding the longitudinal stiffening rib with the bottom plate, the diaphragm plate and the pressure-bearing plate respectively according to double-sided full penetration welding;
b. positioning the vertical stiffening ribs on the longitudinal stiffening ribs at equal intervals, and welding the vertical stiffening ribs and the longitudinal stiffening ribs according to partial penetration welding seams or fillet welding seams after the positioning is finished;
c. temporarily supporting the grating plate on the vertical stiffening ribs, and checking the position and the size;
d. and performing girth welding on the grid plate, the longitudinal stiffening rib, the pressure-bearing plate and the transverse partition plate, wherein the grid plate is welded with the longitudinal stiffening rib and the pressure-bearing plate according to penetration welding seams, and the grid plate is welded with the transverse partition plate according to fillet welding seams.
In the specific implementation, the height-variable stiffening sections 1 can be distributed in an up-and-down symmetrical manner, so that the bottom plate becomes a top plate, and the height-variable stiffening sections 1 which are distributed in an up-and-down symmetrical manner are connected up and down through the diaphragm plate.
The foregoing is a more detailed description of the invention, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described above. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (9)
1. The utility model provides a bridge that contains grid plate structure becomes high section structure of putting more energy into which characterized in that: the height-variable stiffening section (1) is provided with a bottom plate (2), grid plates (3) are distributed above the bottom plate (2), the grid plates (3) are composed of transverse grid bars (5) and longitudinal grid bars (6) which are distributed in a cross manner, one end of the height-variable stiffening section (1) is provided with a pressure bearing plate (7), the other end of the height-variable stiffening section (1) is provided with a transverse partition plate (8), the transverse partition plate (8) and the pressure bearing plate (7) are distributed in parallel in space, the pressure bearing plate (7) is perpendicular to the bottom plate (2) below, in the height-variable stiffening section (1), a plurality of longitudinal stiffening ribs (9) are distributed along the length direction of the height-variable stiffening section (1), the longitudinal stiffening ribs (9) are respectively perpendicular to the bottom plate (2) and the pressure bearing plate in space, the upper edges of the longitudinal stiffening ribs (9) upwards abut against the transverse grid bars (5) of the grid plates (3), and the longitudinal stiffening ribs (9) are distributed at equal intervals, the vertical stiffening ribs (10) are respectively vertical to the longitudinal stiffening ribs (9) and the bottom plate (2) in the space and are distributed, and the upper ends of the vertical stiffening ribs (10) upwards abut against the transverse grid bars (5).
2. The structure of a bridge height-variable stiffening section containing a grid plate structure as claimed in claim 1, wherein: the longitudinal stiffening ribs (9) are height-variable ribs, the upper edges of the longitudinal stiffening ribs (9) form an inclined slope surface, and the slope proportion is 1/5-1/8.
3. The structure of a bridge height-variable stiffening section containing a grid plate structure as claimed in claim 1, wherein: the height of the vertical stiffening rib (10) is correspondingly consistent with the height of the longitudinal stiffening rib (9) at the joint of the vertical stiffening rib and the vertical stiffening rib.
4. The structure of a bridge height-variable stiffening section containing a grid plate structure as claimed in claim 1, wherein: the grating plates (3) are Q345 steel plates with equal thickness, the thickness of the grating plates (3) is 12-22mm, and the thickness of the grating plates (3) is smaller than or equal to that of the longitudinal stiffening ribs (9).
5. The structure of a bridge height-variable stiffening section containing a grid plate structure as claimed in claim 1, wherein: the height of the vertical stiffening ribs (10) is one time of the thickness of the grid plate (3) lower than that of the longitudinal stiffening ribs (9), and the thickness of the grid plate (3) is more than or equal to 8 mm.
6. The structure of a bridge height-variable stiffening section containing a grid plate structure as claimed in claim 1, wherein: the width and the thickness of the grating plate (3) are 6mm-12 mm.
7. The structure of a bridge height-variable stiffening section containing a grid plate structure as claimed in claim 1, wherein: the grating plates (3) are surrounded by transverse grating strips (5) and longitudinal grating strips (6) to form a plurality of grating holes (11), and the grating holes (11) are rectangular holes with chamfers.
8. The structure of a bridge stiffening section with a grid plate structure of claim 7, wherein: the side length of the grid hole (11) is more than or equal to 350mm, and the radius of the chamfer arc is more than or equal to 100 mm.
9. The structure of a bridge height-variable stiffening section containing a grid plate structure as claimed in claim 1, wherein: the end part of the height-variable stiffening section (1) is connected with the equal-height stiffening section, the width of the transverse grid bars (5) and the width of the longitudinal grid bars (6) at the connection part are gradually changed, the slope proportion of the grid plates (3) at the connection part is 1/12-1/20, and the width of the transverse grid bars (5) and the width of the longitudinal grid bars (6) are more than or equal to 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921809467.5U CN211713649U (en) | 2019-10-25 | 2019-10-25 | Bridge height-variable stiffening section structure containing grid plate structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921809467.5U CN211713649U (en) | 2019-10-25 | 2019-10-25 | Bridge height-variable stiffening section structure containing grid plate structure |
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| CN211713649U true CN211713649U (en) | 2020-10-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792027A (en) * | 2019-10-25 | 2020-02-14 | 上海市政工程设计研究总院（集团）有限公司 | A bridge variable-height stiffening section structure with grid plate structure and construction method |
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2019
- 2019-10-25 CN CN201921809467.5U patent/CN211713649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110792027A (en) * | 2019-10-25 | 2020-02-14 | 上海市政工程设计研究总院（集团）有限公司 | A bridge variable-height stiffening section structure with grid plate structure and construction method |
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