CN213173363U - Adjustable tensioning end base of small box girder sinking type - Google Patents
Adjustable tensioning end base of small box girder sinking type Download PDFInfo
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- CN213173363U CN213173363U CN202021650488.XU CN202021650488U CN213173363U CN 213173363 U CN213173363 U CN 213173363U CN 202021650488 U CN202021650488 U CN 202021650488U CN 213173363 U CN213173363 U CN 213173363U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 86
- 239000010959 steel Substances 0.000 claims abstract description 86
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- 238000005336 cracking Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 239000004576 sand Substances 0.000 description 5
- 239000011150 reinforced concrete Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 244000035744 Hura crepitans Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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Abstract
The utility model discloses an adjustable stretch-draw end base of little case roof beam formula of sinking, including chassis, first adjustment mechanism, skew wall formula steel groove, leveling piece, second adjustment mechanism, a plurality of fly leaf, the lower surface that first adjustment mechanism lower extreme passed the chassis just plays the supporting role. The utility model has the advantages of it is following and effect: a second adjusting mechanism for controlling the height and the vertical and horizontal gradient of the leveling block is arranged between the lower surface of the leveling block and the bottom frame, and the leveling block corresponds to the lower surface of the wedge-shaped block of the box girder, so that the accuracy control of the height and the gradient of the wedge-shaped block of the box girder can be improved; the positions of the inclined wall type steel groove and the movable plates can be exchanged, the whole body can be translated, and the length of the prefabricated box girder and the position of the wedge-shaped block of the accurate box girder can be adapted; meanwhile, the lower surface of the bottom frame is adjustable in height through the first adjusting mechanism, and the leveling block is separated from the wedge block of the precast box girder by adjusting the height of the bottom frame downwards, so that common quality problems such as cracking of a tensioning end of the precast box girder and the like are prevented.
Description
Technical Field
The utility model relates to a concrete engineering processing technology field, in particular to adjustable stretch-draw end base of little case roof beam formula of sinking.
Background
The prefabricated box girder is a girder body type frequently used in bridge engineering, and the general span is more than or equal to 20 and less than or equal to 40 meters. Due to the relation of the roadbed and the longitudinal slope, when the slope is greater than 2%, wedge blocks are required to be arranged at two ends of the beam bottom of the prefabricated box beam for leveling.
In the traditional integral reinforced concrete pedestal, the adjusting template of the wedge-shaped block corresponding to the box girder adopts sand filling to control the height, the gradient and the central position. In a traditional sectional type reinforced concrete pedestal, the precision of a wedge block is determined by adopting a filled and adjusted sand box pedestal through translation, the length of a box beam is prefabricated, a rubber block is placed at the bottom of a sand box in a cushioning mode, and the quality problem when the box beam is stretched is prevented by utilizing the flexible deformation of the rubber block.
In the conventional integral reinforced concrete pedestal and the sectional reinforced concrete pedestal, there are the following problems: (1) affecting the quality safety: at the sand filling in-process, slope elevation precision is difficult to control, and the construction is filtered loaded down with trivial details, causes the sky because of handling the mistake easily, and the displacement that produces when restricting prefabricated box girder stretch-draw easily causes quality safety problems such as box girder stretch-draw end fracture, roof beam body damage: (2) influence the production progress: the construction process is complicated, the construction efficiency is low, the construction precision is low, and the turnover rate of the pedestal is low; (3) influence on economy and environmental protection: due to the tightening of environmental protection policies, most sand farms are shut down, river sand resources are in short supply, the price is saved, the sand is not recyclable, and the construction cost is increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adjustable stretch-draw end base of little case roof beam formula of sinking has the quality common fault such as prevent that prefabricated case roof beam stretch-draw end fracture from, and can improve prefabricated case roof beam length, wedge height and slope accuracy control.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an adjustable tensioning end base of little case roof beam formula of sinking, includes the chassis, sets up on the chassis and be used for adjusting the first adjustment mechanism of chassis lower surface height, along the length direction sliding connection of chassis sloping wall formula steel groove on the chassis, set up the leveling piece in sloping wall formula steel groove, set up between the lower surface of leveling piece and chassis and be used for controlling the height of leveling piece and the second adjustment mechanism of slope with great ease, a plurality of settings just are located the fly leaf of sloping wall formula steel groove both sides at the chassis upper surface, the lower surface that first adjustment mechanism lower extreme passed the chassis just plays supporting role, and is a plurality of the fly leaf covers the scope that the chassis upper surface was not covered by sloping wall formula steel groove.
The utility model discloses a further set up to: the chassis includes bottom steel sheet, welding at the tip steel sheet at bottom steel sheet length direction both ends, two welding just main channel-section steel that are parallel to each other, a plurality of setting support channel-section steel between main tributary support channel-section steel lower surface and bottom steel sheet between the homonymy of two tip steel sheets, first adjustment mechanism includes that a plurality of welding are on a plurality of first adjustment nut of the upper surface of bottom steel sheet, a plurality of difference threaded connection and the first adjusting bolt of bottom steel sheet is passed to the lower extreme, skew wall formula steel bay, a plurality of fly leaf sliding connection are between two main channel-section steels.
The utility model discloses a further set up to: the utility model discloses a chassis, including chassis, tip steel sheet, bracket, upper surface, the upper surface of bracket support and tip steel sheet are provided with the bracket support on the tip steel sheet of one side wherein, the upper surface of bracket support is located the coplanar.
The utility model discloses a further set up to: the second adjusting mechanism comprises four second adjusting screws and four second adjusting nuts, the four second adjusting screws are welded to the lower surface of the leveling block and distributed in a rectangular mode, the four second adjusting nuts are respectively in threaded connection with the four second adjusting screws, and the lower surfaces of the second adjusting nuts are abutted to the bottom steel plate.
The utility model discloses a further set up to: and the lower surfaces of the movable plates are respectively provided with a reinforcing seat supported on the bottom steel plate.
The utility model discloses a further set up to: the movable plates are different in width along the sliding direction of the bottom frame.
To sum up, the utility model discloses following beneficial effect has:
1. a second adjusting mechanism for controlling the height and the vertical and horizontal gradient of the leveling block is arranged between the lower surface of the leveling block and the bottom frame, and the leveling block corresponds to the lower surface of the wedge-shaped block of the box girder, so that the accuracy control of the height and the gradient of the wedge-shaped block of the box girder can be improved; the positions of the inclined wall type steel groove and the movable plates can be exchanged, the whole body can be translated, and the length of the prefabricated box girder and the position of the wedge-shaped block of the accurate box girder can be adapted; meanwhile, the height of the lower surface of the bottom frame is adjustable through the first adjusting mechanism, and the leveling block is separated from the wedge block of the precast box girder by downward adjusting the height of the bottom frame, so that common quality problems such as cracking of a tensioning end of the precast box girder and the like are prevented;
2. the bottom steel plate of the underframe is welded with the first adjusting nuts, the first adjusting bolts are in threaded connection with the first adjusting nuts, the lower ends of the first adjusting bolts penetrate through the underframe and play a supporting role, and the height of the bottom steel plate can be adjusted by changing the distance of the first adjusting bolts penetrating through the bottom steel plate, so that the height of the underframe is adjusted, the leveling block is separated from the wedge block of the precast box girder, and common quality problems such as cracking of a tensioning end of the precast box girder and the like are prevented;
3. a bracket support is arranged on the end steel plate on one side of the underframe, the upper surface of the bracket support and the upper surface of the end steel plate are positioned on the same plane, and the bracket support and the pedestal can be connected by the movable steel plate;
4. the integral heights of the second adjusting screw rods and the second adjusting nuts are controlled by sequentially rotating the second adjusting nuts, so that the height and the longitudinal and transverse gradient of the leveling block are adjusted, and the accuracy control on the height and the gradient of the wedge block of the box girder can be improved;
5. the lower surfaces of the movable plates are provided with reinforcing seats supported on the bottom steel plate, so that the movable plates can be prevented from deforming in the use process;
6. the width of the movable plates along the sliding direction of the bottom frame is different, and the positions of the movable plates and the inclined wall type steel grooves are adjusted at the moment, so that the bottom frame is integrally translated, and the prefabricated box girders of different models can be conveniently adapted.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
fig. 3 is a structural explosion diagram of the middle inclined wall type steel groove and the leveling block of the utility model.
Reference numerals: 1. a chassis; 11. a bottom steel plate; 12. an end steel plate; 13. main channel steel; 14. supporting channel steel; 2. a first adjustment mechanism; 21. a first adjusting nut; 22. a first adjusting bolt; 3. a sloped-wall steel trough; 4. a leveling block; 5. a second adjustment mechanism; 51. a second adjusting screw; 52. a second adjusting nut; 6. a movable plate; 61. a reinforcement base; 7. and (4) supporting by using a bracket.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): a small box girder sinking type adjustable stretching end base is shown in figures 1 to 3 and comprises an underframe 1, a first adjusting mechanism 2 which is arranged on the underframe 1 and used for adjusting the height of the lower surface of the underframe 1, an inclined wall type steel groove 3 which is connected to the underframe 1 in a sliding mode along the length direction of the underframe 1, a leveling block 4 which is arranged in the inclined wall type steel groove 3, a second adjusting mechanism 5 which is arranged between the lower surface of the leveling block 4 and the underframe 1 and used for controlling the height and the vertical and horizontal gradient of the leveling block 4, and a plurality of movable plates 6 which are arranged on the upper surface of the underframe 1 and located on two sides of the inclined wall type steel groove 3.
As shown in fig. 1 and 2, the underframe 1 includes a bottom steel plate 11, end steel plates 12 welded at both ends of the bottom steel plate 11 in the length direction, two main channel steels 13 welded between the same sides of the two end steel plates 12 and parallel to each other, a plurality of support channel steels 14 welded between the lower surface of the main support channel steel 14 and the bottom steel plate 11, and three support channel steels 14 welded between each main channel steel 13 and the bottom steel plate 11. The inclined wall type steel groove 3 and the movable plates 6 are connected between the two main channel steel 13 in a sliding mode, and the inclined wall type steel groove 3 and the movable plates 6 just cover the upper surfaces of the two main channel steel 13.
As shown in fig. 1 and 2, the first adjusting mechanism 2 includes a plurality of first adjusting nuts 21 welded to the upper surface of the bottom steel plate 11, and a plurality of first adjusting bolts 22 screwed to the plurality of first adjusting nuts 21, respectively, and having lower ends penetrating through the bottom steel plate 11. Three first adjusting nuts 21 are welded to two sides of the bottom steel plate 11, and the lower ends of the first adjusting bolts 22 play a role in supporting the whole base.
As shown in fig. 1 and 3, the second adjusting mechanism 5 includes four second adjusting screws 51 welded to the lower surface of the leveling block 4 and distributed in a rectangular shape, and four second adjusting nuts 52 respectively screwed to the four second adjusting screws 51. The lower surface of the second adjustment nut 52 abuts against the bottom steel plate 11.
As shown in fig. 1 and 2, three movable plates 6 are provided, the three movable plates 6 have different widths along the sliding direction of the chassis 1, and the lower surfaces of the movable plates 6 are respectively welded with reinforcing seats 61 supported on the bottom steel plate 11.
As shown in fig. 1, a corbel support 7 is welded to an end steel plate 12 on one side of the underframe 1, and the upper surface of the corbel support 7 and the upper surface of the end steel plate 12 are located on the same plane.
The implementation effect is as follows: the second adjusting mechanism 5 for controlling the height and the vertical and horizontal gradient of the leveling block 4 is arranged between the lower surface of the leveling block 4 and the underframe 1, and the leveling block 4 corresponds to the lower surface of the wedge-shaped block of the box girder, and the plurality of second adjusting nuts 52 are sequentially rotated, so that the overall height of the plurality of second adjusting screws 51 and the second adjusting nuts 52 is controlled, the height and the vertical and horizontal gradient of the leveling block 4 are adjusted, and the accuracy control on the height and the gradient of the wedge-shaped block of the box girder can be improved. And the positions of the inclined wall type steel groove 3 and the plurality of movable plates 6 can be exchanged, the whole body can be translated, and the length of the prefabricated box girder and the position of the wedge-shaped block of the accurate box girder can be adapted. Meanwhile, in the first adjusting mechanism 2, the height of the bottom steel plate 11 can be adjusted by changing the distance that the first adjusting bolt 22 penetrates through the bottom steel plate 11, so that the height of the underframe 1 is adjusted, the leveling block 4 is separated from the wedge block of the prefabricated box girder, the common quality problems such as cracking of the tensioning end of the prefabricated box girder and the like are prevented, the leveling block 4 is separated from the wedge block of the prefabricated box girder by lowering the height of the underframe 1, and the common quality problems such as cracking of the tensioning end of the prefabricated box girder and the like are prevented.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides an adjustable stretch-draw end base of little case roof beam formula of sinking which characterized in that: including chassis (1), set up on chassis (1) and be used for adjusting chassis (1) lower surface height's first adjustment mechanism (2), along the length direction sliding connection inclined wall formula steel bay (3) on chassis (1) of chassis (1), set up leveling piece (4) in inclined wall formula steel bay (3), set up between the lower surface of leveling piece (4) and chassis (1) and be used for controlling second adjustment mechanism (5) of the height and the vertical and horizontal slope of leveling piece (4), a plurality of settings are at chassis (1) upper surface and lie in fly leaf (6) of inclined wall formula steel bay (3) both sides, the lower surface that chassis (1) was passed to first adjustment mechanism (2) lower extreme just plays supporting role, and is a plurality of fly leaf (6) cover the scope that chassis (1) upper surface was not covered by inclined wall formula steel bay (3).
2. The adjustable tensioning end base of a small box girder sinking type as claimed in claim 1, wherein: chassis (1) include bottom steel sheet (11), welding tip steel sheet (12) at bottom steel sheet (11) length direction both ends, two welding between the homonymy of two tip steel sheets (12) and main channel-section steel (13) that are parallel to each other, a plurality of support channel-section steel (14) of setting between main support channel-section steel (14) lower surface and bottom steel sheet (11), first adjustment mechanism (2) include first adjusting nut (21) of a plurality of welding at the upper surface of bottom steel sheet (11), a plurality of difference threaded connection on a plurality of first adjusting nut (21) and first adjusting bolt (22) that the lower extreme passed bottom steel sheet (11), sloping wall type steel trough (3), a plurality of fly leaf (6) sliding connection are between two main channel-section steel (13).
3. The adjustable tensioning end base of a small box girder sinking type as claimed in claim 2, wherein: the bracket is characterized in that a bracket support (7) is arranged on the end steel plate (12) on one side of the underframe (1), and the upper surface of the bracket support (7) and the upper surface of the end steel plate (12) are located on the same plane.
4. The adjustable tensioning end base of a small box girder sinking type as claimed in claim 2, wherein: the second adjusting mechanism (5) comprises four second adjusting screws (51) which are welded on the lower surface of the leveling block (4) and distributed in a rectangular shape and four second adjusting nuts (52) which are respectively in threaded connection with the four second adjusting screws (51), and the lower surface of each second adjusting nut (52) is abutted to the bottom steel plate (11).
5. The adjustable tensioning end base of a small box girder sinking type as claimed in claim 2, wherein: the lower surfaces of the movable plates (6) are respectively provided with a reinforcing seat (61) supported on the bottom steel plate (11).
6. The adjustable tensioning end base of a small box girder sinking type as claimed in claim 1, wherein: the movable plates (6) have different widths along the sliding direction of the bottom frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021650488.XU CN213173363U (en) | 2020-08-10 | 2020-08-10 | Adjustable tensioning end base of small box girder sinking type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021650488.XU CN213173363U (en) | 2020-08-10 | 2020-08-10 | Adjustable tensioning end base of small box girder sinking type |
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| CN213173363U true CN213173363U (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021650488.XU Active CN213173363U (en) | 2020-08-10 | 2020-08-10 | Adjustable tensioning end base of small box girder sinking type |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115122493A (en) * | 2022-07-15 | 2022-09-30 | 宁夏公路桥梁建设有限公司 | Support variable cross slope steel pedestal with adjustable beam slab bottom wedge-shaped block |
| CN115401786A (en) * | 2022-09-30 | 2022-11-29 | 中铁一局集团(广州)建设工程有限公司 | Construction method of universal pedestal for prefabricated box girder |
-
2020
- 2020-08-10 CN CN202021650488.XU patent/CN213173363U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115122493A (en) * | 2022-07-15 | 2022-09-30 | 宁夏公路桥梁建设有限公司 | Support variable cross slope steel pedestal with adjustable beam slab bottom wedge-shaped block |
| CN115122493B (en) * | 2022-07-15 | 2023-10-13 | 宁夏公路桥梁建设有限公司 | Support-adjustable transverse slope steel pedestal with adjustable wedge blocks at bottom of beam plate |
| CN115401786A (en) * | 2022-09-30 | 2022-11-29 | 中铁一局集团(广州)建设工程有限公司 | Construction method of universal pedestal for prefabricated box girder |
| CN115401786B (en) * | 2022-09-30 | 2024-08-20 | 中铁一局集团(广州)建设工程有限公司 | Construction method of universal pedestal of prefabricated box girder |
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