CN213681769U - Mounting structure of steel arch bridge of upper-span channel - Google Patents
Mounting structure of steel arch bridge of upper-span channel Download PDFInfo
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- CN213681769U CN213681769U CN202022455112.XU CN202022455112U CN213681769U CN 213681769 U CN213681769 U CN 213681769U CN 202022455112 U CN202022455112 U CN 202022455112U CN 213681769 U CN213681769 U CN 213681769U
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Abstract
The application relates to the field of bridge engineering, in particular to an installation structure of an up-span channel steel arch bridge, which can reduce the installation difficulty and the pushing construction difficulty of a box girder rib plate; the steel pipe pile comprises a steel pipe pile, a steel box girder segment, a connecting guide beam, a fastening anchor bar and a jacking cushion block, a pile side hoop is sleeved outside the steel pipe pile, a hoop fastening bolt is arranged on the pile side hoop and firmly connected with the pile side hoop and the steel pipe pile, an inter-pile tie rod is arranged on the pile side hoop, adjacent inter-pile tie rods are connected through a tie rod connector, a stress sensor is arranged on the fastening anchor bar, a pile top supporting plate is laid on the top of the steel pipe pile, a walking jack and a back pressure baffle are arranged on the pile top supporting plate, the walking jack is connected with a jack sliding groove through a jack connecting tenon, the steel box girder segment is hung on the upper portion of the walking jack, the jacking end plate is provided with a jacking guide groove deviating from the side of the steel box girder segment, the jacking cushion block is arranged in the jacking guide groove and connected with a jacking end plate, and the back pressure baffle plate is provided with a horizontal pushing jack facing.
Description
Technical Field
The application relates to the field of bridge engineering, in particular to an installation structure of an up-span channel steel arch bridge.
Background
The construction scale of the large-span municipal steel arch bridge is gradually increased, and a great deal of convenience is brought to people. However, with the increase of the span of the municipal steel arch bridge, the overall quality of the steel arch bridge is affected by the bridge design, construction, manufacturing and other processes, and under the condition, the control and management of the steel arch bridge construction process are enhanced, which is particularly important.
The steel structure arch bridge comprises a plurality of steel bridge components which are manufactured in sections, the steel bridge components are integrally pre-assembled in a factory according to the assembly state on site, the steel bridge components are assembled according to the assembly area on the river bank on site, the assembly area comprises two steel trusses and two bridge deck plates, the two steel trusses are respectively floated and dragged and hung on a pier, one assembled bridge deck plate is directly hung between the two steel trusses through a first crawler crane, the other bridge deck plate is transported to the opposite bank through a barge, then a second crawler crane is hung between the two steel trusses, the bridge deck plate sections and the steel trusses are assembled and welded, and the assembly of the whole steel bridge is completed. Although this technique can reduce the influence of construction to navigation to a certain extent, when the stability of construction structure is relatively poor, when rivers are unstable, the construction is difficult to implement, and the connection problem between the festival is difficult to solve to this technique moreover.
In view of this, in order to improve the construction quality and efficiency of installing a large-span steel arch bridge, the invention of an up-span channel steel arch bridge installation structure which can improve the construction quality and reduce the pushing construction difficulty is urgently needed.
SUMMERY OF THE UTILITY MODEL
Based on this, this application provides one kind not only can reduce the installation degree of difficulty of case roof beam floor, can reduce the last channel steel arch bridge mounting structure of striding of pushing away the construction degree of difficulty moreover.
The application provides an installation structure of an upper-crossing channel steel arch bridge, which comprises a steel pipe pile, a steel box girder segment, a connecting guide beam, a fastening anchor bar and a jacking cushion block, wherein a pile side hoop is sleeved outside the steel pipe pile, a hoop fastening bolt is arranged on the pile side hoop and firmly connects the pile side hoop and the steel pipe pile, an inter-pile tie bar is arranged on the pile side hoop, adjacent inter-pile tie bars are connected through a tie bar connector, a first connecting end plate is arranged at the joint of the steel box girder segment and the connecting guide beam, a second connecting end plate is arranged at the joint of the connecting guide beam and the steel box girder segment, the first connecting end plate is connected with the second connecting end plate through an end plate fastening bolt, a guide beam fastening groove is arranged at one end of the connecting guide beam, which is far away from the second connecting end plate, a stress sensor is arranged on the fastening anchor bar, a pile top supporting plate is laid at the top of the steel pipe pile, a crawler jack and a back pressure baffle plate are arranged on, be provided with the jack spout on the pile bolck fagging to being equipped with the roof pressure supporter along jack spout length direction, walking jack passes through the jack with the jack spout and is connected the falcon, steel box girder segment section hangs and locates walking jack's upper portion to deviate from at steel box girder segment section and connect the nose girder end and be provided with and prop the pressure end plate, prop and be equipped with the end plate locating bolt on the pressure end plate and with its firm in connection with steel box girder segment section, prop and press the end plate and deviate from steel box girder segment section side and be provided with the roof pressure guide slot, the roof pressure cushion is arranged in the roof pressure guide slot and is connected with the pressure end plate, back pressure baffle sets up the cross thrust jack towards propping pressure end plate side, and the output shaft of cross thrust jack is connected with the roof pressure cushion.
Preferably, the pile side hoop comprises two hoop plates with the same shape, the two opposite hoop plates are firmly connected through hoop fastening bolts, and the inter-pile tie rod is welded on the outer side wall of the hoop plates.
Preferably, the tie rod connecting body comprises a first tie rod connecting plate, a second tie rod connecting plate and tie rod position adjusting screw rods, the first tie rod connecting plate and the second tie rod connecting plate are respectively and vertically welded with tie rods between opposite piles, the first tie rod connecting plate is welded with the two tie rod position adjusting screw rods, the tie rod position adjusting screw rods penetrate through the second tie rod connecting plate and are connected with the second tie rod connecting plate through nuts, two rows of jack sliding grooves and a slot hole for the support falcon plate to penetrate through are formed in the pile top supporting plate, and the cross section of each jack sliding groove is in an inverted T shape.
Preferably, the roof pressure supporter includes supporting clamp plate and support falcon, and supporting clamp plate welds even with supporting falcon is perpendicular, and supports falcon top and pass the pile top fagging, pile top fagging fixed surface installs accuse position screw rod, and controls position screw rod bottom and pass the reservation hole of supporting clamp plate, accuse position screw rod is gone up the spiral shell and has been installed accuse position bolt, prescribes a limit to the elevation of supporting clamp plate and support falcon through accuse position bolt.
Preferably, the cross section of the guide beam fastening groove is in a U shape, the guide beam fastening groove is sleeved on the end part of the connecting guide beam, the outer side walls of the guide beam fastening groove and the steel box girder segment are respectively provided with a connecting anchor plate, the connecting anchor plates are fixedly welded with the guide beam fastening groove and the steel box girder segment, and the two ends of the fastening anchor bars are respectively connected with the connecting anchor plates on the outer side walls of the guide beam fastening groove and the steel box girder segment.
Preferably, the cross section of the connecting falcon of the jack is in an inverted T shape and is vertically welded and fixed with the bottom surface of the walking jack, the walking jack adopts a hydraulic jack, and a supporting falcon plate provides a transverse pushing counter force for the walking jack.
Preferably, the cross section of the top pressure guide groove is U-shaped, the top pressure guide groove and the top pressure cushion block are formed by rolling profile steel, and the top pressure cushion blocks with different lengths are adopted according to the stroke control requirement of the horizontal pushing jack.
Compared with the prior art, the utility model has the following characteristics and beneficial effect:
(1) the utility model arranges the guide beam fastening groove at the cantilever end of the connecting guide beam, and can connect the connecting guide beam and the steel box girder segment into a whole by the fastening anchor bar, thereby improving the stress performance of the connecting guide beam; and simultaneously, the utility model discloses set up stress transducer on the fastening anchor bar, but the atress condition of real time monitoring connection nose girder promotes on-the-spot safety monitoring's the degree of accuracy.
(2) The utility model discloses accessible tie rod connector and stake side staple bolt become one whole with adjacent steel-pipe pile connection, and the field control is convenient.
(3) The utility model is provided with the jack sliding groove on the pile top supporting plate, and the advancing direction of the walking jack can be controlled by connecting the jacks with the falcon; and simultaneously, the utility model discloses accessible walking jack and horizontal jack exert jacking force to the steel box girder segment section in step, have reduced the degree of difficulty that the construction was pushed away to the scene.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in related arts, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the installation structure of the steel arch bridge of the present invention;
FIG. 2 is a schematic view of a construction structure for driving the steel pipe pile in FIG. 1;
FIG. 3 is a schematic view of the connection structure of the steel pipe pile and the pile side anchor ear in FIG. 2;
fig. 4 is the schematic view of the connection structure of the steel box girder segment and the connecting guide beam of the present invention.
In the figure: 1-steel pipe pile; 2-side anchor ear of pile; 3-anchor ear fastening bolt; 4-inter-pile tie rods; 5-tie bar connection; 6-tie rod positioning screw rod; 7-pile top bracing plate; 8-position control screw; 9-supporting the press plate; 10-a position control bolt; 11-supporting falcon panels; 12-steel box girder segment; 13-connecting anchor plates; 14-connecting a guide beam; 15-a first connection end plate; 16-a second connection end plate; 17-guide beam fastening slot; 18-end plate fastening bolts; 19-fastening anchor bars; 20-a stress sensor; 21-walking jack; 22-jack runner; 23-jacks are connected with falcon; 24-bracing and pressing end plates; 25-end plate positioning bolt; 26-jacking cushion blocks; 27-jacking and pressing guide groove; 28-back pressure baffle; 29-transversely pushing the jack; 30-hoop plate; 31-a first tie bar link plate; 32-a second tie bar link plate; 33-pressing the support body.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. All other examples, which can be obtained by a person skilled in the art without making any inventive step based on the examples in this application, are within the scope of protection of this application.
It should be understood by those skilled in the art that technical or scientific terms used in the claims and the specification should have the ordinary meaning as understood by those having ordinary skill in the art to which this application belongs. "connected" or "coupled" and like terms are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect; the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to an orientation or positional relationship as shown in the drawings, which are used for convenience in describing the invention and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, the above-described terms are not to be construed as limiting the invention.
Referring to fig. 1 to 4, in the embodiment of the present application, there is provided an upper-channel steel arch bridge installation structure, including a steel pipe pile 1, a steel box girder segment 12, a connecting guide girder 14, a fastening anchor bar 19 and a jacking cushion block 26, a pile-side hoop 2 is sleeved outside the steel pipe pile 1, a hoop fastening bolt 3 is provided on the pile-side hoop 2 to fasten the pile-side hoop 2 to the steel pipe pile 1, an inter-pile tie bar 4 is provided on the pile-side hoop 2, and adjacent inter-pile tie bars 4 are connected by a tie bar connector 5, a first connecting end plate 15 is provided at a joint of the steel box girder segment 12 and the connecting guide girder 14, a second connecting end plate 16 is provided at a joint end of the connecting guide girder 14 and the steel box girder segment 12, the first connecting end plate 15 and the second connecting end plate 16 are connected by an end plate fastening bolt 18, a guide girder fastening groove 17 is provided at an end of the connecting guide girder 14 far from the second connecting end plate 16, a stress sensor 20 is provided on the fastening anchor bar 19, the top of the steel pipe pile 1 is laid with a pile top supporting plate 7, the pile top supporting plate 7 is provided with a walking jack 21 and a back pressure baffle 28, the pile top supporting plate 7 is provided with a jack chute 22, a jacking support body 33 is arranged along the length direction of the jack chute 22, the walking jack 21 is connected with the jack chute 22 through a jack connecting tenon 23, the steel box girder segment 12 is hung on the upper part of the walking jack 21, and the end of the steel box girder segment 12 departing from the connecting guide beam 14 is provided with a supporting end plate 24, the supporting end plate 24 is provided with an end plate positioning bolt 25 to firmly connect the supporting end plate with the steel box girder segment 12, the side of the supporting end plate 24 departing from the steel box girder segment 12 is provided with a top pressure guide groove 27, a top pressure cushion block 26 is arranged in the top pressure guide groove 27 and connected with the supporting end plate 24, the back pressure baffle 28 is provided with a transverse pushing jack 29 facing the side of the supporting end plate 24, and the output shaft of the transverse pushing jack 53 is connected with the top pressure cushion block 26.
The steel pipe pile 1 adopts a steel pipe pile with the outer diameter of 500mm and the wall thickness of 10mm, and the length of each section is 6 m.
The pile side hoop 2 comprises two hoop plates 30 with the same shape, the thickness of each hoop plate 30 is 10mm and the width of each hoop plate 30 is 10cm, the opposite hoop plates 30 are firmly connected through hoop fastening bolts 3, pile tie bars 4 are welded on the outer side walls of the hoop plates 30, the pile tie bars 4 are formed by rolling steel pipes with the diameter of 300mm, and the adjacent pile tie bars 4 are connected through tie bar connectors 5. The anchor ear fastening bolt 3 is a high-strength bolt with the diameter of 30mm, and the inter-pile tie rod 4 is made of a steel pipe with the diameter of 100 mm.
The tie rod connecting body 5 comprises a first tie rod connecting plate 31, a second tie rod connecting plate 32 and tie rod position adjusting screw rods 6, the first tie rod connecting plate 31 and the second tie rod connecting plate 32 are formed by rolling steel plates with the thickness of 10mm and are respectively and vertically welded with the tie rods 4 between the opposite piles, the first tie rod connecting plate 31 is welded with the two tie rod position adjusting screw rods 6, the second tie rod connecting plate 32 is provided with holes for the tie rod position adjusting screw rods 6 to penetrate through, the tie rod position adjusting screw rods 6 are formed by rolling high-strength screw rods with the diameter of 30mm, and the joints of the tie rod position adjusting screw rods 6 and the second tie rod connecting plate 32 are provided with nuts matched with the tie rod position adjusting screw rods 6.
The pile top supporting plate 7 is formed by rolling a steel plate with the thickness of 10mm, two rows of jack sliding grooves 22 and groove holes for the supporting falcon plates 11 to penetrate are arranged on the pile top supporting plate, two groups of jacking supporting bodies 33 are arranged along the length direction of the jack sliding grooves 22, the cross section of each jack sliding groove 22 is in an inverted T shape, the bottom width is 30cm, and the height is 2 cm.
The pressing support body 33 includes a support pressing plate 9 and a support falcon plate 11, and the support pressing plate 9 is vertically welded to the support falcon plate 11. The support pressing plate 9 and the support falcon plate 11 are respectively formed by rolling steel plates with the thickness of 10mm and 20 mm.
The position control screw 8 is a high-strength screw with the diameter of 30 mm.
The position control bolt 10 is matched with the position control screw 8.
The steel box girder segments 12 are made of steel plate material with a thickness of 20 mm.
The first connecting end plate 15 and the second connecting end plate 16 are rolled by steel plates with the thickness of 20mm and are respectively welded with the connected steel box girder segments 12 and the connecting guide girder 14.
The guide beam fastening groove 17 is formed by rolling a steel plate with the thickness of 10mm, the cross section of the guide beam fastening groove is U-shaped, the guide beam fastening groove is sleeved at the end part of the connecting guide beam 14, and the outer side wall of the guide beam fastening groove is provided with the connecting anchor plate 13. The connecting anchor plate 13 is formed by rolling a steel plate with the thickness of 10mm and is connected with the guide beam fastening groove 17 and the steel box girder segment 12 in a welding mode, and the connecting guide beam 14 is a Bailey truss with the size of 3m multiplied by 1.5 m.
The end plate fastening bolts 18 are high-strength bolts having a diameter of 60 mm.
The fastening anchor bars 19 are formed by rolling threaded ribbed steel bars with a diameter of 32 mm.
The stress sensor 20 is a vibrating wire type steel bar stress meter.
The jack connecting falcon 23 is formed by rolling a steel plate with the thickness of 10mm, the cross section of the jack connecting falcon 23 is in an inverted T shape and is vertically welded and connected with the bottom surface of the walking jack 21, the walking jack 21 adopts a hydraulic jack, and transverse pushing counter force is provided for the walking jack 21 through the supporting falcon plate 11.
The supporting and pressing end plate 24 is formed by rolling a steel plate with the thickness of 10mm, the side, deviating from the steel box girder segment 12, of the supporting and pressing end plate is provided with a jacking guide groove 27, the jacking guide groove 27 is formed by rolling a steel plate with the thickness of 10mm, the cross section of the jacking guide groove is U-shaped, and the groove width is 50cm and the height is 20 cm.
The end plate positioning bolt 25 is a high-strength bolt with the diameter of 60mm and is in threaded connection with the supporting and pressing end plate 24.
The jacking block 26 is made of H-shaped steel with the specification of 450 multiplied by 200 multiplied by 9 multiplied by 14, jacking blocks 26 with different lengths are adopted according to the stroke control requirement of the horizontal pushing jack 29, and a hydraulic jack with the capacity of 100 tons is adopted for the horizontal pushing jack 29.
The back pressure baffle 28 is formed by rolling a steel plate with the thickness of 20 mm.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (7)
1. Go up and stride channel steel arch bridge mounting structure, its characterized in that includes: the steel pipe pile comprises a steel pipe pile (1), steel box girder segments (12), connecting guide beams (14), fastening anchor bars (19) and jacking cushion blocks (26), wherein a pile side hoop (2) is sleeved outside the steel pipe pile (1), a hoop fastening bolt (3) is arranged on the pile side hoop (2) and firmly connected with the pile side hoop (2) and the steel pipe pile (1), an inter-pile tie bar (4) is arranged on the pile side hoop (2), the adjacent inter-pile tie bars (4) are connected through a tie bar connector (5), a first connecting end plate (15) is arranged at the joint of the steel box girder segments (12) and the connecting guide beams (14), a second connecting end plate (16) is arranged at the joint end of the connecting guide beams (14) and the steel box girder segments (12), the first connecting end plate (15) is connected with the second connecting end plate (16) through an end plate fastening bolt (18), and a guide beam fastening groove (17) is arranged at the end, far away from the second connecting end plate (16), of the connecting guide beams (14), the steel pipe pile is characterized in that a stress sensor (20) is arranged on the fastening anchor bar (19), a pile top supporting plate (7) is laid on the top of the steel pipe pile (1), a walking jack (21) and a back pressure baffle (28) are arranged on the pile top supporting plate (7), a jack sliding groove (22) is arranged on the pile top supporting plate (7), a jacking supporting body (33) is arranged along the length direction of the jack sliding groove (22), the walking jack (21) is connected with the jack sliding groove (22) through a jack connecting tenon (23), the steel box girder segment (12) is hung on the upper portion of the walking jack (21), a supporting and pressing end plate (24) is arranged at the end of the steel box girder segment (12) deviating from the connecting guide beam (14), an end plate positioning bolt (25) is arranged on the supporting and pressing end plate (24) and is firmly connected with the steel box girder segment (12), and a top pressure guiding groove (27) is arranged at the side of the supporting and pressing end plate (24) deviating from the steel box girder segment (12), roof pressure guide slot (27) are arranged in and are connected with propping end plate (24) in roof pressure cushion (26), back pressure baffle (28) set up horizontal push jack (29) towards propping end plate (24) side, and horizontal push jack (29) output shaft is connected with roof pressure cushion (26).
2. The mounting structure of the up-span channel steel arch bridge of claim 1, wherein the pile-side hoop (2) comprises two hoop plates (30) with the same shape, the two opposite hoop plates (30) are firmly connected by a hoop fastening bolt (3), and the inter-pile tie bars (4) are welded on the outer side walls of the hoop plates (30).
3. The mounting structure of the steel arch bridge of the overpass according to claim 1, wherein the tie rod connecting body (5) comprises a first tie rod connecting plate (31), a second tie rod connecting plate (32) and tie rod positioning screws (6), the first tie rod connecting plate (31) and the second tie rod connecting plate (32) are respectively and vertically welded with the opposite inter-pile tie rods (4), two tie rod positioning screws (6) are welded on the first tie rod connecting plate (31), the tie rod positioning screws (6) pass through the second tie rod connecting plate (32) and are connected with the second tie rod connecting plate through nuts, two rows of jack chutes (22) and a slot hole for the support falcon (11) to pass through are arranged on the pile top supporting plate (7), and the cross section of the jack chutes (22) is in an inverted T shape.
4. The mounting structure of the steel arch bridge of the upper cross channel according to claim 1, wherein the jacking support body (33) comprises a supporting pressure plate (9) and a supporting falcon plate (11), the supporting pressure plate (9) is vertically welded with the supporting falcon plate (11), the top of the supporting falcon plate (11) penetrates through the pile top supporting plate (7), a position control screw (8) is fixedly mounted on the lower surface of the pile top supporting plate (7), the bottom of the position control screw (8) penetrates through a reserved hole of the supporting pressure plate (9), and a position control bolt (10) is screwed on the position control screw (8).
5. The mounting structure of the upper-cross channel steel arch bridge of claim 1, wherein the cross section of the guide beam fastening groove (17) is "U" shaped, the guide beam fastening groove (17) is sleeved on the end of the connecting guide beam (14), the outer side walls of the guide beam fastening groove (17) and the steel box girder segment (12) are respectively provided with a connecting anchor plate (13), the connecting anchor plate (13) is welded and fixed with the guide beam fastening groove (17) and the steel box girder segment (12), and two ends of the fastening anchor bar (19) are respectively connected with the connecting anchor plate (13) on the outer side walls of the guide beam fastening groove (17) and the steel box girder segment (12).
6. The mounting structure of the steel arch bridge of the overpass according to claim 1, wherein the cross section of the jack connecting falcon (23) is in an inverted 'T' shape, and is vertically welded and fixed with the bottom surface of the walking jack (21), and the walking jack (21) adopts a hydraulic jack.
7. The mounting structure of the steel arch bridge of the upper cross-channel according to claim 1, wherein the cross section of the jacking guide groove (27) is U-shaped, and the jacking guide groove (27) and the jacking cushion block (26) are formed by rolling profile steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202022455112.XU CN213681769U (en) | 2020-10-28 | 2020-10-28 | Mounting structure of steel arch bridge of upper-span channel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022455112.XU CN213681769U (en) | 2020-10-28 | 2020-10-28 | Mounting structure of steel arch bridge of upper-span channel |
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| CN213681769U true CN213681769U (en) | 2021-07-13 |
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| CN202022455112.XU Active CN213681769U (en) | 2020-10-28 | 2020-10-28 | Mounting structure of steel arch bridge of upper-span channel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116289631A (en) * | 2023-05-06 | 2023-06-23 | 合肥城建投资控股有限公司 | Step-by-step pushing construction device for steel box girder |
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2020
- 2020-10-28 CN CN202022455112.XU patent/CN213681769U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116289631A (en) * | 2023-05-06 | 2023-06-23 | 合肥城建投资控股有限公司 | Step-by-step pushing construction device for steel box girder |
| CN116289631B (en) * | 2023-05-06 | 2023-08-11 | 合肥城建投资控股有限公司 | Step-by-step pushing construction device for steel box girder |
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