CN216474448U - Temporary connection structure for bridge steel box girder pushing construction - Google Patents
Temporary connection structure for bridge steel box girder pushing construction Download PDFInfo
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- CN216474448U CN216474448U CN202123443301.6U CN202123443301U CN216474448U CN 216474448 U CN216474448 U CN 216474448U CN 202123443301 U CN202123443301 U CN 202123443301U CN 216474448 U CN216474448 U CN 216474448U
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Abstract
The utility model discloses a bridge steel case roof beam top pushes away construction and uses interim connection structure, including setting up the interim adapting unit between two adjacent steel case roof beams, interim adapting unit includes web connector, top plate connector and bottom plate connector. The utility model has the advantages of simple structure and reasonable design, first steel box girder and the second steel box girder that will treat construction expansion joint both sides through setting up interim adapting unit can dismantle and connect as an organic wholely, excellent in connection effect, and can remain the construction space of treating the construction expansion joint between first steel box girder and second steel box girder, the installation is convenient with the dismantlement, high construction efficiency, construction period has been shortened, avoid causing the damage to the roof beam body of first steel box girder and second steel box girder cooperation department, and interim connection structure can retrieve and recycle, and construction resources are saved, construction cost is effectively reduced, and convenient to popularize and use.
Description
Technical Field
The utility model belongs to the technical field of the bridge construction, concretely relates to bridge steel case roof beam top pushes away construction and uses temporary connection structure.
Background
The existing steel structure bridge usually adopts a top-pushing method to install the steel box girder when crossing a river channel or a road, namely, the steel box girder is assembled on a land bracket in advance to form a multi-section steel box girder, a temporary support pier is arranged as a top-pushing pier, the multi-section steel box girder is pushed along a guide rail and slides to an installation position, and the construction of the multi-section steel box girder above the river channel or the road is realized; the multi-section steel box girder comprises a plurality of steel box girders arranged along the extension direction of a bridge, expansion joints are required to be arranged between two adjacent steel box girders in the plurality of steel box girders, the expansion joints are used for ensuring that a bridge span structure can freely deform according to a static force diagram under the influence of factors such as temperature change, concrete contraction and creep, load action and the like, and ensuring that a vehicle can stably pass through the bridge span structure, and during the pushing construction of the multi-section steel box girder, the two steel box girders at two sides of the expansion joints need to be connected into a whole, so that the pushing construction of the whole multi-section steel box girder is convenient, after the whole multi-section steel box girder is pushed in place, the two adjacent steel box girders are separated, and the expansion joints are constructed at the gaps between the two adjacent steel box girders; at present, during the pushing construction of bridge steel box girders, two steel box girders at two sides of an expansion joint are generally connected into a whole by adopting a connecting steel plate, the connecting steel plate is welded with the steel box girders, and the connecting steel plate between two adjacent steel box girders is cut off after the multi-section steel box girders are pushed in place integrally; and when the connecting steel plates are welded and cut off on the steel box girder, the steel box girder body is easily damaged, the construction quality of the bridge is affected, and the connecting effect is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed against, a bridge steel box roof beam pushes away construction and uses interim connection structure is provided, a structure is simple, and reasonable design, first steel box roof beam and the second steel box roof beam that will treat construction expansion joint both sides through setting up interim adapting unit can be dismantled to be connected as an organic wholely, and excellent in connection effect, the installation is convenient with the dismantlement, and the efficiency of construction is high, construction period has been shortened, avoid causing the damage to the roof beam body of first steel box roof beam and second steel box roof beam cooperation department, and interim connection structure can retrieve and recycle, and construction resources are saved, construction cost has effectively been reduced, and convenient popularization and use.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a bridge steel box girder pushes away construction and uses interim connection structure, includes the multiunit section steel box girder that waits to push away, multiunit section steel box girder includes a plurality of steel box girders of laying along bridge extending direction, every the steel box girder all includes roof, bottom plate and oblique web, its characterized in that: a temporary connecting part is arranged between two adjacent steel box girders in the plurality of steel box girders;
the two adjacent steel box girders are respectively a first steel box girder and a second steel box girder, and the first steel box girder is positioned on the front side of the second steel box girder;
the temporary connecting part comprises a web connector, a top plate connector and a bottom plate connector, the web connector is connected between the inclined web of the first steel box girder and the inclined web of the second steel box girder, the top plate connector is connected between the top plate of the first steel box girder and the top plate of the second steel box girder, and the bottom plate connector is connected between the bottom plate of the first steel box girder and the bottom plate of the second steel box girder.
Foretell bridge steel case roof beam pushes away construction and uses interim connection structure, its characterized in that: the two web connectors correspond to the two oblique webs of the first steel box girder and the two oblique webs of the second steel box girder one by one;
each web plate connector comprises a web plate connecting plate, a first bolt connecting piece used for connecting the web plate connecting plate and an inclined web plate of the first steel box girder, and a second bolt connecting piece used for connecting the web plate connecting plate and the inclined web plate of the second steel box girder;
the web connecting plate includes that all is parallel interior web connecting plate and the outer web connecting plate of laying with oblique web, interior web connecting plate and outer web connecting plate are located the inside and outside both sides of oblique web respectively, be provided with a plurality of interior level stiffening plates along its direction of height on the medial surface of interior web connecting plate, be provided with on the lateral surface of interior web connecting plate and be used for carrying out spacing preceding vertical limiting plate and the vertical limiting plate in back to oblique web, be provided with a plurality of outer level stiffening plates along its direction of height on the lateral surface of outer web connecting plate.
Foretell bridge steel case roof beam pushes away construction and uses interim connection structure, its characterized in that: the rear end face of the oblique web of the first steel box girder is attached to the front end face of the front vertical limiting plate, the front end face of the oblique web of the second steel box girder is attached to the rear end face of the rear vertical limiting plate, and the distance between the front end face of the front vertical limiting plate and the rear end face of the rear vertical limiting plate is equal to the width of the expansion joint to be constructed between the first steel box girder and the second steel box girder.
Foretell bridge steel case roof beam pushes away construction and uses interim connection structure, its characterized in that: the first bolt connecting piece comprises a plurality of first connecting bolts, and each first connecting bolt sequentially penetrates through the front end of the outer web connecting plate, the rear end of the inclined web of the first steel box girder and the front end of the inner web connecting plate to be matched with a first connecting nut;
the second bolt connecting piece comprises a plurality of second connecting bolts, and each second connecting bolt sequentially penetrates through the rear end of the outer web connecting plate, the front end of the inclined web of the second steel box girder and the rear end of the inner web connecting plate to be matched with the second connecting nut.
Foretell bridge steel case roof beam pushes away construction and uses interim connection structure, its characterized in that: the number of the top plate connectors is two, and the two top plate connectors correspond to the two top plates of the first steel box girder and the two top plates of the second steel box girder one by one;
every the roof connector all includes preceding top mount pad and back top mount pad to and the top connecting rod of demountable installation between preceding top mount pad and back top mount pad, preceding top mount pad sets up the rear end at the roof of first steel box girder, back top mount pad sets up the front end at the roof of second steel box girder.
Foretell bridge steel case roof beam pushes away construction and uses interim connection structure, its characterized in that: the front top mounting seat and the rear top mounting seat are identical in structure, and comprise top mounting plates arranged on the top plate and a plurality of top stiffening plates arranged between the top mounting plates and the top plate;
the top connecting rod comprises a top rod body, a front top connecting plate and a rear top connecting plate, wherein the front top connecting plate and the rear top connecting plate are symmetrically arranged at the front end and the rear end of the top rod body, a top rod body stiffening plate is arranged between the front top connecting plate and the top rod body and between the rear top connecting plate and the top rod body, the front top connecting plate is connected with the top mounting plate of the front top mounting seat through a front top connecting bolt, and the rear top connecting plate is connected with the top mounting plate of the rear top mounting seat through a rear top connecting bolt.
Foretell bridge steel case roof beam pushes away construction and uses interim connection structure, its characterized in that: the bottom plate connector comprises a front bottom mounting seat, a rear bottom mounting seat and a bottom connecting rod, wherein the bottom connecting rod is detachably mounted between the front bottom mounting seat and the rear bottom mounting seat, the front bottom mounting seat is arranged at the rear end of the bottom plate of the first steel box girder, and the rear bottom mounting seat is arranged at the front end of the bottom plate of the second steel box girder.
Foretell bridge steel case roof beam pushes away construction and uses interim connection structure, its characterized in that: the front bottom mounting seat and the rear bottom mounting seat are identical in structure, and comprise bottom mounting plates and a plurality of bottom stiffening plates which are arranged between the bottom mounting plates and the bottom plate;
the bottom connecting rod includes the bottom body of rod, the preceding bottom connecting plate and the back bottom connecting plate that the symmetry set up both ends around the bottom body of rod, between preceding bottom connecting plate and the bottom body of rod to and all be provided with bottom body of rod stiffening plate between back bottom connecting plate and the bottom body of rod, preceding bottom connecting plate is connected with the bottom mounting panel of preceding bottom mount pad through preceding bottom connecting bolt, back bottom connecting plate is connected with the bottom mounting panel of back bottom mount pad through back bottom connecting bolt.
Compared with the prior art, the utility model has the following advantage:
1. the utility model has the advantages of simple structure and reasonable design, it is convenient to connect, and the efficiency of construction is high, has shortened construction period, and can retrieve the temporary connection structure and recycle, practices thrift construction resources, has effectively reduced construction cost, convenient to popularize and use.
2. The utility model discloses a set up interim adapting unit and can dismantle with the second steel box roof beam and connect as an organic wholely the first steel box roof beam that will wait to be under construction the expansion joint both sides, and remain the construction space of waiting to be under construction the expansion joint between first steel box roof beam and second steel box roof beam, interim adapting unit can dismantle with first steel box roof beam and second steel box roof beam and be connected, be convenient for push away in the whole back that targets in place at multisection steel box roof beam and dismantle interim adapting unit, it is convenient to install and dismantle, avoid causing the damage to the roof beam body of first steel box roof beam and second steel box roof beam cooperation department, guarantee the construction quality of bridge.
3. The utility model discloses a set up web connector and can dismantle the oblique web of first steel box roof beam and the oblique web of second steel box roof beam and be connected as an organic wholely, can dismantle the roof of first steel box roof beam and the roof of second steel box roof beam through setting up the roof connector and be connected as an organic wholely, can dismantle the bottom plate of first steel box roof beam and the bottom plate of second steel box roof beam through setting up the bottom plate connector and be connected as an organic wholely, and then can dismantle first steel box roof beam and second steel box roof beam and be connected as an organic wholely, excellent in connection effect, the problem of welding seam fracture probably appears when solving first steel box roof beam and second steel box roof beam welding, the security is good, convenient to popularize and use.
To sum up, the utility model has the advantages of simple structure and reasonable design, first steel box girder and the second steel box girder that will treat construction expansion joint both sides through setting up interim adapting unit can dismantle to be connected as an organic wholely, excellent in connection effect, and can remain the construction space of treating the construction expansion joint between first steel box girder and second steel box girder, the installation is convenient with the dismantlement, the efficiency of construction is high, construction period has been shortened, avoid causing the damage to the roof beam body of first steel box girder and second steel box girder cooperation department, and interim connection structure can retrieve and recycle, practice thrift construction resources, construction cost has effectively been reduced, convenient to popularize and use.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a partially enlarged view of fig. 1 at B.
Fig. 4 is a partially enlarged view of fig. 1 at C.
Fig. 5 is a partially enlarged view of fig. 1 at D.
Fig. 6 is a schematic view of the structure of fig. 1 with the top plate removed.
Fig. 7 is a front view of fig. 1.
Fig. 8 is the utility model discloses the connection structure schematic diagram of interior web connecting plate, interior horizontal stiffener and the vertical limiting plate in back.
Description of reference numerals:
1-a top plate; 2-a bottom plate; 3-oblique web plate;
4-a first steel box girder; 5-a second steel box girder; 6-inner web connecting plate;
7-outer web connecting plate; 8-inner horizontal stiffening plate; 9-front vertical limiting plate;
10-rear vertical limiting plate; 11-outer horizontal stiffening plates; 12-a first connecting bolt;
13-a first coupling nut; 14-a second connecting bolt; 15-front top mount;
16-rear top mount; 17-top connecting rod; 17-1-top rod body;
17-2-front top connection plate; 17-3-rear top connection plate;
17-4-front top connecting bolt; 17-5-rear top connecting bolt;
17-6-top rod body stiffening plate; 18-a top mounting plate;
19-top stiffener; 20-rear bottom mounting seat; 21-bottom rod body;
21-1-bottom bar; 21-2-front bottom connecting plate; 21-3-rear bottom connecting plate;
21-4-front bottom connecting bolt; 21-5-rear bottom connecting bolt;
21-6-a bottom rod body stiffening plate; 22-bottom mounting plate; 23-bottom stiffening plate;
24-front bottom mount; 25-second coupling nut.
Detailed Description
As shown in fig. 1 to 8, the utility model discloses a multi-section steel box girder to be pushed, the multi-section steel box girder includes a plurality of steel box girders arranged along the extending direction of the bridge, each steel box girder includes a top plate 1, a bottom plate 2 and an inclined web plate 3, and a temporary connecting part is arranged between two adjacent steel box girders in the plurality of steel box girders;
the two adjacent steel box girders are respectively a first steel box girder 4 and a second steel box girder 5, and the first steel box girder 4 is positioned on the front side of the second steel box girder 5;
the temporary connecting part comprises a web connector, a top plate connector and a bottom plate connector, wherein the web connector is connected between an inclined web 3 of the first steel box girder 4 and an inclined web 3 of the second steel box girder 5, the top plate connector is connected between a top plate 1 of the first steel box girder 4 and a top plate 1 of the second steel box girder 5, and the bottom plate connector is connected between a bottom plate 2 of the first steel box girder 4 and a bottom plate 2 of the second steel box girder 5.
In the embodiment, it should be noted that a gap for construction of an expansion joint to be constructed is arranged between a first steel box girder 4 and a second steel box girder 5, the first steel box girder 4 and the second steel box girder 5 at two sides of the expansion joint to be constructed are detachably connected into a whole by arranging a temporary connecting part, a construction space of the expansion joint to be constructed is reserved between the first steel box girder 4 and the second steel box girder 5, the temporary connecting part is detachably connected with the first steel box girder 4 and the second steel box girder 5, so that the temporary connecting part can be conveniently detached after the multi-section steel box girder is integrally pushed in place, the installation and detachment are convenient, damage to a girder body at the matching part of the first steel box girder 4 and the second steel box girder 5 is avoided, and the construction quality of a bridge is ensured;
after the temporary connecting part is removed, a gap for construction of the expansion joint to be constructed still remains between the first steel box girder 4 and the second steel box girder 5, the positions of the first steel box girder 4 and the second steel box girder 5 do not need to be adjusted, the expansion joint can be directly constructed between the first steel box girder 4 and the second steel box girder 5, the time is saved, and the construction progress of the bridge can be improved;
the oblique web 3 of the first steel box girder 4 and the oblique web 3 of the second steel box girder 5 are detachably connected into a whole by arranging the web connector, the top plate 1 of the first steel box girder 4 and the top plate 1 of the second steel box girder 5 are detachably connected into a whole by arranging the top plate connector, the bottom plate 2 of the first steel box girder 4 and the bottom plate 2 of the second steel box girder 5 are detachably connected into a whole by arranging the bottom plate connector, and then the first steel box girder 4 and the second steel box girder 5 are detachably connected into a whole, so that the connection effect is good, the problem that a welding seam is cracked when the first steel box girder 4 and the second steel box girder 5 are welded is solved, the safety is good, and the popularization and the use are convenient.
As shown in fig. 1, 6, 7 and 8, in the present embodiment, the number of web connectors is two, and two web connectors are in one-to-one correspondence with two oblique webs 3 of the first steel box girder 4 and two oblique webs 3 of the second steel box girder 5;
each web connector comprises a web connecting plate, a first bolt connecting piece for connecting the web connecting plate and the inclined web 3 of the first steel box girder 4, and a second bolt connecting piece for connecting the web connecting plate and the inclined web 3 of the second steel box girder 5;
the web connecting plate includes that all is parallel interior web connecting plate 6 and outer web connecting plate 7 of laying with oblique web 3, interior web connecting plate 6 is located oblique web 3's inside and outside both sides respectively with outer web connecting plate 7, be provided with a plurality of interior level stiffening plates 8 along its direction of height on the medial surface of interior web connecting plate 6, be provided with on the lateral surface of interior web connecting plate 6 and be used for carrying out spacing preceding vertical limiting plate 9 and the vertical limiting plate 10 in back to oblique web 3, be provided with a plurality of outer level stiffening plates 11 along its direction of height on the lateral surface of outer web connecting plate 7.
In this embodiment, in actual use, one web connector is connected between one of the oblique webs 3 of the first steel box girder 4 and one of the oblique webs 3 of the second steel box girder 5, and the other web connector is connected between the other oblique web 3 of the first steel box girder 4 and the other oblique web 3 of the second steel box girder 5.
In this embodiment, the strength of the inner web connecting plate 6 is enhanced by providing the plurality of inner horizontal stiffening plates 8 on the inner side surface of the inner web connecting plate 6, and the strength of the outer web connecting plate 7 is enhanced by providing the plurality of outer horizontal stiffening plates 11 on the outer side surface of the outer web connecting plate 7, so that the overall strength of the web connecting plate is enhanced.
In this embodiment, it is spacing to the oblique web 3 of first steel box girder 4 through set up preceding vertical limiting plate 9 on the lateral surface of inner web connecting plate 6, it is spacing to the oblique web 3 of second steel box girder 5 through set up back vertical limiting plate 10 on the lateral surface of inner web connecting plate 6, it still remains the clearance that supplies to wait to be under construction the expansion joint construction to make between first steel box girder 4 and the second steel box girder 5 after the construction is accomplished in the top push of multisection steel box girder, and simultaneously, be convenient for guarantee first steel box girder 4 and second steel box girder 5 and the stability of being connected of temporary connection part in the top push construction of multisection steel box girder.
As shown in fig. 6, in this embodiment, the rear end face of the oblique web 3 of the first steel box girder 4 is attached to the front end face of the front vertical limiting plate 9, the front end face of the oblique web 3 of the second steel box girder 5 is attached to the rear end face of the rear vertical limiting plate 10, and the distance between the front end face of the front vertical limiting plate 9 and the rear end face of the rear vertical limiting plate 10 is equal to the width of the gap to be constructed between the first steel box girder 4 and the second steel box girder 5.
As shown in fig. 6 and 7, in the present embodiment, the first bolt connection member includes a plurality of first connection bolts 12, and each of the first connection bolts 12 is engaged with the first connection nut 13 through the front end of the outer web connection plate 7, the rear end of the inclined web 3 of the first steel box girder 4, and the front end of the inner web connection plate 6 in sequence;
the second bolt connecting piece comprises a plurality of second connecting bolts 14, and each second connecting bolt 14 sequentially penetrates through the rear end of the outer web connecting plate 7, the front end of the inclined web 3 of the second steel box girder 5 and the rear end of the inner web connecting plate 6 to be matched with a second connecting nut 25.
In this embodiment, in actual use, the first connection nut 13 and the second connection nut 25 are both welded to the inner side surface of the inner web connecting plate 6.
As shown in fig. 1, in the present embodiment, the number of the roof plate connectors is two, and two roof plate connectors correspond to two roof plates 1 of the first steel box girder 4 and two roof plates 1 of the second steel box girder 5 one to one;
every the roof connector all includes preceding top mount 15 and back top mount 16 to and demountable installation is at the top connecting rod 17 between preceding top mount 15 and back top mount 16, preceding top mount 15 sets up the rear end at roof 1 of first steel box girder 4, back top mount 16 sets up the front end at roof 1 of second steel box girder 5.
In this embodiment, in actual use, one roof plate connector is connected between one roof plate 1 of the first steel box girder 4 and one roof plate 1 of the second steel box girder 5, and the other roof plate connector is connected between the other roof plate 1 of the first steel box girder 4 and the other roof plate 1 of the second steel box girder 5.
As shown in fig. 1 to 3, in the present embodiment, the front top mount 15 and the rear top mount 16 have the same structure, and each of the front top mount 15 and the rear top mount 16 includes a top mount plate 18 disposed on the top plate 1, and a plurality of top stiffener plates 19 disposed between the top mount plate 18 and the top plate 1;
the top connecting rod 17 comprises a top rod body 17-1, a front top connecting plate 17-2 and a rear top connecting plate 17-3 which are symmetrically arranged at the front end and the rear end of the top rod body 17-1, top rod body stiffening plates 17-6 are arranged between the front top connecting plate 17-2 and the top rod body 17-1 and between the rear top connecting plate 17-3 and the top rod body 17-1, the front top connecting plate 17-2 is connected with a top mounting plate 18 of the front top mounting seat 15 through a front top connecting bolt 17-4, and the rear top connecting plate 17-3 is connected with the top mounting plate 18 of the rear top mounting seat 16 through a rear top connecting bolt 17-5.
In this embodiment, the number of the top connecting rods 17 between the front top mount 15 and the rear top mount 16 is two, and the two top connecting rods 17 are arranged in parallel.
In the embodiment, in practical use, the top mounting plate 18 is welded on the top plate 1, the top mounting plate 18 and the top plate 1 are vertically arranged, and the welding strength between the top mounting plate 18 and the top plate 1 is enhanced by arranging the plurality of top stiffening plates 19; the connection strength of the front top connecting plate 17-2 and the top rod body 17-1, and the connection strength of the rear top connecting plate 17-3 and the top rod body 17-1 are enhanced by arranging the top rod body stiffening plate 17-6.
As shown in fig. 1, in the present embodiment, the backplane connector includes a front bottom mount 24 and a rear bottom mount 20, and a bottom connection rod 21 detachably mounted between the front bottom mount 24 and the rear bottom mount 20, the front bottom mount 24 is disposed at the rear end of the backplane 2 of the first steel box girder 4, and the rear bottom mount 20 is disposed at the front end of the backplane 2 of the second steel box girder 5.
As shown in fig. 1, 4 and 5, in the present embodiment, the front bottom mounting seat 24 and the rear bottom mounting seat 20 have the same structure, and the front bottom mounting seat 24 and the rear bottom mounting seat 20 each include a bottom mounting plate 22 and a plurality of bottom stiffener plates 23 each disposed between the bottom mounting plate 22 and the bottom plate 2;
the bottom connecting rod 21 comprises a bottom rod body 21-1, a front bottom connecting plate 21-2 and a rear bottom connecting plate 21-3 which are symmetrically arranged at the front end and the rear end of the bottom rod body 21-1, bottom rod body stiffening plates 21-6 are arranged between the front bottom connecting plate 21-2 and the bottom rod body 21-1 and between the rear bottom connecting plate 21-3 and the bottom rod body 21-1, the front bottom connecting plate 21-2 is connected with a bottom mounting plate 22 of a front bottom mounting seat 24 through a front bottom connecting bolt 21-4, and the rear bottom connecting plate 21-3 is connected with the bottom mounting plate 22 of a rear bottom mounting seat 20 through a rear bottom connecting bolt 21-5.
In this embodiment, the number of the bottom connecting rods 21 between the front bottom mounting seat 24 and the rear bottom mounting seat 20 is two, and the two bottom connecting rods 21 are arranged in parallel.
In this embodiment, in actual use, the bottom mounting plate 22 is welded to the bottom plate 2, the bottom mounting plate 22 and the bottom plate 2 are vertically arranged, and the welding strength between the bottom mounting plate 22 and the bottom plate 2 is enhanced by arranging the plurality of bottom stiffening plates 23; the connection strength of the front bottom connecting plate 21-2 and the bottom rod body 21-1, and the connection strength of the rear bottom connecting plate 21-3 and the bottom rod body 21-1 are enhanced by arranging the bottom rod body stiffening plate 21-6.
The utility model discloses during the specific use, mainly include following step:
step one, placing a first steel box girder 4 and a second steel box girder 5: placing the first steel box girder 4 and the second steel box girder 5 on an assembly site, and leaving a gap between the first steel box girder 4 and the second steel box girder 5;
step two, mounting the web connector: two web connectors are installed between two oblique webs 3 of a first steel box girder 4 and two oblique webs 3 of a second steel box girder 5, and when any one web connector is installed, the method mainly comprises the following steps:
step 201, installing an inner web connecting plate 6 at the inner sides of an inclined web 3 of a first steel box girder 4 and an inclined web 3 of a second steel box girder 5; the front end face of a front vertical limiting plate 9 on the inner web connecting plate 6 is attached to the rear end face of an inclined web 3 of the first steel box girder 4, the rear end face of a rear vertical limiting plate 10 on the inner web connecting plate 6 is attached to the front end face of an inclined web 3 of the second steel box girder 5, and the inner side face of the inclined web 3 of the first steel box girder 4 and the inner side face of the inclined web 3 of the second steel box girder 5 are both attached to the outer side face of the inner web connecting plate 6;
step 202, mounting an outer web connecting plate 7 on the outer sides of the inclined web 3 of the first steel box girder 4 and the inclined web 3 of the second steel box girder 5; the outer side face of the inclined web 3 of the first steel box girder 4 and the outer side face of the inclined web 3 of the second steel box girder 5 are both attached to the inner side face of the outer web connecting plate 7;
step 203, connecting the front end of the outer web connecting plate 7, the rear end of the inclined web 3 of the first steel box girder 4 and the front end of the inner web connecting plate 6 into a whole through a plurality of first connecting bolts 12 to complete the connection of the inclined web 3 of the first steel box girder 4 and the web connector;
step 204, connecting the rear end of the outer web connecting plate 7, the front end of the inclined web 3 of the second steel box girder 5 and the rear end of the inner web connecting plate 6 into a whole through a plurality of second connecting bolts 14 to complete the connection of the inclined web 3 of the second steel box girder 5 and the web connector, and further complete the installation of the web connector between the inclined web 3 of the first steel box girder 4 and the inclined web 3 of the second steel box girder 5;
step three, mounting a top plate connector: two roof connectors are arranged between two roofs 1 of a first steel box girder 4 and two roofs 1 of a second steel box girder 5, and when any one roof connector is arranged, the method mainly comprises the following steps:
step 301, mounting the front top mounting base 15: welding a top mounting plate 18 at the rear end of the top plate 1 of the first steel box girder 4, and welding a plurality of top stiffening plates 19 between the top mounting plate 18 and the top plate 1 of the first steel box girder 4 to complete the mounting of the front top mounting seat 15;
step 302, mounting the rear top mount 16: mounting a rear top mounting seat 16 at the front end of the top plate 1 of the second steel box girder 5 according to the method in the step 301, and finishing the mounting of the rear top mounting seat 16;
step 303, mounting the top connecting rod 17: a top connecting rod 17 is arranged between the front top mounting seat 15 and the rear top mounting seat 16, so that the mounting of the top connecting rod 17 is completed, and the mounting of the top plate connector is further completed; the front top connecting plate 17-2 of the top connecting rod 17 is connected with the top mounting plate 18 of the front top mounting seat 15 through a front top connecting bolt 17-4, and the rear top connecting plate 17-3 of the top connecting rod 17 is connected with the top mounting plate 18 of the rear top mounting seat 16 through a rear top connecting bolt 17-5;
step four, installing a bottom plate connector: a bottom plate connector is arranged between a bottom plate 2 of a first steel box girder 4 and a bottom plate 2 of a second steel box girder 5, and the method mainly comprises the following steps:
step 401, mounting the front bottom mounting seat 24: installing a front bottom installation seat 24 at the rear end of the bottom plate 2 of the first steel box girder 4 according to the method in the step 301, and completing the installation of the front bottom installation seat 24;
step 402, mounting the bottom mounting base 20: mounting a rear bottom mounting seat 20 at the front end of the bottom plate 2 of the second steel box girder 5 according to the method in the step 301, and finishing the mounting of the rear bottom mounting seat 20;
step 403, mounting the bottom connecting rod 21: installing the bottom connecting rod 21 between the front bottom mounting seat 24 and the rear bottom mounting seat 20 according to the method described in step 303, completing the installation of the bottom connecting rod 21, and further completing the installation of the temporary connecting member;
step five, repeating the step one to the step four for multiple times until the connection of a plurality of steel box girders of the multi-section steel box girder to be pushed is completed;
step six, incremental launching construction of the multi-section steel box girder: pushing the multi-section steel box girder according to a conventional pushing construction method of the multi-section steel box girder until the multi-section steel box girder is pushed in place;
step seven, removing the temporary connecting part between two adjacent steel box girders, wherein the gap between the two adjacent steel box girders is equal to the width of the expansion joint to be constructed;
step eight, constructing an expansion joint: and constructing an expansion joint at the gap between two adjacent steel box girders. The utility model has the advantages of simple structure and reasonable design, first steel box girder and the second steel box girder that will treat construction expansion joint both sides through setting up interim adapting unit can dismantle and connect as an organic wholely, excellent in connection effect, and can remain the construction space of treating the construction expansion joint between first steel box girder and second steel box girder, the installation is convenient with the dismantlement, high construction efficiency, construction period has been shortened, avoid causing the damage to the roof beam body of first steel box girder and second steel box girder cooperation department, and interim connection structure can retrieve and recycle, and construction resources are saved, construction cost is effectively reduced, and convenient to popularize and use.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses in technical scheme's the protection scope.
Claims (8)
1. The utility model provides a bridge steel box girder pushes away construction and uses interim connection structure, includes the multisection steel box girder that waits to push away, the multisection steel box girder includes a plurality of steel box girders that lay along bridge extending direction, every the steel box girder all includes roof (1), bottom plate (2) and oblique web (3), its characterized in that: a temporary connecting part is arranged between two adjacent steel box girders in the plurality of steel box girders;
the two adjacent steel box girders are respectively a first steel box girder (4) and a second steel box girder (5), and the first steel box girder (4) is positioned on the front side of the second steel box girder (5);
the temporary connecting part comprises a web connector, a top plate connector and a bottom plate connector, wherein the web connector is connected between an inclined web (3) of a first steel box girder (4) and an inclined web (3) of a second steel box girder (5), the top plate connector is connected between a top plate (1) of the first steel box girder (4) and a top plate (1) of the second steel box girder (5), and the bottom plate connector is connected between a bottom plate (2) of the first steel box girder (4) and a bottom plate (2) of the second steel box girder (5).
2. The temporary connecting structure for bridge steel box girder jacking construction according to claim 1, wherein: the number of the web connectors is two, and the two web connectors correspond to the two inclined webs (3) of the first steel box girder (4) and the two inclined webs (3) of the second steel box girder (5) one by one;
each web connector comprises a web connecting plate, a first bolt connecting piece and a second bolt connecting piece, wherein the first bolt connecting piece is used for connecting the web connecting plate and an inclined web plate (3) of a first steel box girder (4), and the second bolt connecting piece is used for connecting the web connecting plate and the inclined web plate (3) of a second steel box girder (5);
the web connecting plate includes that inner web connecting plate (6) and outer web connecting plate (7) that all are parallel laying with oblique web (3), inner web connecting plate (6) and outer web connecting plate (7) are located the inside and outside both sides of oblique web (3) respectively, be provided with horizontal stiffening plate (8) in a plurality of along its direction of height on the medial surface of inner web connecting plate (6), be provided with on the lateral surface of inner web connecting plate (6) and be used for carrying out spacing preceding vertical limiting plate (9) and back vertical limiting plate (10) to oblique web (3), be provided with horizontal stiffening plate (11) outside a plurality of along its direction of height on the lateral surface of outer web connecting plate (7).
3. The temporary connecting structure for bridge steel box girder jacking construction according to claim 2, wherein: the rear end face of the oblique web (3) of first steel box girder (4) is laminated with the preceding terminal surface of preceding vertical limiting plate (9), the preceding terminal surface of the oblique web (3) of second steel box girder (5) is laminated with the rear end face of the vertical limiting plate (10) in back mutually, the interval between the preceding terminal surface of preceding vertical limiting plate (9) and the rear end face of the vertical limiting plate (10) in back equals with the width of treating the construction expansion joint between first steel box girder (4) and second steel box girder (5).
4. The temporary connecting structure for bridge steel box girder jacking construction according to claim 2, wherein: the first bolt connecting piece comprises a plurality of first connecting bolts (12), and each first connecting bolt (12) sequentially penetrates through the front end of the outer web connecting plate (7), the rear end of the inclined web (3) of the first steel box girder (4) and the front end of the inner web connecting plate (6) to be matched with a first connecting nut (13);
the second bolt connecting piece comprises a plurality of second connecting bolts (14), and each second connecting bolt (14) sequentially penetrates through the rear end of the outer web connecting plate (7), the front end of the inclined web (3) of the second steel box girder (5) and the rear end of the inner web connecting plate (6) to be matched with a second connecting nut (25).
5. The temporary connecting structure for bridge steel box girder jacking construction according to claim 1, wherein: the number of the top plate connectors is two, and the two top plate connectors correspond to the two top plates (1) of the first steel box girder (4) and the two top plates (1) of the second steel box girder (5) one by one;
every the roof connector all includes preceding top mount pad (15) and back top mount pad (16) to and demountable installation top connecting rod (17) between preceding top mount pad (15) and back top mount pad (16), preceding top mount pad (15) set up the rear end in roof (1) of first steel box roof beam (4), back top mount pad (16) set up the front end in roof (1) of second steel box roof beam (5).
6. The temporary connecting structure for bridge steel box girder jacking construction according to claim 5, wherein: the front top mounting seat (15) and the rear top mounting seat (16) are identical in structure, and the front top mounting seat (15) and the rear top mounting seat (16) respectively comprise a top mounting plate (18) arranged on the top plate (1) and a plurality of top stiffening plates (19) arranged between the top mounting plate (18) and the top plate (1);
the top connecting rod (17) comprises a top rod body (17-1), a front top connecting plate (17-2) and a rear top connecting plate (17-3) which are symmetrically arranged at the front end and the rear end of the top rod body (17-1), the front top connecting plate (17-2) is arranged between the top rod body (17-1), and a top rod body stiffening plate (17-6) is arranged between the rear top connecting plate (17-3) and the top rod body (17-1), the front top connecting plate (17-2) is connected with a top mounting plate (18) of the front top mounting seat (15) through a front top connecting bolt (17-4), the rear top connecting plate (17-3) is connected with a top mounting plate (18) of the rear top mounting seat (16) through a rear top connecting bolt (17-5).
7. The temporary connecting structure for bridge steel box girder jacking construction according to claim 1, wherein: the backplane connector comprises a front bottom mounting seat (24), a rear bottom mounting seat (20) and a bottom connecting rod (21) which is detachably mounted between the front bottom mounting seat (24) and the rear bottom mounting seat (20), wherein the front bottom mounting seat (24) is arranged at the rear end of a bottom plate (2) of a first steel box girder (4), and the rear bottom mounting seat (20) is arranged at the front end of the bottom plate (2) of a second steel box girder (5).
8. The temporary connecting structure for bridge steel box girder jacking construction according to claim 7, wherein: the front bottom mounting seat (24) and the rear bottom mounting seat (20) are identical in structure, and the front bottom mounting seat (24) and the rear bottom mounting seat (20) respectively comprise a bottom mounting plate (22) and a plurality of bottom stiffening plates (23) which are respectively arranged between the bottom mounting plate (22) and the bottom plate (2);
the bottom connecting rod (21) comprises a bottom rod body (21-1), a front bottom connecting plate (21-2) and a rear bottom connecting plate (21-3) which are symmetrically arranged at the front end and the rear end of the bottom rod body (21-1), the front bottom connecting plate (21-2) is arranged between the bottom rod body (21-1), and a bottom rod body stiffening plate (21-6) is arranged between the rear bottom connecting plate (21-3) and the bottom rod body (21-1), the front bottom connecting plate (21-2) is connected with a bottom mounting plate (22) of a front bottom mounting seat (24) through a front bottom connecting bolt (21-4), the rear bottom connecting plate (21-3) is connected with a bottom mounting plate (22) of the rear bottom mounting seat (20) through a rear bottom connecting bolt (21-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123443301.6U CN216474448U (en) | 2021-12-31 | 2021-12-31 | Temporary connection structure for bridge steel box girder pushing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123443301.6U CN216474448U (en) | 2021-12-31 | 2021-12-31 | Temporary connection structure for bridge steel box girder pushing construction |
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| Publication Number | Publication Date |
|---|---|
| CN216474448U true CN216474448U (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123443301.6U Active CN216474448U (en) | 2021-12-31 | 2021-12-31 | Temporary connection structure for bridge steel box girder pushing construction |
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| Country | Link |
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| CN (1) | CN216474448U (en) |
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