CN113863116A

CN113863116A - Assembled steel bridge

Info

Publication number: CN113863116A
Application number: CN202111256428.9A
Authority: CN
Inventors: 冯志强; 陈文超
Original assignee: Individual
Current assignee: Hunan Jinge Construction Technology Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2021-12-31
Anticipated expiration: 2041-10-27
Also published as: CN113863116B

Abstract

The invention relates to the technical field of bridges, in particular to an assembled steel bridge, which comprises a bridge deck mechanism, wherein a stabilizing mechanism is connected above the bridge deck mechanism, a supporting mechanism matched with the stabilizing mechanism is connected on the stabilizing mechanism, a base mechanism is fixed at the bottom of the bridge deck mechanism, and a reinforcing mechanism connected with the base mechanism is arranged at the bottom of the bridge deck mechanism; the supporting plate on the supporting mechanism is adjusted to the inner side of the connecting beam to form another bridge deck above the bridge deck plate, and the bridge deck is supported by steel rods under a new bridge deck formed by the supporting plate; when taking place earthquake, adjust the backup pad to the outside of tie-beam, support the backup pad through the steel pole to can make the bridge can be stably used when making the aftershock take place once more.

Description

Assembled steel bridge

Technical Field

The invention relates to the technical field of bridges, in particular to an assembled steel bridge.

Background

When natural disasters occur, such as flood disasters and earthquakes, professionals are needed to carry out rescue and relief, but in the process of rescue and relief, materials need to be transported, but the materials are damaged on roads or submerged by water in the transportation process, so that difficulty is increased for relief, the conventional bridge is inconvenient to quickly lay when the natural disasters occur, after the earthquake comes, the road surface cannot quickly pass, and aftershocks continuously occur, so that the rescue is difficult; preparation is needed before the arrival of flood, but the existing bridge cannot be matched with the arrival of flood before the arrival of flood and then can be used continuously.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a fabricated steel bridge.

The invention achieves the aim through the following technical scheme, and the assembly type steel bridge comprises a bridge deck mechanism, wherein a stabilizing mechanism is connected above the bridge deck mechanism, a supporting mechanism matched with the stabilizing mechanism is connected on the stabilizing mechanism, a base mechanism is fixed at the bottom of the bridge deck mechanism, and a reinforcing mechanism connected with the base mechanism is arranged at the bottom of the bridge deck mechanism; the supporting plate on the supporting mechanism is adjusted to the inner side of the connecting beam to form another bridge deck above the bridge deck plate, and the bridge deck is supported by steel rods under a new bridge deck formed by the supporting plate; when taking place earthquake, adjust the backup pad to the outside of tie-beam, support the backup pad through the steel pole to can make the bridge can be stably used when making the aftershock take place once more.

Preferably, the bridge deck mechanism comprises a bridge head plate, one side of the bridge head plate is provided with a bridge deck matched with the bridge head plate, the end part of the bridge deck is provided with a fixture block, and the fixture block is fixed with a connecting beam on the stabilizing mechanism through a first bolt; and limiting blocks fixed with the connecting beam are arranged on two sides of the clamping block. The bridge head plate can be convenient for be connected ground and decking through the bridgehead board that sets up, and the vehicle of being convenient for is current, uses through the cooperation of the fixture block that sets up and stopper for each decking can be dismantled and the installation, and then realizes the rapid Assembly of bridge.

Preferably, the stabilizing mechanism comprises a plurality of connecting beams, a plurality of transverse connecting beams are connected into a group of long beams, every two groups of parallel long beams are connected through a vertical beam, and two ends of each long beam are connected with end beams; and a plurality of supporting blocks on the supporting mechanism are fixed on the long beam. The arranged connecting beams are connected with each other to form a long beam, so that the function of stabilizing a plurality of bridge decks is achieved, and the bridge decks are stably connected after being installed; the vertical beams arranged are used for connecting long beams formed by the connecting beams together, so that the bridge is stable.

Preferably, the supporting mechanism comprises a supporting block fixed on the long beam, a guide groove is formed in the supporting block, a first limiting groove and a second limiting groove are respectively communicated with two ends of the guide groove, the first limiting groove and the second limiting groove are obliquely arranged, the oblique length of the first limiting groove is smaller than that of the second limiting groove, the second limiting groove is of an L-shaped structure, and the vertical height of the second limiting groove is equal to that from the guide rod to the slide rod. The supporting block can play a role in stabilizing the operation of the supporting mechanism, the guide rod can move according to a required track through the arranged guide groove, the guide rod can move conveniently through the matched use of the first limiting groove, the second limiting groove and the guide groove, and when the supporting plate needs to move towards the outer side of the long beam, the guide rod needs to move towards the first limiting groove from the guide groove; when the backup pad need move towards the inboard of long roof beam, need make the guide bar move from the position of guide way orientation second spacing groove, the in-process guide bar of removal can translate earlier, overturns again.

Preferably, the support mechanism further comprises a guide rod and the slide rod, the guide rod is matched with the guide groove, the first limit groove and the second limit groove, the guide rod is fixed on the side wall of the push rod, which is far away from the guide rod, is fixedly connected with a connecting rod, the end part of the connecting rod is rotatably connected with the slide rod, and the slide rod is perpendicular to the push rod; the bottom of the push rod is fixedly connected with a rotating rod, the rotating rod is clamped in a rotating groove, and the rotating groove is arranged in the supporting plate; the support plate is located between two vertical beams. After the guide rod moves to a position horizontal to the screw rod in the second limiting groove, the guide rod translates in the process, then the guide rod continues to move and rotate until the guide rod rotates for 90 degrees, and then the guide rod translates again; the guide rod and the rotating rod can be driven to move through the arranged push rod, when the guide rod moves, the guide rod is limited by the first limiting groove and the second limiting groove, the guide rod needs to move along with the positions of the first limiting groove and the second limiting groove in the moving process, the rotating rod needs to rotate, the rotating rod and the connecting rod rotate, and therefore when the sliding rod moves back and forth, the rotating rod and the connecting rod rotate;

preferably, the supporting mechanism further comprises a rod sleeve fixedly connected with the connecting rod, a screw rod is arranged inside the rod sleeve, the rod sleeve is rotatably connected with the screw rod through threads, a rod groove matched with the rod sleeve is arranged inside the supporting block, a hexagon bolt is connected to the end of the screw rod, and the hexagon bolt is connected to the supporting block through a bearing. The lead screw is rotated through the hexagon bolt that the drive set up and is made the lead screw rotate, and when the lead screw rotated, the lead screw passed through the screw thread and driven the rod cover and removed, and when the rod cover removed, the rod cover can drive the slide bar of fixing at its lateral wall and remove, because the slide bar is rectilinear sliding, and then when the lead screw rotated, the rod cover can not take place to rotate, and the rod cover can only be rectilinear movement, and at this moment, the slide bar was rectilinear movement along with the rod cover is synchronous.

Preferably, the base mechanism comprises a connecting sheet connected with the long beam on the stabilizing mechanism and a cross beam fixed below the connecting sheet, and the cross beam is provided with a plurality of through holes for reducing the mass of the cross beam; the cross beams and the connecting pieces are fixed through third bolts, every two cross beams are fixedly connected through second bolts, and two vertical stabilizing plates are fixed on the connecting pieces. All can with long roof beam and crossbeam and down tube fixed connection through the connection piece that sets up, and then realize the function of down tube convenient to detach and installation, connect the down tube through the steadying plate that sets up for the down tube is connected stably.

Preferably, the base mechanism further comprises diagonal rods arranged between the cross beam and the long beam on the stabilizing mechanism, one end of each diagonal rod is provided with an inner plate, the other end of each diagonal rod is provided with two outer plates, and the inner plates are matched with the outer plates; an inner plate is arranged between every two stabilizing plates, two outer plates are arranged on the outer sides of every two stabilizing plates, and the inner plate, the stabilizing plates and the outer plates are fixedly connected through limiting pins; and a reinforcing mechanism is fixed on the side wall of the cross beam through a reinforcing bolt. Through the inner panel and the planking of setting mutually support, and then realize that a plurality of down tube can be by quick installation and dismantlement, when natural disasters, the quick construction bridge of being convenient for plays the effect of quick rescue.

Preferably, the reinforcing mechanism comprises a reinforcing plate fixed with the cross beam, the top of the reinforcing plate is connected with a reinforcing pad, and the reinforcing pad is positioned below a gap at the joint of every two bridge deck plates; the reinforcing plate is provided with a reinforcing groove, and a reinforcing bolt is arranged in the reinforcing groove. The reinforcing plate is arranged to support the reinforcing pad, so that the reinforcing pad stabilizes the bridge deck plate, the supporting vehicle capable of being well supported by the bridge deck plate passes through, and the assembled bridge is stable.

The invention has the beneficial effects that:

(1) the supporting plate on the supporting mechanism is adjusted to the inner side of the connecting beam to form another bridge deck above the bridge deck plate, and the bridge deck is supported by steel rods under a new bridge deck formed by the supporting plate; when taking place earthquake, adjust the backup pad to the outside of tie-beam, support the backup pad through the steel pole to can make the bridge can be stably used when making the aftershock take place once more. The ground can be conveniently connected with the bridge deck through the arranged bridge head plate, the passing of vehicles is convenient, and each bridge deck can be disassembled and assembled through the matched use of the arranged fixture blocks and the limiting blocks, so that the rapid assembly of the bridge is realized; the arranged connecting beams are connected with each other to form a long beam, so that the function of stabilizing a plurality of bridge decks is achieved, and the bridge decks are stably connected after being installed; the vertical beams arranged are used for connecting long beams formed by the connecting beams together, so that the bridge is stable.

(2) The supporting block can play a role in stabilizing the operation of the supporting mechanism, the guide rod can move according to a required track through the arranged guide groove, the guide rod can move conveniently through the matched use of the first limiting groove, the second limiting groove and the guide groove, and when the supporting plate needs to move towards the outer side of the long beam, the guide rod needs to move towards the first limiting groove from the guide groove; when the backup pad need move towards the inboard of long roof beam, need make the guide bar move from the position of guide way orientation second spacing groove, the in-process guide bar of removal can translate earlier, overturns again. After the guide rod moves to a position horizontal to the screw rod in the second limiting groove, the guide rod translates in the process, then the guide rod continues to move and rotate until the guide rod rotates for 90 degrees, and then the guide rod translates again; the guide rod and the rotating rod can be driven to move through the arranged push rod, when the guide rod moves, the guide rod is limited by the first limiting groove and the second limiting groove, the guide rod needs to move along with the positions of the first limiting groove and the second limiting groove in the moving process, the rotating rod needs to rotate, the rotating rod and the connecting rod rotate, and therefore when the sliding rod moves back and forth, the rotating rod and the connecting rod rotate; the lead screw is rotated through the hexagon bolt that the drive set up and is made the lead screw rotate, and when the lead screw rotated, the lead screw passed through the screw thread and driven the rod cover and removed, and when the rod cover removed, the rod cover can drive the slide bar of fixing at its lateral wall and remove, because the slide bar is rectilinear sliding, and then when the lead screw rotated, the rod cover can not take place to rotate, and the rod cover can only be rectilinear movement, and at this moment, the slide bar was rectilinear movement along with the rod cover is synchronous.

(3) All can with long roof beam and crossbeam and down tube fixed connection through the connection piece that sets up, and then realize the function of down tube convenient to detach and installation, connect the down tube through the steadying plate that sets up for the down tube is connected stably. Through the inner panel and the planking of setting mutually support, and then realize that a plurality of down tube can be by quick installation and dismantlement, when natural disasters, the quick construction bridge of being convenient for plays the effect of quick rescue. The reinforcing plate is arranged to support the reinforcing pad, so that the reinforcing pad stabilizes the bridge deck plate, the supporting vehicle capable of being well supported by the bridge deck plate passes through, and the assembled bridge is stable.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is an enlarged view of the structure at B of FIG. 3 according to the present invention;

FIG. 5 is a schematic view of the connection of the lead screw and the rod sleeve of the present invention;

FIG. 6 is a bottom view of the present invention;

in the figure: 1. a bridge deck mechanism; 11. a bridge head plate; 12. a bridge deck; 13. a clamping block; 14. a first bolt; 15. a limiting block; 2. a support mechanism; 21. a support block; 22. a hexagon bolt; 23. a support plate; 24. a guide bar; 25. a guide groove; 26. a first limit groove; 27. a second limit groove; 28. a rod sleeve; 29. a screw rod; 210. a rod groove; 211. a slide bar; 212. a push rod; 213. a connecting rod; 214. a rotating rod; 215. rotating the groove; 3. a base mechanism; 31. a cross beam; 32. a second bolt; 33. a through hole; 34. connecting sheets; 35. a third bolt; 36. a spacing pin; 37. an outer plate; 38. a diagonal bar; 39. an inner plate; 310. a stabilizing plate; 4. a stabilizing mechanism; 41. an end beam; 42. a connecting beam; 43. erecting a beam; 5. a reinforcement mechanism; 51. a reinforcing plate; 52. reinforcing the cushion; 53. and (5) reinforcing the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, an assembled steel bridge comprises a bridge deck mechanism 1, a stabilizing mechanism 4 connected above the bridge deck mechanism 1, a supporting mechanism 2 connected to the stabilizing mechanism 4, a base mechanism 3 fixed at the bottom of the bridge deck mechanism 1, and a reinforcing mechanism 5 connected to the base mechanism 3 at the bottom of the bridge deck mechanism 1; the provided stabilizing mechanism 4 can play a role of stabilizing the bridge deck mechanism 1, the supporting mechanism 2 is arranged to support the whole bridge, the supporting plate 23 on the supporting mechanism 2 is adjusted to the inner side of the connecting beam 42 to form another bridge deck above the bridge deck 12 when flood happens, and the bridge deck is supported by steel rods under a new bridge deck formed by the supporting plate 23; when an earthquake occurs, the support plate 23 is adjusted to the outer side of the connecting beam 42, and the support plate 23 is supported by the steel rod, so that the bridge can be stably used when aftershock occurs again.

Specifically, the bridge deck mechanism 1 comprises a bridge head plate 11, a bridge deck plate 12 matched with the bridge head plate 11 is arranged on one side of the bridge head plate 11, a fixture block 13 is arranged at the end part of the bridge deck plate 12, and the fixture block 13 is fixed with a connecting beam 42 on the stabilizing mechanism 4 through a first bolt 14; and two sides of the fixture block 13 are provided with limit blocks 15 fixed with the connecting beam 42. The bridge head plate 11 can be convenient for be connected ground and decking 12 through the setting, and the passing of vehicle of being convenient for is used through the fixture block 13 that sets up and stopper 15's cooperation for each decking 12 can be dismantled and the installation, and then realizes the rapid Assembly of bridge.

Specifically, the stabilizing mechanism 4 comprises a plurality of connecting beams 42, the plurality of transverse connecting beams 42 are connected to form a group of long beams, each two groups of parallel long beams are connected through a vertical beam 43, and both ends of each long beam are connected with end beams 41; a plurality of supporting blocks 21 on the supporting mechanism 2 are fixed on the long beam. The arranged connecting beams 42 are connected with each other to form a long beam, so that the function of stabilizing a plurality of bridge decks 12 is achieved, and further, after the bridge decks 12 are installed, the connection of the bridge decks 12 is stable; the vertical beams 43 are arranged to connect the long beams formed by the connecting beams 42 together, so that the bridge is stable.

Specifically, the supporting mechanism 2 includes a supporting block 21 fixed on the long beam, a guide groove 25 is provided inside the supporting block 21, two ends of the guide groove 25 are respectively communicated with a first limiting groove 26 and a second limiting groove 27, the first limiting groove 26 and the second limiting groove 27 are both arranged in an inclined manner, the inclined length of the first limiting groove 26 is smaller than the inclined length of the second limiting groove 27, the second limiting groove 27 is in an L-shaped structure, and the vertical height of the second limiting groove 27 is equal to the vertical height from the guide rod 24 to the slide rod 211. The operation of the supporting mechanism 2 can be stabilized through the arranged supporting block 21, the guide rod 24 can move according to a required track through the arranged guide groove 25, the guide rod 24 can move conveniently through the matched use of the arranged first limiting groove 26, the second limiting groove 27 and the guide groove 25, and when the supporting plate 23 needs to move towards the outer side of the long beam, the guide rod 24 needs to move towards the position of the first limiting groove 26 from the guide groove 25; when the support plate 23 needs to be moved toward the inner side of the long beam, the guide rod 24 needs to be moved from the guide groove 25 to the position of the second limit groove 27, and the guide rod 24 can be translated and then turned over in the moving process.

Specifically, the support mechanism 2 further comprises a guide rod 24 and the sliding rod 211, the guide rod 24 is matched with the guide groove 25, the first limit groove 26 and the second limit groove 27, the guide rod 24 is fixed on the side wall of the push rod 212, which is far away from the guide rod 24, is fixedly connected with a connecting rod 213, the end part of the connecting rod 213 is rotatably connected with the sliding rod 211, and the sliding rod 211 is perpendicular to the push rod 212; the bottom of the push rod 212 is fixedly connected with a rotating rod 214, the rotating rod 214 is clamped in a rotating groove 215, and the rotating groove 215 is arranged in the support plate 23; the support plate 23 is located between two vertical beams 43. After the guide rod 24 moves to a position horizontal to the screw 29 in the second limit groove 27, the guide rod 24 translates in the process, and then the guide rod 24 continues to move and rotate until the guide rod 24 rotates 90 degrees, and then the guide rod 24 translates again; the guide rod 24 and the rotating rod 214 can be driven to move by the arranged push rod 212, when the guide rod 24 is limited by the first limiting groove 26 and the second limiting groove 27, the guide rod 24 needs to move along with the positions of the first limiting groove 26 and the second limiting groove 27 in the moving process, the rotating rod 214 needs to rotate, the rotating rod 214 and the connecting rod 213 rotate, and therefore when the sliding rod 211 moves back and forth, the rotating rod 214 and the connecting rod 213 rotate.

Specifically, the supporting mechanism 2 further includes a rod sleeve 28 fixedly connected to the connecting rod 213, a screw 29 is disposed inside the rod sleeve 28, the rod sleeve 28 is rotatably connected to the screw 29 through a thread, a rod groove 210 matched with the rod sleeve 28 is disposed inside the supporting block 21, a hexagon bolt 22 is connected to an end of the screw 29, and the hexagon bolt 22 is connected to the supporting block 21 through a bearing. The lead screw 29 is rotated by driving the hexagon bolt 22, when the lead screw 29 rotates, the lead screw 29 drives the rod sleeve 28 to move through threads, when the rod sleeve 28 moves, the rod sleeve 28 can drive the sliding rod 211 fixed on the side wall of the rod sleeve to move, and because the sliding rod 211 slides linearly, when the lead screw 29 rotates, the rod sleeve 28 cannot rotate, the rod sleeve 28 can only move linearly, and at the moment, the sliding rod 211 synchronously moves linearly along with the rod sleeve 28.

Specifically, the base mechanism 3 comprises a connecting piece 34 connected with a long beam on the stabilizing mechanism 4 and a cross beam 31 fixed below the connecting piece 34, and the cross beam 31 is provided with a plurality of through holes 33 for reducing the mass of the cross beam; the cross beams 31 and the connecting pieces 34 are fixed through third bolts 35, every two cross beams 31 are fixedly connected through second bolts 32, and two vertical stabilizing plates 310 are fixed on the connecting pieces 34. Can all be connected long roof beam and crossbeam 31 with down tube 38 fixed connection through the connection piece 34 that sets up, and then realize the function that down tube 38 is convenient for dismantle and install, connect down tube 38 through the stabilizer plate 310 that sets up for down tube 38 connects stably.

Specifically, the base mechanism 3 further comprises diagonal rods 38 arranged between the cross beam 31 and the long beam on the stabilizing mechanism 4, one end of each diagonal rod 38 is provided with an inner plate 39, the other end of each diagonal rod is provided with two outer plates 37, and the inner plates 39 are matched with the outer plates 37; an inner plate 39 is arranged between every two of the stabilizing plates 310, two outer plates 37 are arranged on the outer sides of every two of the stabilizing plates 310, and the inner plate 39, the stabilizing plates 310 and the outer plates 37 are fixedly connected through a limiting pin 36; the side wall of the cross beam 31 is fixed with a reinforcing mechanism 5 through a reinforcing bolt. Through the inner panel 39 and the planking 37 that set up mutually support, and then realize that a plurality of down tube 38 can be by quick installation and dismantlement, when natural disasters, the quick construction bridge of being convenient for plays the effect of quick rescue.

Specifically, the reinforcing mechanism 5 comprises a reinforcing plate 51 fixed to the cross beam 31, a reinforcing pad 52 is connected to the top of the reinforcing plate 51, and the reinforcing pad 52 is located below a gap at the joint of every two bridge deck plates 12; the reinforcing plate 51 is provided with a reinforcing groove 53, and a reinforcing bolt is arranged in the reinforcing groove 53. The reinforcing plate 51 is arranged to support the reinforcing pad 52, so that the reinforcing pad 52 stabilizes the bridge deck 12, the bridge deck 12 can well support vehicles to pass through, and the assembled bridge is stable.

When the device is used, when natural disasters occur or natural disasters are early warned, the supporting plates on the bridge can be adjusted according to actual conditions; when an earthquake comes, a road for emergency repair needs to be laid, materials need to be transported, after a bridge is laid, the bridge needs to be more stable, the bridge needs to resist aftershock, the supporting plate 23 needs to move towards the outer side of the long beam, the supporting plate 23 and the bridge are inclined, and then the supporting plate 23 is supported through the steel rod; the hexagon bolt 22 needs to be rotated, the hexagon bolt 22 and the lead screw 29 are fixed, the lead screw 29 can be rotated by rotating the hexagon bolt 22, when the lead screw 29 rotates, the lead screw 29 drives the rod sleeve 28 to move through threads, when the rod sleeve 28 moves, the rod sleeve 28 can drive the sliding rod 211 fixed on the side wall of the rod sleeve to move, as the sliding rod 211 moves, the sliding rod 211 drives the connecting rod 213 to move, as the guide rod 24 can move in the first limiting groove 26, the guide rod 24 can rotate reversely when moving, and the reverse rotation angle is 0-45 degrees; when the guide rod 24 rotates reversely, the push rod 212 connected with the guide rod 24 drives the support plate 23 to rotate reversely, and the reverse angle of the support plate 23 is 0-45 degrees; the angle of the supporting plate 23 can be adjusted according to actual conditions, the side wall of the supporting plate 23 is connected with a steel rod, and the steel rod is abutted to the ground, so that the supporting plate 23 has a supporting force for a bridge; the bridge also has supporting force, so that the bridge is more stable. Before flood disasters come, when weather forecast is heavy rain, the bridge deck needs to be lifted so as to play an emergency function when water is generated, at the moment, the hexagon bolt 22 needs to be rotated, the hexagon bolt 22 and the lead screw 29 are fixed, the lead screw 29 can be rotated due to the rotation of the hexagon bolt 22, when the lead screw 29 rotates, the lead screw 29 drives the rod sleeve 28 to move through threads, when the rod sleeve 28 moves, the rod sleeve 28 drives the sliding rod 211 fixed on the side wall of the rod sleeve to move, the sliding rod 211 drives the connecting rod 213 to move due to the movement of the sliding rod 28, as the guide rod 24 can move in the second limiting groove 27, the guide rod 24 can be reversed when moving, and the reversal angle is 90 degrees, namely, the guide rod 24 drives the push rod 212 to turn 90 degrees so as to synchronously rotate with the rotating rod 214 connected with the push rod 212, and as the cross section of the rotating rod 214 is of a square structure, the rotating groove 215 is also of a square structure, so that when the rotating rod 214 rotates, the rotating rod 214 does not rotate inside the rotating groove 215, the rotating rod 214 drives the supporting plate 23 to synchronously rotate by 90 degrees, and after the supporting plate 23 rotates by 90 degrees, the surface of the supporting plate 23 is fixedly supported by the steel rod. When the flood comes, the bridge can be used as a bridge for emergency transportation.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An assembled steel bridge is characterized by comprising a bridge deck mechanism (1), wherein a stabilizing mechanism (4) is connected above the bridge deck mechanism (1), a supporting mechanism (2) matched with the stabilizing mechanism (4) is connected onto the stabilizing mechanism (4), a base mechanism (3) is fixed at the bottom of the bridge deck mechanism (1), and a reinforcing mechanism (5) connected with the base mechanism (3) is arranged at the bottom of the bridge deck mechanism (1);

the bridge deck mechanism (1) comprises a bridge head plate (11), one side of the bridge head plate (11) is provided with a bridge deck plate (12) matched with the bridge head plate, the end part of the bridge deck plate (12) is provided with a clamping block (13), and the clamping block (13) is fixed with a connecting beam (42) on the stabilizing mechanism (4) through a first bolt (14); and limiting blocks (15) fixed with the connecting beam (42) are arranged on two sides of the clamping block (13).

2. An assembled steel bridge according to claim 1, characterized in that the stabilizing means (4) comprises several connecting beams (42), several transverse connecting beams (42) are connected into a set of long beams, each two sets of parallel long beams are connected by vertical beams (43), and both ends of the long beams are connected with end beams (41); and a plurality of supporting blocks (21) on the supporting mechanism (2) are fixed on the long beam.

3. The assembled steel bridge girder according to claim 2, wherein the supporting mechanism (2) comprises a supporting block (21) fixed on the long girder, a guide groove (25) is formed inside the supporting block (21), a first limiting groove (26) and a second limiting groove (27) are respectively communicated with two ends of the guide groove (25), the first limiting groove (26) and the second limiting groove (27) are both obliquely arranged, the oblique length of the first limiting groove (26) is smaller than that of the second limiting groove (27), the second limiting groove (27) is of an L-shaped structure, and the vertical height of the second limiting groove (27) is equal to that of a guide rod (24) to a sliding rod (211).

4. The assembled steel bridge girder according to claim 3, wherein the supporting mechanism (2) further comprises a guide rod (24) and the slide rod (211), the guide rod (24) is matched with the guide groove (25), the first limit groove (26) and the second limit groove (27), the guide rod (24) is fixed on the side wall of the push rod (212), the side wall of the push rod (212) departing from the guide rod (24) is fixedly connected with a connecting rod (213), the end of the connecting rod (213) is rotatably connected with the slide rod (211), and the slide rod (211) is perpendicular to the push rod (212); the bottom of the push rod (212) is fixedly connected with a rotating rod (214), the rotating rod (214) is clamped in a rotating groove (215), and the rotating groove (215) is arranged in the supporting plate (23); the support plate (23) is located between two vertical beams (43).

5. The assembled steel bridge according to claim 4, wherein the supporting mechanism (2) further comprises a rod sleeve (28) fixedly connected with the connecting rod (213), a screw rod (29) is arranged inside the rod sleeve (28), the rod sleeve (28) is rotatably connected with the screw rod (29) through threads, a rod groove (210) matched with the rod sleeve (28) is arranged inside the supporting block (21), a hexagonal bolt (22) is connected to the end of the screw rod (29), and the hexagonal bolt (22) is connected to the supporting block (21) through a bearing.

6. The assembled steel bridge girder according to claim 5, wherein the base mechanism (3) comprises a connecting piece (34) connected with the long girder on the stabilizing mechanism (4), and a cross beam (31) fixed below the connecting piece (34), and the cross beam (31) is provided with a plurality of through holes (33) for reducing the mass of the cross beam; the cross beams (31) and the connecting pieces (34) are fixed through third bolts (35), every two cross beams (31) are fixedly connected through second bolts (32), and two vertical stabilizing plates (310) are fixed on the connecting pieces (34).

7. An assembled steel bridge according to claim 6, characterized in that the said base means (3) further comprises diagonal rods (38) arranged between the cross beam (31) and the long beam of the stabilizing means (4), and each of the said diagonal rods (38) is provided with an inner plate (39) at one end and two outer plates (37) at the other end, and the said inner plate (39) and outer plates (37) are matched; an inner plate (39) is arranged between every two stabilizing plates (310), two outer plates (37) are arranged on the outer sides of every two stabilizing plates (310), and the inner plate (39), the stabilizing plates (310) and the outer plates (37) are fixedly connected through limiting pins (36); and a reinforcing mechanism (5) is fixed on the side wall of the cross beam (31) through a reinforcing bolt.

8. An assembled steel bridge according to claim 7, wherein the reinforcing means (5) comprises a reinforcing plate (51) fixed to the cross beam (31), a reinforcing pad (52) is connected to the top of the reinforcing plate (51), and the reinforcing pad (52) is located below the gap at the joint of every two bridge deck plates (12); the reinforcing plate (51) is provided with a reinforcing groove (53), and a reinforcing bolt is arranged in the reinforcing groove (53).