CN112359710A

CN112359710A - Steel construction concatenation bridge

Info

Publication number: CN112359710A
Application number: CN202011455690.1A
Authority: CN
Inventors: 秦宇; 陈辰
Original assignee: Huainan Yuantai Construction And Installation Engineering Co ltd
Current assignee: Huainan Yuantai Construction And Installation Engineering Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-02-12

Abstract

The invention relates to the technical field of bridges, in particular to a steel structure spliced bridge. Steel construction concatenation bridge includes: four bridge piers; the spliced bridge plates are arranged at the tops of the four piers; the two arched beams are fixedly arranged at the tops of the spliced bridge plates; the first connecting seats are fixedly arranged on the inner walls of the two arched beams respectively; the suspension ropes are respectively arranged between the two arched beams and the spliced bridge plate; the second connecting seats are respectively and fixedly sleeved at the top ends of the suspension ropes, and the second connecting seats are respectively and fixedly connected with the first connecting seats. The steel structure spliced bridge provided by the invention has the advantages of time-saving sling installation and relatively convenient and fast operation.

Description

Steel construction concatenation bridge

Technical Field

The invention relates to the technical field of bridges, in particular to a steel structure spliced bridge.

Background

The steel structure spliced bridge is a bridge using steel as a main building material, has high strength and high rigidity, can reduce the height and the dead weight of the bridge relative to a concrete bridge, is manufactured in a factory, spliced in a construction site, short in construction period, convenient to process and free from seasonal influence, and is widely applied to China.

However, the installation of the suspension rod or suspension cable for connecting the arched girder and the bridge slab on the traditional steel structure spliced bridge is laborious, and especially when the suspension rod or suspension cable is tightened and straightened, the operation is more complicated and time-consuming.

Therefore, it is necessary to provide a steel structure spliced bridge to solve the above technical problems.

Disclosure of Invention

The invention solves the technical problem of providing a steel structure spliced bridge which is time-saving in sling installation and relatively convenient and fast to operate.

In order to solve the technical problem, the invention provides a steel structure spliced bridge, which comprises: four bridge piers; the spliced bridge plates are arranged at the tops of the four piers; the two arched beams are fixedly arranged at the tops of the spliced bridge plates; the first connecting seats are fixedly arranged on the inner walls of the two arched beams respectively; the suspension ropes are respectively arranged between the two arched beams and the spliced bridge plate; the second connecting seats are respectively and fixedly sleeved at the top ends of the slings and are respectively and fixedly connected with the first connecting seats; the fixing seats are all fixedly arranged at the top of the spliced bridge plate; the fixed sleeves are fixedly sleeved at the bottom ends of the suspension ropes respectively; the quick fixing device comprises a plurality of quick fixing mechanisms, wherein the quick fixing mechanisms are arranged on the fixing seats respectively, and the quick fixing mechanisms are used for fixing the fixing sleeves.

Preferably, any one quick fixed establishment all includes first circular slot, second circular slot, rotates pipe, worm wheel, fixed case and worm, first circular slot is seted up the top of first connecting seat, the second circular slot is seted up on the bottom inner wall of first circular slot, it installs to rotate the pipe rotation in first circular slot, fixed sleeve is located rotate in the pipe, just fixed sleeve with rotate pipe threaded connection, the fixed cover of worm wheel is established rotate on the pipe, fixed case fixed mounting be in on one side outer wall of fixing base, the worm rotates and installs in the fixed case, one side of worm wheel extends to in the fixed case and with the worm meshes mutually.

Preferably, fixed mounting has the dead lever on one side outer wall of fixed sleeving, fixed mounting has the lug on one side outer wall of fixing base, slidable mounting has spacing inserted bar on the dead lever, the slot has been seted up at the top of lug, the bottom of spacing inserted bar extends to in the slot.

Preferably, the outer wall of the rotating circular tube is fixedly sleeved with a bearing, and the outer ring of the bearing is fixedly connected with the inner wall of the first circular groove.

Preferably, an internal thread is formed on the inner wall of the rotating circular tube, an external thread is formed on the outer wall of the fixing sleeve, and the internal thread and the external thread are screwed together.

Preferably, the fixed box is close to an avoidance hole is formed in the outer wall of one side of the sling, and the worm wheel penetrates through the avoidance hole and is movably connected with the inner wall of the avoidance hole.

Preferably, fixed sleeving's bottom fixed mounting has the fixed block, still be provided with supplementary locking mechanism on the fixing base, supplementary locking mechanism includes two rectangular channels, two clamp splices and two screw rods, two the rectangular channel is all seted up on the inner wall of second circular slot, and two the rectangular channel symmetry sets up, two the clamp splice is sliding mounting respectively two in the rectangular channel, two the screw rod is respectively threaded mounting two on the one side inner wall that the rectangular channel was kept away from each other, two the one end that the screw rod was kept away from each other all extends to the outside of fixing base, two the one end that the screw rod is close to each other is respectively with two the clamp splice rotates to be connected.

Preferably, all seted up a plurality of first anti-skidding burr on the both sides inner wall of fixed block, two a plurality of second anti-skidding burr has all been seted up on the one side outer wall that the clamp splice is close to each other.

Preferably, the top inner wall and the bottom inner wall of the rectangular groove are both provided with limiting sliding grooves, the top and the bottom of the clamping block are both fixedly provided with limiting sliding blocks, and the two limiting sliding blocks are respectively in sliding connection with the two limiting sliding grooves.

Preferably, two all seted up the internal thread hole on the one side inner wall that the rectangular channel kept away from each other, two the screw rod all runs through correspondingly the internal thread hole and with corresponding the inner wall in internal thread hole closes, two hexagonal socket head, two have all been seted up to the one end that the screw rod was kept away from each other fixed circular slot, two have all been seted up on the one side outer wall that the clamp splice was kept away from each other, two the one end that the screw rod was close to each other all extends to corresponding in the fixed circular slot and with corresponding the inner wall rotation of fixed circular slot is connected.

Compared with the prior art, the steel structure spliced bridge provided by the invention has the following beneficial effects:

the invention provides a steel structure spliced bridge, which can be used for quickly fixing, straightening and tightening a sling for connecting a spliced bridge deck and an arched beam by arranging a fixed seat with a quick fixing mechanism, is simple to operate and can greatly reduce the construction complexity and the construction time; through the setting of fixed block and supplementary locking mechanical system, can further form fixedly to the hoist cable, increase hoist cable fixed reliability.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of a steel structure spliced bridge provided by the invention;

FIG. 2 is an enlarged schematic view of portion A shown in FIG. 1;

FIG. 3 is an enlarged schematic view of portion B shown in FIG. 2;

FIG. 4 is a top cross-sectional view of the holding tank shown in FIG. 2;

FIG. 5 is a schematic structural diagram of a second embodiment of the spliced bridge with a steel structure provided by the invention;

fig. 6 is an enlarged schematic view of the portion C shown in fig. 5.

Reference numbers in the figures: 1. a bridge pier; 2. splicing the bridge plates; 3. an arched beam; 4. a first connecting seat; 5. a sling; 6. a second connecting seat; 7. a fixed seat; 8. a first circular groove; 9. a second circular groove; 10. rotating the circular tube; 11. fixing the sleeve; 12. a worm gear; 13. a fixed box; 14. a worm; 15. fixing the rod; 16. a bump; 17. a limiting inserted rod; 18. a slot; 19. a fixed block; 20. a rectangular groove; 21. a clamping block; 22. a screw.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

First embodiment

Referring to fig. 1 to 4, in a first embodiment of the present invention, a steel structure spliced bridge includes: four piers 1; the spliced bridge plates 2 are arranged at the tops of the four piers 1; the two arched girders 3 are both fixedly arranged at the top of the spliced bridge plate 2; the first connecting seats 4 are respectively fixedly arranged on the inner walls of the two arched beams 3; the suspension ropes 5 are respectively arranged between the two arched girders 3 and the spliced bridge deck 2; the second connecting seats 6 are fixedly sleeved at the top ends of the slings 5 respectively, and the second connecting seats 6 are fixedly connected with the first connecting seats 4 respectively; the fixing seats 7 are all fixedly arranged at the top of the splicing bridge plate 2; the fixed sleeves 11 are respectively fixedly sleeved at the bottom ends of the suspension ropes 5; a plurality of quick fixed establishment, it is a plurality of quick fixed establishment sets up respectively in a plurality of on the fixing base 7, it is a plurality of quick fixed establishment is used for fixing a plurality of fixed sleeve 11.

Any one of the quick fixing mechanisms comprises a first circular groove 8, a second circular groove 9, a rotating circular groove 10, a worm wheel 12, a fixing box 13 and a worm 14, wherein the first circular groove 8 is arranged at the top of the first connecting seat 4, the second circular groove 9 is arranged on the inner wall of the bottom of the first circular groove 8, the rotating circular groove 10 is rotatably arranged in the first circular groove 8, the fixing sleeve 11 is positioned in the rotating circular groove 10, the fixing sleeve 11 is in threaded connection with the rotating circular groove 10, the worm wheel 12 is fixedly sleeved on the rotating circular groove 10, the fixing box 13 is fixedly arranged on the outer wall of one side of the fixing seat 7, the worm 14 is rotatably arranged in the fixing box 13, one side of the worm wheel 12 extends into the fixing box 13 and is meshed with the worm 14, and the worm 14 is matched with the worm wheel 12 to drive the fixing sleeve 11 to rotate, and the locking of the fixing sleeve 11 is formed by the self-locking property of the worm 14 and the worm wheel 12 when the worm 14 is not rotated.

Fixed mounting has dead lever 15 on one side outer wall of fixed sleeving 11, fixed mounting has lug 16 on one side outer wall of fixing base 7, slidable mounting has spacing inserted bar 17 on dead lever 15, slot 18 has been seted up at lug 16's top, the bottom of spacing inserted bar 17 extends to in the slot 18, spacing inserted bar 17 plays and carries out spacing effect to fixed sleeving 11, guarantees that fixed sleeving 11 can only be perpendicular up-and-down motion.

The outer wall of the rotating circular tube 10 is fixedly sleeved with a bearing, the outer ring of the bearing is fixedly connected with the inner wall of the first circular groove 8, and the bearing plays a role in maintaining the rotation of the rotating circular tube 10.

An internal thread is formed on the inner wall of the rotating circular tube 10, an external thread is formed on the outer wall of the fixing sleeve 11, the internal thread and the external thread are screwed together, and the fixing sleeve 11 is driven to move downwards through the screwing effect of the internal thread and the external thread in the rotating process of the rotating circular tube 10.

The fixed box 13 is close to the avoidance hole has been seted up on the one side outer wall of hoist cable 5, worm wheel 12 runs through the avoidance hole and with the inner wall swing joint in avoidance hole, the one side of seting up the worm wheel 12 of avoidance hole is convenient for enter into fixed box 13 and mesh with worm 14, and the allen has been seted up to the one end of worm 14.

In this embodiment:

the second connecting seat 6 is fixedly connected with the first connecting seat 4 through a plurality of bolts; the top of the fixed rod 15 is provided with a limit sliding hole matched with the limit inserted rod 17, and the limit inserted rod 17 penetrates through the limit sliding hole and is in sliding connection with the inner wall of the limit sliding hole;

when the sling 5 is installed, the second connecting seat 6 at the top end of the sling 5 is fixedly connected with the corresponding first connecting seat 4 on the arched beam 3 by using a plurality of bolts, then the fixing sleeve 11 at the bottom end of the sling 5 is aligned with the corresponding rotating circular tube 10 and is inserted into and kept vertical, then the limiting inserted rod 17 penetrates through the limiting slide hole on the fixing rod 15, and the bottom end of the limiting inserted rod 17 is inserted into the slot 18 on the lug 16, so that the fixing sleeve 11 can be reliably limited, then the worm 14 is rotated by a tool, the worm 14 rotates to drive the worm wheel 12 to rotate, and then the rotating circular tube 10 is driven to rotate, in the rotating process of the rotating circular tube 10, the internal thread on the inner wall of the rotating circular tube 10 and the external thread on the fixing sleeve 11 start to be screwed, and the fixing sleeve 11 can vertically move downwards due to the limiting effect of the limiting inserted rod 17, thus, with the continuous rotation of the worm 14, the sling 5 can be gradually straightened and tightened;

after the suspension cable 5 is straightened and tightened, the worm 14 stops rotating, and the worm 14 and the worm wheel 12 have the self-locking characteristic, so that the rotating circular tube 10 can not rotate reversely, and the tightening state of the suspension cable 5 can be further ensured.

the invention provides a steel structure spliced bridge, which can be used for quickly fixing, straightening and tightening a sling 5 for connecting a spliced bridge deck 2 and an arched beam 3 by arranging a fixed seat 7 with a quick fixing mechanism, is simple to operate, and can greatly reduce the construction complexity and the construction time.

Second embodiment:

based on the steel structure splicing bridge provided by the first embodiment of the application, the second embodiment of the application provides another steel structure splicing bridge. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.

The second embodiment of the present invention will be further described with reference to the drawings and the following description.

Referring to fig. 5-6, the steel structure spliced bridge further includes a fixing block 19 and an auxiliary locking mechanism, the fixed block 19 is fixedly arranged at the bottom end of the fixed sleeve 11, the auxiliary locking mechanism is arranged in the fixed seat 7, the auxiliary locking mechanism comprises two rectangular grooves 20, two clamping blocks 21 and two screw rods 22, the two rectangular grooves 20 are arranged on the inner wall of the second circular groove 9, and two rectangular channel 20 symmetry sets up, two clamp splice 21 is sliding mounting respectively two in the rectangular channel 20, two screw rod 22 is respectively threaded mounting two on the one side inner wall that rectangular channel 20 kept away from each other, two the one end that screw rod 22 kept away from each other all extends to the outside of fixing base 7, two the one end that screw rod 22 is close to each other respectively with two the clamp splice 21 rotates and is connected.

All seted up a plurality of first anti-skidding burr on the both sides inner wall of fixed block 19, two a plurality of second anti-skidding burr has all been seted up on the one side outer wall that clamp splice 21 is close to each other, and first anti-skidding burr and second anti-skidding burr set up frictional force between multiplicable fixed block 19 and two clamp splices 21.

All seted up spacing spout on the top inner wall of rectangular channel 20 and the bottom inner wall, the equal fixed mounting limiting slide block in top and the bottom of clamp splice 21, two limiting slide block respectively with two limiting slide groove sliding connection, limiting slide slides spacing limiting slide block for clamp splice 21 keeps lateral sliding.

Two all seted up the internal thread hole on the one side inner wall that rectangular channel 20 kept away from each other, two screw rod 22 all runs through correspondingly the internal thread hole and with corresponding the inner wall in internal thread hole closes soon mutually, two hexagonal groove in the one end that screw rod 22 kept away from each other has all been seted up, two fixed circular slot has all been seted up on the one side outer wall that clamp splice 21 kept away from each other, two the one end that screw rod 22 was close to each other all extends to corresponding in the fixed circular slot and with corresponding the inner wall rotation of fixed circular slot is connected.

In this embodiment:

through the arrangement of the fixing block 19 and the auxiliary locking mechanism, the auxiliary locking mechanism can lock the fixing block 19, so that the further fixing of the fixing sleeve 11 is indirectly realized;

after hoist cable 5 tightened, the bottom of fixed sleeving 11 can enter into second circular slot 9, later clockwise two screw rods 22 of rotation in proper order through the use of the instrument, screw rod 22 pivoted in-process can be close to fixed block 19 gradually, and at the drive of screw rod 22, clamp splice 21 can enter into second circular slot 9 from rectangular channel 20, finally, clamp splice 21 can with fixed block 19 in close contact with, a plurality of second anti-skidding dimpled grains that set up on clamp splice 21 can with a plurality of first anti-skidding dimpled grains interlock on the fixed block 19, increase the frictional force between fixed block 19 and the clamp splice 21, can be indirect like this form further locking to fixed sleeving 11, strengthen the fixed reliability of fixed sleeving 11.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a steel construction concatenation bridge which characterized in that includes: four piers (1); the splicing bridge plates (2) are arranged at the tops of the four pieces of the bridge plates (1); the arched beams (3) are fixedly arranged at the tops of the spliced bridge plates (2); the first connecting seats (4) are respectively and fixedly arranged on the inner walls of the two arched beams (3);

slings (5) are respectively arranged between the two arched beams (3) and the spliced bridge plate (2); the second connecting seats (6) are fixedly sleeved at the top ends of the slings (5) respectively, and the second connecting seats (6) are fixedly connected with the first connecting seats (4) respectively; the fixed seats (7) are fixedly arranged at the top of the splicing bridge plate (2); the fixed sleeves (11) are respectively fixedly sleeved at the bottom ends of the slings (5); the quick fixing mechanisms are respectively arranged on the plurality of fixing seats (7) and are used for fixing the plurality of fixing sleeves (11).

2. The steel structure spliced bridge of claim 1, wherein any one of the quick fixing mechanisms comprises a first circular groove (8), a second circular groove (9), a rotating circular pipe (10), a worm wheel (12), a fixing box (13) and a worm (14), the first circular groove (8) is formed in the top of the first connecting seat (4), the second circular groove (9) is formed in the inner wall of the bottom of the first circular groove (8), the rotating circular pipe (10) is rotatably installed in the first circular groove (8), the fixing sleeve (11) is located in the rotating circular pipe (10), the fixing sleeve (11) is in threaded connection with the rotating circular pipe (10), the worm wheel (12) is fixedly sleeved on the rotating circular pipe (10), the fixing box (13) is fixedly installed on the outer wall of one side of the fixing seat (7), the worm (14) is rotatably installed in the fixed box (13), and one side of the worm wheel (12) extends into the fixed box (13) and is meshed with the worm (14).

3. The spliced bridge with the steel structure as claimed in claim 2, wherein a fixing rod (15) is fixedly mounted on the outer wall of one side of the fixing sleeve (11), a convex block (16) is fixedly mounted on the outer wall of one side of the fixing seat (7), a limiting inserted rod (17) is slidably mounted on the fixing rod (15), a slot (18) is formed in the top of the convex block (16), and the bottom end of the limiting inserted rod (17) extends into the slot (18).

4. The spliced bridge with steel structures as claimed in claim 2, wherein the outer wall of the rotating circular tube (10) is fixedly sleeved with a bearing, and the outer ring of the bearing is fixedly connected with the inner wall of the first circular groove (8).

5. The spliced bridge with the steel structure as claimed in claim 2, wherein the inner wall of the rotating circular tube (10) is provided with an internal thread, the outer wall of the fixed sleeve (11) is provided with an external thread, and the internal thread is screwed with the external thread.

6. The steel structure spliced bridge of claim 2, wherein an avoiding hole is formed in the outer wall of one side, close to the sling (5), of the fixed box (13), and the worm wheel (12) penetrates through the avoiding hole and is movably connected with the inner wall of the avoiding hole.

7. The spliced bridge of steel structures as claimed in claim 1, wherein a fixing block (19) is fixedly installed at the bottom end of the fixing sleeve (11), the fixed seat (7) is also provided with an auxiliary locking mechanism, the auxiliary locking mechanism comprises two rectangular grooves (20), two clamping blocks (21) and two screw rods (22), the two rectangular grooves (20) are arranged on the inner wall of the second circular groove (9), and two rectangular channel (20) symmetry sets up, two clamp splice (21) slidable mounting respectively is two in rectangular channel (20), two screw rod (22) threaded mounting respectively is two on the one side inner wall that rectangular channel (20) kept away from each other, two the one end that screw rod (22) kept away from each other all extends to the outside of fixing base (7), two the one end that screw rod (22) are close to each other respectively with two clamp splice (21) rotate and are connected.

8. The spliced bridge with steel structures as claimed in claim 7, wherein the inner walls of the two sides of the fixing block (19) are provided with a plurality of first anti-skid ribs, and the outer wall of one side of the two clamping blocks (21) close to each other is provided with a plurality of second anti-skid ribs.

9. The spliced bridge with the steel structure as claimed in claim 7, wherein the top inner wall and the bottom inner wall of the rectangular groove (20) are both provided with a limiting sliding groove, the top and the bottom of the clamping block (21) are both fixedly provided with a limiting sliding block, and the two limiting sliding blocks are respectively connected with the two limiting sliding grooves in a sliding manner.

10. The spliced bridge with the steel structure as claimed in claim 7, wherein the inner wall of one side of the rectangular grooves (20) far away from each other is provided with an internal threaded hole, the two screw rods (22) penetrate through the corresponding internal threaded holes and are screwed with the corresponding inner wall of the internal threaded hole, one ends of the two screw rods (22) far away from each other are provided with inner hexagonal grooves, the outer wall of one side of the two clamping blocks (21) far away from each other is provided with a fixed circular groove, and one ends of the two screw rods (22) close to each other extend into the corresponding fixed circular groove and are rotatably connected with the corresponding inner wall of the fixed circular groove.