CN115450079B

CN115450079B - Connecting structure of environment-friendly steel structure cantilever pedestrian bridge and main beam and construction method

Info

Publication number: CN115450079B
Application number: CN202211277010.0A
Authority: CN
Inventors: 牟三山; 钟翔; 郑轶丽; 唐贵伟; 邓雪峰
Original assignee: Chengdu Municipal Engineering Design And Research Institute Co ltd
Current assignee: Chengdu Municipal Engineering Design And Research Institute Co ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-05-09
Anticipated expiration: 2042-10-18
Also published as: CN115450079A

Abstract

The utility model relates to an environment-friendly steel structure cantilever pedestrian bridge and girder connection structure, which comprises an overhead bridge, wherein the lower part of the overhead bridge is used for setting a ground road, the two sides of the ground road are provided with ground non-motor vehicle lanes, the overhead bridge comprises a girder, the girder is arched, the girder is connected with a pedestrian bridge, the pedestrian bridge comprises a middle horizontal section and a climbing section, and the distance from the middle horizontal section to the ground road is larger than the minimum vertical distance between the lower surface of the girder and the ground road; the middle horizontal section is positioned right below the arched middle part of the main beam; the climbing sections are positioned at two sides of the viaduct and are arranged along the direction of the viaduct; the middle horizontal section is connected with climbing sections on two sides of the viaduct; one end of the climbing section is supported on the ground along the extending direction of the viaduct; the other end is as high as the middle horizontal section; the middle horizontal section and/or the climbing section are/is fixedly connected with the main beam through a connecting component. The pedestrian bridge has the advantages of reducing the height of the pedestrian bridge arranged along with the viaduct and being convenient to pass.

Description

Connecting structure of environment-friendly steel structure cantilever pedestrian bridge and main beam and construction method

Technical Field

The application relates to the technical field of environment-friendly steel structure pedestrian bridges, in particular to an environment-friendly steel structure cantilever pedestrian bridge and main beam connecting structure and a construction method.

Background

As the pressure born by the pedestrian bridge is smaller and larger load is not needed, the pedestrian bridge can be manufactured by adopting a steel structure, and meanwhile, the pedestrian bridge has the advantages of light weight, less material consumption and smaller influence on the environment, and is environment-friendly.

In the related art, more viaducts are used in urban planning, the viaduct is a bridge for solving urban traffic jams, ground roads are arranged below the viaduct, vehicles can travel on the ground roads on the viaduct, the viaduct runs perpendicular to the ground roads, so that the viaduct and the vehicles on the ground roads cannot mutually influence each other, a pedestrian bridge of a non-motor vehicle lane can be arranged in part of the viaduct along the viaduct direction, so that the non-motor vehicle and pedestrians can conveniently cross the ground roads from the upper part of the ground roads, the influence of the pedestrians or the non-motor vehicles on the running speed of the vehicles on the ground roads is reduced, and especially, when the occupied time of the pedestrians and the non-motor vehicles is more for a road opening with larger people flow, the traffic jam is more easily caused due to insufficient time of the vehicles, and therefore, the non-motor vehicle lanes are arranged on the edges of the viaduct by increasing the width for the pedestrians or the non-motor vehicles to pass.

However, in the above structure, the pedestrian bridge for passing pedestrians or non-motor vehicles is arranged along the trend of the viaduct, so that the height of the pedestrian bridge is large, and the pedestrians or non-motor vehicles are difficult to pass.

Disclosure of Invention

In order to reduce the height of a pedestrian bridge arranged along with a viaduct and facilitate traffic, the application provides an environment-friendly steel structure cantilever pedestrian bridge and girder connecting structure and a construction method.

The application provides an environmental protection type steel structure cantilever manway and girder connection structure adopts following technical scheme:

the utility model provides an environment-friendly steel structure cantilever pedestrian bridge and girder connection structure, includes the overpass, the below of overpass is used for setting up ground road and the both sides of ground road are provided with ground non-motorized vehicle way, the overpass includes the girder, the girder is the bow-shaped, the connection of girder has the pedestrian bridge, the pedestrian bridge includes middle horizontal segment and climbing section, the distance of middle horizontal segment to ground road is greater than the minimum vertical distance of girder lower surface and ground road; the middle horizontal section is positioned right below the arc-shaped middle part of the main beam; the climbing sections are positioned at two sides of the viaduct and are arranged along the direction of the viaduct; the middle horizontal section is connected with climbing sections on two sides of the viaduct; one end of the climbing section is supported on the ground along the extending direction of the viaduct; the other end is as high as the middle horizontal section; the middle horizontal section and/or the climbing section are/is fixedly connected with the main beam through a connecting component.

By adopting the technical scheme, when the pedestrian bridge is used, the middle horizontal section in the pedestrian bridge is arranged below the main beam, and the main beam is arched, so that the maximum height of a vehicle passing through a ground road below the main beam is required to be the height from the edge of the ground road to the lower surface of the main beam, and the height from the middle part of the main beam to the lower surface of the ground is larger, therefore, when the middle horizontal section is arranged below the main beam and the distance between the middle horizontal section and the ground road is larger than the minimum vertical distance between the lower surface of the main beam and the ground road, the middle horizontal section can be reduced under the condition of ensuring the normal passing of the ground road, and the middle horizontal section is connected with climbing sections positioned at two sides of the viaduct, so that the maximum height of the climbing sections is reduced, and the pedestrian bridge is convenient to pass; meanwhile, the overhead bridge can walk from one side of the overhead bridge to the other side of the overhead bridge along the middle horizontal section, so that the overhead bridge can be used for crossing the action of the overhead bridge road, and when the overhead bridge is arranged in a region with large pedestrian flow, motor vehicles, non-motor vehicles and pedestrians are separated, the driving safety is improved, and meanwhile, the passing efficiency of vehicles is improved.

Preferably, the middle part of the climbing section is connected with a downhill section; one end of the downhill section, which is far away from the climbing section, is connected with a ground non-motor vehicle lane; and a middle separation fence is arranged between the positions on the climbing section, which are connected with the downhill section and the middle horizontal section.

Through adopting above-mentioned technical scheme, the downhill path section is connected at the middle part of climbing section to be provided with middle separation fence on the climbing section, when the non-motor vehicle that changes to the left along the climbing section, can be along the climbing section that is provided with middle separation fence down, accomplish the left turn from downhill path section to ground non-motor vehicle lane again, reduce the distance that the non-motor vehicle walked because of along the pedestrian bridge.

Preferably, the main beam comprises a body and side edges; the side edges are arranged at the upper part of the side wall of the body; the middle part position of climbing section extends to the below of side edge by being located the position that the side edge was kept away from body one side, climbing section is close to the lateral wall setting of body.

Through adopting above-mentioned technical scheme, when the middle part of climbing section extends to the side along the below by the position that the side was kept away from in one side of body, the climbing section can be close to the lateral wall position of body, makes the climbing section can be located the below of side edge simultaneously to can make the connection when being connected the last body or the side edge of climbing section and girder.

Preferably, the connecting assembly comprises an upper screw, a lower screw and an intermediate nut; the upper screw is hinged to the lower surface of the side edge, the lower screw is hinged to the climbing section, two ends of the middle nut are connected with the upper screw and the lower screw in a threaded mode, and threads at two ends of the middle nut are opposite in screwing direction.

Through adopting above-mentioned technical scheme, go up the screw rod and articulate the lower surface at the side, lower screw rod articulates on climbing section, then the rethread intermediate nut is connected last screw rod and lower screw rod, makes intermediate nut can adjust the distance between screw rod and the lower screw rod, can make the height of climbing section adjust through rotating intermediate nut.

Preferably, the connection assembly comprises a cantilever bar and an adjustment seat; the adjusting seat is fixed on the side wall of the body; one end of the cantilever rod is fixed on the lower surface of the climbing section, the other end of the cantilever rod is vertically and slidably connected to the adjusting seat, and a pressure sensor for detecting acting force born by the cantilever rod is arranged between the adjusting seat and the cantilever rod.

Through adopting above-mentioned technical scheme, adjust the seat and fix on the lateral wall of body, connect the cantilever bar on adjusting the seat again, connect climbing section through the cantilever bar, set up pressure sensor between cantilever bar and climbing section, can detect the pressure that the cantilever bar received through pressure sensor, and then can detect the pulling force that every coupling assembling bore, make the climbing section of installation be in more stable state, can monitor coupling assembling's operating condition through pressure sensor simultaneously.

Preferably, the adjusting seat comprises a seat body and a moving block; the seat body is fixed on the side wall of the body through bolts and nuts; the moving block is connected to the base body in a sliding manner; the seat body is provided with a through groove; a rack is slidably matched in the through groove; the teeth of the rack face the moving block; the moving block is provided with a meshing tooth matched with the rack; when the seat body is abutted against the side wall of the body, the meshing teeth are meshed with the teeth of the rack; the length direction of the rack is parallel to the sliding direction of the moving block relative to the base body.

Through adopting above-mentioned technical scheme, the pedestal passes through bolt and nut earlier and connects on the lateral wall of body to install the rack on the pedestal, during the installation, remove for the pedestal by the movable block, with the position of adjusting the cantilever bar, then in will rack card to the interlock tooth again, and then make the movable block fixed for the pedestal, make the removal of movable block more convenient, it is more firm after the fixing, while the structure is simpler.

Preferably, a sliding hole facing downwards vertically is formed in the lower part of the moving block; a top block fixed at the end part of the cantilever rod is in sliding fit in the sliding hole; a plugging block is fixedly arranged at the lower part of the moving block; an adjusting screw is connected to the plugging block through threads; one end of the adjusting screw rod is positioned in the sliding hole; the adjusting screw is vertically arranged; the pressure sensor is located between the adjusting screw and the top block.

Through adopting above-mentioned technical scheme, the slide hole is offered to the lower part of movable block, and the cantilever bar passes through kicking block sliding connection in the slide hole, and when adjusting screw threaded connection was on the shutoff piece, adjusting screw just opposite to the kicking block, set up pressure sensor through between kicking block and the adjusting screw, and adjusting screw rotates and can make the kicking block remove, and pressure sensor can detect the pressure of kicking block simultaneously, and then adjusts and control the tolerance of cantilever bar.

Preferably, the middle horizontal section is integrally annular; four branches are circumferentially arranged on the middle horizontal section and used for being connected with the climbing section.

Through adopting above-mentioned technical scheme, the middle horizontal segment is the ring, makes pedestrian or non-motor vehicle flow along a direction on the middle horizontal segment, and the position of branch fork divides into respective climbing section, improves the efficiency of passing.

Preferably, a supporting pile is arranged at one end of the climbing section far away from the middle horizontal section; the road extension positions at the two ends of the viaduct are lower than the height of the supporting pile.

Through adopting above-mentioned technical scheme, the both ends road extension's of overpass position is less than the support heap, adopts the support heap to support the climbing section, makes the climbing section erect alone, prolongs the length of climbing section, reduces the slope of climbing section, also can reduce the required material of extension of overpass simultaneously.

the construction method of the environment-friendly steel structure cantilever pedestrian bridge and girder connection structure comprises the steps of installing a connection assembly between a climbing section and a girder; when the connecting component between the climbing section and the main beam is installed, the base body is firstly installed on the side wall of the body through bolts and is not abutted with the side wall of the body, and then the moving block is adjusted relative to the base body; the base body is pressed, and the rack in the base body is used for fixing the moving block; then the adjusting screw rod is rotated to enable the cantilever rod to detect the supporting force of the climbing section through the pressure sensor; connecting the middle horizontal section below the main beam with the climbing section; the pressure value of the pressure sensor is further adjusted so that the support of the plurality of cantilever bars is in a close state.

Through adopting above-mentioned technical scheme, through place the pedestal on the bolt earlier, then remove the movable block for the pedestal and adjust the position of cantilever bar again, can adjust the height of cantilever bar when slip direction slope upwards, then compress tightly the pedestal and make rack card movable block on the body again, and then conveniently fix the movable block and more firm, detect the pressure of cantilever bar by pressure sensor again preliminarily simultaneously, after the middle horizontal segment of installation, the pressure value of pressure sensor is in the state that is close each other again is further adjusted, make a plurality of cantilever bars be in more even operating condition, the security is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the middle horizontal section is arranged below the main beam instead of extending along the arch of the main beam after the climbing section is prolonged, so that the maximum height of the climbing section is lower than that of the main beam, and meanwhile, due to the arch structure of the main beam, the middle horizontal section is arranged above a ground road and does not influence the height limitation of a vehicle, and the convenient passing of a pedestrian bridge is ensured;

2. by extending the climbing section from one side of the side edge to the lower side of the side edge, when the climbing section is installed, the climbing section is positioned below the side edge, so that the installation firmness is improved, the installation materials are saved, and meanwhile, the climbing section is connected with a downhill section which can enable a non-motor vehicle or a pedestrian to turn left;

3. through setting up gliding rack in the pedestal, offered the interlock tooth on the regulating block, after the position adjustment of regulating block under the pedestal, through the one side butt of pedestal on the lateral wall of body to the extrusion rack removes to the direction of regulating block and cooperates with the interlock tooth, and then fixes the regulating block, and the operation is more convenient, and the connection is more firm.

Drawings

FIG. 1 is a schematic overall structure of a first embodiment of the present application;

FIG. 2 is a schematic illustration of a structure with the main beam omitted in an embodiment of the present application;

fig. 3 is a schematic structural view of a second embodiment of the present application, in which the main beam is omitted;

fig. 4 is a schematic view of a position structure of a climbing section according to a third embodiment of the present application;

fig. 5 is a schematic diagram of a connection structure between a climbing section and a main beam in the third embodiment of the present application;

fig. 6 is a schematic diagram of a connection structure between a climbing section and a main beam according to a fourth embodiment of the present application;

FIG. 7 is a schematic view of an exploded structure of a regulating seat according to a fourth embodiment of the present application;

FIG. 8 is an enlarged schematic view of a portion A of FIG. 6;

fig. 9 is a schematic view of a position structure in which a pressure sensor is mounted in the fourth embodiment of the present application.

Reference numerals illustrate: 1. a viaduct; 11. a main beam; 111. a body; 112. a side edge; 12. bridge piers; 2. ground roads; 21. ground non-motor lanes; 3. pedestrian bridge; 31. a middle horizontal section; 32. climbing sections; 33. supporting the stack; 34. a downhill section; 35. an intermediate separation column; 36. branch fork; 6. a connection assembly; 61. a screw rod is arranged; 62. a lower screw; 63. a middle nut; 64. a connecting seat; 65. a cantilever bar; 651. a top block; 66. an adjusting seat; 661. a base; 6611. a through groove; 662. a moving block; 6621. a T-shaped groove; 6622. a bite tooth; 6623. a slide hole; 663. a bolt; 664. connecting a slide bar; 665. a rack; 666. a block; 67. adjusting a screw; 68. a pushing block; 69. a pressure sensor.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-9.

The embodiment of the application discloses an environment-friendly steel structure cantilever pedestrian bridge and girder connecting structure and a construction method.

In a first embodiment of the present invention,

the utility model provides an environmental protection type steel structure cantilever pedestrian bridge and girder connection structure, refer to fig. 1 and 2, including overpass 1, overpass 1 includes girder 11 and pier 12, and the both ends of girder 11 are supported through pier 12, and girder 11 is made for concrete structure, and girder 11 is whole to be the arc, and the upper surface of girder 11 is used for the vehicle of traveling. The middle part of the main beam 11 of the viaduct 1 is the highest arc position of the main beam 11, a ground road 2 is arranged below the main beam, and the two sides of the ground road 2 are provided with ground non-motor vehicle lanes 21 positioned on the ground. The ground road 2 is used for driving motor vehicles, and the ground non-motor vehicle lane 21 is used for driving non-motor vehicles or pedestrians. The ground road 2 and the overpass 1 run perpendicular to each other so that the motor vehicle running in both directions can pass directly.

Referring to fig. 1 and 2, a pedestrian bridge 3 is provided in the length direction of the overpass 1, the pedestrian bridge 3 includes a middle horizontal section 31 and a climbing section 32, the middle horizontal section 31 is located right above the ground road 2, and a forward projection section of the middle horizontal section 31 in the vertical direction spans the width direction of the ground road 2, the middle horizontal section 31 is fixed below the main beam 11, and the middle horizontal section 31 is horizontally laid from the bow shape of the main beam 11 to the lowest limit height position of the ground road 2, so that the distance from the middle horizontal section 31 to the ground road 2 satisfies the normal traffic of vehicles. Meanwhile, one end of the climbing section 32 extends from the ground to the edge of the middle horizontal section 31, so that when the middle horizontal section 31 is positioned at the lowest height position, the maximum height of the climbing section 32 can be reduced, the passing difficulty of non-motor vehicles and pedestrians on the pedestrian bridge 3 is reduced, because the viaduct 1 is wholly arched, the middle part of the viaduct 1 is arranged at intervals with the middle horizontal section 31, the maximum height of the motor vehicles allowed to pass on the ground road 2 is the vertical minimum distance from the lower part of the main beam 11 to the ground road 2, and if the vertical maximum distance from the lower part of the main beam 11 to the ground road 2 is the limit height of the viaduct 1, the vehicles collide with the lower surface of the main beam 11 when the vertical distance from the lower surface of the main beam 11 to the ground road 2 meeting the limit height is smaller than the maximum distance; therefore, by arranging the middle horizontal section 31 below the main beam 11, the normal passing of vehicles on the ground road 2 is not affected, the maximum height of the pedestrian bridge 3 is reduced, the passing difficulty is reduced, and the material quantity increased by the increase of the height of the pedestrian bridge 3 is reduced.

Referring to fig. 2, the climbing sections 32 are located at two sides of the main beam 11, and an end of the climbing section 32 close to the ground is provided with a separate supporting pile 33, wherein the supporting pile 33 can adopt a steel structure, an earthwork pile or a concrete column, and the extending positions of the two ends of the viaduct 1 are lower than the height of the supporting pile 33, so that the gradient of the climbing section 32 can be further reduced, and the building length of the two ends of the viaduct 1 under the condition of the same gradient as the pedestrian bridge 3 can be reduced. Guard rails are arranged at the edges of the pedestrian bridge 3 and the viaduct 1, so that the safety of driving and pedestrians is improved. A downhill section 34 is arranged between the middle position of the climbing section 32 and the ground non-motorized vehicle lane 21, and a pedestrian needing to turn left on the pedestrian bridge 3 firstly ascends to the middle horizontal section 31 along the climbing section 32 on the right side of the main beam 11, then passes through the overhead bridge 1 from the middle horizontal section 31 to the climbing section 32 on the left side of the main beam 11, then descends to the downhill section 34 along the climbing section 32, and then descends to the ground non-motorized vehicle lane 21 on the right side of the ground road 2 along the downhill section 34. The pedestrian bridge 3 can also be used for the action of an overpass, so that pedestrians can pass through the climbing section 32 on the right side of the overpass 1 to the middle horizontal section 31 and then to the climbing section 32 on the left side of the overpass 1, and the pedestrians pass through the overpass 1, so that the pedestrians cannot influence the running of the road vehicles of the overpass 1.

Referring to fig. 2, an intermediate separation fence 35 is provided on the climbing section 32 at a position between the climbing section 32 and the intermediate horizontal section 31, and the intermediate separation fence 35 is used for separating the ascending and descending non-motor vehicles of the climbing section 32 so that the descending non-motor vehicles can travel along the left side of the main beam 11 by way.

Referring to fig. 2, the middle horizontal segment 31 is in a rectangular ring shape, a plurality of connecting components 6 are arranged on the middle horizontal segment 31, the middle horizontal segment 31 is fixed on the main beam 11 through the connecting components 6, branch forks 36 for connecting the climbing segments 32 are respectively extended at four corners of the middle horizontal segment 31, and when the middle horizontal segment 31 is in a rectangular shape, the climbing segments 32 can directly walk along the edge of the viaduct 1, so that the passing efficiency is improved. The fork 36 is fixedly connected to the middle horizontal segment 31 at an end of the climbing segment 32 remote from the supporting pile 33, so that the climbing segment 32 is mounted in a cantilever manner. The distance from the position of the middle horizontal segment 31 below the main beam 11 to the lower surface of the main beam 11 is 1.9m-2.1m, so that the minimum passing height of pedestrians or non-motor vehicles is ensured. When the width of the middle horizontal section 31 is too small due to the distance from the position of the middle horizontal section 31 below the main beam 11 to the lower surface of the main beam 11, the middle horizontal section 31 in a rectangular belt shape can be adopted, and meanwhile, the size of the middle horizontal section 31 is reduced, so that materials are saved; the intermediate horizontal section 31 may be directly connected to the climbing section 32.

In a second embodiment of the present invention,

referring to fig. 3, the difference between the environment-friendly cantilever pedestrian bridge and the main beam connecting structure of the first embodiment is that the middle horizontal section 31 is in a circular ring shape, and four branches 36 for connecting the climbing sections 32 are circumferentially arranged on the middle horizontal section 31, so that when the middle horizontal section 31 is connected to the four climbing sections 32, pedestrians and non-motor vehicles are easier to guide according to the same direction, thereby improving the passing efficiency on the middle horizontal section 31 and reducing the mutual influence of opposite running.

In a third embodiment of the present invention,

the difference between the environment-friendly steel structure cantilever pedestrian bridge and the girder connecting structure, referring to fig. 4 and 5, and the first and second embodiments is that the girder 11 is a box girder, the girder 11 includes a body 111 and a side edge 112, the side edge 112 is located at the edge of the body 111 and extends outwards, the side edge 112 is located at the upper part of the body 111, the upper surface of the side edge 112 is flush with the upper surface of the body 111, and the distance from the lower surface of the side edge 112 to the lower surface of the body 111 is set to 50-150cm according to the strength of the girder 11. In order to connect the main beam 11 with the climbing section 32, after the vertical distance between the climbing section 32 and the side edge 112 reaches 1.9m, the climbing section 32 extends from a position at one side of the side edge 112 far from the body 111 to a position directly below the side edge 112, so that the climbing section 32 moves to a position close to the body 111, thereby facilitating the interconnection of the climbing section 32 and the main beam 11.

Referring to fig. 4 and 5, a plurality of connection assemblies 6 are sequentially disposed along the length direction of the climbing section 32, and the connection assemblies 6 are distributed at both sides of the climbing section 32. The upper end of the connecting component 6 is connected with the side edge 112, and the lower end of the connecting component 6 is connected with the climbing section 32, so that the climbing section 32 is hung under the side edge 112 through the connecting component 6. The connecting assembly 6 comprises an upper screw 61, a lower screw 62 and an intermediate nut 63, wherein a connecting seat 64 is arranged at the lower end of the lower screw 62, the connecting seat 64 can be welded on the climbing section 32, the upper end of the upper screw 61 is provided with the connecting seat 64, the connecting seat 64 can be embedded in a side edge 112, the lower screw 62 and the upper screw 61 are both connected with the connecting seat 64 through pin shafts, two ends of the intermediate nut 63 are respectively in threaded connection with the upper screw 61 and the lower screw 62, the threads at two ends of the intermediate nut 63 are opposite in rotation direction, and when the intermediate nut 63 is rotated, the distance between the upper screw 61 and the lower screw 62 is close to each other, so that the height of the climbing section 32 can be adjusted, and the upper screw 61, the lower screw 62 and the intermediate nut 63 are connected through the upper screw 61, the lower screw 62 and the intermediate nut 63; the connection assembly 6 may be used for connection between the intermediate horizontal section 31 and the main beam 11.

In a fourth embodiment of the present invention,

an environment-friendly steel structure cantilever pedestrian bridge and girder connecting structure is different from the third embodiment in that the connecting assembly 6 installed on the climbing section 32 is located on the side wall of the body 111 close to the side edge 112 with reference to fig. 6. The connecting assembly 6 comprises a cantilever rod 65, the cantilever rod 65 is L-shaped as a whole, one end of the cantilever rod 65 is in a horizontal state, the other end of the cantilever rod 65 is in a vertical state, and the vertical end of the cantilever rod 65 is positioned between the body 111 and the climbing section 32, so that the horizontal end horizontally extends to the lower part of the climbing section 32 and is fixedly connected with the climbing section 32. An adjusting seat 66 is installed on one vertical end of the cantilever 65, the adjusting seat 66 is fixed on the side wall of the body 111, and the cantilever 65 is connected with the adjusting seat 66.

Referring to fig. 7, the adjustment seat 66 includes a seat body 661 and a moving block 662, the seat body 661 being for being fixed on a side wall of the body 111. A plurality of bolts 663 are pre-buried or planted in the body 111 to fix, or expansion bolts may be used, and the bolts 663 penetrate through the seat body 661 and are fixed by nuts, so that one surface of the seat body 661 abuts against the side wall of the body 111, and the side wall of the body 111 is obliquely arranged. The side wall of the body 111 is parallel to the one side of the body 111 in the pedestal 661, and two connecting sliding bars 664 are arranged on the side of the pedestal 661 opposite to the body 111, and the cross section of each connecting sliding bar 664 is T-shaped, two T-shaped grooves 6621 are formed in the moving block 662, the two connecting sliding bars 664 are arranged at intervals up and down, so that the two T-shaped grooves 6621 are in one-to-one sliding fit with the connecting sliding bars 664, the moving block 662 can move along the length direction of the connecting sliding bars 664 relative to the pedestal 661, and the connection firmness between the two connecting sliding bars 664 and the moving block 662 can be improved. When the connecting slider 664 is installed, the length direction of the connecting slider 664 is inclined to the horizontal plane, and when the movable block 662 slides along the length direction of the connecting slider 664, the movable block 662 drives the cantilever 65 to be adjustable in the height direction.

Referring to fig. 7 and 8, a through groove 6611 is formed in the middle of the base 661, a rack 665 is disposed in the through groove 661, and the length direction of the rack 665 is parallel to the length direction of the connecting slider 664. The rack 665 is slidably fitted in the seat 661 through the through groove 6611, a toothed surface of the rack 665 faces the moving block 662, a surface of the rack 665 facing away from the moving block 662 is exposed from the seat 661 toward the side of the body 111, and the moving block 662 is provided with engagement teeth 6622 for engaging with the rack 665. When the rack 665 is slid with respect to the base 661 such that the rack 665 is disengaged from the engagement teeth 6622, the movable block 662 can slide with respect to the base 661; when the seat 661 is fixedly attached to the side wall of the body 111, the rack 665 is press-fitted into the engagement teeth 6622, thereby fixing the moving block 662 relative to the seat 661.

Referring to fig. 9, a vertical sliding hole 6623 is formed at a lower portion of the moving block 662, and an upper end of the cantilever 65 is inserted into the sliding hole 6623. A top block 651 is fixedly arranged at the upper end of the cantilever 65, and the top block 651 can be fixed with the cantilever 65 in an integrally arranged or welded mode. The top block 651 is in sliding fit with the sliding hole 6623, the cross section of the cantilever rod 65 is T-shaped, and the material consumption is saved while the bending resistance of the cantilever rod 65 is improved. A block 666 is provided on the inner wall of the opening of the slide hole 6623, and the block 666 makes the opening of the slide hole 6623 form a T shape that is fitted with the cantilever 65. Meanwhile, an adjusting screw 67 is connected to the plugging block 666, the adjusting screw 67 is in threaded connection with the plugging block 666, the adjusting screw 67 is arranged along the sliding hole 6623, one end of the adjusting screw 67 is located in the sliding hole 6623, and the other end of the adjusting screw 67 is located outside the sliding hole 6623 and is convenient to rotate. One end of the adjusting screw 67 in the sliding hole 6623 is abutted with the push block 68, a pressure sensor 69 is arranged between the push block 68 and the top block 651, when the adjusting screw 67 rotates, the push block 68 moves towards the direction of the top block 651, then the top block 651 is supported by the pressure sensor 69, and then the adjusting screw 67 can adjust the height of the cantilever rod 65 on one hand and the pressure of the pressure sensor 69 on the other hand, and the supporting acting force of the cantilever rod 65 on the climbing section 32 can be obtained through the pressure value detected by the pressure sensor 69. The connection condition of the pedestrian bridge 3 and the main beam 11 can be monitored in the use process, so that the safety is improved.

The embodiment also discloses a construction method of the environment-friendly steel structure cantilever pedestrian bridge and girder connection structure, which comprises the steps of installing a connection assembly 6 between the climbing section 32 and the girder 11; when the connecting component 6 between the climbing section 32 and the main beam 11 is installed, the seat body 661 is firstly installed on the bolts 663, and the seat body 661 is not pressed on the side wall of the body 111; then the moving block 662 is adjusted along the length direction of the connecting sliding bar 664 to adjust the height of the cantilever 65, then the base 661 is extruded to the side wall of the body 111 to enable the teeth on the rack 665 to be matched with the engagement teeth 6622, so that the height of the moving block 662 is fixed, then the adjusting screw 67 is rotated to adjust the supporting acting force of the cantilever 65 on the climbing section 32, and the pressure sensor 69 is used for observing the adjusting condition to enable the cantilever 65 to be in a proper supporting state; the middle horizontal section 31 is hung below the main beam 11 through the connecting component 6, and the middle horizontal section 31 is connected with the climbing sections 32 or is directly connected with the four climbing sections 32 according to the weight of the middle horizontal section 31; the adjusting screw 67 is then rotated to bring the pressure of the plurality of pressure sensors 69 to bring the support of the plurality of cantilever rods 65 into an equal or close state.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides an environmental protection type steel structure cantilever pedestrian bridge and girder connection structure which characterized in that: the viaduct comprises a viaduct (1), wherein the lower part of the viaduct (1) is used for setting a ground road (2), ground non-motor vehicle lanes (21) are arranged on two sides of the ground road (2), the viaduct (1) comprises a main beam (11), the main beam (11) is arched, a pedestrian bridge (3) is connected with the main beam (11), the pedestrian bridge (3) comprises a middle horizontal section (31) and a climbing section (32), and the distance from the middle horizontal section (31) to the ground road (2) is larger than the minimum vertical distance between the lower surface of the main beam (11) and the ground road (2); the middle horizontal section (31) is positioned right below the arc-shaped middle part of the main beam (11); the climbing sections (32) are arranged along the directions of the viaduct (1) along the two side edges (112) of the viaduct (1); the middle horizontal section (31) is connected with climbing sections (32) at two sides of the viaduct (1); one end of the climbing section (32) is supported on the ground along the extending direction of the viaduct (1); the other end is as high as the middle horizontal section (31); the middle horizontal section (31) and/or the climbing section (32) are/is fixedly connected with the main beam (11) through the connecting component (6);

the main beam (11) comprises a body (111) and side edges (112); the side edge (112) is arranged at the upper part of the side wall of the body (111); the middle position of the climbing section (32) extends from a position at one side of the side edge (112) far away from the body (111) to the lower part of the side edge (112), and the climbing section (32) is close to the side wall of the body (111);

the connecting assembly (6) comprises an upper screw (61), a lower screw (62) and an intermediate nut (63); the upper screw (61) is hinged to the lower surface of the side edge (112), the lower screw (62) is hinged to the climbing section (32), two ends of the middle nut (63) are connected with the upper screw (61) and the lower screw (62) in a threaded manner, and the threads at two ends of the middle nut (63) are opposite in rotation direction;

the connecting assembly (6) comprises a cantilever rod (65) and an adjusting seat (66); the adjusting seat (66) is fixed on the side wall of the body (111); one end of the cantilever rod (65) is fixed on the lower surface of the climbing section (32), the other end of the cantilever rod is vertically and slidably connected to the adjusting seat (66), and a pressure sensor (69) for detecting acting force born by the cantilever rod (65) is arranged between the adjusting seat (66) and the cantilever rod (65);

the adjusting seat (66) comprises a seat body (661) and a moving block (662); the seat body (661) is fixed on the side wall of the body (111) through a bolt (663) and a nut; the moving block (662) is connected to the base body (661) in a sliding way; a through groove (661) is formed in the base body (661); a rack (665) is slidably matched in the through groove (6611); the teeth of the rack (665) are oriented towards the moving block (662); the movable block (662) is provided with a meshing tooth (6622) matched with the rack (665); when the seat body (661) is abutted against the side wall of the body (111), the meshing teeth (6622) are meshed with the teeth of the rack (665); the length direction of the rack (665) is parallel to the sliding direction of the moving block (662) relative to the base (661).

2. The environment-friendly steel structure cantilever pedestrian bridge and girder connecting structure as claimed in claim 1, wherein: the middle part of the climbing section (32) is connected with a downhill section (34); one end of the downhill section (34) far away from the climbing section (32) is connected with a ground non-motor vehicle lane (21); an intermediate separating fence (35) is arranged between the positions on the climbing section (32) connected with the downhill section (34) and the intermediate horizontal section (31).

3. The environment-friendly steel structure cantilever pedestrian bridge and girder connecting structure as claimed in claim 1, wherein: a sliding hole (6623) which vertically faces downwards is formed in the lower part of the moving block (662); a top block (651) fixed at the end part of the cantilever rod (65) is in sliding fit with the sliding hole (6623); a plugging block (666) is fixedly arranged at the lower part of the moving block (662); an adjusting screw rod (67) is connected to the plugging block (666) in a threaded manner; one end of the adjusting screw rod (67) is positioned in the sliding hole (6623); the adjusting screw (67) is vertically arranged; the pressure sensor (69) is located between the adjusting screw (67) and the top block (651).

4. The environment-friendly steel structure cantilever pedestrian bridge and girder connecting structure as claimed in claim 1, wherein: the whole middle horizontal section (31) is circular; four branches (36) are arranged in the circumferential direction of the middle horizontal section (31) and are used for being connected with the climbing section (32).

5. The environment-friendly steel structure cantilever pedestrian bridge and girder connecting structure as claimed in claim 1, wherein: one end of the climbing section (32) far away from the middle horizontal section (31) is provided with a supporting pile (33); the road extension positions at the two ends of the viaduct (1) are lower than the height of the supporting pile (33).

6. The utility model provides a construction method of environmental protection type steel structure cantilever pedestrian bridge and girder connection structure for construct an environmental protection type steel structure cantilever pedestrian bridge and girder connection structure of claim 3, its characterized in that: comprises a connecting component (6) between the climbing section (32) and the main beam (11); when the connecting component (6) between the climbing section (32) and the main beam (11) is installed, firstly, the base body (661) is installed on the side wall of the body (111) through the bolt (663) and is not in contact with the side wall of the body (111), and then the moving block (662) is adjusted relative to the base body (661); the base body (661) is pressed, and the rack (665) in the base body (661) is used for fixing the moving block (662); then, the adjusting screw (67) is rotated to enable the cantilever rod (65) to detect the supporting force of the climbing section (32) through the pressure sensor (69); the middle horizontal section (31) is positioned below the main beam (11) and is connected with the climbing section (32); the pressure value of the pressure sensor (69) is further adjusted so that the support of the plurality of cantilever rods (65) is in a state of being close.