CN210458910U - Movable span limiting device based on flat-open type opening bridge - Google Patents

Abstract

The utility model discloses a movable span limiting device based on a flat-open type opening bridge, which comprises a movable span, wherein the movable span comprises at least three movable span steel pipe piles; the movable bridge span is arranged at the upper part of the movable span steel pipe pile and adopts a cantilever steel box girder structure; a movable bridge deck laid on the upper surface of the movable bridge span; a driving mechanism for driving the movable span to move horizontally is arranged between the pile top platform at the upper end of the movable span steel pipe pile and the movable bridge span; installing a horizontal limiting device on a pile top platform of the movable span steel pipe column close to the splicing end; and the lateral limiting device and the upper limiting device are arranged on a pile top platform of the movable span steel pipe pile outside the movable bridge span. The three-direction constraint is carried out on the opening bridge, so that the stability and the safety of the movable cross-word horizontal opening process are ensured, and meanwhile, the risk of side turning caused by unbalanced load, strong wind, rainfall and other severe weather is effectively prevented. In addition, the utility model has the advantages of simple structure, long service life, easy maintenance, etc.

Description

Movable span limiting device based on flat-open type opening bridge

Technical Field

The utility model belongs to the technical field of the bridge is built, especially, relate to a stop device is striden in activity based on bridge is opened to flat-open type.

Background

The bridge is opened for navigation, and the upper structure can be opened and closed in modes of vertical rotation, horizontal rotation, lifting and the like so as to meet the navigation requirement. When the water surface of a river has navigation requirements and a fixed bridge cannot meet the navigation clearance requirements of ships, opening the bridge is the best choice. The open bridge not only solves the problem of river navigation, but also becomes a local urban landscape, and the partially open bridge also becomes a representative building and symbol of a city.

The modern opening bridge mainly has three main opening modes of vertical rotation opening, horizontal rotation opening, vertical lifting and the like, wherein the vertical rotation opening bridge is opened by vertically rotating around a horizontal shaft, the horizontal rotation opening bridge is opened by horizontally rotating around a vertical shaft in a bridge span structure, and the vertical lifting opening bridge is generally opened by vertically lifting the opening bridge span structure so as to meet the clearance requirement. The pier needs to be arranged at the position of a rotating shaft when the vertical rotation opening and the horizontal rotation opening are carried out, the pier is usually large in size and difficult to handle in landscape, the pier has obvious water blocking effect on a river channel, the balance of a bridge structure needs to be kept in the rotation opening process, large unbalanced moment is resisted, the requirements on machinery and structural design are high, the energy consumption in the opening process is large, the efficiency is low, and the possibility of danger such as overturning caused by component failure exists in the process. The vertical lifting opening needs to arrange tall, large and thick bridge towers and pier columns on two sides of an opening span, generally, a counterweight needs to be arranged on the bridge towers, and the structure is also complex.

The pedestrian-oriented bridge is required to have a traffic function and is also required to have landscape and hydrophilic requirements, the three conventional opening modes meet the opening function, but the opening principle is complex, the stress state change in the opening process is large, the maintenance cost of bridge members and an opening system is high, and the pedestrian-oriented bridge opening method is not the best choice for the pedestrian landscape bridge opening.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model provides a stop device is striden in activity that bridge was opened based on flat-open type to structure safe and reasonable, equipment maintenance is simple, safe and reliable.

The utility model discloses a movable span stop device based on a flat-open type opening bridge, which comprises a movable span and is characterized in that the movable span comprises at least three movable span steel pipe piles; the movable bridge span is arranged at the upper part of the movable span steel pipe pile and adopts a cantilever steel box girder structure; a movable bridge deck laid on the upper surface of the movable bridge span; a driving mechanism for driving the movable span to move horizontally is arranged between the pile top platform at the upper end of the movable span steel pipe pile and the movable bridge span; installing a horizontal limiting device on a pile top platform of the movable span steel pipe column close to the splicing end; and the lateral limiting device and the upper limiting device are arranged on a pile top platform of the movable span steel pipe pile outside the movable bridge span.

According to the technical scheme, preferably, the horizontal limiting device comprises a limiting block arranged on the pile top platform of the movable span steel pipe pile and a buffer block arranged on the lower surface of the movable span and corresponding to the limiting block.

The lateral limiting device comprises a limiting vertical plate vertically and fixedly installed on a pile top platform of the movable span steel pipe pile, a fixing frame is fixedly installed on the inner side of the upper end of the limiting vertical plate, a limiting restraining wheel is installed on the fixing frame, and the limiting restraining wheel is attached to the outer edge of the movable bridge span steel box girder.

The upper limiting device comprises an upper limiting vertical plate which is vertically and fixedly arranged on a pile top platform of the movable span steel pipe pile, and a supporting groove is formed in the upper end face of the upper limiting vertical plate; an upper limiting hanging piece is arranged on the outer side of the upper end of the upper limiting vertical plate; the upper limiting hanging piece comprises a connecting plate, a lower positioning plate is arranged at the lower end of the connecting plate, and an upper limiting plate is arranged at the upper end of the connecting plate in the same direction as the positioning plate; the upper limiting hanging piece is fixedly arranged on the upper limiting vertical plate through a cushion block and a fastening bolt; and the upper limiting plate is clamped at the upper edge of the movable bridge span steel box girder.

The utility model has the advantages and technological effect: the utility model relates to a bridge is for flat-open type view open bridge in fixed stride for fixed part bridge, transition stride for connecting fixed the junction part of striding with the activity is striden, the activity is striden and can be opened when needs navigation for when having certain navigation requirement under the bridge, the utility model discloses use and carry out three direction restraint on foretell open bridge for the activity strides the word level and opens stability and the security of in-process, also effectively prevents simultaneously because of unbalance loading, the risk that takes place to turn on one's side in bad weather such as strong wind, rainfall. In addition, the utility model has the advantages of simple structure, long service life, easy maintenance, etc.

Drawings

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

FIG. 2 is a schematic view of the bottom structure of the movable span of the present invention;

FIG. 3 is a schematic view of the installation structure of the lateral limiting device;

FIG. 4 is a schematic view of an upper restraint device mounting structure;

FIG. 5 is a schematic diagram of an open bridge structure according to an embodiment;

FIG. 6 is a schematic view of a fixed cross-sectional configuration;

FIG. 7 is a schematic view of an open span structure

FIG. 8 is a schematic view of an open bay bottom structure;

FIG. 9 is a schematic view of a drive mechanism mounting arrangement;

FIG. 10 is a schematic view of the power plant;

FIG. 11 is a schematic view of a rail clamp mounting arrangement;

FIG. 12 is a schematic view of the positioning device mounting structure

Fig. 13 is a structural diagram of an open span open state.

In the figure, 1, a fixed span; 1-1, fixing the steel pipe spanning pile; 1-2, a cover beam; 1-3, fixing a bridge span; 1-4, fixing the bridge spanning surface; 1-5, fixing the landscape spanning pavilion; 1-6, fixing a span safety barrier; 2. a transition span; 3. opening a span; 3-1, active spanning; 3-2, movably spanning the steel pipe pile; 3-3, movable bridge span; 3-4, movably crossing the bridge deck; 3-5, moving the landscape-crossing pavilion; 3-6, movably crossing the safety barrier; 3-7, pile top platform; 4. a hydrophilic platform; 5. a drive mechanism; 5-1, a guide rail; 5-2, wheel carrier; 5-3, supporting rollers; 5-4, a power device; 5-40, a motor; 5-41, a speed reducer; 5-42, power take-off gear; 5-43, a rack; 6. a positioning device; 6-1, a bolt component; 6-10, a plug pin mounting sleeve; 6-11, a bolt; 6-111, cylindrical mounting section; 6-112, a positioning flange plate; 6-113, a plug section; 6-114, a conical guide surface; 6-2, positioning sleeve components; 6-20 parts of a positioning sleeve; 6-21, connecting flanges; 6-22, centering sleeve; 6-23, end face flange; 7. a buffer device; 7-1, a buffer; 7-2, a buffer block; 8. a limiting device; 8-1, a limiting vertical plate; 8-2, fixing frames; 8-3, a limiting and restraining wheel; 9. an upper limiting device; 9-1, upper limiting vertical plates; 9-2, supporting grooves; 9-3, an upper limiting pendant; 9-30 parts of connecting plate; 9-31, a lower positioning plate; 9-32 parts of upper limiting plate; 10. a rail clamping device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4, the movable span limiting device based on the casement opening bridge comprises a movable span 3-1, wherein the movable span comprises at least three movable span steel pipe piles 3-2; 3-3 parts of movable bridge span arranged at the upper part of the movable span steel pipe pile, wherein the movable bridge span adopts a cantilever steel box girder structure disclosed in the field of bridge construction; 3-4 parts of movable bridge deck paved on the upper surface of the movable bridge span; a driving mechanism 5 for driving the movable span to move horizontally is arranged between the pile top platform at the upper end of the movable span steel pipe pile and the movable bridge span, and the pile top platforms 3-7 at the upper end of the movable span steel pipe pile adopt a bracket platform structure disclosed in bridge construction; the movable span is driven by the driving mechanism to move, so that the movable span is opened and closed; a horizontal limiting device 7 is arranged on a pile top platform of the movable span steel pipe column close to the splicing end, and the movable span is limited in the horizontal direction in the sight; and a lateral limiting device 8 and an upper limiting device 9 are arranged on the pile top platform of the movable span steel pipe pile outside the movable bridge span. Above-mentioned stop device does not take place the skew about effectively guaranteeing the activity, guarantees the stability of opening, goes up stop device and has effectively avoided taking place the problem of empting when meetting strong wind, great rivers impact because of the bridge floor atress is uneven.

In the above technical scheme, preferably, the horizontal limiting device 7 includes a limiting block 7-1 installed on the pile top platform of the movable span steel pipe pile and a buffer block 7-2 installed on the lower surface of the movable span and corresponding to the limiting block.

In the technical scheme, preferably, the limiting device 8 comprises a limiting vertical plate 8-1 vertically and fixedly installed on a pile top platform of the movable span steel pipe pile, a fixed frame 8-2 is fixedly installed on the inner side of the upper end of the limiting vertical plate, a limiting restraining wheel 8-3 is installed on the fixed frame, and the limiting restraining wheel is attached to the outer edge of the movable bridge span steel box girder.

In the above technical scheme, preferably, the upper limiting device 9 comprises an upper limiting vertical plate 9-1 vertically and fixedly mounted on a pile top platform of the movable span steel pipe pile, and the upper end surface of the upper limiting vertical plate is provided with a support groove 9-2; when the movable bridge is across and sinking, the movable bridge plays a role of supporting; an upper limiting hanging piece 9-3 is arranged on the upper limiting vertical plate outside the upper end part of the upper limiting vertical plate; the upper limiting hanging piece comprises a connecting plate 9-30, a lower positioning plate 9-31 is arranged at the lower end of the connecting plate, and an upper limiting plate 9-32 is arranged at the upper end of the connecting plate in the same direction as the positioning plate; the upper limiting hanging piece is fixedly arranged on the upper limiting vertical plate 9-1 through a cushion block and a fastening bolt; and the upper limiting plate is clamped at the upper edge of the movable bridge span steel box girder.

In the embodiment of the present invention, please refer to fig. 1 to 13: a side-hung pedestrian landscape opening bridge at least comprises two fixed spans 1, two transition spans 2 and an opening span 3; the fixed span 1 comprises a fixed span steel pipe pile 1-1; the capping beam is arranged above the fixed span steel pipe pile and used for supporting and transferring the load of an upper structure, the capping beam is a steel structure capping beam, and the specific structural form of the steel structure capping beam is a structural form commonly used in bridge construction; a fixed bridge span 1-3 installed above the bent cap; the fixed bridge span adopts a steel structure longitudinal and transverse beam system disclosed in the field of bridges; one end of each fixed bridge span is respectively connected with the hydrophilic platforms 4 on the two sides of the river channel; the other end of each fixed bridge span extends into the river channel, and a navigation water area is reserved between the two fixed bridge spans in the river channel; paving a fixed bridge span surface 1-4 on the upper surface of the fixed bridge span; a fixed span landscape pavilion 1-5 is arranged at the end part of the fixed bridge span in the river channel; the two sides of the fixed bridge span and the landscape pavilion side are provided with fixed span safety guardrails 1-6; the two fixed spans are respectively connected with an opening span 3 through a transition span 2; the central line of the opening span and the central lines of the two fixed spans are arranged in parallel, the transition span is arranged statically relative to the fixed spans, and a channel port is arranged at the joint of the transition span and the fixed spans; the opening span 3 comprises two oppositely opened movable spans 3-1, and the central lines of the two movable spans are positioned on the same central line; the movable span adopts the movable span with the structure, and in order to meet the landscape requirement, the movable span landscape pavilion 3-5 is arranged at the outer end part of the movable bridge span; and the movable span safety guardrails 3-6 are arranged on the two sides of the movable bridge span and the movable span landscape pavilion side, and the movable span is provided with a passage port communicated with the transition span; the pile top platform 3-7 at the upper end of the movable span steel pipe pile adopts a bracket platform structure disclosed in bridge construction; the movable span is driven by the driving mechanism to move, so that the movable span is opened and closed; the splicing ends of the two movable bridges are oppositely provided with positioning devices 6, and the positioning devices ensure the accuracy and stability of splicing after the two movable bridges are folded; the limiting device 7 is arranged on the pile top platform of the movable span steel pipe column close to the splicing end, so that the effective stroke of horizontal movement of the movable span is realized, and the impact on the steel pipe column when the movable span is opened or closed is effectively reduced; in the outside of activity bridge span side stop device 8 and last stop device 9 on the stake top platform of steel-pipe pile are striden in the activity, and above-mentioned side stop device effectively guarantees not taking place the skew about the activity, guarantees to open stability, goes up stop device and has effectively avoided taking place the problem of empting when the bridge floor atress is uneven or meet strong wind, great rivers impact.

In the above technical solution, preferably, the driving mechanism 5 includes two parallel guide rails 5-1 installed on the lower surface of the movable straddle superstructure; a wheel carrier 5-2 is arranged on the pile top platform of the movable span steel pipe pile corresponding to the guide rail position, and a support roller 5-3 is arranged on the wheel carrier; the movable span upper structure is placed on a supporting roller under the action of self weight, and the supporting roller is matched with the guide rail; a power device 5-4 is arranged on a pile top platform of the movable span steel pipe pile in the middle of the movable span, and comprises a motor 5-40, a speed reducer 5-41 and a power output gear 5-42; and racks 5-43 meshed with the power output gear are arranged on the lower surface of the movable span upper structure corresponding to the power output gear along the length direction of the movable span. In addition, the driving switch and the position detection switch which can not ensure the opening safety and detect the opening position are arranged, the driving switch is generally arranged in the movable cross-landscape pavilion, the position detection switch is arranged on a pile top platform of the movable cross-steel pipe pile and is used for controlling the running state of the driving mechanism, and then the bridge is opened and closed, and the driving switch and the position detection switch are purchased in the market according to actual needs and installed and used according to product specifications.

In the above technical solution, preferably, the positioning device 6 includes a plug pin assembly 6-1 disposed on the end face of the splicing end of one of the movable bridge spans, and a positioning sleeve assembly 6-2 is disposed on the end face of the movable bridge span on the corresponding side; the bolt assembly 6-1 comprises a bolt mounting sleeve 6-10 and a bolt 6-11; the bolt mounting sleeve is fixedly arranged on the movable bridge span, and the central line of the bolt mounting sleeve is parallel to the opening central line of the opening span; a bolt is arranged in the bolt mounting sleeve, the bolt 6-11 comprises a cylindrical mounting section 6-111, a positioning flange 6-112 and a bolt section 6-113 which are connected into a whole, a conical guide surface 6-114 is arranged at the end part of the bolt section, and the positioning flange is fixedly connected with an end surface flange 6-101 of the bolt mounting section 6-10 through a fastening bolt; the positioning sleeve assembly 6-2 comprises positioning sleeves 6-20 fixedly mounted on end faces of the opposite movable spans, connecting flanges 6-21 are arranged on the outer end faces of the positioning sleeves, centering sleeves 6-22 are inserted into the positioning sleeves, end face flanges 6-23 matched with the connecting flanges of the positioning sleeves are arranged on the outer end faces of the centering sleeves, and the connecting flanges of the positioning sleeves and the end face flanges of the centering sleeves are fixedly connected through fastening bolts.

In the above technical solution, preferably, the wheel carrier is provided with a rail clamping device 10 matched with a guide rail, and the rail clamping device purchased in the rail clamping device market is installed according to the product specification in the installation mode and the use method.

The fixed bridge that strides is fixed part bridge among foretell flat-open view opening bridge, the transition is striden for connecting the fixed connecting portion of striding and activity stride, opens to stride and can open when needs navigation, satisfies certain navigation width, fixed stride with the transition stride can set up in the one side of opening the stride, also can set up respectively in both sides, visual design condition is arranged in the plane between the three and suitably formulated according to the circumstances to reach better bridge landscape modeling. Meanwhile, a landscape pavilion is arranged at one end of the fixed span and the opened span bridge, a hydrophilic platform for viewing and resting is provided for the landscape bridge, and the fixed span and the opened span bridge are integrated with the landscape.

The bridge of this embodiment is used the utility model discloses stop device is spacing in three direction restraint for the stability and the security of in-process are opened to the word level are striden in the activity, also effectively prevent simultaneously because of the unbalance loading, the risk that takes place to turn on one's side in bad weather such as strong wind, rainfall. In addition, the utility model has the advantages of simple structure, long service life, easy maintenance, etc.

The following specific experimental items are exemplified: the fixed span and the transitional span bridge have the width of 6m and the span of 6m, and the main components are an upper structure, a cover beam, a pile foundation, a building landscape pavilion and a bridge deck auxiliary facility. The upper structure is a steel structure longitudinal and transverse beam system, wherein the longitudinal beam is I-shaped steel 28b, 5 channels are arranged on the cross section, the transverse beam is channel steel 16a and is arranged at a pier position, and one channel is arranged at the midspan at intervals of about 2 m; the cover beam adopts double rows of I-shaped steel 36b, and a lower flange plate of the cover beam is welded with a top plate of the steel pipe pile; the lower structure adopts phi 600 multiplied by 10mm steel pipe piles, two steel pipe piles are arranged in each standard pier position, the distance between every two steel pipe piles is 3.1m, and the length of each steel pipe pile is 16 m; the landscape pavilion is in a Chinese wood structure; the auxiliary facilities mainly comprise facilities for paving bridge floor wood, illuminating railings and the like.

The open span comprises two oppositely opened movable spans, the width of the bridge structure is 6m, the bridge span is arranged to be 2x10+20+2x10m, wherein the span of 20m can be opened or closed, and the main components comprise an upper structure steel box girder, a pile foundation, a pile top platform, a building landscape pavilion and a bridge deck auxiliary facility. The upper structure adopts a steel box girder with a cantilever, the top and bottom plates of the box girder adopt orthotropic plate structures, every 5m of the girder body is provided with one transverse partition plate, every 2.5m of the girder body is provided with one transverse stiffening rib, 2 steel guide rails 110x110mm are arranged at the bottom of the longitudinal girder along the bridge direction corresponding to the positions of the supporting rollers and the driving wheels, and the guide rails are matched with the supporting rollers and the driving wheels when the bridge is opened and closed; the lower structure adopts a phi 600 multiplied by 10mm steel pipe pile, the pile length is 20m, a steel structure bracket bearing platform is arranged on the pile top according to the size requirement of the component of the opening system, and a supporting roller, a driving mechanism, a horizontal limiting device, a side limiting device, an upper limiting device and the like required by the opening system are arranged on the bearing platform top; the landscape pavilion and the accessory facilities are fixed across the bridge.

The opening bridge adopts a flat-open opening and closing mode, and is stably opened or closed outwards or inwards under the drive of a power device; two positioning pin devices corresponding to the positions are arranged on the butt joint surfaces of the two movable spans, so that the positioning accuracy of the movable spans is ensured. According to experimental detection, 16m of navigation width can be realized after the opening span is opened, and the opening process needs 3-4 minutes; to sum up, the utility model discloses the view bridge is opened steadily, and it is simple to open the principle, has the bridge simultaneously and opens and close advantages such as fast, the energy consumption is less, the security is high.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (4)

1. A movable span limiting device based on a casement opening bridge comprises a movable span and is characterized in that the movable span comprises at least three movable span steel pipe piles; the movable bridge span is arranged at the upper part of the movable span steel pipe pile and adopts a cantilever steel box girder structure; a movable bridge deck laid on the upper surface of the movable bridge span; a driving mechanism for driving the movable span to move horizontally is arranged between the pile top platform at the upper end of the movable span steel pipe pile and the movable bridge span; installing a horizontal limiting device on a pile top platform of the movable span steel pipe column close to the splicing end; and the lateral limiting device and the upper limiting device are arranged on a pile top platform of the movable span steel pipe pile outside the movable bridge span.

2. The movable span limiting device based on the casement opening bridge according to claim 1, characterized in that: the horizontal limiting device comprises a limiting block arranged on a pile top platform of the movable span steel pipe pile and a buffer block arranged on the lower surface of the movable span and corresponding to the limiting block.

3. The movable span limiting device based on the casement opening bridge according to claim 1, characterized in that: the lateral limiting device comprises a limiting vertical plate vertically and fixedly installed on a pile top platform of the movable span steel pipe pile, a fixing frame is fixedly installed on the inner side of the upper end of the limiting vertical plate, a limiting restraining wheel is installed on the fixing frame, and the limiting restraining wheel is attached to the outer edge of the movable bridge span steel box girder.

4. The movable span limiting device based on the casement opening bridge according to claim 1, characterized in that: the upper limiting device comprises an upper limiting vertical plate which is vertically and fixedly arranged on a pile top platform of the movable span steel pipe pile, and a supporting groove is formed in the upper end face of the upper limiting vertical plate; an upper limiting hanging piece is arranged on the outer side of the upper end of the upper limiting vertical plate; the upper limiting hanging piece comprises a connecting plate, a lower positioning plate is arranged at the lower end of the connecting plate, and an upper limiting plate is arranged at the upper end of the connecting plate in the same direction as the positioning plate; the upper limiting hanging piece is fixedly arranged on the upper limiting vertical plate through a cushion block and a fastening bolt; and the upper limiting plate is clamped at the upper edge of the movable bridge span steel box girder.

Images