CN214271728U - Integral lifting type steel trestle for navigation hole - Google Patents
Integral lifting type steel trestle for navigation hole Download PDFInfo
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- CN214271728U CN214271728U CN202120126133.9U CN202120126133U CN214271728U CN 214271728 U CN214271728 U CN 214271728U CN 202120126133 U CN202120126133 U CN 202120126133U CN 214271728 U CN214271728 U CN 214271728U
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Abstract
The utility model discloses a navigation hole integral lifting type steel trestle, belonging to the technical field of overwater bridge construction and comprising a navigation hole bridge plate; the main beam is arranged below the navigation hole bridge plate; the braking piers are used for supporting the front end and the rear end of the main beam; the hoisting cross beam is transversely arranged below the main beam, and the length of the hoisting cross beam is greater than the width of the navigation hole bridge plate; the hoisting cross beams are arranged and are respectively positioned on the left side and the right side of the navigable pore bridge plate, and the hoisting cross beams are longitudinally arranged along the navigable pore bridge plate; the lifting device is positioned on the hoisting cross beam; and the hoisting support pile is positioned below the hoisting cross beam and is used for supporting the hoisting cross beam. The utility model discloses the whole promotion formula steel landing stage in navigation hole has realized that vehicle traffic on the bridge and the navigation of boats and ships under the bridge are two not mistake, has reduced promotion and descending height, has realized the synchronous promotion of navigation hole steel landing stage bridge floor and has descended, has reduced the construction risk, has reduced the potential safety hazard.
Description
Technical Field
The utility model relates to a bridge construction technical field on water especially relates to whole promotion formula steel landing stage in navigation hole.
Background
The temporary steel trestle at the navigation hole generally adopts two processing schemes of lifting the elevation of the bridge deck of the navigation hole and lifting the bridge deck of the navigation hole. The construction scheme that the elevation of the bridge surface of the navigation hole is raised can increase the construction cost, and meanwhile, the longitudinal slope is large around the navigation hole, so that the daily driving potential safety hazard is large. Generally, the upper structure of the steel trestle is generally a Bailey beam + I16 crossbeam +10mm steel plate, although the Bailey beam has the advantages of excellent bending resistance, high assembling and disassembling speed and the like, the Bailey beam is high in height, and when the elevation of the bridge deck is consistent, the overall lifting height and the descending height are large, the lifting stability and the descending stability are poor, the construction risk is high, and the potential safety hazard is large. The integral lifting and descending hanger structure conventionally adopts a traditional crossing type transverse hanger structure, namely, a lifting beam of the hanger structure transversely crosses a steel trestle bridge floor, the lifting beam is erected on lifting support piles on two sides of the steel trestle, and a lifting beam under the steel trestle bridge floor is lifted through a lifting system on the lifting beam to realize integral lifting and descending of the steel trestle. But the normal traffic of crawler crane will be influenced to the hoist and mount crossbeam of traditional crossing type horizontal gallows structure, if the normal traffic of crawler crane is fully considered, then hoist and mount the support pile height more than the steel trestle bridge floor will reach 10m, not only construction cost increases, and the security and the stability of gallows structure reduce simultaneously.
Adopt the mode of promoting navigation hole bridge floor, conventional promotion generally adopts finish rolling screw-thread steel and vertical jack to promote and descend with the descending device, needs the manual work to operate, and work efficiency is lower, and the synchronism is relatively poor, and in the operation process, constructor need through gallows structure about the cat ladder, has great potential safety hazard.
SUMMERY OF THE UTILITY MODEL
In order to solve the deficiencies in the prior art, the whole lifting type steel trestle with the navigation hole is provided, two errors of vehicle navigation on the bridge and ship navigation under the bridge are realized, the lifting and descending heights are reduced through adjustment of the steel trestle structure with the navigation hole, optimization of the hanger structure and improvement of a lifting and descending system, the problem of mutual interference of the conventional crossing type bright hanger structure and the normal traffic of a lifting device is solved, synchronous and efficient lifting and descending of the bridge floor of the steel trestle with the navigation hole are realized, the construction risk is reduced, and the potential safety hazard is reduced.
The utility model provides a technical scheme that its technical problem adopted does:
the integral lifting type steel trestle for the navigation hole comprises a navigation hole bridge plate; the main beam is arranged below the navigable hole bridge plate; the braking piers are used for supporting the front end and the rear end of the main beam; the hoisting cross beam is transversely arranged below the main beam, and the length of the hoisting cross beam is greater than the width of the navigation hole bridge plate; the hoisting cross beams are arranged on the left side and the right side of the navigable pore bridge plate respectively, the hoisting cross beams are longitudinally arranged along the navigable pore bridge plate, and the height from the hoisting cross beams to the water surface is higher than that from the navigable pore bridge plate to the water surface; the lifting device is positioned on the hoisting cross beam and used for driving the hoisting cross beam to ascend and descend; and the hoisting support pile is positioned below the hoisting cross beam and is used for supporting the hoisting cross beam.
Furthermore, non-navigation hole steel trestles are arranged in front of and behind the whole lifting type steel trestle of the navigation hole.
Furthermore, the non-navigable pore bridge plate, the cross beam and the Bailey beam are sequentially arranged up and down on the non-navigable pore steel trestle, and the non-navigable pore bridge plate and the navigable pore bridge plate are on the same horizontal plane.
Further, the height of the Bailey beam is higher than that of the main beam.
Furthermore, the navigation hole bridge plate is a steel plate.
Further, the main beam is a section steel beam.
Furthermore, two lifting cross beams are arranged and are respectively positioned at the front end and the rear end of the main beam.
Furthermore, the lifting device is an electric hoist, and the electric hoist is provided with four electric hoists and is controlled by the same remote control switch.
Furthermore, the hoisting support piles are provided with four groups and are respectively positioned at the front end and the rear end of the left side and the right side of the navigable pore bridge plate, a support beam is arranged on the hoisting support piles, and the upper portion of the support beam is connected with the hoisting cross beam.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model discloses a whole promotion formula steel trestle of navigation hole adopts whole promotion formula steel trestle, sets up the braking mound respectively in the lane both sides and is used for adjusting the structure difference in height of bailey roof beam and shaped steel roof beam, and shaped steel roof beam superstructure compares with bailey roof beam superstructure, and the structure height reduces to reduce and promote and descend the height, reduced the construction risk, reduced the potential safety hazard;
2. the utility model discloses a navigation hole whole lifting type steel trestle, gallows structure adopt along the bridge type vertical gallows structure, through set up the hoist and mount crossbeam at hoist and mount stake top, the hoist and mount crossbeam is arranged along the bridge direction, have solved the problem of the normal current mutual interference of traditional leap-over type horizontal gallows structure and hoisting device, gallows structure safety and stability, construction cost reduces;
3. the utility model discloses the whole promotion formula steel landing stage in navigation hole sets up four electric block in hoist and mount crossbeam lift point position, and four electric block adopt same remote switch control, make four electric block can the synchronous working or stop to the steady efficient that has ensured the whole promotion formula steel landing stage in navigation hole promotes and descends.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of the integral lifting type steel trestle for navigation holes of the utility model;
FIG. 2 is a schematic structural view of a steel trestle with a navigation hole and a non-navigation hole of the utility model;
FIG. 3 is a schematic structural diagram of the whole lifting type steel trestle with navigation holes after lifting;
fig. 4 is the utility model discloses whole promotion formula steel landing stage in navigation hole promotes trailing flank structure sketch map.
In the figure: the method comprises the following steps of 1-steel plate, 2-main beam, 3-brake pier, 4-hoisting support pile, 5-hoisting beam, 6-support beam, 7-hoisting beam, 8-electric hoist, 9-non-navigable pore bridge plate, 10-beam and 11-Bailey beam.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, this embodiment provides whole promotion formula steel trestle in navigation hole to the construction of the whole promotion formula steel trestle in navigation hole of the east sand bridge is the example, and whole promotion formula steel trestle in navigation hole includes navigation hole bridge plate, girder 2 and braking mound 3. Specifically, the method comprises the following steps:
the navigation hole bridge plate is a steel plate 1, the thickness of the steel plate is 10mm, the main beam 2 is located below the steel plate 1 and is made of HN 600X 200 section steel, and the steel plate 1 and the main beam 2 are welded discontinuously.
The integral lifting and descending hoisting structure conventionally adopts a traditional crossing type transverse hoisting frame structure, namely, a hoisting crossbeam 7 of the hoisting frame structure transversely crosses over the steel trestle bridge floor, the hoisting crossbeam 7 is erected on hoisting support piles 4 at two sides of the steel trestle, and the integral lifting and descending of the steel trestle are realized by hoisting a hoisting crossbeam 5 below the steel trestle bridge floor through a hoisting system on the hoisting crossbeam 7. But the normal current of hoisting device will be influenced to horizontal gallows structure's hoist and mount crossbeam 7 when traditional happy chopsticks, if the normal current of hoisting device of full consideration, then the height of hoisting support stake 4 above the steel trestle bridge floor will reach 10m, and construction cost increases, and hoisting structure's security and stability reduce.
Must select and establish structural model through technical scheme and carry out the atress analysis calculation, the gallows structure of this embodiment adopts along the vertical gallows structure of bridge type, through set up hoist and mount crossbeam 7 at the top of hoist and mount support stake 4, hoist and mount crossbeam 7 is along the mode of bridge direction arrangement, has solved the problem of the normal current mutual interference of traditional crossing type horizontal gallows structure and hoisting device, gallows structure safety and stability, construction cost reduces. The specific scheme is as follows:
as shown in fig. 1-4, the hanger structure comprises two lifting crossbeams 5, two lifting crossbeams 7, two lifting devices and two lifting support piles 4, wherein the two lifting crossbeams 5 are transversely arranged at the front end and the rear end below the main beam 2, and the length of the lifting crossbeams 5 is larger than the width of the steel plate 1, so that the lifting devices can drive the lifting crossbeams 5 to ascend and descend at the left end and the right end of the lifting crossbeams 5, and further drive the whole lifting type steel trestle with navigation holes to ascend and descend. Four groups of hoisting support piles 4 are arranged and are respectively positioned at the front end and the rear end of the left side and the right side of the navigation hole bridge plate, and a support beam 6 is arranged on each hoisting support pile 4. The hoisting cross beams 7 are two, and each hoisting cross beam 7 is supported by two supporting beams 6 arranged in the longitudinal direction, so that the arrangement of the hoisting cross beams 7 along the bridge direction is realized. Lifting device is electric block 8, and it is equipped with four and is located two front and back both ends of hoisting crossbeam 7 respectively, realizes hoisting crossbeam 5's promotion and decline at two both ends of hoisting crossbeam 5 respectively, and four electric block 8 make four electric block 8 can synchronous working or stop through same remote switch control to the steady efficient of guarantee navigation hole whole lifting type steel trestle promotes and descends.
Conventional promotion and descending device generally adopt finish rolling screw-thread steel and vertical jack to promote and descend, need the manual work to operate, and work efficiency is lower, and the synchronism is relatively poor, and in the operation process, constructor need through gallows structure about the cat ladder, has great potential safety hazard. In the integral lifting process of the steel trestle bridge deck with the through holes, the lifting height is generally controlled by visual inspection, and the lifting height of the bridge deck is difficult to accurately control.
Through carrying out technical research to promotion and decline system, at the construction of east husky bridge through navigation hole whole promotion formula steel trestle, electric block's specification is 10t, and steel trestle design bridge floor elevation is +5.20m, when considering design high water level +3.45m, and through navigation hole channel headroom height satisfies 8.5m requirement, then the steel trestle bridge floor needs whole promotion 6.75 m. The electric block that sets up has a hoisting height of 9m, and it is 7m/min to promote and transfer the speed, can guarantee that the smooth efficient of navigation hole steel trestle bridge floor promotes and descends in 1min, and the promotion height satisfies the clear requirement of channel.
Be non-navigation hole steel trestle around the whole promotion formula steel trestle of navigation hole, non-navigation hole bridge 9, crossbeam 10 and bailey roof beam 11 that non-navigation hole steel trestle set up from top to bottom in proper order, non-navigation hole bridge 9 and navigation hole bridge are on same horizontal plane, highly being higher than of bailey roof beam 11 the height of girder 2.
In this embodiment, girder superstructure compares with bailey roof beam superstructure, and the structure height reduces 1.06m to 1.06 m's promotion and descending height have been reduced, the construction risk is reduced, the potential safety hazard is reduced. The non-navigation hole bridge plate is also a 10mm steel plate, and the beam 10 adopts an I16 beam. The braking pier 3 is provided with two supporting structures which are used for supporting the front end and the rear end of the main beam so as to adjust the structural height difference of the Bailey beam and the main beam. Through the research to the whole promotion formula steel trestle construction technology of navigation hole, it is two not wrong to have realized on the bridge that vehicle traffic and the navigation of boats and ships under the bridge are under the bridge from the technology, through the adjustment and the optimization of gallows structure to the steel trestle structure of navigation hole and the technical research of promotion and decline system, promote and descend the height to have reduced, the problem of the normal current mutual interference of traditional formula horizontal gallows structure of striding over and hoisting device has been solved, the synchronous efficient promotion of navigation hole steel trestle bridge floor has been realized and has descended, the construction risk has been reduced, the potential safety hazard has been reduced.
It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (9)
1. Whole promotion formula steel trestle in navigation hole, its characterized in that includes:
a navigation hole bridge plate;
the main beam is arranged below the navigable hole bridge plate;
the braking piers are used for supporting the front end and the rear end of the main beam;
the hoisting cross beam is transversely arranged below the main beam, and the length of the hoisting cross beam is greater than the width of the navigation hole bridge plate;
the hoisting cross beams are arranged on the left side and the right side of the navigable pore bridge plate respectively, the hoisting cross beams are longitudinally arranged along the navigable pore bridge plate, and the height from the hoisting cross beams to the water surface is higher than that from the navigable pore bridge plate to the water surface;
the lifting device is positioned on the hoisting cross beam and used for driving the hoisting cross beam to ascend and descend;
and the hoisting support pile is positioned below the hoisting cross beam and is used for supporting the hoisting cross beam.
2. The integrally elevated steel trestle of claim 1, wherein non-steel trestles are provided in front of and behind the integrally elevated steel trestle of said navigable hole.
3. The integrally lifting steel trestle with navigation holes of claim 2, wherein the non-navigation hole steel trestle comprises a non-navigation hole bridge plate, a cross beam and a Bailey beam which are sequentially arranged up and down, and the non-navigation hole bridge plate and the navigation hole bridge plate are on the same horizontal plane.
4. The integrally elevated steel through-hole trestle of claim 3, wherein the height of the Bailey beam is higher than the height of the main beam.
5. The integrally elevated navigable pore steel trestle of claim 1, wherein the navigable pore bridge plate is a steel plate.
6. The integrally hoisted steel trestle of navigable holes of claim 1, wherein the main beams are section steel beams.
7. The integrally lifting type steel trestle for navigation holes of claim 1, wherein two lifting cross beams are arranged and are respectively positioned at the front end and the rear end of the main beam.
8. The integrally lifting steel trestle for navigation holes of claim 7, wherein the lifting device is an electric hoist, and the electric hoist is provided with four pieces and is controlled by the same remote control switch.
9. The integrally lifting type steel trestle for navigation holes of claim 1, wherein four groups of hoisting support piles are arranged and are respectively arranged at the front end and the rear end of the left side and the right side of the bridge plate for navigation holes, a support beam is arranged on each hoisting support pile, and the upper part of each support beam is connected with the hoisting cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120126133.9U CN214271728U (en) | 2021-01-18 | 2021-01-18 | Integral lifting type steel trestle for navigation hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120126133.9U CN214271728U (en) | 2021-01-18 | 2021-01-18 | Integral lifting type steel trestle for navigation hole |
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| Publication Number | Publication Date |
|---|---|
| CN214271728U true CN214271728U (en) | 2021-09-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120126133.9U Active CN214271728U (en) | 2021-01-18 | 2021-01-18 | Integral lifting type steel trestle for navigation hole |
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| CN (1) | CN214271728U (en) |
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2021
- 2021-01-18 CN CN202120126133.9U patent/CN214271728U/en active Active
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