CN210031458U - Large-span height difference tie bar arch structure pushing mechanism - Google Patents
Large-span height difference tie bar arch structure pushing mechanism Download PDFInfo
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- CN210031458U CN210031458U CN201920292171.4U CN201920292171U CN210031458U CN 210031458 U CN210031458 U CN 210031458U CN 201920292171 U CN201920292171 U CN 201920292171U CN 210031458 U CN210031458 U CN 210031458U
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Abstract
The utility model discloses a large-span difference in height tie rod arch structure thrustor constructs, include a plurality of top pushes away interim mounds of arranging along tie rod arch structure's horizontal migration direction, the top that pushes away interim mounds is equipped with the walking jack that has removal in level and two vertical directions, and the horizontal migration direction of walking jack is unanimous with tie rod arch structure's horizontal migration direction, and the top of the interim mound in top still is provided with height-adjustable's backing block group. The utility model discloses a earlier vertical lift of the walking jack of multiple spot position horizontal migration again realizes that the component is horizontal, vertical removal on the pushing equipment, and the whole difficult problem that removes and finally take one's place to the river opposite bank of solution arch bridge is through adjusting the cushion difference in height, solves the bottom surface difference in height problem of tie rod arch structure to can effectual improvement efficiency of construction.
Description
Technical Field
The utility model relates to a large-span steel construction technical field especially relates to a large-span difference in height tie rod arch structure pushing mechanism.
Background
At present, the development of building engineering is advanced with time and is changing day by day, and the requirements on construction technology and construction quality are higher and higher. The large-span steel structure is widely applied to construction engineering, but most of steel structures have the characteristics of large span, great self weight and special shape, and great difficulty is brought to site operation. Especially in the construction environment with limited field and limited construction machinery, the hoisting machinery can not meet the installation requirement, and the common pushing and sliding mechanisms or sliding methods in the engineering are complex and have high manufacturing cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect, provide a large-span difference in height tie rod arch structure pushing mechanism, can realize the horizontal migration of tie rod arch structure, solve the poor problem of bottom surface height to can effectual improvement efficiency of construction.
The utility model provides a large-span difference in height tie rod arch structure pushing mechanism, its characterized in that: the device comprises a plurality of pushing temporary piers arranged along the horizontal moving direction of a tied arch structure, wherein the top of each pushing temporary pier is provided with a walking jack moving in the horizontal and vertical directions, the horizontal moving direction of the walking jack is consistent with the horizontal moving direction of the tied arch structure, and the top of the top temporary pier is also provided with a cushion block group with adjustable height.
In some embodiments of the large-span difference in height tie-bar arch structure pushing mechanism, the mechanism further comprises a guide beam connected to both ends of the tie-bar arch structure and extending outward in a horizontal moving direction of the tie-bar arch structure, and a bottom surface of the guide beam is flush with bottom surfaces of both ends of the tie-bar arch structure.
In some embodiments of the large-span difference-in-height tied-arch structure pushing mechanism, the walking jack includes a horizontal jack, a vertical jack, a slide way and a slide block, the slide way is arranged on the top of the pushing temporary pier along the horizontal moving direction of the tied-arch structure, the slide block is slidably arranged in the slide way, the horizontal jack is mounted at one end of the slide way, a push rod of the horizontal jack is connected to the slide block, and the vertical jack is mounted on the slide block.
In some embodiments of the large-span height difference tie-rod arch structure pushing mechanism, the tie-rod arch structure includes a bottom tie beam and an arch rib, two ends of the arch rib are welded and fixed with two ends of the bottom tie beam, and a rigid diagonal brace is hinged between the bottom tie beam and the arch rib through a hinge brace seat.
In some embodiments of the large-span difference in height tied-arch structure pushing mechanism, the cushion set includes a plurality of cushion blocks stacked on each other, and the height of the cushion set is adjusted by changing the number of the stacked cushion blocks.
In some embodiments of the large-span difference-in-height tied-arch structure pushing mechanism, a backing plate is detachably disposed on the top of the walking jack.
In some embodiments of the large-span difference-in-height tied-arch structure thrusting mechanism, each of the thrusting temporary piers includes a plurality of bottom support piles, inter-pile connecting rods connected between the bottom support piles, and pile caps and H-beam distribution beams connected to tops of the bottom support piles.
In some embodiments of the large-span difference tied-arch structure pushing mechanism, a plurality of pushing temporary piers are connected with a linking truss.
The utility model provides a pushing mechanism forms pushing mechanism through pushing away interim mound, walking jack and adjusting pad combination. The utility model provides a top pushing method of top pushing mechanism is through earlier vertical rising of the walking jack of multiple spot position horizontal migration again realize that the component is horizontal, vertical removal on the top pushing equipment, solves the whole difficult problem that moves and finally take one's place to the river opposite bank of arch bridge and through adjusting the cushion difference in height, solves the bottom surface difference in height problem of tie rod arch structure to can effectual improvement efficiency of construction. The rigid inclined strut has the function of ensuring the integral stability and deformation control of the steel arch bridge in the pushing process, and the guide beam has the function of reducing the stress and deformation of the structure of the arch bridge in the pushing process.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 shows an exemplary schematic plan view of a large-span differential height tied-arch structure thrusting mechanism according to an embodiment of the present invention.
Fig. 2 shows an exemplary elevation schematic view of a large span differential height tie-rod arch structure thrusting mechanism according to an embodiment of the invention.
Fig. 3 shows an exemplary structure diagram of a pushing temporary pier in the pushing mechanism according to the embodiment of the present invention.
Fig. 4 shows an exemplary schematic plan view of a guide beam in a thrusting mechanism according to an embodiment of the invention.
Fig. 5 shows an exemplary front view of a mounting structure of a walking jack in a jack mechanism according to an embodiment of the present invention.
Fig. 6 shows an exemplary top view schematic of a mounting structure of a walking jack in a jack mechanism according to an embodiment of the present invention.
Fig. 7 shows an exemplary side view of a mounting structure of a walking jack in a jack mechanism according to an embodiment of the present invention.
Fig. 8 shows an exemplary schematic front view of a connection structure of a tie rod arch structure, a rigid diagonal brace and a hinged brace in a thrusting mechanism according to an embodiment of the present invention.
Fig. 9 shows an exemplary side view of a connection structure of a tie rod arch structure, a rigid diagonal brace, and a hinged brace in a thrusting mechanism according to an embodiment of the present invention.
Fig. 10 illustrates an exemplary partial, elevational schematic view of a guide beam in a thrusting mechanism according to an embodiment of the present invention.
The correspondence of the labels to the names in the drawings is as follows:
1-cushion block I, 2-cushion block II, 3-jack footstock, 4-walking jack, 5-dip steel plate, 6-support base, 7-rigid diagonal brace, 8-tie rod arch structure, 9-pushing temporary pier, 91-supporting pile, 92-inter-pile connecting rod, 93-pile cap, 94-H section steel distribution beam, 95-connection truss and 10-guide beam.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a large-span difference in height tie rod arch structure pushing mechanism forms pushing mechanism through pushing away interim mound, walking jack and adjusting pad combination. The utility model provides a top pushing method of top pushing mechanism is through earlier vertical rising of the walking jack of multiple spot position horizontal migration again realize that the component is horizontal, vertical removal on top pushing equipment, solves the whole difficult problem that moves and finally take one's place to the river opposite bank of arch bridge and through adjusting the cushion difference in height, solves the bottom surface difference in height problem of tie rod arch structure to can effectual improvement efficiency of construction. The rigid inclined strut has the function of ensuring the integral stability and deformation control of the steel arch bridge in the pushing process, and the guide beam has the function of reducing the stress and deformation of the structure of the arch bridge in the pushing process.
Referring to fig. 1 and 2, fig. 1 shows an exemplary plane schematic diagram of a large-span difference in height tie-rod arch structure pushing mechanism according to the embodiment of the present invention, and fig. 2 shows an exemplary elevation schematic diagram of a large-span difference in height tie-rod arch structure pushing mechanism according to the embodiment of the present invention, as shown in the figure, the present invention discloses a large-span difference in height tie-rod arch structure pushing mechanism mainly comprises a pushing temporary pier 9, a walking jack 4 and a height-adjustable pad group three parts, for horizontal movement of a tie-rod arch structure 8.
The tie rod arch structure 8 in this embodiment adopts a steel arch bridge, including bottom tie beam and arch rib, the both ends arch feet of arch rib and the both ends welded fastening of bottom tie beam, cooperation figure 2, it is shown in figure 8 and figure 9, it is connected with multichannel rigidity bracing 7 to articulate through propping seat 6 between the bottom tie beam of steel arch bridge and the arch rib, prop seat 6 need welded fastening in advance on the bottom tie beam and the arch rib of tie rod arch structure 8, prop seat 6 and adopt articulated seat, weld in the lower plate of arch rib and the upper crown plate of bottom tie beam, prop seat 6 and be provided with the round pin axle otic placode hole, rigidity bracing 7 adopts the rigidity pipe, the slope sets up, both ends welded fastening otic placode, the otic placode at rigidity bracing 7 both ends rotationally connects in the round pin axle otic placode hole of propping seat 6 on arch rib and bottom tie beam through the round pin axle respectively. The rigid inclined strut 7 and the strut seat 6 are suitable for deformation control and stability control of the steel arch bridge in the pushing process after the steel arch bridge is assembled.
Further, as shown in fig. 3, 5 and 7, the number of the pushing temporary piers 9 is determined according to the horizontal moving distance of the steel arch bridge, and a plurality of pushing temporary piers 9 are fully paved at the bottom of the steel arch bridge along the horizontal moving direction of the steel arch bridge to serve as pushing load-bearing structural points, so that a pushing load-bearing surface is formed at the bottom of the steel arch bridge and can be used for pushing and assembling the steel arch bridge. The pushing temporary pier 9 comprises temporary supporting piles 91, pile connecting rods 92 connecting the temporary supporting piles 91, pile caps 93 and H-shaped steel distribution beams 94 connected to the tops of the supporting piles 91, wherein the supporting piles 91 can be steel pipes, the lower ends of the supporting piles are fixed in a river channel below the steel arch bridge, and the elevation of the upper ends of the supporting piles tends to the elevation of the bottom surface of the steel arch bridge. The inter-pile connecting rods 92 can be made of circular pipes, and are preferably welded into a whole by using inter-pier connecting trusses 95 before the temporary piers 9 are pushed, so that the overall stability is improved, and the pushing and supporting capacity of the steel arch bridge is improved.
It is shown to cooperate figure 3, fig. 5 ~ 7 again, the utility model discloses in adopt walking jack 4 have level and two vertically mobilizable functions in the direction, wherein, walking jack 4 is prior art, is a specialized tool who plays jack-up displacement, be according to the space three-dimensional position accurate positioning needs of heavy component or main equipment and the professional adjusting device of development, use walking jack and can carry out many reference point displacement control to railway, highway bridge or similar beam member, realize horizontal (X) rectifying, vertical (Y) impels, and the accurate positioning of vertical jacking (Z), walking jack's jacking load is big, the position control precision is high, easy and simple to handle, degree of automation is high. In the present embodiment, only the function of the walking jack 4 capable of moving in both horizontal and vertical directions is applied, as shown in fig. 3 and 5 to 7, an exemplary structure of the walking jack 4 is shown in the figures, the walking jack 4 includes a horizontal jack, a vertical jack, a slide way and a slide block, the slide way is arranged on the top of the pushing temporary pier 9 along the horizontal moving direction of the tied-bar arch structure 8, the slide block is slidably arranged in the slide way, the horizontal jack is mounted at one end of the slide way, and a push rod of the horizontal jack is connected to the slide block, the extension of the push rod of the horizontal jack can drive the slide block to move back and forth along the slide way to advance or retreat along the horizontal direction of the tied-bar arch structure 8, the vertical jack is mounted on the slide block, the vertical jack can move horizontally along with the horizontal movement of the slide block, the push rod of the vertical jack is upward, when the bottom surface of the tied arch structure 8 falls on the, the extension and contraction of the push rod of the vertical jack can control the height of the tied arch structure 8. The top surface of a push rod of the vertical jack can be provided with a plurality of backing plates, the backing plates adopt the shoveling and cushioning steel plates 5, and the height difference problem of the tied arch structure 8 can be met by adjusting the number of the shoveling and cushioning steel plates 5 according to the elevation of the lower bottom surface of the tied arch structure 8.
The top of the top temporary pier 9 is further provided with a cushion block group with adjustable height, as shown in fig. 5, the cushion block group comprises a plurality of cushion blocks I1 and cushion blocks II 2 which are mutually overlapped, the height of the cushion block group is adjusted by changing the overlapping number of the cushion blocks, and the cushion block group is arranged on the front side and the rear side of the horizontal moving direction of the walking jack 4 and can support the tied arch structure 8 above. The top surface elevation of the cushion block group is consistent with the top surface elevation of the walking jack 4 in the initial state (under the state that the vertical jack is not ejected). The overall supporting height of the cushion block group is adjusted by adjusting the quantity of the cushion blocks I1 and II 2, and the height difference problem of the tied arch structure 8 can be met by adjusting the supporting height of the cushion block group according to the elevation of the lower bottom surface of the tied arch structure 8.
As shown in fig. 2, 4 and 10, the front and rear ends of the tied arch structure 8 are respectively provided with a guide beam 10 for lengthening the bottom tie beam, and the guide beam 10 can be made of variable cross-section i-shaped steel and is welded with the front and rear arch feet of the steel arch bridge. The bottom surface of the guide beam 10 is flush with the bottom surfaces of the two ends of the steel arch bridge. The guide beam 10 plays a role in extending two ends of the steel arch bridge, the guide beam 10 at the front end can extend to the pushing temporary pier 9 at a distance in front of the steel arch bridge, and the guide beam 10 at the rear end can extend to the pushing temporary pier 9 at a distance behind the steel arch bridge, so that the overhang of the steel arch bridge is reduced. When the steel arch bridge and the guide beam 10 integrally move, the guide beam 10 and the steel arch bridge integrally fall on the pushing mechanism for reducing the horizontal stress of the bottom tie beam of the steel arch bridge.
The following further explains how the pushing mechanism of the embodiment of the present invention realizes the pushing construction of a large-span height difference tied arch structure. The utility model provides a large-span difference in height tie rod arch structure top pushes away method mainly includes following step:
the method comprises the following steps: constructing pushing temporary piers 9, completing construction of the steel pipe piles and installation of upper distribution beams, installing connection trusses among the temporary piers after the pushing temporary piers are constructed, and arranging the constructed pushing temporary piers along the horizontal moving direction of the tied arch structure to serve as pushing load-bearing structure points;
step two: and a cushion block I1 and a cushion block II 2 are arranged on the distribution beam on the temporary pier 9, a walking jack 3 is arranged, and a leveling steel plate 5 is arranged according to the height of the tied arch structure.
Step three: and (3) installing the support seat 6 in the tied arch structure in advance in a processing plant, assembling the tied arch structure 8 by using a crane, and completing the steel structure welding and anticorrosive coating engineering of the tied arch structure.
Step four: mounting a rigid diagonal brace 7 in a tied arch structure 8;
step five: installing front and rear guide beams 10 of a tied arch structure 8;
step six: trial pushing is carried out by using pushing equipment, the tied arch structure is pushed up and then pushed for a stroke, and formal pushing is carried out after the tied arch structure and the temporary structure are confirmed to be normal.
Step seven: and formally pushing, namely padding a cushion block between the tied arch structure and the walking jack 4 in real time to ensure that each pushing point is closely contacted, and detaching the front guide beam after pushing to a designed position.
Step eight: and arranging a beam falling jack on the abutment to fall the beam to a designed elevation.
Wherein, the pushing process of the seventh step further comprises: starting a push rod of a vertical jack of the walking jack, pushing the push rod of the vertical jack upwards, synchronously jacking the tied arch structure to generate vertical displacement until the tied arch structure leaves the cushion block group, starting the horizontal jack, generating horizontal forward displacement, and driving the tied arch structure to synchronously displace by a propulsion stroke; and then, the vertical jack falls downwards to enable the tied arch structure to fall on a front cushion block I1 and a rear cushion block II 2 of the jack, a push rod of the vertical jack continues to fall downwards until the top surface of the push rod is separated from the tied arch structure, the horizontal jack is horizontally moved back to the original position, the vertical jack is started to jack up the tied arch structure of the next station upwards, the tied arch structure is pushed forward section by section according to the circulation, and the lifting cushion backing plate 5 and the cushion block I1 are continuously drawn out to meet the height difference problem of the tied arch structure according to the elevation of the lower bottom surface of the tied arch structure.
The utility model discloses large-span difference in height tie rod arch structure pushing mechanism's beneficial effect lies in, pushes away pushing mechanism simple structure that the large-span steel construction used according to this top pushing method top, and cushion and nose girder wherein can directly be made by H shaped steel or steel sheet, the job site preparation of being convenient for. And the operation of pushing the large-span double-arch bridge by using the pushing mechanism is simple, the problems of small construction site and large structural span and difficulty in hoisting can be effectively solved, large-scale mechanical equipment of a support is not needed in the pushing construction, the construction is stable, and the method is safe and reliable, so that the construction efficiency and the economic benefit are improved.
It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person can make modifications or changes equivalent to the equivalent embodiment without departing from the scope of the present invention, but all the technical matters of the present invention are within the scope of the present invention.
Claims (8)
1. The utility model provides a large-span difference in height tie rod arch structure thrustor mechanism which characterized in that: the device comprises a plurality of pushing temporary piers arranged along the horizontal moving direction of a tied arch structure, wherein the top of each pushing temporary pier is provided with a walking jack moving in the horizontal and vertical directions, the horizontal moving direction of the walking jack is consistent with the horizontal moving direction of the tied arch structure, and the top of the top temporary pier is also provided with a cushion block group with adjustable height.
2. The large-span difference in elevation tie-bar arch structure thrusting mechanism of claim 1, wherein: the tie rod arch structure comprises a tie rod arch structure and is characterized by further comprising guide beams, wherein the guide beams are connected to two ends of the tie rod arch structure and extend outwards along the horizontal moving direction of the tie rod arch structure, and the bottom surfaces of the guide beams are flush with the bottom surfaces of the two ends of the tie rod arch structure.
3. The large-span difference in elevation tie-bar arch structure thrusting mechanism of claim 1, wherein: the walking jack comprises a horizontal jack, a vertical jack, a slide way and a slide block, wherein the slide way is arranged at the top of the temporary pushing pier along the horizontal moving direction of the tied arch structure, the slide block is arranged in the slide way in a sliding manner, the horizontal jack is arranged at one end of the slide way, a push rod of the horizontal jack is connected to the slide block, and the vertical jack is arranged on the slide block.
4. The large-span difference in elevation tie-bar arch structure thrusting mechanism of claim 1, wherein: the tie bar arch structure comprises a bottom tie beam and arch ribs, arch feet at two ends of each arch rib are welded and fixed with two ends of the bottom tie beam, and rigid inclined struts are hinged between the bottom tie beam and the arch ribs through hinged support seats.
5. The large-span difference in elevation tie-bar arch structure thrusting mechanism of claim 1, wherein: the cushion block group comprises a plurality of cushion blocks which are mutually overlapped, and the height of the cushion block group is adjusted by changing the overlapping number of the cushion blocks.
6. The large-span difference in elevation tie-bar arch structure thrusting mechanism of claim 1, wherein: the top of the walking jack is detachably provided with a backing plate.
7. The large-span difference in elevation tie-bar arch structure thrusting mechanism of claim 1, wherein: each pushing temporary pier comprises a plurality of bottom supporting piles, inter-pile connecting rods connected among the bottom supporting piles, pile caps connected to the tops of the bottom supporting piles and an H-shaped steel distribution beam.
8. The large-span difference in elevation tie-bar arch structure thrusting mechanism of claim 1, wherein: and a connection truss is connected among the pushing temporary piers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920292171.4U CN210031458U (en) | 2019-03-04 | 2019-03-04 | Large-span height difference tie bar arch structure pushing mechanism |
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| CN201920292171.4U CN210031458U (en) | 2019-03-04 | 2019-03-04 | Large-span height difference tie bar arch structure pushing mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958051A (en) * | 2019-03-04 | 2019-07-02 | 中国建筑第八工程局有限公司 | Large span difference in height tie-rod arch structure top-pushing mechanism and pushing method |
| CN114457698A (en) * | 2022-03-21 | 2022-05-10 | 中铁五局集团机械化工程有限责任公司 | Steel box girder circulating grading high-level girder falling method |
| CN115418969A (en) * | 2022-09-30 | 2022-12-02 | 中冶(上海)钢结构科技有限公司 | Construction method for high-position beam falling of large-span through tied steel arch bridge |
-
2019
- 2019-03-04 CN CN201920292171.4U patent/CN210031458U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958051A (en) * | 2019-03-04 | 2019-07-02 | 中国建筑第八工程局有限公司 | Large span difference in height tie-rod arch structure top-pushing mechanism and pushing method |
| CN114457698A (en) * | 2022-03-21 | 2022-05-10 | 中铁五局集团机械化工程有限责任公司 | Steel box girder circulating grading high-level girder falling method |
| CN115418969A (en) * | 2022-09-30 | 2022-12-02 | 中冶(上海)钢结构科技有限公司 | Construction method for high-position beam falling of large-span through tied steel arch bridge |
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