CN209907227U - Girder steel high altitude long distance top pushes away slide device - Google Patents
Girder steel high altitude long distance top pushes away slide device Download PDFInfo
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- CN209907227U CN209907227U CN201920602985.3U CN201920602985U CN209907227U CN 209907227 U CN209907227 U CN 209907227U CN 201920602985 U CN201920602985 U CN 201920602985U CN 209907227 U CN209907227 U CN 209907227U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 78
- 239000010959 steel Substances 0.000 title claims abstract description 78
- 229910001220 stainless steel Inorganic materials 0.000 claims description 17
- 239000010935 stainless steel Substances 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 10
- 238000010276 construction Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The utility model discloses a steel beam high-altitude long-distance pushing slideway device, which comprises a distribution beam, a bearing beam, a track beam and a sliding plate, the bottom of the distribution beam is provided with a threaded connecting hole, a plurality of the distribution beams are arranged transversely and side by side, the bearing beam is longitudinally arranged above each distribution beam, the bottom of the bearing beam is connected with each distribution beam through a threaded fastener, a longitudinal track beam is fixedly arranged above the bearing beam, the track beam comprises a top plate, a bottom plate and a supporting plate, the top plate is arranged above the bottom plate in parallel, a plurality of support plates are supported between the top plate and the bottom plate, a slideway is arranged at the top of the track beam, the sliding plate is arranged on the slideway in a sliding way, the technical problem that the girder body lacks the strong point in pushing the long distance of the longitudinal movement process girder steel when the bridge is built can be solved, and the multi-point support can be provided for the sliding of the girder steel along the slide way.
Description
Technical Field
The utility model relates to a bridge construction equipment technical field especially relates to a girder steel high altitude long distance top pushes away slide device.
Background
Due to the urgent need of the riverside city for river-crossing traffic, the cable-stayed bridge with large crossing capability, beautiful appearance and modern sense becomes the first choice of the river-crossing and river-crossing bridge type in China, and the construction range and the scale are continuously expanded.
With the continuous promotion of highway construction in China, as highways with better construction conditions are basically built or put into use, more highway projects needing to be planned and about to be built appear in mountainous and heavy hill areas with complex terrain and landform conditions, the construction conditions are complex, and serious obstacles are caused to the construction of large bridges. How to build a large bridge in a mountainous area with complex terrain conditions and severe traffic conditions has become an important research direction.
The side span steel beam is constructed by adopting a pushing method, and because the pushing spanning capacity of the steel beam is limited, temporary piers are required to be arranged between permanent piers, and the temporary piers play a temporary supporting role on the beam body in the pushing construction process, so that the beam body is smoothly pushed to the next buttress. When the steel beam moves on the temporary pier slideway, in order to ensure that the steel beam stably moves on the slideway, a sliding plate (walking plate) needs to be arranged between the slideway and the steel beam, and the sliding plate and the steel beam move forwards together to form a friction pair with a sliding surface on the slideway beam.
The MGE sliding plate has good elasticity and impact resistance, and can well eliminate various hazards caused by local high pressure due to uneven track.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a girder steel high altitude long distance top pushes away slide device, can solve the girder steel body and push away the long distance top of in-process girder steel and push away the technical problem that lacks the strong point when building the bridge, can provide the multiple spot support to the slip of girder steel along the slide.
In order to solve the technical problem, the technical scheme of the utility model is that: the utility model provides a girder steel high altitude long distance top pushes away slide device, includes distribution roof beam, spandrel girder, track roof beam and slide, distribution beam bottom is equipped with the threaded connection hole, and is a plurality of the distribution roof beam is horizontal and set up side by side, the spandrel girder vertically sets up in each distribution roof beam top, spandrel girder bottom and each the distribution roof beam passes through threaded fastener and is connected, the fixed fore-and-aft track roof beam that is equipped with in spandrel girder top, the track roof beam includes roof, bottom plate and backup pad, the roof parallel is located the bottom plate top, the roof with it has a plurality ofly to support between the bottom plate the backup pad, be equipped with the slide on the track roof beam.
As a refinement, the chute is an MGE chute.
As a modified mode, the sliding plate is a stainless steel sliding plate, and the top surface of the sliding plate is provided with a bolt accommodating groove.
As an improved mode, the sliding plate comprises a stainless steel bottom plate and a rubber base plate, wherein 2 layers of the rubber base plate are arranged on the stainless steel bottom plate.
As an improved mode, the sliding plate comprises a supporting frame, a leveling steel plate and an MGE plate, the leveling steel plate is fixedly arranged on the upper side and the lower side of the supporting frame respectively, the MGE plate is fixedly arranged at the bottom of the leveling steel plate located below, and steel strand through holes are formed in the front end and the rear end of the supporting frame respectively.
As an improved mode, the supporting frame is formed by splicing a plurality of I-shaped steels, and reinforcing rib plates are arranged between the I-shaped steels.
The technical effect obtained by adopting the technical scheme is as follows:
this application girder steel high altitude long distance top pushes away slide device fixed mounting on interim pier, the slide is located between girder steel and the slide that will push away, carry out the in-process of propelling movement to the girder steel, the slide is antedisplacement together with the girder steel, slide bottom surface and the slide face on the track roof beam form the friction pair, the girder steel long distance top of roof beam body in the top longitudinal movement in-process pushes away when having solved and built the bridge pushes away the technical problem that lacks the strong point, can provide the multiple spot support to the slip of girder steel along the slide, the wearing and tearing to the girder steel bottom have been avoided.
Because the top surface of slide is equipped with bolt and holds the recess, bolt holds the recess and is the circular recess that the diameter is 60 ~ 62 millimeters, and bolt holds the recess and suits with splice plate upper bolt position, and the recess degree of depth is greater than the nut and the gasket height, makes it when splice plate region feeding slide under the roof beam section bolt not outstanding slide surface, and slide stainless steel plate one side down feeding slide and the slide (MGE) on the track roof beam form the friction pair when pushing away.
Because the slide includes stainless steel bottom plate and rubber backing plate, be equipped with 2 layers on the stainless steel bottom plate rubber backing plate, the rubber backing plate is last when feeding the board, with girder steel bottom surface contact, stainless steel board down, with the smooth combination mode in order to reduce frictional force of slide face contact, the slide adopts the backing plate to add the slider, there is two-layer 25mm rubber backing plate (48 mm after the prediction compression) at the slide that does not have the splice plate region promptly, the rubber slab is last when feeding the board, with girder steel bottom surface contact, stainless steel board down, it is smooth with slide face contact.
Because the slide includes support frame, leveling steel sheet and MGE board, the upper and lower both sides of support frame are fixed respectively and are equipped with the leveling steel sheet, are located the below leveling steel sheet bottom is fixed and is equipped with the MGE board, both ends are equipped with steel strand wires respectively around the support frame and perforate, the support frame is formed by a plurality of I-steel concatenations, be equipped with the reinforcing floor between the I-steel. Because the splice plates and the high-strength bolts are arranged at the beam bottoms of the joints of the sections of the steel beams, the bottom surfaces of the whole steel beams are not straight lines longitudinally but are continuous and alternate concave-convex broken lines, in order to ensure that the steel beams move forwards continuously and stably, the longitudinal pushing tracks of the steel beams are continuous straight lines, namely the height of the I-shaped beam bottom surfaces of the steel beams relative to the track elevation is kept unchanged, the slide way beam sliding plate is designed to be combinable in thickness, and different thicknesses are adopted according to the areas with or without the splice plates.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is a schematic structural view of a perforated steel plate according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a slide board according to a first embodiment of the present invention in a side view;
fig. 3 is a schematic view of an installation structure of a first embodiment of the present invention;
fig. 4 is a schematic structural view of a slide plate according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third embodiment of the present invention;
fig. 6 is a schematic side view of a third embodiment of the present invention;
in the figure, 1-distribution beam, 2-bearing beam, 3-track beam, 4-sliding plate, 41-top plate, 42-bottom plate, 43-supporting plate, 51-stainless steel bottom plate, 52-rubber base plate, 40-bolt accommodating groove, 61-supporting frame, 62-leveling steel plate, 60-steel strand perforation, 7-reinforcing rib plate and 8-steel beam.
Detailed Description
Example one
As shown in fig. 1 to 3, the steel beam high-altitude long-distance pushing slideway device comprises a distribution beam 1, a bearing beam 2, a track beam 3 and a sliding plate 4, wherein the bottom of the distribution beam 1 is provided with a threaded connection hole for heavy connection with a temporary pier, a plurality of distribution beams 1 are transversely arranged side by side, and the distribution beam 1 is used for uniformly distributing the steel beam gravity transmitted by the bearing beam 2 to the heavy supporting steel pipe of the temporary pier for bearing pressure.
The bearing beam 2 is longitudinally arranged above each distribution beam 1, the bottom of the bearing beam 2 is connected with each distribution beam 1 through a threaded fastener, and jack reaction frames (not shown in the figure) are symmetrically welded on two sides of the bearing beam 2 and used for jacking and applying force points of the jacks. Longitudinal track roof beam 3 is fixed to be equipped with above spandrel girder 2, and track roof beam 3 includes roof 31, bottom plate 32 and backup pad 43, and roof 31 parallel is located the bottom plate 32 top, supports between roof 31 and the bottom plate 32 to have a plurality of backup pads 43, is equipped with the slide on the track roof beam 3, and the preferred MGE slide that is equipped with of slide. The sliding plate 4 is arranged on the slideway in a sliding way. The track beam 3 is shorter than the bearing beam 2, jacks are arranged on the two ends of the bearing beam 2, and the track beam is used for temporarily supporting the whole steel beam 8 to change the position of the sliding plate 4 after the sliding plate 4 slides the track beam 3.
The top surface of the sliding plate 4 is provided with a bolt accommodating groove 40, the bolt accommodating groove 40 is a circular groove with the diameter of 60-62 mm, the bolt accommodating groove 40 is matched with the position of a bolt on the splice plate, the depth of the groove is greater than the height of a nut and a gasket, so that the bolt does not protrude out of the surface of the sliding plate 4 when the sliding plate 4 is fed into the splice plate area under the beam section, and one side of a stainless steel plate of the sliding plate 4 is fed downwards to form a friction pair with the sliding plate 4(MGE) on the track beam 3 during pushing. The static friction coefficient of the bottom surface of the sliding plate 4 and the sliding track surface is 0.07-0.08, and the dynamic friction coefficient of the bottom surface of the sliding plate 4 and the sliding track surface is 0.04-0.05.
Example two
As shown in fig. 4, the structure of the present embodiment is substantially the same as that of the first embodiment, except that the sliding plate 4 includes a stainless steel bottom plate 51 and a rubber pad 52, 2 layers of the rubber pad 52 are disposed on the stainless steel bottom plate 51, the rubber pad 52 is disposed on the top and contacts with the bottom surface of the steel beam 8 when feeding the sliding plate, the stainless steel plate faces downward and contacts with the sliding surface to reduce the friction, the sliding plate 4 adopts a combination of pad and slider, that is, two layers of 25mm rubber pads 52 (48 mm after compression) are disposed on the sliding plate 4 in the area without splice plate, the rubber plate is disposed on the top and contacts with the bottom surface of the steel beam 8 when feeding the sliding plate, the stainless steel plate faces downward and contacts with the sliding surface, and the size of the rubber pad 52 is.
EXAMPLE III
As shown in fig. 5 and 6, the present embodiment has substantially the same structure as the first embodiment, except that the skateboard 4 includes a support frame 61, leveling steel plates 62 and an MGE plate, the leveling steel plates 62 are respectively fixedly disposed on the upper and lower sides of the support frame 61, the MGE plate is fixedly disposed at the bottom of the leveling steel plate 62 located below, the steel strand through holes 60 are respectively disposed at the front and rear ends of the support frame 61, the support frame 61 is formed by splicing a plurality of i-beams, and the reinforcing rib plate 7 is disposed between the i-beams. Because the splice plates and the high-strength bolts are arranged at the beam bottoms of the joints of all the sections, the bottom surface of the whole steel beam 8 is not a straight line longitudinally but a continuous and alternate concave-convex broken line, in order to ensure that the steel beam 8 continuously and stably moves forwards, the pushing longitudinal track of the steel beam 8 is a continuous straight line, namely the elevation of the relative track of the bottom surface of the I-shaped beam of the steel beam 8 is kept unchanged, the slide rail beam sliding plate 4 is designed to be combinable in thickness, and different thicknesses are adopted according to areas with or without the splice plates.
The application method of the steel beam high-altitude long-distance pushing slideway device comprises the following steps:
1. and (4) calculating and analyzing according to each construction stage to obtain the counterforce of each pier top support to determine the top thrust so as to meet the requirements of stress, deformation and stability. The friction force, the static friction force and the dynamic friction force are calculated according to the support reaction force of each pier top and respectively correspond to the steel beam 8 pushing starting state and the normal advancing state, the friction coefficient can be obtained according to a test, and no test data can be consulted for related data.
2. In the pushing process, continuous pushing is completed as far as possible without intermission. In the pushing process, the pushing force needs to be adjusted in real time, namely 'real-time pressure adjustment'. The slide must be cleaned before each ejection.
In the process of pushing the steel beam 8, the number of the sliding plates 4 at the bottom of the steel beam 8, which is required to be the minimum, is determined according to the maximum counter force possibly generated on each temporary pier and the allowable bearing stress of the surface of the slide way, the MGE sliding plates 4 on the surfaces of the slide ways are calculated according to the allowable stress of 8MPa, 4 perforated steel plates are fed into splicing plates of a main beam bottom plate 42, and the bearing stress calculation meets the allowable stress requirement of the MGE sliding plates 4.
Claims (6)
1. The utility model provides a girder steel high altitude long distance top pushes away slide device, a serial communication port, including distribution roof beam, spandrel girder, track roof beam and slide, distribution roof beam bottom is equipped with threaded connection hole, and is a plurality of the distribution roof beam is horizontal and set up side by side, the spandrel girder vertically set up in each distribution roof beam top, spandrel girder bottom and each the distribution roof beam passes through threaded fastener and is connected, the fixed fore-and-aft track roof beam that is equipped with in spandrel girder top, the track roof beam includes roof, bottom plate and backup pad, the roof parallel is located the bottom plate top, the roof with it has a plurality ofly to support between the bottom plate the backup pad, be equipped with the slide on the track roof.
2. The steel beam high-altitude long-distance pushing slideway device according to claim 1, wherein the slideway is an MGE slideway.
3. The steel beam high-altitude long-distance pushing slideway device according to claim 1, wherein the sliding plate is a stainless steel sliding plate, and a bolt accommodating groove is formed in the top surface of the sliding plate.
4. The steel beam high-altitude long-distance pushing slideway device according to claim 1, wherein the sliding plate comprises a stainless steel bottom plate and a rubber base plate, and 2 layers of the rubber base plate are arranged on the stainless steel bottom plate.
5. The steel beam high-altitude long-distance pushing slideway device as claimed in claim 1, wherein the sliding plate comprises a support frame, leveling steel plates and an MGE plate, the leveling steel plates are respectively fixed on the upper and lower sides of the support frame, the MGE plate is fixed on the bottom of the leveling steel plate located below, and steel strand through holes are respectively arranged at the front end and the rear end of the support frame.
6. The steel beam high-altitude long-distance pushing slideway device according to claim 5, wherein the supporting frame is formed by splicing a plurality of I-shaped steels, and reinforcing rib plates are arranged between the I-shaped steels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920602985.3U CN209907227U (en) | 2019-04-29 | 2019-04-29 | Girder steel high altitude long distance top pushes away slide device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920602985.3U CN209907227U (en) | 2019-04-29 | 2019-04-29 | Girder steel high altitude long distance top pushes away slide device |
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| Publication Number | Publication Date |
|---|---|
| CN209907227U true CN209907227U (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920602985.3U Expired - Fee Related CN209907227U (en) | 2019-04-29 | 2019-04-29 | Girder steel high altitude long distance top pushes away slide device |
Country Status (1)
| Country | Link |
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| CN (1) | CN209907227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668302A (en) * | 2021-08-27 | 2021-11-19 | 中铁二十三局集团有限公司 | Beam-on-beam conveying device suitable for double-line magnetic floating track beam and beam erecting method |
-
2019
- 2019-04-29 CN CN201920602985.3U patent/CN209907227U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113668302A (en) * | 2021-08-27 | 2021-11-19 | 中铁二十三局集团有限公司 | Beam-on-beam conveying device suitable for double-line magnetic floating track beam and beam erecting method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200107 |