CN108560430A - Operation platform and its application process - Google Patents
Operation platform and its application process Download PDFInfo
- Publication number
- CN108560430A CN108560430A CN201810404101.3A CN201810404101A CN108560430A CN 108560430 A CN108560430 A CN 108560430A CN 201810404101 A CN201810404101 A CN 201810404101A CN 108560430 A CN108560430 A CN 108560430A
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- Prior art keywords
- frame body
- bridge
- operation platform
- platform
- construction
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/10—Cantilevered erection
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to technical field of bridge construction, more particularly to a kind of operation platform and its application process.The platform for bridge construction includes the frame body and position regulator to form construction channel, and the position regulator is realizing that the frame body moves on the bridge, and the relatively described bridge rises or falls.The present invention is not necessarily on ground build supporter, frequently need not dismount and replace in work progress, across carrying out constructing operation on the bridge in highway, railway, river etc. suitable on.
Description
Technical field
The present invention relates to technical field of bridge construction, more particularly to a kind of operation platforms and its application for bridge construction
Method.
Background technology
During bridge applies free cantilever erection, when the steel strand wires in bridge subsection carry out prestressed stretch-draw, inevitably need
Want operation platform that can just be smoothed out constructing operation.
Prestressed stretch-draw is to add pulling force in advance in component so that it is applied in prestressed stretch-draw component and bears tensile stress, into
And it is made to generate certain deformation, to cope with the suffered load of structure itself, including the load of component own wt, wind lotus
Load, snow load, seismic loading etc..
Prefabricated bridge subsection after free cantilever erection, is needing to carry out prestressed stretch-draw to steel strand wires therein, and pre-
Stress tension platform is a kind of operation platform in order to steel strand wires progress prestressed stretch-draw in bridge subsection, this construction
The provisional hoisting machine of platform generally use suspends the operation platform of a frame-type in midair to the construction position for needing prestressing force pulling process
It sets or prestressing force pulling process is carried out as operation platform using the hanging basket being fixed on bridge.The construction of both forms
Platform needs frequently to dismount and replace, has seriously affected project progress, and spirit with the extension of the bridge subsection of free cantilever erection
Poor activity, inconvenient for operation, site requirements is high, is not suitable for carrying out prestressing force on the bridge in high-flying highway, railway, river etc.
Draw constructing operation.
Invention content
One of the objects of the present invention is to provide a kind of operation platform and its application processes, to solve existing operation platform
It needs frequently to dismount and replace in bridge construction, site requirements is high, flexibility difference problem；
It is another object of the present invention to solve traditional operation platform to be not suitable in high-flying highway, railway, river etc.
The technical issues of constructing operation is carried out in bridge.
In order to solve the above technical problems, the present invention provides a kind of operation platform, for carrying out constructing operation, packet to bridge
It includes：
Frame body, to form construction channel；And
Position regulator, to realize that the frame body moves on the bridge, and relatively the bridge rise or
Decline.
Further, the position regulator includes：
Mobile unit, to realize that the frame body moves on the bridge；And
Lifting unit, to connect the frame body and mobile unit, and realize the frame body bridge relatively rise or
Decline.
Further, the mobile unit includes first movement unit and the second movement being connect with the first movement unit
Unit, wherein the first movement unit, to realize that the frame body moves on the bridge, second mobile unit is used
To realize that the frame body and lifting unit are moved relative to the first movement unit.
Optionally, the first movement unit is the setting up girder for building a bridge.
Further, second mobile unit includes running part and interconnecting piece, and the running part includes setting described the
Guide rail in one mobile unit, and be in contact and matched idler wheel with the guide rail；
The interconnecting piece connects the lifting unit to support the idler wheel.
Optionally, the idler wheel is driven using motor.
Further, shown operation platform further includes the device for limiting being connect with the position regulator, along the frame
The lifting direction of body forms the liftway of the frame body.
Further, the device for limiting is equipped with the limit that several extending directions along the liftway are spaced apart
Hole；
The frame body, which is equipped with, can pass through axis pin and the fixed location hole of the limit hole.
Further, it is equipped with extendable platform in the construction channel, platform is equipped between the extendable platform and the frame body
Mobile unit, to realize that the extendable platform moves back and forth in the construction channel.
Further, it there are two the extendable platforms, is oppositely arranged in the construction channel.
Further, the platform mobile unit includes guide rail, and with the guide rail contact and matched idler wheel, it is described to lead
Rail is arranged on the extendable platform, and the idler wheel is arranged on the frame body.
Optionally, the operation platform is used for steel strand prestress tensioning in the bridge subsection using erection by protrusion construction
Constructing operation.
Optionally, the lifting unit is chain block.
Likewise, the present invention also provides a kind of application process of operation platform, the operation platform include a frame body and
Position regulator, the application method include the following steps：
S1：The operation platform is placed on bridge；
S2：The vertical distance of the frame body and construction location is adjusted by the position regulator；
S3：The horizontal distance of the frame body and construction location is adjusted by the position regulator；
S4：After constructing operation, position of the operation platform on the bridge is adjusted by the position regulator.
Further, when construction need to be continued, according to the operation platform with respect to the vertical distance of construction location and it is horizontal away from
From repeat the above steps S2 and/or S3 and/or S4；
When needing not continue to construction, the operation platform is removed from the bridge.
Compared with prior art, it is an advantage of the invention that：
Frame body is suspended on bridge by position regulator, therefore frame body can be flexible by position regulator
The construction channel moved on bridge, and formed by frame body is not necessarily to build supporter on ground, is not required in the construction process
It frequently to dismount and replace, suitable for carrying out constructing operation on the bridge in high-flying highway, railway, river etc..
Description of the drawings
Fig. 1 is operation platform provided in an embodiment of the present invention and the matched front schematic view of bridge；
Fig. 2 is operation platform provided in an embodiment of the present invention and the matched side schematic view of bridge；
Fig. 3 is operation platform partial structural diagram provided in an embodiment of the present invention.
Specific implementation mode
According to aforementioned it is found that when the steel strand wires in bridge subsection carry out prestressed stretch-draw, traditional mode is using interim
Property hoisting machine (such as automobile lifting appliance) suspended the operation platform of a frame-type in midair to construction location, or using fixing
Hanging basket on bridge carries out prestressing force pulling process as operation platform.Prolong however as the bridge subsection of free cantilever erection
Stretch, construction location caused constantly to change, the operation platforms of both forms needs frequently dismounting and replaces, influence engineering into
Degree.Moreover, some bridges across the structures such as existing highway, railway, river, the building of operation platform will face more harsh
Execution conditions, traditional mode is difficult to smoothly complete constructing operation under such execution conditions.For this purpose, the present invention provides
A kind of operation platform, it can flexibly carry out position adjustment on bridge, both be different from traditional fixed hanging basket, also different
In provisional hoisting machine, while frequent disassembling section can also be avoided, can be good at be suitable for crossing highway, railway or
In the constructing operation of the bridge in river etc..
Operation platform proposed by the present invention and its application process are made below in conjunction with the drawings and specific embodiments further detailed
It describes in detail bright.According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that attached drawing is equal
Use using very simplified form and non-accurate ratio, only to it is convenient, lucidly aid in illustrating the embodiment of the present invention
Purpose.
Embodiment 1
As shown in Figure 2, present embodiment discloses a kind of operation platforms 1, for the bridge using erection by protrusion construction
The constructing operation of steel strand prestress tensioning in segment, in the present embodiment, there are two " the dual U-shapeds in channel using tool for the bridge 2
Bridge subsection of the box beam " as bridge cantilever.
It please refers to Fig.1, Fig. 2 and Fig. 3, the operation platform 1 includes frame body 11 and position regulator, wherein the frame body
11 to form construction channel 111, the shortcomings that in order to overcome the prior art, realizes that the relatively described bridge 2 of the frame body 11 generates
Change in location, the position regulator need to realize the extension side of the bridge 2 described in 2 upper edge of the bridge of the frame body 11
To movement, and the bridge 2 rises or falls relatively.Therefore, the operation platform 1 be different from traditional ground supports formula or
The fixed operation platform being fixed on bridge.
In order to enable the position regulator to realize, the frame body 11 moves on the bridge 2, and makes the frame
The bridge 2 relatively of body 11 rises or falls, and the position regulator may include mobile unit and lifting unit 10, wherein
The mobile unit is to realize that the frame body 11 moves on the bridge 2, and the lifting unit 10 is described to connect
Frame body 11 and mobile unit, and realize that the bridge 2 relatively of the frame body 11 rises or falls.Pass through the mobile unit and liter
The cooperation for dropping unit 10, makes the frame body 11 be moved to the construction location on the bridge 2, constructs.
Then, described mobile single in order to achieve the effect that the operation platform 1 can flexibly move on the bridge 2
Member may include first movement unit and the second mobile unit for being connect with the first movement unit, wherein the first movement
Unit is to realize that the frame body 11 moves on the bridge 2, and second mobile unit is realizing 11 He of the frame body
Lifting unit 10 is moved relative to the first movement unit, is adjusted with reaching more accurate position.
Under normal conditions, the bridge constructed can use frame in particular by the bridge that erection by protrusion is constructed
What beam equipment 3 carried out bridge the constructing operations such as builds, pours, and the setting up girder 3 is that a kind of have for lifting bridge subsection
Longeron 31, the preferable constructing device that can be moved on bridge, such as single beam girder erecting machine, double beam girder erecting machine.Therefore
The first movement unit can be setting up girder 31.
As a kind of implementation, second mobile unit includes running part and interconnecting piece 14, and the running part includes
The first guide rail 12 being fixed on the first movement unit, and be in contact and matched first rolling with first guide rail 12
13 are taken turns, double beam girder erecting machine may be used in the first movement unit in the present embodiment, and there are two for lifting bridge for tool
The longeron 31 of segment.In order not to interfere the normal work of the setting up girder 3, first guide rail 12 that can be fixed on the longeron
On 31, while two running parts can also be used, and make two running parts and two on the setting up girder 3 respectively
A longeron 31 is correspondingly connected with.In order to improve second mobile unit in the stability of moving process, first guide rail
12 may be used I-shaped guide rail, and two can be arranged to matched first idler wheel 13 by being in contact with first guide rail 12
Group, and this two groups of idler wheels are located at the both sides of the guide rail, every group may include one or more along first guide rail
The 12 spaced idler wheel of extending direction.
Then, due to the running gear to be connected on the longeron 31 of the setting up girder 3, and first idler wheel
13 need to support in moving process, therefore the interconnecting piece 14 can be used for supporting first idler wheel 13, make described first
Idler wheel 13 forms the state for being distributed in 12 both sides of the first guide rail, and certainly, the interconnecting piece 14 also needs to connect the lifting
Unit 10, to provide lifting support for the lifting unit 10.
In addition, since the interconnecting piece 14 needs to meet above-mentioned functional requirement, so the interconnecting piece 14 can be one
Kind rectangular frame, two running parts are oppositely arranged on the rectangular frame, stress occur to avoid the interconnecting piece 14
Unbalanced situation, and the lifting unit 10 is connect with the rectangular frame.
In addition, first idler wheel 13 can connect motor, to realize that the first movement unit is efficiently and accurate
It is mobile.
In the present embodiment, the rectangular-shape frame that cross section as shown in Figure 2 is rectangle may be used in the frame body 11
Frame structure can be laid with the checkered steel plate with anti-skidding effect in the two sides of the bottom surface of the frame body 11 and its extending direction,
It can carry to be formed, supporting surface construction channel 111 can be provided for construction personnel and construction equipment.
As a kind of preferred embodiment for the present embodiment, the operation platform 1 can also include single with second movement
The device for limiting 15 of member connection, forms the liftway of the frame body 11 along the lifting direction of the frame body 11, to limit
The motion range of the frame body 11.It is rectangular-shape frame structure based on the frame body 11, the device for limiting 15 may be used
Four rod pieces correspond to four vertical edges of the frame body 11 respectively, and the frame body 11 is just located at the liter that four rod pieces are formed
Drop moves up and down in channel.The length of four rod pieces can be set according to actual construction, can also be in phase
Away from connecting cross beam between two closer rod pieces, to be further formed more firm device for limiting.
The frame body 11 forms the construction channel 111, and operating personnel will construct in the construction channel 111,
Therefore it is all uniform at the moment that the distribution of force of the frame body 11, which is not, in order to ensure the frame body 11 not with the frame body 11
The variation of stress point and shaking is generated in perpendicular, can also be arranged on four rod pieces several along the liftway
The limit hole that extending direction is spaced apart；And it is equipped with and can be fixed by axis pin 151 and the limit hole on the frame body 11
Location hole, as a result, the device for limiting 15 can be the frame body 11 provide enough supports and to avoid the frame body
11 generate shaking in perpendicular.
For " dual U-shaped box beam ", lateral length is larger, and 11 required total length of the frame body also can be compared with
Greatly.Usually, the volume of object is bigger, and flexibility is poorer, inconvenient in lifting and transport process, therefore, is
The length of the control frame body 11 is in reasonable range, and the frame body 11 is made to disclosure satisfy that further types of bridge is applied
Extendable platform 16 can be arranged in the construction channel 111 for work, and it is rectangle that the extendable platform 16, which can also be arranged to cross section,
Rectangular-shape frame.Come 1 for the operation platform to say, the extendable platform 16 needs past in the construction channel 111
It is multiple mobile, to realize the active length and working range that extend the construction channel 111, therefore, the extendable platform 16 and institute
It states and is equipped with platform mobile unit between frame body 11, to realize that the extendable platform 16 back and forth moves in the construction channel 111
It is dynamic.
Then, the extendable platform 16 can be arranged two, be oppositely arranged in the construction channel 111, in this way can be with
Improve extension efficiency of the construction channel 111 when extending working range by the extendable platform 16.
In order to enable the platform mobile unit to realize, the extendable platform 16 back and forth moves in the construction channel 111
Dynamic, the platform mobile unit may include the second guide rail 161, and contact with second guide rail 161 and matched second
Idler wheel 162, second guide rail 161 are fixed on the extendable platform 16, and second idler wheel 162 is arranged in the frame body 16
On, in the present embodiment, the frame body 11 and extendable platform 16 are rectangular-shape frame, therefore second guide rail 161 can
To be arranged to two, Relative distribution is in the both sides of 16 extending direction of the extendable platform, of course for making the extendable platform 16
Reciprocating movement range reach maximum, the length of second guide rail 16 can be greater than or equal to the length of the extendable platform 16
Degree, moreover, second idler wheel 162 can be arranged to two groups, the second idler wheel 162 described in every group is led with two described second respectively
Rail 161 corresponds to, in addition, the second idler wheel 162 described in every group can be arranged, there are one idler wheels, along the extension of second guide rail 161
Directional spreding in the end of the frame body 11, in order to keep the extendable platform can smooth sliding, can also be described second
Guide rail 161 installs a universal wheel 163 close to the one end at 11 middle part of the frame body, and makes the universal wheel 163 and the frame body
11 inner bottom surfaces contact.
Further, the lifting unit 10 can be chain block, in order to preferably keep the frame body lifting when
Stablize, the lifting unit can be two, be oppositely arranged between the interconnecting piece 14 and the frame body 11, due to the liter
Drop unit 10 is chain block, so one end of two chain blocks is hooked on the rectangular frame, other end connection
Hawser forms four hook points, hooks four vertex on the frame body 11 respectively.
Embodiment 2
A kind of application method of operation platform is present embodiments provided, the operation platform is that the construction in embodiment 1 is flat
Platform 1 comprising frame body 11, first movement unit, the second mobile unit and connection 11 and second mobile unit of frame body
Lifting unit 10.
Based on the above, the application method includes the following steps：
S1：According to construction needs, second mobile unit is connected on the first movement unit, described first moves
Moving cell uses setting up girder 3, therefore second mobile unit can be connected to the advance of the longeron 31 of the setting up girder 3
On end, supporting point is provided for the frame body 11 by the setting up girder 3, so that the frame body 11 is realized vacantly.
S2：According to construction needs, the vertical distance of the frame body 11 and construction location is adjusted by the lifting unit 10.
S3：According to construction needs, the horizontal distance of the frame body 11 and construction location is adjusted by the second mobile unit.
By step S2 and S3 operate, enable the relatively described construction location of the frame body 11 have best vertical height and
Horizontal distance facilitates constructing operation.
S4：After carrying out constructing operation to the bridge 2, the setting up girder 3 is followed to move forward or back；It is applied so as to described
Work platform 1 can continue to construct to the latter or previous construction location.
S5：According to construction needs, if cantilever bridge continues cantilever bridge subsection, repeat the above steps S2, S3 and S4,
Tensioning construction operation is carried out to the steel strand wires in new assembled bridge subsection to realize, if no longer cantilever bridge section
Section, then remove the operation platform 1 from the setting up girder 3, in case carrying out the constructing operation of other bridges.
Although operation platform 1 described in the present embodiment is for steel strand wires in the bridge subsection using erection by protrusion construction
The constructing operation of prestressed stretch-draw, however it should be readily apparent to one skilled in the art that the construction scene of bridge or bridge subsection simultaneously
More than prestressed stretch-draw, also other kinds of construction scene, such as seam between bridge subsection is carried out to steel strand wires to apply
Work, bridge maintenance construction etc. be related to the constructing operation of bridge and can use the operation platform.It simultaneously can also basis
The embodiment provided in above-described embodiment 1 and embodiment 2 is combined, is applied to and applies accordingly by construction demand and feature
In the scape of workshop.
In conclusion the operation platform operation of the present invention is flexible, site requirements is low, not only changing existing operation platform needs
The problem of frequently dismantling and replace, but also carry out construction behaviour on the bridge that can be applied to high-flying highway, railway, river etc.
Make, solves technical problem proposed by the present invention.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (15)
1. a kind of operation platform, for carrying out constructing operation to bridge, which is characterized in that including：
Frame body, to form construction channel；And
Position regulator, to realize that the frame body moves on the bridge, and the relatively described bridge rises or falls.
2. operation platform as described in claim 1, which is characterized in that the position regulator includes：
Mobile unit, to realize that the frame body moves on the bridge；And
Lifting unit to connect the frame body and mobile unit, and realizes that the relatively described bridge of the frame body rises or falls.
3. operation platform as claimed in claim 2, which is characterized in that the mobile unit include first movement unit and with institute
The second mobile unit of first movement unit connection is stated, wherein the first movement unit is realizing the frame body in the bridge
It is moved on beam, second mobile unit is realizing that the frame body and lifting unit are moved relative to the first movement unit.
4. operation platform as claimed in claim 3, which is characterized in that the first movement unit is the frame for building a bridge
Beam equipment.
5. operation platform as claimed in claim 3, which is characterized in that second mobile unit includes running part and connection
Portion, the running part include the guide rail being arranged on the first movement unit, and be in contact with the guide rail with it is matched
Idler wheel；
The interconnecting piece connects the lifting unit to support the idler wheel.
6. operation platform as claimed in claim 5, which is characterized in that the idler wheel is driven using motor.
7. operation platform as described in claim 1, which is characterized in that shown operation platform further includes adjusting to fill with the position
The device for limiting for setting connection forms the liftway of the frame body along the lifting direction of the frame body.
8. operation platform as claimed in claim 7, which is characterized in that the device for limiting is equipped with several logical along the lifting
The limit hole that the extending direction in road is spaced apart；
The frame body, which is equipped with, can pass through axis pin and the fixed location hole of the limit hole.
9. operation platform as described in claim 1, which is characterized in that extendable platform is equipped in the construction channel, it is described to prolong
It is stretched flat between platform and the frame body and is equipped with platform mobile unit, to realize that the extendable platform is reciprocal in the construction channel
It is mobile.
10. operation platform as claimed in claim 9, which is characterized in that there are two the extendable platforms, is oppositely arranged on described
In construction channel.
11. operation platform as claimed in claim 9, which is characterized in that the platform mobile unit includes guide rail, and with institute
Guide rail contact and matched idler wheel are stated, the guide rail is arranged on the extendable platform, and the idler wheel is arranged on the frame body.
12. operation platform as described in claim 1, which is characterized in that the operation platform using erection by protrusion for being applied
The constructing operation of steel strand prestress tensioning in the bridge subsection of work.
13. operation platform as claimed in claim 2, which is characterized in that the lifting unit is chain block.
14. a kind of application process of operation platform, which is characterized in that the operation platform includes a frame body and position adjustment dress
It sets, the frame body is to form construction channel, and the position regulator is realizing that the frame body moves on the bridge
And the relatively described bridge rises or falls, the application method includes the following steps：
S1：The operation platform is placed on bridge；
S2：The vertical distance of the frame body and construction location is adjusted by the position regulator；
S3：The horizontal distance of the frame body and construction location is adjusted by the position regulator；
S4：After constructing operation, position of the operation platform on the bridge is adjusted by the position regulator.
15. application method as claimed in claim 14, which is characterized in that when construction need to be continued, according to the operation platform
The vertical distance and horizontal distance of opposite construction location, repeat the above steps S2 and/or S3 and/or S4；
When needing not continue to construction, the operation platform is removed from the bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404101.3A CN108560430A (en) | 2018-04-28 | 2018-04-28 | Operation platform and its application process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810404101.3A CN108560430A (en) | 2018-04-28 | 2018-04-28 | Operation platform and its application process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108560430A true CN108560430A (en) | 2018-09-21 |
Family
ID=63537225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810404101.3A Pending CN108560430A (en) | 2018-04-28 | 2018-04-28 | Operation platform and its application process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108560430A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144827A (en) * | 2019-06-03 | 2019-08-20 | 中建钢构有限公司 | Across highway bridge construction technology |
| CN110552262A (en) * | 2019-09-24 | 2019-12-10 | 中国铁建重工集团股份有限公司 | track laying machine |
| CN115224634A (en) * | 2022-09-07 | 2022-10-21 | 中建四局安装工程有限公司 | Overhead device and method for cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102367651A (en) * | 2011-09-09 | 2012-03-07 | 腾达建设集团股份有限公司 | U-shaped concrete beam bridge girder erection machine |
| KR101259031B1 (en) * | 2012-10-16 | 2013-04-29 | 컨텍이앤씨 주식회사 | Form traveller having transversal frame, and launching method for the same |
| CN204690597U (en) * | 2015-06-02 | 2015-10-07 | 中铁二十三局集团有限公司 | For the removable Hanging Basket of erection of track beam |
| CN106368124A (en) * | 2016-07-21 | 2017-02-01 | 中交公局厦门工程有限公司 | Platform device for assisting hanging construction operation at bottom of bridge floor system |
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2018
- 2018-04-28 CN CN201810404101.3A patent/CN108560430A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367651A (en) * | 2011-09-09 | 2012-03-07 | 腾达建设集团股份有限公司 | U-shaped concrete beam bridge girder erection machine |
| KR101259031B1 (en) * | 2012-10-16 | 2013-04-29 | 컨텍이앤씨 주식회사 | Form traveller having transversal frame, and launching method for the same |
| CN204690597U (en) * | 2015-06-02 | 2015-10-07 | 中铁二十三局集团有限公司 | For the removable Hanging Basket of erection of track beam |
| CN106368124A (en) * | 2016-07-21 | 2017-02-01 | 中交公局厦门工程有限公司 | Platform device for assisting hanging construction operation at bottom of bridge floor system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144827A (en) * | 2019-06-03 | 2019-08-20 | 中建钢构有限公司 | Across highway bridge construction technology |
| CN110552262A (en) * | 2019-09-24 | 2019-12-10 | 中国铁建重工集团股份有限公司 | track laying machine |
| CN110552262B (en) * | 2019-09-24 | 2021-08-06 | 中国铁建重工集团股份有限公司 | Track laying machine |
| CN115224634A (en) * | 2022-09-07 | 2022-10-21 | 中建四局安装工程有限公司 | Overhead device and method for cable |
| CN115224634B (en) * | 2022-09-07 | 2023-09-19 | 中建四局安装工程有限公司 | Overhead device and method for cable |
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Application publication date: 20180921 |