CN202672044U - Device for bridge construction pushing power - Google Patents
Device for bridge construction pushing power Download PDFInfo
- Publication number
- CN202672044U CN202672044U CN 201220312186 CN201220312186U CN202672044U CN 202672044 U CN202672044 U CN 202672044U CN 201220312186 CN201220312186 CN 201220312186 CN 201220312186 U CN201220312186 U CN 201220312186U CN 202672044 U CN202672044 U CN 202672044U
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- CN
- China
- Prior art keywords
- pushing
- pushing tow
- girder
- pushing mechanism
- hydraulic jack
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a device for bridge construction pushing power. The device for the bridge construction pushing power comprises at least one set of pushing mechanism arranged on a lower chord pipe cross beam on one side of a main beam; the pushing mechanism comprises two hydraulic jacks, and the two hydraulic jacks are sequentially connected; and when each set of pushing mechanism is used for pushing evaluation, pushing of the two hydraulic jacks and oil return are continuously alternated. Through the device, the pushing speed of the main beam is improved, and the safety of construction is also improved.
Description
Technical field
The utility model relates to field of bridge construction, particularly relates to a kind of bridge construction pushing tow power set.
Background technology
In the work progress of bridge, after each bridge pier moulding is erect, need to lay girder at bridge pier, think that the pouring of follow-up whole bridge floor is got ready, in the process of deployment of girder, need to use jack pushing tow girder and the laying that realizes each girder.In the girder of prior art is laid, usually use the single hydraulic jack to be arranged at a side of working platform, thereby at a side pushing tow girder of girder, to finish the laying of back timber.As everyone knows, after the fluid pressure type jack is finished a pushing tow operation, need just can carry out next time pushing tow operation after the oil return, so this pushing tow mode is utilized single jack pushing tow girder, and not only pushing tow process speed is slow, and need on working platform, change continuously jack and carry out pushing tow, could accelerate pushing tow speed, on working platform, not stop to change the risk that jack has increased construction.Therefore be necessary to provide a kind of device of improved bridge construction pushing tow power to overcome defects.
The utility model content
The purpose of this utility model is to provide a kind of device of bridge construction pushing tow power, and device that should bridge construction pushing tow power has improved girder pushing tow speed, and has improved the safety of construction.
To achieve these goals, the utility model provides a kind of device of bridge construction pushing tow power, the device of this bridge construction pushing tow power comprises that at least one cover is installed on the top-pushing mechanism on the lower chord tube crossbeam of girder one side, described top-pushing mechanism comprises two hydraulic jack, and two described hydraulic jack are linked in sequence, during the described top-pushing mechanism pushing tow evaluation and test of every cover, pushing tow and the oil return of two described hydraulic jack hocket continuously.
Preferably, also be provided with the controller of two described hydraulic jack jacking force of control on the described top-pushing mechanism, described controller is connected with two described hydraulic jack respectively.
Preferably, the described thrustor of every cover also comprises three steel strand, and three described steel strand pass respectively two described hydraulic jack and also are anchored in respectively on first three bridge pier.
Preferably, the device of described bridge construction pushing tow power also comprises reaction frame, and described reaction frame is installed between the lower chord tube crossbeam of described top-pushing mechanism and girder, acts on the lower chord tube crossbeam of girder with the jacking force with the hydraulic jack of described top-pushing mechanism.
Preferably, described top-pushing mechanism is set to two covers, and is installed on respectively on the lower chord tube crossbeam of the relative both sides of girder.
Preferably, also be provided with electromagnetic valve on the described top-pushing mechanism of two covers, the described top-pushing mechanism of described solenoid control two covers is the pushing tow girder simultaneously.
The beneficial effects of the utility model:The device of bridge construction pushing tow power of the present utility model is because the described top-pushing mechanism of every cover comprises two hydraulic jack that are linked in sequence, and pushing tow and the oil return of two hydraulic jack of the described top-pushing mechanism of every cover hocket continuously, thereby in pushing tow girder process, two described hydraulic jack can alternately be carried out the pushing tow operation continuously, namely when a described hydraulic jack is in the oil return state, another described jack is in the pushing tow state, so that the pushing tow operation of girder is carried out constantly always, accelerated the pushing tow process of girder; Simultaneously, a described hydraulic jack is in the oil return state and also need change other hydraulic jack, has avoided changing at working platform the risk of hydraulic jack, has improved the safety of construction.
Description of drawings
Fig. 1 is the structural representation that the device of the utility model bridge construction pushing tow power cooperates with girder and working platform.
Fig. 2 is the sectional drawing along A-A line shown in Figure 1.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.And in order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Please in conjunction with reference to figure 1 and Fig. 2, the device of the utility model bridge construction pushing tow power is applicable on the working platform of mounted bridge construction.And the device of described bridge construction pushing tow power comprises at least one top-pushing mechanism 100, described top-pushing mechanism 100 comprises two hydraulic jack that are linked in sequence 110, described top-pushing mechanism 100 is installed on the lower chord tube crossbeam 201 of girder one side for the treatment of pushing tow, and be adjacent to lower chord tube 202 places of girder, move with the pushing tow girder; Described top-pushing mechanism 100 is in the pushing tow process, the pushing tow operation of two described hydraulic jack 110 hockets continuously with the oil return operation, thereby so that described top-pushing mechanism 100 can carry out pushing tow to girder continuously, can not interrupt the pushing tow operation because of the oil return of a described hydraulic jack 110, nor need to change hydraulic jack at working platform, accelerated the pushing tow process of girder, also reduced simultaneously to change the construction risk that hydraulic jack is brought, the safety that has improved bridge construction at working platform.
For the jacking force that makes described top-pushing mechanism 100 is suitable for concrete main beam structure, on described top-pushing mechanism 100, also be provided with the controller (not shown), described controller is connected with two described hydraulic jack 110 of described top-pushing mechanism 100 respectively, thereby the jacking force of two described hydraulic jack 110 of described controller control, so that described top-pushing mechanism 100 output jacking force sizes are fit to concrete main beam structure, thereby can may not damage girder because jacking force is excessive, also not can because of jacking force is too small can not mobile girder.In addition; in order further to protect girder in the pushing tow process, not to be damaged; in preferred embodiment of the present utility model; on described top-pushing mechanism 100, reaction frame 120 is installed also; that is to say that described reaction frame 120 is between the lower chord tube crossbeam 201 and described top-pushing mechanism 100 of girder; thereby so that directly do not contact between described top-pushing mechanism 100 and the girder, avoid in the pushing tow process, damaging girder because of unexpected, improved the quality of bridge construction.
In preferred embodiment of the present utility model, described top-pushing mechanism 100 also comprises three steel strand 130,, three described steel strand 130 pass respectively two hydraulic jack 110 of described top-pushing mechanism 100, and the end of three described steel strand 130 is anchored at respectively on first three bridge pier 203; Thereby in the pushing tow process of top-pushing mechanism 100, but so that three bridge pier 203 uniform stresseds of three steel strand 130 and anchoring thereof, avoided described steel strand 130 are anchored on the bridge pier 203 and drawn the bridge pier 203 of inclined to one side institute anchoring, improved the quality of construction.
In preferred embodiment of the present utility model, described top-pushing mechanism 100 is set to two covers, and the described top-pushing mechanism 100 of two covers is installed in respectively on the lower chord tube crossbeam 201 of girder both sides, and significantly, the device that other cooperates with described top-pushing mechanism 100 described above is relative set also; Top-pushing mechanism 100 all is set and girder is carried out pushing tow in the both sides of girder, further accelerated the pushing tow speed of girder; On the described top-pushing mechanism 100 of two covers, also be provided with the electromagnetic valve (not shown) in addition, the described top-pushing mechanism 100 of described solenoid control two covers moves the pushing tow girder simultaneously, while has also avoided causing in the pushing tow progress difference of girder both sides the possibility of girder run-off the straight, has guaranteed construction quality.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (6)
1. the device of a bridge construction pushing tow power, it is characterized in that, comprise that at least one cover is installed on the top-pushing mechanism on the lower chord tube crossbeam of girder one side, described top-pushing mechanism comprises two hydraulic jack, and two described hydraulic jack are linked in sequence, during the described top-pushing mechanism pushing tow evaluation and test of every cover, pushing tow and the oil return of two described hydraulic jack hocket continuously.
2. the device of bridge construction pushing tow power according to claim 1 is characterized in that, also is provided with the controller of two described hydraulic jack jacking force of control on the described top-pushing mechanism, and described controller is connected with two described hydraulic jack respectively.
3. the device of bridge construction pushing tow power according to claim 2 is characterized in that, the described thrustor of every cover also comprises three steel strand, and three described steel strand pass respectively two described hydraulic jack and also are anchored in respectively on first three bridge pier.
4. the device of bridge construction pushing tow power according to claim 3, it is characterized in that, also comprise reaction frame, described reaction frame is installed between the lower chord tube crossbeam of described top-pushing mechanism and girder, acts on the lower chord tube crossbeam of girder with the jacking force with the hydraulic jack of described top-pushing mechanism.
5. the device of bridge construction pushing tow power according to claim 4 is characterized in that, described top-pushing mechanism is set to two covers, and is installed on respectively on the lower chord tube crossbeam of the relative both sides of girder.
6. the device of bridge construction pushing tow power according to claim 5 is characterized in that, also is provided with electromagnetic valve on the described top-pushing mechanism of two covers, and the described top-pushing mechanism of described solenoid control two covers is the pushing tow girder simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312186 CN202672044U (en) | 2012-06-30 | 2012-06-30 | Device for bridge construction pushing power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220312186 CN202672044U (en) | 2012-06-30 | 2012-06-30 | Device for bridge construction pushing power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202672044U true CN202672044U (en) | 2013-01-16 |
Family
ID=47492954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220312186 Expired - Lifetime CN202672044U (en) | 2012-06-30 | 2012-06-30 | Device for bridge construction pushing power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202672044U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711079A (en) * | 2013-12-19 | 2014-04-09 | 柳州泰姆预应力机械有限公司 | Track rolling and pushing hydraulic machine |
| CN103911953A (en) * | 2014-04-14 | 2014-07-09 | 上海市机械施工集团有限公司 | Combined pushing device for mounting of overhead highways and bridges and unintermittent pushing method of combined pushing device |
| CN104032679A (en) * | 2014-06-12 | 2014-09-10 | 同济大学 | Tail pushing device for bridge body |
-
2012
- 2012-06-30 CN CN 201220312186 patent/CN202672044U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711079A (en) * | 2013-12-19 | 2014-04-09 | 柳州泰姆预应力机械有限公司 | Track rolling and pushing hydraulic machine |
| CN103711079B (en) * | 2013-12-19 | 2016-06-08 | 柳州泰姆预应力机械有限公司 | Track rolling and pushing hydraulic press |
| CN103911953A (en) * | 2014-04-14 | 2014-07-09 | 上海市机械施工集团有限公司 | Combined pushing device for mounting of overhead highways and bridges and unintermittent pushing method of combined pushing device |
| CN103911953B (en) * | 2014-04-14 | 2015-10-28 | 上海市机械施工集团有限公司 | The combination thrustor installed for overhead, bridge and not intermittently pushing method |
| CN104032679A (en) * | 2014-06-12 | 2014-09-10 | 同济大学 | Tail pushing device for bridge body |
| CN104032679B (en) * | 2014-06-12 | 2015-10-28 | 同济大学 | A kind of pontic afterbody incremental launching device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |
|
| CX01 | Expiry of patent term |