CN202509414U - Construction device for jacking bridge broken column - Google Patents
Construction device for jacking bridge broken column Download PDFInfo
- Publication number
- CN202509414U CN202509414U CN2012201370267U CN201220137026U CN202509414U CN 202509414 U CN202509414 U CN 202509414U CN 2012201370267 U CN2012201370267 U CN 2012201370267U CN 201220137026 U CN201220137026 U CN 201220137026U CN 202509414 U CN202509414 U CN 202509414U
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- hydraulic
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- bridge
- hydraulic oil
- jacking
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Abstract
The utility model relates to the technical field of structures jacking, in particular to a construction device for jacking a bridge broken column. The construction device relates to a cut bridge pier and a massive column beam system, wherein the massive column beam system comprises a massive column beam for clamping the bridge pier. The construction device comprises a jacking hydraulic cylinder which is inversely arranged at a part, which is close to the bridge pier, of the bottom of the column beam system. The construction device is characterized by further comprising a hydraulic pump station, a plurality of following hydraulic oil cylinders and balance oil cylinders of which the quantity is equal to that of the following hydraulic oil cylinders; the following hydraulic oil cylinders are connected with the hydraulic pump station; a following hydraulic cylinder base is fixedly arranged on an upper cut surface of the bridge pier; the balance oil cylinders are fixedly arranged at jacking ends of the following hydraulic oil cylinders in a one-to-one correspondence manner; and the balance oil cylinders are communicated through an oil pipe. The construction device has the advantages that an upper structure can be still effectively supported and jacked when the oil pressure of the jacking hydraulic cylinder suddenly disappears or the oil pipe cracks, and further the upper structure is prevented from falling off.
Description
Technical field
The utility model relates to structure jacking technical field, is specifically related to a kind of disconnected capital of bridge that is used for and rises process and rise construction equipment for the disconnected capital of bridge that superstructure supports.
Background technology
In at present present river course, railway, the highway rebuilding, the headroom of bridge and existing linear and the newly-built bridge of bridge be linear, and problem such as to be connected be the difficult point problem in the transformation.Domestic many cross a rivers road super expressway bridge because under-clearance is not enough, is faced with the problem of transformation at present.For the transformation of old bridge, traditional method is old bridge to be removed rebuild, and this is with the labor financial resource and material resource, and construction period is long bigger to social influence.The bridge jacking technology has economical rationality as a kind of novel bridge renovation technique, short construction period, and the advantage less to social environment influence has the conventional method incomparable advantage.In order to reduce as far as possible to social influence, shorten construction period, even do not suspend traffic, need carry out jack-up construction to bridge.
At present, job practices commonly used in the bridge jacking technology is the hydraulic jack jacking, and especially in large-tonnage bridge jacking engineering, hydraulic lifting is a unique selection.The hydraulic jack system can provide powerful top lift, and whole hydraulic jack system is connected by oil pipe, so when jacking, can play a role jointly.Especially synchronization of jacking up technology of hydraulic jack integral jacking system is mature on the whole at present, adopts PLC Hydraulic Synchronizing control jacking successfully utilization in multinomial order engineering.Hydraulic lifting system itself is also as the support system in the bridge jacking engineering in engineering in the past.But there is very big risk in the hydraulic lifting system as support system: if occur letting out in the hydraulic pressure, accident such as oil pipe explosion, the safety of bridge jacking is on the hazard, even immeasurable security incident takes place during jacking.
Summary of the invention
The purpose of the utility model is the weak point according to above-mentioned prior art; Provide the disconnected capital of a kind of bridge to rise construction equipment; The disconnected capital of this bridge rises construction equipment and sets up the follow-up hydraulic oil cylinder on the jack-up hydraulic ram side, makes and when the oil pressure of oil cylinder suddenly disappears, still can effectively support top jacking bridge, avoid top bridge landing through the follow-up hydraulic oil cylinder.。
The utility model purpose realizes being accomplished by following technical scheme:
The disconnected capital of a kind of bridge rises construction equipment; Relate to the bridge pier and the thick pillar girder system that are cut; Said thick pillar girder system comprises the thick pillar beam of clamping bridge pier; Said construction equipment comprises jack-up hydraulic ram, and said jack-up hydraulic ram is inverted and is installed on nearly said bridge pier place, said post girder system bottom, it is characterized in that: said construction equipment also comprise hydraulic power unit, some follow-up hydraulic oil cylinders and with the corresponding balancing cylinder of said follow-up hydraulic oil cylinder quantity; Said follow-up hydraulic oil cylinder links to each other with said hydraulic power unit; Said follow-up hydraulic oil cylinder pedestal is fixed on the last cut surface of said bridge pier, and said balancing cylinder is fixedly installed in the jacking end place of said follow-up hydraulic oil cylinder one to one, is communicated with through oil pipe between said balancing cylinder.
Said follow-up hydraulic oil cylinder adopts mechanical whorl to carry.
The inner seal of said follow-up hydraulic oil cylinder also is equipped with into and out of oil pipe, saidly is connected to said hydraulic power unit into and out of oil pipe.
Specifically refer to through the oil pipe connection between said balancing cylinder: near the balancing cylinder each said bridge pier is through oil pipe, distributor series connection.
The advantage of the utility model is following:
1, the follow-up hydraulic oil cylinder of the utility model adopts machinery to carry, and has avoided accidents such as hydraulic leak or sealing leakage of oil, has good safety reliability with respect to the hydraulic fluid compressing cylinder.
2, the follow-up hydraulic oil cylinder of the utility model adopts hydraulic-driven, when following jointly on many servo-actuateds tops, has guaranteed that many servo-actuateds tops make the synchronism of time spent, verification experimental verification this point.The hydraulically powered top of following need not servomotor, thus less with respect to the Mechanical Driven scale of construction, be easy to install and use.
3, the utility model has adopted the short balancing cylinder of stroke, makes the servo-actuated support system have good holistic resistant behavior, and stressed basically identical is pushed up in each servo-actuated, has reached the effect of practical applications through verification experimental verification.
Through the contrast verification of testing for several times; This utility model has very high safety reliability; Have good synchronism, operability and holistic resistant behavior, can suddenly disappear or still can effectively support the top bridge during oil pipe explosion as a kind of oil pressure at oil cylinder rises bridge; Avoid the follow-up supporting mechanism of top bridge landing, thereby reliable assurance is provided for the bridge jacking engineering safety.
Description of drawings
Accompanying drawing 1 rises the whole user mode sketch map of construction equipment for the disconnected capital of the utility model;
Accompanying drawing 2 is the utility model hydraulic jack layout sketch map;
The specific embodiment
Through embodiment the utility model characteristic and other correlated characteristic are done further explain below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
Shown in Fig. 1-3, label 1-10 representes respectively: superstructure 1, bridge pier 2, jack-up hydraulic ram 3, cushion block 4, balancing cylinder 5, follow-up hydraulic oil cylinder 6, thick pillar beam 7, contact beam 8, last cut surface 9, following cut surface 10.
Shown in Fig. 1-3, the jack-up construction device is mainly used in the bridge jacking construction in the present embodiment, is specifically related to disconnected capital and rises job practices, and the building unit that wherein relates to comprises bridge superstructure 1, bridge pier 2, thick pillar beam 7 and contact beam 8.Wherein thick pillar beam 7 is exactly to be attached to bridge pier 2 girder system all around, is a kind of theory that underpins.During jacking, jack-up hydraulic ram 43 passes to thick pillar beam 7 to power, and thick pillar beam 7 passes to bridge pier 2 to power again, and bridge pier 2 passes between superstructure 1. thick pillar beams 7 and the bridge pier 2 the friction Transfer of Shear through new and old concrete.When construction, for each bridge pier 2 thick pillar beam 7 is set all, and, makes pier stud become as a whole connecting into a thick pillar girder system with contact beam 8 between the thick pillar beam 7.
In the jack-up construction of routine, at first raise superstructure 1 through jack-up hydraulic ram 3 synchronizations of jacking up, and the corresponding cushion block 4 of placing; Jack-up hydraulic ram 3 is received cylinder afterwards, and superstructure 1 whole loads are transformed on the cushion block 4 by jack-up hydraulic ram 3, afterwards at jack-up hydraulic ram 3 held cushion blocks 4; After jack-up hydraulic ram 3 lower cushion blocks 4 place; Jack-up hydraulic ram 3 is stretched cylinder and is continued next jacking stroke, circulates, replaces jacking for bridge superstructure 1, arrives design height until jacking.Remove jack-up hydraulic ram 3 at last and handle the connect height of realization for bridge pier for the building lip block.
Different with existing jack-up construction device, the jack-up construction device also comprises some balancing cylinders 5 and some follow-up hydraulic oil cylinders 6 in the present embodiment, and wherein follow-up hydraulic oil cylinder 6 is identical with quantity with balancing cylinder 5.Said follow-up hydraulic oil cylinder 6 links to each other with the hydraulic power unit (not shown); Said follow-up hydraulic oil cylinder 6 pedestals are fixed at last cut surface 9 bottoms of said bridge pier 2; Said balancing cylinder 5 is fixedly installed in the jacking end place of said follow-up hydraulic oil cylinder 6 one to one, and 5 of said balancing cylinders pass through oil pipe and are communicated with.The purpose of setting up follow-up hydraulic oil cylinder 6 and balancing cylinder 5 is to avoid when the oil pressure of jack-up hydraulic ram 3 suddenly disappears superstructure 1 landing.Follow-up hydraulic oil cylinder 6 orders about follow-up hydraulic oil cylinder 6 by the hydraulic-driven pumping plant and carries out work; Its inner mechanical whorl that adopts carries; Bear the load on top through the elastic deformation of mechanical whorl; Follow-up hydraulic oil cylinder 6 is passive stressed, promptly can bear bigger load, but and the active force that provides much smaller than bearing load.In the present embodiment, but follow-up hydraulic oil cylinder 6 bearing loads are 4000KN, and its active top lift only has 1.5KN approximately.The inner seal of follow-up hydraulic oil cylinder 6 is installed into flowline, and oil pipe is connected to hydraulic power unit or is called on the control pumping plant.During jacking, open this pumping plant, the oil in the pumping plant gets in the follow-up hydraulic oil cylinder 6 through oil pipe, and through the screw device of oil pressure actuated follow-up hydraulic oil cylinder 6 inside, follow-up hydraulic oil cylinder 6 follows up automatically; When receiving cylinder, oil return, the oil in the follow-up hydraulic oil cylinder 6 gets into pumping plant.The inside rotary power of follow-up hydraulic oil cylinder 6 is provided by hydraulic power unit, through regulating rising and the decline that direction of rotation gets final product implement device.
Jack-up hydraulic ram 3 purpose that 6 reversals of the natural order of things are provided with the follow-up hydraulic oil cylinder is for ease of jacking operation (cushion block 4 is had bad luck conveniently); All hydraulic oil cylinder (jack-up hydraulic ram 3 and follow-up hydraulic oil cylinder 6) all is inverted by downward direction and is installed, and jack-up hydraulic ram 3 rises with the rising of superstructure with follow-up hydraulic oil cylinder 6.Jack-up hydraulic ram 3 and thick pillar beam are 7 fixed, the last cut surface 9 of follow-up hydraulic oil cylinder 6 and bridge pier 2 is fixed, and the jacking end of jack-up hydraulic ram 3 and follow-up hydraulic oil cylinder 6 separates with counter-force basic (pedestal and following cut surface 10).Jack-up hydraulic ram 3 should guarantee the axis normal of hydraulic jack when installing with follow-up hydraulic oil cylinder 6, in order to avoid produce horizontal component because of the hydraulic jack installation is tilted in the jacking process.The upper and lower side of jack-up hydraulic ram 3 and follow-up hydraulic oil cylinder 6 should be placed steel plate.
Balancing cylinder 5 is identical with the quantity of follow-up hydraulic oil cylinder 6; Every follow-up hydraulic oil cylinder 6 below are provided with the balancing cylinder 5 of stroke very little (about 2mm); Balancing cylinder 5 specifications are identical, have oil pipe to be communicated with between each balancing cylinder 5, and said balancing cylinder 5 pressure equate during work.Through increasing balancing cylinder 5 devices, the offset deviation that can correct rigidity between the servo-actuated support automatically makes the stress equalization of each strong point.Jacking load in top passes to balancing cylinder 5 through follow-up hydraulic oil cylinder 6, and balancing cylinder 5 on the same group guarantees that through oil pipe UNICOM follow-up hydraulic oil cylinder 6 on the same group is stressed even; Said balancing cylinder 5 strokes are very little, have oil pipe to be communicated with between each balancing cylinder 5.
Claims (4)
1. the disconnected capital of bridge rises construction equipment; Relate to the bridge pier and the thick pillar girder system that are cut; Said thick pillar girder system comprises the thick pillar beam of clamping bridge pier; Said construction equipment comprises jack-up hydraulic ram, and said jack-up hydraulic ram is inverted and is installed on nearly said bridge pier place, said post girder system bottom, it is characterized in that: said construction equipment also comprise hydraulic power unit, some follow-up hydraulic oil cylinders and with the corresponding balancing cylinder of said follow-up hydraulic oil cylinder quantity; Said follow-up hydraulic oil cylinder links to each other with said hydraulic power unit; Said follow-up hydraulic oil cylinder pedestal is fixed on the last cut surface of said bridge pier, and said balancing cylinder is fixedly installed in the jacking end place of said follow-up hydraulic oil cylinder one to one, is communicated with through oil pipe between said balancing cylinder.
2. the disconnected capital of a kind of bridge according to claim 1 rises construction equipment, it is characterized in that: said follow-up hydraulic oil cylinder adopts mechanical whorl to carry.
3. the disconnected capital of a kind of bridge according to claim 1 rises construction equipment, and it is characterized in that: the inner seal of said follow-up hydraulic oil cylinder also is equipped with into and out of oil pipe, saidly is connected to said hydraulic power unit into and out of oil pipe.
4. the disconnected capital of a kind of bridge according to claim 1 rises construction equipment, it is characterized in that: specifically refer to through the oil pipe connection between said balancing cylinder: near the balancing cylinder each said bridge pier is through oil pipe, distributor series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201370267U CN202509414U (en) | 2012-04-01 | 2012-04-01 | Construction device for jacking bridge broken column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201370267U CN202509414U (en) | 2012-04-01 | 2012-04-01 | Construction device for jacking bridge broken column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202509414U true CN202509414U (en) | 2012-10-31 |
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ID=47061911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201370267U Expired - Lifetime CN202509414U (en) | 2012-04-01 | 2012-04-01 | Construction device for jacking bridge broken column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202509414U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106149573A (en) * | 2016-07-19 | 2016-11-23 | 代营伟 | A kind of bridge strengthening device |
| CN108570933A (en) * | 2017-03-10 | 2018-09-25 | 上海先为土木工程有限公司 | A kind of low-pylon cable-stayed bridge jacking method |
-
2012
- 2012-04-01 CN CN2012201370267U patent/CN202509414U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106149573A (en) * | 2016-07-19 | 2016-11-23 | 代营伟 | A kind of bridge strengthening device |
| CN106149573B (en) * | 2016-07-19 | 2017-12-15 | 张工 | A kind of bridge strengthening device |
| CN108570933A (en) * | 2017-03-10 | 2018-09-25 | 上海先为土木工程有限公司 | A kind of low-pylon cable-stayed bridge jacking method |
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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: 20121031 |
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| CX01 | Expiry of patent term |