CN109516386A - A kind of vibration reduction and cushioning method and system for marine steel beam lifting - Google Patents
A kind of vibration reduction and cushioning method and system for marine steel beam lifting Download PDFInfo
- Publication number
- CN109516386A CN109516386A CN201811354238.9A CN201811354238A CN109516386A CN 109516386 A CN109516386 A CN 109516386A CN 201811354238 A CN201811354238 A CN 201811354238A CN 109516386 A CN109516386 A CN 109516386A
- Authority
- CN
- China
- Prior art keywords
- vibration
- steel beam
- beam lifting
- girder steel
- stormy waves
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/52—Floating cranes
- B66C23/53—Floating cranes including counterweight or means to compensate for list, trim, or skew of the vessel or platform
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
- F16F15/0232—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means with at least one gas spring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/046—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means using combinations of springs of different kinds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
Abstract
The invention discloses a kind of vibration reduction and cushioning method and system for marine steel beam lifting, it is related to bridge spanning the sea technical field of construction, including automatic recognition system, it is set on bridge pier, including stormy waves detection components and vibration-testing component, stormy waves detection components include anemobiagraph and wave instrument, and vibration-testing component includes Attitude instrument and inclinator；Vibration insulating system is set to bridge pier top surface or girder steel bottom surface.Vibration reduction and cushioning method for marine steel beam lifting of the invention monitors system by setting stormy waves, the vibration reduction and cushioning measure of use needed for identification steel beam lifting can be passed through, real-time stormy waves monitoring and crane barge-girder steel system vibration test, live stormy waves condition and crane barge-girder steel system relationship are established, so that the judgement for whether needing to carry out the specific buffer shock-absorbing measure of buffer shock-absorbing and required use to steel beam lifting realized.
Description
Technical field
The present invention relates to bridge spanning the sea technical field of construction, and in particular to a kind of vibration reduction and cushioning for marine steel beam lifting
Method and system.
Background technique
As sea is stretched in Bridges in Our Country construction by land, the construction of bridge spanning the sea has become the weight of the following bridge construction
Point.Bridge spanning the sea girder steel generally uses large-scale floating crane to carry out whole hole lifting, due to by complicated wind near construction sea area, unrestrained environment
It influences, the construction difficulty of bridge spanning the sea is significantly larger than inland and the inland river bridge of identical across footpath and scale.It is over strait under wind, wave effect
The safety and reliability of bridge steel beam lifting faces biggish risk, when vertically falling beam, it is necessary to control its impact coefficient and exist
Within a certain range, the Hoisting Security of girder steel and associated components just can guarantee；If lateral amplitude of vibration is excessive during steel beam lifting,
Hoisting steel beam and having hung easily collides between girder steel, not only increases the difficulty of steel beam lifting, and there are biggish safety
Risk.Therefore, it is necessary to take effective measures to take corresponding vibration reduction and cushioning measure to marine steel beam lifting.
The vibration absorber used when existing land bridge erection is mainly with absorbing buffer layer or horizontal vibration damping damper etc.
It is main, the former be only capable of successfully managing it is unexpected occur or control it is improper caused by the temporary impact that generates on single direction；The latter is main
Cope with that the direction of vibration such as strong wind are single, amplitude variations are compared with the vibration damping demand under subenvironment.Therefore, existing apparatus be difficult to wind,
The particular surroundings vertical under the biggish bridge spanning the sea construction environment of wave, oscillation crosswise is frequent, direction is changeable, amplitude variations are big generates
Effect.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of subtracting for marine steel beam lifting
It shakes way to play for time and system, it is vertical suitable for bridge spanning the sea construction, oscillation crosswise is frequent, direction is changeable, amplitude variations are big
The vibration damping demand of particular surroundings.
To achieve the above objectives, the technical solution adopted by the present invention is that:
A kind of vibration reduction and cushioning system for marine steel beam lifting, is set on the bridge pier to hoisting steel beam, comprising:
Automatic recognition system is set on bridge pier, including stormy waves detection components and vibration-testing component, the stormy waves inspection
Surveying component includes anemobiagraph and wave instrument, and the vibration-testing component includes Attitude instrument and inclinator；
Vibration insulating system is set on the bridge pier or girder steel.
Based on the above technical solution, the vibration insulating system includes Buffer Unit, and the Buffer Unit includes buffering
Pad, the cushion are set to bridge pier top surface or girder steel bottom surface.
Based on the above technical solution, the Buffer Unit further includes hydro-pneumatic buffer, and the hydro-pneumatic buffer is set
Girder steel both ends are placed in, are fixed using bolt anchor ear.
Based on the above technical solution, the Buffer Unit further includes tuner-type damper, the tuner-type vibration damping
Device includes TMD, TLD, TLCD or TLMD, and makes to be bolted to girder steel span centre position.
The present invention also provides a kind of vibration reduction and cushioning methods for marine steel beam lifting characterized by comprising setting subtracts
Vibration buffer system, identifies critical stormy waves condition using automatic recognition system；Vibration insulating system is respectively set according to critical stormy waves condition
In corresponding lateral bolster and vertical bolster.
Based on the above technical solution, described that corresponding cross is respectively set in vibration insulating system according to critical stormy waves condition
It is specifically included to bolster and vertical bolster:
Determine whether steel beam lifting needs to carry out buffer shock-absorbing by girder steel Vibration Condition；
When needing to carry out buffer shock-absorbing, live stormy waves condition is judged, select Buffer Unit by following principle and install: when
When live stormy waves condition is greater than polyurethane cushion use condition less than hydro-pneumatic buffer joint polyurethane cushion use condition,
Then individually vertically buffered using polyurethane cushion；Combine polyurethane buffering when live stormy waves condition is greater than hydro-pneumatic buffer
When padding use condition, vertically buffered using hydro-pneumatic buffer joint polyurethane cushion；When girder steel lateral amplitude of vibration is greater than steel
Between beam when spacing, weave control is carried out using lateral tuner-type damper.
Based on the above technical solution, independent vertically buffered using polyurethane cushion progress includes following step
It is rapid:
Polyurethane cushion density, size and position needed for determining；
In bridge pier top surface or girder steel bottom surface spraying polyurethane foamed material or assembling polyurethane block.
Based on the above technical solution, described vertically to be buffered using hydro-pneumatic buffer joint polyurethane cushion
The following steps are included:
According to girder steel quality and amplitude, hydro-pneumatic buffer model and quantity are selected；Before girder steel formally lifts, liquid gas is delayed
It rushes device and is evenly arranged in girder steel and bridge pier position of collision, be bolted to girder steel bottom surface.
Based on the above technical solution, the setting vibration reduction and cushioning system, is identified critical using automatic recognition system
Stormy waves condition specifically includes: installing anemobiagraph and wave instrument at girder steel bridge site to be hung, monitors for steel beam lifting process stormy waves；
After girder steel and crane barge are in place, hull posture instrument is installed in crane barge centroid position, and in girder steel centroid position mounted angle instrument；It establishes
Relationship between stormy waves condition and crane barge-steel beam lifting system vibration；Determine whether steel beam lifting needs by girder steel Vibration Condition
Carry out the specific buffer shock-absorbing measure of buffer shock-absorbing and required use.
Based on the above technical solution, the specific buffer shock-absorbing measure includes polyurethane cushion buffering, liquid gas
Buffer combines polyurethane cushion buffering and tuner-type damper damping.
Compared with the prior art, the advantages of the present invention are as follows:
(1) the vibration reduction and cushioning method for marine steel beam lifting of the invention monitors system by setting stormy waves, can pass through
It identifies the vibration reduction and cushioning measure used needed for steel beam lifting, real-time stormy waves monitoring and crane barge-girder steel system vibration test, establishes existing
Stormy waves condition and crane barge-girder steel system relationship, to realize to whether steel beam lifting needs to carry out buffer shock-absorbing and required
The judgement of the specific buffer shock-absorbing measure used.
(2) the vibration reduction and cushioning system structure for marine steel beam lifting of the invention is simple, used polyurethane buffering
Cushion material processing and installation is convenient and cheap, and hydro-pneumatic buffer and lateral tuner-type damper are easy for installation and recyclable make
With carrying out minimum change on existing marine girder steel Lift-on/Lift-off System can be obtained.
(3) hydro-pneumatic buffer used in the vibration reduction and cushioning system for marine steel beam lifting of the invention can utilize gas
Compressibility effect, conversion mechanical energy be pressure energy and thermal energy, for extending the action time of impact load, absorbing and converting
The energy of impact load；It uses compressed gas as reset spring, not only eliminates the tired of steel spring in general buffer unit
Labor phenomenon, and realize without abrasion work, be greatly improved its service life and reduce maintenance, the balanced, buffer capacity with drag
Amount is big, the features such as being easily installed.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the vibration reduction and cushioning system of marine steel beam lifting in the embodiment of the present invention；
Fig. 2 is polyurethane cushion in the embodiment of the present invention in bridge pier top surface arrangement schematic diagram；
Fig. 3 is polyurethane cushion in the embodiment of the present invention in girder steel cushion block sole arrangement schematic diagram；
Fig. 4 is hydro-pneumatic buffer arrangement schematic diagram in the embodiment of the present invention；
Fig. 5 is that hydro-pneumatic buffer combines buffering arrangement schematic diagram with polyurethane cushion in the embodiment of the present invention；
Fig. 6 is single lateral tuner-type damper arrangement schematic diagram in the embodiment of the present invention；
Fig. 7 is multiple lateral tuner-type damper arrangement schematic diagrams in the embodiment of the present invention.
In figure: 1- bridge pier, 2- girder steel, 3- anemobiagraph, 4- wave instrument, 5- Attitude instrument, 6- inclinator, 7- polyurethane are slow
Punching pad, 8- hydro-pneumatic buffer, 9- tuner-type damper.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and embodiments.
Referring to shown in Fig. 1 to Fig. 7, the embodiment of the present invention provides a kind of vibration reduction and cushioning system for marine steel beam lifting,
It is set on the bridge pier 1 to hoisting steel beam 2, comprising:
Automatic recognition system is set on bridge pier 1, including stormy waves detection components and vibration-testing component, stormy waves detection
Component includes anemobiagraph 3 and wave instrument 4, and vibration-testing component includes Attitude instrument 5 and inclinator 6；
Vibration insulating system is set on the bridge pier 1 or girder steel 2, and vibration insulating system includes Buffer Unit, for specifically slow
Rush the realization of function.In specific operation, different types of Buffer Unit can be set according to practical stormy waves environmental condition, or make
With the combination of above-mentioned Buffer Unit.For example, in the embodiment that Fig. 2-Fig. 3 is provided, using being set to bridge pier top surface or girder steel bottom
Face polyurethane cushion 7 is used as Buffer Unit, the main buffer requirement for coping with vertical motion；In the embodiment that Fig. 4 is provided, make
It uses hydro-pneumatic buffer 8 as Buffer Unit, hydro-pneumatic buffer 8 is set to girder steel both ends, fixed using bolt anchor ear；Liquid gas
Buffer 8 is acted on using the compressibility of gas, and conversion mechanical energy is pressure energy and thermal energy, for extending the effect of impact load
Time absorbs and converts the energy of impact load, reaches the buffering effect of better vertical motion；In the embodiment that Fig. 5 is provided
In, Buffer Unit is combined setting by hydro-pneumatic buffer 8 with polyurethane cushion 7 and is constituted；In the embodiment that Fig. 6, Fig. 7 are provided,
Buffer Unit is the tuner-type damper 9 being set on girder steel, and the type of tuner-type damper 9 can be in common tuner-type vibration damping
It is selected in device, including TMD (tuned mass damper), TLD (tuned liquid damper, TLD, tuned sloshing damper), TLCD (tuning liquid column type resistance
Buddhist nun's device) or TLMD (liquid quality dual-tuning vibration reduction device).
In specific setting up procedure, Buffer Unit can be set to bridge pier, steel according to specific buffer requirement and setting feature
The corresponding position of beam, such as in above-mentioned feasible embodiment, polyurethane cushion is set to bridge pier top surface or girder steel bottom surface；Liquid gas
Buffer is set to girder steel both ends；Tuner-type damper then makes to be bolted to girder steel span centre position.
The present invention also provides a kind of vibration reduction and cushioning methods for marine steel beam lifting, in a specific implementation of the invention
In example, this method comprises:
Step 1, setting vibration reduction and cushioning system, it is true by the system using the automatic recognition system in vibration reduction and cushioning system
Determine the corresponding critical stormy waves condition of vibration reduction and cushioning measure needed for steel beam lifting and identifies critical stormy waves condition；Mainly sentence when specific execution
Whether disconnected stormy waves condition is suitable for polyurethane cushion, hydro-pneumatic buffer joint polyurethane cushion and tuner-type damper
Use condition.
A set of live stormy waves monitoring system being made of anemobiagraph and wave instrument is established at girder steel bridge site to be hung, and is built simultaneously
The a set of crane barge being made of Attitude tester and inclinator-girder steel vibration test system is found, steel beam lifting process wind is used for
Wave monitoring；After girder steel and crane barge are in place, a set of Attitude instrument is installed in crane barge centroid position respectively, is pacified in girder steel centroid position
A set of inclinator is filled, crane barge-girder steel system vibration monitoring for marine steel beam lifting；Then, it is supervised by live stormy waves in real time
It surveys and crane barge-girder steel system vibration is tested, establish live stormy waves condition and crane barge-girder steel system relationship；It is vibrated by girder steel
Situation determines whether steel beam lifting needs to carry out the specific buffer shock-absorbing measure of buffer shock-absorbing and required use.
Corresponding lateral bolster and vertical bolster is respectively set in vibration insulating system according to critical stormy waves condition in step 2.
One feasible to be respectively set in vibration insulating system corresponding lateral bolster and vertical slow according to critical stormy waves condition
The method of stamping is as follows:
On the one hand, the vertical motion data in collected live stormy waves condition data are made with polyurethane cushion respectively
Compared with the data interval of condition, hydro-pneumatic buffer use condition, hydro-pneumatic buffer joint polyurethane cushion use condition
Compared with the vertical bolster that selection accordingly meets use condition carries out buffer shock-absorbing.
It is less than hydro-pneumatic buffer joint polyurethane cushion when live stormy waves condition is greater than polyurethane cushion use condition
When use condition, then individually vertically buffered using polyurethane cushion.Specifically, it is first determined required polyurethane cushion
Density and size, for example, for across footpath be 40 meters, combined girder steel that is 20 meters wide, 15 meters high, weighing 1200 tons, it is close using four pieces
Degree is 50kg/m3, having a size of 1.2m × 1.2m × 0.3m polyurethane cushion, be evenly arranged on four angle points of girder steel；Then use
Polyurethane foam material spraying generates polyurethane cushion, or with field-installed polyurethane cushion after factory process stripping and slicing,
Bridge pier top surface or girder steel bottom surface are mounted on before steel beam lifting.Preferably, the polyurethane cushion that the present invention uses is using buffering
Close (40~60kg/m during effect is good3) polyurethane foam as cushion, mainly generates by polyurethane foam, there is processing
The features such as convenient, cheap and ambient adaptability is strong.Polyurethane foam have it is soft bubble and two kinds of hard bubble, the present invention in it is preferable to use
Soft bubble polyurethane material.Soft polyurethane foam is mostly open-celled structure, has the performances such as density is low, elastic recovery is good, rigidity is smaller,
It, being capable of cracking absorption impact kinetic energy when working as a buffer.
If stormy waves is big at bridge site, hoisting process girder steel vertical motion is big, and simple polyurethane cushion buffering is unable to satisfy
Vertical buffer requirement then uses liquid gas when live stormy waves condition is greater than hydro-pneumatic buffer joint polyurethane cushion use condition
Buffer joint polyurethane cushion is vertically buffered；Specifically, selecting liquid gas buffering according to girder steel quality and amplitude first
Type number and quantity, such as be 40 meters, combined girder steel that is 20 meters wide, 15 meters high, weighing 1200 tons for across footpath, it can be selected 4
The hydro-pneumatic buffer that~8 strokes are 30cm, range is 100 tons；Then, hydro-pneumatic buffer is uniform before girder steel formally lifts
It is arranged in girder steel and bridge pier position of collision, is bolted to girder steel bottom surface.
On the other hand, girder steel oscillation crosswise frequency comparison field measurement girder steel oscillation crosswise frequency can be calculated according to pendulum length,
It determines that tuner-type damper controls frequency, a set of tuner-type damper that can be recycled is designed according to girder steel amplitude and tonnage.
Tuner-type damper can be individually arranged in setting or is arranged with discrete form multiple, and specific transverse direction tuner-type damper is optional
With TMD, TLD, TLCD and TLMD etc..
In setting up procedure, tuner-type damper can be mounted on girder steel span centre position before steel beam lifting, it is solid using bolt
It is fixed, it ensures better lateral vibration absorbing effect, while controlling the girder steel transverse direction amplitude of oscillation, guarantees that span centre girder steel is accurately fed.The present invention adopts
Tuner-type damper is made of mass block, spring, damper.Mass block passes through spring (connector) and damper (energy consumption
Damping device) it links together with main structure, generally it is supported or suspended from main structure.The presence of mass block generates original structure
Additional quality, rigidity and damping, tune its natural frequency of vibration by these fundamental characteristics of minor structure, it can be made to connect as far as possible
The vibration frequency of the nearly main structure control vibration shape.When structure generates vibration under outer incentive action, main structure drives tuning quality
Damping shock absorber system is vibrated together, and the inertia force that tuning quality damping shock absorber system's relative motion generates reacts to structure
On, control is generated to the vibration of structure, the damper in tuning quality damping vibration attenuation device system will also play energy consumption effect, thus
Achieve the purpose that reduce structural vibration reaction.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of vibration reduction and cushioning system for marine steel beam lifting, is set on the bridge pier to hoisting steel beam, feature exists
In, comprising:
Automatic recognition system is set on bridge pier, including stormy waves detection components and vibration-testing component, the stormy waves detection group
Part includes anemobiagraph and wave instrument, and the vibration-testing component includes Attitude instrument and inclinator；
Vibration insulating system is set on the bridge pier or girder steel.
2. the vibration reduction and cushioning system as described in claim 1 for marine steel beam lifting, it is characterised in that: the vibration insulating system
Including Buffer Unit, the Buffer Unit includes cushion, and the cushion is set to bridge pier top surface or girder steel bottom surface.
3. the vibration reduction and cushioning system as claimed in claim 2 for marine steel beam lifting, it is characterised in that: the Buffer Unit
It further include hydro-pneumatic buffer, the hydro-pneumatic buffer is set to girder steel both ends, is fixed using bolt anchor ear.
4. the vibration reduction and cushioning system as claimed in claim 2 for marine steel beam lifting, it is characterised in that: the Buffer Unit
It further include tuner-type damper, the tuner-type damper includes TMD, TLD, TLCD or TLMD, and makes to be bolted to steel
Position in girder span.
5. a kind of vibration reduction and cushioning method for marine steel beam lifting characterized by comprising
Vibration reduction and cushioning system is set, identifies critical stormy waves condition using automatic recognition system；
Corresponding lateral bolster and vertical bolster are respectively set in vibration insulating system according to critical stormy waves condition.
6. the vibration reduction and cushioning method as claimed in claim 5 for marine steel beam lifting, which is characterized in that described according to critical
Corresponding lateral bolster is respectively set in vibration insulating system in stormy waves condition and vertical bolster specifically includes:
Determine whether steel beam lifting needs to carry out buffer shock-absorbing by girder steel Vibration Condition；
When needing to carry out buffer shock-absorbing, live stormy waves condition is judged, select Buffer Unit by following principle and installed: working as scene
It is when stormy waves condition is greater than polyurethane cushion use condition less than hydro-pneumatic buffer joint polyurethane cushion use condition, then single
Solely vertically buffered using polyurethane cushion；Make when live stormy waves condition is greater than hydro-pneumatic buffer joint polyurethane cushion
When with condition, vertically buffered using hydro-pneumatic buffer joint polyurethane cushion；Between girder steel lateral amplitude of vibration is greater than girder steel
When spacing, weave control is carried out using lateral tuner-type damper.
7. the vibration reduction and cushioning method as claimed in claim 6 for marine steel beam lifting, it is characterised in that: the independent use
Polyurethane cushion vertically buffered the following steps are included:
Polyurethane cushion density, size and position needed for determining；
In bridge pier top surface or girder steel bottom surface spraying polyurethane foamed material or assembling polyurethane block.
8. the vibration reduction and cushioning method as claimed in claim 6 for marine steel beam lifting, it is characterised in that: described to use liquid gas
Buffer joint polyurethane cushion vertically buffered the following steps are included:
According to girder steel quality and amplitude, hydro-pneumatic buffer model and quantity are selected；
Before girder steel formally lifts, hydro-pneumatic buffer is evenly arranged in girder steel and bridge pier position of collision, is bolted to
Girder steel bottom surface.
9. the vibration reduction and cushioning method as claimed in claim 5 for marine steel beam lifting, which is characterized in that the setting vibration damping
Buffer system identifies that critical stormy waves condition specifically includes using automatic recognition system:
Anemobiagraph and wave instrument are installed at girder steel bridge site to be hung, monitored for steel beam lifting process stormy waves；
After girder steel and crane barge are in place, hull posture instrument is installed in crane barge centroid position, and in girder steel centroid position mounted angle instrument；
Establish the relationship between stormy waves condition and crane barge-steel beam lifting system vibration；
Determine whether steel beam lifting needs to carry out the specific buffer shock-absorbing of buffer shock-absorbing and required use by girder steel Vibration Condition
Measure.
10. the vibration reduction and cushioning method as claimed in claim 9 for marine steel beam lifting, it is characterised in that: described specific slow
Eating up part of vibration means includes polyurethane cushion buffering, hydro-pneumatic buffer joint polyurethane cushion buffering and tuner-type damper
Vibration damping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354238.9A CN109516386B (en) | 2018-11-14 | 2018-11-14 | Vibration reduction buffering method and system for hoisting offshore steel beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811354238.9A CN109516386B (en) | 2018-11-14 | 2018-11-14 | Vibration reduction buffering method and system for hoisting offshore steel beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109516386A true CN109516386A (en) | 2019-03-26 |
| CN109516386B CN109516386B (en) | 2020-05-05 |
Family
ID=65777782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811354238.9A Active CN109516386B (en) | 2018-11-14 | 2018-11-14 | Vibration reduction buffering method and system for hoisting offshore steel beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109516386B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772011A (en) * | 2021-10-27 | 2021-12-10 | 广州文冲船厂有限责任公司 | Shock absorber structure, mounting method thereof and ship |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6319336A (en) * | 1986-07-09 | 1988-01-27 | Miyaji Tekkosho:Kk | Transporting device |
| CN103276664A (en) * | 2011-04-27 | 2013-09-04 | 清华大学 | Piezoelectric energy-harvesting tuned mass damper |
| CN103318776A (en) * | 2012-06-28 | 2013-09-25 | 上海振华重工(集团)股份有限公司 | Active heave compensation control system and control method thereof |
| CN204455848U (en) * | 2015-02-10 | 2015-07-08 | 中交一航局第一工程有限公司 | The installation positioning system of large-scale steel box-girder |
| CN207943788U (en) * | 2018-03-03 | 2018-10-09 | 中交第二航务工程局有限公司 | A kind of steel box-girder lifting limit damper |
-
2018
- 2018-11-14 CN CN201811354238.9A patent/CN109516386B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6319336A (en) * | 1986-07-09 | 1988-01-27 | Miyaji Tekkosho:Kk | Transporting device |
| CN103276664A (en) * | 2011-04-27 | 2013-09-04 | 清华大学 | Piezoelectric energy-harvesting tuned mass damper |
| CN103318776A (en) * | 2012-06-28 | 2013-09-25 | 上海振华重工(集团)股份有限公司 | Active heave compensation control system and control method thereof |
| CN204455848U (en) * | 2015-02-10 | 2015-07-08 | 中交一航局第一工程有限公司 | The installation positioning system of large-scale steel box-girder |
| CN207943788U (en) * | 2018-03-03 | 2018-10-09 | 中交第二航务工程局有限公司 | A kind of steel box-girder lifting limit damper |
Non-Patent Citations (1)
| Title |
|---|
| 沈大才、马晓东: "平潭海峡公铁两用大桥钢梁架设关键技术", 《桥梁建设》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113772011A (en) * | 2021-10-27 | 2021-12-10 | 广州文冲船厂有限责任公司 | Shock absorber structure, mounting method thereof and ship |
| CN113772011B (en) * | 2021-10-27 | 2022-11-29 | 广州文冲船厂有限责任公司 | Shock absorber structure, mounting method thereof and ship |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109516386B (en) | 2020-05-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Priestley et al. | Seismic response of structures free to rock on their foundations | |
| US6672837B1 (en) | Wind turbine with oscillation damping means | |
| Adrezin et al. | Dynamic response of compliant offshore structures | |
| CN105780640B (en) | One kind can reset shapes memorial alloy multidimensional shock insulation support | |
| CN105735111B (en) | Bridge pier bottom ellipsoid self-resetting swinging shock design method | |
| Chandrasekaran et al. | Offshore compliant platforms: analysis, design, and experimental studies | |
| CN109516386A (en) | A kind of vibration reduction and cushioning method and system for marine steel beam lifting | |
| GB2165512A (en) | Offshore structure having motion damping apparatus | |
| Shum et al. | Multiple‐tuned liquid column dampers for torsional vibration control of structures: experimental investigation | |
| Bunnik et al. | Coupled mooring analysis and large scale model tests on a deepwater calm buoy in mild wave conditions | |
| Miskiewicz et al. | Structural health monitoring system for suspension footbridge | |
| CN109606575B (en) | Bridge ladder buffer device and bridge ladder with buffer function | |
| Kahla | Dynamic analysis of guyed towers | |
| Bonelli et al. | Dynamic identification and structural health monitoring of a twin deck curved cable-stayed footbridge: the “Ponte del Mare” of Pescara in Italy | |
| Parish et al. | Reducing Peak & Fatigue Mooring Loads: A Validation Study for Elastomeric Moorings | |
| CN209082754U (en) | A kind of tensile type friction physical pendulum steel construction shock isolating pedestal | |
| Bar-Avi et al. | Planar motion of an articulated tower with an elastic appendage | |
| CN110067192B (en) | High-speed rail bridge damping support with high damping self-resetting function and damping method | |
| Aghajani Delavar et al. | Prediction of local seismic damage in jacket-type offshore platforms | |
| CN211792346U (en) | Ship pollutant on-line monitoring device | |
| Chang et al. | Running safety and behavior tests for a scaled-down railway vehicle crossing a floating bridge | |
| KR102464734B1 (en) | System for realtime evaluating soundness of fender for vessel docking guide, and method for the same | |
| Jia | Introduction to Dynamics, Vibrations and Impacts | |
| Wang | Analysis and Design Bjørnefjorden Floating Cable-Stayed Bridge subjected to Large Ship Collisions and Extreme Environmental Loads | |
| Sun et al. | Asymmetric water entry of a bow-flare ship section with roll angle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |