CN107188039A - Overhead trolley combined hanging method - Google Patents
Overhead trolley combined hanging method Download PDFInfo
- Publication number
- CN107188039A CN107188039A CN201710407233.7A CN201710407233A CN107188039A CN 107188039 A CN107188039 A CN 107188039A CN 201710407233 A CN201710407233 A CN 201710407233A CN 107188039 A CN107188039 A CN 107188039A
- Authority
- CN
- China
- Prior art keywords
- lifting
- overhead trolley
- assembly
- sub
- hanging method
- 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
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/107—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means for lifting engines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a kind of overhead trolley combined hanging method, comprise the following steps：Lifting part is combined：At least two scattered lifting parts are combined to form lifting sub-assembly using auxiliary member；Lifting：Lifting sub-assembly is lifted by crane using overhead trolley；Lifting is in place：Overhead trolley will lift sub-assembly and transport to target location and dropping place；Fastening lifting sub-assembly：Lifting sub-assembly is installed and is anchored on target location；Remove auxiliary member.The present invention is formed after sub-assembly by the way that scattered lifting part is connected using auxiliary member, is lifted using overhead trolley, the auxiliary member of combination is finally removed again, this mode need not set up suspension centre, it is not required that increase bottle gouard moved by hands.And the mode once lifted after this combination, reduce precision adjustment difficulty after lifting.The method improves operating efficiency, reduces labor intensity, has saved cost, shortened construction period.
Description
Technical field
The present invention relates to hanging method field, especially, it is related to a kind of overhead trolley combined hanging method.
Background technology
Aircraft engine test stand includes test bay factory building and test bay process equipment.During certain test bay workshop building,
What is installed in test cell is a mono rail motor chain block crane, and electric block is arranged on the I-shaped hung under the factory building roof truss of test cell
On steel, I-steel is arranged in the middle of factory building, so overhead trolley operating path front and rear can only be walked, and is unable to left and right rows and is walked.This
Crane designed use is that engine is lifted on stand from ground, so walking can meet use requirement before and after only needing to.But
It is, after test bay workshop building is complete, when carrying out the installation of test bay process equipment system, the device distribution of some heavier mass
In all directions of factory building, it is also desirable to crane lifting.
Gas extraction system in certain test bay process equipment is divided into left exhaust and right exhaust.The one-level injection cylinder peace of gas extraction system
In test cell, the first from left level injection cylinder is consistent with right one-level injection barrel structure, is distributed in centered on engine mounting stand frame
Both sides.Required precision after one-level injection cylinder is installed is very high.
In installation process, because the crane of test cell is overhead trolley, can only before and after walking, can not left and right walking, because
This one-level injection cylinder adds great difficulty not in the range of the lifting of crane to installation.It is at one one according to previous experiences
Level injection cylinder is installed sets up 2 suspension centres under the factory building roof truss of vertical line position, is installed using 2 bottle gouards moved by hands.Left and right each one
Individual one-level injection cylinder, it is necessary to set up 4 suspension centres.The method also needs manually to set up suspension centre, it is necessary to carry out Strength co-mputation to suspension centre,
Increase workload；Next needs to increase bottle gouard moved by hands, increases the input of equipment, and artificial drawing cucurbit reduction operating efficiency；This peace
Dress method also has bigger defect to be that left and right injection cylinder is respectively mounted, it is difficult to which it is consistent and to engine to adjust both absolute altitudes
Centre distance is consistent, is extremely difficult to technical requirements.
The content of the invention
The invention provides a kind of overhead trolley combined hanging method, to solve existing to be distributed in hanging for overhead trolley both sides
Piece installing need to increase suspension centre lifted using bottle gouard moved by hands, increase workload and equipment input and respectively lifting cause to lift
Afterwards it is difficult to the technical problem of Adjustment precision requirement.
The technical solution adopted by the present invention is as follows：
A kind of overhead trolley combined hanging method, comprises the following steps：Lifting part is combined：It will be disperseed extremely using auxiliary member
Few two lifting parts combine to form lifting sub-assembly；Lifting：Lifting sub-assembly is lifted by crane using overhead trolley；Lifting is just
Position：Overhead trolley will lift sub-assembly and transport to target location and dropping place；Fastening lifting sub-assembly：Lifting sub-assembly is installed tight
It is fixed in target location；Remove auxiliary member.
Further, before lifting part combination step, in addition to check target location installation foundation the step of.
Further, before lifting part combination step, in addition to judge whether hoisting weight meets the step of safety requirements
Suddenly.Judge that the step of whether hoisting weight meets safety requirements includes：Calculate the gross weight of each lifting part, Sling Rope and auxiliary member
Amount, is multiplied by the result that safety coefficient obtains by gross weight and is compared with the safe hoisting weight of overhead trolley, if result is less than safety
Hoisting weight, then meet safety requirements.
Further, lifting part combination step includes：Scattered lifting part is arranged in the both sides of overhead trolley, and makes to hang
Relative position between piece installing meets the technical requirements in fastening steps.
Alternatively, lifting part combination step includes：Ensure that the center of gravity for lifting sub-assembly is located at the underface of overhead trolley.
Further, before lifting, colligation one is distinguished in the corner of lifting sub-assembly to be used to correct swing in hoisting process
The Sling Rope of skew.
Alternatively, target location is provided with buffer board, and lifting sub-assembly dropping place is on buffer board when lifting in place.
Further, before fastening steps, in addition to precision is the step of adjust：By the position of the lifting sub-assembly after dropping place
Precision carries out integrated regulation.
Preferably, in the step of lifting part is combined, by two structures are identical or symmetrical lifting part is using combining shaped steel
Welding is combined into lifting sub-assembly.
The present invention is formed after sub-assembly by the way that scattered lifting part is connected using auxiliary member, is hung using overhead trolley
Dress, finally removes the auxiliary member of combination, this mode need not set up suspension centre again, it is not required that increase bottle gouard moved by hands.And this
The mode once lifted after combination is planted, precision adjustment difficulty after lifting is reduced.The method improves operating efficiency, reduces work
Intensity, has saved cost, shortens construction period.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to accompanying drawings, the present invention is further detailed explanation.
Brief description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the overhead trolley combined hanging method of the present invention；
Fig. 2 is the structural representation of certain aircraft engine test stand one-level injection cylinder of the preferred embodiment of the present invention；
Fig. 3 is that certain aircraft engine test stand one-level injection cylinder of the preferred embodiment of the present invention is hung using overhead trolley combination
The structure schematic diagram of dress；
Fig. 4 is that certain aircraft engine test stand one-level injection cylinder of the preferred embodiment of the present invention is hung using overhead trolley combination
The flow chart of dress.
Drawing reference numeral explanation：
1st, one-level injection cylinder；11st, the first from left level injection cylinder；12nd, right one-level injection cylinder；13rd, front port；14th, rear port；2nd, rail
Road；3rd, overhead trolley；4th, Sling Rope；5th, combination shaped steel；51st, prelocalization shaped steel；52nd, shaped steel is positioned afterwards；53rd, reinforced steel.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Reference picture 1, of the invention provides a kind of overhead trolley combined hanging method, comprises the following steps：
Step s1, lifting part combination.Specifically include：Scattered lifting part is arranged in the both sides of overhead trolley, and makes to hang
Relative position between piece installing meets the technical requirements in follow-up fastening steps.Each lifting part is combined to be formed using auxiliary member and hung
Fill sub-assembly.Ensure that the center of gravity for lifting sub-assembly is located at the underface of overhead trolley.
Step s2, lifting.Lifting sub-assembly is lifted by crane using overhead trolley.
Step s3, lifting is in place.Overhead trolley will lift sub-assembly and transport to target location and dropping place, and target location is set
Buffer board is equipped with, lifting sub-assembly dropping place is on buffer board when lifting in place.
Step s4, fastening lifting sub-assembly.Lifting sub-assembly is installed and is anchored on target location.
Step s5, removes auxiliary member.
Reference picture 2 to Fig. 4, the preferred embodiments of the present invention are drawn using overhead trolley to certain aircraft engine test stand one-level
Shooting cylinder 1 is combined lifting.
Certain aircraft engine test stand includes test bay factory building and test bay process equipment.During certain test bay workshop building,
What is installed in test cell is an overhead trolley 3, and electric block is arranged on the bull headction hung under the factory building roof truss of test cell
On road 2, i-beam track 2 is arranged in the middle of factory building, so the operating path of overhead trolley 3 front and rear can only be run.
Gas extraction system in test bay process equipment is divided into left exhaust and right exhaust.The one-level injection cylinder 1 of gas extraction system is pacified
In test cell, one-level injection cylinder 1 includes structure identical the first from left level injection cylinder 11 and right one-level injection cylinder 12, is stainless steel
Material, the two is distributed in both sides, center absolute altitude 3000mm centered on engine mounting stand frame.In this preferred embodiment, specifically
Combined hanging method following steps：
Step s100, the preparation before lifting.
According to lifting needs, site clearing is allowed to meet lifting condition.Tool materials on deck, and carry out inspection at the scene
Look into checking and accepting, it is ensured that equipment is normally used.Whether securely to check rigging, shackle, it is whether normal with electric line, equipment,
Whether various accessories provide in place.
Step s200, installation foundation inspection.
It is to the first from left level injection cylinder 12, mounting seat (not shown) on-station position of right one-level injection cylinder 11 and mounting seat
It is no solid and reliable to be checked.
Step s300, judges whether hoisting weight meets safety requirements.Calculate left and right one-level injection cylinder 11,12, Sling Rope
4 and the combination gross weight of shaped steel 5, the gross weight is multiplied by result and the safety of overhead trolley 3 that safety coefficient obtains and risen
Lift heavy amount compares, if less than safe hoisting weight, meeting safety requirements.The safe hoisting weight of test cell overhead trolley 3 is
2T, the gross weight of left and right one-level injection cylinder 11,12 and Sling Rope 4 is about 1400Kg, and therefore, the weight of auxiliary member is no more than
600Kg.In the present embodiment, combination shaped steel 5 is significantly less weight than 600Kg, meets combined hanging requirement.
Step s400, lifting part combination.Specifically include following steps：
Step s401, left and right one-level injection cylinder 11,12 is respectively arranged in the both sides of overhead trolley 3, and make left and right one
Be symmetrical arranged between level injection cylinder 11,12, predetermined distance between the front end of left and right one-level injection cylinder 11,12 and before being formed
Predetermined distance between port 13, the rear end of left and right one-level injection cylinder 11,12 and shape rear port 14.
Step s402, according to the structure shown in Fig. 3, processes the front port 13 of one and left and right one-level injection cylinder 11,12
The identical size of spacing prelocalization shaped steel 51, by left and right one-level injection cylinder 11,12 front port 13 be welded to connect,
Ensure the requirement of the size of front port 13；Equally processing a piece size identical with the spacing of rear port 14 rear positioning shaped steel 52, by a left side,
The rear port 14 of right one-level injection cylinder 11,12 is welded to connect, to ensure the requirement of the size of rear port 14.Now left and right one-level
Injection cylinder 11,12 is combined into an entirety, approximate quadrangle.
In this preferred embodiment, because left and right one-level injection cylinder 11,12 includes bending segment and straightway, the front end of the two
Between standoff distance be change, therefore welded at front port 13 the prelocalization shaped steel 51 of two different lengths.Similarly,
With straightway intersection one and the spacing dimension phase of rear port 14 have also been welded in the bending segment of left and right one-level injection cylinder 11,12
Same rear positioning shaped steel 52.
Step s403, checks the Diagonal Dimension of quadrangle, is adapted to pair by adjusting left and right one-level injection cylinder 11,12
Diagonal dimension is consistent, and now left and right one-level injection cylinder 11,12 has reached the pitch requirements in follow-up fastening steps.
Step s404, is welded, it is ensured that combination is integral rear whole using reinforced steel 53 and left and right one-level injection cylinder 11,12
Body lifting has enough intensity.Similarly, in this preferred embodiment, two are welded between left and right one-level injection cylinder 11,12
Reinforced steel 53, two reinforced steels 53 are located at respectively positions the straight of shaped steel 52 and left and right one-level injection tins 11,12 after two
On the diagonal of the quadrangle of line segment composition.
After combinations thereof step is completed on ground, and the combination of left and right one-level injection cylinder 11,12 is integral, center of gravity will it is left,
On the line of symmetry of right one-level injection cylinder 11,12, that is, in the underface of overhead trolley 3.It now will be possible to use the list of factory building
Rail crane 3 is steadily lifted by crane.After the left and right combination of one-level injection cylinder 11,12 is integral, the installation in place after lifting will be greatly shortened
The difficulty and adjustment time of precision adjustment.
Step s500, lifting.
Find the suspension centre of lifting sub-assembly accurately, it is ensured that sub-assembly is lifted during lifting steadily, and each hoisting point position uniform force.Hang
After point is found accurately, fixed Sling Rope 4 makes it not relative to lifting sub-assembly movement.In the present embodiment, because lifting centre-height is
3000mm, therefore the swing during piece Sling Rope 4 of colligation is used for correcting hoisting process is distinguished in the corner of lifting sub-assembly quadrangle
Skew.Steadily slowly rise during lifting, and steadily at the uniform velocity advance.
Step s600, lifting is in place.
By left and right one-level injection cylinder 11,12 combined with combination shaped steel 5 formation lifting sub-assembly transport simultaneously dropping place in
In mounting seat, buffered when falling into mounting seat with fluoroplastic plate.
Step s700, precision adjustment.
Because left and right one-level injection cylinder 11,12 is combined hanging, it ensure that left and right one-level is drawn when ground is combined
The relative position of shooting cylinder 11,12, that is, ensure that the center spacing of left and right one-level injection cylinder 11,12.Hung therefore it may only be necessary to adjust
The centre symmetry line of sub-assembly is filled at factory building center.Still adjusted in this step using entire combination, left and right one-level is drawn
Shooting cylinder 11,12 accurate adjustments to desired size.The difficulty and adjustment time of adjustment are greatly reduced by combining adjustment.
Step s800, fastening lifting sub-assembly：The left and right one-level injection cylinder 11,12 that required precision is reached after adjustment is entered
Row installation is anchored on mounting seat.
Step s900, removes auxiliary member：Combination is removed with shaped steel 5 from left and right one-level injection cylinder 11,12.
Above-described embodiment only provides the hanging method of left and right one-level injection cylinder 11,12 two lifting parts, in other embodiments
In, more than two lifting parts can also be combined with lifting, or the symmetrical lifting part of two or more is combined hung
Dress, the invention is not limited in this.
The present invention is solved by above overhead trolley combined hanging method to be distributed in the parts of the both sides of overhead trolley 3 and hangs
Problem is filled, in aircraft engine test stand process of construction with good.The combined hanging method of the present invention need not set up suspension centre,
Also without increase bottle gouard moved by hands；Once lifted after combination, greatly reduce the difficulty that precision is adjusted after lifting, also improve
Operating efficiency, reduces labor intensity, has saved cost, shortened construction period；With extensive application value.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of overhead trolley combined hanging method, it is characterised in that comprise the following steps：
Lifting part is combined：At least two scattered lifting parts are combined to form lifting sub-assembly using auxiliary member；
Lifting：The lifting sub-assembly is lifted by crane using overhead trolley；
Lifting is in place：The overhead trolley transports the lifting sub-assembly to target location and dropping place；
Fasten the lifting sub-assembly：The lifting sub-assembly is installed and is anchored on the target location；
Remove the auxiliary member.
2. overhead trolley combined hanging method according to claim 1, it is characterised in that in the lifting part combination step
Before, in addition to the step of check the installation foundation of the target location.
3. overhead trolley combined hanging method according to claim 1, it is characterised in that in the lifting part combination step
Before, in addition to the step of whether hoisting weight meets safety requirements is judged.
4. overhead trolley combined hanging method according to claim 3, it is characterised in that described whether to judge hoisting weight
The step of meeting safety requirements includes：The gross weight of each lifting part, Sling Rope and the auxiliary member is calculated, will be described total
Weight is multiplied by the result that safety coefficient obtains and compared with the safe hoisting weight of the overhead trolley, if the result be less than it is described
Safe hoisting weight, then meet safety requirements.
5. overhead trolley combined hanging method according to claim 1, it is characterised in that the lifting part combination step bag
Include：The scattered lifting part is arranged in the both sides of the overhead trolley, and accords with the relative position between the lifting part
Close the technical requirements in the fastening steps.
6. overhead trolley combined hanging method according to claim 1, it is characterised in that the lifting part combination step bag
Include：Ensure that the center of gravity of the lifting sub-assembly is located at the underface of the overhead trolley.
7. overhead trolley combined hanging method according to claim 1, it is characterised in that before lifting, in the lifting group
Distinguish the Sling Rope that colligation one is used to correct wobble deviation in hoisting process in the corner of component.
8. overhead trolley combined hanging method according to claim 1, it is characterised in that the target location is provided with
Buffer board, the lifting sub-assembly dropping place is on the buffer board when lifting in place.
9. overhead trolley combined hanging method according to claim 1, it is characterised in that before the fastening steps, also
The step of being adjusted including precision：The positional precision of the lifting sub-assembly after dropping place is subjected to integrated regulation.
10. overhead trolley combined hanging method according to claim 1, it is characterised in that the step of the lifting part combination
In rapid, the identical or symmetrical lifting part of two structures is combined into the lifting sub-assembly using shaped steel welding is combined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407233.7A CN107188039B (en) | 2017-06-02 | 2017-06-02 | Overhead trolley combined hanging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710407233.7A CN107188039B (en) | 2017-06-02 | 2017-06-02 | Overhead trolley combined hanging method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107188039A true CN107188039A (en) | 2017-09-22 |
| CN107188039B CN107188039B (en) | 2019-02-19 |
Family
ID=59877003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710407233.7A Active CN107188039B (en) | 2017-06-02 | 2017-06-02 | Overhead trolley combined hanging method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107188039B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196278A (en) * | 2020-09-16 | 2021-01-08 | 飞帆集团有限公司 | Special-shaped streamer and mounting method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086000A (en) * | 2009-12-08 | 2011-06-08 | 中冶成工上海五冶建设有限公司 | Onsite splicing and mounting method for extra-large and overweight box crane girders |
| CN102134833A (en) * | 2011-02-21 | 2011-07-27 | 中国一冶集团有限公司 | Construction method for hoisting and disassembling bailey truss |
| CN102184747A (en) * | 2011-03-18 | 2011-09-14 | 山东核电设备制造有限公司 | Modular steel containment vessel annular hanging beam and assembling method thereof |
| CN102505860A (en) * | 2011-10-21 | 2012-06-20 | 温州建设集团有限公司 | Novel Lifting method for irregularly-shaped steel structure member |
| CN103410333A (en) * | 2013-08-16 | 2013-11-27 | 中国建筑第八工程局有限公司 | Construction method of special-shaped irregular steel structure |
| CN106395628A (en) * | 2015-11-30 | 2017-02-15 | 中国化学工程第三建设有限公司 | Hoisting and overhead-assembling method for sections of heavy tower equipment |
-
2017
- 2017-06-02 CN CN201710407233.7A patent/CN107188039B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086000A (en) * | 2009-12-08 | 2011-06-08 | 中冶成工上海五冶建设有限公司 | Onsite splicing and mounting method for extra-large and overweight box crane girders |
| CN102134833A (en) * | 2011-02-21 | 2011-07-27 | 中国一冶集团有限公司 | Construction method for hoisting and disassembling bailey truss |
| CN102184747A (en) * | 2011-03-18 | 2011-09-14 | 山东核电设备制造有限公司 | Modular steel containment vessel annular hanging beam and assembling method thereof |
| CN102505860A (en) * | 2011-10-21 | 2012-06-20 | 温州建设集团有限公司 | Novel Lifting method for irregularly-shaped steel structure member |
| CN103410333A (en) * | 2013-08-16 | 2013-11-27 | 中国建筑第八工程局有限公司 | Construction method of special-shaped irregular steel structure |
| CN106395628A (en) * | 2015-11-30 | 2017-02-15 | 中国化学工程第三建设有限公司 | Hoisting and overhead-assembling method for sections of heavy tower equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112196278A (en) * | 2020-09-16 | 2021-01-08 | 飞帆集团有限公司 | Special-shaped streamer and mounting method thereof |
| CN112196278B (en) * | 2020-09-16 | 2022-01-25 | 飞帆集团有限公司 | Special-shaped streamer and mounting method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107188039B (en) | 2019-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101328746B (en) | Steel structure high altitude mounting method | |
| CN103075025B (en) | Integral lifting construction method for giant cantilever steel asymmetric structure of high-rise building | |
| CN106087752B (en) | Multispan cable-carried arch bridge construction method | |
| CN103883129B (en) | A kind of steel structural roof beam installation method | |
| CN111335178B (en) | Small-curve-radius steel box girder bridge girder erection machine and erection construction method | |
| CN105421792A (en) | Lifting construction process of modular steel structural components | |
| CN104453248A (en) | Complex irregular-shaped multi-layer net rack construction method based on layered modular assembling technology | |
| CN108116973A (en) | A kind of adjustable self-balancing hanging apparatus | |
| CN114941432B (en) | Combined construction method for ultra-large span prestressed beam and double-layer steel corridor inclined column | |
| CN108217456A (en) | A kind of framing type steel box-girder middle cross beam lifts self-level(l)ing device | |
| CN110528678A (en) | A kind of multilayer steel frame vestibule installation method between staggered floor high building | |
| CN107188039A (en) | Overhead trolley combined hanging method | |
| CN104775363A (en) | Assembling method of upper tower column reinforcing steel bar segment | |
| CN110886218B (en) | Main cable profile steel anchoring system of large-span suspension bridge and construction method | |
| CN107285200A (en) | A kind of high large-span truss integral translation construction method for hanging | |
| CN103743581B (en) | Internal climbing tower crane test platform device and test method | |
| CN104060838A (en) | Grouping and air-pairing installation method for corridor | |
| CN113832864A (en) | Lifting closure construction method for arch rib of steel box arch bridge | |
| CN108221697A (en) | A kind of entirety steel arch bridge bridge floor panel grider construction method for hanging | |
| CN104213715A (en) | Venue giant arch structure high-altitude inclination deflection lifting method | |
| CN207268596U (en) | A kind of detection tool device of coating lifting | |
| CN101435180B (en) | Steel cap positioning method | |
| CN103072004A (en) | Installation method of electric hoist hanger | |
| CN112623958B (en) | Pipe gallery module deck hoisting method | |
| CN114892662B (en) | Full-automatic hoisting method suitable for underground prefabricated structure |
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 |