CN106544957B - Length adjustment device, stiffening girder of suspension bridge mounting system and method - Google Patents
Length adjustment device, stiffening girder of suspension bridge mounting system and method Download PDFInfo
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- CN106544957B CN106544957B CN201610900599.3A CN201610900599A CN106544957B CN 106544957 B CN106544957 B CN 106544957B CN 201610900599 A CN201610900599 A CN 201610900599A CN 106544957 B CN106544957 B CN 106544957B
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- 239000000725 suspension Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 claims abstract description 70
- 230000001105 regulatory effect Effects 0.000 claims abstract description 44
- 229910000831 Steel Inorganic materials 0.000 claims description 45
- 239000010959 steel Substances 0.000 claims description 45
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 240000009087 Crescentia cujete Species 0.000 claims 1
- 235000005983 Crescentia cujete Nutrition 0.000 claims 1
- 235000009797 Lagenaria vulgaris Nutrition 0.000 claims 1
- 235000014676 Phragmites communis Nutrition 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241001139947 Mida Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- 238000012946 outsourcing Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention provides a kind of length adjustment device, stiffening girder of suspension bridge mounting system and methods, it is related to technical field of bridge construction, which includes the first opposite adjusting screw rod of threaded line direction and the second adjusting screw rod and be threadedly connected to the regulating sleeve in the outside of the first adjusting screw rod and the second adjusting screw rod.The installation system includes erection support, deck erection gantry, hoist engine, interim hoist cable and above-mentioned length adjustment device, interim hoist cable includes being connected to the first hoist cable section and the second hoist cable section at length adjustment device both ends, first hoist cable section one end and the top of tower body connect, and second hoist cable section one end is connect with the first beam section.The installation system is adjusted the length of interim hoist cable using length adjustment device, to adjust the setting angle of stiff girder and installation site, adjusts more convenient.In addition, stiff girder, is then installed on bearing by this method elder generation erection support again, and is adjusted the installation of stiff girder using the length adjustment device of interim hoist cable, installation is more accurate.
Description
Technical field
The present invention relates to technical field of bridge construction, in particular to a kind of length adjustment device, stiffening girder of suspension bridge
Mounting system and method.
Background technology
Suspension bridge is also known as suspension bridge, refers to main as superstructure using the cable that two sides are hung and be anchored in by Sarasota
It weighs the bridge of component.To avoid in vehicle travel process, bridge floor deforms together with suspension cable, and modern suspension is generally equipped with
Stiff girder.Stiffening girder of suspension bridge mainly plays a part of to be made and transmit load, is subject to the master of wind load and other transverse horizontal forces
Want component.
At present, the mounting means of stiffening girder of suspension bridge is mainly using usually stiff girder is first installed, and treating stiff girder, installation is complete
Afterwards, the then erection support between stiff girder and the bottom end rail of tower body, stiff girder after installation is complete in the prior art, stiff girder
Setting angle and installation site are not easy to adjust, and are easy to cause by the way of rear erection support and adjust stiff girder repeatedly, so as to
Influence the installation accuracy of stiff girder.
Invention content
The purpose of the present invention is to provide a kind of length adjustment devices, can adjust the length at both ends, so as to play essence
The effect really adjusted.
The purpose of the present invention is to provide a kind of stiffening girder of suspension bridge installation systems, and stiffening girder of suspension bridge can be carried out
Installation, and can constantly regulate, to ensure installation accuracy, be easily installed simultaneously.
Another object of the present invention is to provide a kind of stiffening girder of suspension bridge installation method, peace that can be accurately and fast
Stiffening girder of suspension bridge is filled, installation effect is good.
What the embodiment of the present invention was realized in：
A kind of length adjustment device, including the first adjusting screw rod, the second adjusting screw rod and regulating sleeve, regulating sleeve spiral shell
Line is connected to the threaded line side in the outside of the first adjusting screw rod and the second adjusting screw rod, the first adjusting screw rod and the second adjusting screw rod
To opposite.
A kind of stiffening girder of suspension bridge installation system, suitable for stiff girder is installed on king-tower, including being installed on king-tower
The bearing of bottom end rail, the deck erection gantry of main push-towing rope for being installed on king-tower, the hoist engine for being installed on access bridge bridge floor, interim hoist cable and on
Length adjustment device is stated, stiff girder includes the first beam section and the second beam section that are connected with each other, and the first beam section is far from the second beam section
The tower body of one end and king-tower bottom connection, interim hoist cable include the first hoist cable section and the second hoist cable section, the first adjusting screw rod with
First hoist cable section connects, and the second adjusting screw rod is connect with the second hoist cable section, first one end of hoist cable section far from length adjustment device
It is connect with the top of tower body, the one end of the second hoist cable section far from length adjustment device is with the first beam section close to one end of the second beam section
Connection.
A kind of stiffening girder of suspension bridge installation method uses above-mentioned stiffening girder of suspension bridge installation system to be installed, puts more energy into
Beam includes the first beam section and the second beam section, including：The erection support first on the bottom end rail of king-tower；And in the tower body of king-tower
Top is installed by interim hoist cable；Secondly it lifts the first beam section and the both ends of the first beam section is respectively connected to tower body and interim hoist cable,
Then the distance between first hoist cable section of interim hoist cable and the second hoist cable section are adjusted using length adjustment device, make to face
When hoist cable length reach target length after, the first beam section is installed on bearing.
The advantageous effect of the embodiment of the present invention is：It is adjusted by rotating regulating sleeve with changing the first adjusting screw rod and second
The distance between screw rod, so as to fulfill the length of whole length regulating device, the first adjusting screw rod and the second adjusting screw rod is changed
Rotary orientation on the contrary, can realize when regulating sleeve is rotated, the first adjusting screw rod and the same phase of the second adjusting screw rod
Regulating sleeve is outwardly or inwardly moved.Using threaded adjusting, precision higher, while adjust more convenient.Meanwhile the present invention is real
Stiff girder is divided into the first beam section and the second beam section, and installed respectively by the stiffening girder of suspension bridge installation system for applying example offer,
Installation is more prone to, while interim hoist cable is connect with length adjustment device, using length adjustment device to the length of interim hoist cable
Degree is adjusted, and to adjust the setting angle of stiff girder and installation site, adjusting is more convenient, passes through the tune of length adjustment device
Section, makes stiff girder accurately be installed on bearing, after installation is complete, without being adjusted again, since bearing is accurately pacified in advance
Dress, then stiff girder is accurately installed, after eliminating stiff girder installation in the prior art, then between stiff girder and bottom end rail
Erection support, caused by stiff girder adjusting repeatedly, enormously simplify installation complexity and adjust difficulty.In addition, this
The stiffening girder of suspension bridge installation method that inventive embodiments provide, first accurately installs bearing, is then again installed stiff girder
In on bearing, the installation of stiff girder is adjusted using the length adjustment device of interim hoist cable, is avoided repeatedly to stiff girder
Installation site be adjusted, installation it is more accurate.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the structural representation that the stiffening girder of suspension bridge installation system that the embodiment of the present invention one provides is used to install stiff girder
Figure；
Fig. 2 is the cooperation of the deck erection gantry and stiff girder of stiffening girder of suspension bridge installation system that the embodiment of the present invention one provides
Schematic diagram；
Fig. 3 is the first beam section of stiffening girder of suspension bridge installation system and the company of the second beam section that the embodiment of the present invention one provides
Connect schematic diagram；
Fig. 4 is the structure diagram of the interim hoist cable of stiffening girder of suspension bridge installation system that the embodiment of the present invention one provides；
Fig. 5 is the structural representation of the length adjustment device of stiffening girder of suspension bridge installation system that the embodiment of the present invention one provides
Figure；
Fig. 6 is the sectional view of the interim hoist cable of stiffening girder of suspension bridge installation system that the embodiment of the present invention one provides；
Fig. 7 is the structural representation of the length adjustment device of stiffening girder of suspension bridge installation system provided by Embodiment 2 of the present invention
Figure.
Icon：110- bearings；The interim hoist cables of 120-；121- the first hoist cable sections；122- the second hoist cable sections；123- protective layers；
130- deck erection gantries；131- loop wheel machines walking foot；132- spacer pads；140- length adjustment devices；The first adjusting screw rods of 141-；
The second adjusting screw rods of 142-；143- regulating sleeves；The first threaded holes of 144-；The second threaded holes of 145-；240- length adjustment devices；
245- protection mechanisms；The first steel wire ropes of 246-；The second steel wire ropes of 247-；248- third steel wire ropes；200- stiff girders；201- first
Beam section；The second beam sections of 202-；203- fixing ends；204- abutting ends；The first ear mounts of 205-；206- connectors；300- king-towers；301-
Tower body；302- bottom end rails；303- main push-towing ropes；304- cord clips；The second ear mounts of 305-；The upper lifting lugs of 306-.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be configured to arrange and design with a variety of different.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiments obtained without creative efforts belong to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the instructions such as term " on ", " under ", "left", "right", " interior ", " outer "
Orientation or position relationship be based on orientation shown in the drawings or position relationship or the invention product using when usually put
Orientation or the orientation that usually understands of position relationship or those skilled in the art or position relationship, be for only for ease of and retouch
It states the present invention and simplifies description rather than instruction or imply that signified device or element must have specific orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " etc. are only used for
Description is distinguished, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally connect
It connects；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can above-mentioned term be understood with concrete condition
Concrete meaning in the present invention.
Embodiment one
It please refers to Fig.1 and Fig. 2, the present embodiment provides a kind of stiffening girder of suspension bridge installation system, suitable for stiff girder 200 is pacified
Loaded on king-tower 300.King-tower 300 includes tower body 301 and bottom end rail 302, and bottom end rail 302 is fixedly connected with tower body 301, king-tower
300 points are upstream king-post and downstream king-post, and main push-towing rope 303 is equipped between upstream king-post and downstream king-post.
The stiffening girder of suspension bridge installation system includes bearing 110, interim hoist cable 120, length adjustment device 140, hangs across cable
Machine 130 and hoist engine (not shown).
Bearing 110 is installed between the bottom end rail 302 of king-tower 300 and stiff girder 200, in the present embodiment, first to bearing 110
It is installed, after bearing 110 accurately installation, then stiff girder 200 is installed.Wherein, it is set on the bottom plate of stiff girder 200
There is bracket (not shown), bracket is slidably mounted on bearing 110, convenient for adjusting the installation site of stiff girder 200.
Deck erection gantry 130 is installed on the main push-towing rope 303 of king-tower 300, by being positioned on main push-towing rope 303, is put more energy into for lifting by crane
Beam 200 after stiff girder 200 is sling certain altitude, using the elevator machine travel stiff girder 200 being installed on access bridge bridge floor, makes
Stiff girder 200 is moved to the top of bearing 110, convenient for being installed to stiff girder 200.Utilize elevator machine travel stiff girder 200
Operation can be found in the prior art, in addition, the concrete structure of hoist engine also can be found in the prior art, in the present embodiment, no longer in detail
It states.
Deck erection gantry 130 is equipped with loop wheel machine walking foot 131, and main push-towing rope 303 is equipped with cord clip 304, and the lifting of deck erection gantry 130 is made
During industry in addition to loop wheel machine walking foot 131 is fastened with 303 anchor ear of main push-towing rope, to prevent loop wheel machine from sliding, loop wheel machine walking foot 131 must be against rope
Folder 304, that is to say loop wheel machine walking foot 131 need to hold out against cord clip 304, with resist 303 linear change of pitch angle of main push-towing rope cause loop wheel machine to across
Middle sliding component.Due to 303 linear variation of main push-towing rope, hoist cable 304 size difference of cord clip, lifted beam section with prepare lifting beam section
Between must assure that >=the influence of the factors such as 20cm safe distances when beam section is lifted by crane, loop wheel machine walking foot 131 is with preparing hoisting beam
The corresponding cord clip 304 of section, which cannot be fully met, holds out against requirement, therefore the special spacer pad for having designed and produced certain amount and length
132, to fill up gap or the size disparity between adjustment loop wheel machine walking foot 131 and cord clip 304, meet loop wheel machine positioning needs.
Referring to Fig. 3, stiff girder 200 includes being symmetrical arranged and the first beam section 201 being connected with each other and the in the present embodiment
Two beam sections 202 since stiff girder 200 divides for two-part, that is to say, when lifting stiff girder 200, need to lift the first beam section respectively
201 and second beam section 202, in the present embodiment, the hanging method between the first beam section 201 and the second beam section 202 is the same.Lower mask
Body describes the structure of the first beam section 201, and the second beam section 202 is identical, is no longer specifically described.
It please refers to Fig.1 and Fig. 3, the first beam section 201 is equipped with fixing end 203 and abutting end 204, fixing end 203 is used for and tower
The bottom connection of body 301, and abutting end 204 is used to connect by interim hoist cable 120 with the top of tower body 301 when mounted.Together
Reason, the second beam section 202 are also equipped with fixing end 203 and abutting end 204, and the connection mode of the second beam section 202 and the first beam
The connection mode of section 201 is identical, and details are not described herein, also, it will be readily appreciated that be the first beam section 201 abutting end 204 and the
The abutting end 204 of two beam sections 202 connects.
It please refers to Fig.1 and Fig. 2, after the first beam section 201 of stiff girder 200 is sling certain altitude by deck erection gantry 130, profit
With the first beam section of elevator machine travel 201, the top of bearing 110 is moved it to, connects the fixing end of the first beam section 201 at this time
203 and tower body 301, specifically, the fixing end 203 of the first beam section 201 is provided with the first ear mount 205, and tower body 301 is provided with second
Ear mount 305 is connected between first ear mount 205 and the second ear mount 305 by connector 206, and connector 206 herein connects for rigidity
Device is connect, after the first beam section 201 is fixed on tower body 301, one end of the separate tower body 301 of interim hoist cable 120 is connected to first
The abutting end 204 of beam section 201, to realize the support of interim hoist cable 120, tower body 301 and bearing 110 to the first beam section 201.
Length adjustment device 140 can be used cooperatively with various mechanism, such as be used cooperatively with rope, to adjust rope
Length；Or be used cooperatively with door-plate, to adjust the gap between two door-plates；It can also be elongated or shortened with other needs
Mechanism connects.
It please refers to Fig.1 and Fig. 4, in the present embodiment, length adjustment device 140 with interim hoist cable 120 is connect, utilizes length
Regulating device 140 realizes the adjusting of the length to interim hoist cable 120.In the present embodiment, the interim hoist cable 120 referred to is used to hang
And disperseing the gravity of stiff girder 200, one end of interim hoist cable 120 hangs on the top of the tower body 301 of king-tower 300, and the other end is used
In suspension stiff girder 200.
Referring to Fig. 5, length adjustment device 140 includes the first adjusting screw rod 141, the second adjusting screw rod 142 and adjusting set
Cylinder 143, regulating sleeve 143 is threadedly connected to the outside of the first adjusting screw rod 141 and the second adjusting screw rod 142.First adjusts spiral shell
The axial line of 141 and second adjusting screw rod 142 of bar is located along the same line, the first adjusting screw rod 141 and the second adjusting screw rod 142
It is arranged at intervals, that is to say, regulating sleeve 143 is sheathed on the junction of the first adjusting screw rod 141 and the second adjusting screw rod 142.The
One adjusting screw rod 141 and the second adjusting screw rod 142 can be connect with other mechanisms respectively, can by rotating regulating sleeve 143
Change the distance between the first adjusting screw rod 141 and the second adjusting screw rod 142, so as to fulfill to the whole of length adjustment device 140
The adjusting of body length.High-precision adjusting is realized, while regulative mode is simple by threaded adjusting, operation is easy.
Specifically, interim hoist cable 120 includes the first hoist cable section 121 and the second hoist cable section 122.The one of first hoist cable section 121
End is connect with the top of tower body 301, and the other end is connect with the first adjusting screw rod 141 of length adjustment device 140, and the second hoist cable
For connecting stiff girder 200, the other end is connect with the second adjusting screw rod 142 of length adjustment device 140 for one end of section 122, is led to
Length adjustment device 140 is overregulated, so as to adjust the distance between the first hoist cable section 121 and the second hoist cable section 122, is faced with changing
When hoist cable 120 length, for adjusting stiff girder 200.
Adjustable in length ± the 20cm of interim hoist cable 120, that is to say, adjustable length adjusts short each 20cm, and length adjusts direction and is
Regulating sleeve 143 is past to be rotated clockwise, and sunpender shortens, otherwise elongated.First adjusting screw rod 141 and the second adjusting screw rod
142 it is oppositely oriented, the first adjusting screw rod 141 can be left or right rotation, corresponding, the second adjusting screw rod 142 for dextrorotation or
Left-handed, in the present embodiment, the rotation direction of the first adjusting screw rod of dextrorotation 141 is dextrorotation, the rotation direction of the second adjusting screw rod 142 be it is left-handed,
When rotating regulating sleeve 143 clockwise, the first adjusting screw rod 141 and the second adjusting screw rod 142 are to adjusting set
Cylinder 143 in move, so as to reduce the distance between the first adjusting screw rod 141 and the second adjusting screw rod 142, conversely, when along
When rotating in an anti-clockwise direction regulating sleeve 143, the first adjusting screw rod 141 and the second adjusting screw rod 142 are outside regulating sleeve 143
It is mobile, so as to increase the distance between the first adjusting screw rod 141 and the second adjusting screw rod 142.
In addition, setting the first threaded hole 144 and the second threaded hole 145 respectively at the both ends of regulating sleeve 143, work as adjusting set
After the completion of cylinder 143 is adjusted, the first threaded hole 144 is passed through using connectors such as screw or bolts, pushes against regulating sleeve 143 and first
Adjusting screw rod 141 is to realize fixation to 143 and first adjusting screw rod 141 of regulating sleeve, likewise, passing through the using connector
Two threaded holes 145, and push against 143 and second adjusting screw rod 142 of regulating sleeve and spiral shell is adjusted to regulating sleeve 143 and second to realize
The fixation of bar 142.In the present embodiment, the first threaded hole 144 is two, and is set along the radial direction of regulating sleeve 143, similarly,
Second threaded hole 145 is also two, is set also along the radial direction of regulating sleeve 143, the first threaded hole 144 and the second threaded hole
145 be respectively two, and fixed effect is more preferable.
Referring to Fig. 6, in the present embodiment, interim hoist cable 120 uses Prefabricated parallel stranded metallic cable, outsourcing bilayer PE (black
Internal layer colour outer layer) formed protective layer 123 protected.Interim hoist cable 120 uses the zinc-plated high strength steel of a diameter of 5.2mm
Silk, steel wire normal intensity >=1670MPa, proof stress 1023MPa are 0.55 times of intensity of steel wire, and every interim hoist cable 120 contains 109
Root steel wire, PE overcoat thickness are 7mm.
In addition, in other embodiments, length can also be set between the first adjusting screw rod 141 and the first hoist cable section 121
Auxiliary adjustment mechanism (not shown) is spent, such as：Hydraulic cylinder or pneumatic cylinder etc..First adjusting screw rod 141 and the first hoist cable section 121 are logical
Hydraulic cylinder or pneumatic cylinder connection are crossed, hydraulic cylinder or pneumatic cylinder can elongate or shorten the first adjusting screw rod 141 and the first hoist cable section
The distance between 121, play the role of auxiliary adjustment to the distance between the first hoist cable section 121 and the second hoist cable section 122.Work as profit
After having adjusted the distance between the first hoist cable section 121 and the second hoist cable section 122 with length adjustment device 140, discovery still can not
When reaching target length, the first hoist cable section 121 and the second hoist cable section 122 can be adjusted again by adjusting hydraulic cylinder or pneumatic cylinder
The distance between.Or in the case where meeting target length, using hydraulic cylinder or the further degree of regulation of pneumatic cylinder, so as to reach
To higher precision.
Stiff girder 200 to be installed using stiffening girder of suspension bridge installation system provided in this embodiment, installation is easy, and
In installation process, setting angle and installation site can be adjusted stiff girder 200 by the variation of interim 120 length of hoist cable
Section, it is easy to operate.By the adjusting of length adjustment device 140, stiff girder 200 is made accurately to be installed on bearing 110, is installed
Cheng Hou without being adjusted again, due to the accurate installation, then accurately installed to stiff girder 200 in advance of bearing 110, removes from
After stiff girder 200 is installed in the prior art, then between stiff girder 200 and bottom end rail 302 erection support 110, caused by
The adjusting repeatedly of stiff girder 200 enormously simplifies the complexity of installation and adjusts difficulty.
Stiff girder 200 will be installed using the above-mentioned stiffening girder of suspension bridge installation system provided, that is to say below, this
Embodiment will provide a kind of stiffening girder of suspension bridge installation method, include the following steps：
S1：Bearing 110 is installed.
Referring to Fig. 1, the erection support 110 on the bottom end rail 302 of king-tower 300, the present embodiment is using first erection support
110, then the mode of stiff girder 200 is installed and is constructed, it being capable of more accurate erection support 110 and stiff girder 200.
S2：The installation of interim hoist cable 120.
Referring to Fig. 1, it when mounted, first in the 301 top pre-embedded steel slab of tower body of king-tower 300, then welds at the scene
Then one end of interim hoist cable 120 is connect by lifting lug 306 with upper lifting lug 306.
S3：Lift the first beam section 201.
Referring to Fig. 2, specifically, first positioning deck erection gantry 130 on main push-towing rope 303, and utilize deck erection gantry
130 sling the first beam section 201, when deck erection gantry 130 slings the first beam section 201, should be noted the loop wheel machine row of deck erection gantry 130
It walks foot 131 and pushes against cord clip 304.Secondly hoist engine is installed on access bridge bridge floor, and utilizes the first beam section of elevator machine travel 201.
S5：First beam section 201 is installed：
First beam section 201 is connected to tower body 301 and interim hoist cable 120, then using length adjustment device 140 to interim
The distance between first hoist cable section 121 and the second hoist cable section 122 of hoist cable 120 are adjusted, and reach the length of interim hoist cable 120
To after target length, the first beam section 201 is installed on bearing 110.
It please refers to Fig.1, Fig. 2, Fig. 3 and Fig. 4, specifically, first beam section 201 is sling into certain height using deck erection gantry 130
Degree, in order to avoid the first beam section 201 damages bearing 110, during lifting, the beam bottom of the first beam section 201 is slightly above the table of bearing 110
Face after reaching certain altitude, hoist engine is connected in the suspender ear mount of the first beam section 201 and carries out horizontally tracting, is moved it
To the top of bearing 110, specially draw to bearing 110 at a distance of the position of 20cm, then by the fixing end of the first beam section 201
203 connect with the tower body 301 of king-tower 300, and the interim one end of hoist cable 120 far from tower body 301 is connected to the first beam section 201
Abutting end 204, using length adjustment device 140 between the first hoist cable section 121 and the second hoist cable section 122 of interim hoist cable 120
Distance be adjusted, after the length of interim hoist cable 120 is made to reach target length, the first beam section 201 is accurately placed into bearing 110
On, then hoist engine detached.At this point, 201 bearing distribution of the first beam section is to vertical support 110, connector 206 and interim hoist cable
On 120, the installation of the first beam section 201 is completed at this time.
Further, in order to make 110 uniform force of bearing, the first beam section 201 lifts linear linear consistent with closure, reckoning
Before going out after suspension centre absolute altitude, a progress measurement and positioning of hanging oneself to interim hoist cable 120, then analysis meter is carried out to interim 120 length of hoist cable
It calculates.The single hoist cable value of thrust of Midas's modeling analysis informs that producer carries out pre- tensioning blanking with the value of thrust, wherein, adjust length
Degree regulating device 140 makes the length of interim hoist cable 120 be 24.661m, and the pulling force of single interim hoist cable 120 is 490.361KN.For
Closure section is enable smoothly to lift by crane, closure section toward tower side direction beam section integrally with hoist engine toward tower side-lining certain distance, the
One beam section 201 lifting when first carry out it is pre- partially, pre- deviator be 201 floor bracket off-centring bearing of the first beam section, 110 center
40cm (toward 301 center position of tower body).
S6：Second beam section 202 is installed and connects the first beam section 201 and the second beam section 202.
Second beam section 202 is identical with the mounting means of the first beam section 201, and details are not described herein, referring to Fig. 3, due to
One beam section, 201 horizontal-shift, the lifting of the second beam section 202 can not carry out the interim matching parts in building site after getting up with the first beam section 201 and connect
It connects, is computed, the first beam section 201 and the second beam section 202 can temporarily be connected by 4 10t chain blocks (not shown), hand
Cucurbit one end is drawn to be fixed at the interim matching parts hole (not shown) of 202 top plate of the second beam section, one end is fixed on 201 bottom of the first beam section
At the interim matching parts hole (not shown) of plate, after another second beam section 202 is sling again, second beam section 202 adjacent to two
The interim matching parts connection in building site is carried out, takes down chain block.Because of two adjacent 202 stable connections of the second beam section, hand is unclamped
After drawing cucurbit, interim hoist cable 120 does not take temporarily, waits after full-bridges close up, (is taken down at this time with the first beam section of elevator machine travel 201
Interim hoist cable 120), it is connected with and welds with corresponding second beam section 202.
In conclusion the present invention divides stiff girder 200 for the first beam section 201 and the second beam section 202, and pacified respectively
Dress, installation are more prone to, while the length of interim hoist cable 120 is carried out using the length adjustment device 140 on interim hoist cable 120
It adjusts, to adjust the setting angle of stiff girder 200 and installation site, adjusting is more convenient, in addition, provided in an embodiment of the present invention
The method that stiffening girder of suspension bridge 200 is installed, first accurately installs bearing 110, stiff girder 200 then is installed on bearing again
On 110, the installation of stiff girder 200 is avoided repeatedly to stiff girder 200 using the length adjustment device 140 of interim hoist cable 120
Installation site be adjusted, installation it is more accurate.
Embodiment two
Referring to Fig. 7, providing a kind of length adjustment device 240 in the present embodiment, the length adjustment device 240 is also with facing
When hoist cable 120 connect, for hanging and installing stiff girder 200.Length adjustment device 240 and embodiment one in the present embodiment
The structure of length adjustment device 140, connection mode and for essentially identical, difference of installing the installation method of stiff girder 200
It is, in the present embodiment, length adjustment device 240 further includes protection mechanism 245, in the present embodiment, unmentioned reference numeral
It can be found in embodiment one.
The protection mechanism 245 includes the first steel wire rope 246, the second steel wire rope 247 and third steel wire rope 248.
The both ends of first steel wire rope 246 are connect respectively with the first adjusting screw rod 141 and the second adjusting screw rod 142, and the
The length of one steel wire rope 246 is more than the length of regulating sleeve 143.Due to the first adjusting screw rod 141 and the second adjusting screw rod 142 it
Between there are gaps, the first adjusting screw rod 141, the second adjusting screw rod 142 and regulating sleeve 143 can form cavity, by by
One steel wire rope 246 is positioned in cavity, since 246 softness of the first steel wire rope is good, can occur to fold in cavity and curved
Song, and when the distance between the first adjusting screw rod 141 and the second adjusting screw rod 142 become larger, the first steel wire rope 246 can relax again
Exhibition.In addition, the first steel wire rope 246 can be born larger power, can effectively be prevented the first adjusting spiral shell due to its intensity height
141 and second adjusting screw rod 142 of bar under external force, when being detached with regulating sleeve 143, plays the work of a protection
With.
In addition, the both ends of the second steel wire rope 247 are connected to the outside of the first hoist cable section 121 and regulating sleeve 143；The
One hoist cable section 121 and 143 script of regulating sleeve are discrete states, by the first hoist cable section 121 and are adjusted by the second steel wire rope 247
Sleeve 143 connects, due to adjust between the first hoist cable section 121 and the second hoist cable section 122 apart from when, be to be adjusted by rotating
What sleeve 143 was realized, it that is to say, the distance between regulating sleeve 143 and the first hoist cable section 121 are changing, and pass through second
Steel wire rope 247 connects the first hoist cable section 121 and regulating sleeve 143, can to the first hoist cable section 121 and regulating sleeve 143 it
Between play protective action.The company of third steel wire rope 248 is connected to the outer of the second hoist cable section 122 and regulating sleeve 143
Side, third steel wire rope 248 is similar with the effect of the second steel wire rope 247, and details are not described herein.
Under normal circumstances, the first steel wire rope 246, the second steel wire rope 247 and third steel wire rope 248 are in the shape that do not stress
State, and when the first adjusting screw rod 141 and/or the second adjusting screw rod 142 under external force, when being detached from regulating sleeve 143 or
When abnormal displacement occurs for person, the first steel wire rope 246, the second steel wire rope 247 and third steel wire rope 248 can stress, and play
The effect of stiff girder 200 is hung, plays the role of secondary protection to the installation of stiff girder 200.
Specifically, by this present embodiment, the first steel wire rope 246 is installed on the first adjusting screw rod 141 and second and adjusts spiral shell
Between bar 142, and the length of the first steel wire rope 246 is less than the length of regulating sleeve 143, that is to say, the first steel wire rope 246
Setting, can effectively prevent the first adjusting screw rod 141 and the second adjusting screw rod 142 to be detached from regulating sleeve 143, this
When, the second steel wire rope 247 and third steel wire rope 248 are still within the state of not stressing, and when the first steel wire rope 246 still can not be held
By stiff girder 200 gravity when, the first steel wire rope 246 is broken, and the first adjusting screw rod 141 and/or the second adjusting screw rod 142 are with adjusting
Section sleeve 143 detaches, and the second steel wire rope 247 and/or third steel wire rope 248 are in stress at this time, further pair adds
Protective action is played in the installation of strength beam 200.
In the present embodiment, the load-bearing of interim hoist cable 120 is much larger than the gravity of stiff girder 200, by setting the first steel wire rope
First time protective action is played in the installation of 246 pairs of stiff girders 200, and the second steel wire rope 247 and third steel wire rope 248 are to stiff girder
Second of protective action is played in 200 installation, makes stiff girder 200 in installation process, safety higher, and bearing capacity is strengthened.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of stiffening girder of suspension bridge installation system, suitable for stiff girder is installed on king-tower, which is characterized in that it includes installation
Bearing in the bottom end rail of the king-tower, be installed on the king-tower main push-towing rope deck erection gantry, be installed on the elevator of access bridge bridge floor
Machine, interim hoist cable and length adjustment device, the length adjustment device include the first adjusting screw rod, the second adjusting screw rod and tune
Sleeve is saved, the regulating sleeve is threadedly connected to the outside of first adjusting screw rod and second adjusting screw rod, and described the
The threaded line direction of one adjusting screw rod and second adjusting screw rod is opposite；First adjusting screw rod and described second adjusts spiral shell
The axial line of bar is located along the same line；The stiff girder include be connected with each other the first beam section and the second beam section, described first
The one end of beam section far from second beam section is connect with the bottom of the tower body of the king-tower, and the interim hoist cable includes the first hoist cable
Section and the second hoist cable section, first adjusting screw rod connect with the first hoist cable section, second adjusting screw rod and described the
Two hoist cable sections connect, and the one end of the first hoist cable section far from the length adjustment device is connect with the top of the tower body, institute
The one end of the second hoist cable section far from the length adjustment device is stated with first beam section close to one end of second beam section to connect
It connects.
2. stiffening girder of suspension bridge installation system according to claim 1, which is characterized in that one end of the regulating sleeve is set
The first threaded hole for regulating sleeve described in locking and first adjusting screw rod is equipped with, the other end of the regulating sleeve is set
It is equipped with the second threaded hole for regulating sleeve described in locking and second adjusting screw rod.
3. stiffening girder of suspension bridge installation system according to claim 1, which is characterized in that first adjusting screw rod and institute
It states and the first steel wire rope is connected between the second adjusting screw rod, the length of first steel wire rope is more than the length of the regulating sleeve
Degree.
4. stiffening girder of suspension bridge installation system according to claim 3, which is characterized in that the first hoist cable section and described
The outside of regulating sleeve is connected by the second steel wire rope, and the outside of the second hoist cable section and the regulating sleeve passes through third steel
Cord connects.
5. stiffening girder of suspension bridge installation system according to claim 1, which is characterized in that first adjusting screw rod and institute
It states and is connected by hydraulic cylinder or pneumatic cylinder between the first hoist cable section.
6. stiffening girder of suspension bridge installation system according to claim 1, which is characterized in that the main push-towing rope is equipped with cord clip,
The deck erection gantry is equipped with, against the loop wheel machine of cord clip walking foot, to set between the loop wheel machine walking foot and the cord clip
It is useful for filling up the spacer pad in gap between the loop wheel machine walking foot and the cord clip.
7. stiffening girder of suspension bridge installation system according to claim 1, which is characterized in that set on the bottom plate of the stiff girder
There is bracket, the bracket is slidably mounted on the bearing.
8. a kind of stiffening girder of suspension bridge installation method, which is characterized in that it uses stiffening girder of suspension bridge as described in claim 1
Installation system is installed, and the stiff girder includes the first beam section and the second beam section, including：First in the lower horizontal stroke of the king-tower
The bearing is installed on beam；And the interim hoist cable is installed at the top of the tower body in the king-tower；Secondly lifting first beam
The both ends of first beam section are simultaneously respectively connected to the tower body and the interim hoist cable by section, then utilize the length adjustment
The distance between the first hoist cable section of the interim hoist cable and described second hoist cable section is adjusted in device, makes described face
When hoist cable length reach target length after, first beam section is installed on the bearing.
9. stiffening girder of suspension bridge installation method according to claim 8, which is characterized in that installation second beam section, so
One end of chain block is connected to the bottom plate of first beam section afterwards, the other end of the chain block is connected to described second
The top plate of beam section after another piece of the second beam section is sling again, after connecting two the second adjacent beam sections, takes down and described pulls calabash
Reed after full-bridge closes up, is connected using the first beam section described in the elevator machine travel with corresponding second beam section, wherein,
When using the first beam section described in the elevator machine travel, the interim hoist cable is taken down.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610900599.3A CN106544957B (en) | 2016-10-14 | 2016-10-14 | Length adjustment device, stiffening girder of suspension bridge mounting system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610900599.3A CN106544957B (en) | 2016-10-14 | 2016-10-14 | Length adjustment device, stiffening girder of suspension bridge mounting system and method |
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| CN106544957A CN106544957A (en) | 2017-03-29 |
| CN106544957B true CN106544957B (en) | 2018-06-19 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106939556B (en) * | 2017-05-05 | 2019-01-18 | 贵州大学 | A kind of arch bridge cable-hoisting construction stayed knotting method knotted rope tensioning equipment |
| CN110565535B (en) * | 2019-09-29 | 2021-01-26 | 中铁大桥局集团有限公司 | Suspension bridge space main cable linear adjusting device and adjusting method |
| CN112458904A (en) * | 2020-11-06 | 2021-03-09 | 中国铁建港航局集团有限公司 | End beam suspension device |
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| CN101225638A (en) * | 2007-12-20 | 2008-07-23 | 中铁大桥局股份有限公司 | Method for mounting ground anchor type suspension bridge prestressed concrete stiffening box girder |
| CN201530682U (en) * | 2009-07-16 | 2010-07-21 | 浙江省舟山连岛建设工程指挥部 | Hoisting device suitable for hoisting steel box girder |
| CN204919335U (en) * | 2015-07-14 | 2015-12-30 | 柳州欧维姆机械股份有限公司 | Cable is decorated to super -elasticity |
| KR20160049287A (en) * | 2014-10-27 | 2016-05-09 | 휴먼이엔씨주식회사 | Hanger, sidewalk for a bridge using hanger and construction method thereof, footbridge for landscape using hanger and construction method thereof |
| CN205369054U (en) * | 2016-01-15 | 2016-07-06 | 长安大学 | Suspension bridge stiffening beam erects construction structures |
| CN206308620U (en) * | 2016-10-14 | 2017-07-07 | 中交第一公路工程局有限公司 | Length adjustment device and stiffening girder of suspension bridge installation system |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225638A (en) * | 2007-12-20 | 2008-07-23 | 中铁大桥局股份有限公司 | Method for mounting ground anchor type suspension bridge prestressed concrete stiffening box girder |
| CN201530682U (en) * | 2009-07-16 | 2010-07-21 | 浙江省舟山连岛建设工程指挥部 | Hoisting device suitable for hoisting steel box girder |
| KR20160049287A (en) * | 2014-10-27 | 2016-05-09 | 휴먼이엔씨주식회사 | Hanger, sidewalk for a bridge using hanger and construction method thereof, footbridge for landscape using hanger and construction method thereof |
| CN204919335U (en) * | 2015-07-14 | 2015-12-30 | 柳州欧维姆机械股份有限公司 | Cable is decorated to super -elasticity |
| CN205369054U (en) * | 2016-01-15 | 2016-07-06 | 长安大学 | Suspension bridge stiffening beam erects construction structures |
| CN206308620U (en) * | 2016-10-14 | 2017-07-07 | 中交第一公路工程局有限公司 | Length adjustment device and stiffening girder of suspension bridge installation system |
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| CN106544957A (en) | 2017-03-29 |
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Inventor after: Qu Jialin Inventor after: Li Wen Inventor after: Li Hongsheng Inventor after: Jing Zhenshuai Inventor after: Rong Wei Inventor after: Yang Shihao Inventor after: Mao Chaojun Inventor before: Ren Wei Inventor before: Li Wen Inventor before: Mao Chaojun Inventor before: Li Hongsheng Inventor before: Bin bear Inventor before: Yang Shihao Inventor before: Qu Jialin |
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Address after: 100020 Zhou Jiajing, Guanzhuang, Chaoyang District, Beijing Patentee after: CHINA FIRST HIGHWAY ENGINEERING Co.,Ltd. Address before: 100020 Zhou Jiajing, Guanzhuang, Chaoyang District, Beijing Patentee before: CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. |
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