CN206308620U - Length adjustment device and stiffening girder of suspension bridge installation system - Google Patents
Length adjustment device and stiffening girder of suspension bridge installation system Download PDFInfo
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- CN206308620U CN206308620U CN201621126141.9U CN201621126141U CN206308620U CN 206308620 U CN206308620 U CN 206308620U CN 201621126141 U CN201621126141 U CN 201621126141U CN 206308620 U CN206308620 U CN 206308620U
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- 238000009434 installation Methods 0.000 title claims abstract description 55
- 239000000725 suspension Substances 0.000 title claims abstract description 38
- 230000001105 regulatory effect Effects 0.000 claims abstract description 48
- 229910000831 Steel Inorganic materials 0.000 claims description 49
- 239000010959 steel Substances 0.000 claims description 49
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 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
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model provides a kind of length adjustment device and stiffening girder of suspension bridge installation system, it is related to technical field of bridge construction, the device includes the regulating sleeve in threaded line the first adjusting screw rod in opposite direction and the second adjusting screw rod and the outside for being threadedly connected to 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 two ends, first hoist cable section one end is connected with the top of tower body, and the second hoist cable section one end is connected with the first beam section.The installation system is adjusted using length adjustment device to the length of interim hoist cable, and to adjust the setting angle and installation site of stiff girder, regulation more facilitates.
Description
Technical field
The utility model is related to technical field of bridge construction, in particular to a kind of length adjustment device and suspension bridge
Stiff girder installation system.
Background technology
Suspension bridge is also known as suspension bridge, and the cable for referring to be hung by Sarasota and being anchored in two sides is main as superstructure
Weigh the bridge of component.For in avoiding vehicle travel process, bridge floor deforms together with suspension cable, and modern suspension is typically 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 treats stiff girder installation mainly using generally stiff girder is first installed
Afterwards, the then erection support between stiff girder and the sill of tower body, in the prior art after stiff girder installation, stiff girder
Setting angle and installation site are difficult regulation, and are easily caused by the way of rear erection support and adjust repeatedly stiff girder, so that
Influence the installation accuracy of stiff girder.
Utility model content
The purpose of this utility model is to provide a kind of length adjustment device, its length that can adjust two ends, so as to rise
To the effect of accurate adjustment.
The purpose of this utility model is to provide a kind of stiffening girder of suspension bridge installation system, and it can be to stiffening girder of suspension bridge
Installed, and can constantly regulate, to ensure installation accuracy, while being easily installed.
What embodiment of the present utility model was realized in：
A kind of length adjustment device, it includes 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.
Further, one end of regulating sleeve is provided with the first screw thread for locking regulating sleeve and the first adjusting screw rod
Hole, the other end of regulating sleeve is provided with the second screwed hole for locking regulating sleeve and the second adjusting screw rod.
A kind of stiffening girder of suspension bridge installation system, is suitable to be installed on stiff girder on king-tower, and it includes being installed on king-tower
The bearing of sill, be installed on the deck erection gantry of the main push-towing rope of king-tower, be installed on the hoist engine of 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 away from the second beam section
One end is connected with the bottom of the tower body of king-tower, 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 connection, the second adjusting screw rod is connected with the second hoist cable section, the one end of the first hoist cable section away from length adjustment device
It is connected with the top of tower body, the second hoist cable section is close to one end of the second beam section away from one end of length adjustment device with the first beam section
Connection.
Further, the first steel wire rope is connected between the first adjusting screw rod and the second adjusting screw rod, the first steel wire rope
Length of the length more than regulating sleeve.
Further, the outside of the first hoist cable section and regulating sleeve is by the connection of the second steel wire rope, the second hoist cable section and tune
The outside for saving sleeve is connected by the 3rd steel wire rope.
Further, connected by hydraulic cylinder or pneumatic cylinder between the first adjusting screw rod and the first hoist cable section.
Further, the outside of the first hoist cable section and the second hoist cable section is provided with overcoat, and overcoat is double-decker.
Further, the base plate of stiff girder is provided with bracket, and bracket is slidably mounted on bearing.
Further, the first beam section is provided with the first ear mount away from one end of the second beam section, and tower body is provided with the second ear mount,
Connected by connector between first ear mount and the second ear mount.
Further, main push-towing rope is provided with cord clip, and deck erection gantry is provided with for the loop wheel machine walking pin against cord clip, loop wheel machine row
Walk the spacer pad being provided between pin and cord clip for filling up gap between loop wheel machine walking pin and cord clip.
The beneficial effect of the utility model embodiment is：Change the first adjusting screw rod and second by rotating regulating sleeve
The distance between adjusting screw rod, so as to realize changing the length of whole length adjusting means, the first adjusting screw rod and second are adjusted
The rotary orientation of screw rod is opposite, it is possible to achieve when regulating sleeve is rotated, the first adjusting screw rod and the second adjusting screw rod are same
When outwardly or inwardly moved relative to regulating sleeve.Using threaded adjusting, precision is higher, while regulation is more convenient.Meanwhile, this reality
Stiff girder is divided into the first beam section and the second beam section by the stiffening girder of suspension bridge installation system provided with new embodiment, and is entered respectively
Row is installed, and installation is more prone to, while interim hoist cable is connected with length adjustment device, using length adjustment device to hanging temporarily
The length of rope is adjusted, and to adjust the setting angle and installation site of stiff girder, regulation more facilitates, and is filled by length adjustment
The regulation put, makes stiff girder accurately be installed on bearing, after installation, without being adjusted again, because bearing is advance
It is accurate to install, then stiff girder is accurately installed, after eliminating stiff girder installation in the prior art, then in stiff girder and lower horizontal stroke
Erection support between beam, caused by stiff girder regulation repeatedly, enormously simplify installation complexity and regulation difficulty.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, below will be to be used needed for embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
Other related accompanying drawings are obtained with according to these accompanying drawings.
Fig. 1 is the structure that the stiffening girder of suspension bridge installation system that the utility model embodiment one is provided is used to install stiff girder
Schematic diagram；
Fig. 2 is the deck erection gantry and stiff girder of the stiffening girder of suspension bridge installation system that the utility model embodiment one is provided
Cooperation schematic diagram；
Fig. 3 is first beam section and the second beam section of the stiffening girder of suspension bridge installation system that the utility model embodiment one is provided
Connection diagram；
Fig. 4 is the structural representation of the interim hoist cable of the stiffening girder of suspension bridge installation system that the utility model embodiment one is provided
Figure；
Fig. 5 is the structure of the length adjustment device of the stiffening girder of suspension bridge installation system that the utility model embodiment one is provided
Schematic diagram；
Fig. 6 is the sectional view of the interim hoist cable of the stiffening girder of suspension bridge installation system that the utility model embodiment one is provided；
Fig. 7 is the structure of the length adjustment device of the stiffening girder of suspension bridge installation system that the utility model embodiment two is provided
Schematic diagram.
Icon：110- bearings；The interim hoist cables of 120-；The hoist cables of 121- first section；The hoist cables of 122- second section；123- overcoats；
130- deck erection gantries；131- loop wheel machines walking pin；132- spacer pads；140- length adjustment devices；The adjusting screw rods of 141- first；
The adjusting screw rods of 142- second；143- regulating sleeves；The screwed holes of 144- first；The screwed holes of 145- second；240- length adjustment devices；
245- protection mechanisms；The steel wire ropes of 246- first；The steel wire ropes of 247- second；The steel wire ropes of 248- the 3rd；200- stiff girders；201-
One beam section；The beam sections of 202- second；203- fixing ends；204- abutting ends；The ear mounts of 205- first；206- connectors；300- king-towers；
301- tower bodies；302- sills；303- main push-towing ropes；304- cord clips；The ear mounts of 305- second；The upper hangers of 306-.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally described in accompanying drawing herein and
The component of the utility model embodiment for showing can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.
, it is necessary to explanation in description of the present utility model, term " on ", D score, "left", "right", " interior ", " outward " etc.
The orientation or position relationship of instruction are that, based on orientation shown in the drawings or position relationship, or the utility model product is when using
The usual orientation put or position relationship, or the orientation that usually understands of those skilled in the art or position relationship, be only for
Be easy to description the utility model and simplify describe, rather than indicate imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.Additionally, term " first ",
" second " etc. is only used for distinguishing description, and it is not intended that indicating or implying relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets
Put ", " installation ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Embodiment one
Fig. 1 and Fig. 2 is referred to, the present embodiment provides a kind of stiffening girder of suspension bridge installation system, is suitable to pacify stiff girder 200
Loaded on king-tower 300.King-tower 300 includes tower body 301 and sill 302, and sill 302 is fixedly connected with tower body 301, king-tower
300 points is upstream king-post and downstream king-post, and main push-towing rope 303 is provided 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, is hung across cable
Machine 130 and hoist engine (not shown).
Bearing 110 is installed between the sill 302 of king-tower 300 and stiff girder 200, in the present embodiment, first to bearing 110
Installed, after bearing 110 is accurately installed, then stiff girder 200 is installed.Wherein, set on the base plate of stiff girder 200
There is bracket (not shown), bracket is slidably mounted on bearing 110, be easy to adjust the installation site of stiff girder 200.
Deck erection gantry 130 is installed on the main push-towing rope 303 of king-tower 300, is positioned by main push-towing rope 303, is put more energy into for lifting by crane
Beam 200, stiff girder 200 is sling after 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, is easy to install stiff girder 200.Using elevator machine travel stiff girder 200
Operation can be found in prior art, additionally, the concrete structure of hoist engine also can be found in prior art, in the present embodiment, no longer in detail
State.
Deck erection gantry 130 is provided with loop wheel machine walking pin 131, and main push-towing rope 303 is provided with cord clip 304, and the lifting of deck erection gantry 130 is made
During industry in addition to loop wheel machine walking pin 131 is fastened with the anchor ear of main push-towing rope 303, to prevent loop wheel machine from sliding, loop wheel machine walking pin 131 must be against rope
Folder 304, that is to say loop wheel machine walking pin 131 need to hold out against cord clip 304, with resist the linear change of pitch angle of main push-towing rope 303 cause loop wheel machine to across
Middle sliding component.Due to the linear change of main push-towing rope 303, the size difference of cord clip 304 of hoist cable, beam section is lifted and has prepared to lift beam section
Between must assure that >=the influence of the factor such as 20cm safe distances when beam section is lifted by crane, loop wheel machine walking pin 131 with prepare hoisting beam
Section correspondence cord clip 304 can not fully meet and hold out against requirement, therefore the special spacer pad for having designed and produced certain amount and length
132, it is used to gap or the size disparity filled up between adjustment loop wheel machine walking pin 131 and cord clip 304, meet loop wheel machine positioning needs.
Fig. 3 is referred to, stiff girder 200 includes the first beam section 201 for being symmetrical arranged and being connected with each other and the in the present embodiment
Two beam sections 202, due to stiff girder, 200 points is two-part, be that is to say, when stiff girder 200 is lifted, need to respectively lift the first beam section
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.
Fig. 1 and Fig. 3 is referred to, the first beam section 201 is provided with fixing end 203 and abutting end 204, and fixing end 203 is used for and tower
The bottom connection of body 301, and abutting end 204 is used to be connected by interim hoist cable 120 with the top of tower body 301 when mounted.Together
Reason, the second beam section 202 is also equipped with fixing end 203 and abutting end 204, and the second beam section 202 connected mode and the first beam
The connected mode of section 201 is identical, will not be repeated here, 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 is connected.
Fig. 1 and Fig. 2 is referred to, after deck erection gantry 130 to be sling certain altitude by the first beam section 201 of stiff girder 200, profit
With the first beam section of elevator machine travel 201, the top of bearing 110 is moved it to, now connect the fixing end of the first beam section 201
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 the first ear mount 205 and the second ear mount 305 by connector 206, and connector 206 herein connects for rigid
Device is connect, after the first beam section 201 is fixed on tower body 301, one end away from tower body 301 of interim hoist cable 120 first is connected to
The abutting end 204 of beam section 201, to realize interim hoist cable 120, the 110 pairs of supports of the first beam section 201 of tower body 301 and bearing.
Length adjustment device 140 can be used cooperatively with various mechanism, for example, used cooperatively with rope, to adjust rope
Length；Or used cooperatively with door-plate, to adjust the gap between two door-plates；Can also be elongated or shortened with other needs
Mechanism connects.
Fig. 1 and Fig. 4 is referred to, in the present embodiment, length adjustment device 140 is connected with interim hoist cable 120, using length
Adjusting means 140 realizes the regulation of the length to interim hoist cable 120.In the present embodiment, the interim hoist cable 120 for referring 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.
Fig. 5 is referred to, 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 regulation spiral shell
The axial line of the adjusting screw rod 142 of bar 141 and second is located along the same line, the first adjusting screw rod 141 and the second adjusting screw rod 142
Interval setting, 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 connected with other mechanisms respectively, by rotating regulating sleeve 143, can
Change the distance between the first adjusting screw rod 141 and the second adjusting screw rod 142, so as to realize to the whole of length adjustment device 140
The regulation of body length.High-precision regulation is realized by threaded adjusting, while regulative mode is simple, 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 connected with the top of tower body 301, and the other end is connected with the first adjusting screw rod 141 of length adjustment device 140, and the second hoist cable
One end of section 122 is used to connect stiff girder 200, and the other end is connected with the second adjusting screw rod 142 of length adjustment device 140, leads to
Length adjustment device 140 is overregulated, so as to adjust the first hoist cable section 121 and the second hoist cable section the distance between 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, the short each 20cm of tune, and length regulation direction is
Regulating sleeve 143 is past to be rotated clockwise, and suspension rod 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-handed or dextrorotation, corresponding, the second adjusting screw rod 142 be 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 regulating sleeve 143 is rotated 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 to regulating sleeve 143 outside
It is mobile, so as to increased the distance between the first adjusting screw rod 141 and the second adjusting screw rod 142.
Additionally, being respectively provided with the first screwed hole 144 and the second screwed hole 145 at the two ends of regulating sleeve 143, work as adjusting set
After the completion of the regulation of cylinder 143, the first screwed hole 144 is passed through using connectors such as screw or bolts, push against regulating sleeve 143 and first
Adjusting screw rod 141 to realize the fixation to the adjusting screw rod 141 of regulating sleeve 143 and first, likewise, using connector through the
Two screwed holes 145, and the adjusting screw rod 142 of regulating sleeve 143 and second is pushed against to realize adjusting spiral shell to regulating sleeve 143 and second
The fixation of bar 142.In the present embodiment, the first screwed hole 144 is two, and being radially arranged along regulating sleeve 143, similarly,
Second screwed hole 145 is also two, also along being radially arranged for regulating sleeve 143, the first screwed hole 144 and the second screwed hole
145 are respectively two, and fixed effect is more preferable.
Fig. 6 is referred to, in the present embodiment, interim hoist cable 120 uses Prefabricated parallel stranded metallic cable, outsourcing bilayer PE (black
Internal layer colour outer layer) formed overcoat 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 is 0.55 times of intensity of steel wire, and every interim hoist cable 120 contains 109
Root steel wire, PE overcoat thickness is 7mm.
Additionally, in other embodiments, length can also be set between the first adjusting screw rod 141 and the first hoist cable section 121
Degree auxiliary adjustment mechanism (not shown), for example：Hydraulic cylinder or pneumatic cylinder etc..First adjusting screw rod 141 and the first hoist cable section 121 are led to
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, auxiliary adjustment is played a part of to the first hoist cable section 121 and the second hoist cable section the distance between 122.Work as profit
After having adjusted the first hoist cable section 121 and the second hoist cable section the distance between 122 with length adjustment device 140, discovery still cannot
When reaching target length, the first hoist cable section 121 and the second hoist cable section 122 can be again adjusted by adjusting hydraulic cylinder or pneumatic cylinder
The distance between.Or in the case where target length is met, using hydraulic cylinder or the further degree of regulation of pneumatic cylinder, so as to reach
To precision higher.
The stiffening girder of suspension bridge installation system provided using the present embodiment is installed to stiff girder 200, installs easy, and
In installation process, its setting angle and installation site can be adjusted stiff girder 200 by the change of the length of interim hoist cable 120
Section, it is simple to operate.By the regulation of length adjustment device 140, stiff girder 200 is accurately installed on bearing 110, install
Cheng Hou, without being adjusted again, is installed because bearing 110 is accurate in advance, then stiff girder 200 is accurately installed, and is removed from
After stiff girder 200 is installed in the prior art, then between stiff girder 200 and sill 302 erection support 110, caused by
The regulation repeatedly of stiff girder 200, enormously simplify the complexity and regulation difficulty of installation.
Stiff girder 200 will be installed using the stiffening girder of suspension bridge installation system of above-mentioned offer below, that is to say, this
Embodiment will provide a kind of stiffening girder of suspension bridge installation method, and it is comprised the following steps：
S1：Bearing 110 is installed.
Fig. 1 is referred to, the erection support 110 on the sill 302 of king-tower 300, the present embodiment is using first erection support
110, then the mode of stiff girder 200 is installed is constructed, being capable of more accurate erection support 110 and stiff girder 200.
S2：The installation of interim hoist cable 120.
Fig. 1 is referred to, when mounted, first in the top pre-embedded steel slab of tower body 301 of king-tower 300, then at the scene in welding
, then with upper hanger 306 be connected for one end of interim hoist cable 120 by hanger 306.
S3：Lift the first beam section 201.
Fig. 2 is referred to, specifically, deck erection gantry 130 is positioned on main push-towing rope 303 first, 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
Walk pin 131 and push against cord clip 304.Secondly hoist engine is installed on access bridge bridge floor, and using 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, it is then interim using length adjustment device 140 pairs
The first hoist cable section 121 and the second hoist cable section the distance between 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.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are referred to, specifically, first beam section 201 is sling using deck erection gantry 130 certain high
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 carries out horizontally tracting, moves 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 are connected with the tower body 301 of king-tower 300, and interim hoist cable 120 is connected into the first beam section 201 away from one end of tower body 301
Abutting end 204, using between the first hoist cable section 121 and the second hoist cable section 122 of 140 pairs of interim hoist cables 120 of length adjustment device
Distance be adjusted, after the length of interim hoist cable 120 is reached target length, the first beam section 201 is accurately placed into bearing 110
On, then hoist engine is separated.Now, the bearing distribution of the first beam section 201 is to vertical support 110, connector 206 and interim hoist cable
On 120, the installation of the first beam section 201 is now completed.
Further, in order that the uniform force of bearing 110, the first beam section 201 lift it is linear with join the two sections of a bridge, etc linear consistent, reckoning
After going out preceding suspension centre absolute altitude, interim hoist cable 120 is hung oneself a little carries out measurement and positioning, then is analyzed meter to the length of interim hoist cable 120
Calculate.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, regulation length
Degree adjusting means 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 smoothly lifted by crane, closure section toward tower side to 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 the center of 201 floor bracket off-centring bearing of the first beam section 110
40cm (toward the center position of tower body 301).
S6：Second beam section 202 is installed and the first beam section 201 and the second beam section 202 is connected.
Second beam section 202 is identical with the mounting means of the first beam section 201, will not be repeated here, and refers to Fig. 3, due to
The horizontal-shift of one beam section 201, the lifting of the second beam section 202 cannot carry out the interim matching parts in building site and connect after getting up with the first beam section 201
Connect, be 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 the top board of the second beam section 202, one end is fixed on the bottom of the first beam section 201
At the interim matching parts hole (not shown) of plate, after after another second beam section 202 of slinging again, second beam section 202 adjacent to two
The interim matching parts connection in building site is carried out, chain block is taken down.Because two adjacent stable connections of the second beam section 202, hand is unclamped
After drawing cucurbit, interim hoist cable 120 does not take temporarily, after waiting full-bridge to close up, (is now taken down 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 sum, 200 points of stiff girder is the first beam section 201 and the second beam section 202 by the utility model, and is carried out respectively
Install, installation is more prone to, while being entered using the length of the interim hoist cable 120 of length adjustment device 140 pairs on interim hoist cable 120
Row regulation, to adjust the setting angle and installation site of stiff girder 200, regulation more facilitates, additionally, the utility model embodiment
The method that the stiffening girder of suspension bridge 200 of offer is installed, is first accurately installed to bearing 110, then again installs stiff girder 200
In on bearing 110, the installation using the length adjustment device 140 of interim hoist cable 120 to stiff girder 200 is avoided repeatedly to putting more energy into
The installation site of beam 200 is adjusted, and installs more accurate.
Embodiment two
Refer to Fig. 7, in the present embodiment provide a kind of length adjustment device 240, the length adjustment device 240 also with face
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, connected mode and for essentially identical, difference of installing the installation method of stiff girder 200
It is that in the present embodiment, length adjustment device 240 also includes protection mechanism 245, in the present embodiment, NM reference
Reference can be made to embodiment one.
The protection mechanism 245 includes the first steel wire rope 246, the second steel wire rope 247 and the 3rd steel wire rope 248.
The two ends of the first steel wire rope 246 are connected with the first adjusting screw rod 141 and the second adjusting screw rod 142 respectively, and the
Length of the length of one steel wire rope 246 more than regulating sleeve 143.Due to the first adjusting screw rod 141 and the second adjusting screw rod 142 it
Between there is gap, 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, because the softness of the first steel wire rope 246 is good, can occur to fold and curved in cavity
Song, and when the distance between the first adjusting screw rod 141 and the second adjusting screw rod 142 become big, the first steel wire rope 246 can relax again
Exhibition.Additionally, the first steel wire rope 246 is high due to its intensity, larger power can be born, it can effectively prevent the first regulation spiral shell
The adjusting screw rod 142 of bar 141 and second under external force, when being separated with regulating sleeve 143, plays a work for protection
With.
Additionally, the two 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 the script of regulating sleeve 143 are released states, by the way that the second steel wire rope 247 is by the first hoist cable section 121 and adjusts
Sleeve 143 is connected, due to adjust the first hoist cable section 121 and second hoist cable section 122 between apart from when, be by rotate adjust
What sleeve 143 was realized, that is to say, regulating sleeve 143 is changing with the first hoist cable section the distance between 121, by second
Steel wire rope 247 by the first hoist cable section 121 and regulating sleeve 143 connect, can to the first hoist cable section 121 and regulating sleeve 143 it
Between play protective action.The company of the 3rd steel wire rope 248 is connected to the outer of the second hoist cable section 122 and regulating sleeve 143
Side, the 3rd steel wire rope 248 is similar with the effect of the second steel wire rope 247, will not be repeated here.
Under normal circumstances, the first steel wire rope 246, the second steel wire rope 247 and the 3rd steel wire rope 248 are in the shape that do not stress
State, and work as the first adjusting screw rod 141 and/or the second adjusting screw rod 142 under external force, when departing from regulating sleeve 143, or
When there is abnormal displacement in person, the first steel wire rope 246, the second steel wire rope 247 and the 3rd steel wire rope 248 can stress, and play
The effect of stiff girder 200 is hung, secondary protection is played a part of in the installation to stiff girder 200.
Specifically, in due to the present embodiment, the first steel wire rope 246 is installed on the first adjusting screw rod 141 and the second regulation spiral shell
Between bar 142, and the first steel wire rope 246 length less than regulating sleeve 143 length, that is to say, the first steel wire rope 246
Set, can effectively prevent the first adjusting screw rod 141 and the second adjusting screw rod 142 from departing from regulating sleeve 143, this
When, the second steel wire rope 247 and the 3rd steel wire rope 248 are still within the state of not stressing, and when the first steel wire rope 246 still cannot hold
By stiff girder 200 gravity when, the first steel wire rope 246 is broken, the first adjusting screw rod 141 and/or the second adjusting screw rod 142 with adjust
Section sleeve 143 is separated, and now the second steel wire rope 247 and/or the 3rd steel wire rope 248 are in stress, further pair is added
Protective action is played in the installation of strength beam 200.
In the present embodiment, the gravity of the load-bearing much larger than stiff girder 200 of interim hoist cable 120, 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 the 3rd steel wire rope 248 are to stiff girder
Second protective action is played in 200 installation, makes stiff girder 200 in installation process, and security is higher, and bearing capacity is strengthened.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of length adjustment device, it is characterised in that it includes the first adjusting screw rod, the second adjusting screw rod and regulating sleeve,
The regulating sleeve is threadedly connected to the outside of first adjusting screw rod and second adjusting screw rod, the first regulation spiral shell
The threaded line of bar and second adjusting screw rod is in opposite direction.
2. length adjustment device according to claim 1, it is characterised in that one end of the regulating sleeve be provided with for
First screwed hole of regulating sleeve described in locking and first adjusting screw rod, the other end of the regulating sleeve be provided with for
Second screwed hole of regulating sleeve described in locking and second adjusting screw rod.
3. a kind of stiffening girder of suspension bridge installation system, is suitable to be installed on stiff girder on king-tower, it is characterised in that it includes installing
Bearing in the sill 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 as claimed in claim 1, the stiff girder include the first beam section being connected with each other
With the second beam section, first beam section is connected away from one end of second beam section with the bottom of the tower body of the king-tower, described
Interim hoist cable includes the first hoist cable section and the second hoist cable section, and first adjusting screw rod is connected with first hoist cable section, described
Second adjusting screw rod is connected with second hoist cable section, the one end and institute of the first hoist cable section away from the length adjustment device
The top connection of tower body is stated, the second hoist cable section is close to institute away from one end of the length adjustment device with first beam section
State one end connection of the second beam section.
4. stiffening girder of suspension bridge installation system according to claim 3, it is characterised in that first adjusting screw rod and institute
State and be connected between the second adjusting screw rod the first steel wire rope, the length of the length more than the regulating sleeve of first steel wire rope
Degree.
5. stiffening girder of suspension bridge installation system according to claim 4, it is characterised 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 the 3rd steel
Cord is connected.
6. stiffening girder of suspension bridge installation system according to claim 3, it is characterised in that first adjusting screw rod and institute
State and connected by hydraulic cylinder or pneumatic cylinder between the first hoist cable section.
7. stiffening girder of suspension bridge installation system according to claim 3, it is characterised in that the first hoist cable section and described
The outside of the second hoist cable section is provided with overcoat, and the overcoat is double-decker.
8. stiffening girder of suspension bridge installation system according to claim 3, it is characterised in that set on the base plate of the stiff girder
There is bracket, the bracket is slidably mounted on the bearing.
9. stiffening girder of suspension bridge installation system according to claim 3, it is characterised in that first beam section is away from described
One end of second beam section is provided with the first ear mount, and the tower body is provided with the second ear mount, first ear mount and second ear
Connected by connector between seat.
10. the stiffening girder of suspension bridge installation system according to claim 3~9 any one, it is characterised in that the main push-towing rope
Cord clip is provided with, the deck erection gantry is provided with for the loop wheel machine walking pin against the cord clip, loop wheel machine walking pin and the institute
State the spacer pad being provided between cord clip for filling up gap between the loop wheel machine walking pin and the cord clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621126141.9U CN206308620U (en) | 2016-10-14 | 2016-10-14 | Length adjustment device and stiffening girder of suspension bridge installation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621126141.9U CN206308620U (en) | 2016-10-14 | 2016-10-14 | Length adjustment device and stiffening girder of suspension bridge installation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206308620U true CN206308620U (en) | 2017-07-07 |
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ID=59242281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621126141.9U Active CN206308620U (en) | 2016-10-14 | 2016-10-14 | Length adjustment device and stiffening girder of suspension bridge installation system |
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| Country | Link |
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| CN (1) | CN206308620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544957A (en) * | 2016-10-14 | 2017-03-29 | 中交公局第三工程有限公司 | Length adjustment device, stiffening girder of suspension bridge mounting system and method |
-
2016
- 2016-10-14 CN CN201621126141.9U patent/CN206308620U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106544957A (en) * | 2016-10-14 | 2017-03-29 | 中交公局第三工程有限公司 | Length adjustment device, stiffening girder of suspension bridge mounting system and method |
| CN106544957B (en) * | 2016-10-14 | 2018-06-19 | 中交第一公路工程局有限公司 | Length adjustment device, stiffening girder of suspension bridge mounting system and method |
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Address after: 100020 Beijing, Guanzhuang, Chaoyang District, Zhou Patentee after: CHINA FIRST HIGHWAY ENGINEERING Co.,Ltd. Address before: 100020 Beijing, Guanzhuang, Chaoyang District, Zhou Patentee before: CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. |
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