CN106544957A - 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
- Publication number
- CN106544957A CN106544957A CN201610900599.3A CN201610900599A CN106544957A CN 106544957 A CN106544957 A CN 106544957A CN 201610900599 A CN201610900599 A CN 201610900599A CN 106544957 A CN106544957 A CN 106544957A
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- hoist cable
- screw rod
- adjusting screw
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- beam section
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- 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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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a kind of length adjustment device, stiffening girder of suspension bridge mounting system and method, it is related to technical field of bridge construction, the device includes threaded line the first adjusting screw rod in opposite direction and the second adjusting screw rod and is 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 two ends, first hoist cable section one end is connected with the top of tower body, and second hoist cable section one end is connected with the first beam section.The installation system is adjusted to the length of interim hoist cable using length adjustment device, to adjust the setting angle and installation site of stiff girder, is adjusted convenient.Additionally, the method elder generation erection support, is then installed on stiff girder on bearing again, and installation of the length adjustment device to stiff girder using interim hoist cable is adjusted, and installs 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 referred to main as superstructure using the cable that two sides are hung and be anchored in by Sarasota also known as suspension bridge
Weigh the bridge of component.To avoid in vehicle travel process, bridge floor deforms together with suspension cable, and modern suspension is typically equipped with
Stiff girder.Stiffening girder of suspension bridge acts primarily as the effect for making and transmitting 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 prior art after stiff girder installation, stiff girder
Setting angle and installation site are difficult to adjust, and are easily caused by the way of rear erection support and adjust repeatedly stiff girder, so as to
Affect the installation accuracy of stiff girder.
The content of the invention
It is an object of the invention to provide a kind of length adjustment device, which can adjust the length at two ends, so as to play essence
The effect for really adjusting.
It is an object of the invention to provide a kind of stiffening girder of suspension bridge installation system, which can be carried out to stiffening girder of suspension bridge
Install, and can constantly regulate, to ensure installation accuracy, while being easily installed.
Another object of the present invention is to provide a kind of stiffening girder of suspension bridge installation method, the peace which can be accurately and fast
Dress stiffening girder of suspension bridge, installation effect are good.
What embodiments of the invention were realized in：
A kind of length adjustment device, which 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 contrary.
A kind of stiffening girder of suspension bridge installation system, is suitable to stiff girder is installed on king-tower, and which includes being installed on king-tower
The bearing of sill, 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 being connected with each other and the second beam section, 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, and interim hoist cable includes 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 connected with the second hoist cable section, the one end of the first hoist cable section away from length adjustment device
Be connected with the top of tower body, the second hoist cable section away from length adjustment device one end and the first beam section near one end of the second beam section
Connection.
A kind of stiffening girder of suspension bridge installation method, which adopts 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, and which includes：The erection support first on the sill of king-tower；And in the tower body of king-tower
Top is installed by interim hoist cable；Secondly lift the first beam section and the two ends of the first beam section be respectively connecting to into tower body and interim hoist cable,
Then the distance between first hoist cable section and the second hoist cable section of interim hoist cable 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 beneficial effect of the embodiment of the present invention is：Adjusted with changing the first adjusting screw rod and second by rotating regulating sleeve
The distance between screw rod, so as to realize changing the length of whole length adjusting means, the first adjusting screw rod and the second adjusting screw rod
Rotary orientation it is contrary, it is possible to achieve when regulating sleeve is rotated, the first adjusting screw rod and the same phase of the second adjusting screw rod
For regulating sleeve is outwardly or inwardly moved.Using threaded adjusting, precision is higher, while adjusting more convenient.Meanwhile, the present invention is real
Stiff girder is divided into the first beam section and the second beam section by the stiffening girder of suspension bridge installation system for applying example offer, and is installed respectively,
Installation is more prone to, while interim hoist cable is connected with length adjustment device, using length of the length adjustment device to interim hoist cable
Degree is adjusted, and to adjust the setting angle and installation site of stiff girder, adjusts convenient, by the tune of length adjustment device
Section, makes stiff girder accurately be installed on bearing, after installation, without the need for being adjusted again, as bearing is accurately pacified in advance
Dress, then is accurately installed to stiff girder, is eliminated after stiff girder in prior art installs, then between stiff girder and sill
Erection support, and the regulation repeatedly of caused stiff girder, enormously simplify the complexity of installation and adjust difficulty.Additionally, this
The stiffening girder of suspension bridge installation method that inventive embodiments are provided, is first accurately installed to bearing, then installs stiff girder again
On bearing, it is adjusted using installation of the length adjustment device of interim hoist cable to stiff girder, it is to avoid repeatedly to stiff girder
Installation site be adjusted, install it is more accurate.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by to be used attached needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is that the stiffening girder of suspension bridge installation system that the embodiment of the present invention one is provided is used to install the structural representation of stiff girder
Figure；
Fig. 2 is the deck erection gantry of the stiffening girder of suspension bridge installation system that the embodiment of the present invention one is provided and the cooperation of stiff girder
Schematic diagram；
Fig. 3 is the first beam section of the stiffening girder of suspension bridge installation system that the embodiment of the present invention one is provided and the company of the second beam section
Connect schematic diagram；
Fig. 4 is the structural representation of the interim hoist cable of the stiffening girder of suspension bridge installation system that the embodiment of the present invention one is provided；
Fig. 5 is the structural representation of the length adjustment device of the stiffening girder of suspension bridge installation system that the embodiment of the present invention one is provided
Figure；
Fig. 6 is the sectional view of the interim hoist cable of the stiffening girder of suspension bridge installation system that the embodiment of the present invention one is provided；
Fig. 7 is the structural representation of the length adjustment device of the stiffening girder of suspension bridge installation system that the embodiment of the present invention two is provided
Figure.
Icon：110- bearings；The interim hoist cables of 120-；121- the first hoist cable sections；122- the second hoist cable sections；123- overcoats；
130- deck erection gantries；131- loop wheel machines walking pin；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 screwed holes of 144-；The second screwed holes of 145-；240- length adjustment devices；
245- protection mechanisms；The first steel wire ropes of 246-；The second steel wire ropes of 247-；The 3rd steel wire ropes of 248-；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- sills；303- main push-towing ropes；304- cord clips；The second ear mounts of 305-；The upper hangers of 306-.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Present invention enforcement generally described and illustrated in accompanying drawing herein
The component of example can be arranged and be designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment obtained under the premise of creative work is not made by technical staff, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then in subsequent accompanying drawing which further need not be defined and is explained.
In describing the invention, it should be noted that term " on ", D score, "left", "right", " interior ", " outward " etc. indicate
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 position relationship, or the orientation that usually understands of those skilled in the art or position relationship, be for only for ease of and retouch
State the present invention and simplify description, rather than indicate or imply that the device or element of indication must be with specific orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second " etc. are only used for
Description is distinguished, and it is not intended that indicating or implying relative importance.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or integratedly connect
Connect；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can
Being the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
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, hangs 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 110 accurate installation of bearing, 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, by positioning on main push-towing rope 303, is put more energy into for lifting
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, is made
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 303 anchor ear of main push-towing rope, to prevent loop wheel machine 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 303 linear change of pitch angle of main push-towing rope cause loop wheel machine to across
Middle sliding component.Due to 303 linear change of main push-towing rope, 304 size difference of cord clip of hoist cable, beam section has been lifted with preparation lifting beam section
Between must assure that >=the impact 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 specially design and produce the spacer pad of certain amount and length
132, 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 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 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.
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 are also equipped with fixing end 203 and abutting end 204, and the connected mode of the second beam section 202 and the first beam
The connected mode of section 201 is identical, will not be described 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 connects.
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 so as to be moved to the top of bearing 110, 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 by connector 206 between the first ear mount 205 and the second ear mount 305, and connector 206 herein connects for rigidity
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 into
The abutting end 204 of beam section 201, to realize the support of interim hoist cable 120,110 pairs of the first beam sections 201 of tower body 301 and bearing.
Length adjustment device 140 can be used cooperatively with various mechanism, for example, use cooperatively with rope, to adjust rope
Length；Or use cooperatively with door-plate, to adjust the gap between two door-plates；Can also need what is elongated or shortened with other
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 to hang on the top of the tower body 301 of king-tower 300, 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 adjusts spiral shell
The axial line of bar 141 and the second adjusting screw rod 142 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, processing ease.
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 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, the short each 20cm of tune, length adjust direction and be
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
During rotate in an anti-clockwise direction regulating sleeve 143, the first adjusting screw rod 141 and the second adjusting screw rod 142 are to outside regulating sleeve 143
It is mobile, so as to increased the distance between the first adjusting screw rod 141 and the second adjusting screw rod 142.
Additionally, the first screwed hole 144 and the second screwed hole 145 are respectively provided with the two ends of regulating sleeve 143, work as adjusting set
After the completion of cylinder 143 is adjusted, 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 fixation to regulating sleeve 143 and the first adjusting screw rod 141, likewise, using connector through the
Two screwed holes 145, and push against regulating sleeve 143 and the second adjusting screw rod 142 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, in the same manner,
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 adopts Prefabricated parallel stranded metallic cable, outsourcing bilayer PE (black
Internal layer colour outer layer) formed overcoat 123 protected.Zinc-plated high strength steel of the interim hoist cable 120 using a diameter of 5.2mm
Silk, steel wire normal intensity >=1670MPa, proof stress 1023MPa are 0.55 times of intensity of steel wire, and per root, interim hoist cable 120 contains 109
Root steel wire, PE overcoat thickness are 7mm.
Additionally, in other embodiments, can be grown with arranging 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 distance between the first hoist cable section 121 and the second hoist cable section 122.Work as profit
Adjusted after the distance between the first hoist cable section 121 and the second hoist cable section 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 adjusted again 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 higher precision.
The stiffening girder of suspension bridge installation system provided using the present embodiment is installed to stiff girder 200, installs easy, and
Stiff girder 200 in installation process, can be adjusted by the change of 120 length of interim hoist cable by its setting angle and installation site
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 the need for being adjusted again, installs as bearing 110 is accurate in advance, then stiff girder 200 is accurately installed, remove from
After in prior art, stiff girder 200 is installed, then between stiff girder 200 and sill 302 erection support 110, and it is caused
The regulation repeatedly of stiff girder 200, enormously simplify the complexity of installation and adjusts difficulty.
Stiff girder 200 will be installed using the stiffening girder of suspension bridge installation system of above-mentioned offer below, be that is to say, this
Embodiment will provide a kind of stiffening girder of suspension bridge installation method, and which comprises 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 301 top pre-embedded steel slab of tower body of king-tower 300, then at the scene in welding
Then one end of interim hoist cable 120 is connected by hanger 306 with upper hanger 306.
S3：Lift the first beam section 201.
Fig. 2 is referred to, specifically, first deck erection gantry 130 is positioned on main push-towing rope 303, and is utilized 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 utilizes the first beam section of elevator machine travel 201.
S5：First beam section 201 is installed：
First beam section 201 is connected to into tower body 301 and interim hoist cable 120, it is then interim using length adjustment device 140 pairs
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.
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 so as to mobile
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 the one end by interim hoist cable 120 away from tower body 301 is connected to the first beam section 201
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 making the length of interim hoist cable 120 reach target length, the first beam section 201 is accurately placed into bearing 110
On, then hoist engine is separated.Now, 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 now completed.
Further, in order that 110 uniform force of bearing, the first beam section 201 lift it is linear with join the two sections of a bridge, etc linear consistent, reckoning
After going out front suspension centre absolute altitude, interim hoist cable 120 is hung oneself a little carries out measurement and positioning, then is analyzed meter to 120 length of interim hoist cable
Calculate.The single hoist cable value of thrust of Midas's modeling analysis, informing producer with the value of thrust carries out pre- tensioning blanking, wherein, adjust length
It is 24.661m that degree adjusting means 140 makes the length of interim hoist cable 120, 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 first carry out in lifting it is pre- partially, pre- deviator is 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, will not be described here, refers to Fig. 3, due to
One beam section, 201 horizontal-shift, the lifting of the second beam section 202 cannot carry out the interim matching parts in building site with the first beam section 201 after getting up and connect
Connect, be computed, the first beam section 201 and the second beam section 202 can be connected temporarily 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 board 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 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 202 stable connections of the second beam section, hand is unclamped
After drawing cucurbit, interim hoist cable 120 does not temporarily take, and after waiting full-bridge to close up, (is now taken down with the first beam section of elevator machine travel 201
120) interim hoist cable, is connected with and is welded 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 present invention, and is pacified respectively
Dress, installation is more prone to, while the length using the interim hoist cable 120 of length adjustment device 140 pairs on interim hoist cable 120 is carried out
Adjust, to adjust the setting angle and installation site of stiff girder 200, adjust convenient, additionally, provided in an embodiment of the present invention
The method that stiffening girder of suspension bridge 200 is installed, is first accurately installed to bearing 110, stiff girder 200 is installed on bearing again then
On 110, avoid repeatedly to stiff girder 200 using installation of the length adjustment device 140 of interim hoist cable 120 to stiff girder 200
Installation site be adjusted, install it is 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 in the present embodiment and embodiment one
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
Can be found in 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, as 246 softness of the first steel wire rope 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, which can effectively prevent the first regulation spiral shell
Bar 141 and the second adjusting screw rod 142 under external force, when separating with regulating sleeve 143, play the work of a 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 143 script of regulating sleeve are released states, by the second steel wire rope 247 is by the first hoist cable section 121 and adjusts
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, that is to say, the distance between regulating sleeve 143 and first hoist cable section 121 are changing, by second
First hoist cable section 121 and regulating sleeve 143 are connected by steel wire rope 247, 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 are similar with the effect of the second steel wire rope 247, will not be described 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 when 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 second and adjusts spiral shell
Between bar 142, and the length of the first steel wire rope 246 is that is to say less than the length of regulating sleeve 143, the first steel wire rope 246
Arrange, can effectively prevent the first adjusting screw rod 141 and the second adjusting screw rod 142 from occurring to depart 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 ruptures, the first adjusting screw rod 141 and/or the second adjusting screw rod 142 with adjust
Section sleeve 143 occurs to separate, and now the second steel wire rope 247 and/or the 3rd steel wire rope 248 are in stress, further to adding
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 arranging 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.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of length adjustment device, it is characterised in which 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, and described first adjusts 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 stiff girder is installed on king-tower, it is characterised in which 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 with the bottom of the tower body of the king-tower away from one end of second beam section, described
Interim hoist cable includes the first hoist cable section and the second hoist cable section, and first adjusting screw rod is connected with the first hoist cable section, described
Second adjusting screw rod is connected with the second hoist cable section, one end and institute of the first hoist cable section away from the length adjustment device
State tower body top connection, the second hoist cable section away from the length adjustment device one end with first beam section near institute
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 between the second adjusting screw rod, be connected with the first steel wire rope, the length of first steel wire rope is more than the length of the regulating sleeve
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 connects.
6. stiffening girder of suspension bridge installation system according to claim 3, it is characterised in that first adjusting screw rod and institute
State.
7. stiffening girder of suspension bridge installation system according to claim 3, it is characterised in that the main push-towing rope is provided with cord clip,
The deck erection gantry is provided with for the loop wheel machine walking pin against the cord clip, is set between the loop wheel machine walking pin and the cord clip
Have for filling up the spacer pad in gap between loop wheel machine walking pin and the cord clip.
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. a kind of stiffening girder of suspension bridge installation method, it is characterised in which adopts stiffening girder of suspension bridge as claimed in claim 3
Installation system is installed, and the stiff girder includes the first beam section and the second beam section, and which includes：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 of the king-tower；Secondly lift first beam
The two ends of first beam section are simultaneously respectively connecting to the tower body and the interim hoist cable by section, then using the length adjustment
Device is adjusted to the distance between described first hoist cable section and the second hoist cable section of the interim hoist cable, makes described facing
When hoist cable length reach target length after, first beam section is installed on the bearing.
10. stiffening girder of suspension bridge installation method according to claim 9, it is characterised in that install second beam section, so
One end of chain block is connected to the base plate of first beam section afterwards, the other end of the chain block is connected to described second
The top board of beam section, after another piece of the second beam section of slinging again, after two the second adjacent beam sections of connection, takes down and described pulls calabash
Reed, after full-bridge closes up, is connected with corresponding second beam section using the first beam section described in the elevator machine travel, wherein,
When using the first beam section described in the elevator machine travel, the interim hoist cable is taken down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|---|---|
| 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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| CN106544957B CN106544957B (en) | 2018-06-19 |
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| CN106939556A (en) * | 2017-05-05 | 2017-07-11 | 贵州大学 | A kind of arch bridge cable-hoisting construction stayed knotting method knotted rope tensioning equipment |
| CN110565535A (en) * | 2019-09-29 | 2019-12-13 | 中铁大桥局集团有限公司 | Suspension bridge space main cable linear adjusting device and adjusting method |
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| 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 |
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|---|---|
| CN106544957B (en) | 2018-06-19 |
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Effective date of registration: 20170614 Address after: 100020 Beijing, Guanzhuang, Chaoyang District, Zhou Applicant after: CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. Address before: 101149 Beijing City, Tongzhou District Zhongguancun Tongzhou Science Park Bridge Science and technology industrial base of Jing Sheng No. 10 North Street Applicant before: THE THIRD ENGINEERING Co.,Ltd. OF THE HIGHWAY ENGINEERING BUREAU OF CCCC |
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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: CCCC FIRST HIGHWAY ENGINEERING GROUP Co.,Ltd. Address before: 100020 Zhou Jiajing, Guanzhuang, Chaoyang District, Beijing Patentee before: CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. |