CN110512521A - The docking facilities and interconnection method of big segment steel truss girder - Google Patents
The docking facilities and interconnection method of big segment steel truss girder Download PDFInfo
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- CN110512521A CN110512521A CN201910696451.6A CN201910696451A CN110512521A CN 110512521 A CN110512521 A CN 110512521A CN 201910696451 A CN201910696451 A CN 201910696451A CN 110512521 A CN110512521 A CN 110512521A
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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
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Abstract
The invention discloses a kind of docking facilities of big segment steel truss girder, and be used to have set a roof beam in place section and section to be set a roof beam in place docking；Big segment steel truss girder include wind up, lower edge, vertical bar, to extension bar and cross bearer；Docking facilities include: first pair of drawing mechanism, and one end is connect with wait the cross bearer in section of setting a roof beam in place, and the other end is connected with cross bearer corresponding in section of having set a roof beam in place；When first pair of drawing mechanism is when to drawing, a cross bearer of section to be set a roof beam in place corresponding cross bearer into section of having set a roof beam in place is close；Second pair of drawing mechanism, both ends are respectively provided at the middle part of section of having set a roof beam in place, section to be set a roof beam in place；When second pair of drawing mechanism to draw when, it is corresponding close to extension bar into section of having set a roof beam in place wait a pair of of extension bar in section of setting a roof beam in place；Top lifting mechanism comprising lift up device；Lift up device is set to wait on winding up in section of setting a roof beam in place, and top is fixed；When the upward top lifting of lift up device, section to be set a roof beam in place is pushed.The present invention effectively adjusts the section and wait the relative deformation between section of setting a roof beam in place of having set a roof beam in place, and realizes big segment steel truss girder docking.
Description
Technical field
The present invention relates to steel truss girder docking technique fields, and in particular to a kind of docking facilities of big segment steel truss girder and docking
Method.
Background technique
With the fast development of economy and scientific and technical innovation, the bridge span in transport development is also progressively longer.Large span
Bridge is mostly cable-stayed bridge, and for cable-stayed bridge, for especially combined heavily loaded cable-stayed bridge, compared to solid web girder, adopt
It can reduce self weight with steel truss girder and increase rigidity to be better adapted to the load-carrying members compared with large span.
The installation of steel truss girder is by multiple segment steel truss girders mostly to realization is fetched, in the prior art, a kind of
Conventional interconnection method is that temporary staging is set up below docking region, and setting is supported to the lower edge of frame steel truss girder on temporary staging,
Adjustment winding up highly and to frame steel truss girder position to frame steel truss girder is suspended in midair by crane, and crane persistently suspends in midair, to butt welding
After the completion, crane is removed.But when large span stayed-cable bridge uses big segment steel truss girder integral erection, due to big segment steel truss
Beam has been formed from great stable structure, and therefore, front fulcrum counter-force is huge at Standing position of a crane, leads to the big segment steel truss of frame
The position of beam and the banjo fixing butt jointing to frame steel truss girder is big in vertical, axially opposing deformation, in this case, according to above-mentioned normal
Interconnection method is advised, big segment steel truss girder can not be directly docked by the way of punch.
Therefore, one of goal of the invention of the invention aims to solve the problem that problem of the big segment steel truss girder in docking.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of big segment steel truss girders to tipping
It sets and interconnection method, effectively adjusts the section and wait the relative deformation between section of setting a roof beam in place of having set a roof beam in place, realize big segment steel truss girder docking.
To achieve the above objectives, in a first aspect, the embodiment of the present invention provides a kind of docking facilities of big segment steel truss girder,
For docking two big segment steel truss girders, defining two big segment steel truss girder is set a roof beam in place section and section to be set a roof beam in place；It is described
Segment steel truss girder includes: greatly
The several groups string beam element of parallel interval setting, every group of string beam element include one wind up, a lower edge, at least one with
It is described wind up the vertical bar being connected with lower edge and two be set to outside all vertical bars to extension bar；
Several cross bearers, wind up described in each adjacent two between be equipped at least two cross bearers, and two are described big
Crossbeam be respectively arranged on two described in the both ends winded up, set wait the cross bearer in section of setting a roof beam in place is opposite with the cross bearer in section of having set a roof beam in place
It sets；
The docking facilities include:
First pair of drawing mechanism, one end are connect with wait the cross bearer in section of setting a roof beam in place, and the other end is corresponding with section of having set a roof beam in place
Cross bearer connection；When first pair of drawing mechanism is when to drawing, a cross bearer of the section to be set a roof beam in place is to the section of having set a roof beam in place
In corresponding cross bearer it is close；
Second pair of drawing mechanism, both ends are respectively provided at the middle part of the set a roof beam in place section, section to be set a roof beam in place；It draws when described second Dui
When to drawing, a pair of of extension bar wait in section of setting a roof beam in place is corresponding close to extension bar into the section of having set a roof beam in place for mechanism；
Top lifting mechanism comprising lift up device；The lift up device is set to described wait on winding up in section of setting a roof beam in place, and the top lifting
The top of device is fixedly installed；When the upward top lifting of the lift up device, the section to be set a roof beam in place is pushed.
Based on the above technical solution, the top lifting mechanism further include:
One shoulder pole girder, one end are connect with winding up in section of having set a roof beam in place, and the other end is connect with wait winding up in section of setting a roof beam in place, institute
State the top that shoulder pole girder is installed in the lift up device；When the lift up device jacks up the shoulder pole girder upwards, the section to be set a roof beam in place
In wind up and move downward.
Based on the above technical solution, the top lifting mechanism further include:
Two third ear mounts, be installed in respectively section of having set a roof beam in place wind up and the winding up of section to be set a roof beam in place on, the shoulder pole girder
Both ends pass through pin shaft respectively and are detachably connected with two third ear mounts.
Based on the above technical solution, first pair of drawing mechanism includes:
Steel cable, both ends are connected with two opposite cross bearers respectively；
Jack is set at least one end of the steel cable, for shrinking the length of the steel cable.
Based on the above technical solution, first pair of drawing mechanism further include:
Two first ear mounts are installed in the section and wait set a roof beam in place in section of having set a roof beam in place, described in each first ear mount and one respectively
Steel cable is detachably connected.
Based on the above technical solution, extension bar is connect in one end of second pair of drawing mechanism and section of having set a roof beam in place,
The other end is connect with wait the vertical bar in section of setting a roof beam in place close to this to extension bar.
Second aspect, the embodiment of the present invention also provide a kind of docking facilities of big segment steel truss girder, are used for big by two
Segment steel truss girder is docked, and defining two big segment steel truss girder is set a roof beam in place section and section to be set a roof beam in place；The big segment steel truss girder
Include:
The several groups string beam element of parallel interval setting, every group of string beam element include one wind up, a lower edge, at least one with
It is described wind up the vertical bar being connected with lower edge and two be set to outside all vertical bars to extension bar；
Several cross bearers, wind up described in each adjacent two between be equipped at least two cross bearers, wait in section of setting a roof beam in place
Cross bearer is oppositely arranged with the cross bearer in section of having set a roof beam in place；
The docking facilities include:
First pair of drawing mechanism, one end for connect with the cross bearer in section of having set a roof beam in place, the other end for wait set a roof beam in place
Corresponding cross bearer connection in section；
Second pair of drawing mechanism, both ends are respectively used to be located at the middle part of the set a roof beam in place section, section to be set a roof beam in place；
Top lifting mechanism comprising lift up device；The bottom of the lift up device be used to be set to it is described wait winding up in section of setting a roof beam in place,
Top is for being fixedly installed；The lift up device is used in upward top lifting, pushes the section to be set a roof beam in place.
The third aspect, the embodiment of the present invention also provide a kind of interconnection method of big segment steel truss girder, and the interconnection method is logical
It crosses above-mentioned docking facilities such as to realize, the step of interconnection method includes:
Step 1: will align and dock with all lower edges in section of having set a roof beam in place wait all lower edges in section of setting a roof beam in place；
Step 2: using first pair of drawing mechanism to drawing Duan Yuyi to be set a roof beam in place to set a roof beam in place the cross bearer in section, slightly aligning section to be set a roof beam in place
In to extension bar with set a roof beam in place in section to extension bar；
Step 3: using second pair of drawing mechanism to drawing Duan Yuyi to be set a roof beam in place to set a roof beam in place the middle part of section, exactitude position and to reception frame
In beam section to extension bar with set a roof beam in place in section to extension bar；
Step 4: using the upward top lifting of lift up device in top lifting mechanism, pushing is described wait winding up in section of setting a roof beam in place, and contraposition is simultaneously
It winds up described in docking, that is, completes the docking of big segment steel truss girder.
Based on the above technical solution, the specific steps of the step 4 include:
Step 401: reuse first pair of drawing mechanism to drawing Duan Yuyi to be set a roof beam in place to set a roof beam in place the cross bearer in section, thick contraposition to
Winding up and winding up in section of having set a roof beam in place in section of setting a roof beam in place；
Step 402: using the upward top lifting of lift up device in top lifting mechanism, pushing is described wait winding up in section of setting a roof beam in place, accurately
It aligns and sets a roof beam in place winding up and winding up in section of having set a roof beam in place in section to reception.
Based on the above technical solution, first pair of drawing mechanism includes the first ear mount, second pair of drawing mechanism
Including the second ear mount, the top lifting mechanism includes third ear mount；The step 1 further include:
Before docking lower edge, first ear mount, the second ear mount, third ear mount are preset in section of having set a roof beam in place, to frame
In beam section.
Compared with the prior art, the advantages of the present invention are as follows:
(1) embodiment of the present invention provides a kind of docking facilities of big segment steel truss girder, at the docking of big segment steel truss girder
Reasonable layout regulating device effectively adjusts the relative deformation set a roof beam in place between section and the banjo fixing butt jointing of section to be set a roof beam in place, and realizes big section
The rapid abutting joint construction of section steel truss girder, improves joint quality.
(2) regulating device used in the embodiment of the present invention, structure is simple, and can Reusability, improve utilization rate, reduce work
Cheng Chengben.
(3) embodiment of the present invention provides a kind of interconnection method of big segment steel truss girder, and this method is in particular order, right
The relative deformation set a roof beam in place between section and the banjo fixing butt jointing of section to be set a roof beam in place should be adjusted, realizes that the rapid abutting joint of big segment steel truss girder is applied
Work improves joint quality and sets up work efficiency.
Detailed description of the invention
Fig. 1 is the docking facilities facade arrangement schematic diagram of big segment steel truss girder in the embodiment of the present invention；
Fig. 2 is the docking facilities side arrangement schematic diagram of big segment steel truss girder in the embodiment of the present invention；
Fig. 3 is that the vertical view of the docking facilities of the big segment steel truss girder of the embodiment of the present invention arranges simplified schematic diagram；
Fig. 4 is the schematic diagram of top lifting mechanism and Fig. 1 same view angle；
Fig. 5 is the schematic diagram of first pair of drawing mechanism and Fig. 1 same view angle；
In figure: 1, string beam element；11, it winds up；12, lower edge；13, vertical bar；14, brace；140, to extension bar；2, big horizontal
Beam；3, first pair of drawing mechanism；31, the first ear mount；32, wrap-up；33, steel cable；34, nut；4, second pair of drawing mechanism；5, it rises
Push up mechanism；50, lift up device；51, third ear mount；52, shoulder pole girder；53, pin shaft；A, it has set a roof beam in place section；B, section to be set a roof beam in place.
Specific embodiment
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment
Referring to shown in Fig. 1~3, the embodiment of the present invention provides a kind of docking facilities of big segment steel truss girder, is used for two
A big segment steel truss girder is docked, and defines two big segment steel truss girder as section A and wait section B that sets a roof beam in place of having set a roof beam in place；The big segment
Steel truss girder includes:
The several groups string beam element 1 of parallel interval setting, every group of string beam element 1 include one winding up 11, one lower edge 12, at least
One with it is described wind up 11 and the vertical bar 13 that is connected of lower edge 12 and two be set to outside all vertical bars 13 to extension bar
140；
Several cross bearers 2 wind up described in each adjacent two and are equipped at least two cross bearers 2, and two institutes between 11
State cross bearer 2 be respectively arranged on two described in wind up 11 both ends, wait in section B that sets a roof beam in place cross bearer 2 and the big cross set a roof beam in place in section A
Beam 2 is oppositely arranged；
The docking facilities include:
First pair of drawing mechanism 3, one end are connect with wait the cross bearer 2 in section B that sets a roof beam in place, in the other end and section A that set a roof beam in place
Corresponding cross bearer 2 connects；When first pair of drawing mechanism 3 is when to drawing, the cross bearer 2 wait section B that sets a roof beam in place is to described
Corresponding cross bearer 2 in section A of having set a roof beam in place is close；
Second pair of drawing mechanism 4, both ends are respectively provided at section A that set a roof beam in place, wait the middle part for section B that sets a roof beam in place；When described second
To drawing mechanism 4 when to drawing, a pair of of extension bar 140 wait in section B that sets a roof beam in place is corresponding to extension bar into section A that set a roof beam in place
140 is close；
Top lifting mechanism 5 comprising lift up device 50；The lift up device 50 be set to it is described wait winding up on 11 in section B that sets a roof beam in place, and
The top of the lift up device 50 is fixedly installed；It is described to be pushed wait section B that sets a roof beam in place when the 50 upward top lifting of lift up device.
The principle of the invention is carried out below with reference to the docking facilities of the embodiment of the present invention and the usage mode of the docking facilities
It illustrates.In the actual construction process, using suspender suspend in midair wait set a roof beam in place section B so that wait in section B that sets a roof beam in place lower edge 12 with set a roof beam in place
Lower edge 12 in section A is aligned and is docked；Using first pair of drawing mechanism 3 to the cross bearer 2 in section A that set a roof beam in place and wait in section B that sets a roof beam in place
Cross bearer 2 carry out shortening the cross bearer 2 wait section B that sets a roof beam in place and corresponding cross bearer 2 in section A that set a roof beam in place to drawing
Between space length, further also tentatively shorten wait in section B that sets a roof beam in place to extension bar 140 and corresponding docking in section A that set a roof beam in place
Space length between bar 140；Section A that set a roof beam in place is drawn, wait the middle part for section B that sets a roof beam in place using second pair 4 pairs of drawing mechanism, shortens institute
It states wait a pair of of extension bar 140 and the corresponding space length to extension bar 140 in section A that set a roof beam in place in section B that sets a roof beam in place, so that described
Set a roof beam in place in section A to extension bar 140 and wait in section B that sets a roof beam in place to the effectively contraposition docking of extension bar 140；It will be to using top lifting mechanism 5
Set a roof beam in place section B wind up 11 press to section A that set a roof beam in place wind up 11 it is concordant after will wind up and 11 dock, due to the top of lift up device 50
It is fixed setting, therefore, when the upward top lifting of lift up device 50, then the effect by power, the bottom of the lift up device 50 is downward
Movement, and then lead to 11 pushings of winding up being connected with lift up device 50, achieve the purpose that instead to push up described wait section B that sets a roof beam in place.First pair of drawing
Winding up for being not aligned with 11 and is aligned and is docked to extension bar 140 by 3, second pairs of drawing mechanisms 4 of mechanism and top lifting mechanism 5, is adjusted
Relative displacement between beam section connector, and then improve merging precision and joint quality.
In embodiments of the present invention, section A and be big segment steel truss girder wait section B that sets a roof beam in place of having set a roof beam in place, theoretically comes
It says, by after the lower edge 12 for section B that sets a roof beam in place is docked with section A that set a roof beam in place, 11 and is and frame to extension bar 140 wait winding up for section B that sets a roof beam in place
What beam section A can be aligned and be docked just, however, in actual work progress, for big segment steel truss girder, by
It has been formed in it from great stable structure, therefore after the lower edge 12 for lifting section B that sets a roof beam in place to reception, wait section B that sets a roof beam in place
Wind up and 11 and alignment be practically without to extension bar 140, there are vertical, axially opposing deformations, wherein wait in section A that sets a roof beam in place
Wind up 11 docking at be above wind up in section B that set a roof beam in place 11 height, under these conditions, being wait section B that sets a roof beam in place can not be straight
It connects and with section A that set a roof beam in place aligns and dock.Using a kind of docking facilities of big segment steel truss girder provided in an embodiment of the present invention,
Can by it is vertical, axially be not aligned with wind up 11 and to extension bar 140 align and dock, by shorten adjust wait set a roof beam in place section B with
The relative displacement set a roof beam in place between section A center tap, achievees the purpose that exactitude position, to directly be docked, effectively improves pair
Connect precision and joint quality.
Specifically, the lift up device 50 is jack.Jack source is wide, cheap, advantageously reduces docking facilities
Economic cost.
Referring to shown in Fig. 1~3, in embodiments of the present invention, set a roof beam in place section A and the section to be set a roof beam in place of the docking facilities docking
It include three groups of string beam elements 1 in B, every group of string beam element 1 includes that 11, one lower edge, 12, two parallel verticals settings of winding up exist
The brace 14 set on the diagonal line of 13, two vertical bars 13 of vertical bar winded up between 11 and lower edge 12 and two
Outside all vertical bars 13 to extension bar 140, wherein can be with phase in section A that set a roof beam in place wait a pair of of extension bar 140 in section B that sets a roof beam in place
It is corresponding to extension bar 140 be connected constitute an oblique rod identical with the brace 14.Wherein, two adjacent to wind up between 11
If there are two cross bearer 2, two cross bearers 2 be located at it is described wind up 11 both ends, for the big segment steel that connects
Trusses connects.
Shown in Figure 4, as further improving and supplementing to the present embodiment, the top lifting mechanism 5 further includes one flat
Spreader beam 52, one end are described flat with 11 connections of winding up in section A that set a roof beam in place, the other end and wait 11 connections of winding up in section B that sets a roof beam in place
Spreader beam 52 is installed in the top of the lift up device 50；It is described to frame when the lift up device 50 jacks up the shoulder pole girder 52 upwards
Winding up in beam section B 11 moves downward.52 easy processing of shoulder pole girder, source is wide, can consolidate by welding with lift up device 50
Even, entire mode is simply easily constructed.Meanwhile shoulder pole girder 52 being erected to the top of lift up device 50, and the both ends of shoulder pole girder 52 are solid
It is fixed, when increasing the length of lift up device 50, due to the top of lift up device 50 is confined, lift up device 50 downwardly against with rise
Apical organ 50 it is direct-connected wind up 11, therefore, can be concordant with section A that set a roof beam in place by being pressed to wait section B that sets a roof beam in place of upwarping, be conducive to wind up 11
Contraposition docking.
Further, the top lifting mechanism 5 further includes two third ear mounts 51, is installed in winding up for section A that set a roof beam in place respectively
11 and winding up on 11 wait section B that sets a roof beam in place, the both ends of the shoulder pole girder 52 pass through pin shaft 53 and two third ear mounts 51 respectively
It is detachably connected.By the way that third ear mount 51 is arranged on 11 winding up, by the both ends of shoulder pole girder 52 by can by way of pin joint
The mode of disassembly, which is connected in, winds up on 11, the anti-top purpose wait section B that sets a roof beam in place of lift up device 50 not only may be implemented, also, can
The mode of disassembly is conducive to the Reusability of top lifting mechanism 5, when needing using top lifting mechanism 5, using pin shaft 53 by shoulder pole girder
52 are mounted in third ear mount 51, conversely, can then disassemble shoulder pole girder 52 so that next time continues to use, improve docking facilities
In components frequency of use, the expenditure cost of construction installation is effectively reduced.
Shown in referring to fig. 2~3, each wind up 11 top be equipped with top lifting mechanism 5, meanwhile, the both ends of the top lifting mechanism 5
Also it is connected respectively with wait section B that sets a roof beam in place, section A that set a roof beam in place, multiple top lifting mechanisms 5 is set along the axial direction of big segment steel truss girder,
Improve on big segment steel truss girder it is multiple wind up 11 docking point docking it is accurate, reduce the opposite position between entire beam section interface
It moves, it is ensured that the joint quality of entire big segment steel truss girder avoids attending to one thing and lose sight of another, improves the precision of docking.
It is shown in Figure 5, as the first embodiment of first pair of drawing mechanism in the embodiment of the present invention, described first pair
Drawing mechanism 3 includes steel cable 32 and a jack 33, and 32 both ends of steel cable are connected with two opposite cross bearers 2 respectively；It is described
Jack 33 is set to one end of the steel cable 32, for shrinking the length of the steel cable 32.By be oppositely arranged two cross bearers
It carries out shortening the space length of cross bearer 2 to drawing by jack 33, interval is shortened wait in the middle part of section B that sets a roof beam in place, section A that set a roof beam in place
To the space length between extension bar 140.
Further, first pair of drawing mechanism further includes two first ear mounts 31, be installed in respectively set a roof beam in place section A and to
It sets a roof beam in place on section B, each first ear mount 31 is detachably connected with a steel cable 32.Specifically, the both ends of the steel cable 32
Two the first ear mounts 31 are each passed through, one end is fastened by nut 34, and the other end is connected on jack 33, passes through jack 33
Adjust the length for shrinking the steel cable 32, with realize two cross bearers 2 to drawing, and in the present embodiment, dismountable mode
Be conducive to the Reusability of first pair of drawing mechanism.
As second of embodiment of first pair of drawing mechanism in the embodiment of the present invention, first pair of drawing mechanism includes two
Ear mount, two wrap-ups and a steel cable, two ear mounts are installed in section A and wait set a roof beam in place on section B of having set a roof beam in place respectively, each described
Ear mount is detachably connected with a wrap-up, and the steel cable both ends are connected with two wrap-ups respectively, and can be wound around
On the wrap-up.This form of implementation has existed in the prior art, therefore, is not illustrated in Figure of description.
Two cross bearers that first pair of drawing mechanism will be oppositely arranged by the way of winding steel cable carry out shortening cross bearer to drawing
Space length, interval shorten in the middle part of wait section B that sets a roof beam in place, section A that set a roof beam in place to the space length between extension bar, secondly, by will receive
Winding apparatus is removably connected on cross bearer, not only may be implemented to the purpose drawn wait section B that sets a roof beam in place, section A that set a roof beam in place,
Also, the Reusability that dismountable mode is conducive to first pair of drawing mechanism will be wound when needing using first pair of drawing mechanism
Device is mounted in ear mount, conversely, can then disassemble first pair of drawing mechanism so that next time continues to use, improves docking facilities
In components frequency of use, the expenditure cost of construction installation is effectively reduced.
As the third embodiment of first pair of drawing mechanism in the embodiment of the present invention, first pair of drawing mechanism 3 includes
One wirerope, a fluid-pressure straining device, it is described wait section B that sets a roof beam in place equipped with a hole, one end of the wirerope be installed in it is described
It sets a roof beam in place on a cross bearer 2 of section A, the other end passes through fluid-pressure straining device described in the Kong Houyu and is connected, by controlling hydraulic tensioning
Device adjusts the length of wirerope, with reach shorten the cross bearer 2 wait section B that sets a roof beam in place with it is right in section A that set a roof beam in place
The space length for the cross bearer 2 answered.
Shown in referring to fig. 2~3, uniformly distributed on each cross bearer 2 there are two first pair of drawing mechanism 3, first pair of rational deployment drawings
The quantity of mechanism 3 can accurately be docked the biggish cross bearer of span 2 is whole, realize entire cross bearer 2 biggish
Accurate docking in span, further increases joint quality.Meanwhile first pair of drawing mechanism 3 being set to the upper surface of cross bearer 2,
Top lifting mechanism 5, which is located at, winds up on 11, is provided at the top of steel truss girder, improves mostly to the operating surface drawn or when top lifting operates
Operability of constructing and the security performance of high altitude operation.
It is shown in Figure 1, as a kind of preferred embodiment of the embodiment of the present invention, one end of second pair of drawing mechanism 4 with
It has set a roof beam in place and extension bar 140 has been connected in section A, the other end is connect with wait the vertical bar 13 to extension bar 140 close in section B that sets a roof beam in place.It will
One end of second pair of drawing mechanism 4 is fixed in the vertical bar 13 wait section B that sets a roof beam in place, the other end be fixed on section A that set a roof beam in place to extension bar
On 140, in conjunction with vertical, the axial relative displacement to extension bar 140, embodiments thereof are simple to operation.Specifically, second pair of drawing
4 one end of mechanism is set to the centre or more on the upper side of the vertical bar 13 wait section B that sets a roof beam in place, and the other end is set to the docking in section A that set a roof beam in place
The free end of bar 140, also can effectively avoid to during drawing wait in section B that sets a roof beam in place with it is opposite to extension bar 140 in section A that set a roof beam in place
The interference to extension bar 140.
In embodiments of the present invention, second pair of drawing mechanism 4 is similar to the mechanism of first pair of drawing mechanism 3, described
Second pair of drawing mechanism 4 includes the second ear mount, the second rolling-up mechanism, the second steel cable, and therefore, second pair of drawing mechanism 4 is illustrating
Book attached drawing is not shown, and the specific structure of second pair of drawing mechanism 4 no longer repeats one by one in sheet, and certainly, second pair of drawing mechanism 4 is also
Can for it is in the prior art any one to pull-up structure.When the distance between second pair of 4 both ends of drawing mechanism be it is accessible most
When short distance, when being mounted on other positions relative to second pair of drawing mechanism 4 to drawing ability, tensioning ability is stronger, therefore, in this way
Setting effective tensioning effectively can be carried out to extension bar 140.
As the another way of the embodiment of the present invention, one end of second pair of drawing mechanism 4 is set to pair wait section B that sets a roof beam in place
On extension bar 140, the other end is set to the set a roof beam in place section A opposite to extension bar 140 wait section B that sets a roof beam in place on extension bar 140, this
The distance of steel cable in kind arrangement in second pair of drawing mechanism 4 can reach minimum, be conducive to pull, the present embodiment is not being said
It is illustrated in bright book attached drawing.
A kind of docking facilities of big segment steel truss girder provided in an embodiment of the present invention, it is therein to drawing mechanism, top lifting mechanism
Source be conventional facility, when these mechanisms are reasonably arranged on big segment steel truss girder and are collocated with each other, can will
Two big segment steel truss girders are effectively docked, and adjust the relative displacement between beam section connector, and then improve merging precision and right
Connect quality.
Docking for big segment steel truss girder in the construction of one bridge, needs repeatedly to be docked, will be in docking facilities
The first ear mount 31, the second ear mount, third ear mount 51 be arranged on steel truss girder in advance, do not influence lifting operation, save the duration；Also
Can docking components effectively in Reusability docking facilities, the construction cost in docking construction is saved, for big segment steel truss
Erection has highly application value.
Referring to shown in Fig. 1~2, the embodiment of the present invention also provides second aspect, and the embodiment of the present invention also provides a kind of big section
The docking facilities of section steel truss girder, are used to dock two big segment steel truss girders, and defining two big segment steel truss girder is
Set a roof beam in place section A and wait section B that sets a roof beam in place；The big segment steel truss girder includes:
The several groups string beam element 1 of parallel interval setting, every group of string beam element 1 include one winding up 11, one lower edge 12, at least
One with it is described wind up 11 and the vertical bar 13 that is connected of lower edge 12 and two be set to outside all vertical bars 13 to extension bar
140；
Several cross bearers 2 wind up described in each adjacent two and are equipped at least two cross bearers 2 between 11, wait section B that sets a roof beam in place
In cross bearer 2 be oppositely arranged with the cross bearer 2 in section A that set a roof beam in place；
The docking facilities include:
First pair of drawing mechanism 3, one end for connect with the cross bearer 2 in section A that set a roof beam in place, the other end for to frame
Corresponding cross bearer 2 connects in beam section B；
Second pair of drawing mechanism 4, both ends are respectively used to be located at section A that set a roof beam in place, wait the middle part for section B that sets a roof beam in place；
Top lifting mechanism 5 comprising lift up device 50；The bottom of the lift up device 50 is used to be set to described wait in section B that sets a roof beam in place
It winds up on 11, top is for being fixedly installed；The lift up device 50 is used in upward top lifting, is pushed described wait section B that sets a roof beam in place.
Provided in an embodiment of the present invention is state of the docking facilities when not constructing, when in use, first pair of drawing mechanism
3, winding up of being not aligned with 11 and is aligned and is docked to extension bar 140 by second pair of drawing mechanism 4 and top lifting mechanism 5, adjusts beam section
Relative displacement between connector, and then improve merging precision and joint quality.
The embodiment of the present invention also provides a kind of interconnection method of big segment steel truss girder, and the interconnection method passes through as above-mentioned
Docking facilities realize, the step of interconnection method includes:
Step 1: will align and dock with all lower edges 12 in section A that set a roof beam in place wait all lower edges 12 in section B that sets a roof beam in place；
Step 2: being drawn wait the cross bearer 2 in section B and section A that set a roof beam in place that sets a roof beam in place using first pair 3 Duis of drawing mechanism, thick contraposition is to frame
In beam section B to extension bar 140 with set a roof beam in place in section A to extension bar 140；
Step 3: the middle part drawn wait set a roof beam in place section B and section A that set a roof beam in place using second pair 4 Duis of drawing mechanism, exactitude position are simultaneously docked
Wait in section B that sets a roof beam in place in the extension bar 140 and section A that set a roof beam in place to extension bar 140；
Step 4: using the upward top lifting of lift up device 50 in top lifting mechanism 5, push it is described wait wind up 11 in section B that sets a roof beam in place,
Align and dock it is described wind up 11, that is, complete the docking of big segment steel truss girder.
In order to further increase joint quality, further, the specific steps of the step 4 include:
Step 401: it reuses 3 pairs of first pair of drawing mechanism and draws wait the cross bearer 2 in section B and section A that set a roof beam in place that sets a roof beam in place, it is thick right
11 11 are winded up in section A with having set a roof beam in place wait winding up in section B that sets a roof beam in place in position；
Step 402: using the upward top lifting of lift up device 50 in top lifting mechanism 5, pushing described wait winding up in section B that sets a roof beam in place
11, exactitude position simultaneously 11 winds up 11 with section A that set a roof beam in place to reception winding up in section B of setting a roof beam in place.
Specifically, first pair of drawing mechanism 3 includes the first ear mount 31, and second pair of drawing mechanism 4 includes the second ear mount,
The top lifting mechanism 5 includes third ear mount 51；The step 1 further include:
Before docking lower edge 12, first ear mount 31, the second ear mount, third ear mount 51 are preset in section of having set a roof beam in place
A, wait set a roof beam in place on section B.
In embodiments of the present invention, in particular order, i.e., first coarse adjustment accurate adjustment is to dock to extension bar 140, In for this method
It 11 is docked to winding up, it is corresponding to adjust the relative deformation set a roof beam in place between section and the banjo fixing butt jointing of section to be set a roof beam in place, realize big section
The rapid abutting joint construction of section steel truss girder, improves joint quality and sets up work efficiency, and components used in interconnection method are simply easy
, interconnection method is simple, being capable of the big segment steel truss girder of effective rapid abutting joint；Secondly, default first ear mount 31, the second ear mount, the
Docking facilities and big segment steel truss girder are detachably connected by three ear mounts 51, are conducive to docking facilities and are continued to use for docking next time,
The frequency of use for improving the components in docking facilities, is effectively reduced the expenditure cost of construction installation.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of docking facilities of big segment steel truss girder are used to dock two big segment steel truss girders, define two big
Segment steel truss girder is set a roof beam in place section (A) and section to be set a roof beam in place (B)；The big segment steel truss girder includes:
The several groups string beam element (1) of parallel interval setting, every group of string beam element (1) include one wind up (11), a lower edge (12),
At least one winds up (11) and vertical bar (13) that lower edge (12) is connected and two are set to all vertical bars (13) with described
Outside to extension bar (140)；
Several cross bearers (2) wind up described in each adjacent two and are equipped at least two cross bearers (2) between (11), and two
The cross bearer (2) is winded up the both ends of (11) described in being respectively arranged on two, the cross bearer (2) in section (B) to be set a roof beam in place with set a roof beam in place
Cross bearer (2) in section (A) is oppositely arranged；
It is characterized in that, the docking facilities include:
First pair of drawing mechanism (3), one end are connect with the cross bearer (2) in section to be set a roof beam in place (B), the other end and section of having set a roof beam in place
(A) corresponding cross bearer (2) connection in；When first pair of drawing mechanism (3) is when to drawing, the one of the section (B) to be set a roof beam in place is big
Crossbeam (2) Xiang Suoshu corresponding cross bearer (2) in section (A) of having set a roof beam in place is close；
Second pair of drawing mechanism (4), both ends are respectively provided at the middle part of the set a roof beam in place section (A), section to be set a roof beam in place (B)；When described
When to drawing, a pair of of extension bar (140) Xiang Suoshu in the section (B) to be set a roof beam in place has set a roof beam in place corresponding in section (A) two pairs of drawing mechanisms (4)
It is close to extension bar (140)；
Top lifting mechanism (5) comprising lift up device (50)；The lift up device (50) is set to winding up in the section (B) to be set a roof beam in place
(11) on, and the top fixed setting of the lift up device (50)；When the lift up device (50) upward top lifting, the section to be set a roof beam in place
(B) it pushes.
2. the docking facilities of big segment steel truss girder as described in claim 1, which is characterized in that the top lifting mechanism (5) is also wrapped
It includes:
One shoulder pole girder (52), one end are connect with wind up (11) in section of having set a roof beam in place (A), in the other end and section to be set a roof beam in place (B)
It winds up (11) connection, the shoulder pole girder (52) is installed in the top of the lift up device (50)；When the lift up device (50) pushes up upwards
When playing shoulder pole girder (52), wind up (11) in the section (B) to be set a roof beam in place are moved downward.
3. the docking facilities of big segment steel truss girder as claimed in claim 2, which is characterized in that the top lifting mechanism (5) is also wrapped
It includes:
Two third ear mounts (51), be installed in respectively section of having set a roof beam in place (A) wind up (11) and section to be set a roof beam in place (B) winds up (11)
On, the both ends of the shoulder pole girder (52) pass through pin shaft (53) respectively and are detachably connected with two third ear mounts (51).
4. the docking facilities of big segment steel truss girder as described in claim 1, which is characterized in that first pair of drawing mechanism (3)
Include:
Steel cable (32), both ends are connected with two opposite cross bearers (2) respectively；
Jack (33) is set at least one end of the steel cable (32), for shrinking the length of the steel cable (32).
5. the docking facilities of big segment steel truss girder as claimed in claim 4, which is characterized in that first pair of drawing mechanism (3)
Further include:
Two first ear mounts (31), are installed in respectively in section of having set a roof beam in place (A) and section to be set a roof beam in place (B), each first ear mount
(31) detachably it is connected with a steel cable (32).
6. the docking facilities of big segment steel truss girder as described in claim 1, which is characterized in that second pair of drawing mechanism (4)
One end extension bar (140) is connect with section of having set a roof beam in place (A), close to this to extension bar (140) in the other end and section to be set a roof beam in place (B)
Vertical bar (13) connection.
7. a kind of docking facilities of big segment steel truss girder are used to dock two big segment steel truss girders, define two big
Segment steel truss girder is set a roof beam in place section (A) and section to be set a roof beam in place (B)；The big segment steel truss girder includes:
The several groups string beam element (1) of parallel interval setting, every group of string beam element (1) include one wind up (11), a lower edge (12),
At least one winds up (11) and vertical bar (13) that lower edge (12) is connected and two are set to all vertical bars (13) with described
It is outer to extension bar (140)；
Several cross bearers (2) wind up described in each adjacent two and are equipped at least two cross bearers (2) between (11), wait set a roof beam in place
Cross bearer (2) in section (B) is oppositely arranged with the cross bearer (2) in section of having set a roof beam in place (A)；
It is characterized in that, the docking facilities include:
First pair of drawing mechanism (3), one end for connect with the cross bearer (2) in section of having set a roof beam in place (A), the other end for to
Corresponding cross bearer (2) connection in section of setting a roof beam in place (B)；
Second pair of drawing mechanism (4), both ends are respectively used to be located at the middle part of the set a roof beam in place section (A), section to be set a roof beam in place (B)；
Top lifting mechanism (5) comprising lift up device (50)；The bottom of the lift up device (50) is used to be set to the section (B) to be set a roof beam in place
In wind up on (11), top is for being fixedly installed；The lift up device (50) is used in upward top lifting, pushes described wait set a roof beam in place
Section (B).
8. a kind of interconnection method of big segment steel truss girder, which is characterized in that the interconnection method passes through as described in claim 1
Docking facilities realize, the step of interconnection method includes:
Step 1: by section to be set a roof beam in place (B) all lower edges (12) in section of having set a roof beam in place (A) all lower edges (12) contraposition and it is right
It connects；
Step 2: thick to align using first pair of drawing mechanism (3) to the cross bearer (2) for drawing section to be set a roof beam in place (B) with having set a roof beam in place in section (A)
In section (B) to be set a roof beam in place to extension bar (140) with set a roof beam in place in section (A) to extension bar (140)；
Step 3: using second pair of drawing mechanism (4) to the middle part for drawing section to be set a roof beam in place (B) with section (A) that set a roof beam in place, exactitude position is simultaneously right
Reception set a roof beam in place in section (B) to extension bar (140) with set a roof beam in place in section (A) to extension bar (140)；
Step 4: using lift up device (50) upward top lifting in top lifting mechanism (5), pushing winding up in the section (B) to be set a roof beam in place
(11), align and dock it is described wind up (11), that is, complete the docking of big segment steel truss girder.
9. the interconnection method of big segment steel truss girder according to claim 8, which is characterized in that the specific step of the step 4
Suddenly include:
Step 401: reuse first pair of drawing mechanism (3) to the cross bearer (2) for drawing section to be set a roof beam in place (B) with having set a roof beam in place in section (A),
It slightly aligns winding up in section to be set a roof beam in place (B) (11) and winds up (11) in section (A) with having set a roof beam in place；
Step 402: using lift up device (50) upward top lifting in top lifting mechanism (5), pushing winding up in the section (B) to be set a roof beam in place
(11), exactitude position and (11) are winded up in section (A) with having set a roof beam in place to reception winding up in section (B) (11) of setting a roof beam in place.
10. the interconnection method of big segment steel truss girder according to claim 8, which is characterized in that first pair of drawing mechanism
It (3) include the first ear mount (31) that second pair of drawing mechanism (4) includes the second ear mount, and the top lifting mechanism (5) includes third ear
Seat (51)；The step 1 further include:
Before docking lower edge (12), first ear mount (31), the second ear mount, third ear mount (51) are preset in and have been set a roof beam in place
In section (A), section to be set a roof beam in place (B).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696451.6A CN110512521B (en) | 2019-07-30 | 2019-07-30 | Butt joint device and butt joint method for large-section steel truss girder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696451.6A CN110512521B (en) | 2019-07-30 | 2019-07-30 | Butt joint device and butt joint method for large-section steel truss girder |
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| CN110512521A true CN110512521A (en) | 2019-11-29 |
| CN110512521B CN110512521B (en) | 2021-06-29 |
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| CN113123250A (en) * | 2021-05-10 | 2021-07-16 | 南通帆森能源科技有限公司 | Precise assembling and adjusting device for steel truss girder and assembling construction method |
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