CN208995927U - Telescoping bracket and steel box-girder hanging device - Google Patents
Telescoping bracket and steel box-girder hanging device Download PDFInfo
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- CN208995927U CN208995927U CN201821448482.7U CN201821448482U CN208995927U CN 208995927 U CN208995927 U CN 208995927U CN 201821448482 U CN201821448482 U CN 201821448482U CN 208995927 U CN208995927 U CN 208995927U
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Abstract
The utility model discloses a kind of telescoping brackets, including girder, vertical diagonal brace and anchoring mechanism, the anchoring mechanism is used to be installed on the top of suspension bridge transition pier, the first end of the girder and the anchoring mechanism are hinged, girder can be in the retracted mode of side wall vertical with anchoring mechanism and close to suspension bridge transition pier, switch between the stretching state that the top surface of girder is flushed with the top surface of anchoring mechanism, the second end of girder and the first end of the vertical diagonal brace are hinged, the second end of the vertical diagonal brace is used to be detachably connected with the side wall of suspension bridge transition pier, the vertical diagonal brace can disengage connection with the side wall of suspension bridge transition pier and the retracted mode parallel with girder, it connect with the side wall of suspension bridge transition pier and switches between the inclined stretching state of girder.It can be realized temporary support steel box-girder by the telescoping bracket, and set up and the duration of Demolition Construction is shorter, use is more flexibly convenient.The invention also discloses a kind of steel box-girder hanging devices.
Description
Technical field
The utility model relates to suspension bridge steel box-girder lifting constructions, and in particular to telescoping bracket and steel box-girder hanging device.
Background technique
Steel box-girder suspension bridge is mainly made of Sarasota, anchorage, main push-towing rope, cord clip, hoist cable and steel box-girder, and multispan hangs suspension bridge also
Include transition pier.Wherein the segmented progress of steel box-girder is prefabricated, and prefabricated steel box girder segment is transported to construction site by transporting equipment
It is lifted, hoist cable corresponding thereto is attached, and hoist cable is hung on steel box-girder on main push-towing rope by cord clip, all steel of full-bridge
Box beam lifting is completed to carry out boxing connection between steel box girder segment again, and the formation of suspension bridge steel box-girder girder is realized with this.
Steel box-girder includes but is not limited to suspension bridge end bay first, second, three pieces steel box-girder at suspension bridge end bay transition pier.By
It is supported on the vertical support on transition pier crossbeam top in first steel box-girder one end, boxing between the other end and second steel box-girder
Connection (the equal rigging out rear of full-bridge steel box-girder is solderable), therefore first steel box-girder is connected without hoist cable.
Suspension bridge steel box-girder routine segment uses fortune beam ship to transport from precast plant to corresponding from bridge location area waters substantially
Lifting point position recycles deck unit erection gantry (also referred to as deck erection gantry) to lift steel box girder segment to target after the completion of positioning of casting anchor
It is attached after height with corresponding hoist cable.After the completion of a piece of steel box girder segment lifting, deck unit erection gantry is moved up in main rope of suspension bridge
Position to next scheduled Hoisting Position, with method carry out down a piece of steel box girder segment lifting and with the steel box girder segment that has lifted
It is temporarily connected and (is connected using high-strength bolt, detachable), by the rest may be inferred.
The first steel box girder segment is end carriage at end bay transition pier, and is hung for no hoist cable to it, the steel box girder segment
State after the completion of full-bridge steel box-girder installation are as follows: one end is supported on the vertical support on transition pier crossbeam top, the other end
Boxing is connect between second steel box-girder.Due to the particularity of the first steel box girder segment at transition pier, there are the following problems is needed
It solves:
First, the first steel box-girder lift to design position after without effectively supporting structure, it is necessary to take measures to give interim branch
It holds；
Second, due between transition pier pier shaft and lateral wind-resistant support pinner position conflict, the first steel box girder segment
It can not vertical lifting, it is necessary to lean against the position lifting deviateed at floor projection；
Third, the first steel box girder segment is lifted to design height, at this time deck unit erection gantry lifting steel strand wires active length compared with
It is short, and the height between steel strand wires and transition pier is lower, therefore can not be in place by swinging shifting at top.
It four, can not be directly by the first steel box-girder section, the second steel using fortune beam ship when transition pier pier shaft is in phytal zone
The transports such as box beam section, third steel box-girder section are (transport is extremely and under corresponding design position) in place.
In order to solve the above technical problems, the conventional hoisting of steel box-girder is mainly floor stand at suspension bridge transition pier
Method and the direct lift-on/lift-off system of crane barge.
The direct lift-on/lift-off system simple process of crane barge, but it is more demanding to the depth of water in operation waters, shallow water is located at for transition pier
The case where area (shoal area), if carry out dredging so that the depth of water meet crane barge drinking water demand, first put into and more very much not have economy,
Second do not allow to carry out dredging operation substantially close to the region of embankment.In addition, the lifting weight of steel box girder segment to be hung and transition
The factors such as the height of pier determine the Lifting Capacity requirement of used crane barge, biggish for large-scale suspension bridge or transition pier height
High to the Lifting Capacity requirement of crane barge for suspension bridge, crane barge directly hangs method and is not suitable for substantially.
Phytal zone steel box-girder is lifted, can not dredging in the case where, floor stand method is the most conventional and universal
Hoisting.
As shown in figure 22, conventional floor stand method technique as the temporary support of box beam and is indulged using landing steel pipe support
To movement platform.Bracket need to set up to the depth of water region for meeting fortune beam shipping work, that is, the transverse direction of bracket need to be from close to mistake
Cross pier pier shaft extend to the depth of water can satisfy fortune beam shipping work region, while also need to meet deck unit erection gantry from fortune beam ship on
The requirement for moving and falling on bracket is swung again after hanging steel box-girder to design height, that is, the height of bracket need to be with the height of transition pier pier shaft
Spend equal, set forth above four can be solved the problems, such as by meeting the two conditions.Conventional floor stand one as shown in figure 22
As length reach 40-50m, height 45-50m, set up such bracket timbering material and it is artificial it is equal put into it is larger, economy compared with
Difference., and the duration is longer, and consuming is much set up and the take-down time, influences whole working efficiency.
Utility model content
For overcome the deficiencies in the prior art, one of the purpose of this utility model is to provide a kind of telescoping bracket, can
It realizes temporary support steel box-girder, and sets up and the duration of Demolition Construction is shorter, use is more flexibly convenient.
The two of the purpose of this utility model are to provide a kind of steel box-girder hanging device, are located at suspension bridge end bay transition pier
Vertical lifting steel box girder segment can be directly carried out when phytal zone in place.
One of the purpose of this utility model adopts the following technical scheme that realization:
Telescoping bracket, including girder, vertical diagonal brace and anchoring mechanism, the anchoring mechanism is for being installed on suspension bridge mistake
The top of pier is crossed, the first end of the girder and the anchoring mechanism are hinged, and the of the second end of girder and the vertical diagonal brace
One end is hinged, and the second end of the vertical diagonal brace is used to be detachably connected with the side wall of suspension bridge transition pier, girder can with anchor
Gu the retracted mode of the side wall of the vertical and close suspension bridge transition pier of mechanism, the top surface of girder are flushed with the top surface of anchoring mechanism
Stretching state between switch, to form the avoiding space or temporary support steel box girder segment of steel box girder segment.
It further, further include horizontal bracing, the first end of horizontal bracing is used to rotate with the top of suspension bridge transition pier
Connection, the second end of horizontal bracing are detachably connected with the girder, and horizontal bracing can disengage the connection with girder and be located at
Switch between retracted mode in the top of suspension bridge transition pier, the stretching state for connecting with girder and being obliquely installed with girder.
It further, further include the vertical shift mechanism for being set to the top surface of telescoping bracket, vertical shift mechanism is for existing to steel box-girder
It is supported on telescoping bracket and vertical shift.
Further, the vertical shift mechanism includes track, sliding block and power source, and one of track is set to the top surface of girder,
Another road track is set on anchoring mechanism, and sliding block is slidably matched with track, what power source was used to slide to sliding block offer along track
Power.
Further, the power source includes continuous jack, vertical shift steel strand wires and jack reaction frame, described very heavy
The top surface that reaction frame is set to anchoring mechanism is pushed up, the continuous jack is set to the Analysis of Suspension Bridges ' Anchorage side of jack reaction frame, vertical shift
The both ends of steel strand wires are connect with continuous jack, sliding block respectively.
Further, the power source is hoist engine or chain block, and hoist engine or chain block are connect with sliding block.
Further, the anchoring mechanism includes anchoring bracket and reverse drawing bracket, and anchoring bracket is installed on transition pier cross
Back leans on Suspension Bridge Tower side, and reverse drawing bracket is installed on transition pier crossbeam and abuts against Analysis of Suspension Bridges ' Anchorage side, anchoring bracket and reverse drawing ox
Leg is connected, and the first end and anchoring bracket of the girder are hinged.
Further, leveling layer is provided between the anchoring bracket and reverse drawing bracket, leveling layer is located at suspension cable bridge transition
The top of pier.
The two of the purpose of this utility model adopt the following technical scheme that realization:
Steel box-girder hanging device, including above-mentioned telescoping bracket, fortune beam trestle and deck unit erection gantry, deck unit erection gantry is used for steel
Box girder segment lifts to fortune beam trestle or for lifting the steel box girder segment being located on fortune beam trestle to suspension bridge transition pier
Top, it is described fortune beam trestle close to suspension bridge transition pier side wall be arranged, the fortune beam trestle for steel box girder segment into
Row temporary support and keep steel box girder segment in place.
Compared with prior art, the utility model has the beneficial effects that:
1, it by making anchoring mechanism be installed on the top of suspension bridge transition pier, realizes and telescoping bracket is fixed on suspension bridge mistake
It crosses on pier, keeps the first end of girder and anchoring mechanism hinged, realize rotation of the girder relative to anchoring mechanism, girder is enable to exist
Vertical with the anchoring mechanism and retracted mode of side wall and the top surface of girder and anchoring mechanism close to suspension bridge transition pier
Switch between the stretching state that top surface flushes, and keep the second end of girder and the first end of vertical diagonal brace hinged, realizes vertical oblique
The rotation relative to girder is supportted, and the second end of vertical diagonal brace is used to be detachably connected with the side wall of suspension bridge transition pier, is convenient for
Vertical diagonal brace directly connect and disconnects with the side wall of suspension bridge transition pier, so make vertical diagonal brace can with suspension bridge
The side wall of transition pier disengage connection and the retracted mode parallel with girder and connect with the side wall of suspension bridge transition pier and with master
Switch between the inclined stretching state of beam, when girder and vertical diagonal brace are in corresponding stretching state, girder, it is vertical tiltedly
Support and suspension bridge transition pier three form stable triangle force structure in vertical plane, realize that steel box girder segment is more firm
Temporary support, and when girder and vertical diagonal brace are in corresponding retracted mode, telescoping bracket can concede other steel
The lifting space of box girder segment, compared with the existing technology used in interim branch of the routine floor stand as steel box girder segment
Support, telescoping bracket need to only use three girder, vertical beam diagonal brace and anchoring mechanism components to can be realized and face steel box girder segment
When support, consumptive material is few, and the setting up of telescoping bracket, dismantle that construction is relatively simple, therefore telescoping bracket is set up, dismantles construction
Duration it is shorter, human input, thus better economy can be greatlyd save, and telescoping bracket can be in the state of stretching and contracting
It is switched between the state of returning, use is more flexibly convenient.
2, the in place of steel box girder segment is realized by using fortune beam trestle, and combines deck unit erection gantry and telescoping bracket
It uses, and temporary support and vertical shift is carried out to steel box girder segment using telescoping bracket, solve positioned at suspension bridge transition pier
End carriage (the first steel box girder segment) without temporary support and vertical shift in place the problem of, and realize and make suspension bridge end bay transition pier position
Lifting steel box girder segment can directly be carried out in place when phytal zone, compared with the existing technology used in routine floor stand,
It is whole to set up, it is relatively simple to dismount, it is thus possible to and a large amount of manpowers are saved, the whole duration set up, dismounted is saved, because
And its whole economy is more preferable, more conducively promotes and applies.
Detailed description of the invention
Fig. 1 is the side view under the utility model patent telescoping bracket stretching state；
Fig. 2 is the side view under the utility model patent telescoping bracket retracted mode；
Fig. 3 is 1/2 top view under the utility model patent telescoping bracket stretching state；
Fig. 4 is the utility model patent telescoping bracket girder side structure schematic view；
Fig. 5 is the vertical diagonal brace overlooking structure diagram of the utility model patent telescoping bracket；
Fig. 6 is the utility model patent telescoping bracket anchoring mechanism side structure schematic view；
Fig. 7 is the partial structural diagram at the utility model patent telescoping bracket pin groove built-in fitting；
Fig. 8 is the support of the utility model patent telescoping bracket and vertical shift steel box girder segment schematic diagram；
Fig. 9 is steel box-girder vertical shift mechanism drawing on the utility model patent telescoping bracket；
Figure 10 is that the utility model patent transports beam trestle cross-sectional configuration figure；
Figure 11 is the schematic diagram that steel box girder segment is deposited on fortune beam trestle；
Figure 12 is the schematic diagram for lifting by crane the first steel box girder segment；
Figure 13 is the schematic diagram that telescoping bracket stretches out after the first steel box girder segment is promoted in place；
Figure 14 is that the first steel box girder segment transfers the schematic diagram being supported on telescoping bracket；
Figure 15 is the first steel box girder segment schematic diagram that vertical shift is kept in transition pier top on telescoping bracket；
Figure 16 is that telescoping bracket retracts and lifts by crane the schematic diagram of the second steel box girder segment；
Figure 17 is the schematic diagram that the second steel box girder segment promotes predetermined altitude；
Figure 18 is second of schematic diagram stretched out of telescoping bracket；
Figure 19 is the schematic diagram that remaining steel box girder segment lifting is completed；
Figure 20 be the first steel box girder segment on telescoping bracket vertical shift to design position schematic diagram；
Figure 21 is the schematic diagram that steel box-girder lifting is completed；
Figure 22 is the structural schematic diagram of floor stand in the prior art.
In figure: 1, telescoping bracket；101, girder；102, vertical diagonal brace；103, horizontal bracing；104, bracket is anchored；105,
Reverse drawing bracket；106, fining twisted steel is anchored；106a, top anchor fining twisted steel；106b, bottom anchor fining twisted steel；
107, pin groove built-in fitting；108, leveling layer；109, pin shaft；109a, girder pin shaft；109b, vertical diagonal brace ejector pin axis；109c,
Vertical diagonal brace bottom pin shaft；109d, horizontal bracing pin shaft；110, horizontal bracing column spinner；2, beam trestle is transported；201, bury steel pipe
Stake；202, shellfish thunder girder；203, fashioned iron track girder；3, steel box girder segment；301, the first steel box girder segment；302, the second steel box-girder
Segment；303, third steel box girder segment；304, the 4th steel box girder segment；305, the 5th steel box girder segment；4, vertical shift mechanism；401,
Track；402, sliding block；403, continuous jack；404, vertical shift steel strand wires；405, jack reaction frame；5, deck unit erection gantry；501,
Loop wheel machine main body；502, suspender；503, steel strand wires are promoted；6, beam ship is transported；7, transition pier；8, rope-suspension bridge cable system；801, main push-towing rope；
802, cord clip；803, hoist cable；9, main bridge vertical support.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the utility model, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
The telescoping bracket 1 of the technical program is installed on 7 top of suspension bridge transition pier, is symmetrically installed cloth according to bridge central axes
2 are set, telescoping bracket 1 is divided into two states after being installed, respectively stretching state and retracted mode.Single telescoping bracket 1
Structure by girder 101, for vertical supporting girder 101 vertical diagonal brace 102, for horizontally-supported girder 101 level tiltedly
Support 103, the anchoring mechanism including anchoring bracket 104 and reverse drawing bracket 105, anchoring fining twisted steel 106, pin groove built-in fitting
107, totally 10 class components form for leveling layer 108, pin shaft 109 and horizontal bracing column spinner 110 etc..
The telescoping bracket 1 of the technical program connection relationship between each component in the extended state are as follows:
Such as Fig. 1-Fig. 2, anchoring bracket 104 is installed on 7 crossbeam of suspension bridge transition pier and abuts against Suspension Bridge Tower side, reverse drawing bracket
105, which are installed on 7 crossbeam of suspension bridge transition pier, abuts against Analysis of Suspension Bridges ' Anchorage side, such as Fig. 6, anchors bracket 104 with reverse drawing bracket 105 suitable
Bridge is mounted on a straight line with bridge axis parallel to correspondence, is anchored and is passed through anchor between bracket 104 and reverse drawing bracket 105
Gu 106 pairs of fining twisted steel drawings are tightly connected in advance so that anchoring bracket 104 and reverse drawing bracket 105 between connection it is more firm,
Reliably.Wherein, by top anchor fining twisted steel 106a to fixation is drawn, bottom passes through bottom anchor fining twisted steel at top
The preformed hole that 106b passes through on 7 crossbeam of transition pier fix to drawing；Wherein, the anchoring mechanism of telescoping bracket 1 can be embedded in
In transition pier 7, in the case, 1 structure of telescoping bracket can be not provided with anchoring fining twisted steel 106 and reverse drawing bracket 105.
Such as Fig. 2 or Fig. 7, pin groove built-in fitting 107 is pre-buried to be installed on the (side of suspension bridge transition pier 7 of suspension bridge transition pier 7
Wall) pier stud lean on Sarasota side；
As shown in figure 3, horizontal bracing column spinner 110 be installed on 7 cross rail top of suspension bridge transition pier and with suspension cable bridge transition
The consolidation connection of pier 7, to realize consolidating between horizontal bracing column spinner 110 and suspension bridge transition pier 7, be reliably connected；
Such as Fig. 1, Fig. 4 and Fig. 5, between 101 end of girder (first end) and anchoring bracket 104 by girder pin shaft 109a into
Row connection, 101 root edge of girder (second end) are connected with vertical diagonal brace 102 (first end) by vertical diagonal brace ejector pin axis 109b
It connecing, vertical 102 bottom of diagonal brace (second end) is attached with pin groove built-in fitting 107 by vertical diagonal brace bottom pin shaft 109c, with
Realize rapid-assembling/disassembling, when telescoping bracket 1 is in stretching state, girder 101 is in what its top surface was flushed with the top surface of anchoring mechanism
Stretching state, meanwhile, vertical diagonal brace 102 be in connect with the side wall of suspension bridge transition pier 7 and with the inclined stretching shape of girder 101
State makes suspension bridge transition pier 7, girder 101 and vertical diagonal brace 102 form a stable triangle stress knot on perpendicular
Structure, to realize the temporary support of steel box girder segment 3；
Referring to Fig. 3, girder 101 is attached with horizontal bracing 103 (second end) by horizontal bracing pin shaft 109d, with reality
Being detachably connected between existing girder 101 and horizontal bracing 103, it is convenient to dismount, and horizontal bracing 103 (first end) is installed on level
It can be freely rotated on diagonal brace column spinner 110 and around it, horizontal bracing 103 is made to connect with girder 101 and set with the inclination of girder 101
The stretching state set, when girder 101 and vertical diagonal brace 102 are in corresponding stretching state, transition pier 7, girder 101 and
Horizontal bracing 103 forms a stable three-legged structure in the horizontal plane, is further reinforced in the horizontal plane to girder with realizing
101 supporting role；
7 cross rail top area of suspension bridge transition pier referring to Fig. 1 and Fig. 2, between anchoring bracket 104 and reverse drawing bracket 105
Domain and anchoring 104 top area of bracket arrange leveling layer 108, so that the top surface of anchoring mechanism is formed a plane, are convenient for steel case
The vertical shift of girder segment 3, when girder 101 is in stretching state, the plane flushed with the top surface of girder 101 (namely the plane with
The top surface of girder 101 is in same level).
Connection relationship of the telescoping bracket 1 of the technical program between component each under retracted mode is substantially and in the state of stretching
Under it is consistent, there are following two differences:
Referring to fig. 2, it is not connected between horizontal bracing 103 and girder 101, horizontal bracing 103 is around horizontal bracing column spinner 110
It rotates and is in the connection disengaged with girder 101 to 7 crossbeam top of transition pier namely horizontal bracing 103 and is located at suspension bridge transition pier 7
Top in retracted mode；
For the fast assembling-disassembling for realizing vertical beam diagonal brace 102 and girder 101, vertical 102 top of diagonal brace passes through perpendicular with girder 101
To diagonal brace ejector pin axis 109b connection, girder 101 is hung on anchoring bracket 104 namely at girder 101 by girder pin shaft 109a
In the retracted mode of side wall vertical with anchoring mechanism and close to suspension bridge transition pier 7, vertical diagonal brace 102 passes through vertical diagonal brace
Ejector pin axis 109b is hung on girder 101, namely vertical diagonal brace 102 is in and disengages connection simultaneously with the side wall of suspension bridge transition pier 7
The retracted mode parallel with girder 101.By switching over girder 101 between stretching state and retracted mode, can be convenient for
Form the avoiding space or interim branch of steel box girder segment 3 (being herein the first steel box girder segment 301 or the second steel box girder segment 302)
It supports steel box girder segment 3 (being herein the first steel box girder segment 301), and then plays 3 vertical lifting of steel box girder segment either and face
When support steel box girder segment 3 effect.
It as can be seen from figures 8 and 9, is the vertical shift and support convenient for the first steel box girder segment 301, on 1 top surface of this telescoping bracket
Arrangement vertical shift mechanism 4 is supported on telescoping bracket 1 for the first steel box girder segment 301 and vertical shift.Vertical shift mechanism 4 is by track
401, sliding block 402 and the power source composition of driving 3 vertical shift of steel box girder segment, power source are connect with sliding block 402, and power source can wrap
Continuous jack 403, vertical shift steel strand wires 404 and jack reaction frame 405 are included, certainly, power source can also be hoist engine or pull
Cucurbit, hoist engine or chain block are connect with sliding block 402, and sliding block 402 can also be used crawler type body transporting unit to substitute.
Specifically, track section 401 is fixedly welded between two parties on 101 top surface of girder of telescoping bracket 1, another track section
401 are fixedly welded on 108 top surface of leveling layer of telescoping bracket 1 between two parties；Welding is laid with stainless steel plate slip layer on track 401,
Tetrafluoro plate is arranged in stainless steel plate slip layer, to reduce frictional resistance, and sliding block 402 is placed on tetrafluoro plate；Jack is anti-
Power frame 405 is fixedly welded on 1 reverse drawing bracket of telescoping bracket, 105 top surface, and continuous jack 403 is arranged in jack reaction frame 405
Analysis of Suspension Bridges ' Anchorage side, vertical shift steel strand wires 404 are passed through continuous jack 403 and reserving hole channel on sliding block 402 and are twisted using steel
Line anchor plate and fixture are anchored.
The working principle of the telescoping bracket 1 of the utility model and the vertical shift mechanism 4 being mounted thereon is:
As shown in figure 12, under 1 retracted mode of telescoping bracket, girder 101 and vertical diagonal brace 102 are to hang state from above, benefit
Lift girder 101 to more slightly higher than horizontal position with hanging devices such as such as crawler cranes, then again above mentions vertical diagonal brace 102 and in master
It is turned to around vertical diagonal brace ejector pin axis 109b close to pin groove built-in fitting 107 and slightly higher position on beam 101, it slowly will be vertically oblique
It supports 102 bottom pin shafts 109 to fall into 109 slot of opening pin shaft of pin groove built-in fitting 107, that is, completes telescoping bracket 1 vertical
The formation of triangle force structure in plane.It on this basis, is the Out-of-plane Stability for enhancing telescoping bracket 1, by horizontal bracing
103 rotate around horizontal bracing column spinner 110 to girder 101, are connect meticulously by horizontal bracing pin shaft 109d with girder 101,
Telescoping bracket 1 is completed from retracted mode to the system transform of the state of stretching.Flexible support can be completed by opposite step
System transform of the frame 1 from the state of stretching to retracted mode, dismounting and use are more convenient.
Referring to Figure 13, under 1 stretching state of telescoping bracket, i.e., under the working condition of telescoping bracket 1, by vertical shift mechanism 4
Each component is in place in 1 top surface of telescoping bracket arrangement, and deck unit erection gantry 5, which has lifted, at this time promotes the first steel box girder segment 301 to pre-
Calmly highly, then the first steel box girder segment 301 is slowly transferred on the sliding block 402 of vertical shift mechanism 4 and spot welding is fixed, starting is continuous
Jack 403 pulls the sliding block 402 on track 401 by vertical shift steel strand wires 404, drives the first steel box girder segment 301 toward suspension cable
Bridge anchorage side carries out vertical shift, when 402 vertical shift of sliding block under the first steel box girder segment 301 to the track 401 for being detached from 101 top surface of girder
Range when, telescoping bracket 1 has the condition converted from stretching state to retracted mode at this time.
The second purpose of the utility model patent is to provide a kind of steel box-girder hanging device including telescoping bracket 1, the steel
Box beam hanging device is able to solve at current suspension bridge transition pier 7 steel box-girder lifting using conventional floor stand method steel and artificial
Investment is greatly, bracket is set up and the duration of Demolition Construction longer problem, and solves suspension bridge transition pier 7 when being located at phytal zone
The problem of fortune beam ship 6 can not be lifted directly in place, there is 1 structure of telescoping bracket can carry out flexible system transform, structure
Stress is safe and reliable, steel and manually puts into the advantages that low, speed of application is fast, applicability is wide.
Referring to Figure 10 and Figure 11, in order to achieve the above objectives, the steel box-girder lifting proposed by the utility model patent is set
The standby application including the devices such as telescoping bracket 1, fortune beam trestle 2, vertical shift mechanism 4, deck unit erection gantry 5 and fortune beam ship 6 and equipment, wherein
Fortune beam ship 6 is used to transport steel box girder segment 3 to the waters by transporting 2 end of beam trestle, and deck unit erection gantry 5 will be for that will be located at fortune beam ship 6
On steel box girder segment 3 lifting of the lifting of steel box girder segment 3 to fortune beam trestle or for that will be located on fortune beam trestle to suspension cable
The top of bridge transition pier 7, fortune beam trestle 2 are arranged close to the side wall of suspension bridge transition pier 7, and fortune beam trestle 2 is used for steel box girder section
Section 3 carries out temporary support and keeps steel box girder segment 3 (even if also each steel box girder segment 3 is located at below corresponding suspension centre) in place, leads to
Being used cooperatively for telescoping bracket 1, fortune beam trestle 2, vertical shift mechanism 4, deck unit erection gantry 5 and fortune beam ship 6 is crossed, suspension bridge is efficiently solved
Transport problem in place, the vertical lifting problem of the first steel box girder segment 301 of shallow water zone position steel box girder segment 3 at transition pier 7
And first steel box girder segment 301 temporary support and vertical shift problem, human input is greatly saved, has saved cost, by
It is big in the big weight of 3 volume of steel box girder segment, by the use of telescoping bracket 1, (the first steel box girder section of steel box girder segment 3 can be made
The 301, second steel box girder segment 302 of section) vertical lifting, be conducive to the lifting stroke for shortening steel box girder segment, and then be conducive to subtract
The lifting risk of small steel box girder segment 3 guarantees construction safety.Certainly, steel box girder segment 3 is from unloading on fortune beam ship 6 to fortune beam stack
Large-scale floating crane substitution deck unit erection gantry 5 can be used on bridge 2.
The technical solution of the utility model patent is achieved in that
Suspension bridge transition pier 7 is constructed, and the pin groove that telescoping bracket 1 is carried out when suspension bridge 7 concrete construction of transition pier is pre-buried
The pre-buried installation of part 107, the corresponding installation notch of anchoring bracket 104 reserved, bottom anchor fining twisted steel 106b duct it is pre-
It stays, and carries out the pre-buried installation of 110 bottom mounting plate of horizontal bracing column spinner in 7 crossbeam top surface of transition pier；
Suspension bridge transition pier 7 by Sarasota side Sub-aqua area on set up fortune beam trestle 2 (fortune beam trestle 2 set up length and
Structure type can be adjusted according to practice of construction situation), installation is laid with track 401 on 401 beam of fashioned iron track of fortune beam trestle 2,
According to scheduled location arrangements sliding block 402；
In each component of the predetermined position installation telescoping bracket 1 at 7 top of suspension bridge transition pier, and pacify on telescoping bracket 1
Each respective members of dress vertical shift mechanism 4 after the installation is completed convert telescoping bracket 1 to stretching state from retracted mode, errorless
Afterwards, reconvert is to retracted mode；It is the girder of telescoping bracket, vertical it is understood that when telescoping bracket 1 is in stretching state
Diagonal brace and horizontal bracing are in corresponding stretching state, and when telescoping bracket 1 is in retracted mode, the master of telescoping bracket
Beam, vertical diagonal brace and horizontal bracing are in corresponding retracted mode.
It transports beam ship 6 and transports steel box girder segment 3 to the waters by transporting 2 end of beam trestle, deck unit erection gantry 5 is in main rope of suspension bridge
The predetermined position that fortune beam trestle 2 leans on Sarasota side end is run on 801, is released and is promoted steel strand wires 503, transfers suspender 502, suspender
502 connect with the interim lifting lug on steel box girder segment 3, are swung after steel box girder segment 3 is lifted to predetermined altitude and move to Yun Liang
On sliding block 402 on trestle 2, by 3 vertical shift of steel box girder segment on the track 401 on fortune beam trestle 2 vertical shift to predetermined position, according to
Secondary will include but is not limited to the first steel box girder segment 301, the second steel box girder segment 302, third steel box girder segment 303, the 4th steel
Box girder segment 304, the unloading of the 5th steel box girder segment 305 are transferred on fortune beam trestle 2 and vertical shift (Figure 11) (vertical shift to correspondence in place
Suspension centre below)；
Loop wheel machine main body 501 runs to the surface position of the predetermined lifting point of the first steel box girder segment 301 on main push-towing rope 801
It sets, further to lifting point position, deck unit erection gantry 5 lifts by crane and promotes the first steel box girder segment 301 for vertical shift on fortune beam trestle 2
One steel box-girder (Figure 12) to telescoping bracket 1 top face；
After first steel box-girder is promoted to predetermined altitude, by telescoping bracket 1 from retracted mode system transform to the state of stretching, with
Enable 101 the first steel box girder segment of temporary support 301 of girder, by the sliding block 402 of the vertical shift mechanism 4 on telescoping bracket 1, indulges
It is (Figure 13) in place to move the installations such as jack, vertical shift steel strand wires 404；
Deck unit erection gantry 5 will be in the first steel box girder segment 301 decentralization to the sliding block 402 for being arranged in 1 top of telescoping bracket and even
Meet fixed (Figure 14)；
By vertical shift mechanism 4 by the first steel box girder segment 301 on telescoping bracket 1 vertical shift to 7 pier top position of transition pier into
Row is temporary, it is desirable that 402 vertical shift of sliding block under the first steel box girder segment 301 is extremely detached from the range of the track 401 of 101 top surface of girder
(Figure 15)；
Telescoping bracket 1 is retracted mode from state system transform is stretched out, and to form avoiding space, namely concedes the second steel case
The lifting room for promotion of girder segment 302 so that the second steel box girder segment 302 can vertical lifting, deck unit erection gantry 5 runs to second
The position directly above of 302 lifting point of steel box girder segment, at 302 vertical shift to lifting point of the second steel box girder segment, deck unit erection gantry 5 is lifted
Promote the top face of the second steel box girder segment 302 (Figure 16) to telescoping bracket 1；
Second steel box girder segment 302 is promoted to predetermined altitude, to concede the operating space (figure of 1 system transform of telescoping bracket
17)；
By telescoping bracket 1 from retracted mode system transform be stretching state, decentralization the second steel box girder segment 302 to design mark
The corresponding hoist cable 803 of Gao Bingyu rope-suspension bridge cable system 8 connects (Figure 18), and the hoist cable 803 is connected to by cord clip 802
On main push-towing rope 801；
Lift the remaining steel box girder segment 3 of suspension bridge, such as third steel box girder segment 303, the 4th steel box girder segment 304
Deng until all steel box girder segments 3 of full-bridge, which lift, completes (Figure 19)；
First steel box girder segment 301 on telescoping bracket 1 vertical shift to design position (Figure 20)；
After suspension bridge limits the installation of hoist cable 803 and tensioning, by the first steel box girder segment 301 and the second steel box girder segment 302
It is temporarily connected, the other end of the first steel box girder segment 301 and the main bridge vertical support 9 of suspension bridge is attached, completed complete
Bridge steel box-girder lifting construction removes the temporary structures such as telescoping bracket 1 and fortune beam trestle 2 and device (Figure 21).
Second steel box girder segment 302 needs separately to set interim balance hoist cable 803 connection after connecting with hoist cable 803, makes its maintenance
Posture balancing.
As shown in Figure 10, fortune beam trestle 2 is by the steel-pipe pile 201 that including but not limited to buries, shellfish thunder girder 202 and fashioned iron track
The equal components composition of beam 203.Fortune beam trestle 2 divides left and right two breadths of cloth to set, between two width and with Suspension Bridge Tower construct main trestle it
Between can set auxiliary trestle, for the channel and job platform of the construction machineries such as crawler crane and equipment, with the design of luck beam trestle 2
Width also considers the passage and operation of the equipment such as crawler crane.
The design width for transporting beam trestle 2 can not consider that lifting is set in the case where admission operation in small-sized crane barge and pile driving barge
Standby passage and job requirements.
Deployment rails 401 on 401 beam of fashioned iron track of beam trestle 2 are transported, welding installation stainless steel plate on track 401, with not
Steel plate become rusty as slip layer, arranges tetrafluoro plate thereon, sliding block 402 is arranged on tetrafluoro plate.
Vertical shift power of the steel box girder segment 3 on fortune beam trestle 2 is hoist engine, and hoist engine cooperates tackle pulley to use.
To sum up, solve the problems, such as that phytal zone steel box-girder is in place using the hanging method of the technical program, can not
Crane barge directly lift also be not available deck unit erection gantry 5 swing shifting it is in place in the case where, realize to no hoist cable end carriage (the first steel
Box girder segment 301) temporary support；The scope of application is wider, is applicable to various depth of water situations at suspension bridge end bay transition pier 7；
Sufficient utilization has been carried out to deck unit erection gantry 5, has saved the equipment investment for carrying out steel box-girder unloading using large-scale floating crane.
Above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacement belong to
In the utility model range claimed.
Claims (9)
1. telescoping bracket, which is characterized in that including girder, vertical diagonal brace and anchoring mechanism, the anchoring mechanism is for installing
In the top of suspension bridge transition pier, the first end of the girder and the anchoring mechanism are hinged, and the second end of girder is erected with described
First end to diagonal brace is hinged, and the second end of the vertical diagonal brace is used to be detachably connected with the side wall of suspension bridge transition pier, main
Beam can be in the retracted mode of side wall, the top surface of girder and anchoring mechanism vertical with anchoring mechanism and close to suspension bridge transition pier
The stretching state that flushes of top surface between switch, to form the avoiding space or temporary support steel box girder segment of steel box girder segment.
2. telescoping bracket as described in claim 1, which is characterized in that further include horizontal bracing, the first end of horizontal bracing is used
It is rotatablely connected in the top of suspension bridge transition pier, the second end of horizontal bracing is detachably connected with the girder.
3. telescoping bracket as described in claim 1, which is characterized in that further include the vertical shift machine for being set to the top surface of telescoping bracket
Structure, vertical shift mechanism is used to be supported steel box-girder on telescoping bracket and vertical shift.
4. telescoping bracket as claimed in claim 3, which is characterized in that the vertical shift mechanism includes track, sliding block and power
Source, one of track are set to the top surface of girder, and another road track is set on anchoring mechanism, and sliding block is slidably matched with track, power source
For providing the power slided along track to sliding block.
5. telescoping bracket as claimed in claim 4, which is characterized in that the power source includes continuous jack, vertical shift steel strand
Line and jack reaction frame, the jack reaction frame are set to the top surface of anchoring mechanism, and the continuous jack is set to very heavy
The Analysis of Suspension Bridges ' Anchorage side of reaction frame is pushed up, the both ends of vertical shift steel strand wires are connect with continuous jack, sliding block respectively.
6. telescoping bracket as claimed in claim 4, which is characterized in that the power source is hoist engine or chain block, elevator
Machine or chain block are connect with sliding block.
7. the telescoping bracket as described in any one of claim 3-6, which is characterized in that the anchoring mechanism includes anchoring bracket
And reverse drawing bracket, anchoring bracket are installed on transition pier crossbeam and abut against Suspension Bridge Tower side, reverse drawing bracket is installed on transition pier cross
Back leans on Analysis of Suspension Bridges ' Anchorage side, and anchoring bracket is connected with reverse drawing bracket, and the first end and anchoring bracket of the girder are hinged.
8. telescoping bracket as claimed in claim 7, which is characterized in that be provided with tune between the anchoring bracket and reverse drawing bracket
Leveling, leveling layer are located at the top of suspension bridge transition pier.
9. steel box-girder hanging device, which is characterized in that including telescoping bracket described in any one of claim 3-8, fortune beam stack
Bridge and deck unit erection gantry, deck unit erection gantry are used to lift steel box girder segment to fortune beam trestle or are used to be located on fortune beam trestle
Steel box girder segment is lifted to the top of suspension bridge transition pier, and the fortune beam trestle is arranged close to the side wall of suspension bridge transition pier, institute
Fortune beam trestle is stated to be used to carry out temporary support to steel box girder segment and keep steel box girder segment in place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821448482.7U CN208995927U (en) | 2018-09-05 | 2018-09-05 | Telescoping bracket and steel box-girder hanging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821448482.7U CN208995927U (en) | 2018-09-05 | 2018-09-05 | Telescoping bracket and steel box-girder hanging device |
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| Publication Number | Publication Date |
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| CN208995927U true CN208995927U (en) | 2019-06-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183620A (en) * | 2018-09-05 | 2019-01-11 | 广东省长大公路工程有限公司 | Telescoping bracket, steel box-girder hanging device and hanging method |
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2018
- 2018-09-05 CN CN201821448482.7U patent/CN208995927U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109183620A (en) * | 2018-09-05 | 2019-01-11 | 广东省长大公路工程有限公司 | Telescoping bracket, steel box-girder hanging device and hanging method |
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