CN208219384U - A kind of overlapping girder segment - Google Patents
A kind of overlapping girder segment Download PDFInfo
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- CN208219384U CN208219384U CN201721855514.0U CN201721855514U CN208219384U CN 208219384 U CN208219384 U CN 208219384U CN 201721855514 U CN201721855514 U CN 201721855514U CN 208219384 U CN208219384 U CN 208219384U
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Abstract
The utility model provides a kind of overlapping girder segment, it includes a pair of of edge-beam, several diaphragms being parallel to each other being connected among the pair of edge-beam, the orthogonal several stringers parallel with the edge-beam being erected above the diaphragm, and the edge-beam, diaphragm and stringer form main girder frame；It further include several prefabricated concrete bridge plates embedded in the main girder frame surface.The utility model structure is simple, easy for installation, reduces high altitude operation difficulty when bridge location is installed, accelerates lifting speed, short construction period, construction safety is reliable, and quality is high.
Description
Technical field
The utility model relates to steel structure bridge manufacturing technology field more particularly to a kind of overlapping girder segments.
Background technique
Currently, Partial Bridges mix composite beam form using the double hybrid steel-in rope face of double tower, girder end bay uses concrete edge
Girder form (π ellbeam), in the composite beam across the whole section using steel girder combination floorings, main girder frame is using an opposite side
Girder and several crossbeams and stringer are spliced, and connection type is high-strength bolt connection.Full-bridge girder steel is divided into the mixed knot of steel-altogether
Close section, standard knot, in across closure segment three types, alternately component is various for suspension cable installation and girder steel assembled, when installation
It is easy affected by environment.When carrying out the on-site consolidation of overlapping girder segment, assembled process is become by temperature, suspension cable and pontic
The factors such as shape are affected, and installation accuracy requires height, and working procedure is many and diverse, and difficulty of construction is relatively large.
Therefore, under the premise of how ensuring composite beam segmental construction safety, the on-site consolidation of overlapping girder segment is smoothly realized,
Become those skilled in the art's technical problem to be solved.
Utility model content
The utility model provides a kind of overlapping girder segment.
In a first aspect, the utility model provides a kind of overlapping girder segment comprising a pair of of edge-beam, be connected to it is the pair of
Several diaphragms being parallel to each other, orthogonal several be erected above the diaphragm and the side master among edge-beam
The stringer of Liangping row, the edge-beam, diaphragm and stringer form main girder frame；It further include embedded in the main girder frame surface
Several prefabricated concrete bridge plates.
Specifically, the edge-beam include the web with medial surface and lateral surface, it is vertical with the lower edge of the web
The bottom plate of connection, the panel, upper with the web connecting and extend to the lateral surface vertical with the top edge of the web
Half part vertically connects and to the top plate that the medial surface extends, and is arranged on the web medial surface and on the top
Diaphragm connecting assembly below plate.
Specifically, the diaphragm connecting assembly of each edge-beam includes in being arranged on the edge-beam symmetry axis
Connecting parts and the side connecting parts that the symmetrical two sides of middle connecting parts are set.
Preferably, it is described while connecting parts and when the distances of the middle connecting parts of Anterior Segment and this while connecting parts and neighbouring section
The distance of side connecting parts is identical.
Specifically, the front end portion of the edge-beam is also connected with anchored framework, the extending direction of the anchored framework from
It is directed toward Sarasota to be connected in the front end of the edge-beam.
Specifically, the diaphragm includes the direct side crossbeam connecting with the diaphragm connecting assembly, and connection is same
The middle cross beam of two side crossbeams on straight line.
Preferably, the stringer is above the diaphragm with equidistantly distributed.
Specifically, the prefabricated concrete bridge plate is embedded in the first panel frame that the edge-beam, diaphragm and stringer are enclosed
In frame, and in the second panel frame that the diaphragm and stringer are enclosed.
Compared with prior art, scheme provided by the utility model has the advantage that
1, the utility model provides a kind of overlapping girder segment comprising a pair of of edge-beam is connected to the pair of edge-beam
Several diaphragms being parallel to each other of centre, orthogonal several be erected above the diaphragm are parallel with the edge-beam
Stringer, the edge-beam, diaphragm and stringer form main girder frame；If further including intervening embedded in the main girder frame surface
Concrete bridge plate processed.Composite beam bay structural described in the utility model is simple, facilitates construction, and each coupling part of main body frame is
High-strength bolt connection, improves stability and the safety of structure.
2, the utility model provides a kind of on-site consolidation method of composite beam, combines Multiple factors, such as construction environment, fortune
The influence to composite beam work progress such as defeated road conditions and temperature, those factors of strict control apply construction bring difficulty
The precision of work is improved；This method shortens construction period, improves construction quality, and work progress is safe and reliable.
3, on-site consolidation can be completed using erection crane, removes the rental for saving lifting appliance using large-scale tower crane from
And use cost.
The additional aspect of the utility model and advantage will be set forth in part in the description, these will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The utility model is above-mentioned and/or additional aspect and advantage from the following description of the accompanying drawings of embodiments will
Become obvious and be readily appreciated that, in which:
Fig. 1 is a kind of composite beam bay structural schematic diagram of the utility model；
Fig. 2 is the anchored framework schematic diagram in a kind of overlapping girder segment of the utility model；
Fig. 3 is a kind of a kind of embodiment flow diagram of on-site consolidation method of overlapping girder segment of the utility model.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and cannot be construed to the utility model
Limitation.
Referring to Fig. 1, a kind of overlapping girder segment 1 provided by the utility model comprising a pair of of edge-beam 11 is connected to
If several diaphragms 12 being parallel to each other among the pair of edge-beam 11 orthogonal are erected at 12 top of diaphragm
The dry item stringer 13 parallel with the edge-beam 11, the edge-beam 11, diaphragm 12 and stringer 13 form main girder frame 14；Also
Several prefabricated concrete bridge plates 15 including being embedded in 14 surface of main girder frame.In the utility model embodiment, the edge-beam
11, the diaphragm 12 and the stringer 13 connect to form steel girder segment by high-strength bolt, set up the prefabricated concrete bridge plate
15, wet seam between the cast-in-place prefabricated concrete bridge plate 15, the WELDING STUDS by being welded in girder steel top surface forms composite beam system.
Specifically, the edge-beam 11 includes the web 111 with medial surface 1111 and lateral surface 1112 and the web
111 lower edge bottom plate 113 connected vertically vertical with the top edge of the web 111 is connect and to the lateral surface 1112
The panel 114 of extension, it is vertical with the top half of the web 111 connect and to the medial surface 1111 extend top plate 115,
And it is arranged on 111 medial surface 1111 of web and the diaphragm connecting assembly 112 below the top plate 115.
Further, the diaphragm connecting assembly 112 is used to position the side crossbeam 121 for assembling two sides, when assembling
Accurately to check the position of determining side crossbeam 121.The diaphragm connecting assembly 112 of each edge-beam 11 includes being arranged in institute
It states the middle connecting parts 1121 on 11 symmetry axis of edge-beam and the side connecting parts of the symmetrical two sides of the middle connecting parts 1121 is set
1122.It is described while connecting parts 1122 and when the distance of the middle connecting parts 1121 of Anterior Segment and this while connecting parts 1122 and neighbouring section
Side connecting parts 1122 distance it is identical, the spacing to guarantee each diaphragm 12 is identical.
Referring to FIG. 2, the front end portion of the edge-beam 11 is also connected with anchored framework in the utility model embodiment
18, the anchored framework 18 is by groups such as anchor tie plate 181, anchor plate 182, anchor end plate 183, stiffener 184 and cable spirals 185
At the web 111 of the anchor tie plate 181 and the edge-beam 11, which uses, to be welded to connect.The cable spiral 185 is embedded in
Add described in being respectively equipped with two in the anchor tie plate 181, at the cable spiral 185 and two contact surfaces of the anchor tie plate 181
Strength plate 184, the anchor plate 182 are welded in the low side of the cable spiral 185, and the anchor end plate 183 is welded in the drag-line
The extending direction on the top of conduit 185, the anchored framework 18 is directed toward Sarasota to be connected from the front end of the edge-beam 11.Institute
Stating anchored framework 18 is one of most important primary structure member.The web 111 of the anchored framework 18 and the edge-beam 11
Using welded connecting.
In the utility model embodiment, the anchored framework 18 has: steel plate is thick, melt-through weld is more, and required precision is high
Feature.For this feature, key points for operation and quality requirement to processes such as the scribing line of anchored framework 18, assembling, welding, finishings are all
Strict control is made, to guarantee the geometric dimension of anchored framework 18.Major measure is as follows:
One, accurate positioning: positioning of the anchored framework 18 on the web 111 of the edge-beam 11 is with anchor tube hole
On the basis of center, therefore 18 construction group of anchored framework draws plate unit center line and component assembling on the basis of being filled with guide hole center
Line, to ensure the accuracy of subsequent 18 tectonic location of anchored framework；
Secondly, group weldering when priority control described in anchor plate 181, the cable spiral 185 and 183 3 component of anchor end plate
Concentricity, with control two plate unit anchor holes concentricity.
Further, the diaphragm 12 includes the side crossbeam 121 directly connecting with the diaphragm connecting assembly 112,
With the middle cross beam 122 for connecting two side crossbeams 121 on same straight line.
The stringer 13 above the diaphragm 12 with equidistantly distributed, with guarantee from the edge-beam 11 of side to
The spacing of the edge-beam 11 of the other side is by 13 equal part of stringer.The prefabricated concrete bridge plate 15 is embedded in the edge-beam 11, cross
Every 16 in the first panel frame that beam 12 and stringer 13 are enclosed, and embedded in the second face that the diaphragm and stringer are enclosed
17 in plate framework.Since the spacing of aforementioned each diaphragm 12 is identical, the spacing of the edge-beam 11 of two sides is described
It is 13 equal part of stringer, the first panel frame 16 and the substantially the same shape of second panel money frame 17, of the same area, i.e.,
The prefabricated concrete bridge plate 15 is unified specification.
Referring to FIG. 3, the utility model also provides a kind of on-site consolidation method for overlapping girder segment, such as on-site consolidation
Overlapping girder segment described above in a kind of embodiment, includes the following steps:
S11, in the front end portion of the edge-beam, the matched anchored framework of tooling has been completed in welding；
The overall flow of the on-site consolidation of overlapping girder segment described in the utility model is as follows:
The composite beam can be divided into toughened internal stress A, standard segment B, in across closure segment C three types total 29
Beam section.Due to being limited by construction site, traffic condition etc., lifted just except toughened internal stress using tower crane in the overlapping girder segment
Position is outer, remaining standard segment and it is described in across closure segment closure segment be all made of erection crane dissipated at bridge location the process spelled into
Row installation.I.e. by being transported each component of the overlapping girder segment by erection crane to bridge floor, successively according to elder generation
The edge-beam for installing both sides, the order for installing 3 diaphragms, 9 stringers and 12 block concrete prefabricated bridges again are constructed.
Specifically, the specific implementation steps are as follows for the site welding of the edge-beam and anchor structure:
The composite beam is laid flat to bridge location scene moulding bed, is adjusted the web of the edge-beam to water using welding positioner
It is flat；
The side of the anchored framework and the web of edge-beam is subjected to penetration welding；
The edge-beam is turned over using loop wheel machine, makes the another side of the web upward；
The other side of the anchored framework and the web of edge-beam is subjected to penetration welding.
The web of the anchored framework and edge-beam sufficiently welds, to bear the traction force of suspension cable.
Referring to FIG. 2, in the utility model embodiment, the anchored framework 18 has that steel plate is thick, melt-through weld is more, precision
Demanding feature.For this feature, to the key points for operation and matter of the processes such as the scribing line of anchored framework 18, assembling, welding, finishing
Amount requires all to have made strict control, to guarantee the geometric dimension of anchored framework 18.Major measure is as follows:
One, accurate positioning: positioning of the anchored framework 18 on the web 111 of the edge-beam 11 is with anchor tube hole
On the basis of center, therefore 18 construction group of anchored framework draws plate unit center line and component assembling on the basis of being filled with guide hole center
Line, to ensure the accuracy of subsequent 18 tectonic location of anchored framework；
Secondly, group weldering when priority control described in anchor plate 181, the cable spiral 185 and 183 3 component of anchor end plate
Concentricity, with control two plate unit anchor holes concentricity.
S12, the edge-beam that a pair has connected anchored framework is lifted into the bridge floor using the erection crane set up
On the bottom basket of loop wheel machine, the edge-beam and mounted overlapping girder segment are subjected to location and installation using the bottom basket；
In the utility model embodiment, bridge on end bay beams of concrete is passed through by flat bed transport vehicle when the edge-beam is installed,
It is transported within the scope of the lifting of erection crane, starts cart walking mechanism to main truss after the hoisting overhead travelling crane lifting edge-beam of loop wheel machine
Front end is transferred to the edge-beam on the sliding rack of bottom basket system.
Specifically, the bottom basket, which is equipped with a pair of of three-dimensional, adjusts sliding rack, a pair of edge-beam is bundled in the sliding
Location and installation is carried out on frame.When two edge-beams are symmetrically placed after on sliding rack, using the horizontal jack that pushes away by two institutes
State that edge-beam connection sliding rack is symmetrical, synchronous pushing tow outward is to design position, it is then vertically very heavy by alternately jacking four
The elevation of top adjustment edge-beam, completes the initial adjustment to the edge-beam；Again using the three-way jack on the basket of bottom respectively to two
Edge-beam described in root carries out accurate adjustment, after the accurate adjustment and positioning of completing beam section mileage, axis and absolute altitude, is immediately inserted into 20% punching
It follows closely and 30% high-strength bolt replaces punching with high-strength bolt after review axis and absolute altitude meet design and code requirement one by one
Nail, and carry out the first of high-strength bolt and twist, so far complete the installation and adjustment work of the edge-beam.
In a kind of embodiment, edge-beam (containing anchor tie plate) the nearly 6m of total height, fortune when to be transported convenient for building-site
Defeated and safe, the edge-beam should be lain low when entrucking in storage space and be put to flat bed transport vehicle, be transported to bridge location bridge floor
It is sling behind the lifting region of loop wheel machine, hoisting and overturning again after flat bed transport vehicle exits.
Further, to prevent the edge-beam from lateral tilt occurs in traversing and adjustment position fixing process, sliding rack is removed
It is arranged outside left-hand thread mechanism on the basket diaphragm of bottom, edge-beam is also provided with left-hand thread device with sliding rack contact site to limit and fix
Girder steel.
S13, location and installation is assembled using the erection crane by the diaphragm integral lifting and after being turned
Between a pair edge-beam of completion；
The diaphragm includes the middle cross beam of two crossbeams in crossbeam and the described connection two, the side crossbeam and middle cross
It is bolted between beam.
In the utility model embodiment, the single diaphragm is divided into three sections of processing when designing, and passes through Gao Shuanxiang between each section
Connection, when the diaphragm is installed, the diaphragm is to be parallel to the direction of the edge-beam by handling to the erection crane
Medium position；Human assistance carries out 90 ° of rotations；Continue to be hoisted to position to be installed；Complete location and installation.Wherein, described
The assembled sequence of diaphragm is to side is closed up, i.e., for erection crane, the assembly of the diaphragm is sequentially by end bay side
From the near to the distant.
Specifically, needing the hoisting area for being first transported to its each section with flat bed transport vehicle erection crane when the diaphragm is installed
Domain, on bridge floor that three sections of splicings are integral using the tackling system of erection crane, cart of then walking is walked after being sling
To the middle part position of loop wheel machine truss, and human assistance completes 90 ° of rotations of the diaphragm, walk on and slowly decentralization extremely to
Installation site, chain block cooperation carry out the adjustment of vertical, horizontal position, and completion is docked with the edge-beam, install splice plate
It is just twisted with 20% punch and 30% high bolt afterwards and completes it and be fixed temporarily, the diaphragm installation is according to from the suitable of proximal end to distal end
Sequence successively carries out.
S14, the stringer lifted by crane section by section using the erection crane and location and installation is completed assembled in order
Between the diaphragm, the assembly of main girder frame is thus completed；
Stringer is installed using the tackling system of erection crane, its erection sequence is by end bay side to closing up when stringer is installed
Side；For the assembled sequentially for by the side master of the edge-beam of side to the other side of the stringer between two adjacent diaphragms
Beam, order carry out installation, it can by left-to-right, or by the right side to left.Also according to being first inserted into 20% when stringer is installed
Punch and 30% high-strength bolt are fixed temporarily, and are replaced one by one with high bolt again after single beam section whole stringer is installed in place
Punch and the first stubborn work for completing high bolt.
S15, after suspension cable is installed on the main girder frame, first time tensioning is carried out to the suspension cable；
In the utility model embodiment, the peace of suspension cable is carried out after each component of the composite beam installs and to form frame
Dress and first time tensioning, then install floorings with erection crane, and floorings carry out second of suspension cable after being installed
It draws, is anchored after erection crane Forward, into the installment work of next overlapping girder segment.
S16, after floorings are installed on the main girder frame, second of tensioning is carried out to the suspension cable；Thus complete
At the installation procedure of current overlapping girder segment.
Specifically, the floorings use prefabricated concrete bridge plate, connected between the prefabricated concrete bridge plate using wet seam.
The main frame assembly process of the current overlapping girder segment is synchronous with the previous overlapping floorings installation procedure of girder segment to be carried out,
That is the floorings wet wet stagnant the latter composite beam segmental construction of seam.Meanwhile second of tensioning of the suspension cable also lags one
The construction of a overlapping girder segment.
In conjunction with the above embodiments it is found that the maximum beneficial effect of the utility model is that the utility model provides one kind
Overlap girder segment comprising a pair of of edge-beam, several diaphragms being parallel to each other being connected among the pair of edge-beam,
The orthogonal several stringers parallel with the edge-beam being erected above the diaphragm.Composite beam section described in the utility model
Segment structure is simple, facilitates construction, and each coupling part is high-strength bolt connection, improves stability and the safety of structure.
A kind of on-site consolidation method overlapping girder segment provided by the utility model, for composite beam described above
Segment carries out on-site consolidation, and each component of composite beam is transported to the lifting region of erection crane, lifting system by dollie
Starting cart walking mechanism is along the sliding rack that main truss is placed in bottom basket system after system slings edge-beam, using setting on sliding rack
Horizontal jack, the vertical three-dimensional regulating system for pushing away jack and vertical jack composition of pushing away set carries out symmetrical accurate adjust to edge-beam
It is whole, complete edge-beam with matching between steel girder segment has been installed, dock, installation splice plate is simultaneously carried out with 10%~20% punch
Then interim anchoring installs diaphragm and stringer piece by piece with erection crane and carries out jury anchor and determines.Other components of girder steel can use bridge
The tackling system of face loop wheel machine is directly installed in place.The on-site consolidation method of overlapping girder segment described in the utility model, which is constructed, to be walked
Rapid succinct, to construction bring difficulty, the precision of construction is improved those factors of strict control；This method shortens construction
In the period, construction quality is improved, work progress is safe and reliable.
A kind of mobile terminal provided by the utility model is described in detail above, for the general skill of this field
Art personnel, based on the idea of the embodiment of the present invention, there will be changes in the specific implementation manner and application range, comprehensive
Upper described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. a kind of overlapping girder segment, which is characterized in that if it includes a pair of of edge-beam, is connected among the pair of edge-beam
Diaphragm that dry item is parallel to each other, the orthogonal several stringers parallel with the edge-beam being erected above the diaphragm,
The edge-beam, diaphragm and stringer form main girder frame；It further include several Prefabricated Concrete bridges embedded in the main girder frame surface
Panel.
2. overlapping girder segment as described in claim 1, which is characterized in that the edge-beam includes having medial surface and lateral surface
Web, with the lower edge of web bottom plate connected vertically, vertical with the top edge of the web connect and to described outer
Side extend panel, it is vertical with the top half of the web connect and to the medial surface extension top plate, and be arranged
Diaphragm connecting assembly on the web medial surface and below the top plate.
3. overlapping girder segment as claimed in claim 2, which is characterized in that the diaphragm connecting assembly packet of each edge-beam
Include the middle connecting parts being arranged on the edge-beam symmetry axis and the side connecting parts that the symmetrical two sides of middle connecting parts are set.
4. overlapping girder segment as claimed in claim 3, which is characterized in that the side connecting parts and the middle connecting parts when Anterior Segment
Distance with this while connecting parts and neighbouring section while connecting parts at a distance from it is identical.
5. overlapping girder segment as claimed in claim 2, which is characterized in that the front end portion of the edge-beam is also connected with anchor slab
The extending direction of structure, the anchored framework is directed toward Sarasota to be connected from the front end of the edge-beam.
6. overlapping girder segment as described in claim 1, which is characterized in that the diaphragm includes directly connecing with the diaphragm
Refute the middle cross beam of two side crossbeams on the side crossbeam of component connection, and the same straight line of connection.
7. overlapping girder segment as described in claim 1, which is characterized in that the stringer is above the diaphragm with equidistant
Distribution.
8. as described in claim 1 overlapping girder segment, which is characterized in that the prefabricated concrete bridge plate embedded in the edge-beam,
In the first panel frame that diaphragm and stringer are enclosed, and the second panel frame enclosed embedded in the diaphragm and stringer
In frame.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721855514.0U CN208219384U (en) | 2017-12-25 | 2017-12-25 | A kind of overlapping girder segment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721855514.0U CN208219384U (en) | 2017-12-25 | 2017-12-25 | A kind of overlapping girder segment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149560A (en) * | 2017-12-25 | 2018-06-12 | 中交路桥华南工程有限公司 | Overlap girder segment and its on-site consolidation method |
| CN111560846A (en) * | 2020-04-30 | 2020-08-21 | 中交路桥华南工程有限公司 | Method for mounting bridge deck system steel longitudinal and transverse beams |
| CN111560834A (en) * | 2020-04-30 | 2020-08-21 | 中交路桥华南工程有限公司 | Arch bridge steel longitudinal and transverse beam system |
-
2017
- 2017-12-25 CN CN201721855514.0U patent/CN208219384U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149560A (en) * | 2017-12-25 | 2018-06-12 | 中交路桥华南工程有限公司 | Overlap girder segment and its on-site consolidation method |
| CN111560846A (en) * | 2020-04-30 | 2020-08-21 | 中交路桥华南工程有限公司 | Method for mounting bridge deck system steel longitudinal and transverse beams |
| CN111560834A (en) * | 2020-04-30 | 2020-08-21 | 中交路桥华南工程有限公司 | Arch bridge steel longitudinal and transverse beam system |
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