CN108360389A - Inclined arch rib positioning device and positioning method - Google Patents
Inclined arch rib positioning device and positioning method Download PDFInfo
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- CN108360389A CN108360389A CN201810409614.3A CN201810409614A CN108360389A CN 108360389 A CN108360389 A CN 108360389A CN 201810409614 A CN201810409614 A CN 201810409614A CN 108360389 A CN108360389 A CN 108360389A
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000009826 distribution Methods 0.000 claims abstract description 22
- 238000003466 welding Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005520 cutting process Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004807 localization Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 108010074506 Transfer Factor Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
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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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D4/00—Arch-type bridges
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a positioning device and a positioning method for an inclined arch rib, wherein the positioning device comprises a distribution beam, and a horizontal positioning unit and a vertical positioning unit are arranged on the distribution beam; the horizontal positioning unit comprises a first bottom plate, a second bottom plate, a first sliding plate and a second sliding plate, and the vertical positioning unit comprises a first supporting plate and a second supporting plate; the first bottom plate and the second bottom plate are horizontally and fixedly arranged at two ends of the distribution beam, the first sliding plate is horizontally fixed on the first bottom plate, the second sliding plate is horizontally fixed on the second bottom plate, the first supporting plate is fixedly arranged on the first sliding plate, and the second supporting plate is fixedly arranged on the second sliding plate; the top of the supporting plate is provided with a V-shaped groove. The invention can complete the preliminary positioning through the supporting plate, the V-shaped groove cutting supporting plate can meet the design elevation requirement of the positioning point, the pushing sliding plate can complete the horizontal positioning, the operation is simple, the manufacturing cost is low, the required space is small, the positioning precision is high, and the invention can be widely applied to the positioning and installation of the inclined arch rib in the actual engineering.
Description
Technical field
The present invention is more particularly directed to a kind of inclination Arch rib positioning device and localization methods.
Background technology
Novel bridge structure is increasingly common in China's bridge construction now, as introversion formula arch bridge and external inclined type encircle
Bridge.One difficult point of introversion formula arch bridge or external inclined type arch bridge is to tilt the positioning of arch rib.If the deviations of arch rib are larger, meeting
It is big at the stressing influence of bridge to encircleing, and then influence the safety of structure.
In the positioning of actual tilt arch rib, common method is positioned using gantry crane.But this method may
Influenced by access bridge, steel-pipe pile and crossed construction etc. so that insufficient space and can not be positioned.Meanwhile this method is accurate
When adjustment, difficulty of construction is big and quite time-consuming.Since the weight of lifting is big, spatial position is complicated, required precision is high, thus in reality
In the lifting of border, the positioning for tilting arch rib is quite time-consuming and expense is larger.
Invention content
It is an object of the present invention in view of the above shortcomings of the prior art, a kind of inclination Arch rib positioning device and fixed is provided
Position method, easy to operate, low cost, required space is small, positioning accuracy is high.
In order to solve the above technical problems, the technical solution adopted in the present invention is：
A kind of inclination Arch rib positioning device, the arch rib end have anchor point, and the anchor point includes arch rib end one
Second anchor point of the first anchor point and the arch rib end other side of side, its main feature is that including distribution beam, distribution beam is equipped with can
In the horizontal direction to position point location horizontal location unit, can be in vertical direction to the vertically oriented list of Arch rib positioning point location
Member.
By above structure, when using positioning device to tilting Arch rib positioning, adjustment horizontal location unit until its positioning
Horizontal position it is consistent with calculated anchor point horizontal position, adjust vertically oriented unit until its positioning elevation and meter
The positioning point height of calculating is consistent, then welds arch rib and the contact point of positioning device, you can facilitates the positioning realized and tilt arch rib.
The horizontal location unit includes the first bottom plate, the second bottom plate, the first sliding panel, the as a preferred method,
Two sliding panels, the vertically oriented unit include at least one piece of first support plate, at least one piece of second support plate；First bottom
Plate level is fixedly arranged on distribution beam one end upper surface, and second floor level is fixedly arranged on distribution beam other end upper surface, and first slides
Movable plate level is fixed on the first plate upper surface, and the second sliding plate level is fixed on the second plate upper surface, and the first support plate is perpendicular
It directly is fixedly arranged on the first sliding panel upper surface, the second support plate is fixedly arranged on the second sliding panel upper surface vertically；Second support plate top margin
Elevation relative to the second bottom plate is more than elevation of the first support plate top margin relative to the first bottom plate；It is opened up at the top of first support plate
It is used to support and is accommodated the first V-groove of arch rib bottom, is opened up at the top of the second support plate and is used to support and accommodates arch rib bottom
Second V-groove；First V-groove vertex is more than height of first anchor point relative to the first bottom plate relative to the elevation of the first bottom plate
Journey, the second V-groove vertex are more than elevation of second anchor point relative to the second bottom plate relative to the elevation of the second bottom plate.
It can be cut in the first support plate by above structure when the elevation for tilting Arch rib positioning position need to finely tune
The second V-groove on first V-groove and the second support plate.It, can be with pushing tow the when tilting Arch rib positioning horizontal position and need to finely tune
One sliding panel and the second sliding panel.As it can be seen that it is higher preliminary fixed to complete precision by the first support plate and the second support plate
Position, need to only cut V-groove support plate just during the adjustment can reach the design altitude requirement of anchor point, can by pushing tow slide plate
The horizontal location of anchor point at this is completed, easy to operate, low cost, required space is small, positioning accuracy is high, can be widely applied to
The location and installation of arch rib is tilted in Practical Project.
Wherein, the first V-groove vertex is more than the first anchor point relative to the first bottom plate relative to the elevation of the first bottom plate
Elevation (preferably high 3cm), the second V-groove vertex are more than the second anchor point relative to the second bottom relative to the elevation of the second bottom plate
The elevation (preferably high 3cm) of plate, to consider existing error.
Further, the vertically oriented unit further includes column and backing plate, second support plate pass sequentially through backing plate,
Column is connected with sliding panel, and the backing plate level is set to above sliding panel.
Further, further include the first diagonal brace, one end and the column of the first diagonal brace are connected, the other end of the first diagonal brace with point
It is connected with beam.
First diagonal brace can enhance the lateral stability of arch rib.
The central point of the central point of the backing plate and the first sliding panel is in same vertical straight line as a preferred method,
On, the central point of the first sliding panel is located on the vertical axis of column.
The number of first support plate is 3 pieces as a preferred method, and the number of the second support plate is 3 pieces, each the
One support plate is distributed on the first sliding panel, and each second support plate is distributed on backing plate；Positioned at the first most intermediate sliding panel bottom
Face center in same vertical straight line, is located at the second most intermediate sliding panel bottom center and the second anchor point with the first anchor point
In same vertical straight line.
Further, further include the second diagonal brace, one end of second diagonal brace when the inclination arch rib is introversion formula arch rib
It is abutted against with arch rib medial surface, the other end and the bridge floor of the second diagonal brace abut against.
Second diagonal brace can improve the anti-tilt ability of arch rib, improve the stability of arch rib.
As a preferred method, the first bottom plate side it is fixed for preventing that the first sliding panel is detached from from the first bottom plate the
One baffle, the second bottom plate side are fixed for preventing the second baffle that the second sliding panel is detached from from the second bottom plate.
First baffle and second baffle can more effectively fix the lateral shift of arch rib.
Fixed third plate washer in distribution beam as a preferred method, third plate washer are located at the side of the first support plate, the
Two support plates are located at the other side of the first support plate, further increase the anti-roll capability of arch rib.
The elevation of distribution beam is lower 0.5m than positioning point height as a preferred method, to install adjustable other structures
Part.
It is located at design altitude of the first most intermediate sliding panel cope level than the first anchor point as a preferred method,
High 10cm, it is higher 10cm than the design altitude of the second anchor point positioned at the second most intermediate sliding panel cope level, it is positioned with build-in
Point.
Based on the same inventive concept, encircleed to tilting using the inclination Arch rib positioning device the present invention also provides a kind of
The method that rib is positioned, includes the following steps：
Step A. calculates Arch rib positioning point position；
The locating point position that step B. is determined according to step A, using positioning device to tilting Arch rib positioning, in position fixing process
In, for adjustment horizontal location unit until the horizontal position of its positioning is consistent with calculated anchor point horizontal position, adjustment is vertical
Positioning unit until its positioning elevation it is consistent with calculated positioning point height；
The contact point of step C. welding arch rib and positioning device.
The step A includes as a preferred method,：
Step A1. calculates the coordinate of any point on arch when not considering to encircle in advance in arch tapered plane, does not consider pre-
Reference frame origin is at vault when arch, and the directions x are along across footpath direction, and the directions z are along rise direction, and the directions y are according to right-handed helix
Rule determination, then：
In formula, (x0, y0, z0) it is coordinate of any point when not considering to encircle in advance in reference frame on arch, f is arrow
Height, m are arch axis coefficient, l1It is half across footpath,
Step A2. calculates the coordinate of any point on arch rib section when not considering to encircle in advance in arch tapered plane, then：
In formula, (x1, y1, z1) it is coordinate of any point when not considering to encircle in advance in reference frame on arch rib section, h is
Distance of the required point apart from arch rib section central point on arch rib section, a be on arch rib section required point apart from arch rib section center
The horizontal distance of line, α are the horizontal angles of required point on arch rib section, and θ is the inclination angle of arch rib；
Step A3. is calculated consider camber after in arch horizontal frontal plane on arch rib any point coordinate, that is, position point coordinates,
Consider after camber that reference frame origin be at the vault of arch horizontal frontal plane, the directions x along across footpath direction, the directions z along rise direction,
The directions y determine according to right-hand rule, then：
In formula, (x, y, z) is Arch rib positioning point coordinates, Δ zyFor the camber in arch tapered plane direction, b is in bridge floor
The offset distance of heart line and arch rib arch springing line；
The positioning point coordinates that step A4. is calculated according to step A3 determines locating point position.
Further, further include that step D. utilizes the second diagonal brace supporting arch when the inclination arch rib is introversion formula arch rib
Rib top, the strength of materials of the second diagonal brace is by formula σc=M/HAxIt determines, wherein σcFor the axial stress of the second diagonal brace, M is arch
The inclination moment of flexure that rib generates under dead weight, H are the centre distance of arch rib top plate and arch rib bottom plate, AxFor the section of the second diagonal brace
Product.
Compared with prior art, beneficial effects of the present invention are：It can be completed by the first support plate and the second support plate
The higher Primary Location of precision, the design altitude that need to only cut V-groove support plate just during the adjustment and can reach anchor point are wanted
It asks, can complete the horizontal location of anchor point at this by pushing tow slide plate, easy to operate, low cost, required space be small, positioning accuracy
Height can be widely applied to the location and installation that arch rib is tilted in Practical Project.
Description of the drawings
Fig. 1 is that the present invention tilts one example structure schematic diagram of Arch rib positioning device.
Fig. 2 is associated components structural schematic diagram at the first sliding panel of the invention.
Fig. 3 is that the present invention tilts Arch rib positioning working state of device schematic diagram.
Wherein, 1 is distribution beam, and 2 be the first bottom plate, and 3 be the second bottom plate, and 4 be the first sliding panel, and 5 be the second sliding panel, 6
It is the first V-groove for the first support plate, 601,7 be the second support plate, and 701 be the second V-groove, and 8 be column, and 9 be backing plate, and 10 are
Arch rib, 11 be the first diagonal brace, and 12 be the second diagonal brace, and 13 be first baffle, and 14 be second baffle, and 15 be third plate washer.
Specific implementation mode
10 end of the arch rib has anchor point, and the anchor point includes the first anchor point and arch of 10 end side of arch rib
Second anchor point of the 10 end other side of rib, as shown in Figure 1 to Figure 3, it includes one group of firm distribution to tilt Arch rib positioning device
Beam, distribution beam 1 is equipped with can be in the horizontal direction to positioning the horizontal location unit of point location, can determining arch rib 10 in vertical direction
The vertically oriented unit of site positioning.
The horizontal location unit includes the first bottom plate 2, the second bottom plate 3, the first sliding panel 4, the second sliding panel 5, described
Vertically oriented unit includes three piece of first support plate, 6, three piece of second support plate 7；First bottom plate, 2 level is welded in distribution beam
1 one end upper surface, 3 level of the second bottom plate are welded in 1 other end upper surface of distribution beam, the 4 level point solid welding of the first sliding panel
Due to 2 upper surface of the first bottom plate, the 5 level point solid welding of the second sliding panel schedules 3 upper surface of the second bottom plate, the welding of the first support plate 6
It is fixedly arranged on 4 upper surface of the first sliding panel, the second support plate 7 is welded in 5 upper surface of the second sliding panel vertically；Second support plate 7 is pushed up
While the elevation relative to the second bottom plate 3 is more than elevation of 6 top margin of the first support plate relative to the first bottom plate 2；First support plate 6 is pushed up
Portion opens up the first V-groove 601 for being used to support and accommodating 10 bottom of arch rib, and 7 top of the second support plate, which opens up, to be used to support and hold
Receive the second V-groove 701 of 10 bottom of arch rib；First V-groove, 601 vertex is more than the first positioning relative to the elevation of the first bottom plate 2
Elevation o'clock relative to the first bottom plate 2,701 vertex of the second V-groove are more than the second anchor point phase relative to the elevation of the second bottom plate 3
For the elevation of the second bottom plate 3.
The central point of first bottom plate 2 and the first sliding panel 4 is with the first anchor point in same vertical straight line, the second bottom plate
3 and second sliding panel 5 central point with the second anchor point in same vertical straight line.
The vertically oriented unit further includes column 8 and backing plate 9, and second support plate 7 passes sequentially through backing plate 9, column 8
It is connected with sliding panel welding, the backing plate 9 is horizontal to be set to above sliding panel.
It further includes the first diagonal brace 11 to tilt Arch rib positioning device, and one end and the welding column 8 of the first diagonal brace 11 are connected, and first
The other end of diagonal brace 11 is connected with the welding of distribution beam 1.
The central point of the central point of the backing plate 9 and the first sliding panel 4 in same vertical straight line, the first sliding panel 4
Central point is located on the vertical axis of column 8.
Each first support plate 6 is distributed on the first sliding panel 4, and each second support plate 7 is distributed on backing plate 9；In most
Between 4 bottom center of the first sliding panel and the first anchor point in same vertical straight line, be located at most intermediate 5 bottom of the second sliding panel
Face center is with the second anchor point in same vertical straight line.
Positioning device of the present invention is suitable for introversion formula arch rib and external inclined type arch rib.
Further include the second diagonal brace 12 when the inclination arch rib 10 is introversion formula arch rib, one end of second diagonal brace 12 with
10 medial surface of arch rib abuts against, and the other end of the second diagonal brace 12 is abutted against with bridge floor.
Each second V-groove, 701 vertex on each first V-groove, 601 vertex, the second support plate 7 in first support plate 6 connects
Line inclination angle is consistent with the leaning angle of the arch rib 10.
The corresponding sides of 701 notch of first V-groove 601 and the second V-groove are mutually parallel.
First bottom plate, 2 side is welded with two pieces of first baffles for preventing the first sliding panel 4 to be detached from from the first bottom plate 2
13,3 side of the second bottom plate is welded with two pieces of second baffles 14 for preventing the second sliding panel 5 to be detached from from the second bottom plate 3.
Fixed third plate washer 15 in distribution beam 1, third plate washer 15 are located at the side of the first support plate 6, the second support plate 7
In the other side of the first support plate 6.
The elevation of distribution beam 1 is lower 0.5m than positioning point height.
It is higher 10cm than the design altitude of the first anchor point positioned at most intermediate 4 cope level of the first sliding panel, in being located at most
Between 5 cope level of the second sliding panel it is higher 10cm than the design altitude of the second anchor point.
In use, a set of positioning device is respectively arranged (i.e. at arch springing and vault) at the both ends of arch rib 10.
Included the following steps to tilting the method that arch rib 10 is positioned using the inclination Arch rib positioning device：
Step A. calculates 10 locating point position of arch rib.Wherein 10 locating point position of arch rib can be sat by establishing three-dimensional right angle
Mark system or polar coordinate system obtain.
The locating point position that step B. is determined according to step A is positioned to tilting arch rib 10 using positioning device, was being positioned
Cheng Zhong, for adjustment horizontal location unit until the horizontal position of its positioning is consistent with calculated anchor point horizontal position, adjustment is perpendicular
Straight positioning unit until the elevation of its positioning is consistent with calculated positioning point height.
Specifically, step B includes：
First, according to 10 locating point position of calculated arch rib, by the first V-type of the lifting of arch rib 10 to the first support plate 6
In slot 601 and the second V-groove 701 of the second support plate 7, and ensure the V-groove of anchor point and most intermediate support plate as far as possible
Mouth tip overlaps, and completes Primary Location.
Then, when the horizontal position of positioning and design value are not inconsistent, fixed first sliding panel of spot welding 4 is cut with hand grinding tool
With the second sliding panel 5, then to suitable position and it is welded with jack pushing tow the first sliding panel 4 and the second sliding panel 5.
Finally, due to error transfer factor amount is considered, thus general only exist positions the point height situation higher than design value, this
When with gas flame cuttiug the first V-groove 601 and the second V-groove 701 to design altitude.
It is preferential to implement being accurately positioned for arch springing end in position fixing process, then it is accurately positioned domed end.
Step C. welds the contact point of arch rib 10 and positioning device, that is, be welded institute when the positioning at both ends to suitable position
There is the contact point of anchor point and the first support plate 6 and the second support plate 7.
The step A includes：
Step A1. calculates the coordinate of any point on arch when not considering to encircle in advance in arch tapered plane, does not consider pre-
Reference frame origin is at vault when arch, and the directions x are along across footpath direction, and the directions z are along rise direction, and the directions y are according to right-handed helix
Rule determination, then：
In formula (1), (x0, y0, z0) it is coordinate of any point when not considering to encircle in advance in reference frame on arch, f is
Rise, m are arch axis coefficient, l1It is half across footpath,
Step A2. calculates the coordinate of any point on 10 section of arch rib when not considering to encircle in advance in arch tapered plane, then：
In formula (2), (x1, y1, z1) it is seat of any point when not considering to encircle in advance in reference frame on 10 section of arch rib
Mark, h is distance of the required point apart from 10 kernel of section point of arch rib on 10 section of arch rib, and a is required point distance on 10 section of arch rib
The horizontal distance of 10 kernel of section line of arch rib, α are the horizontal angles of required point on 10 section of arch rib, and θ is the inclination angle of arch rib 10；
Step A3. is calculated consider camber after in arch horizontal frontal plane on arch rib 10 any point coordinate, i.e. anchor point sits
Mark, reference frame origin is to encircle at the vault of horizontal frontal plane after considering camber, and the directions x are along across footpath direction, and the directions z are along rise side
To the directions y are determined according to right-hand rule, then：
In formula (3), (x, y, z) is that arch rib 10 positions point coordinates, Δ zyFor the camber in arch tapered plane direction, b is
Horizontal off set of the bridge floor center line with the offset distance of 10 arch springing line of arch rib or with vault；
The positioning point coordinates that step A4. is calculated according to step A3 determines locating point position.
To ensure there are enough safeties, it should determine the lateral stress of arch rib 10, determine the first support plate 6 and second in advance
The material model of support plate 7, when the inclination arch rib 10 is introversion formula arch rib, method is as follows,
First, lateral force and the corresponding stress tilted at 10 medial support point of arch rib is calculated.For the simplicity of calculating
Consider certain safe clearance simultaneously, it is assumed that the cross component force of the dead weight of arch rib 10 is carried by the first support plate 6 entirely, and ignores the
The carrying of two support plates 7 acts on.Meanwhile arch rib 10 is reduced to inclined three-dimensional planar plate, then formula is：
σv=Fy/ nl ＜ σf (5)
In formula (4) and (5), FyFor the lateral force at medial support point, G is the dead weight of arch rib 10, and n is the disconnected of V-groove mouth
Face width, l are the section length of V-groove mouth, σvFor the calculating stress of the first support plate 6, σfIt is bent for the material of the first support plate 6
Take intensity.
When the stress calculated is more than yield stress, the first support plate 6 with higher intensity and second should be selected
Fagging 7；When the stress calculated is less than yield stress, the work of next step can be carried out.
Tilting arch rib 10 needs to consider there is enough stability in an installation.The inclination moment of flexure of arch rib 10 is mainly pushed up by arch rib 10
The moment of flexure of 10 bottom plate of plate and arch rib controls, shown in size such as formula (6).For this purpose, when the inclination arch rib 10 encircles for introversion formula
Further include that step D. utilizes 10 medial surface top of the second diagonal brace 12 support arch rib, the stability of raising arch rib 10 when rib.Second tiltedly
The strength of materials of support 12 is determined by formula (8).
M=GtGbHsin2θ (6)
σc=M/HAx (7)
Wherein, σcFor the axial stress of the second diagonal brace 12, M is the inclination moment of flexure that arch rib 10 generates under dead weight, GtFor arch rib
The dead weight of 10 top plates, GbFor the dead weight of 10 bottom plate of arch rib, H is the centre distance of 10 bottom plate of 10 top plate of arch rib and arch rib, AxIt is second
The sectional area of diagonal brace 12.
The embodiment of the present invention is described with above attached drawing, but the invention is not limited in above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than limitation, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, within these are all belonged to the scope of protection of the present invention.
Claims (10)
1. a kind of inclination Arch rib positioning device, arch rib (10) end has anchor point, and the anchor point includes arch rib (10)
Second anchor point of the first anchor point and arch rib (10) end other side of end side, which is characterized in that including distribution beam
(1), distribution beam (1) be equipped with can in the horizontal direction to arch rib (10) position point location horizontal location unit, can be in vertical side
To the vertically oriented unit for positioning point location to arch rib (10).
2. tilting Arch rib positioning device as described in claim 1, which is characterized in that the horizontal location unit includes the first bottom
Plate (2), the second bottom plate (3), the first sliding panel (4), the second sliding panel (5), the vertically oriented unit include at least one piece the
One support plate (6), at least one piece of second support plate (7)；First bottom plate (2) is horizontally located in distribution beam (1) one end upper table
Face, second bottom plate (3) are horizontally located in distribution beam (1) other end upper surface, and the first sliding panel (4) level is fixed on first
Bottom plate (2) upper surface, the second sliding panel (5) level are fixed on the second bottom plate (3) upper surface, and the first support plate (6) is vertical fixed
In the first sliding panel (4) upper surface, the second support plate (7) is fixedly arranged on the second sliding panel (5) upper surface vertically；Second support plate
(7) top margin is more than elevation of the first support plate (6) top margin relative to the first bottom plate (2) relative to the elevation of the second bottom plate (3)；The
The first V-groove (601) for being used to support and accommodating arch rib (10) bottom, the second support plate (7) top are opened up at the top of one support plate (6)
Portion opens up the second V-groove (701) for being used to support and accommodating arch rib (10) bottom；First V-groove (601) vertex is relative to first
The elevation of bottom plate (2) is more than elevation of first anchor point relative to the first bottom plate (2), and the second V-groove (701) vertex is relative to the
The elevation of two bottom plates (3) is more than elevation of second anchor point relative to the second bottom plate (3).
3. tilting Arch rib positioning device as claimed in claim 2, which is characterized in that the vertically oriented unit further includes column
(8) backing plate (9), column (8) and sliding panel are passed sequentially through and is connected with backing plate (9), second support plate (7), the backing plate (9)
Level is set to above sliding panel.
4. tilting Arch rib positioning device as claimed in claim 3, which is characterized in that further include the first diagonal brace (11), first tiltedly
The one end and column (8) for supportting (11) are connected, and the other end and the distribution beam (1) of the first diagonal brace (11) are connected.
5. tilting Arch rib positioning device as claimed in claim 3, which is characterized in that the central point and first of the backing plate (9)
For the central point of sliding panel (4) in same vertical straight line, the central point of the first sliding panel (4) is located at the vertical axis of column (8)
On.
6. tilting Arch rib positioning device as claimed in claim 3, which is characterized in that the number of first support plate (6) is 3
The number of block, the second support plate (7) is 3 pieces, and each first support plate (6) is distributed on the first sliding panel (4), each second support plate
(7) it is distributed on backing plate (9)；Positioned at most intermediate the first sliding panel (4) bottom center and the first anchor point same vertical straight
On line, it is located at most intermediate the second sliding panel (5) bottom center and the second anchor point in same vertical straight line.
7. as claim 1 to 6 any one of them tilts Arch rib positioning device, which is characterized in that when the inclination arch rib
(10) be introversion formula arch rib when, further include the second diagonal brace (12), one end and arch rib (10) the medial surface phase of second diagonal brace (12)
It abuts, the other end of the second diagonal brace (12) is abutted against with bridge floor.
8. a kind of positioned using the inclination Arch rib positioning device as described in any one of claim 1 to 7 to tilting arch rib (10)
Method, which is characterized in that include the following steps：
Step A. calculates arch rib (10) locating point position；
The locating point position that step B. is determined according to step A is positioned using positioning device to tilting arch rib (10), in position fixing process
In, for adjustment horizontal location unit until the horizontal position of its positioning is consistent with calculated anchor point horizontal position, adjustment is vertical
Positioning unit until its positioning elevation it is consistent with calculated positioning point height；
The contact point of step C. welding arch ribs (10) and positioning device.
9. tilting Arch rib positioning method as claimed in claim 8, which is characterized in that the step A includes：
Step A1. calculates the coordinate of any point on arch when not considering to encircle in advance in arch tapered plane, when not considering to encircle in advance
Reference frame origin is at vault, and the directions x are along across footpath direction, and the directions z are along rise direction, and the directions y are according to right-hand rule
It determines, then：
In formula, (x0, y0, z0) it is coordinate of any point when not considering to encircle in advance in reference frame on arch, f is rise, m
It is arch axis coefficient, l1It is half across footpath,
Step A2. calculates the coordinate of any point on arch rib (10) section when not considering to encircle in advance in arch tapered plane, then：
In formula, (x1, y1, z1) it is coordinate of any point when not considering to encircle in advance in reference frame on arch rib (10) section, h is
Distance of the required point apart from arch rib (10) kernel of section point on arch rib (10) section, a are required point distances on arch rib (10) section
The horizontal distance of arch rib (10) kernel of section line, α are the horizontal angles of required point on arch rib (10) section, and θ is inclining for arch rib (10)
Angle；
Step A3. is calculated consider camber after in arch horizontal frontal plane on arch rib (10) any point coordinate, that is, position point coordinates,
Consider after camber that reference frame origin be at the vault of arch horizontal frontal plane, the directions x along across footpath direction, the directions z along rise direction,
The directions y determine according to right-hand rule, then：
In formula, (x, y, z) is that arch rib (10) positions point coordinates, Δ zyFor the camber in arch tapered plane direction, b is in bridge floor
The offset distance of heart line and arch rib (10) arch springing line；
The positioning point coordinates that step A4. is calculated according to step A3 determines locating point position.
10. tilting Arch rib positioning method as claimed in claim 8, which is characterized in that when the inclination arch rib (10) is introversion
Further include that step D. supports arch rib (10) top, the strength of materials of the second diagonal brace (12) using the second diagonal brace (12) when formula arch rib
By formula σc=M/HAxIt determines, wherein σcFor the axial stress of the second diagonal brace (12), M is what arch rib (10) generated under dead weight
Moment of flexure is rolled, H is the centre distance of arch rib (10) top plate and arch rib (10) bottom plate, AxFor the sectional area of the second diagonal brace (12).
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