CN205399233U - Accurate centering control construction structures of bridge rotation construction - Google Patents
Accurate centering control construction structures of bridge rotation construction Download PDFInfo
- Publication number
- CN205399233U CN205399233U CN201620147632.5U CN201620147632U CN205399233U CN 205399233 U CN205399233 U CN 205399233U CN 201620147632 U CN201620147632 U CN 201620147632U CN 205399233 U CN205399233 U CN 205399233U
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- bridge part
- bridge
- end bay
- turned
- construction
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Abstract
The utility model belongs to an accurate centering control construction structures of bridge rotation construction is that the perpendicular visible laser line that utilizes laser demarcation device to send is accomplished in bridge spare rotation construction the accurate centering of the bridge spare of turning. The structure that adopts includes that laser demarcation device is arranged in accomplishing the bridge spare accuracy centering control to turning at bridge spare rotation construction, and the laser demarcation device centering lies in the support that the bridge spare of turning rotated the cast -in -place section of the outer end bay of circumference, and the bottom plate central line in the limit span beam end cross section of water flat line that laser demarcation device throwed out and the bridge spare of turning is in the support and the interim buttress of same elevation, the bridge spare of turning, the cast -in -place section of end bay the utility model discloses turn at the bridge body and execute, have bridge body adjustment measure fast, the precision is high, construction speed is fast, it is laborsaving to save labour, construction cost low, the security is high, simple easy and the strong advantage of popularization.
Description
Technical field
This utility model belongs to a kind of Bridge Rotation Construction Technique precise alignment and controls constructing structure.
Background technology
At present, bridge part rotator construction technique majority is used for spanning existing railway line, both wired Safety Management is required strict, and examination and approval procedures are more complicated, it is desirable to construction must complete within the given time, otherwise affects existing railway line transportation safety.
Traditional rotator construction precision controlling is that technical staff's bridge part total powerstation to first oneself being turned and level gauge combine and carry out survey calculation, then notify that beam body is carried out a control and adjusts by Field Force again, owing to survey calculation requires a great deal of time, enter both wired simultaneously need to technical staff holds bridge on measurement instrument, there is certain potential safety hazard；Have beam body adjustment to measure slowly, low precision, speed of application are slow, effort of taking a lot of work, construction cost are big and the deficiency of poor stability.
Summary of the invention
The purpose of this utility model is that a kind of Bridge Rotation Construction Technique precise alignment of design controls constructing structure, have bridge adjustment measure fast, precision is high, speed of application is fast, save labor, construction cost is low, safety is high, easy to learn and popularization is strong advantage.
For this, this utility model includes bridge pier and bridge part, also includes:
Laser level, for completing the bridge part centering turned is controlled in bridge part rotator construction, on the support of the end bay Cast-in-Situ Segment that laser level centering is positioned at outside the bridge part turning circumference turned, the base plate center line of the horizontal line that laser level projects and the end bay beam-ends transverse section of the bridge part turned is in same elevation；
The bridge part turned, the base plate of the end bay beam-ends transverse section of the bridge part turned is provided with longitudinal axis pointer, and the end bay beam-ends transverse section of the bridge part turned marks the white line vertical with longitudinal axis pointer, and the base plate of end bay beam-ends transverse section is provided with base plate center line；
The support of end bay Cast-in-Situ Segment, for completing the bridge part construction turned in bridge part rotator construction, the upper surface of the support of end bay Cast-in-Situ Segment is flat surface, the lower end of the support of end bay Cast-in-Situ Segment is positioned in stent strut, and one end of the support of end bay Cast-in-Situ Segment connects with the adjacent bridge pier of the bridge part place bridge pier turned；
Temporary rest pier, for completing the bridge part construction turned in bridge part rotator construction, is positioned at the stent outer of end bay Cast-in-Situ Segment.
The vertical line distance of the base plate center line of described laser level and end bay beam-ends transverse section is 2～4m.The vertical line distance of the base plate center line of described laser level and end bay beam-ends transverse section is preferably 3m.The base plate center line of the horizontal line that described laser level projects and the end bay beam-ends transverse section of the bridge part turned is in same elevation.Described laser level is Feitian 453DP type laser level.The described bridge part turned rotates clockwise.
Said structure has reached the purpose of this utility model.
This utility model in bridge is turned and is executed, have bridge adjustment measure fast, precision high, speed of application fast, save labor, construction cost is low, safety is high, easy to learn and popularization is strong advantage.Beam body can be made to adjust measuring speed ratio traditional structure time contracting square 90% with this utility model；Construction cost reduces by 70%；Speed of application improves 2 times, without potential safety hazard；Owing to considerably reducing the bridge rotator construction time, without influence on existing railway line transportation safety.
Accompanying drawing explanation
Fig. 1 is overall constructing structure schematic diagram of the present utility model；
Fig. 2 is the partial structurtes schematic diagram of laser level of the present utility model and the end bay beam-ends transverse section of bridge part；
Fig. 3 is that bridge part of the present utility model is turned process status structural representation；
Fig. 4 is the structural representation of the end bay beam-ends transverse section of propons beam of turning of the present utility model；
Fig. 5 is longitudinal axis pointer of the present utility model kinestate structural representation in bridge part turns process.
Specific embodiments
As shown in Figures 1 to 5, one realizes Bridge Rotation Construction Technique precise alignment and controls constructing structure, including bridge pier and bridge part, also includes:
Laser level 2, for completing the bridge part precise alignment turned is controlled in bridge part rotator construction.On the support of the end bay Cast-in-Situ Segment that laser level centering is positioned at outside the bridge part turning circumference turned, the base plate center line of the horizontal line that laser level projects and the end bay beam-ends transverse section of the bridge part turned is in same elevation.
The bridge part turned, the base plate of the end bay beam-ends transverse section of the bridge part turned is provided with longitudinal axis pointer, and the end bay beam-ends transverse section of the bridge part turned marks the white line vertical with longitudinal axis pointer, and the base plate of end bay beam-ends transverse section is provided with base plate center line.
The support 1 of end bay Cast-in-Situ Segment, for completing the bridge part construction turned in bridge part rotator construction, the upper surface of the support of end bay Cast-in-Situ Segment is flat surface, the lower end of the support of end bay Cast-in-Situ Segment is positioned in stent strut, and one end of the support of end bay Cast-in-Situ Segment connects with the adjacent bridge pier 8 of the bridge part place bridge pier 5 turned.
Temporary rest pier 6, for completing the bridge part construction turned in bridge part rotator construction, is positioned at the stent outer of end bay Cast-in-Situ Segment.
The vertical line distance of the base plate center line of described laser level and end bay beam-ends transverse section is 2～4m.The vertical line distance of the base plate center line of described laser level and end bay beam-ends transverse section is preferably 3m.
The base plate center line of the horizontal line that described laser level projects and the end bay beam-ends transverse section of the bridge part turned is in same elevation.
Described laser level is Feitian 453DP type laser level.
The described bridge part turned rotates clockwise.
This utility model utilizes the vertical visible laser line that laser level 2 sends to complete, to the bridge part precise alignment turned, to comprise the steps: in bridge part 4 rotator construction
(1), before turning, the base plate of the end bay beam-ends transverse section 3 of the bridge part turned is installed longitudinal axis pointer 9, and marks the tag line vertical with longitudinal axis pointer on end bay beam-ends transverse section.
(1) according to design drawing, on the top board of the end bay beam-ends transverse section of the bridge part turned surveying and locating mark and turn before axis point A12.
(2) according to design drawing, in the beam chamber of the end bay beam-ends transverse section of the bridge part turned, surveying and locating marks axis point B14 before beam-ends base plate is turned.
(3) between the some A of end bay beam-ends section and some B, pull out the vertical line 13 of beam body longitudinal axis with white line, according to vertical line, longitudinal axis pointer 9 is installed.
(4) employing of installing of longitudinal axis pointer is welded with the box beam base plate exposed steel bar of the bridge part turned, and answers firm welding, and longitudinal axis pointer adopts the drill rod of diameter 5mm 50cm under outer head beam.Ensure with the deviation of plumb line less than 1mm.
(5) measuring the center line of base plate on the base plate of the end bay beam-ends transverse section of the bridge part turned, and eject with the line of ink marker, the line of ink marker is the base plate center line 15 vertical with longitudinal axis pointer, identifies as horizontal line.
(2) placement of laser level and correction.
(1) on the support 1 of the end bay Cast-in-Situ Segment that laser level 2 centering is positioned at outside the bridge part turning circumference turned.Can be selected for Feitian 453DP type laser level.Pedestal lower end is held fixing by stent strut 7.Laser level the best centering is placed on the support of end bay Cast-in-Situ Segment, and the vertical line distance of the base plate center line of laser level and end bay beam-ends transverse section is preferably 3m.Adjust this level three foot screw, make this level level.
(2) the base plate center line of the horizontal line 21 that laser level projects and the end bay beam-ends transverse section of the bridge part turned is in same elevation.
(3) calibration of laser level, makes vertical line that laser level projects and horizontal line (in Fig. 4 institute's target cross dotted line 22) all can be incident upon on end bay beam-ends transverse section, and identical with design.To facilitate technical staff to observe, it is desirable to make its vertical line and horizontal line be simultaneously projected on base plate section, and can be clearly observable.Vertical line and horizontal cross point are hard point, it is simple to centering is observed, and bearing calibration comprises the steps:
(a) by the support of temporary rest pier 6 and end bay Cast-in-Situ Segment as the platform hanging graticule, on the support by the I-steel on temporary rest pier top and end bay Cast-in-Situ Segment, surveying and locating goes out the Continuous beam design longitudinal axis of bridge part, and labelling axis point on the support of I-steel in temporary rest pier pier top and end bay Cast-in-Situ Segment.
B () is respectively welded diameter 10～13m reinforcing bar on two axis points of labelling, reinforcing bar top exceeds temporary rest pier pier top 45～55cm, and ensures that reinforcing bar 11 is vertical.
C () hangs graticule 10 on the reinforcing bar that two root beads connect.
D () hangs graticule on the reinforcing bar that two root beads connect, the graticule hung is checked, if there is misalignment of axe, is adjusted, until misalignment of axe is less than 1mm.
E the vernier knob of () twisting laser level, the vertical line making laser level project and the graticule of the longitudinal axis hung overlap.
(2) the centering process control of the bridge part turned.
(1) when turning, the support of each end bay Cast-in-Situ Segment sets up platform, and be equipped with 2 technicians bridge part to turning and carry out Real Time Observation.
(2) when the bridge part (as shown in phantom in Figure 3) turned is by time in place, technical staff by measure longitudinal axis pointer on the bridge part termination turned (as shown in phantom in Figure 5 and mark turn in longitudinal axis pointer 91) distance of vertical line that projects with laser level, it is reported to commander in chief with transmitter receiver, adjusted by a control, until the vertical line that longitudinal axis pointer projects with laser level overlaps (also hanging graticule position on reinforcing bar), the bridge part stopping turning is turned.
(3) technician is by the distance between box chi Laser Measurement level horizontal line and the base plate center line of bridge part turned, and for measuring horizontal line offset distance, can directly obtain the difference between the beam-ends elevation of back axle beam of turning and design load.If there being horizontal line offset distance, both can be made to overlap by jack back timber end adjustment.By jack back timber end, beam-ends cross hairs (base plate center line intersects to form with vertical line and the longitudinal axis pointer of longitudinal axis) may finally be adjusted to overlapping with the cross hairs sent of laser level, namely complete the centering rotator construction of the bridge part turned.
(4) complete the centering rotator construction of the bridge part turned, remove laser level and longitudinal axis pointer.
Described longitudinal axis pointer is diameter 5mm, 50cm at the bottom of outer head beam, when longitudinal axis pointer is installed by concordant with vertical line for the outside in longitudinal axis pointer direction.
The vertical line distance of the base plate center line that described laser level should be in same elevation, laser level and end bay beam-ends transverse section with the base plate center line of the end bay beam-ends transverse section of the bridge part turned is 2～4m.Described laser level should be preferably 3m with the vertical line distance of the base plate center line that the base plate center line of the end bay beam-ends transverse section of the bridge part turned is in same elevation, laser level and end bay beam-ends transverse section.
During construction, depending on existing railway line through the adjacent bridge pier 8 of bridge pier 5.Before turning, the base plate of the end bay beam-ends transverse section of the bridge part turned is installed longitudinal axis pointer, and on end bay beam-ends transverse section, marks the base plate center line vertical with longitudinal axis pointer.It is hung on bridge pier 5 (as shown in phantom in Figure 3 position) by oblique for bridge part 4, forms the bridge part turned.Arranging stent strut and temporary rest pier between two bridge piers, the lower end of the support 1 of end bay Cast-in-Situ Segment is positioned in stent strut, and one end of the support of end bay Cast-in-Situ Segment is fixed with adjacent bridge pier 8.The upper surface making the support of end bay Cast-in-Situ Segment defines the platform of the people that can stand, and places and calibration of laser level on platform.The vertical line distance of the base plate center line of laser level and end bay beam-ends transverse section is preferably 3m.Adjust this level three foot screw, make this level level.According to said method and step, rotate clockwise, complete the centering rotator construction of the bridge part turned, remove laser level and longitudinal axis pointer.Therefore be not repeated.
In a word, this utility model in bridge is turned and is executed, have bridge adjustment measure fast, precision high, speed of application fast, save labor, construction cost is low, safety is high, easy to learn and popularization is strong advantage.
Claims (6)
1. Bridge Rotation Construction Technique precise alignment controls a constructing structure, including bridge pier and bridge part, it is characterised in that: also include,
Laser level, for completing the bridge part centering turned is controlled in bridge part rotator construction, on the support of the end bay Cast-in-Situ Segment that laser level centering is positioned at outside the bridge part turning circumference turned, the base plate center line of the horizontal line that laser level projects and the end bay beam-ends transverse section of the bridge part turned is in same elevation；
The bridge part turned, the base plate of the end bay beam-ends transverse section of the bridge part turned is provided with longitudinal axis pointer, and the end bay beam-ends transverse section of the bridge part turned marks the white line vertical with longitudinal axis pointer, and the base plate of end bay beam-ends transverse section is provided with base plate center line；
The support of end bay Cast-in-Situ Segment, for completing the bridge part construction turned in bridge part rotator construction, the upper surface of the support of end bay Cast-in-Situ Segment is flat surface, the lower end of the support of end bay Cast-in-Situ Segment is positioned in stent strut, and one end of the support of end bay Cast-in-Situ Segment connects with the adjacent bridge pier of the bridge part place bridge pier turned；
Temporary rest pier, for completing the bridge part construction turned in bridge part rotator construction, is positioned at the stent outer of end bay Cast-in-Situ Segment.
2. by the structure described in claim 1, it is characterised in that: the vertical line distance of the base plate center line of described laser level and end bay beam-ends transverse section is 2～4m.
3. by the structure described in claim 2, it is characterised in that: the vertical line distance of the base plate center line of described laser level and end bay beam-ends transverse section is preferably 3m.
4. by structure described in claim 1, it is characterised in that: the base plate center line of the horizontal line that described laser level projects and the end bay beam-ends transverse section of the bridge part turned is in same elevation.
5. by the structure described in claim 1, it is characterised in that: described laser level is Feitian 453DP type laser level.
6. by the structure described in claim 1, it is characterised in that: the described bridge part turned rotates clockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147632.5U CN205399233U (en) | 2016-02-29 | 2016-02-29 | Accurate centering control construction structures of bridge rotation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147632.5U CN205399233U (en) | 2016-02-29 | 2016-02-29 | Accurate centering control construction structures of bridge rotation construction |
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| Publication Number | Publication Date |
|---|---|
| CN205399233U true CN205399233U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620147632.5U Expired - Fee Related CN205399233U (en) | 2016-02-29 | 2016-02-29 | Accurate centering control construction structures of bridge rotation construction |
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| Country | Link |
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| CN (1) | CN205399233U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108358106A (en) * | 2018-01-18 | 2018-08-03 | 重庆三峡学院 | A kind of bridge intelligence rotator construction control system based on touch Big Dipper positioning |
-
2016
- 2016-02-29 CN CN201620147632.5U patent/CN205399233U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108358106A (en) * | 2018-01-18 | 2018-08-03 | 重庆三峡学院 | A kind of bridge intelligence rotator construction control system based on touch Big Dipper positioning |
| CN108358106B (en) * | 2018-01-18 | 2023-05-09 | 重庆三峡学院 | Bridge intelligent swivel construction control system based on touch Beidou positioning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20210228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |