CN110145159A - A kind of hard crossbeam of the contact net of welded connecting and its construction method - Google Patents
A kind of hard crossbeam of the contact net of welded connecting and its construction method Download PDFInfo
- Publication number
- CN110145159A CN110145159A CN201910559265.8A CN201910559265A CN110145159A CN 110145159 A CN110145159 A CN 110145159A CN 201910559265 A CN201910559265 A CN 201910559265A CN 110145159 A CN110145159 A CN 110145159A
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- Prior art keywords
- crossbeam
- hard
- steel column
- contact net
- welded
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- 238000010276 construction Methods 0.000 title claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 238000005259 measurement Methods 0.000 claims abstract description 28
- 238000009434 installation Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 239000003755 preservative agent Substances 0.000 claims description 2
- 230000002335 preservative effect Effects 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009417 prefabrication Methods 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/20—Arrangements for supporting or suspending trolley wires, e.g. from buildings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M1/00—Power supply lines for contact with collector on vehicle
- B60M1/12—Trolley lines; Accessories therefor
- B60M1/28—Manufacturing or repairing trolley lines
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Laser Beam Processing (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of hard crossbeam of the contact net of welded connecting and its construction methods, hard crossbeam includes several steel columns, crossbeam is connected between adjacent two steel columns, steel column and crossbeam are precast construction part, the height of steel column is determined according to the foundation elevation that measurement obtains, the centre distance on two bases that the length of crossbeam is obtained according to measurement is determined, and the negative degree of speeding of crossbeam is determined according to crossbeam vertical load suffered under normal use operating condition；Construction method is poured including basis；Negative degree of speeding needed for calculating crossbeam；It determines the height of every steel column of hard crossbeam, and carries out prefabricated；Determine the length of every group of crossbeam of hard crossbeam, and according to required negative degree of speeding prefabricated crossbeam；On the basis of steel column is fixed on；In place by crossbeam transhipment, and the length of crossbeam is checked；Lifting cross beam is temporarily bolted crossbeam with steel column, is carried out secondary bolt after recycling crane to adjust crossbeam to required negative degree of speeding, is finally welded to connect in junction.
Description
Technical field
The present invention relates to a kind of hard crossbeam of contact net, in particular to the hard crossbeam of a kind of contact net of welded connecting and its construction
Method.
Background technique
The hard crossbeam of welded type gate has rigidity good compared to the hard crossbeam that traditional ring flange connects, indeformable excellent
Point, but its construction process requirement is more complicated, and process is more, and the processes such as welding and adjustment need to complete in high-altitude, difficulty of construction
It is larger.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency in the presence of the prior art, a kind of contact of welded connecting is provided
Net hard crossbeam and its construction method.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes:
A kind of construction method of the hard crossbeam of the contact net of welded connecting, comprising the following steps:
Step 1: basis pours, and when construction ensures the center line on each basis point-blank, and is surveyed using level
The absolute altitude for measuring each basis, using the centre distance between the two neighboring basis of laser range finder and level measurement；
Step 2: needed for calculating the crossbeam of hard crossbeam according to hard crossbeam vertical load suffered under normal use operating condition
Negative degree of speeding；
Step 3: the foundation elevation obtained according to step 1 measurement determines the height of every steel column of hard crossbeam, and carries out pre-
System；
Step 4: according to the centre distance on two bases that the step 1 measurement obtains, every group of crossbeam of hard crossbeam is determined
Length, and according to the prefabricated crossbeam of negative degree of speeding that the step 2 is calculated；
Step 5: by the prefabricated steel column be fixed on it is described on the basis of, and using pole centralizing device or crowbar to steel
Column position is corrected；
Step 6: in place by prefabricated crossbeam transhipment, grouping carries out assembled connection, and multiple using laser range finder
The length of crossbeam described in core；
Step 7: lifting the crossbeam, and the cross beam edges section of the crossbeam is directly welded on the quarter line pillaring of the steel column,
The crossbeam straight section of the crossbeam and the capital pillar of the intermediolateral column of the steel column are temporarily bolted, recycle crane described
The crossbeam straight section of crossbeam carries out secondary bolt after adjusting to required negative degree of speeding, and is finally welded to connect, is being welded in junction
When observe the negative sag value of crossbeam in real time with digital display horizontal rule.
Wherein, the sequencing of the step 3 and step 4 can be exchanged, and can also carry out simultaneously.
Hard crossbeam construction method of the present invention determines the dimension information of steel column and crossbeam by in-site measurement, and tight
Lattice carry out prefabricated, site operation error of keeping under strict control, it is ensured that construction precision according to required size；It is born needed for crossbeam by precalculating
Degree of speeding, and prefabrication is carried out according to required negative degree of speeding, the negative degree of speeding of every group of crossbeam of having gone bail for is up to standard；During assembly and spell
Detection process is introduced after the completion of dress, it is ensured that construction one-time-reach-place prevents phenomenon of doing over again.Using construction method of the present invention,
Working procedure can be greatly simplified, guarantees construction precision, improves construction efficiency.
Preferably, in the step 1: ensure the center line on each basis using transit survey point-blank,
Transit survey precision is higher.
Preferably, in the step 2: the vertical load includes crossbeam self weight, maintenance load and dead load.
Preferably, in the step 2: the dead load is to generate after hanging installing contact net since contact net is self-possessed
Load.
Preferably, in the step 5: the steel column installation site is measured using laser range finder and level meter,
Ensure that steel column is correct in the position along line direction and horizontal path direction.
Preferably, in the step 7: after the completion of the crossbeam and steel column welded connecting, also having carried out preservative treatment.
The invention also discloses a kind of hard crossbeams of the contact net of welded connecting, including several steel columns, in adjacent two institutes
It states and is connected with crossbeam between steel column, the steel column and crossbeam are precast construction part, and the height of the steel column is obtained according to measurement
Foundation elevation be determined, the centre distances on two bases that the length of the crossbeam is obtained according to measurement are determined, described
The negative degree of speeding of crossbeam is determined according to crossbeam vertical load suffered under normal use operating condition.
The hard crossbeam of contact net of the present invention has the accuracy of manufacture high, is convenient for assembling construction, can be improved construction precision and
The advantages of construction efficiency.
Preferably, the foundation elevation is obtained using level measurement, and the centre distance on two basis uses Laser Measuring
Distance meter and level measurement measurement obtain.
Preferably, the steel column includes quarter line pillaring and intermediolateral column, is equipped with capital pillar in the top of the intermediolateral column, described
Crossbeam includes cross beam edges section and crossbeam straight section, and the cross beam edges section is connected with crossbeam straight section by connecting sleeve assembly, the cross
Beam side section is welded to connect with the quarter line pillaring, and the crossbeam straight section is welded to connect after bolting with the capital pillar.
Preferably, the crossbeam and steel column are applied according to a kind of construction method of the hard crossbeam of contact net of welded connecting
Work obtains.
Compared with prior art, beneficial effects of the present invention:
Hard crossbeam construction method of the present invention determines the dimension information of steel column and crossbeam by in-site measurement, and tight
Lattice carry out prefabricated, site operation error of keeping under strict control, it is ensured that construction precision according to required size；It is born needed for crossbeam by precalculating
Degree of speeding, and prefabrication is carried out according to required negative degree of speeding, the negative degree of speeding of every group of crossbeam of having gone bail for is up to standard；During assembly and spell
Detection process is introduced after the completion of dress, it is ensured that construction one-time-reach-place prevents phenomenon of doing over again.Using construction method of the present invention,
Working procedure can be greatly simplified, guarantees construction precision, improves construction efficiency.
The hard crossbeam of contact net of the present invention has the accuracy of manufacture high, is convenient for assembling construction, can be improved construction precision and
The advantages of construction efficiency.
Detailed description of the invention:
Fig. 1 is a kind of structural schematic diagram of the hard crossbeam of contact net of welded connecting of the present invention.
Marked in the figure: 1- quarter line pillaring, 2- intermediolateral column, the capital 3- pillar, 4- connecting sleeve, 5- bolt, 6- cross beam edges section, 7-
Crossbeam straight section, the basis 8-.
Specific embodiment
Below with reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
It is all that this is belonged to based on the technology that the content of present invention is realized for the scope of the above subject matter of the present invention is limited to the following embodiments
The range of invention.
Embodiment 1
A kind of construction method of the hard crossbeam of the contact net of welded connecting, comprising the following steps:
Step 1: basis pours, and when construction ensures the center line on each basis in straight line using transit survey
On, and use level measures the absolute altitude on each basis, using between the two neighboring basis of laser range finder and level measurement
Centre distance；
Step 2: needed for calculating the crossbeam of hard crossbeam according to hard crossbeam vertical load suffered under normal use operating condition
Negative degree of speeding, the vertical load includes crossbeam self weight, maintenance load and dead load, and the dead load is suspension installation contact
After net, since contact net is self-possessed and the load of generation；
Step 3: the foundation elevation obtained according to step 1 measurement determines the height of every steel column of hard crossbeam, and carries out pre-
System；
Step 4: according to the centre distance on two bases that the step 1 measurement obtains, every group of crossbeam of hard crossbeam is determined
Length, and according to the prefabricated crossbeam of negative degree of speeding that the step 2 is calculated；
Step 5: by the prefabricated steel column be fixed on it is described on the basis of, using laser range finder and level meter
The steel column installation site is measured, it is ensured that the steel column the position along line direction and horizontal path direction just
Really；
Step 6: in place by prefabricated crossbeam transhipment, grouping carries out assembled connection, and multiple using laser range finder
The length of crossbeam described in core；
Step 7: lifting the crossbeam, and the cross beam edges section of the crossbeam is directly welded on the quarter line pillaring of the steel column,
The crossbeam straight section of the crossbeam and the capital pillar of the intermediolateral column of the steel column are temporarily bolted, recycle crane described
The crossbeam straight section of crossbeam carries out secondary bolt after adjusting to required negative degree of speeding, and finally carries out at welded connecting and anti-corrosion in junction
Reason observes the negative sag value of crossbeam with digital display horizontal rule in welding in real time.
Wherein, the sequencing of the step 3 and step 4 can be exchanged, and can also carry out simultaneously.
Embodiment 2
As shown in Figure 1, a kind of hard crossbeam of the contact net of welded connecting, including several steel columns, the steel column include two
Quarter line pillaring 1 and several intermediolateral columns 2 are equipped with capital pillar 3 at the top of the intermediolateral column 2.The hard crossbeam of contact net further includes having
Several crossbeams, the crossbeam include cross beam edges section 6 and crossbeam straight section 7, and the cross beam edges section 6 and crossbeam straight section 7 pass through connection
The assembled connection of casing 4.
The steel column and crossbeam are precast construction part, the absolute altitude on the basis 8 that the height of the steel column is obtained according to measurement
It is determined, the centre distance on two bases 8 that the length of the crossbeam is obtained according to measurement is determined, and the negative of the crossbeam speeds
Degree is determined according to crossbeam vertical load suffered under normal use operating condition.Basic 8 absolute altitude is surveyed using level
It measures, the centre distance on two basis 8 is obtained using laser range finder and level measurement measurement.
The cross beam edges section 6 and 1 being directly welded to connect of quarter line pillaring, the crossbeam straight section 7 and the capital pillar 3 are logical
After crossing the connection of bolt 5, then it is welded to connect.
Above embodiments are only to illustrate the present invention and not limit the technical scheme described by the invention, although this explanation
The present invention has been described in detail referring to above-mentioned each embodiment for book, but the present invention is not limited to above-mentioned specific implementation
Mode, therefore any couple of present invention modifies or equivalent replacement；And the technical side of all spirit and scope for not departing from invention
Case and its improvement, are intended to be within the scope of the claims of the invention.
Claims (10)
1. a kind of construction method of the hard crossbeam of the contact net of welded connecting, which comprises the following steps:
Step 1: basis pours, and when construction ensures the center line on each basis point-blank, and every using level measurement
The absolute altitude on a basis, using the centre distance between the two neighboring basis of laser range finder and level measurement；
Step 2: it is born needed for calculating the crossbeam of hard crossbeam according to hard crossbeam vertical load suffered under normal use operating condition
Degree of speeding；
Step 3: the foundation elevation obtained according to step 1 measurement determines the height of every steel column of hard crossbeam, and carries out prefabricated；
Step 4: according to the centre distance on two bases that the step 1 measurement obtains, the length of every group of crossbeam of hard crossbeam is determined
Degree, and according to the prefabricated crossbeam of negative degree of speeding that the step 2 is calculated；
Step 5: by the prefabricated steel column be fixed on it is described on the basis of, and using pole centralizing device or crowbar to steel column position
It sets and is corrected；
Step 6: in place by prefabricated crossbeam transhipment, grouping carries out assembled connection, and checks institute using laser range finder
State the length of crossbeam；
Step 7: lifting the crossbeam, and the cross beam edges section of the crossbeam is directly welded on the quarter line pillaring of the steel column, by institute
The capital pillar of the crossbeam straight section and the intermediolateral column of the steel column of stating crossbeam is temporarily bolted, and recycles crane by the crossbeam
Crossbeam straight section adjust to required negative degree of speeding after carry out secondary bolt, be finally welded to connect in junction, used in welding
Digital display horizontal rule observes the negative sag value of crossbeam in real time.
2. a kind of construction method of the hard crossbeam of contact net of welded connecting according to claim 1, which is characterized in that described
In step 1: ensuring the center line on each basis using transit survey point-blank.
3. a kind of construction method of the hard crossbeam of contact net of welded connecting according to claim 1, which is characterized in that described
In step 2: the vertical load includes crossbeam self weight, maintenance load and dead load.
4. a kind of construction method of the hard crossbeam of contact net of welded connecting according to claim 3, which is characterized in that described
In step 2: the dead load is the load of generation due to contact net self weight after suspension installing contact net.
5. a kind of construction method of the hard crossbeam of contact net of welded connecting according to claim 1, which is characterized in that described
In step 5: being measured using laser range finder and level meter to the steel column installation site, it is ensured that the steel column is in fair line
The position in road direction and horizontal path direction is correct.
6. a kind of construction method of the hard crossbeam of contact net of -5 any welded connectings, feature exist according to claim 1
In in the step 7: after the completion of the crossbeam and steel column welded connecting, also having carried out preservative treatment.
7. a kind of hard crossbeam of the contact net of welded connecting, which is characterized in that including several steel columns, in adjacent two steel columns
Between be connected with crossbeam, the steel column and crossbeam are precast construction part, the basis that the height of the steel column is obtained according to measurement
Absolute altitude is determined, and the centre distance on two bases that the length of the crossbeam is obtained according to measurement is determined, the crossbeam
Negative degree of speeding is determined according to crossbeam vertical load suffered under normal use operating condition.
8. a kind of hard crossbeam of contact net of welded connecting according to claim 7, which is characterized in that the foundation elevation is adopted
It is obtained with level measurement, the centre distance on two basis is obtained using laser range finder and level measurement measurement.
9. a kind of hard crossbeam of contact net of welded connecting according to claim 7, which is characterized in that the steel column includes side
Pillar and intermediolateral column are equipped with capital pillar in the top of the intermediolateral column, and the crossbeam includes cross beam edges section and crossbeam straight section, institute
It states cross beam edges section and is connected with crossbeam straight section by connecting sleeve assembly, the cross beam edges section and the quarter line pillaring are welded to connect, institute
It is welded to connect after stating crossbeam straight section and capital pillar bolt.
10. according to a kind of hard crossbeam of contact net of any welded connecting of claim 7-9, which is characterized in that the crossbeam
It constructs to obtain according to a kind of construction method of the hard crossbeam of contact net of any welded connecting of claim 1-6 with steel column.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559265.8A CN110145159B (en) | 2019-06-25 | 2019-06-25 | Welding connection contact net hard cross beam and construction method thereof |
| DE212020000443.9U DE212020000443U1 (en) | 2019-06-25 | 2020-06-23 | Welded hard cross member of an overhead contact line system |
| PCT/CN2020/097591 WO2020259469A1 (en) | 2019-06-25 | 2020-06-23 | Welded overhead line system hard cross beam and construction method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910559265.8A CN110145159B (en) | 2019-06-25 | 2019-06-25 | Welding connection contact net hard cross beam and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110145159A true CN110145159A (en) | 2019-08-20 |
| CN110145159B CN110145159B (en) | 2024-02-27 |
Family
ID=67596413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910559265.8A Active CN110145159B (en) | 2019-06-25 | 2019-06-25 | Welding connection contact net hard cross beam and construction method thereof |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110145159B (en) |
| DE (1) | DE212020000443U1 (en) |
| WO (1) | WO2020259469A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110594536A (en) * | 2019-09-04 | 2019-12-20 | 河南省安装集团有限责任公司 | Verticality adjusting method for tower equipment |
| WO2020259469A1 (en) * | 2019-06-25 | 2020-12-30 | 中铁八局集团电务工程有限公司 | Welded overhead line system hard cross beam and construction method therefor |
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| CN210622423U (en) * | 2019-06-25 | 2020-05-26 | 中铁八局集团电务工程有限公司 | Welded connection's hard crossbeam of contact net |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020259469A1 (en) * | 2019-06-25 | 2020-12-30 | 中铁八局集团电务工程有限公司 | Welded overhead line system hard cross beam and construction method therefor |
| CN110594536A (en) * | 2019-09-04 | 2019-12-20 | 河南省安装集团有限责任公司 | Verticality adjusting method for tower equipment |
| CN110594536B (en) * | 2019-09-04 | 2020-12-11 | 河南省安装集团有限责任公司 | Verticality adjusting method for tower equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110145159B (en) | 2024-02-27 |
| WO2020259469A1 (en) | 2020-12-30 |
| DE212020000443U1 (en) | 2021-04-19 |
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