CN101327748A - Method for calculating and installing high-speed rail electrification catenary wrist-arm - Google Patents
Method for calculating and installing high-speed rail electrification catenary wrist-arm Download PDFInfo
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- CN101327748A CN101327748A CNA2008100480677A CN200810048067A CN101327748A CN 101327748 A CN101327748 A CN 101327748A CN A2008100480677 A CNA2008100480677 A CN A2008100480677A CN 200810048067 A CN200810048067 A CN 200810048067A CN 101327748 A CN101327748 A CN 101327748A
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Abstract
The present invention relates to a cantilever calculation and installation method of electrified contact line of high-speed railway, which comprises calculating the length of the flat cantilever, the length of the inclined cantilever pipe, the position of the positioning ring on the inclined cantilever and the cantilevers, preparing the cantilevers, and installing the cantilevers. The method belongs to the electromechanical field of rail traffic, in particular to the construction method of installing the flat cantilever and the inclined cantilever on the contact line of the high-speed railway. The method solves the problem that a large amount of line time is consumed in the construction because of the complex positioning of the flat cantilever and the inclined cantilever in the installation process. The construction method has high efficiency, makes full use of the time of non-closed points, accurately calculates and prepares the cantilevers, reduces a large amount of on-site adjusting time and railway holding time, and greatly improves the economic benefits.
Description
Technical field
High-speed rail electrification catenary wrist-arm of the present invention calculates and installation method, belongs to the dynamo-electric field of railway traffic, especially belongs to a kind of construction method that flat oblique wrist and arm is installed on the applied to high-speed railway touching net.
Background technology
At present, electrification railway contact net girt formula supporting and positioning device structural stability is poor, can not satisfy the needs of train high-speed cruising.The design of high-speed electric railway contact system cantilever structure is adopted with rigid support structure flat, the oblique wrist and arm location, has changed the strained condition of catenary, has eliminated contact system and has adjusted the defective of rocking under the running state.It is complicated that but flat, inclined bracket is located in installation process, will take a large amount of circuit time in work progress.In order to overcome the above problems, high-speed rail electrification catenary wrist-arm of the present invention calculates and installation method provides a kind of construction method efficiently.Utilize the non-enclosed point time significantly, bracket is calculated accurately with prefabricated, reduced a large amount of scenes and adjusted time and railway holding time, greatly improved economic benefit.
Summary of the invention
High-speed rail electrification catenary wrist-arm of the present invention calculates and installation method, comprising: the Horizontal Cantilever length computation, and the oblique wrist and arm length of tube calculates, and calculate the steady ring installation site on the oblique wrist and arm, and bracket calculates, prewired bracket, bracket is installed.
Above-mentioned Horizontal Cantilever length computation comprises: Horizontal Cantilever length computation when not raising and the Horizontal Cantilever length computation that has when raising.
Above-mentioned Horizontal Cantilever length computation when not raising, by repeatedly computational analysis, the contriver is surprised to find that to use following formula 1 to calculate very accurate,
P=δ H
s/ 1000+C
x-hG
c/ G
k-a+Q
z-H
p-L
s+ Y
p(formula 1)
C
x---place, pillar rail plane side gauge
H
s---the upper bed-plate setting height(from bottom)
δ---pillar inner edge slope
H---superelevation of outer rail
G
k---gauge
G
c---the catenary height
A---stagger
Q
z---Messenger Wire base level button is long
J
p---Horizontal Cantilever insulator length
Y
p---be the Horizontal Cantilever length in reserve
L
s---the upper bed-plate width.
The above-mentioned Horizontal Cantilever length that has when raising, by repeatedly computational analysis, the contriver is surprised to find that to use following formula 2 to calculate very accurate,
In the formula, T
GBe the Horizontal Cantilever value of raising.
Above-mentioned oblique wrist and arm length of tube calculates, and comprising: the oblique wrist and arm length computation when not raising, the oblique wrist and arm length computation when raising is arranged,
Above-mentioned oblique wrist and arm length when not raising, by repeatedly computational analysis, the contriver is surprised to find that to use following formula 3 to calculate very accurate,
Wherein, La=δ H
x/ 1000+C
x-hG
c/ G
k-a-L
TC+ Q
z-L
x
In the formula, H
x---lower bottom base setting height(from bottom) (containing the special type rotating base value of raising of deduction)
L
TC---the horizontal throw between bushing double eye and the Messenger Wire base
L
x---the lower bottom base width
The length L b of A ' B:
Lb＝H
D+H′-H
x-Q′Z-Q′
s
In the formula, H
D---the lead height
H '---system height
Q '
Z---Messenger Wire base is vertically detained length
Q '
S---bushing double eye is vertically detained length
In the formula, J
xBe insulator button material length.
The above-mentioned oblique wrist and arm length that has when raising, by repeatedly computational analysis, the contriver is surprised to find that to use following formula 4 to calculate very accurate,
Steady ring installation site on the above-mentioned oblique wrist and arm, by repeatedly computational analysis, the contriver is surprised to find that to use following formula 5 to calculate very accurate,
W
D=(H
D+ K
D-H
X)/sin (α)-J
X(formula 5),
Wherein
In the formula, H
DBe lead height, K
DBe locator openings value (the location hitch point is apart from the value at registration arm center) that Hx is lower bottom base setting height(from bottom) (containing the special type rotating base value of raising of deduction), α is oblique wrist and arm and horizontal angle.
Above-mentioned bracket calculates and comprises: the bracket calculating parameter is measured, Microcomputer Calculation.
Above-mentioned bracket calculating parameter measurement comprises: superelevation is measured, and draws the rail level red line, draws the cantilever base mark, and the pillar ramp rate is measured, and mast gauge is measured.
Above-mentioned superelevation measurement is meant: put the mirror point on the curb of distance pillar 15 ~ 20m, perpendicular good Sopwith staff is adjusted instrument on Zhi Zhudian place two rail levels, reads the Sopwith staff reading, and notes down; Two rail level Sopwith staff readings subtract each other and are the superelevation value.Or adopt special-purpose laser measuring apparatus to measure superelevation.
The above-mentioned rail level red line of drawing is meant: in existing present situation electrification part, be benchmark with the actual rail level of existing line; In the track remodelling part, according to the line design profile, measure each pillar place elevation jointly together with line construction unit, and on pillar, identify, draw good red line.
The above-mentioned cantilever base mark of drawing is meant: be labeled as benchmark with rail level, survey high bar or metallic tape is measured the upper and lower cantilever base setting height(from bottom) of pillar with cantilever base, and make marks.
Hard crossbeam handstand post will be measured earlier at the bottom of the beam the rail level height H, obtains on the a=H-H b=a-1.5m (on the davit the upper and lower base of bracket apart from 1.5m).
H
On----upper bed-plate is apart from the rail level setting height(from bottom)
The distance of the last cantilever base bolt of a-----at the bottom of the beam
The supreme cantilever base bolt of cantilever base bolt distance under the b-----
Before installation before the davit, the sign of on davit, drawing in advance, and raise 3cm (if the not meticulous whole road of circuit).
Above-mentioned pillar ramp rate measurement is meant: the observed reading of slope is as the criterion with the ramp rate on edge in the pillar.Theodolite should place the span midway location, at pillar when the field inclination is oblique, shank behind wire center distance and the tested pillar along consistent to the wire center distance.Place, edge horizontal positioned metallic tape behind the rail level line.Behind the pillar top along to rail level mark reading δ.When the line side tilted, shank was consistent to the wire center distance with tested pillar forward position apart from the wire center distance at pillar.At place, rail level line forward position horizontal positioned metallic tape.Behind the pillar top along to rail level mark reading δ.
Above-mentioned mast gauge measurement is meant: threshold value is the distance of pillar forward position, nearly rail rail level place to orbit centre, adopts the multi-functional contact net detection instrument of DJJ to measure mast gauge.Perhaps adopt tee-square, triangle rectangulate barrier, spirit level to measure the pillar gauge, measure gauge all to measure on the plane, rail level place.
Above-mentioned Microcomputer Calculation is meant in existing calculation procedure carries out the data typing, and cuit comprises station district, anchor segment number, pillar number, pillar gauge, stagger, superelevation, pillar ramp rate.Its B-C post gauge, superelevation, pillar ramp rate are the on-site measurement value.
Above-mentioned prewired bracket is meant: according to the prewired data sheet of bracket, measure cutting length, Horizontal Cantilever punch position and various parts installation site with metallic tape on operation post, and do sign with marking pen on bracket.Bracket is tightened with jig, cut off bracket with the no-tooth cutting mill.The pre-timing of bracket is examined earlier comprehensively and is checked whether the each several part size meets design requirement, and the construction permissible variation is 2mm, and fastening each fastener of torque-indicating wrench is used in the back.The pre-assigned back of bracket identifies bracket.
Above-mentioned bracket is installed and is carried out according to the following steps:
1. cantilever base is installed
1a is a benchmark with the rail level absolute altitude of measuring, and measures with steel ruler or height-gauge that designing requirement is installed, the lower bottom base position, does mark;
1b upper boom 1 people again is with safety strap, and marline ties safety strap, puts down marline, and the ground staff fastens base in advance after the assembling;
People's stay cord carries base to the installation site on the 1c bar;
1d two people cooperate, and the upper bed-plate bolt is worn to the field side by the line side, and a people sets upright upper bed-plate, and another people is with the pad nut, after the usefulness female wrench is fastening, check Tightening moment with torque spanner;
The 1e upper bed-plate installs, and two people unfasten one's seat-belt to climb to the 1m of lower bottom base position and tie safety strap;
1f presses the step of 1a-1d, and lower bottom base is installed.
2. insulator, assembling bracket are installed
2a is by erection schedule, utilizes to block name a person for a particular job required strut insulator and pre-assigned bracket and be transported to the building site, is placed on the other level land of pillar by sign;
2b assembles P, X bracket strut insulator by designing requirement;
2c wraps strut insulator with plastic cloth, ties up (two, in) three times with φ 2.0 iron wires, wraps with straw cord again, equally pricks three times with the bag plastic cloth with φ 2.0 iron wires;
2d connects P, X bracket by sign, twists good bolt and nut of clip, and bolt pin is worn to direction to the car.
3. bracket is installed
3a construction responsible official determines that the bracket numbering conforms to the place of erection;
3b two people's upper supporting columns, a people hangs up properly pulley at the upper bed-plate place, puts on big rope, and the upper bed-plate pin is taken out.Another people takes off the lower bottom base pin at the lower bottom base place;
3c land arrangement special messenger ties bracket with big rope, and all the other arrange two people's pulling cords, helps in face of bracket hangs on the spot, in hanging upright process, help by a people on the pillar, and mainly be to prevent from insulator is broken;
3d hangs the lower bottom base place at the oblique wrist and arm insulator, by the operating personnel of lower bottom base place insulator and lower bottom base are connected, the ground staff puts down big rope gently, the operating personnel of upper bed-plate place holds Horizontal Cantilever, the operating personnel works good up and down, when treating that the Horizontal Cantilever exhibition is put into correct position, Horizontal Cantilever and upper bed-plate are connected;
3e fixes mounted bracket and pillar, prevents swing, breaks insulator.
Beneficial effect of the present invention is:
1, speed of application is fast, and the busy line time is short;
2, improved work efficiency, reduced and to have put construction times;
3, guarantee carrying out in order of railway transportation and existing line transformation;
4, reduce construction cost, improve construction quality.
Description of drawings
Fig. 1 is a construction method schematic flow sheet of the present invention;
Fig. 2 is the position length scheme drawing of each structure of construction method of the present invention;
Fig. 3 is the bracket software for calculation parameter inputting interface of our company exploitation used among the present invention;
Fig. 4 is the bracket software for calculation computational data output interface of our company exploitation used among the present invention.
The specific embodiment
The following specific embodiment is used for the explanation invention, but is not used for limiting the scope of the invention.
Embodiment one
High-speed rail electrification catenary wrist-arm of the present invention calculates and installation method, as shown in Figure 1, comprising: Horizontal Cantilever 1 length computation, and oblique wrist and arm 2 registration arm length computation, calculate steady ring 5 installation sites on the oblique wrist and arm, prewired bracket, bracket is installed.
Described Horizontal Cantilever 1 length computation comprises: Horizontal Cantilever length computation when not raising and the Horizontal Cantilever length computation that has when raising.
Described Horizontal Cantilever length computation when not raising, adopt following formula:
P＝δ·H
s/1000+C
x-h·G
c/G
k-a+Q
z-J
p-L
s+Y
p
The described Horizontal Cantilever length that has when raising uses following formula to calculate
Described oblique wrist and arm length of tube calculates, and comprising: the oblique wrist and arm length computation when not raising, the oblique wrist and arm length computation when raising is arranged,
Described oblique wrist and arm length when not raising uses following formula to calculate,
Wherein, La=δ H
x/ 1000+C
x-hG
c/ G
k-a-L
TC+ Q
z-L
x
In the formula, H
x---lower bottom base setting height(from bottom) (containing the special type rotating base value of raising of deduction)
L
TC---the horizontal throw between bushing double eye and the Messenger Wire base 4
L
x---the lower bottom base width
The length L b of A ' B:
Lb＝H
D+H′-H
x-Q′
Z-Q′
S
In the formula, H
D---the lead height
H '---system height
Q '
Z---Messenger Wire base 4 vertical buttons are long
Q '
S---bushing double eye is vertically detained length
In the formula, J
xBe insulator button material length.
The described oblique wrist and arm length that has when raising uses following formula to calculate
Steady ring installation site on the described oblique wrist and arm uses following formula to calculate
W
D＝(H
D+K
D-H
X)/sin(α)-J
X，
Wherein
In the formula, H
DBe lead height, K
DFor steady arm 3 opening values, promptly locate the value of hitch point apart from registration arm 5 centers, Hx is lower bottom base setting height(from bottom) (containing the special type rotating base value of raising of deduction), α is oblique wrist and arm and horizontal angle.
Described bracket calculates and comprises: the bracket calculating parameter determines that the back input parameter adopts Microcomputer Calculation.
The measurement of described bracket calculating parameter comprises: superelevation is measured, and draws the rail level red line, draws the cantilever base mark, and the pillar ramp rate is measured, and mast gauge is measured.
Described superelevation measurement is meant: put the mirror point on the curb of distance pillar 15 ~ 20m, perpendicular good Sopwith staff is adjusted instrument on Zhi Zhudian place two rail levels, reads the Sopwith staff reading, and notes down; Two rail level Sopwith staff readings subtract each other and are the superelevation value.Or adopt special-purpose laser measuring apparatus to measure superelevation.
Described stroke of rail level red line is meant: in existing present situation electrification part, be benchmark with the actual rail level of existing line; In the track remodelling part, according to the line design profile, measure each pillar place elevation jointly together with line construction unit, and on pillar, identify, draw good red line.
Described stroke of cantilever base mark is meant: be labeled as benchmark with rail level, survey high bar or metallic tape is measured the upper and lower cantilever base setting height(from bottom) of pillar with cantilever base, and make marks.
Hard crossbeam handstand post will be measured earlier at the bottom of the beam the rail level height H, obtains on the a=H-H b=a-1.5m (on the davit the upper and lower base of bracket apart from 1.5m).
H
On----upper bed-plate is apart from the rail level setting height(from bottom)
The distance of the last cantilever base bolt of a-----at the bottom of the beam
The supreme cantilever base bolt of cantilever base bolt distance under the b-----
Before installation before the davit, the sign of on davit, drawing in advance, and raise 3cm (if the not meticulous whole road of circuit).
The measurement of described pillar ramp rate is meant: the observed reading of slope is as the criterion with the ramp rate on edge in the pillar.Theodolite should place the span midway location, at pillar when the field inclination is oblique, shank behind wire center distance and the tested pillar along consistent to the wire center distance.Place, edge horizontal positioned metallic tape behind the rail level line.Behind the pillar top along to rail level mark reading δ.When the line side tilted, shank was consistent to the wire center distance with tested pillar forward position apart from the wire center distance at pillar.At place, rail level line forward position horizontal positioned metallic tape.Behind the pillar top along to rail level mark reading δ.
Described mast gauge measurement is meant: threshold value is the distance of pillar forward position, nearly rail rail level place to orbit centre, adopts the multi-functional contact net detection instrument of DJJ to measure mast gauge.Perhaps adopt tee-square, triangle rectangulate barrier, spirit level to measure the pillar gauge, measure gauge all to measure on the plane, rail level place.
Described prewired bracket is meant: according to the prewired data sheet of bracket, measure cutting length, Horizontal Cantilever punch position and various parts installation site with metallic tape on operation post, and do sign with marking pen on bracket.Bracket is tightened with jig, cut off bracket with the no-tooth cutting mill.The pre-timing of bracket is examined earlier comprehensively and is checked whether the each several part size meets design requirement, and the construction permissible variation is 2mm, and fastening each fastener of torque-indicating wrench is used in the back.The pre-assigned back of bracket identifies bracket.
Described bracket is installed and is carried out according to the following steps:
1. cantilever base is installed
1a is a benchmark with the rail level absolute altitude of measuring, and measures with steel ruler or height-gauge that designing requirement is installed, the lower bottom base position, does mark;
1b upper boom 1 people again is with safety strap, and marline ties safety strap, puts down marline, and the ground staff fastens base in advance after the assembling;
People's stay cord carries base to the installation site on the 1c bar;
1d two people cooperate, and the upper bed-plate bolt is worn to the field side by the line side, and a people sets upright upper bed-plate, and another people is with the pad nut, after the usefulness female wrench is fastening, check Tightening moment with torque spanner;
The 1e upper bed-plate installs, and two people unfasten one's seat-belt to climb to the 1m of lower bottom base position and tie safety strap;
1f presses the step of 1a-1d, and lower bottom base is installed.
2. insulator, assembling bracket are installed
2a is by erection schedule, utilizes to block name a person for a particular job required strut insulator and pre-assigned bracket and be transported to the building site, is placed on the other level land of pillar by sign;
2b assembles P, X bracket strut insulator by designing requirement;
2c wraps strut insulator with plastic cloth, ties up (two, in) three times with φ 2.0 iron, wraps with straw cord again, equally pricks three times with the bag plastic cloth with φ 2.0 iron wires;
2d connects P, X bracket by sign, twists good bolt and nut of clip, and bolt pin is worn to direction to the car.
3. bracket is installed
3a construction responsible official determines that the bracket numbering conforms to the place of erection;
3b two people's upper supporting columns, a people hangs up properly pulley at the upper bed-plate place, puts on big rope, and the upper bed-plate pin is taken out.Another people takes off the lower bottom base pin at the lower bottom base place;
3c land arrangement special messenger ties bracket with big rope, and all the other arrange two people's pulling cords, helps in face of bracket hangs on the spot, in hanging upright process, help by a people on the pillar, and mainly be to prevent from insulator is broken;
3d hangs the lower bottom base place at the oblique wrist and arm insulator, by the operating personnel of lower bottom base place insulator and lower bottom base are connected, the ground staff puts down big rope gently, the operating personnel of upper bed-plate place holds Horizontal Cantilever, the operating personnel works good up and down, when treating that the Horizontal Cantilever exhibition is put into correct position, Horizontal Cantilever and upper bed-plate are connected;
3e fixes mounted bracket and pillar, prevents swing, breaks insulator.
Embodiment two
High-speed rail electrification catenary wrist-arm of the present invention calculates and installation method, as shown in Figure 1, comprising: Horizontal Cantilever 1 length computation, and oblique wrist and arm 2 registration arm length computation, calculate steady ring 5 installation sites on the oblique wrist and arm, prewired bracket, bracket is installed.
When bracket was not raised, described Horizontal Cantilever 1 length computation adopted following formula:
P＝δ·H
s/1000+C
x-h·G
c/G
k-a+Q
z-J
p-L
s+Y
p
Described oblique wrist and arm 2 length computation adopt following formula:
Wherein, La=δ H
x/ 1000+C
x-hG
c/ G
k-a-L
TC+ Q
z-L
x
In the formula, H
x---lower bottom base setting height(from bottom) (containing the special type rotating base value of raising of deduction)
L
TC---the horizontal throw between bushing double eye and the Messenger Wire base 4
L
x---the lower bottom base width
The length L b of A ' B:
Lb＝H
D+H′-H
x-Q′
Z-Q′
S
In the formula, H
D---the lead height
H '---system height
Q '
Z---the vertical button of Messenger Wire base (4) is long
Q '
S---bushing double eye is vertically detained length
In the formula, J
xBe insulator button material length.
Steady ring 5 installation sites on the described oblique wrist and arm:
W
D＝(W
D+K
D-H
X)/sin(α)-J
X，
Determine each design parameters: H in the above formula by measuring
D=6450; C
x=3100; G
k=1445; G
c=7850; δ=0.004; H=0; A=300; Q
z=40; J
p=670; Y
p=300; L
s=100; T
G=20; H
s=7800; H
x=6050; L
TC=300; L
x=100; H '=1400; Q '
Z=50; Q '
S=74; J
x=670; K
D=404, wherein unit is mm.
Utilize " the electrified calculation on Construction of high speed railway system " (Fig. 3, Fig. 4) to calculate the prefabricated length P=2330mm of Horizontal Cantilever; Prefabricated length X=the 2267mm of oblique wrist and arm; Steady ring installation site W on the oblique wrist and arm
D=836mm.
Embodiment three
High-speed rail electrification catenary wrist-arm of the present invention calculates and installation method, as shown in Figure 1, comprising: Horizontal Cantilever 1 length computation, and oblique wrist and arm 2 registration arm length computation, calculate steady ring 5 installation sites on the oblique wrist and arm, prewired bracket, bracket is installed.
When bracket was raised, described Horizontal Cantilever 1 length computation adopted following formula:
Described oblique wrist and arm 2 length computation adopt following formula:
Wherein, La=δ H
x/ 1000+C
x-hG
c/ G
k-a-L
TC+ Q
z-L
x
In the formula, H
x---lower bottom base setting height(from bottom) (containing the special type rotating base value of raising of deduction)
L
TC---the horizontal throw between bushing double eye and the Messenger Wire base 4
L
x---the lower bottom base width
The length L b of A ' B:
Lb＝H
D+H′-H
x-Q′
Z-Q′
S
In the formula, H
D---the lead height
H '---system height
Q '
Z---the vertical button of Messenger Wire base (4) is long
Q '
S---bushing double eye is vertically detained length
In the formula, J
xBe insulator button material length.
Steady ring 5 installation sites on the described oblique wrist and arm:
W
D＝(H
D+K
D-H
X)/sin(α)-J
X，
Determine each design parameters of above formula: H by measuring
D=6450; C
x=3180; G
k=1445; G
c=7850; δ=0.006; H=50; A=-500; Q
z=40; J
p=670; Y
p=300; L
s=160; T
G=500; H
s=7800; H
x=6050; L
TC=300; L
x=160; H '=1400; Q '
Z=50; Q '
S=74; J
x=670; K
D=404, wherein unit is mm.
Utilize " the electrified calculation on Construction of high speed railway system " (Fig. 3, Fig. 4) to calculate the prefabricated length P=3461mm of Horizontal Cantilever; Prefabricated length X=the 3431mm of oblique wrist and arm; Steady ring installation site W on the oblique wrist and arm
D=1660mm.
Claims (6)
1, high-speed rail electrification catenary wrist-arm of the present invention calculates and installation method, it is characterized in that: comprise the steps:
1) Horizontal Cantilever length computation principle;
2) oblique wrist and arm length computation principle;
3) principle is calculated in the steady ring installation site on the oblique wrist and arm;
4) the bracket calculating parameter is determined and the software for calculation operation;
5) prewired bracket;
6) bracket is installed.
2, high-speed rail electrification catenary wrist-arm according to claim 1 calculates and installation method, and it is characterized in that: described Horizontal Cantilever length computation principle comprises: Horizontal Cantilever length computation when not raising and the Horizontal Cantilever length computation that has when raising.
Described Horizontal Cantilever length when not raising is used following formula calculating:
P＝δ·H
s/1000+C
x-h·G
c/G
k-a+Q
z-J
p-L
s+Y
p
G
x---place, pillar rail plane side gauge,
H
s---the upper bed-plate setting height(from bottom),
δ---pillar inner edge slope,
H---superelevation of outer rail,
G
k---gauge,
G
c---the catenary height,
A---stagger,
Q
z---Messenger Wire base level button is long,
J
p---Horizontal Cantilever insulator length,
Y
p---be the Horizontal Cantilever length in reserve,
L
s---the upper bed-plate width;
Described have the Horizontal Cantilever length when raising to use following formula to calculate:
In the formula, T
GBe the Horizontal Cantilever value of raising.
3, high-speed rail electrification catenary wrist-arm according to claim 1 calculates and installation method, and it is characterized in that: described oblique wrist and arm length computation principle comprises: the oblique wrist and arm length computation when not raising, the oblique wrist and arm length computation when raising is arranged,
Described oblique wrist and arm length when not raising is used following formula calculating:
Wherein, La=δ H
x/ 1000+C
x-hG
c/ G
k-a-L
TC+ Q
z-L
x,
In the formula, H
x---the lower bottom base setting height(from bottom),
L
TC---the horizontal throw between bushing double eye and the Messenger Wire base,
L
x---the lower bottom base width,
Lb＝H
D+H′-H
x-Q′
Z-Q′
S，
In the formula, H
D---the lead height,
H '---system height,
Q '
Z---Messenger Wire base is vertically detained length
Q '
S---bushing double eye is vertically detained length,
In the formula, J
xBe insulator button material length.
Described have the oblique wrist and arm length when raising to use following formula to calculate:
4, high-speed rail electrification catenary wrist-arm according to claim 1 calculates and installation method, it is characterized in that: the steady ring installation site uses following formula to calculate on the described oblique wrist and arm,
W
D＝(H
D+K
D-H
X)/sin(α)-J
X，
Wherein
In the formula, H
DBe lead height, K
DBe locator openings value, H
XBe the lower bottom base setting height(from bottom), α is oblique wrist and arm and horizontal angle.
5, high-speed rail electrification catenary wrist-arm according to claim 1 calculates and installation method, it is characterized in that: described bracket calculates and comprises: the bracket calculating parameter is determined and the software for calculation operation;
The measurement of described bracket calculating parameter comprises: superelevation is measured, and draws the rail level red line, draws the cantilever base mark, and the pillar ramp rate is measured, and mast gauge is measured;
Described superelevation measurement is meant: put the mirror point on the curb of distance pillar 15～20m, perpendicular good Sopwith staff is adjusted instrument on Zhi Zhudian place two rail levels, reads the Sopwith staff reading, and notes down; Two rail level Sopwith staff readings subtract each other and are the superelevation value, or adopt special-purpose laser measuring apparatus to measure superelevation;
Described stroke of rail level red line is meant: in existing present situation electrification part, be benchmark with the actual rail level of existing line; In the track remodelling part, according to the line design profile, measure each pillar place elevation jointly together with line construction unit, and on pillar, identify, draw good red line;
Described stroke of cantilever base mark is meant: be labeled as benchmark with rail level, survey high bar or metallic tape is measured the upper and lower cantilever base setting height(from bottom) of pillar with cantilever base, and make marks;
Hard crossbeam handstand post will be measured earlier at the bottom of the beam the rail level height H, obtains a=H-H
On, b=a-1.5m,
H
On----upper bed-plate is apart from the rail level setting height(from bottom),
The distance of the last cantilever base bolt of a-----at the bottom of the beam,
The supreme cantilever base bolt of cantilever base bolt distance under the b-----,
Before installation before the davit, the sign of on davit, drawing in advance, and raise 3cm;
The measurement of described pillar ramp rate is meant: the observed reading of slope is as the criterion with the ramp rate on edge in the pillar, theodolite should place the span midway location, at pillar when the field inclination is oblique, shank behind wire center distance and the tested pillar along consistent to the wire center distance, place, edge horizontal positioned metallic tape behind the rail level line, behind the pillar top along to rail level mark reading δ, at pillar when the line side tilts, shank is consistent to the wire center distance with tested pillar forward position apart from the wire center distance, at rail level line forward position place horizontal positioned metallic tape, behind the pillar top along to rail level mark reading δ;
Described mast gauge measurement is meant: threshold value is the distance of pillar forward position, nearly rail rail level place to orbit centre, adopt the multi-functional contact net detection instrument of DJJ to measure mast gauge, perhaps adopt tee-square, triangle rectangulate barrier, spirit level to measure the pillar gauge, measure gauge all to measure on the plane, rail level place;
The operation of described software for calculation is meant in the bracket software for calculation of my company's stand-alone development carries out the data typing, and cuit comprises station district, anchor segment number, pillar number, pillar gauge, stagger, superelevation, pillar ramp rate.Its B-C post gauge, superelevation, pillar ramp rate are the on-site measurement value.
6, high-speed rail electrification catenary wrist-arm according to claim 1 calculates and installation method, it is characterized in that: described prewired bracket is meant: according to the prewired data sheet of bracket, on operation post, measure cutting length with metallic tape, Horizontal Cantilever punch position and various parts installation site, and on bracket, do sign with marking pen, bracket is tightened with jig, cut off bracket with the no-tooth cutting mill, the pre-timing of bracket, examine earlier comprehensively and check whether the each several part size meets design requirement, the construction permissible variation is 2mm, fastening each fastener of torque-indicating wrench is used in the back, and the pre-assigned back of bracket identifies bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100480677A CN101327748A (en) | 2008-06-18 | 2008-06-18 | Method for calculating and installing high-speed rail electrification catenary wrist-arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100480677A CN101327748A (en) | 2008-06-18 | 2008-06-18 | Method for calculating and installing high-speed rail electrification catenary wrist-arm |
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| CN101327748A true CN101327748A (en) | 2008-12-24 |
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|---|---|---|---|
| CNA2008100480677A Pending CN101327748A (en) | 2008-06-18 | 2008-06-18 | Method for calculating and installing high-speed rail electrification catenary wrist-arm |
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Cited By (15)
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| CN102145662A (en) * | 2010-12-30 | 2011-08-10 | 中铁三局集团电务工程有限公司 | Arched wrist arm of tunnel and measuring and determining method thereof |
| CN102358212A (en) * | 2011-09-09 | 2012-02-22 | 中铁建电气化局集团南方工程有限公司 | Construction method of dropper in full-compensatory elastic chain type hanger in contact network of rapid transit railway |
| CN104260643A (en) * | 2014-09-30 | 2015-01-07 | 中国铁建电气化局集团第一工程有限公司 | Windproof-type overall steel bracket mounting method |
| CN105740539A (en) * | 2016-01-29 | 2016-07-06 | 中铁第一勘察设计院集团有限公司 | Bracket preassembling method based on parameterized parametric constraint model |
| CN105904998A (en) * | 2016-04-14 | 2016-08-31 | 中铁二十二局集团电气化工程有限公司 | Construction method for eight-span overlapping electrical sectioning renovation |
| CN107084835A (en) * | 2017-05-04 | 2017-08-22 | 中铁十二局集团有限公司 | A kind of bracket pre-configuration data detection means and its detection method |
| CN108176979A (en) * | 2018-02-23 | 2018-06-19 | 李鹏飞 | The clip of clip erecting device and railway contact line bracket production line assembles device |
| CN109034722A (en) * | 2018-06-14 | 2018-12-18 | 中铁电气化局集团有限公司 | High-speed railway touching net computing system, method and computer equipment |
| CN109878380A (en) * | 2019-04-04 | 2019-06-14 | 中铁建大桥工程局集团电气化工程有限公司 | A kind of metro depot rigid suspension OCS trackless pipeline construction method |
| CN111703338A (en) * | 2020-05-14 | 2020-09-25 | 中国国家铁路集团有限公司 | BIM-based catenary cantilever pre-configuration method and device |
| CN111822983A (en) * | 2020-07-31 | 2020-10-27 | 中铁建电气化局集团第一工程有限公司 | Flat and inclined cantilever assembling equipment for pre-assembled simplified cantilever |
| CN111822981A (en) * | 2020-07-31 | 2020-10-27 | 中铁建电气化局集团第一工程有限公司 | Flat and inclined cantilever assembling device for machining simplified cantilever |
| CN112124338A (en) * | 2020-09-22 | 2020-12-25 | 中铁电气化局集团有限公司 | Intelligent measurement marking trolley for rail surface standard line |
| CN113602155A (en) * | 2021-07-01 | 2021-11-05 | 中铁十二局集团电气化工程有限公司 | Contact net hardware fitting installation and pillar assembling synchronous construction method |
| CN108909531B (en) * | 2018-08-02 | 2023-11-21 | 中铁高铁电气装备股份有限公司 | Integral type anti-location support hangs cantilever device |
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| CN102145662A (en) * | 2010-12-30 | 2011-08-10 | 中铁三局集团电务工程有限公司 | Arched wrist arm of tunnel and measuring and determining method thereof |
| CN102358212A (en) * | 2011-09-09 | 2012-02-22 | 中铁建电气化局集团南方工程有限公司 | Construction method of dropper in full-compensatory elastic chain type hanger in contact network of rapid transit railway |
| CN104260643A (en) * | 2014-09-30 | 2015-01-07 | 中国铁建电气化局集团第一工程有限公司 | Windproof-type overall steel bracket mounting method |
| CN104260643B (en) * | 2014-09-30 | 2016-08-17 | 中国铁建电气化局集团第一工程有限公司 | A kind of wind-proof overall steel bracket installation method |
| CN105740539B (en) * | 2016-01-29 | 2018-12-14 | 中铁第一勘察设计院集团有限公司 | The pre- method of completing the square of bracket based on parametrization geometrical constraint model |
| CN105740539A (en) * | 2016-01-29 | 2016-07-06 | 中铁第一勘察设计院集团有限公司 | Bracket preassembling method based on parameterized parametric constraint model |
| CN105904998A (en) * | 2016-04-14 | 2016-08-31 | 中铁二十二局集团电气化工程有限公司 | Construction method for eight-span overlapping electrical sectioning renovation |
| CN105904998B (en) * | 2016-04-14 | 2019-09-10 | 中铁二十二局集团电气化工程有限公司 | The construction method of eight across overlap electricity split-phase transformations |
| CN107084835A (en) * | 2017-05-04 | 2017-08-22 | 中铁十二局集团有限公司 | A kind of bracket pre-configuration data detection means and its detection method |
| CN107084835B (en) * | 2017-05-04 | 2023-10-17 | 中铁十二局集团有限公司 | Cantilever pre-configuration data detection device and detection method thereof |
| CN108176979A (en) * | 2018-02-23 | 2018-06-19 | 李鹏飞 | The clip of clip erecting device and railway contact line bracket production line assembles device |
| CN108176979B (en) * | 2018-02-23 | 2024-03-29 | 湖南高岸铁路装备有限公司 | Clip installation device and clip assembly device of railway contact net cantilever production line |
| CN109034722A (en) * | 2018-06-14 | 2018-12-18 | 中铁电气化局集团有限公司 | High-speed railway touching net computing system, method and computer equipment |
| CN109034722B (en) * | 2018-06-14 | 2021-01-05 | 中铁电气化局集团有限公司 | High-speed railway contact net computing system and method and computer equipment |
| CN108909531B (en) * | 2018-08-02 | 2023-11-21 | 中铁高铁电气装备股份有限公司 | Integral type anti-location support hangs cantilever device |
| CN109878380A (en) * | 2019-04-04 | 2019-06-14 | 中铁建大桥工程局集团电气化工程有限公司 | A kind of metro depot rigid suspension OCS trackless pipeline construction method |
| CN109878380B (en) * | 2019-04-04 | 2022-05-13 | 中铁建大桥工程局集团电气化工程有限公司 | Subway vehicle section flexible contact net track-free construction method |
| CN111703338A (en) * | 2020-05-14 | 2020-09-25 | 中国国家铁路集团有限公司 | BIM-based catenary cantilever pre-configuration method and device |
| CN111822981A (en) * | 2020-07-31 | 2020-10-27 | 中铁建电气化局集团第一工程有限公司 | Flat and inclined cantilever assembling device for machining simplified cantilever |
| CN111822983A (en) * | 2020-07-31 | 2020-10-27 | 中铁建电气化局集团第一工程有限公司 | Flat and inclined cantilever assembling equipment for pre-assembled simplified cantilever |
| CN112124338A (en) * | 2020-09-22 | 2020-12-25 | 中铁电气化局集团有限公司 | Intelligent measurement marking trolley for rail surface standard line |
| CN113602155A (en) * | 2021-07-01 | 2021-11-05 | 中铁十二局集团电气化工程有限公司 | Contact net hardware fitting installation and pillar assembling synchronous construction method |
| CN113602155B (en) * | 2021-07-01 | 2023-02-10 | 中铁十二局集团电气化工程有限公司 | Contact net hardware fitting installation and pillar assembling synchronous construction method |
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Open date: 20081224 |