CN104109999B - The construction method of bridge tower thwart beam - Google Patents
The construction method of bridge tower thwart beam Download PDFInfo
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- CN104109999B CN104109999B CN201410292483.7A CN201410292483A CN104109999B CN 104109999 B CN104109999 B CN 104109999B CN 201410292483 A CN201410292483 A CN 201410292483A CN 104109999 B CN104109999 B CN 104109999B
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Abstract
The invention discloses the construction method of a kind of bridge tower thwart beam, relate to bridge construction engineering field, the method comprises the following steps: first lifting cross beam support, complete entablature construction, then overarm brace is transferred the construction location to middle cross beam, construction middle cross beam, after middle cross beam has been constructed, then transfers overarm brace to ground dismounting.This construction method is by changing the sequence of construction of traditional bridge tower thwart beam, the installation and the dismounting that make overarm brace all have only to once, simplify bridge tower thwart beam working procedure, save the activity duration installed with remove overarm brace, thus the beneficially rapid construction of bridge, improve bridge construction efficiency.
Description
Technical field
The present invention relates to bridge construction engineering field, be specifically related to the construction of a kind of bridge tower thwart beam
Method.
Background technology
H bridge tower has multilayer crossbeam, and king-tower two king-post opposite vertically or tends to vertical, passes
System H bridge tower in, entablature casting process, be usually first pour middle king-post, in setting up
Overarm brace, completes middle cross beam and pours, and then removes middle cross beam support, pours upper king-post strut, take
If king-post entablature support, complete entablature and pour, finally remove entablature support.The method
Although can effectively complete in bridge tower, the pouring of entablature, but have the disadvantage in that
1, overarm brace is installed and dismounting is required to twice, and operation is loaded down with trivial details, time-consuming；
2, overarm brace substantially can only use the lifting of scattered rod member to install and remove, and lifting is often；
3, for having the H bridge tower of suspension cable, it is necessary to two king-posts and entablature have all been poured
Main cable construction just can be proceeded to after one-tenth.
Summary of the invention
The invention aims to overcome the deficiency of above-mentioned background technology, it is provided that a kind of bridge tower is horizontal
The construction method of beam, reduces the installation of overarm brace and removes number of times, thus beneficially bridge is fast
Speedization is constructed, and improves bridge construction efficiency.
The present invention provides the construction method of a kind of bridge tower thwart beam, described bridge tower to include being oppositely arranged
Side that first king-post and the second king-post, the first king-post and the second king-post are relative, the second king-post with
The side that first king-post is relative is inner side；Described construction method comprises the following steps:
Step one: in the inner side of the first king-post, buries first underground along the direction being perpendicular to the first king-post
Built-in fitting and the 3rd built-in fitting, the first built-in fitting is positioned at the top of the 3rd built-in fitting；At the second tower
The inner side of post, buries underground pre-buried with the second built-in fitting and the 4th along the direction being perpendicular to the second king-post
Part；Second built-in fitting and the first built-in fitting are oppositely arranged, the 4th built-in fitting and the 3rd built-in fitting phase
To setting；
First built-in fitting, the second built-in fitting, the 3rd built-in fitting and the 4th built-in fitting all include pre-buried
End and exposed junction, the pre-buried end of the first built-in fitting and the 3rd built-in fitting all imbeds the interior of the first king-post
Portion, the exposed junction of the first built-in fitting and the 3rd built-in fitting all exposes to the inner side of the first king-post；The
The pre-buried end of two built-in fittings and the 4th built-in fitting all imbeds the inside of the second king-post, the second built-in fitting
With the inner side that the exposed junction of the 4th built-in fitting all exposes to the second king-post；
Exposed junction at the first built-in fitting welds the first steel plate, and the exposed junction at the second built-in fitting welds
Connecing the second steel plate, the exposed junction at the 3rd built-in fitting welds the 3rd steel plate, at the 4th built-in fitting
Exposed junction welding the 4th steel plate；
Step 2: the base angle of existing overarm brace both sides is respectively erected in the first steel plate and
The top of two steel plates；
Step 3: arrange end template at the top of the level frame of overarm brace, at the two of level frame
Side is respectively provided with side template；End template, two pieces of side templates, the first king-post and the second king-post are formed and water
Build space；In casting space, casting concrete forms entablature, at the one of entablature when pouring
The first installing hole and the second installing hole are reserved in side, and the opposite side at entablature reserves the 3rd installing hole
With the 4th installing hole；Entablature concrete setting, until concrete strength meets with elastic modelling quantity
After design requires, remove end template and side template, complete the construction of entablature；
Step 4: four punching continuous jacks are set at the top of entablature: connect and have the
First punching continuous jack of one steel strand wires, connection have the second punching of the second steel strand wires
Continuous jack, connect and have the 3rd punching continuous jack of the 3rd steel strand wires, connect and have the
4th punching continuous jack of four steel strand wires；
By two distribution beam: the first distribution beam, the second distribution beam are all hung at the water of overarm brace
The lower section of flatrack, by the first steel strand wires through the connection of the first installing hole and the first distribution beam, by the
Three steel strand wires connect through the 3rd installing hole and the first distribution beam；By the second steel strand wires through second
Installing hole and the second distribution beam connect, by the 4th steel strand wires through the 4th installing hole and the second distribution
Beam connects；
Step 5: carried by the first punching continuous jack and the 3rd punching continuous jack
Rise the first distribution beam, by the second punching continuous jack and the 4th punching continuous jack
Promote the second distribution beam；First distribution beam and the second distribution beam drive overarm brace to rise, and treat horizontal stroke
After the base angle of boom support both sides departs from the first steel plate and the second steel plate, excise the first steel plate and second
Steel plate；
Step 6: by under the first punching continuous jack and the 3rd punching continuous jack
Put the first distribution beam, by the second punching continuous jack and the 4th punching continuous jack
Transferring the second distribution beam, the first distribution beam and the second distribution beam drives overarm brace to transfer, by horizontal stroke
The base angle of boom support both sides is respectively erected in the 3rd steel plate and the top of the 4th steel plate；
Step 7: come again step 3 to step 5, by the upper horizontal stroke in step 3 to step 5
Beam is as middle cross beam；The first steel plate in step 5 is replaced with the 3rd steel plate, by step 5
The second steel plate replace with the 4th steel plate；
Step 8: after middle cross beam has been constructed, by transferring the first distribution beam and the second distribution beam
Overarm brace is transferred and removes to ground.
On the basis of technique scheme, in step 3 after forming casting space, watering
Build before casting concrete forms entablature in space, further comprising the steps of: at casting space
Interior applying prefabricating load, carries out precompressed to overarm brace, precompressed complete after removal prefabricating load.
On the basis of technique scheme, step 7 comprises the following steps:
End template is set at the top of overarm brace, is respectively provided with side template in the both sides of level frame；
End template, two pieces of side templates, the first king-post and the second king-post form casting space；Pouring sky
Interior casting concrete forms middle cross beam, and when pouring, the first installing hole is reserved in the side at middle cross beam
With the second installing hole, the opposite side at middle cross beam reserves the 3rd installing hole and the 4th installing hole；In
Crossbeam concrete setting, until after concrete strength and elastic modelling quantity meet design requirement, removing
End template and side template, complete the construction of middle cross beam；
Four punching continuous jacks are set at the top of middle cross beam: connect and have the first steel strand wires
The first punching continuous jack, connect and have the second punching of the second steel strand wires the most very heavy
Top, connection have the 3rd punching continuous jack of the 3rd steel strand wires, connection to have the 4th steel strand wires
The 4th punching continuous jack；
By two distribution beam: the first distribution beam, the second distribution beam are all hung at the water of overarm brace
The lower section of flatrack, by the first steel strand wires through the connection of the first installing hole and the first distribution beam, by the
Three steel strand wires connect through the 3rd installing hole and the first distribution beam；By the second steel strand wires through second
Installing hole and the second distribution beam connect, by the 4th steel strand wires through the 4th installing hole and the second distribution
Beam connects；
First is promoted by the first punching continuous jack and the 3rd punching continuous jack
Distribution beam, promotes the by the second punching continuous jack and the 4th punching continuous jack
Two distribution beam, the first distribution beam and the second distribution beam drive overarm brace to rise, and treat overarm brace
After the base angle of both sides departs from the 3rd steel plate and the 4th steel plate, excision the 3rd steel plate and the 4th steel plate.
On the basis of technique scheme, step 8 comprises the following steps:
First is transferred by the first punching continuous jack and the 3rd punching continuous jack
Distribution beam, transfers by the second punching continuous jack and the 4th punching continuous jack
Two distribution beam, the first distribution beam and the second distribution beam drive overarm brace to transfer, by overarm brace
Transfer and remove to ground.
On the basis of technique scheme, the center of described first installing hole, the second installing hole
The line of centres of center, the center of the 3rd installing hole and the 4th installing hole rectangular.
On the basis of technique scheme, described first built-in fitting, the second built-in fitting, the 3rd
Built-in fitting and the 4th built-in fitting are the reinforcing bar arranged in array.
Compared with prior art, advantages of the present invention is as follows:
(1) present invention changes traditional bridge tower beam sequence of construction, first lifting cross beam support,
Complete entablature construction, then overarm brace is transferred the construction location to middle cross beam, in construction
Crossbeam, after middle cross beam has been constructed, then transfers overarm brace to ground dismounting.So that
Installation and the dismounting of overarm brace all have only to once, simplify bridge tower thwart beam and pour operation, from
And saving the activity duration installed with remove overarm brace, it is simple to bridge tower thwart beam is rapid to be executed
Work, improves bridge construction efficiency.
(2) for having the H bridge tower of suspension cable, the present invention is used, owing to entablature is at middle horizontal stroke
Pouring complete before beam, entablature just can proceed to main cable construction after having poured, thus is conducive to being somebody's turn to do
The rapid construction of class bridge, improves the efficiency of construction of such bridge.
(3) present invention obviates the space that overarm brace is installed and removed by bridge tower thwart beam structure
Limiting, installation and the dismounting of overarm brace all can be carried out on ground, thus beneficially overarm brace
Fast Installation and dismounting, improve bridge construction efficiency.
Accompanying drawing explanation
Fig. 1 is to complete in the embodiment of the present invention after entablature pours, overarm brace to be positioned at
Structural representation time on one steel plate and the second steel plate；
Fig. 2 is the Fig. 1 sectional view along A-A direction；
Fig. 3 be the embodiment of the present invention is excised the first steel plate and the second steel plate after, crossbeam is propped up
Structural representation when frame is transferred to the 3rd steel plate and the 4th steel plate；
Fig. 4 be the embodiment of the present invention excises the 3rd steel plate and the 4th steel plate after, crossbeam is propped up
The structural representation to ground transferred by frame.
Reference: 1-the first king-post, 2-entablature, 3-punching continuous jack, 4-
Two king-posts, 5-overarm brace, 6-distribution beam, 7-the first steel plate, 8-the first built-in fitting, 9-
Two steel plates, 10-the second built-in fitting, 11-the 3rd steel plate, 12-the 3rd built-in fitting, 13-the 4th steel
Plate, 14-the 4th built-in fitting, 15-middle cross beam.
Detailed description of the invention
Below in conjunction with the accompanying drawings and the present invention is described in further detail by specific embodiment.
The construction method of bridge tower thwart beam that the embodiment of the present invention provides, bridge tower includes being oppositely arranged
First king-post 1 and the second king-post 4, side that the first king-post 1 is relative with the second king-post 4,
The side that two king-posts 4 are relative with the first king-post 1 is inner side；This construction method includes following step
Rapid:
S1: in the inner side of the first king-post 1, buries first underground along the direction being perpendicular to the first king-post 1
Built-in fitting 8 and the 3rd built-in fitting 12, the first built-in fitting 8 is positioned at the top of the 3rd built-in fitting 12；
In the inner side of the second king-post 4, bury underground and the second built-in fitting along the direction being perpendicular to the second king-post 4
10 and the 4th built-in fitting 14；Second built-in fitting 10 is oppositely arranged with the first built-in fitting 8, and the 4th
Built-in fitting 14 is oppositely arranged with the 3rd built-in fitting 12；First built-in fitting the 8, second built-in fitting 10,
3rd built-in fitting 12 and the 4th built-in fitting 14 are the reinforcing bar arranged in array.
First built-in fitting the 8, second built-in fitting the 10, the 3rd built-in fitting 12 and the 4th built-in fitting 14
All including pre-buried end and exposed junction, the pre-buried end of the first built-in fitting 8 and the 3rd built-in fitting 12 is equal
Imbedding the inside of the first king-post 1, the exposed junction of the first built-in fitting 8 and the 3rd built-in fitting 12 is equal
Expose to the inner side of the first king-post 1；Second built-in fitting 10 and the pre-buried end of the 4th built-in fitting 14
All imbed the inside of the second king-post 4, the second built-in fitting 10 and exposed junction of the 4th built-in fitting 14
All expose to the inner side of the second king-post 4.
Exposed junction at the first built-in fitting 8 welds the first steel plate 7, at the second built-in fitting 10
Exposed junction welds the second steel plate 9, and the exposed junction at the 3rd built-in fitting 12 welds the 3rd steel plate 11,
Exposed junction at the 4th built-in fitting 14 welds the 4th steel plate 13.
S2: the base angle of existing overarm brace 5 both sides is respectively erected in the first steel plate 7 and
The top of two steel plates 9, sees shown in Fig. 1 and Fig. 2.
S3: arrange end template at the top of the level frame of overarm brace 5, in the both sides of level frame
It is respectively provided with side template；End template, two pieces of side templates, the first king-post 1 and the second king-post 4 are formed
Casting space；In casting space, casting concrete forms entablature 2, at entablature when pouring
The first installing hole and the second installing hole are reserved in the side of 2, and the opposite side at entablature 2 reserves
Three installing holes and the 4th installing hole；The center of the first installing hole, the center of the second installing hole,
The center of three installing holes and the line of centres of the 4th installing hole are rectangular；Entablature 2 concrete coagulates
Gu, until after concrete strength and elastic modelling quantity meet design requirement, removing end template and side form
Plate, completes the construction of entablature 2.
S4: four punching continuous jacks 3 are set at the top of entablature 2: connect and have the
First punching continuous jack of one steel strand wires, connection have the second punching of the second steel strand wires
Continuous jack, connect and have the 3rd punching continuous jack of the 3rd steel strand wires, connect and have the
4th punching continuous jack of four steel strand wires.
Two distribution beam 6: the first distribution beam, the second distribution beam are all hung at overarm brace 5
The lower section of level frame, the first steel strand wires through the first installing hole and the connection of the first distribution beam, the
Three steel strand wires connect through the 3rd installing hole and the first distribution beam；Second steel strand wires are through the second peace
Dress hole is connected with the second distribution beam, and the 4th steel strand wires connect through the 4th installing hole and the second distribution beam
Connect.
S5: promote the by the first punching continuous jack and the 3rd punching continuous jack
One distribution beam, is promoted by the second punching continuous jack and the 4th punching continuous jack
Second distribution beam, the first distribution beam and the second distribution beam drive overarm brace 5 to rise, and treat crossbeam
After the base angle of support 5 both sides departs from the first steel plate 7 and the second steel plate 9, excise the first steel plate 7
With the second steel plate 9.
S6: transfer by the first punching continuous jack and the 3rd punching continuous jack
One distribution beam, is transferred by the second punching continuous jack and the 4th punching continuous jack
Second distribution beam, the first distribution beam and the second distribution beam drive overarm brace 5 to transfer, by crossbeam
The base angle of support 5 both sides is respectively erected in the 3rd steel plate 11 and the top of the 4th steel plate 13, ginseng
As shown in Figure 3.
S7: come again step S3 to S5, using the entablature 2 in step S3 to S5 as
Middle cross beam 15；The first steel plate 7 in step S5 is replaced with the 3rd steel plate 11, by step
The second steel plate 9 in S5 replaces with the 4th steel plate 13, specifically includes following steps:
S701: arrange end template at the top of the level frame of overarm brace 5, at the two of level frame
Side is respectively provided with side template；End template, two pieces of side templates, first king-post 1 and second king-post 4 shapes
Become casting space；In casting space casting concrete formed middle cross beam 15, when pouring in
The first installing hole and the second installing hole are reserved in the side of crossbeam 15, at the opposite side of middle cross beam 15
Reserved 3rd installing hole and the 4th installing hole；In the center of the first installing hole, the second installing hole
The line of centres of the heart, the center of the 3rd installing hole and the 4th installing hole is rectangular；Middle cross beam 15
Concrete setting, until after concrete strength and elastic modelling quantity meet design requirement, removing bed die
Plate and side template, complete the construction of middle cross beam 15.
S702: four punching continuous jacks 3 are set at the top of middle cross beam 15: connect
The first punching continuous jack of the first steel strand wires, connection is had to have the second of the second steel strand wires to wear
Core type continuous jack, connection have the 3rd punching continuous jack of the 3rd steel strand wires, connection
There is the 4th punching continuous jack of the 4th steel strand wires.
S703: two distribution beam 6: the first distribution beam, the second distribution beam are all hung at crossbeam
The lower section of the level frame of support 5, the first steel strand wires connect through the first installing hole and the first distribution beam
Connecing, the 3rd steel strand wires connect through the 3rd installing hole and the first distribution beam；Second steel strand wires pass
Second installing hole and the second distribution beam connect, and the 4th steel strand wires are through the 4th installing hole and second point
Join beam to connect.
S704: promoted by the first punching continuous jack and the 3rd punching continuous jack
First distribution beam, is carried by the second punching continuous jack and the 4th punching continuous jack
Rising the second distribution beam, the first distribution beam and the second distribution beam drives overarm brace 5 to rise, and treats horizontal stroke
After the base angle of boom support 5 both sides departs from the 3rd steel plate 11 and the 4th steel plate 13, excise the 3rd steel
Plate 11 and the 4th steel plate 13.
S8: transfer by the first punching continuous jack and the 3rd punching continuous jack
One distribution beam, is transferred by the second punching continuous jack and the 4th punching continuous jack
Second distribution beam, the first distribution beam and the second distribution beam drive overarm brace 5 to transfer, by crossbeam
Support 5 is transferred and is removed to ground, shown in Figure 4.
During the actual application of the embodiment of the present invention, during construction entablature 2, water in formation
After building space, before in casting space, casting concrete forms entablature 2, can water
Applying prefabricating load in building space, overarm brace 5 is carried out precompressed, after precompressed completes, removal is pre-
Pressure load.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if
If these amendment and modification within the scope of the claims in the present invention and equivalent technologies thereof, then this
A little amendments and modification are also within protection scope of the present invention.
The prior art that the content not described in detail in specification is known to the skilled person.
Claims (6)
1. a construction method for bridge tower thwart beam, described bridge tower includes the first tower being oppositely arranged
Post (1) and the second king-post (4), the first king-post (1) relative with the second king-post (4) one
Side, the side that the second king-post (4) is relative with the first king-post (1) are inner side；Its feature exists
In, described construction method comprises the following steps:
Step one: in the inner side of the first king-post (1), along the side being perpendicular to the first king-post (1)
To burying the first built-in fitting (8) and the 3rd built-in fitting (12) underground, the first built-in fitting (8) is positioned at
The top of the 3rd built-in fitting (12)；In the inner side of the second king-post (4), along being perpendicular to second
The direction of king-post (4) is buried underground and the second built-in fitting (10) and the 4th built-in fitting (14)；Second
Built-in fitting (10) is oppositely arranged with the first built-in fitting (8), the 4th built-in fitting (14) and the
Three built-in fittings (12) are oppositely arranged；
First built-in fitting (8), the second built-in fitting (10), the 3rd built-in fitting (12) and the 4th
Built-in fitting (14) all includes pre-buried end and exposed junction, the first built-in fitting (8) and the 3rd pre-buried
The pre-buried end of part (12) all imbeds the inside of the first king-post (1), the first built-in fitting (8) and
The exposed junction of the 3rd built-in fitting (12) all exposes to the inner side of the first king-post (1)；Second is pre-
The pre-buried end of embedded part (10) and the 4th built-in fitting (14) all imbeds the interior of the second king-post (4)
Portion, the exposed junction of the second built-in fitting (10) and the 4th built-in fitting (14) all exposes to the second tower
The inner side of post (4)；
Exposed junction at the first built-in fitting (8) welds the first steel plate (7), at the second built-in fitting
(10) exposed junction welds the second steel plate (9), and the exposed junction at the 3rd built-in fitting (12) welds
Connecing the 3rd steel plate (11), the exposed junction at the 4th built-in fitting (14) welds the 4th steel plate (13)；
Step 2: the base angle of existing overarm brace (5) both sides is respectively erected in the first steel
Plate (7) and the top of the second steel plate (9)；
Step 3: end template is set, in level at the top of the level frame of overarm brace (5)
The both sides of frame are respectively provided with side template；End template, two pieces of side templates, first king-posts (1) and
Two king-posts (4) form casting space；In casting space, casting concrete forms entablature (2),
When pouring, the first installing hole and the second installing hole are reserved, at upper horizontal stroke in the side at entablature (2)
The opposite side of beam (2) reserves the 3rd installing hole and the 4th installing hole；Entablature (2) concrete
Solidification, until after concrete strength and elastic modelling quantity meet design requirement, removing end template and side
Template, completes the construction of entablature (2)；
Step 4: four punching continuous jacks (3) are set at the top of entablature (2):
Connecting has the first punching continuous jack of the first steel strand wires, connects and have the of the second steel strand wires
Two punching continuous jacks, connect have the 3rd steel strand wires the 3rd punching continuous jack,
Connect the 4th punching continuous jack having the 4th steel strand wires；
By two distribution beam (6): the first distribution beam, the second distribution beam are all hung at overarm brace
(5) lower section of level frame, by the first steel strand wires through the first installing hole and the first distribution beam
Connect, the 3rd steel strand wires are connected through the 3rd installing hole and the first distribution beam；By the second steel strand
Line connects through the second installing hole and the second distribution beam, by the 4th steel strand wires through the 4th installing hole
It is connected with the second distribution beam；
Step 5: carried by the first punching continuous jack and the 3rd punching continuous jack
Rise the first distribution beam, by the second punching continuous jack and the 4th punching continuous jack
Promote the second distribution beam；First distribution beam and the second distribution beam drive overarm brace (5) to rise,
After the base angle of overarm brace (5) both sides departs from the first steel plate (7) and the second steel plate (9),
Excise the first steel plate (7) and the second steel plate (9)；
Step 6: by under the first punching continuous jack and the 3rd punching continuous jack
Put the first distribution beam, by the second punching continuous jack and the 4th punching continuous jack
Transferring the second distribution beam, the first distribution beam and the second distribution beam drives overarm brace (5) to transfer,
The base angle of overarm brace (5) both sides is respectively erected in the 3rd steel plate (11) and the 4th steel plate
(13) top；
Step 7: come again step 3 to step 5, by the upper horizontal stroke in step 3 to step 5
Beam (2) is as middle cross beam (15)；The first steel plate (7) in step 5 is replaced with the 3rd
Steel plate (11), replaces with the 4th steel plate (13) by the second steel plate (9) in step 5；
Step 8: after middle cross beam (15) has been constructed, by transferring the first distribution beam and second
Overarm brace (5) is transferred and is removed to ground by distribution beam.
2. the construction method of bridge tower thwart beam as claimed in claim 1, it is characterised in that: step
In rapid three after forming casting space, in casting space, casting concrete forms entablature (2)
Before, further comprising the steps of: in casting space, to apply prefabricating load, to overarm brace (5)
Carry out precompressed, precompressed complete after removal prefabricating load.
3. the construction method of bridge tower thwart beam as claimed in claim 1, it is characterised in that: step
Rapid seven comprise the following steps:
End template is set at the top of overarm brace (5), is respectively provided with side in the both sides of level frame
Template；End template, two pieces of side templates, the first king-post (1) and the second king-post (4) are formed and water
Build space；In casting space, casting concrete forms middle cross beam (15), at middle horizontal stroke when pouring
The first installing hole and the second installing hole are reserved in the side of beam (15), another at middle cross beam (15)
The 3rd installing hole and the 4th installing hole are reserved in side；Middle cross beam (15) concrete setting, until
After concrete strength and elastic modelling quantity meet design requirement, remove end template and side template, complete
The construction of middle cross beam (15)；
Four punching continuous jacks (3) are set at the top of middle cross beam (15): connect and have
First punching continuous jack of the first steel strand wires, connection have the second punching of the second steel strand wires
Formula continuous jack, connection have the 3rd punching continuous jack of the 3rd steel strand wires, connection to have
4th punching continuous jack of the 4th steel strand wires；
By two distribution beam (6): the first distribution beam, the second distribution beam are all hung at overarm brace
(5) lower section of level frame, by the first steel strand wires through the first installing hole and the first distribution beam
Connect, the 3rd steel strand wires are connected through the 3rd installing hole and the first distribution beam；By the second steel strand
Line connects through the second installing hole and the second distribution beam, by the 4th steel strand wires through the 4th installing hole
It is connected with the second distribution beam；
First is promoted by the first punching continuous jack and the 3rd punching continuous jack
Distribution beam, promotes the by the second punching continuous jack and the 4th punching continuous jack
Two distribution beam, the first distribution beam and the second distribution beam drive overarm brace (5) to rise, and treat horizontal stroke
After the base angle of boom support (5) both sides departs from the 3rd steel plate (11) and the 4th steel plate (13),
Excise the 3rd steel plate (11) and the 4th steel plate (13).
4. the construction method of bridge tower thwart beam as claimed in claim 1, it is characterised in that step
Rapid eight comprise the following steps:
First is transferred by the first punching continuous jack and the 3rd punching continuous jack
Distribution beam, transfers by the second punching continuous jack and the 4th punching continuous jack
Two distribution beam, the first distribution beam and the second distribution beam drive overarm brace (5) to transfer, by horizontal stroke
Boom support (5) is transferred and is removed to ground.
5. the construction method of the bridge tower thwart beam as described in any one of Claims 1-4, it is special
Levy and be: the center of described first installing hole, the center of the second installing hole, the 3rd installing hole
The line of centres of center and the 4th installing hole is rectangular.
6. the construction method of the bridge tower thwart beam as described in any one of Claims 1-4, it is special
Levy and be: described first built-in fitting (8), the second built-in fitting (10), the 3rd built-in fitting (12)
It is the reinforcing bar arranged in array with the 4th built-in fitting (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292483.7A CN104109999B (en) | 2014-06-26 | 2014-06-26 | The construction method of bridge tower thwart beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410292483.7A CN104109999B (en) | 2014-06-26 | 2014-06-26 | The construction method of bridge tower thwart beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104109999A CN104109999A (en) | 2014-10-22 |
| CN104109999B true CN104109999B (en) | 2016-08-24 |
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| CN201410292483.7A Active CN104109999B (en) | 2014-06-26 | 2014-06-26 | The construction method of bridge tower thwart beam |
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