CN108755410A - A kind of self-crawling type bearing jack-up system and its construction method for bridge tower construction - Google Patents
A kind of self-crawling type bearing jack-up system and its construction method for bridge tower construction Download PDFInfo
- Publication number
- CN108755410A CN108755410A CN201810914520.1A CN201810914520A CN108755410A CN 108755410 A CN108755410 A CN 108755410A CN 201810914520 A CN201810914520 A CN 201810914520A CN 108755410 A CN108755410 A CN 108755410A
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- Prior art keywords
- angle mould
- heavy frame
- bridge tower
- jack
- self
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Abstract
The invention discloses a kind of self-crawling type bearing jack-up systems and its construction method for bridge tower construction, the system is mounted on each corner of bridge tower, including angle mould, upper heavy frame, lower heavy frame and jacking cylinder, the angle mould is installed on the corner of bridge tower by can be taken off the bolt of concrete, the upper heavy frame and lower heavy frame hang on the upper and lower part of angle mould respectively, the jacking cylinder is mounted between upper heavy frame and lower heavy frame, and heavy frame or the upward of lower heavy frame climb in the flexible realization that the jacking cylinder passes through itself.The present invention has the characteristics that single fulcrum bearing capacity is big, supporting-point quantity is few, single jacking is apart from big.
Description
Technical field
The invention belongs to technical field of building construction, are related to a kind of form frame system of superelevation bridge tower construction, and in particular to one
Self-crawling type bearing jack-up system and its construction method of the kind for bridge tower construction.
Background technology
Traditional bridge tower construction form frame system, based on creeping formwork and overmolded system, being mainly characterized by for this two kinds of systems will
Bridge tower construction mould bases fragment design, when mould bases is integrated, can carry out construction operation, when a standard segmental construction is completed
Afterwards, first form frame system is broken as several smaller segments, then fragment is promoted（It climbs）Operation, waits for all segments complete
Portion reach predetermined altitude and then it is secondary close up mould bases, carry out construction operation.
Traditional form frame system due to using split blade type design, jacking operation when, each small pieces respectively with cylinder jacking in place
And then it is secondary be stitched together, and jacking cylinder bearing capacity used is relatively low, and top lift is limited, thus oil cylinder is large number of, every mould
The corresponding oil cylinder quantity of frame is 2-4, the entire oil cylinder quantity for constructing form frame system reach more than ten it is even more.Whole system
Although having the advantages that compact-sized, splicing is flexible, because it has the characteristics that oil cylinder is small, quantity is more, thus there are stress
Bearing support quantity is more, the defect more than built-in fitting, causes burying work beforehand amount big, and process of climbing is cumbersome, and holding time is longer, puts into people
Power is more, and entire form frame system jacking operation is time-consuming and laborious.
Invention content
The purpose of the present invention is to provide a kind of self-crawling types for bridge tower construction to support jack-up system and its construction method,
It has the characteristics that single fulcrum bearing capacity is big, supporting-point quantity is few, single jacking is apart from big.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of self-crawling type for bridge tower construction supports jack-up system, is mounted on each corner of bridge tower, the bearing jacking
System includes angle mould, upper heavy frame, lower heavy frame and jacking cylinder, and the angle mould is installed on by can be taken off the bolt of concrete
The corner of bridge tower, the upper heavy frame and lower heavy frame hang on the upper and lower part of angle mould, the jacking cylinder peace respectively
Between upper heavy frame and lower heavy frame, the jacking cylinder passes through heavy frame in the flexible realization of itself or lower heavy frame
It climbs upwards.
According to the above technical scheme, the bearing jack-up system further includes anti-side mechanism, and the anti-side mechanism includes phase configuration
Sliding rail and sliding block, the sliding rail and sliding one in the block is mounted vertically on angle mould, another is mounted vertically in heavy frame
On lower heavy frame.
According to the above technical scheme, multiple pawl boots, the upper heavy frame and lower heavy frame are equipped on the angle mould from top to bottom
On be provided with the extension pawl being mutually engaged with the pawl boots.
According to the above technical scheme, the extension pawl is rotatably mounted on by axis pin on upper heavy frame and lower heavy frame, with axis pin
Centered on will hang pawl and be divided into close to angle mould portion and far from two, angle mould portion part, the weight in separate the angle mould portion is more than close angle
The weight in mould portion.
According to the above technical scheme, the cylinder body of the jacking cylinder is hingedly mounted on lower heavy frame, the end of piston rod
It is hinged with upper heavy frame.
According to the above technical scheme, the angle mould is assembled by the first bearing member and the second bearing member.
According to the above technical scheme, connected by shrinking connecting-rod between the bearing jack-up system of the two neighboring corner of bridge tower
It is connected in entirety.
A kind of construction method of self-crawling type bearing jack-up system for bridge tower construction, includes the following steps：
S1, each corner that a set of angle mould is mounted on to bridge tower bottom load segment by can be taken off the bolt of concrete, will
Template is overlapped between adjacent angle mould, and all angle moulds are located at same absolute altitude, assembling reinforcement after-pouring bridge tower bottom load segment
Concrete and complete to conserve；
S2, the upper and lower part that upper heavy frame and lower heavy frame are hung on to angle mould respectively, jacking cylinder are mounted on upper load
Between frame and lower heavy frame；
S3, each corner that other set angle mould is mounted on to a load segment on bridge tower by can be taken off the bolt of concrete
Place, template is overlapped between adjacent angle mould, is located at all angle moulds at a upper load segment and is located at same absolute altitude, binds
It a load segment concrete and is conserved on reinforcing bar after-pouring；
S4, after the completion of waiting for the maintenance of load segment, jacking cylinder stretches out, and upper heavy frame is jacked and is hung on upwards is located at
The lower part of the angle mould of a upper load segment, then jacking cylinder contraction, lower heavy frame is jacked upwards and is hung on positioned at bridge
The top of the angle mould of tower bottom load segment repeats to jack once, finally upper heavy frame is hung on positioned at a upper load section
The top of the angle mould of section, lower heavy frame are hung on the lower part of the angle mould positioned at a upper load segment；
S5, dismounting are installed on the angle mould and template of bottom load segment, and the set angle mould becomes other set angle mould in S3 at this time, and two
It covers angle mould alternate cycles to use, repeats S3, S4, until completing bridge tower construction.
According to the above technical scheme, the angle mould uses separate structure comprising upper angle mould and lower angle mould.
The beneficial effect comprise that：The present invention be mounted on bridge tower all corners, using the corner of bridge tower as
Support Position can avoid ornamental strip and presstressed reinforcing steel（Ornamental strip and presstressed reinforcing steel are because of the variation of king-post surface angle and mutual injustice
Row causes its variation irregular, is unfavorable for installing stress）, when all bearing jack-up systems are located at same absolute altitude with upper frame system
It unites to connect and forms entirety, jacked simultaneously along king-post linea angulata, can climb along linea angulata with king-post changes of section and realize interior receipts, compared to biography
System creeping formwork or overmolded, number of support points of the present invention are few, it is possible to reduce built-in fitting quantity reduces probability of equipment failure, saves material
And the duration, and single fulcrum stroke is big, high capacity, can reduce total jacking and creep number, reduce the non-working condition of equipment
Holding time ratio improves speed of application, and high-bearing capacity, which also helps, expands vertical construction operation steel construction plane, ensures multiplexing
Sequence concurrent construction improves effect.The present invention is suitable for the construction equipment or facility of bridge tower construction, especially monoblock type and carries hydraulic pressure
The bridge tower construction equipment or facility of self-climbing mechanism.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the floor plan of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of angle mould in the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of lower heavy frame in the embodiment of the present invention；
Fig. 5 a are the occlusion schematic diagrames hung pawl in the embodiment of the present invention and quit；
Fig. 5 b are the structural schematic diagrams that pawl is hung in the embodiment of the present invention；
Fig. 5 c are the automatic turning block diagrams that pawl is hung in the embodiment of the present invention；
Fig. 6 is the structural schematic diagram for the bolt that can be taken off concrete in the embodiment of the present invention；
Fig. 7 is standard of embodiment of the present invention segment lifting diagram.
In figure：1- bridge towers, 2- support jack-up system, 3- angle moulds, the first bearing members of 3.1-, the second bearing members of 3.2-, 3.3-
Pawl boots, the upper heavy frames of 4-, 4.1- hang pawl, heavy frame under 5-, 6- jacking cylinders, and 7- can be taken off the bolt of concrete, 8- sliding rails, 9-
Sliding block.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
A kind of self-crawling type for bridge tower construction supports jack-up system, as shown in Figure 1, the bearing jack-up system 2 is mounted on
Each corner of bridge tower 1, as shown in Fig. 2, the bearing jack-up system includes angle mould 3, upper heavy frame 4, lower heavy frame 5 and jacking
Oil cylinder 6, angle mould 1 are installed on the corner of bridge tower, upper heavy frame 4 and lower heavy frame 5 difference by can be taken off the bolt of concrete
It is hung on the upper and lower part of angle mould 1, jacking cylinder 6 is mounted between upper heavy frame 4 and lower heavy frame 5, and jacking cylinder passes through
Heavy frame or the upward of lower heavy frame climb in the flexible realization of itself.As shown in fig. 6, the bolt 7 that can be taken off concrete uses
" full taking-out type " can have enough to meet the need bolt, and angle mould can be removed to recycling.Can be taken off concrete bolt be divided into pre embedded bolt with
Bearing bolt two parts bear shearing and pulling force for angle mould to be fixed on wall.
In a preferred embodiment of the invention, as shown in Figure 3, Figure 4, bearing jack-up system further includes anti-side mechanism, anti-side
Mechanism includes the sliding rail 8 and sliding block 9 of phase configuration, and sliding rail and sliding one in the block are mounted vertically on angle mould, another vertical peace
On upper heavy frame and lower supporting frame.It moves, operates steadily along respective sliding rail when upper lower supporting frame climbs, and anti-side machine
Structure can also provide the Horizontal limiting of lower supporting frame.In this example, sliding rail 8 is mounted on angle mould, and sliding block 9 is mounted on upper heavy frame
On lower heavy frame.By the way that anti-side mechanism is arranged between upper and lower heavy frame and angle mould, it is ensured that during jacking up and down
Heavy frame is moved along trapped orbit, while being also avoided that bearing support up and down and upper part carrying topple.
In a preferred embodiment of the invention, as shown in Fig. 3-Fig. 5 a, multiple pawl boots 3.3 are equipped on angle mould from top to bottom,
It is provided with the extension pawl 4.1 being mutually engaged with pawl boots on upper heavy frame and lower heavy frame.Preferably, as shown in Fig. 5 a- Fig. 5 b, it is logical to hang pawl
It crosses axis pin to be rotatably mounted on heavy frame and lower heavy frame, pawl will be hung centered on axis pin and is divided into close to angle mould portion and far from angle
Two, mould portion part, the weight far from angle mould portion are more than the weight close to angle mould portion, not by external force when, hang pawl to right rotation to water
Level state, and it is raised block and the limit of lower jacking block.As shown in Figure 5 c, when jacking state, lower heavy frame is passed through by hanging pawl load
Bearing support climbs on jacking cylinder pushing tow, and upper heavy frame hangs pawl and disengagement of quitting, and hangs pawl automatic turning to horizontality, after being stretched flat
It is engaged again with the pawl boots on top.By the way that the design of centre of gravity of pawl will be hung on the right side of rotation center, it is ensured that do not having during jacking
Horizontality can be automatically rotated to by hanging pawl in the case of having external force, be not necessarily to counterweight.
In a preferred embodiment of the invention, as shown in Fig. 2, the cylinder body of jacking cylinder is hingedly mounted on lower heavy frame,
The end of its piston rod is hinged with upper heavy frame, to meet the working condition requirement of the certain gradient of bridge tower, piston rod is avoided to bear water
Straight snips power.Specifically, piston rod head uses spherical hinge lug ring, cylinder barrel to use head oscillation structure.
Angle mould also serves as concrete blinding use, and frame load is transferred to the key member of wall, the present invention's
In preferred embodiment, as shown in figure 3, angle mould is assembled by the first bearing member 3.1 and the second bearing member 3.2, two bearing members
In king-post corner, the junctions of two bearing members is set as circular arc chamfering according to wall shape for symmetrical splicing setting, on facade
It is provided with pre-embedded bolt hole position, sliding rail, quits.Preferably, the first bearing member 3.1 is as 3.2 structure of the second bearing member.
In a preferred embodiment of the invention, by stretching between the bearing jack-up system of the two neighboring corner of bridge tower
Contracting connecting rod is connected as entirety.
The construction method of a kind of self-crawling type bearing jack-up system for bridge tower construction, as shown in fig. 7, comprises following step
Suddenly：
S1, each corner that a set of angle mould is mounted on to bridge tower bottom load segment by can be taken off the bolt of concrete, will
Template is overlapped between adjacent angle mould, and all angle moulds are located at same absolute altitude, assembling reinforcement after-pouring bridge tower bottom load segment
Concrete and complete to conserve；
S2, the upper and lower part that upper heavy frame and lower heavy frame are hung on to angle mould respectively, jacking cylinder are mounted on upper load
Between frame and lower heavy frame；
S3, each corner that other set angle mould is mounted on to a load segment on bridge tower by can be taken off the bolt of concrete
Place, template is overlapped between adjacent angle mould, is located at all angle moulds at a upper load segment and is located at same absolute altitude, binds
It a load segment concrete and is conserved on reinforcing bar after-pouring；
S4, after the completion of waiting for the maintenance of load segment, jacking cylinder stretches out, and upper heavy frame is jacked and is hung on upwards is located at
The lower part of the angle mould of a upper load segment, then jacking cylinder contraction, lower heavy frame is jacked upwards and is hung on positioned at bridge
The top of the angle mould of tower bottom load segment repeats to jack once, finally upper heavy frame is hung on positioned at a upper load section
The top of the angle mould of section, lower heavy frame are hung on the lower part of the angle mould positioned at a upper load segment；
S5, dismounting are installed on the angle mould and template of bottom load segment, and the set angle mould becomes other set angle mould in S3 at this time, and two
It covers angle mould alternate cycles to use, repeats S3, S4, until completing bridge tower construction.
In a preferred embodiment of the invention, it is better operation in a limited space, and reduces installation difficulty, angle mould can
Using separate structure comprising the upper and lower part of upper angle mould and lower angle mould, upper angle mould and lower angle mould is equipped with extension pawl.
When Construction State：Upper lower supporting frame is connect by hanging pawl with bearing member pawl boots（It hangs pawl and pawl case is fixed on by axis pin
It is interior, it can rotate in a certain range）, vertical load and moment of flexure are passed into angle mould, and wall is transferred to by angle mould；Angle mould
Bear lower supporting frame simultaneously and transmit the vertical force and moment of flexure of coming, vertical force is resisted especially by bolt shearing resistance, by bolt and
Angle mould squeezes the horizontal reacting force resist torque generated with wall.
When concrete application, if king-post standard segment is 4.5m, then angle mould height is designed as 2.25m, a segment 4.5m
Jacking process is completed at twice for construction（2 sets of angle moulds up and down need to be set on a standard segment）.The maximum jacking of jacking cylinder
Power is 100T, jacking effective travel is 3.7m, the whole speed that promoted is 10mm/s.As a result of the two-way liquid of large-tonnage long stroke
Compressing cylinder, jacking process are steadily quick.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations should all belong to the protection domain of appended claims of the present invention.
Claims (9)
1. a kind of self-crawling type for bridge tower construction supports jack-up system, which is characterized in that it is mounted on each corner of bridge tower,
The bearing jack-up system includes angle mould, upper heavy frame, lower heavy frame and jacking cylinder, and the angle mould is by can be taken off concrete
Bolt be installed on the corner of bridge tower, the upper heavy frame and lower heavy frame hang on the upper and lower part of angle mould, institute respectively
It states jacking cylinder to be mounted between upper heavy frame and lower heavy frame, heavy frame in the flexible realization that the jacking cylinder passes through itself
Or the upward of lower heavy frame climbs.
2. the self-crawling type according to claim 1 for bridge tower construction supports jack-up system, which is characterized in that the bearing
Jack-up system further includes anti-side mechanism, and the anti-side mechanism includes the sliding rail and sliding block of phase configuration, and the sliding rail and cunning are in the block
One is mounted vertically on angle mould, another is mounted vertically on heavy frame and lower heavy frame.
3. the self-crawling type according to claim 1 for bridge tower construction supports jack-up system, which is characterized in that the angle mould
On be equipped with multiple pawl boots from top to bottom, be provided with the extension pawl being mutually engaged with the pawl boots on the upper heavy frame and lower heavy frame.
4. the self-crawling type according to claim 3 for bridge tower construction supports jack-up system, which is characterized in that the extension pawl
It is rotatably mounted on upper heavy frame and lower heavy frame by axis pin, pawl will be hung centered on axis pin and is divided into close to angle mould portion and separate
Two, angle mould portion part, the weight in the separate angle mould portion are more than the weight close to angle mould portion.
5. the self-crawling type according to claim 1 for bridge tower construction supports jack-up system, which is characterized in that the jacking
The cylinder body of oil cylinder is hingedly mounted on lower heavy frame, and the end of piston rod is hinged with upper heavy frame.
6. the self-crawling type according to claim 1 for bridge tower construction supports jack-up system, which is characterized in that the angle mould
It is assembled by the first bearing member and the second bearing member.
7. the self-crawling type according to claim 1 for bridge tower construction supports jack-up system, which is characterized in that be mounted on bridge
Entirety is connected as by shrinking connecting-rod between the bearing jack-up system of the two neighboring corner of tower.
8. the construction method described in a kind of any one of claim 1-7 for the self-crawling type bearing jack-up system of bridge tower construction,
It is characterized by comprising the following steps：
S1, each corner that a set of angle mould is mounted on to bridge tower bottom load segment by can be taken off the bolt of concrete, will
Template is overlapped between adjacent angle mould, and all angle moulds are located at same absolute altitude, assembling reinforcement after-pouring bridge tower bottom load segment
Concrete and complete to conserve；
S2, the upper and lower part that upper heavy frame and lower heavy frame are hung on to angle mould respectively, jacking cylinder are mounted on upper load
Between frame and lower heavy frame；
S3, each corner that other set angle mould is mounted on to a load segment on bridge tower by can be taken off the bolt of concrete
Place, template is overlapped between adjacent angle mould, is located at all angle moulds at a upper load segment and is located at same absolute altitude, binds
It a load segment concrete and is conserved on reinforcing bar after-pouring；
S4, after the completion of waiting for the maintenance of load segment, jacking cylinder stretches out, and upper heavy frame is jacked and is hung on upwards is located at
The lower part of the angle mould of a upper load segment, then jacking cylinder contraction, lower heavy frame is jacked upwards and is hung on positioned at bridge
The top of the angle mould of tower bottom load segment repeats to jack once, finally upper heavy frame is hung on positioned at a upper load section
The top of the angle mould of section, lower heavy frame are hung on the lower part of the angle mould positioned at a upper load segment；
S5, dismounting are installed on the angle mould and template of bottom load segment, and the set angle mould becomes other set angle mould in S3 at this time, and two
It covers angle mould alternate cycles to use, repeats S3, S4, until completing bridge tower construction.
9. the construction method of the self-crawling type bearing jack-up system according to claim 8 for bridge tower construction, feature exist
In the angle mould uses separate structure comprising upper angle mould and lower angle mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810914520.1A CN108755410B (en) | 2018-08-13 | 2018-08-13 | Self-climbing type supporting jacking system for bridge tower construction and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810914520.1A CN108755410B (en) | 2018-08-13 | 2018-08-13 | Self-climbing type supporting jacking system for bridge tower construction and construction method thereof |
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| CN108755410A true CN108755410A (en) | 2018-11-06 |
| CN108755410B CN108755410B (en) | 2023-10-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109763431A (en) * | 2019-03-05 | 2019-05-17 | 湖北旺科模板有限公司 | A kind of bridge tower hydraulic climbing formwork is without pulling rod formwork construction method |
| CN111705662A (en) * | 2020-05-22 | 2020-09-25 | 中建三局集团有限公司 | Deformable frame suitable for inclined structure construction |
| CN111926712A (en) * | 2020-08-12 | 2020-11-13 | 中交武汉港湾工程设计研究院有限公司 | Intelligent construction method for main tower with large inclination angle |
| CN112160243A (en) * | 2020-09-04 | 2021-01-01 | 中交路桥华南工程有限公司 | Steel tower lifting installation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112160243B (en) * | 2020-09-04 | 2022-02-11 | 中交路桥华南工程有限公司 | Steel tower lifting installation method |
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