CN108316148A - A kind of construction method and support construction of suspension bridge shaped steel anchor system - Google Patents

A kind of construction method and support construction of suspension bridge shaped steel anchor system Download PDF

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Publication number
CN108316148A
CN108316148A CN201810223210.5A CN201810223210A CN108316148A CN 108316148 A CN108316148 A CN 108316148A CN 201810223210 A CN201810223210 A CN 201810223210A CN 108316148 A CN108316148 A CN 108316148A
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CN
China
Prior art keywords
layer
support unit
anchor
poppet
anchor pole
Prior art date
Application number
CN201810223210.5A
Other languages
Chinese (zh)
Inventor
杨恒
胡建华
刘玉兰
谢臣
刘武
赵煜成
张晋瑞
欧阳强
Original Assignee
湖南路桥建设集团有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 湖南路桥建设集团有限责任公司 filed Critical 湖南路桥建设集团有限责任公司
Priority to CN201810223210.5A priority Critical patent/CN108316148A/en
Publication of CN108316148A publication Critical patent/CN108316148A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/16Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables

Abstract

The invention discloses a kind of construction method and support construction of suspension bridge shaped steel anchor system, construction method, including:Be welded after-poppet on second group of built-in fitting of first group of built-in fitting of after-poppet and after-poppet;The lower end of anchor beam is positioned on first group of built-in fitting of the after-poppet, and the anchor beam is made to lean against the after-poppet;Middle stand base is mounted on middle holder built-in fitting;Fore-stock pedestal is mounted on fore-stock built-in fitting;Support unit in first layer is mounted in the middle stand base;First layer front support unit is mounted on the fore-stock pedestal;The rear end of first layer anchor pole is connect with the anchor beam and by the first layer rockbolt installation in the first layer, on front support unit;It is installed in the n-th 1 layers, on front support unit in n-th layer, front support unit;N-th layer anchor pole is installed on anchor beam and n-th layer back and front supporting unit.The present invention has the advantages that be easily installed positioning anchor pole.

Description

A kind of construction method and support construction of suspension bridge shaped steel anchor system
Technical field
The invention belongs to the shaped steel anchor system construction fields of main rope of suspension bridge strand, and in particular to a kind of suspension bridge shaped steel The construction method and support construction of anchor system.
Background technology
In Analysis of Suspension Bridges ' Anchorage construction, the support system of the shaped steel anchor system of many suspension bridges is to be spelled using smaller shaped steel The space truss being connected into, formed before anchor pole is installed it is whole, including before, during and after holder, the vertical branch of the anchor pole of preceding, middle holder Longitudinal each 2 row of strut bridge, bridge transverse direction N+1 row, N are anchor pole direction across bridge columns, between vertical supporting bar direction across bridge welding place anchor pole Spreader beam;Vertical supporting bar is all that onshore rolls tiltedly, and under no external cause action, the dead weight of vertical supporting bar can make its bending, to protect Hold the stabilization of holder, in, after-poppet bridge longitudinally make the horse form of statically determinate structure, before, during and after also have bridge longitudinally to join between holder System, holder is linked to be firm entirety before, during and after making;The method of holder installation has to dissipate to spell spells 2 kinds with piecemeal, and 2 kinds of methods have greatly Positioning, the welding job of amount take material, time-consuming, laborious, and numerous splicing positioning accuracy is difficult to guarantee precisely especially, and lifting operation amount is big, The time for occupying hanging device is long;It, must very with caution, between horse when the anchor pole lifting of anchoring system is in place after holder installation Gap it is not only deep but also narrow, when placing anchor pole, swing skyborne anchor pole and be easy to collide with the horse that stands in great numbers, scratch the protection of anchor pole Layer and coating, anchor pole quality is big, in the air because of wind or other reasons horizontal movement when momentum it is also big, be easy also non-direction across bridge Weld spreader beam(Spreader beam need to place that anchor pole is latter to be installed layer by layer from level to level)Horse hit deformation;Anchor pole is big section shaped steel, rigidity Greatly, 5 row's vertical supportings are difficult to be uniformly distributed to undertake its gravity, and vertical supporting bar supporting efficiency is low.
Invention content
The object of the present invention is to provide a kind of construction methods for the suspension bridge shaped steel anchor system being easily installed positioning anchor pole And support construction.
In order to achieve the above-mentioned object of the invention, technical solution provided by the invention is:
The construction method of suspension bridge shaped steel anchor system, including:
Dispose first group of built-in fitting of after-poppet, second group of built-in fitting of after-poppet, middle holder built-in fitting, fore-stock built-in fitting;
After-poppet is welded on second group of built-in fitting of first group of built-in fitting of after-poppet and after-poppet, to form installation anchor beam 4 Inclined-plane;
The lower end of anchor beam is positioned on first group of built-in fitting of the after-poppet, and the anchor beam is made to lean against the after-poppet;
Middle stand base is mounted on middle holder built-in fitting, and fore-stock pedestal is mounted on fore-stock built-in fitting;
Support unit in first layer is mounted in the middle stand base, station is installed to be formed in first layer anchor pole;
First layer front support unit is mounted on the fore-stock pedestal, to install station before forming first layer anchor pole;
The rear end of first layer anchor pole is connected to the anchor beam, and by the first layer rockbolt installation in the first layer anchor pole It is installed on station before station and the first layer anchor pole are installed;
Support unit in n-th layer is mounted in (n-1)th layer on support unit, station is installed to be formed in n-th layer anchor pole;
N-th layer front support unit is mounted on (n-1)th layer of front support unit, to install station before forming n-th layer anchor pole;
And the rear end of n-th layer anchor pole is connected to the anchor beam, and by the n-th layer rockbolt installation in the n-th layer anchor pole It is installed in station before middle installation station and the n-th layer anchor pole;
The n is the number of plies of anchor pole, is greater than the integer equal to 2.
The support construction of suspension bridge shaped steel anchor system, including:After-poppet, the after-poppet are used for location and installation anchor beam; Middle holder, the middle holder include middle stand base and the middle support unit in the middle stand base, the middle branch Support unit, which is used to form in anchor pole, to be installed station and supports, positions anchor pole;And fore-stock, the fore-stock include fore-stock base Seat and the front support unit on the fore-stock pedestal, the front support unit be used to form installation station before anchor pole and Bearing, positioning anchor pole.
Preferably, the middle support unit includes support unit, the first layer in support unit and n-th layer in first layer Middle support unit is mounted in the middle stand base, and support unit, which is mounted in described (n-1)th layer, in the n-th layer supports list In member, and n is the integer more than or equal to 2.
Preferably, the front support unit includes first layer front support unit and n-th layer front support unit, the first layer Front support unit is mounted on the fore-stock pedestal, and the n-th layer front support unit is mounted on (n-1)th layer of front support list In member, and n is the integer more than or equal to 2.
Preferably, the support construction further includes first group of built-in fitting of after-poppet, first group of built-in fitting packet of the after-poppet Include the first part for installing anchor beam and the second part for connecting after-poppet, the first part and the second part It is welded to one another integral;The first part bottom includes bearing plate, includes push plate on rear side of second part.
Preferably, the after-poppet includes tortuous crossbeam corresponding with the dimensional orientation of anchor beam.
Advantageous effect
Since middle holder and fore-stock are designed as successively installing by the support construction of the suspension bridge shaped steel anchor system of the present invention Modular structure, therefore anchor pole, middle support unit and front support unit can be successively installed step by step when installing anchor pole, Avoid the numerous disadvantages brought by whole in the prior art middle holder and fore-stock(For example, expense expects, is time-consuming, laborious, hanging Dress workload is big, is difficult to guarantee the positioning accuracy of anchor pole), it is seen then that the construction method of suspension bridge shaped steel anchor system of the invention and The support construction of suspension bridge shaped steel anchor system all has the advantages of being easily installed positioning anchor pole.
Below in conjunction with attached drawing, the present invention is described in detail.
Description of the drawings
Fig. 1 is the structural schematic diagram of the support construction of suspension bridge shaped steel anchor system of the present invention.
Fig. 2 be middle support unit in Fig. 1 and front support unit spliced at supporting surface drawing.
Fig. 3 be middle support unit in Fig. 1 and front support unit spliced at supporting surface front view.
Fig. 4 is the top view of the middle support unit and front support unit in Fig. 1.
Fig. 5 is the tortuous crossbeam partial enlarged view of the after-poppet in Fig. 1.
Fig. 6 is first group of built-in fitting enlarged drawing in Fig. 1.
Specific implementation mode
The construction method of suspension bridge shaped steel anchor system provided by the invention, including:
Dispose first group of built-in fitting 1001 of after-poppet, second group of built-in fitting 1002 of after-poppet, middle holder built-in fitting 2001, fore-stock Built-in fitting 3001;
After-poppet 1 is welded on second group of built-in fitting 1002 of first group of built-in fitting 1001 of after-poppet and after-poppet, to form peace Fill the inclined-plane of anchor beam 4;
The lower end of anchor beam 4 is positioned on first group of built-in fitting 1001 of the after-poppet, and make the anchor beam 4 lean against it is described after Holder 1;
Middle stand base 2002 is mounted on middle holder built-in fitting 2001, and fore-stock pedestal 3002 is pre- mounted on fore-stock On embedded part 3001;
Support unit in first layer 2003 is mounted in the middle stand base 2002, to form erector in first layer anchor pole Position;
First layer front support unit 3003 is mounted on the fore-stock pedestal 3002, to form erector before first layer anchor pole Position;
The rear end of first layer anchor pole 5 is connected to the anchor beam 4, and the first layer anchor pole 5 is mounted on the first layer anchor It is installed on station before station and the first layer anchor pole are installed in bar;
Support unit in n-th layer 2003 is mounted in (n-1)th layer on support unit 2003, is installed with being formed in n-th layer anchor pole Station;
N-th layer front support unit 3003 is mounted on (n-1)th layer of front support unit 3003, to install before forming n-th layer anchor pole Station;And the rear end of n-th layer anchor pole is connected to the anchor beam 4, and by the n-th layer rockbolt installation in the n-th layer anchor It is installed in station before station and the n-th layer anchor pole are installed in bar;
The n is the number of plies of anchor pole 5, is greater than the integer equal to 2.
In addition, the present invention also provides a kind of support construction of suspension bridge shaped steel anchor system, it is as shown in Figures 1 to 6, described Support construction includes:
After-poppet 1, the after-poppet 1 are used for location and installation anchor beam 4;
Middle holder 2, the middle holder 2 include middle stand base 2002 and the middle support in the middle stand base 2002 Unit 2003, the middle support unit 2003 are used to form in anchor pole 5 and install station and support, position anchor pole 5;And fore-stock 3, the fore-stock 3 include fore-stock pedestal 3002 and on the fore-stock pedestal 3002 front support unit 3003, The front support unit 3003 installs station and supports, positions anchor pole 5 before being used to form anchor pole 5.
Every anchor pole has 5 fulcrums in the prior art, and anchor pole rigidity is big, and the spacing of fulcrum is too small, thus the amount of deflection of anchor pole Too small, position of the fulcrum is difficult to ensure that precisely, fulcrum bearing capacity is inevitably uneven, and the supporting efficiency of holder is not high, and the present invention is only with 3 A fulcrum, such each fulcrum bearing capacity of elastic bearing is evenly;In the prior art be ensure holder stabilization, in, fore-stock Using truss form, also there is rod piece connection to increase stability between rear, preceding, middle holder, and anchor pole is connect by the present invention with holder It is integral, in, fore poppet overhead is spliced into single supporting surface by n-layer support unit and also can guarantee total complete stability;By Middle holder 2 and fore-stock 3 are designed as the mould that can successively install in the support construction of the suspension bridge shaped steel anchor system of the present invention The structure of block, therefore anchor pole 5, middle support unit 2003 and front support list can be successively installed step by step when installing anchor pole 5 Member 3003, anchor pole need not hang in installation site down as the prior art from integral support top, only need to be slightly higher than most The height of last layer support unit moves to installation site, it is seen then that avoid by whole in the prior art middle holder and Fore-stock and the numerous disadvantages brought(For example, expense expects, is time-consuming, laborious, lifting operation amount is big, is difficult to guarantee the positioning accurate of anchor pole Degree), it was demonstrated that the construction method and support construction of suspension bridge shaped steel anchor system of the invention all have be easily installed positioning anchor pole, Installation effectiveness is high, saves the advantages of fund fund.It can weld, can also bolt between support unit, if the duration is tight, bolt is more Soon.
In the support construction of the present invention, specifically, the middle support unit 2003 includes support unit in first layer 2003 and n-th layer in support unit 2003, support unit 2003 is mounted in the middle stand base 2002 in the first layer, Support unit 2003 is mounted in described (n-1)th layer on support unit 2003 in the n-th layer, and n is whole more than or equal to 2 Number.
In the support construction of the present invention, more specifically, the front support unit 3003 includes first layer front support unit 3003 and n-th layer front support unit 3003, the first layer front support unit 3003 is mounted on the fore-stock pedestal 3002, The n-th layer front support unit 3003 is mounted on (n-1)th layer of front support unit 3003, and n is whole more than or equal to 2 Number.
In the support construction of the present invention, further specifically, the support construction further includes that first group of after-poppet is pre-buried Part 1001, first group of built-in fitting 1001 of the after-poppet include first part 1003 for installing anchor beam 4 and for connecting after The second part 1004 of holder 1, the first part 1003 and the second part 1004 are welded to one another integrally;Described first 1003 bottom of part includes bearing plate 1006, and 1004 rear side of second part includes push plate 1007.The supporting surface of after-poppet The built-in fitting of bottom needs resistance to plucking, it is well known that resistance to plucking be built-in fitting resistance to compression, shearing resistance, resistance to plucking, it is antitorque in worst one Kind, the present invention by the built-in fitting of the supporting surface bottom of the base of anchor beam 4 and after-poppet be combined into one first group of form it is pre- After embedded part 1001, eliminate the pulling force to concrete, pulling force at first group of built-in fitting 1001 internal force;The present invention is also effectively sharp With the good characteristic of concrete anti-compression ability, 1003 bottom of first part is provided with bearing plate 1006, in second part 1004 Rear side is provided with push plate 1007, to bear the kick of after-poppet, anchor beam, the part gravity of anchor pole and anchor pole 5;After prop up First group of built-in fitting 1001 of frame has given up traditional built-in fitting way, uses the new technology of steel reinforced concrete form, up and down front and back big face Accumulate sky, ensure that concrete tightens together with steel, using first group of built-in fitting 1001 of special shape accomplished multi-purpose content, Solve the problems, such as that traditional built-in fitting cannot bear big load.
In the support construction of the present invention, further specifically, the after-poppet 1 includes the dimensional orientation phase with anchor beam 4 The tortuous crossbeam 1005 answered.The prior art is a flat surface, and when installing anchor beam, to make size, different cushion block temporarily, The adjustment excessive cycle for causing anchor beam 4, delays the duration, and not only labour's consumption is big, and installation accuracy is also difficult to guarantee, and according to this hair In the construction of the suspension bridge shaped steel anchor system of bright implementation, it is pre- only need to the lower end of anchor beam 4 to be positioned over to first group of the after-poppet On embedded part 1001, and the anchor beam 4 is made to lean against the after-poppet 1, slightly adjusted, after fixation.
The preferred embodiment of the present invention is described in detail above in association with attached drawing, still, the present invention is not limited to above-mentioned realities The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical scheme of the present invention Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally The thought of invention, it should also be regarded as the disclosure of the present invention.

Claims (6)

1. a kind of construction method of suspension bridge shaped steel anchor system, which is characterized in that the construction method includes:
Dispose first group of built-in fitting of after-poppet(1001), second group of built-in fitting of after-poppet(1002), middle holder built-in fitting(2001)、 Fore-stock built-in fitting(3001);
By after-poppet(1)It is welded in first group of built-in fitting of after-poppet(1001)With second group of built-in fitting of after-poppet(1002)On, with Form the inclined-plane of installation anchor beam 4;
By anchor beam(4)Lower end be positioned over first group of built-in fitting of the after-poppet(1001)On, and make the anchor beam(4)It leans against The after-poppet(1);
By middle stand base(2002)Mounted on middle holder built-in fitting(2001)On;
By fore-stock pedestal(3002)Mounted on fore-stock built-in fitting(3001)On;
By support unit in first layer(2003)Mounted on the middle stand base(2002)On, pacified with being formed in first layer anchor pole Fill station;
By first layer front support unit(3003)Mounted on the fore-stock pedestal(3002)On, to pacify before forming first layer anchor pole Fill station;
By first layer anchor pole(5)Rear end be connected to the anchor beam(4)And by the first layer anchor pole(5)Mounted on described first It is installed on station before installation station and the first layer anchor pole in layer anchor pole;
By support unit in n-th layer(2003)The support unit in (n-1)th layer(2003)On, to be formed in n-th layer anchor pole Station is installed;
By n-th layer front support unit(3003)Mounted on (n-1)th layer of front support unit(3003)On, before forming n-th layer anchor pole Station is installed;And the rear end of n-th layer anchor pole is connected to the anchor beam(4)And by the n-th layer rockbolt installation described n-th It is installed in station before installation station and the n-th layer anchor pole in layer anchor pole;
The n is anchor pole(5)The number of plies, be greater than the integer equal to 2.
2. a kind of support construction of suspension bridge shaped steel anchor system, it is characterised in that including:
After-poppet(1), the after-poppet(1)For location and installation anchor beam(4);
Middle holder(2), the middle holder(2)Including middle stand base(2002)With mounted on the middle stand base(2002)On Middle support unit(2003), the middle support unit(2003)It is used to form anchor pole(5)Middle installation station and support, positioning anchor Bar(5);And fore-stock(3), the fore-stock(3)Including fore-stock pedestal(3002)With on the fore-stock pedestal (3002)Front support unit(3003), the front support unit(3003)It is used to form anchor pole(5)Preceding installation station and support, Position anchor pole(5).
3. according to the support construction described in claim 2, which is characterized in that the middle support unit(2003)Including first layer Middle support unit(2003)With support unit in n-th layer(2003), support unit in the first layer(2003)Mounted on described Middle stand base(2002)On, support unit in the n-th layer(2003)The support unit in described (n-1)th layer(2003) On, and n is the integer more than or equal to 2.
4. according to the support construction described in claim 2, which is characterized in that the front support unit(3003)Including first layer Front support unit(3003)With n-th layer front support unit(3003), the first layer front support unit(3003)Mounted on described Fore-stock pedestal(3002)On, the n-th layer front support unit(3003)Mounted on (n-1)th layer of front support unit(3003) On, and n is the integer more than or equal to 2.
5. according to the support construction described in claim 2, which is characterized in that the support construction further includes first group of after-poppet Built-in fitting(1001), first group of built-in fitting of the after-poppet(1001)Including being used to install anchor beam(4)First part(1003) With for connecting after-poppet(1)Second part(1004), the first part(1003)With the second part(1004)That This is integrally welded;The first part(1003)Bottom includes bearing plate(1006), second part(1004)Rear side includes There is push plate(1007).
6. according to the support construction described in claim 2, which is characterized in that the after-poppet(1)Including with anchor beam(4)Sky Between orientation tortuous crossbeam accordingly(1005).
CN201810223210.5A 2018-03-19 2018-03-19 A kind of construction method and support construction of suspension bridge shaped steel anchor system CN108316148A (en)

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Application Number Priority Date Filing Date Title
CN201810223210.5A CN108316148A (en) 2018-03-19 2018-03-19 A kind of construction method and support construction of suspension bridge shaped steel anchor system

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Application Number Priority Date Filing Date Title
CN201810223210.5A CN108316148A (en) 2018-03-19 2018-03-19 A kind of construction method and support construction of suspension bridge shaped steel anchor system

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109468954A (en) * 2018-10-29 2019-03-15 中交二航局第四工程有限公司 A kind of form of construction work of anchorage anchor system
CN109505246A (en) * 2018-11-12 2019-03-22 中国十七冶集团有限公司 A kind of reinforcement means of suspension bridge anchor case support
CN110886218A (en) * 2019-12-02 2020-03-17 湖北省路桥集团有限公司 Main cable profile steel anchoring system of large-span suspension bridge and construction method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109468954A (en) * 2018-10-29 2019-03-15 中交二航局第四工程有限公司 A kind of form of construction work of anchorage anchor system
CN109505246A (en) * 2018-11-12 2019-03-22 中国十七冶集团有限公司 A kind of reinforcement means of suspension bridge anchor case support
CN110886218A (en) * 2019-12-02 2020-03-17 湖北省路桥集团有限公司 Main cable profile steel anchoring system of large-span suspension bridge and construction method

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