CN109629449A - A kind of steel case arch bridge arch springing toughened internal stress installation locating support and alignment method - Google Patents

A kind of steel case arch bridge arch springing toughened internal stress installation locating support and alignment method Download PDF

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Publication number
CN109629449A
CN109629449A CN201910087069.5A CN201910087069A CN109629449A CN 109629449 A CN109629449 A CN 109629449A CN 201910087069 A CN201910087069 A CN 201910087069A CN 109629449 A CN109629449 A CN 109629449A
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CN
China
Prior art keywords
internal stress
supporting
toughened internal
locating support
truss
Prior art date
Application number
CN201910087069.5A
Other languages
Chinese (zh)
Inventor
刘灿
代皓
涂满明
毛伟琦
李艳哲
刘翠云
韩井东
马涛
谢守杰
方小林
王跃年
管容
何奈
李少
李少一
岳万友
李娜
Original Assignee
中铁大桥局集团有限公司
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 中铁大桥局集团有限公司 filed Critical 中铁大桥局集团有限公司
Priority to CN201910087069.5A priority Critical patent/CN109629449A/en
Publication of CN109629449A publication Critical patent/CN109629449A/en

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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D4/00Arch-type bridges

Abstract

The invention discloses a kind of steel case arch bridge arch springing toughened internal stress installation locating support and alignment method, the installation for being used for toughened internal stress and arch springing concrete is aligned;The wall surface that arch springing concrete is used to align installation is interface, and the side wall below interface is supporting surface, and the two side walls of direction across bridge are confined planes;The locating support includes sub-truss group and two lateral Displacement truss, and sub-truss group includes multiple sub-trusses, and sub-truss has supporting section and construction section, and supporting section is equipped with the slideway for carrying toughened internal stress;Locating support has installation condition, and when in mounted state, multiple sub-trusses are along direction across bridge arranged for interval, and construction section is fixed on supporting surface;Two lateral Displacement truss bottom ends are individually fixed in two confined planes, and top and interface, supporting section are enclosed the space for toughened internal stress sliding.The positioning rack structure is simple, is directly installed on arch springing concrete when in use, and installation and dismounting process are simple.

Description

A kind of steel case arch bridge arch springing toughened internal stress installation locating support and alignment method

Technical field

The present invention relates to steel case arch bridges construction fields, and in particular to a kind of steel case arch bridge arch springing toughened internal stress installation Locating support and alignment method.

Background technique

The mounting bracket of traditional steel case arch bridge arch springing steel concrete adapter section is console, i.e., mounting bracket passes through big Steel pipe (or lattice column) is supported on cushion cap or ground, and this mode is greater than arch springing height the Arch Bridge Construction process of 30m Cumbersome, the node (mainly connection system, built-in fitting and sustaining wall etc.) of the rod piece for needing to lift and welding is more, in steel concrete adapter section After being installed, since part superposition, large steel pipe (or lattice column) need tower crane auxiliary to adapter section when removing in the plane with bracket It helps and tiltedly hangs, lifting operating condition is dangerous.

When large-scale lifting appliance (crane barge or cable crane) being taken to carry out the installation of arch springing steel box section, when arch springing steel case and pier shaft High to the positioning accuracy request of big segment steel case when anchor pole quantity is more, site operation is difficult.

Conventional landing locating support mode is in addition to assembling and disassembling is complicated, installation aligning accuracy is difficult to ensure, material utilization amount Big and installation period at least needs 1.5 months.

Summary of the invention

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of combinations of steel case arch bridge arch springing steel reinforced concrete Section installation locating support, the positioning rack structure is simple to be directly installed on arch springing concrete when in use, installation and dismounting Process is simple.

To achieve the above objectives, the technical solution adopted by the present invention is that: a kind of installation of steel case arch bridge arch springing toughened internal stress Locating support, the installation for being used for toughened internal stress and arch springing concrete align;Arch springing concrete is used to align the wall surface of installation For interface, the side wall below interface is supporting surface, and the two side walls positioned at direction across bridge are confined planes;

Comprising:

Sub-truss group comprising multiple sub-trusses, sub-truss have supporting section and for being fixed on supporting surface Construction section, supporting section are equipped with the slideway for carrying toughened internal stress;

Two lateral Displacement truss;

Locating support have installation condition, when in mounted state, multiple sub-trusses along direction across bridge arranged for interval, and Construction section is fixed on supporting surface;Two lateral Displacement truss bottom ends are individually fixed in two confined planes, top and interface, branch Support section is enclosed the space for toughened internal stress sliding.

Further, locating support further includes thrustor, and when in mounted state, thrustor is set to supporting section On, and for along the upward pushing tow toughened internal stress in direction for being parallel to interface.

Further, thrustor uses jack.

Further, slideway includes multiple slides, length direction arranged for interval of the slide along supporting section.

Further, sub-truss be configured with connecting rod and anchor block, when in mounted state, connecting rod one end with it is corresponding Construction section be connected, other end self-supporting face passes through and arch springing concrete and is anchored on arch springing concrete by anchor block.

Further, connecting rod is anchored on the arch springing concrete side wall opposite with supporting surface by anchor block.

Further, locating support further include it is multiple climb cone, when in mounted state, construction section is fixed on by climbing cone On supporting surface.

The present invention also provides a kind of steel case arch bridge arch springing toughened internal stress alignment methods comprising following steps:

Locating support as claimed in claim 1 is provided;

Construction section is fixed on supporting surface by multiple sub-trusses along direction across bridge arranged for interval, two lateral Displacement truss bottoms End is individually fixed in two confined planes;

Toughened internal stress is lifted to being carried on slideway using hoist cable;

The connection for unlocking hoist cable and toughened internal stress slides onto toughened internal stress along slideway and aligns with arch springing concrete.

Further, in the company that toughened internal stress is lifted to after being carried on slideway, unlocked hoist cable and toughened internal stress Before connecing, alignment method further includes the steps that the contraposition setting angle for adjusting toughened internal stress.

Further, the step of adjusting the contraposition setting angle of toughened internal stress specifically comprises the following steps:

Thrustor and steel plate pad are provided, thrustor is set on supporting section;

By thrustor along the upward pushing tow toughened internal stress in direction for being parallel to interface, until pair of toughened internal stress Position setting angle reaches design angle;

Steel plate pad pad is set between toughened internal stress and slideway.

Compared with the prior art, the advantages of the present invention are as follows:

(1) relative to console, positioning rack structure provided by the invention is simple, is directly installed on when in use On arch springing concrete, installation and dismounting process are simple.

(2) when removing, assist removal directly can be carried out by jack or hoist engine, safety greatly improves.

Detailed description of the invention

Fig. 1 is arch springing concrete structure schematic diagram;

Fig. 2 is that (toughened internal stress is not right for layout drawing when locating support provided in an embodiment of the present invention is in installation condition Position);

Fig. 3 is D-D direction schematic diagram in Fig. 2;

Fig. 4 is E-E direction schematic diagram in Fig. 2;

Fig. 5 is the schematic diagram after thrustor provided in an embodiment of the present invention installation;

Fig. 6 is that (toughened internal stress is right for layout drawing when locating support provided in an embodiment of the present invention is in installation condition Position).

In figure: A, interface;B, supporting surface;C, confined planes;1, sub-truss;10, supporting section;11, construction section;12, sliding Seat;13, cone is climbed;14, connecting rod;15, anchor block;2, lateral Displacement truss;3, thrustor;4, toughened internal stress;5, arch springing is mixed Solidifying soil;50, anchor pole;6, hoist cable.

Specific embodiment

Invention is further described in detail with reference to the accompanying drawings and embodiments.

It is shown in Figure 1, the wall surface that arch springing concrete 5 is used to align installation is defined as interface A, is located at interface A The side wall of lower section is defined as supporting surface B, is defined as confined planes C positioned at the two side walls of direction across bridge, 50 one end of anchor pole is located at arch springing In concrete 5, the other end is pierced by interface A, and anchor pole 50 is usually substantially vertical with interface A.

Shown in Figure 2, the embodiment of the invention provides a kind of steel case arch bridge arch springing toughened internal stress to install locating support, It is used to the anchor pole 50 on toughened internal stress 4 and arch springing concrete 5 carrying out installation contraposition;Referring to fig. 2 to shown in Fig. 4, this is fixed Position bracket includes sub-truss group and two lateral Displacement truss 2;Wherein, sub-truss group includes multiple sub-trusses 1, support Truss 1 has supporting section 10 and construction section 11, and supporting section 10 is equipped with the slideway for carrying toughened internal stress 4, when to steel reinforced concrete When adapter section 4 is aligned, toughened internal stress 4 is using the extending direction of anchor pole 50 as glide direction, towards anchor pole 50 on slideway Sliding;

Shown in Figure 2, locating support has installation condition, and when in mounted state, multiple sub-trusses 1 are along cross-bridges It is fixed on supporting surface B to the construction section 11 of arranged for interval, and each sub-truss 1;Along 50 top extending direction of anchor pole, branch Support section 10 protrudes from interface A, and 10 length extending direction of supporting section is parallel with anchor pole 50;Two 2 bottoms of lateral Displacement truss End is individually fixed in two confined planes C, and top protrudes from interface A, and is enclosed and is used for interface A, supporting section 10 The space that toughened internal stress 4 slides, lateral Displacement truss 2 can prevent toughened internal stress 4 along cross-bridges with blocking toughened internal stress 4 To generation lateral deviation.

Relative to console, positioning rack structure provided in this embodiment is simple, is directly installed on when in use On arch springing concrete, the console that setting height is 60m is not needed, installation and dismounting process are simple, and installation period is significantly Shortening, material utilization amount also greatly reduces, it is aligned in installation process in toughened internal stress 4, in place by slideway sliding, positioning accuracy Available guarantee.

When removing, assist removal directly can be carried out by jack or hoist engine, safety greatly improves.

Referring to fig. 2 and shown in 5, locating support further includes thrustor 3, when in mounted state, 3 one end of thrustor On supporting section 10, another section is power output end, and power output end supports toughened internal stress 4, the power of thrustor 3 Output end using be located at vertical bridge to planar and be parallel to the linear extension direction of interface A as pushing tow direction, upward pushing tow Toughened internal stress 4.In the present embodiment, thrustor 3 uses jack.

Shown in Figure 2, slideway includes multiple slides 12, length direction arranged for interval of the slide 12 along supporting section 10.Ginseng As shown in Figure 5, in the present embodiment, slideway includes two slides 12, and there are two thrustors 3 for arrangement between two slides 12.

Shown in referring to figs. 2 and 3, sub-truss 1 is configured with connecting rod 14 and anchor block 15, when in mounted state, even 14 one end of extension bar is connected with corresponding construction section 11, and other end self-supporting face B passes through arch springing concrete 5 and anchored by anchor block 15 In on arch springing concrete 5, in the present embodiment, connecting rod 14 uses finish rolling deformed bar.

For the load transmission that is preferably subject to supporting section 10 to arch springing concrete 5, connecting rod 14 passes through 15 anchor of anchor block It is fixed on the side wall opposite with supporting surface B of arch springing concrete 5.

It is shown in Figure 2, locating support further include it is multiple climb cone 13, when in mounted state, construction section 11 is by climbing Cone 13 is fixed on supporting surface B.Lateral Displacement truss 2 can also be fixed on confined planes C by climbing cone 13.

Referring to fig. 2 and shown in 6, the embodiment of the invention also provides a kind of steel case arch bridge arch springing toughened internal stress contraposition sides Method includes the following steps:

S1: above-mentioned locating support is provided;

S2: construction section 11 is fixed on supporting surface B by multiple sub-trusses 1 along direction across bridge arranged for interval, two lateral Displacements 2 bottom end of truss is individually fixed in two confined planes C;

S3: toughened internal stress 4 is lifted to being carried on slideway using hoist cable 6;

S4: unlocking the connection of hoist cable 6 Yu toughened internal stress 4, slides onto toughened internal stress 4 and arch springing concrete along slideway 5 contrapositions.

When installing locating support, ensures that the contraposition setting angle of toughened internal stress 4 is consistent with design angle as far as possible, make Toughened internal stress 4 can directly slide in place, if contraposition setting angle is inconsistent with design angle, need to adjust steel reinforced concrete knot Close the contraposition setting angle of section 4, therefore, by the lifting of toughened internal stress 4 to after being carried on slideway, unlock hoist cable 6 and steel reinforced concrete Before the connection of adapter section 4, it can be adjusted in accordance with the following steps:

A1: providing thrustor 3 and steel plate pad, and thrustor 3 is set on supporting section 10;

A2: by thrustor 3 along the upward pushing tow toughened internal stress 4 in pushing tow direction, until the contraposition of toughened internal stress 4 is pacified Dress angle reaches design angle;

A3: steel plate pad pad is set between toughened internal stress 4 and slideway.

It after toughened internal stress 4 aligns, is installed, is waited after being installed according to existing plan, releasing is climbed cone 13 and connected The constraint of extension bar 14, with jack or hoist engine assist removal.The locating support is arranged on arch springing concrete 5, does not need to set The console that height is 60m is set, the positioning rack structure is simple, and installation and dismounting process are simple, and about half of installation period The moon can be completed, and the set-up time greatly shortens, and material utilization amount also greatly reduces, during the installation process, in place by slideway sliding, The available guarantee of positioning accuracy.

Assist removal directly can be carried out by jack or hoist engine in demolishing process, safety greatly improves, similar There is stronger reference in the bridge construction of type.

The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.

Claims (10)

1. a kind of steel case arch bridge arch springing toughened internal stress installs locating support, it to be used for toughened internal stress (4) and arch springing concrete (5) installation contraposition;The wall surface that the arch springing concrete (5) is used to align installation is interface (A), is located under interface (A) The side wall of side is supporting surface (B), and the two side walls positioned at direction across bridge are confined planes (C);
It is characterized in that, comprising:
Sub-truss group comprising multiple sub-trusses (1), the sub-truss (1) have supporting section (10) and for fixing In the construction section (11) of supporting surface (B), the supporting section (10) is equipped with the slideway for carrying toughened internal stress (4);
Two lateral Displacement truss (2);
The locating support has installation condition, and when in mounted state, multiple sub-trusses (1) are along direction across bridge interval Arrangement, and the construction section (11) is fixed on supporting surface (B);Two lateral Displacement truss (2) bottom ends are individually fixed in two A confined planes (C), top and interface (A), supporting section (10) are enclosed the space for toughened internal stress (4) sliding.
2. locating support as described in claim 1, it is characterised in that: the locating support further includes thrustor (3), works as place When installation condition, the thrustor (3) is set on the supporting section (10), and for along the side for being parallel to interface (A) To upward pushing tow toughened internal stress (4).
3. locating support as claimed in claim 2, it is characterised in that: the thrustor (3) uses jack.
4. locating support as described in claim 1, it is characterised in that: the slideway includes multiple slides (12), the slide (12) along the length direction arranged for interval of supporting section (10).
5. locating support as described in claim 1, it is characterised in that: the sub-truss (1) configured with connecting rod (14) and Anchor block (15), when in mounted state, described connecting rod (14) one end are connected with corresponding construction section (11), and the other end props up certainly Support face (B) passes through arch springing concrete (5) and is anchored on arch springing concrete (5) by the anchor block (15).
6. locating support as claimed in claim 5, it is characterised in that: the connecting rod (14) is anchored in arch by anchor block (15) On foot concrete (5) and supporting surface (B) opposite side wall.
7. locating support as described in claim 1, it is characterised in that: the locating support further include it is multiple climb cone (13), when When in installation condition, the construction section (11) is fixed on supporting surface (B) by climbing cone (13).
8. a kind of steel case arch bridge arch springing toughened internal stress alignment method, which is characterized in that it includes the following steps:
Locating support as described in claim 1 is provided;
The construction section (11) is fixed on supporting surface (B), two by multiple sub-trusses (1) along direction across bridge arranged for interval Lateral Displacement truss (2) bottom end is individually fixed in two confined planes (C);
Toughened internal stress (4) are lifted to being carried on the slideway using hoist cable (6);
The connection for unlocking the hoist cable (6) Yu toughened internal stress (4) makes toughened internal stress (4) slide onto and encircle along the slideway Foot concrete (5) contraposition.
9. alignment method as claimed in claim 8, which is characterized in that toughened internal stress (4) lifting is described to being carried on After slideway, the hoist cable (6) are unlocked with before the connection of toughened internal stress (4), and the alignment method further includes adjustment steel reinforced concrete The step of contraposition setting angle of adapter section (4).
10. alignment method as claimed in claim 9, which is characterized in that the contraposition setting angle of adjustment toughened internal stress (4) Step specifically comprises the following steps:
Thrustor (3) and steel plate pad are provided, the thrustor (3) is set on the supporting section (10);
By the thrustor (3) along the upward pushing tow toughened internal stress (4) in direction for being parallel to interface (A), until described The contraposition setting angle of toughened internal stress (4) reaches design angle;
The steel plate pad pad is set between toughened internal stress (4) and slideway.
CN201910087069.5A 2019-01-29 2019-01-29 A kind of steel case arch bridge arch springing toughened internal stress installation locating support and alignment method CN109629449A (en)

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CN201910087069.5A CN109629449A (en) 2019-01-29 2019-01-29 A kind of steel case arch bridge arch springing toughened internal stress installation locating support and alignment method

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CN201910087069.5A CN109629449A (en) 2019-01-29 2019-01-29 A kind of steel case arch bridge arch springing toughened internal stress installation locating support and alignment method

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01290806A (en) * 1988-05-16 1989-11-22 Taisei Corp Construction method for bridge
CN102071644A (en) * 2010-12-31 2011-05-25 中铁港航工程局有限公司 Lifting installation method of integral bridge arch rib
CN204199181U (en) * 2014-10-30 2015-03-11 中铁十八局集团第五工程有限公司 A kind of bridge main subarch rib docking auxiliary stand structure
CN104562936A (en) * 2014-12-08 2015-04-29 中铁六局集团有限公司 Construction method for continuous tie bar steel tube arch bridge
CN204311359U (en) * 2014-12-01 2015-05-06 中铁山桥集团有限公司 A kind of steel pipe concrete arch rib bridge arch pin is installed and is used stiffness support
CN108611958A (en) * 2018-06-20 2018-10-02 杭州江润科技有限公司 CFST Arch Bridge external wrapping concrete arch springing structure and construction method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01290806A (en) * 1988-05-16 1989-11-22 Taisei Corp Construction method for bridge
CN102071644A (en) * 2010-12-31 2011-05-25 中铁港航工程局有限公司 Lifting installation method of integral bridge arch rib
CN204199181U (en) * 2014-10-30 2015-03-11 中铁十八局集团第五工程有限公司 A kind of bridge main subarch rib docking auxiliary stand structure
CN204311359U (en) * 2014-12-01 2015-05-06 中铁山桥集团有限公司 A kind of steel pipe concrete arch rib bridge arch pin is installed and is used stiffness support
CN104562936A (en) * 2014-12-08 2015-04-29 中铁六局集团有限公司 Construction method for continuous tie bar steel tube arch bridge
CN108611958A (en) * 2018-06-20 2018-10-02 杭州江润科技有限公司 CFST Arch Bridge external wrapping concrete arch springing structure and construction method

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