CN108360387A - A kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method - Google Patents
A kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method Download PDFInfo
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- CN108360387A CN108360387A CN201810299226.4A CN201810299226A CN108360387A CN 108360387 A CN108360387 A CN 108360387A CN 201810299226 A CN201810299226 A CN 201810299226A CN 108360387 A CN108360387 A CN 108360387A
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- China
- Prior art keywords
- trusses
- girder
- sliding roadway
- roadway arch
- steel
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- Legal status (The legal status 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 status listed.)
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D12/00—Bridges characterised by a combination of structures not covered as a whole by a single one of groups E01D2/00 - E01D11/00
Abstract
The invention provides a kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method, while substructure construction, across setting up starting internode girder steel assembling support and other holders in；The assembled girder erection crane on starting internode girder steel assembling support；Assembled rigid trusses；Assembled arching loop wheel machine, in waiting for after rigid trusses is set up, arching loop wheel machine starts in setting up across sliding roadway arch；It is retreated after completing end bay steel truss girder, later end bay sliding roadway arch between bridging portion merogenesis；After across sliding roadway arch erection in the completion of arching loop wheel machine, the erection of side-span part internode sliding roadway arch is continued to complete；Interim erect-position platform is set in continuous just trusses sliding roadway arch beam-ends, integrates Longkou position；Girder erection crane erect-position installs sliding roadway arch closure segment on interim erect-position platform, completes the installation of steel truss girder sliding roadway arch.In the present invention, continuous steel girder and sliding roadway arch synchronous construction effectively shorten the installation period of girder steel itself, effectively shorten total lever factor, and construction quality is high.
Description
Technical field
The invention belongs to bridge construction technical field, more particularly, to a kind of continuous just trusses sliding roadway arch steel bridge
Rapid constructing method.
Background technology
The construction method of the rigid trusses flexible arch bridge of large span has great influence for operating expenses and duration.Currently,
The construction method of such bridge routine is that (1) superstructure or upper and lower part structure are synchronized and applied though substructure of first constructing is constructed again
Work, but superstructure needs the later stage to be adjusted in place again not on design plane or vertical position；(2) after the continuous just trusses of first construction
Construction sliding roadway arch；(3) the setting closure mouth usually in the middle part of spanning.The big bridge span distribution in silver-colored western railway road Yinchuan airport the Yellow River
For：The continuous just rigid trusses of trusses sliding roadway arch+98m freely-supporteds of rigid+2 × (3 × 168m) of trusses of 98m freely-supporteds, project scale is huge, if adopting
With conventional construction method, duration pressure is huge, and operating expenses also greatly increases.
Invention content
In view of this, the invention is intended to overcome above-mentioned defect existing in the prior art, a kind of continuous rigid purlin is proposed
Beam sliding roadway arch steel bridge rapid constructing method can effectively shorten the duration, reduce difficulty of construction, reduce operating expenses.
In order to achieve the above objectives, the technical solution of the invention is realized in：
A kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method, includes the following steps：
1. while substructure construction, across setting up starting internode girder steel assembling support and other holders in；
2. the assembled girder erection crane on starting internode girder steel assembling support；
3. utilizing the symmetrical assembled rigid trusses of the double cantilevers of girder erection crane；
4. during in the double cantilever erections of girder erection crane across rigid trusses, the assembled frame on the rigid trusses set up
Encircle loop wheel machine, in waiting for after rigid trusses is set up, arching loop wheel machine starts in setting up across sliding roadway arch；
5. girder erection crane continues double cantilever erections, retreated after completing end bay steel truss girder, end bay is soft between bridging portion merogenesis later
Property arch；After across sliding roadway arch erection in the completion of arching loop wheel machine, the erection of side-span part internode sliding roadway arch is continued to complete；
6. interim erect-position platform is arranged in continuous just trusses sliding roadway arch beam-ends, Longkou position is integrated；
7. girder erection crane erect-position installs sliding roadway arch closure segment on interim erect-position platform, the installation of steel truss girder sliding roadway arch is completed.
Further, the girder erection crane and arching loop wheel machine are all made of crawler crane.
Further, step 3. before, first the setting of girder steel starting internode can a just trusses assembled to institute carry out X, Y, Z tri-
The adjusting apparatus of direction adjustment.
Further, step 1. in, steel originates between internode assembling support and other falseworks and steel beam joint point in beam
Pad is not set.
Further, step 7. in, sliding roadway arch need to be installed under the conditions of suitable construction temperature.
Compared with the existing technology, the invention has the advantage that：
In the present invention, continuous steel girder and sliding roadway arch synchronous construction effectively shorten the installation period of girder steel itself, effectively
Shorten total lever factor.Due to that can realize superstructure and substructure synchronous construction in situ using this construction method, not only
Construction efficiency is high, also, is that substructure just participates in stress after the completion of rigid trusses is constructed in, not only increases substructure
Construction pot life, also reliably ensure that substructure construction quality.
Description of the drawings
The attached drawing for constituting the part of the invention is used for providing further understanding the invention, present invention wound
The illustrative embodiments and their description made do not constitute the improper restriction to the invention for explaining the invention.
In attached drawing：
Fig. 1~Fig. 5 is the construction procedure figure of the present invention；
Fig. 6 is continuous steel girder sliding roadway arch facade of the present invention and span centre cross-section diagram；
Fig. 7 is the structure sectional view in the directions A-A of Fig. 6；
Fig. 8 is that girder erection crane of the present invention wears arch schematic diagram；
Fig. 9 is the structure sectional view in the directions B-B in Fig. 8；
When Figure 10 is that arch springing of the present invention joins the two sections of a bridge, etc, girder erection crane erect-position schematic diagram at 13# piers；
When Figure 11 is that arch springing of the present invention joins the two sections of a bridge, etc, girder erection crane erect-position schematic diagram at 10#, 16# pier.
Specific implementation mode
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies to describe, rather than indicate
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more this feature.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
With reference to embodiment come the present invention will be described in detail create.
It is a kind of that continuously just trusses sliding roadway arch steel bridge rapid constructing method has included the following steps as shown in Fig. 1 to 11：
1. while substructure construction, across setting up starting internode girder steel assembling support and other holders in；Across
In (being not limited to hit exactly) setting girder steel originate internode assembling support 1, realize that substructure is constructed with superstructure in-situ synchronization, have
Effect shortens the construction period；
2. the assembled girder erection crane on starting internode girder steel assembling support；
3. utilizing the symmetrical assembled rigid trusses of the double cantilevers of girder erection crane；
4. during in the double cantilever erections of girder erection crane across rigid trusses, the assembled frame on the rigid trusses set up
Encircle loop wheel machine, in waiting for after rigid trusses is set up, arching loop wheel machine starts in setting up across sliding roadway arch；
5. girder erection crane continues double cantilever erections, retreated after completing end bay steel truss girder, end bay is soft between bridging portion merogenesis later
Property arch；After across sliding roadway arch erection in the completion of arching loop wheel machine, the erection of side-span part internode sliding roadway arch is continued to complete；Using setting a roof beam in place
(arch) loop wheel machine realizes the synchronous construction of rigid trusses and sliding roadway arch, accelerates girder steel speed of application, reduces the construction period.Set a roof beam in place (arch) set
It is standby to be not limited to special girder erection crane, other hanging devices such as crawler crane or gantry crane etc. can also be used；
6. interim erect-position platform is arranged in continuous just trusses sliding roadway arch beam-ends, Longkou position is integrated；Setting set a roof beam in place (arch) hang
The interim erect-position platform of machine realizes that sliding roadway arch becomes arch springing closure from conventional midspan closure, closure difficulty is reduced, when shortening closure
Between；
7. girder erection crane erect-position installs sliding roadway arch closure segment on interim erect-position platform, the installation of steel truss girder sliding roadway arch is completed.
It adjusts part horizontal-associate at sliding roadway arch arch springing and opportunity is installed, realize that arching loop wheel machine freely wears arch, realize that arching loop wheel machine is flexibly allocated, add
The installation speed of fast girder steel, shortens the construction period.
Above-mentioned girder erection crane and arching loop wheel machine are all made of crawler crane.
Before step is 3., first tri- directions X, Y, Z can be carried out to an assembled just trusses in the setting of girder steel starting internode
The adjusting apparatus of adjustment, it is ensured that starting internode steel beam position is accurate.It should be noted that adjusting apparatus referred herein can root
Select commercially available finished devices according to actual conditions, also can designed, designed, as long as can realize to tri- directions difference of rigid trusses X, Y, Z
It is adjusted.
Step 1. in, steel is originated in beam and is respectively set between internode assembling support and other falseworks and steel beam joint
Pad, it is ensured that steel truss girder joints.Step 7. in, sliding roadway arch need to be installed under the conditions of suitable construction temperature.
Using the construction method of the present invention, bridge substructure and superstructure in-situ synchronization are constructed, continuous just trusses with
Sliding roadway arch synchronous construction, arch springing closure, arching loop wheel machine wear the methods of arch and effectively improve working efficiency, reduce difficulty of construction, contract
The short duration, improve economic benefit.
A kind of feasible embodiment of construction method of the present invention is as follows：
1) while substructure construction, internode girder steel assembling support 1 is originated between assembled 11#~12#, 14#~15# piers
And other each falseworks 2, after the completion of originating internode girder steel assembly, starting internode girder steel 3 is completed using crawler crane assembly, it
It is assembled afterwards to complete girder erection crane 4 (such as Fig. 1)；
2) 4 pairs of cantilevers of girder erection crane are spelled after symmetrically setting up girder steel to 11#, 12#, 14#, 15# pier on girder steel starting internode
Shelve arch loop wheel machine 6.Meanwhile using across the freely-supported steel truss girders of 96m (such as Fig. 2) between crawler crane assembly 9#~10#, 16#~17# piers.
3) girder erection crane 4 continues the rigid trusses of double free cantilever erection end bays, and arching loop wheel machine 6 completes hogging and installs and continue after joining the two sections of a bridge, etc
The side arch (such as Fig. 3) of 6 internodes is set up toward end bay.
4) arching loop wheel machine 6 passes through the part side arch set up and hogging (such as Fig. 7), sets up another side and encircles (this end bay
Side girder erection crane 4 is removed after setting up completion steel truss girder and loop wheel machine erect-position platform 8), remaining sides arch is hung by girder erection crane 4, arching
Machine 6 sets up (such as Fig. 4).
5) closure mouth position, girder erection crane are accurately adjusted under the conditions of suitable temperature by main pier pier top three direction displacement device
4, arching loop wheel machine 6 distinguishes erect-position and (such as Fig. 8) on interim erect-position platform, completes side arch closure (such as Fig. 5).
6) after the closure of side arch, girder steel is adjusted, it is in place to fall beam.
Using construction method superstructure of the present invention, synchronous construction does not have compared with prior art in situ with substructure
There are superstructure later positions to adjust process, process is few, not only reduces construction risk and difficulty, also shortens the duration；In addition,
Reduce Superstructure Construction falsework scale of input early period, saves construction input.
In conclusion construction method provided by the invention, has the characteristics that as follows：
1, compared with construction superstructure method after substructure of first constructing, construction method of the invention：
(1) be conducive to shorten full-bridge total time of construction；(2) in across rigid trusses construction after the completion of, substructure just participate in by
Power not only increases substructure construction pot life, it is often more important that effectively with ensure substructure construction quality；(3)
It originates internode girder steel assembling support and pier-side bracket scale is substantially suitable, operating expenses is substantially suitable.
2, compared with the structure dystopy method for synchronously constructing of upper and lower part, construction method of the invention：
(1) there is no superstructure later positions to adjust process, process is few, not only reduces construction risk and difficulty, also contracts
The short duration；(2) reduce Superstructure Construction falsework scale of input early period, save construction input.
3, in the present invention, continuous steel girder and sliding roadway arch synchronous construction effectively shorten the installation period of girder steel itself, have
Effect shortens total lever factor.
3, in the present invention, the closure mouth for being conventionally located in span centre is adjusted at arch springing, steel beam rigidity at arch springing is made full use of
The feature that small, main pier carrying is big and operating space is big, may be used smaller equipment, be more convenient to lay three adjusting systems of girder steel
System realizes the accurate adjustment of closure mouth position, reduces closure difficulty, the time required to shortening closure.
4, in the present invention, optimization arch springing part horizontal-associate installs opportunity, ensures that arching loop wheel machine can pass through and has set up
Arching task can be adjusted flexibly according to construction speed in the performance of sliding roadway arch, and be conducive to equipment makes full use of and shorten frame
The beam duration.
5, in the present invention, the interim erect-position platform of loop wheel machine is set, realizes that side arch joins the two sections of a bridge, etc in arch springing.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection domain within.
Claims (5)
1. a kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method, which is characterized in that include the following steps：
1. while substructure construction, across setting up starting internode girder steel assembling support and other holders in；
2. the assembled girder erection crane on starting internode girder steel assembling support；
3. utilizing the symmetrical assembled rigid trusses of the double cantilevers of girder erection crane；
4. during in the double cantilever erections of girder erection crane across rigid trusses, assembled arching is hung on the rigid trusses set up
Machine, in waiting for after rigid trusses is set up, arching loop wheel machine starts in setting up across sliding roadway arch；
5. girder erection crane continues double cantilever erections, retreated after completing end bay steel truss girder, later end bay sliding roadway arch between bridging portion merogenesis；
After across sliding roadway arch erection in the completion of arching loop wheel machine, the erection of side-span part internode sliding roadway arch is continued to complete；
6. interim erect-position platform is arranged in continuous just trusses sliding roadway arch beam-ends, Longkou position is integrated；
7. girder erection crane erect-position installs sliding roadway arch closure segment on interim erect-position platform, the installation of steel truss girder sliding roadway arch is completed.
2. a kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method according to claim 1, it is characterised in that：It is described
Girder erection crane and arching loop wheel machine are all made of crawler crane.
3. a kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method according to claim 1, it is characterised in that：Step
3. before, first the setting of girder steel starting internode can just trusses assembled to institute carry out the adjusting apparatus that tri- directions X, Y, Z adjust.
4. a kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method according to claim 1, it is characterised in that：Step
1. in, steel originates in beam and pad is respectively set between internode assembling support and other falseworks and steel beam joint.
5. a kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method according to claim 1, it is characterised in that：Step
In 7., sliding roadway arch need to be installed under the conditions of suitable construction temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299226.4A CN108360387A (en) | 2018-04-04 | 2018-04-04 | A kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810299226.4A CN108360387A (en) | 2018-04-04 | 2018-04-04 | A kind of continuous just trusses sliding roadway arch steel bridge rapid constructing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137759A (en) * | 2018-09-29 | 2019-01-04 | 中铁第四勘察设计院集团有限公司 | A kind of prestressed concrete box girder precast segment cantilever assembling method and system |
| CN109629438A (en) * | 2019-01-11 | 2019-04-16 | 中国铁建大桥工程局集团有限公司 | Bridging method in a kind of water |
| CN109680619A (en) * | 2019-01-18 | 2019-04-26 | 中铁三局集团有限公司 | A kind of steel truss beam sling Arch Bridge Construction method big suitable for environmental restrictions |
| CN111119070A (en) * | 2019-12-24 | 2020-05-08 | 江苏中铁山桥重工有限公司 | Method for erecting W-shaped steel truss girder by adopting symmetrical gantry crane suspension assembly |
| CN112411342A (en) * | 2020-12-16 | 2021-02-26 | 昆山同济市政工程有限公司 | Construction method of prefabricated steel box girder pedestrian landscape bridge |
| CN114293473A (en) * | 2021-12-22 | 2022-04-08 | 中铁九桥工程有限公司 | Construction method of basket arch bridge |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109137759A (en) * | 2018-09-29 | 2019-01-04 | 中铁第四勘察设计院集团有限公司 | A kind of prestressed concrete box girder precast segment cantilever assembling method and system |
| CN109137759B (en) * | 2018-09-29 | 2023-12-19 | 中铁第四勘察设计院集团有限公司 | Precast cantilever assembling method and system for prestressed concrete box girder segment |
| CN109629438A (en) * | 2019-01-11 | 2019-04-16 | 中国铁建大桥工程局集团有限公司 | Bridging method in a kind of water |
| CN109680619A (en) * | 2019-01-18 | 2019-04-26 | 中铁三局集团有限公司 | A kind of steel truss beam sling Arch Bridge Construction method big suitable for environmental restrictions |
| CN111119070A (en) * | 2019-12-24 | 2020-05-08 | 江苏中铁山桥重工有限公司 | Method for erecting W-shaped steel truss girder by adopting symmetrical gantry crane suspension assembly |
| CN112411342A (en) * | 2020-12-16 | 2021-02-26 | 昆山同济市政工程有限公司 | Construction method of prefabricated steel box girder pedestrian landscape bridge |
| CN114293473A (en) * | 2021-12-22 | 2022-04-08 | 中铁九桥工程有限公司 | Construction method of basket arch bridge |
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Application publication date: 20180803 |