CN111851569B - Gantry crane track foundation beam and construction method thereof - Google Patents
Gantry crane track foundation beam and construction method thereof Download PDFInfo
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- CN111851569B CN111851569B CN202010836103.7A CN202010836103A CN111851569B CN 111851569 B CN111851569 B CN 111851569B CN 202010836103 A CN202010836103 A CN 202010836103A CN 111851569 B CN111851569 B CN 111851569B
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- 238000010276 construction Methods 0.000 title claims abstract description 14
- 239000004567 concrete Substances 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 49
- 239000010959 steel Substances 0.000 claims description 49
- 230000002787 reinforcement Effects 0.000 claims description 26
- 238000013461 design Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000013011 mating Effects 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000004062 sedimentation Methods 0.000 abstract description 2
- 239000011150 reinforced concrete Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011178 precast concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to the field of gantry crane foundation construction, in particular to a gantry crane track foundation beam and a construction method thereof. Including the foundation beam body, the foundation beam body is concrete structure, and the foundation beam includes a plurality of standard festival section roof beam, and the pre-buried backup pad that has in standard festival section roof beam top is provided with the track in the backup pad, has reserved the hoist hole that link up on the standard festival section roof beam, and pre-buried has the fixed plate on one side facade of standard festival section roof beam. The invention not only can reduce the concrete cracks of the foundation beam, but also is convenient for transferring and transporting after the use, uneven and sedimentation are avoided through the pre-embedded fixing plates of the side elevation of each section of standard section beam, the service life of the gantry crane track foundation beam is prolonged, the construction period is shortened, and the installation quality is improved.
Description
Technical Field
The invention relates to the field of gantry crane foundation construction, in particular to a gantry crane track foundation beam and a construction method thereof.
Background
The portal crane is mainly used for loading and unloading operations of outdoor goods yards, stock yards and bulk goods. The metal structure of the gantry crane is like a portal frame, two supporting legs are arranged below the bearing main beam, the bearing main beam can directly walk on a track on the ground, and the two ends of the main beam can be provided with overhanging cantilever beams.
The gantry crane track often needs to be laid with a foundation to bear the gravity of the gantry crane, so that the gantry crane can move along the track. The existing gantry crane foundation is constructed in a cast-in-place mode, namely, the concrete strip foundation on the same plane is integrally poured, and the traditional gantry crane foundation is long in structural length and short in service life, although the material consumption is large.
The cylindrical reinforced concrete and profile steel mixed gantry crane comprises two rows of cylindrical reinforced concrete foundations which are arranged at intervals, wherein the top surfaces of the cylindrical reinforced concrete foundations are respectively fixed with a pre-buried steel plate, each row of cylindrical reinforced concrete foundations on the pre-buried steel plate is provided with a double-row I-shaped steel for connecting each cylindrical reinforced concrete foundation, and the tracks are fixed on the double-spliced I-shaped steel. Although a great deal of cost is saved in the structure, as the gantry crane foundation is of a separated column structure, uneven stress of each column foundation is easy to occur, and even safety accidents can be possibly caused. And the cast-in-situ gantry crane foundation beam has long construction period, and can apply heavy load after 28 days of concrete pouring. Sometimes, the construction period is delayed due to the restriction of the site of site collection and the inability of construction in advance, the foundation can be used once, and the dismantling cost is paid when the foundation is dismantled.
Disclosure of Invention
In order to solve the technical problems, the invention provides the gantry crane track foundation beam which is simple to assemble, short in manufacturing period and capable of being reused and the construction method thereof.
The invention adopts the following technical scheme:
The utility model provides a portal crane track foundation beam, includes the foundation beam body, and the foundation beam body is concrete structure, and the foundation beam includes a plurality of standard festival section roof beams, and the pre-buried backup pad that has in standard festival section roof beam top is provided with the track in the backup pad, has the hoist hole that link up in the reservation on the standard festival section roof beam, and pre-buried has the fixed plate on one side elevation of standard festival section roof beam.
Compared with the prior art, the invention has the beneficial effects that:
the invention has relatively simple manufacture and installation and shortens the construction period.
Further, the invention adopts the following preferable scheme:
the track is connected with the embedded steel plate through a track pressing device.
The bottom of backup pad is provided with the embedded bar, and the both ends of embedded bar are fixed with the vertical atress reinforcing bar of standard festival section roof beam.
And two ends of the side elevation of the standard section beam are respectively reserved with a hoisting hole, and the hoisting holes are transversely communicated along the standard section beam.
The center distance of the two hoisting holes is 2-3 m respectively from one end head of the standard section beam.
The two adjacent standard section beams are welded into a whole with the pre-buried fixed plates on the standard section beams at the two sides through the connecting plates.
The construction method of the gantry crane track foundation beam comprises the following steps:
A. Pouring a cushion layer: according to the drawing, a gantry crane foundation is lofted, then excavation is carried out to the bottom elevation of a foundation cushion layer, and the cushion layer is poured after tamping to form a strip foundation;
B. binding reinforcing steel bars: the binding steel bars are bound in a segmented mode, a pipe reserved hoisting hole is horizontally placed at the lower part of each section of steel bar framework bound with the standard section beam according to the position of the hoisting hole, and each section of steel bar framework is isolated through a partition plate;
C. Pre-buried backup pad, fixed plate: the surfaces of the support plate and the fixed plate are coated with antirust paint, the support plate is respectively arranged at the top of the steel reinforcement framework of each standard section beam, and the support plate is welded with longitudinal stress steel bars of the steel reinforcement framework through embedded steel bars at the bottom of the support plate; fixing plates are arranged at two ends of the side elevation of each section of the steel reinforcement framework according to the drawing, and the fixing plates are welded with longitudinal stress steel bars of the steel reinforcement framework through embedded steel bars at the bottom of the fixing plates;
D. And (3) supporting a die: coating a release agent on the surface of the template contacted with concrete, supporting the template around the steel reinforcement framework of the standard section beam, checking the height difference of the template after the template is supported, and adjusting the unqualified template height difference until the template height difference is qualified;
E. Pouring concrete; pouring the standard section beam, cleaning the surface of the embedded part when the concrete is not initially set after pouring, and curing the concrete;
F. removing the die: after the concrete reaches the strength, removing the mould, and performing secondary anti-corrosion work on the support plate and the fixing plate after removing the mould;
G. hoisting equipment passes through the hoisting hole through the wire rope and hoists the standard section beam to the installation site for laying, welds into a whole with the pre-buried fixed plate of standard section beam side elevation through the connecting plate between two adjacent standard section beams until the pavement of portal crane foundation beam is accomplished according to the design demand, then installs the track at the top of portal crane foundation beam, then installs the portal crane on the track.
Compared with the prior art, the method has the beneficial effects that:
According to the method, concrete cracks of the foundation beam are reduced by segmental pouring, the transfer and the transportation after the use are finished are convenient, uneven and sedimentation are avoided through the embedded fixing plates of the side vertical faces of each standard segmental beam, and the service life of the gantry crane track foundation beam is prolonged.
Drawings
FIG. 1 is a schematic view of a structure of a standard segment beam;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a view A-A of FIG. 2;
FIG. 4 is a view in the B direction of FIG. 2;
FIG. 5 is a schematic illustration of two standard segment beams after connection;
in the figure: a standard segment beam 1; a side elevation 101; a support plate 2; a track 3; a rail presser 4; a fixing plate 5; a lifting hole 6; and a connection plate 7.
Detailed Description
The invention is further described below with reference to the drawings and specific examples.
The foundation beam comprises a foundation beam body, wherein the foundation beam body is an integral structure formed by splicing a plurality of standard section beams 1 of precast concrete structures.
The standard section beam 1 is a square beam, the top of the standard section beam 1 is embedded with a supporting plate 2, embedded bars are welded at equal intervals on the bottom of the supporting plate 2 along the long side direction of the supporting plate 2, the embedded bars are transversely arranged at the bottom of the supporting plate 2, and two ends of the embedded bars extend into the steel reinforcement framework of the standard section beam 1 respectively and are welded with longitudinal stress steel bars of the steel reinforcement framework.
The upper surface of backup pad 2 is provided with a track 3 along backup pad 2 length direction, and equidistant rail pressing ware 4 that is provided with on the track 3, rail pressing ware 4 weld fix the track 3 at backup pad 2 upper surface.
And a hoisting hole 6 is reserved at the positions which are 2m away from the left end and the right end of the standard section beam 1 (the distance from the center of the hoisting hole 6 to the end of the standard section beam 1 is 2 m), the hoisting hole 6 is arranged on the side elevation 101 of the standard section beam 1, the hoisting hole 6 is transversely penetrated in the standard section beam 1, and one end of a steel wire rope penetrates from the front side elevation 101 to the rear side elevation 101 of the standard section beam 1 and is hoisted by using hoisting equipment.
The left end and the right end of one side elevation 101 of the standard section beam 1 are respectively provided with a fixed plate 5, the back of the fixed plate 5 is welded with embedded bars, and the two ends of the embedded bars respectively extend into the steel bar framework of the standard section beam 1 and are welded with longitudinal stress steel bars of the steel bar framework. The two adjacent standard section beams 1 are fixed through a connecting plate 7, two ends of the connecting plate 7 are welded with a fixed plate 5 pre-buried at the end part of one standard section beam 1 respectively, and the standard section beams 1 are connected into a whole through the connecting plate 7.
The invention is carried out according to the following steps when in manufacturing and application:
A. Pouring a cushion layer: and carrying out portal crane foundation Liang Fangyang according to a drawing, carrying out excavation after measurement, excavating to the bottom elevation of a foundation cushion layer, tamping by using a manual tamper, and finally pouring a cushion layer part, wherein the poured cushion layer part forms a strip-shaped foundation.
B. binding reinforcing steel bars: the reinforcement cage of the gantry crane track foundation beam is bound in a segmented mode on the basis of the strip, namely the reinforcement cage of the gantry crane track foundation beam is divided into a plurality of reinforcement cages of standard section beams 1 with equal length, a partition plate is placed between two adjacent reinforcement cages, the partition plate in the embodiment is a wood plate, and the two sections of reinforcement cages are isolated by the wood plate; and a plastic pipe or an iron sleeve is horizontally placed at the lower parts of the left end and the right end of each section of steel reinforcement framework respectively according to the positions of the hoisting holes 6 to reserve the hoisting holes 6.
C. pre-buried backup pad 2, fixed plate 5: the surfaces of the support plate 2 and the fixed plate 5 are coated with antirust paint, the support plate 2 is respectively arranged at the top of the steel reinforcement framework of each standard section beam 1, embedded bars are transversely welded on the lower surface of the support plate 2, and two ends of each embedded bar respectively extend into the steel reinforcement framework and are welded with longitudinal steel bars on the steel reinforcement framework; fixing plates 5 are respectively arranged at two ends of a side elevation 101 of each section of the steel reinforcement framework according to the drawing, embedded bars are welded on the left side face of the fixing plates 5, and two ends of each embedded bar extend into the steel reinforcement framework and are welded with the steel bars which are longitudinally stressed on the steel reinforcement framework.
D. And (3) supporting a die: and (3) coating a release agent on the surface of the template contacted with the concrete, supporting the template around the reinforcement cage of the standard section beam 1, checking the height difference of the template through a level gauge after the template is supported, enabling the height difference of the template to be consistent, and adjusting until the template is qualified when the height difference of the template is unqualified.
E. Pouring concrete; pouring the steel reinforcement framework of the standard segmental beam 1, cleaning the surfaces of the support plate 2 and the fixed plate 5 before initial setting of concrete, and simultaneously, using warning lines or red flags for installation protection and curing the concrete.
F. Removing the die: after the concrete reaches the strength, the mould is removed, the support plate 2 and the fixed plate 5 are subjected to secondary anti-corrosion work after the mould is removed, and the plastic pipe or the iron sleeve used for reserving the lifting hole 6 in the second step is removed.
G. The hoisting equipment is used for hoisting steel wire ropes to pass through the hoisting holes 6 at the two ends of the standard section beams 1 respectively, then hoisting the standard section beams 1 to the installation site for paving through the hoisting equipment, connecting the ends of all the standard section beams 1 in sequence, welding two adjacent sections of standard section beams 1 with the fixed plates 5 pre-buried in the side vertical faces 101 of the standard section beams 1 at the two sides into a whole through the connecting plates 7 until the pavement of the gantry crane foundation beams is finished according to design requirements, ensuring the consistency of the heights of all the spliced standard section beams 1, enabling all the supporting plates 2 to be on the same plane, installing the track 3 at the top of the gantry crane foundation beams, and installing the gantry crane on the track 3.
In this embodiment, the processing of the support plate 2 and the fixing plate 5 is completed in the processing factory according to the design drawing, and the support plate 2 is completed. The surface of the fixing plate 5 is respectively subjected to leveling and straightening treatment, and burrs are smoothed by a portable grinder.
In the formwork supporting process, the formwork is tightly installed, the slurry leakage phenomenon cannot occur, and the smooth and flat surface of the concrete beam is ensured.
The template support must be firm and can not appear the phenomenon of mould rising, want to guarantee the geometry of foundation beam.
In the invention, in order to avoid uneven settlement between each section of standard section beam 1, fixing plates 5 are respectively pre-embedded on the side elevation 101 of the end head position beam of each section of standard section beam 1, then the fixing plates 5 on two sides are welded into a stressed whole by using a connecting plate 7 at the joint position between two adjacent sections of standard section beams 1, when the concentrated load moves on a track 3, the load transmitted to the ground by the track 3 by the concentrated load can be equivalently formed into an even load, and uneven settlement caused by different stressed positions is reduced.
The above is only a specific embodiment of the present invention, but the present invention is not limited thereto, and all equivalent changes or substitutions to the technical features of the present invention, which are conceivable to those skilled in the art, are included in the scope of the present invention.
Claims (2)
1. The construction method of the gantry crane track foundation beam comprises a foundation beam body, wherein the foundation beam body is of a concrete structure, and is characterized in that: the foundation beam comprises a plurality of standard section beams, a supporting plate is pre-buried at the top of each standard section beam, a track is arranged on each supporting plate, a through hoisting hole is reserved in each standard section beam, a fixing plate is pre-buried on one side elevation of each standard section beam, and the foundation beam is carried out according to the following steps:
A. Pouring a cushion layer: according to the drawing, a gantry crane foundation is lofted, then excavation is carried out to the bottom elevation of a foundation cushion layer, and the cushion layer is poured after tamping to form a strip foundation;
B. binding reinforcing steel bars: the binding steel bars are bound in a segmented mode, a pipe reserved hoisting hole is horizontally placed at the lower part of each section of steel bar framework bound with the standard section beam according to the position of the hoisting hole, and each section of steel bar framework is isolated through a partition plate;
C. Pre-buried backup pad, fixed plate: the surfaces of the support plate and the fixed plate are coated with antirust paint, the support plate is respectively arranged at the top of the steel reinforcement framework of each standard section beam, and the support plate is welded with longitudinal stress steel bars of the steel reinforcement framework through embedded steel bars at the bottom of the support plate; fixing plates are arranged at two ends of the side elevation of each section of the steel reinforcement framework according to the drawing, and the fixing plates are welded with longitudinal stress steel bars of the steel reinforcement framework through embedded steel bars at the bottom of the fixing plates;
D. And (3) supporting a die: coating a release agent on the surface of the template contacted with concrete, supporting the template around the steel reinforcement framework of the standard section beam, checking the height difference of the template after the template is supported, and adjusting the unqualified template height difference until the template height difference is qualified;
E. Pouring concrete; pouring the standard section beam, cleaning the surface of the embedded part when the concrete is not initially set after pouring, and curing the concrete;
F. removing the die: after the concrete reaches the strength, removing the mould, and performing secondary anti-corrosion work on the support plate and the fixing plate after removing the mould;
G. Hoisting equipment passes through the hoisting hole through the wire rope and hoists the standard section girder to the installation site and lays, welds into a whole with the pre-buried fixed plate of standard section girder side elevation through the connecting plate between two adjacent standard section girders until the mating formation of portal crane foundation beam is accomplished according to the design demand, then installs the track at the top of portal crane foundation beam, then installs the portal crane on the track.
2. The method for constructing the gantry crane track foundation beam according to claim 1, wherein: the track is connected with the embedded steel plate through a track pressing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836103.7A CN111851569B (en) | 2020-08-19 | 2020-08-19 | Gantry crane track foundation beam and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010836103.7A CN111851569B (en) | 2020-08-19 | 2020-08-19 | Gantry crane track foundation beam and construction method thereof |
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| Publication Number | Publication Date |
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| CN111851569A CN111851569A (en) | 2020-10-30 |
| CN111851569B true CN111851569B (en) | 2024-05-14 |
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| CN202010836103.7A Active CN111851569B (en) | 2020-08-19 | 2020-08-19 | Gantry crane track foundation beam and construction method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112900280A (en) * | 2021-02-02 | 2021-06-04 | 中铁四局集团第三建设有限公司 | Bridge prefabricated bent cap installation in-place construction method and construction structure |
| CN117188224B (en) * | 2023-08-22 | 2024-03-08 | 中铁十一局集团有限公司 | Recyclable track beam and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202414979U (en) * | 2011-10-28 | 2012-09-05 | 上海宝钢工业检测公司 | Base-adjustable track connecting device on concrete base |
| CN106758562A (en) * | 2017-04-08 | 2017-05-31 | 中国二十二冶集团有限公司 | The installation method that track foundation built-in fitting is integrally fixed with track |
| CN206887991U (en) * | 2017-06-23 | 2018-01-16 | 中铁十二局集团第二工程有限公司 | A kind of straddle truck basis |
| CN110172878A (en) * | 2019-05-21 | 2019-08-27 | 中国华冶科工集团有限公司 | Ground transport pwoer track installing method |
| CN212294735U (en) * | 2020-08-19 | 2021-01-05 | 中国二十二冶集团有限公司 | Gantry crane track foundation beam |
-
2020
- 2020-08-19 CN CN202010836103.7A patent/CN111851569B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202414979U (en) * | 2011-10-28 | 2012-09-05 | 上海宝钢工业检测公司 | Base-adjustable track connecting device on concrete base |
| CN106758562A (en) * | 2017-04-08 | 2017-05-31 | 中国二十二冶集团有限公司 | The installation method that track foundation built-in fitting is integrally fixed with track |
| CN206887991U (en) * | 2017-06-23 | 2018-01-16 | 中铁十二局集团第二工程有限公司 | A kind of straddle truck basis |
| CN110172878A (en) * | 2019-05-21 | 2019-08-27 | 中国华冶科工集团有限公司 | Ground transport pwoer track installing method |
| CN212294735U (en) * | 2020-08-19 | 2021-01-05 | 中国二十二冶集团有限公司 | Gantry crane track foundation beam |
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| CN111851569A (en) | 2020-10-30 |
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