CN113863359A - Large rolling bed foundation structure and construction and installation method - Google Patents

Large rolling bed foundation structure and construction and installation method Download PDF

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Publication number
CN113863359A
CN113863359A CN202111225426.3A CN202111225426A CN113863359A CN 113863359 A CN113863359 A CN 113863359A CN 202111225426 A CN202111225426 A CN 202111225426A CN 113863359 A CN113863359 A CN 113863359A
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CN
China
Prior art keywords
foundation
ground beam
rolling machine
rolling
base plate
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Pending
Application number
CN202111225426.3A
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Chinese (zh)
Inventor
周明广
古纳
叶小号
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FANGCHENGGANG ZHONGYI HEAVY INDUSTRY CO LTD
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FANGCHENGGANG ZHONGYI HEAVY INDUSTRY CO LTD
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Priority to CN202111225426.3A priority Critical patent/CN113863359A/en
Publication of CN113863359A publication Critical patent/CN113863359A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/32Foundations for special purposes
    • E02D27/44Foundations for machines, engines or ordnance
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38Connections for building structures in general
    • E04B1/41Connecting devices specially adapted for embedding in concrete or masonry

Abstract

The invention discloses a large rolling bed foundation structure and a construction and installation method, wherein the large rolling bed foundation structure comprises foundation bolt assemblies embedded on a rolling bed ground beam at equal intervals, shear resisting pits are dug in the rolling bed ground beam at the front side and the rear side of each foundation bolt assembly, slurry setting block groups are poured in the rolling bed ground beam, and the elevations of the tops of the slurry setting block groups are consistent; the foundation construction method of the large rolling bed comprises the steps of erecting reinforcing foundation bolts and a shear pit template in a reinforcing mesh in a ground beam template, pouring a rolling bed ground beam in the ground beam template, pouring a mortar sitting block group and embedding a steel base plate on the rolling bed ground beam by adopting a mortar sitting mold, and correcting the steel base plate to be at the same elevation; the large rolling machine installation method comprises the steps of hoisting the rolling machine to the position right above a ground beam of the rolling machine in sections, drilling bolt holes in a lower flange plate of a steel beam and welding cross anti-shearing embedded parts, inserting the cross anti-shearing embedded parts into anti-shearing pits, enabling foundation bolts to penetrate through the bolt holes to be in place in the rolling machine, checking the tightness degree between the lower flange plate of the steel beam and a steel base plate by adopting a feeler gauge, and inserting a thin steel base plate into a larger gap position.

Description

Large rolling bed foundation structure and construction and installation method
Technical Field
The invention relates to an equipment installation technology, in particular to a large rolling bed foundation structure and a construction and installation method.
Background
In the metallurgical industry, a plurality of large production lines exist, a rolling machine is needed in some production lines, the rolling machine is used for horizontally transporting some high-heat products, for example, hot-rolled steel plates, the large rolling machine is needed when hot-rolled steel plates are transported from the hot-rolling production line to the next working procedure, the large rolling machine is hundreds of meters long, and if the rolling machine is installed unevenly, the hot-rolled steel plates on the rolling machine can deviate and hit a guardrail, so that the subsequent construction production is influenced.
Therefore, in the foundation construction of the large rolling machine, higher requirements are put forward on the foundation embedding precision.
Disclosure of Invention
In order to meet the installation requirements of the industry on large rolling machines, the invention provides a large rolling machine foundation structure and a construction and installation method thereof, so as to solve the technical problem encountered in the installation process of the large rolling machine.
The invention relates to a large rolling bed foundation structure, which adopts the technical scheme that the foundation bolt assemblies comprise foundation bolt assemblies embedded on a front rolling bed ground beam and a rear rolling bed ground beam at equal intervals, and the foundation bolt assemblies are different in that a front shear-resistant pit and a rear mortar block group are dug on the rolling bed ground beam in front of each foundation bolt assembly, and a front mortar block group and a rear shear-resistant pit are dug on the rolling bed ground beam behind each foundation bolt assembly; each foundation bolt component comprises a front foundation bolt, a rear foundation bolt, a left foundation bolt and a right foundation bolt, each mortar block group comprises a left mortar block and a right mortar block, a steel base plate is embedded into the top of each mortar block, and the steel base plates on the mortar blocks are consistent in elevation.
The invention relates to a construction method of a large rolling bed foundation structure, which comprises the following process steps:
1. according to design drawing location unwrapping wire prop up establish the grade beam template, prop in the reinforcing bar net in the grade beam template establish rag bolt and shear pit template, erect theodolite or total powerstation and adjust all rag bolts and shear pit template's elevation and location, until satisfying the drawing requirement, consolidate rag bolt and shear pit template, avoid arousing the positioning deviation because of concrete placement when vibrating.
2. And (3) casting a roller bed ground beam in the ground beam template, surveying again after final setting, casting a mortar setting block and embedding a steel base plate on the roller bed ground beam by adopting a mortar setting mould, controlling the elevation of the steel base plate, and measuring the elevation of the steel base plate by adopting a theodolite or a total station after the final setting of the grouting material.
The invention relates to a method for installing a large rolling machine on a foundation structure, which adopts the scheme that the steps are as follows:
1. and hoisting the rolling machine to the position right above the ground beam of the rolling machine in sections, marking the positions of bolt holes aligned with the corresponding foundation bolts on the lower flange plate of the steel beam at the bottom of the rolling machine, and drilling on site until all the bolt holes are drilled.
2. Welding a cross anti-shearing embedded part aligned with the corresponding anti-shearing pit on the lower flange plate of the steel beam, slowly descending the rolling machine, inserting each cross anti-shearing embedded part into the corresponding anti-shearing pit and enabling each foundation bolt to penetrate through the corresponding bolt hole to enable the rolling machine to be located on the slurry block in the area, checking the tightness degree of the lower flange plate of the steel beam and the steel base plate on the slurry block by adopting a feeler gauge, and inserting a thin steel base plate at the larger position of the gap.
3. And (5) initially screwing double nuts on the bolts of each foundation, leveling the roller bed by using an instrument, and then screwing the double nuts.
4. Grouting and pouring in the shear resistant pit and vibrating to compact.
5. And (3) erecting templates on the left side wall and the right side wall of the ground beam of the rolling bed, grouting and pouring to the position parallel to the lower flange plate of the steel beam, and removing the templates after the grouting material is finally set.
The invention has the beneficial effects that:
1. in the foundation structure of the large rolling machine, the slurry sitting block group on the ground beam of the rolling machine is adopted to support the installation of the rolling machine, the slurry sitting block group is early effective, and the integral levelness of the rolling machine is ensured.
2. According to the installation method of the large rolling machine, the shear-resistant cross embedded part is manufactured on site, assembly and welding are carried out on site, rework is avoided, the problem that part of foundation bolts cannot be installed in bolt holes is solved, rework amount is reduced, waste of manpower and material resources is avoided, the contact area of the rolling machine and a ground beam of the rolling machine is increased due to the cross shear-resistant embedded part, and the shear resistance between the rolling machine and a foundation structure is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a top view of fig. 1.
FIG. 3 is a schematic view of the roller bed of the embodiment of FIG. 1.
Fig. 4 is a partially enlarged view of a portion a in fig. 3.
Fig. 5 is a partially enlarged view of B in fig. 4.
Fig. 6 is a schematic structural view (top view) of a mortar setting mold for casting the mortar setting block in fig. 5.
And (3) identifying the figure number: 1. a rolling bed ground beam; 2. a shear pit; 3. anchor bolts; 4. setting a pulp block; 5. a steel backing plate; 6. rolling the bed; 7. a cross shear resistant insert; 8. double nuts; 9. a thin steel backing plate; 10. and (5) setting the pulp mould.
Detailed Description
The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.
The invention relates to a large rolling bed foundation structure, which comprises a rolling bed ground beam 1 which is arranged in the front and back direction and is used for installing a rolling bed 6, wherein more than ten groups of foundation bolt assemblies are embedded in the rolling bed ground beam 1 in the front and back at equal intervals, each foundation bolt assembly comprises a front foundation bolt 3, a back foundation bolt 3 and a left foundation bolt 3, taking the C group of foundation bolt assemblies as an example, a front shear resisting pit 2 (dug) and a back mortar sitting block group (poured left and right mortar sitting blocks 4) are arranged in front of the front left and right foundation bolts 3, a front mortar sitting block group (poured left and right mortar sitting blocks 4) and a back shear resisting pit 2 (dug) are arranged behind the back left and right foundation bolts 3, the large rolling bed foundation structure is compact, a shear resisting pit 2 is shared between the adjacent foundation bolt assemblies, a steel base plate 5 is embedded in the top of each mortar sitting block 4, the steel base plate 5 on each mortar sitting block 4 is at the same horizontal plane, as shown in fig. 1, 2, and 5.
The invention relates to a construction method of a large rolling bed foundation structure, which comprises the following process steps:
1. according to design drawing location unwrapping wire, prop up and establish the grade beam template and weave the reinforcing bar net in the grade beam template after, according to drawing location built-in fitting, with all rag bolts 3 pre-buried and prick the silk and tentatively fix on basic reinforcing bar, measure the correction with theodolite or total powerstation to the elevation and vertical (preceding, back), horizontal (left and right) coordinate of each pre-buried rag bolt 3, consolidate all pre-buried rag bolts 3 after all qualified, fix the bottom spot welding of each rag bolt 3 on basic reinforcing bar.
2. The method comprises the steps of preparing a shear pit mold by using waste templates which are used as local materials, fixing the shear pit mold on foundation steel bars according to the position of a shear pit 2 in a construction drawing, measuring and correcting by using a theodolite, reinforcing, pouring concrete in a ground beam template, setting finally, and then re-measuring.
3. After the concrete strength of the foundation beam meets the requirement, pouring each grouting block 4 on the ground beam 1 of the roller bed by adopting a grouting mold 10 (which is placed at least 20mm away from the front or the rear of the corresponding foundation bolt 3), wherein scale marks are arranged on the inner side of the grouting mold 10, high-strength non-shrinkage grouting material is selected for grouting, the grouting material is stirred into a semi-dry shape by using a small amount of water, the stirred grouting material is placed into the grouting mold 10 to be compacted, a steel base plate 5 with the thickness of 10mm is placed into the grouting material, the grouting material is lightly hammered into corresponding scales by using a rubber hammer, the level of the steel base plate 5 is ensured in the pressing process, a proper amount of water is added, and the grouting mold 10 is removed after the grouting material is initially set, as shown in fig. 1, fig. 2, fig. 5 and fig. 6.
4. And after the grouting material is finally set, measuring the elevation of the steel base plate 5 by adopting a theodolite or a total station.
The invention relates to a method for installing a large rolling machine, which adopts the scheme that the steps are as follows:
1. the rolling machine 6 is lifted to the position right above a rolling machine ground beam 1 in a segmented mode through a travelling crane, as shown in figures 3 and 4, the first section of rolling machine 6 is lifted to the front portion of the rolling machine ground beam 1 (two groups of foundation bolt assemblies, four groups of foundation block sets and two shear resistant pits 2 are correspondingly arranged on the rolling machine ground beam 1) and is slowly lowered until the rolling machine ground beam stops at a position 50 mm-100 mm away from the position right above the foundation bolt assemblies, bolt hole positions (aligned with the corresponding foundation bolts 3) and positions (aligned with the corresponding shear resistant pits 2) of the cross shear resistant embedded parts 7 (cross-shaped plate welded parts) are marked on the bottom of a steel beam lower flange plate of the rolling machine 6, bolt holes are formed in a hollow drill or a magnetic drill on site, and the cross shear resistant embedded parts 7 are welded at corresponding positions on the bottom of the steel beam lower flange plate through gas shielded welding.
2. The first section of rolling machine 6 is slowly descended and installed on the steel backing plates 5 of the four groups of mortar-sitting blocks and the eight mortar-sitting blocks 4 in a hole (the foundation bolts 3 are aligned with the bolt holes and the cross anti-shearing embedded part 7 is aligned with the anti-shearing pit 2), at least one steel gasket with the same thickness as the lower flange plate of the steel beam is placed on each foundation bolt 3, and the double nuts 8 are initially screwed to lightly press the steel gasket on the lower flange plate of the steel beam.
3. The size of a gap between the steel base plate 5 on each mortar block 4 and the bottom of the lower flange plate of the steel beam is checked by a feeler gauge, and the thin steel base plate 9 is inserted to fill the gap so that the lower flange plate of the steel beam is tightly contacted with the steel base plate 5 on each mortar block 4.
4. The elevation positioning of the whole rolling bed 6 is measured and corrected by a theodolite or a total station, the lower flange plate of the steel beam is compressed by screwing the double nuts 8, the shear-resistant pit 2 is filled with grouting material, the cross shear-resistant embedded part 7 is firmly connected with the rolling bed ground beam 1, the cross shear-resistant embedded part 7 increases the contact area between the rolling bed 6 and the rolling bed ground beam 1, and the shear resistance in all directions on the horizontal plane is increased.
5. Processing and customizing a batch of encaustic tiles (as templates) with the width of 300mm, fixing the encaustic tiles on the upper parts of the left side wall and the right side wall of the rolling bed ground beam 1 by a nail gun, pouring to the position which is parallel and level with the lower flange plate of the steel beam by adopting a grouting material self-leveling technology, and removing the encaustic tiles after the grouting material is finally set.

Claims (3)

1. Large-scale roller bed foundation structure buries the rag bolt subassembly in a preceding, back roller bed ground beam (1) including the equidistance interval underground, its characterized in that: a rolling bed ground beam (1) in front of each foot bolt assembly is dug to form a front anti-shearing pit (2) and a rear slurry sitting block group, and the rolling bed ground beam (1) behind each foot bolt assembly is formed with a front slurry sitting block group and a rear anti-shearing pit (2); each foundation bolt component comprises a front foundation bolt, a rear foundation bolt, a left foundation bolt and a right foundation bolt (3), each mortar block group comprises a left mortar block and a right mortar block (4), a steel base plate (5) is embedded into the top of each mortar block (4), and the elevations of the steel base plates (5) on the respective mortar blocks (4) are consistent.
2. A method for constructing a foundation of a large rolling bed, characterized in that the foundation structure of a large rolling bed according to claim 1 is constructed by the steps of:
firstly, positioning, paying off and erecting a ground beam template according to a design drawing, erecting foundation bolts (3) and a shear pit template in a reinforcing mesh in the ground beam template, erecting a theodolite or a total station to adjust the elevations and the positioning of all the foundation bolts (3) and the shear pit template until the requirements of the drawing are met, reinforcing the foundation bolts (3) and the shear pit template, and avoiding positioning deviation caused by concrete pouring and vibrating;
secondly, casting a roller bed ground beam (1) in the ground beam template, surveying again after final setting, casting a mortar setting block (4) and embedding a steel base plate (5) on the roller bed ground beam (1) by adopting a mortar setting mould (10), controlling the elevation of the steel base plate (5), and measuring the elevation of the steel base plate (5) by adopting a theodolite or a total station after the mortar setting is finished.
3. The method for installing the large rolling machine is characterized in that the rolling machine (6) is installed in place on the large rolling machine foundation structure built by the method for constructing the large rolling machine foundation according to the claim 2, and the method comprises the following steps:
firstly, hoisting a rolling machine (6) to a position right above a rolling machine ground beam (1) in a segmented manner, marking the positions of bolt holes aligned with corresponding foundation bolts (3) on a steel beam lower flange plate at the bottom of the rolling machine (6), and drilling on site until all the bolt holes are drilled;
welding cross anti-shearing embedded parts (7) aligned with the corresponding anti-shearing pits (2) on a lower flange plate of the steel beam, slowly descending a rolling machine (6), inserting the cross anti-shearing embedded parts (7) into the corresponding anti-shearing pits (2) and enabling foundation bolts (3) to penetrate through corresponding bolt holes to enable the rolling machine (6) to be located on a mortar block (4) in the area where the cross anti-shearing embedded parts are located, checking the tightness degree of the steel beam lower flange plate and a steel base plate (5) on the mortar block (4) by adopting a clearance gauge, and inserting a thin steel base plate (9) into a larger gap;
thirdly, double nuts (8) on the foundation bolts (3) are screwed for the first time, and the double nuts (8) are screwed after the rolling bed (6) is leveled by an instrument;
fourthly, grouting and pouring in the shear resistant pit (2) and vibrating to compact;
and fifthly, erecting templates on the left side wall and the right side wall of the roller bed ground beam (1), grouting and pouring to the position flush with the lower flange plate of the steel beam, and removing the templates after the grouting material is finally set.
CN202111225426.3A 2021-10-21 2021-10-21 Large rolling bed foundation structure and construction and installation method Pending CN113863359A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111225426.3A CN113863359A (en) 2021-10-21 2021-10-21 Large rolling bed foundation structure and construction and installation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111225426.3A CN113863359A (en) 2021-10-21 2021-10-21 Large rolling bed foundation structure and construction and installation method

Publications (1)

Publication Number Publication Date
CN113863359A true CN113863359A (en) 2021-12-31

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ID=78996897

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Application Number Title Priority Date Filing Date
CN202111225426.3A Pending CN113863359A (en) 2021-10-21 2021-10-21 Large rolling bed foundation structure and construction and installation method

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CN (1) CN113863359A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR445642A (en) * 1912-06-11 1912-11-15 Frank Albe Lane Improved method and apparatus for erecting walls or other concrete constructions
CN104016059A (en) * 2014-06-18 2014-09-03 机械工业第四设计研究院有限公司 Roller bed used for conveying ultra-long and ultra-heavy workpieces
CN106801433A (en) * 2017-03-31 2017-06-06 中国化学工程第七建设有限公司 The seat slurry method construction technique that a kind of equipment is installed without parallels
CN109706956A (en) * 2019-01-24 2019-05-03 沈阳建筑大学 A kind of rectangular built-in fitting device with circular hole

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR445642A (en) * 1912-06-11 1912-11-15 Frank Albe Lane Improved method and apparatus for erecting walls or other concrete constructions
CN104016059A (en) * 2014-06-18 2014-09-03 机械工业第四设计研究院有限公司 Roller bed used for conveying ultra-long and ultra-heavy workpieces
CN106801433A (en) * 2017-03-31 2017-06-06 中国化学工程第七建设有限公司 The seat slurry method construction technique that a kind of equipment is installed without parallels
CN109706956A (en) * 2019-01-24 2019-05-03 沈阳建筑大学 A kind of rectangular built-in fitting device with circular hole

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