CN111411643A - Construction method of construction elevator foundation supported on basement top plate - Google Patents
Construction method of construction elevator foundation supported on basement top plate Download PDFInfo
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- CN111411643A CN111411643A CN202010161243.9A CN202010161243A CN111411643A CN 111411643 A CN111411643 A CN 111411643A CN 202010161243 A CN202010161243 A CN 202010161243A CN 111411643 A CN111411643 A CN 111411643A
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- basement
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- construction elevator
- top plate
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
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- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a construction method of a construction elevator foundation supported on a basement top plate, which comprises the following steps: cleaning a top plate of the basement; the basement structure is reinforced; manufacturing and installing a profile steel support for constructing a basic stress structure of the elevator; installing a construction elevator foundation stress structure on a top plate of the basement, wherein a construction elevator foundation installation area is positioned on the stress structure; sealing the installation area of the construction elevator foundation; pre-burying a foundation embedded part of a construction elevator; erecting a template and arranging ribs in the installation area, and pouring concrete to form a construction elevator foundation; and (5) installing a construction elevator. The invention has the beneficial effects that: according to the reinforced basement structure, the construction elevator foundation is designed on the profile steel structure, the construction elevator load is sequentially transmitted to the basement top plate combined structure member and the vertical structure member by using the profile steel structure, and the interference to the installation and construction of the basement is avoided during the use period of the construction elevator.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of a construction elevator foundation supported on a basement top plate.
Background
In building construction, how to carry out vertical transportation is always a difficult and difficult problem which troubles high-rise and super-high-rise construction. At present, a construction elevator is used as one of main tools for vertical transportation, a common construction elevator foundation is located on a basement bottom plate, an elevator standard knot penetrates through a floor slab and extends out of the ground, and an elevator car does not necessarily get down from the basement in the operation process of the construction elevator; but due to the existence of the standard knot, certain interference is caused to the installation and construction of the basement. For a project with a super high rise, the installation and construction of a basement are complex, pipelines are more, the basement can be accepted earlier than a structure on the ground, and the installation construction progress and the acceptance progress of the basement are seriously interfered due to the existence of a standard section of a construction elevator.
Disclosure of Invention
The invention aims to provide a construction method of a construction elevator foundation supported on a top plate of a basement aiming at the defects of the prior art, and solves the problem that the standard knot of the construction elevator in the prior art influences the installation and construction of the basement.
The technical scheme adopted by the invention is as follows: a construction method of a construction elevator foundation supported on a top plate of a basement comprises the following steps:
firstly, cleaning a top plate of a basement;
secondly, reinforcing the basement structure;
step three, manufacturing and installing a profile steel support for constructing a stress structure of the elevator foundation;
step four, installing a construction elevator foundation stress structure on the top plate of the basement, wherein the construction elevator foundation installation area is positioned on the stress structure;
step five, sealing the installation area of the construction elevator foundation;
step six, pre-embedding a foundation embedded part of the construction elevator;
step seven, erecting a template and arranging ribs in the installation area, and then pouring concrete to form a construction elevator foundation;
and step eight, installing the construction elevator.
According to the scheme, in the fourth step, the stress structure comprises four H-shaped steels, the ends of the H-shaped steels are installed on the support, and the four H-shaped steels are integrally arranged on the top plate of the basement in a # -shaped manner; the area enclosed by the four H-shaped steels 1 is an installation area of a construction elevator foundation.
According to the scheme, in the first step, sundries and storage yards on the top plate surface of the basement are cleaned, the plate surface is kept free of additional loads, the structural plate cannot deform due to the additional loads during steel bonding construction, and the temporary railing for construction is used for enclosing the top plate surface area to be constructed.
According to the scheme, in the second step, the bottom surface of the top plate of the basement is reinforced by adopting a steel-bonded plate; and simultaneously, carrying out bonded steel reinforcement on the structural beam bottom and the support beam surface.
According to the scheme, in the second step, if the structural beam is arranged right below the foundation position of the construction elevator, the structural beam is preferentially reinforced, the strip-shaped steel plates are bonded with steel at the bottom of the structural beam along the length direction, and the two ends L/4 of the structural beam span the range of the U-shaped hoop.
According to the scheme, in the fifth step, a gap exists between the flange plate at the bottom of the H-shaped steel section and the top plate of the basement in the foundation installation area of the building elevator, and high-strength grouting materials or structural glue are used for plugging the gap.
According to the scheme, in the seventh step, when the steel bars of the elevator foundation are bound and constructed, the steel bars used by the foundation part can be fixed with the web plate and the flange plate of the H-shaped steel in a spot welding manner; when concrete is poured, the web plate of the H-shaped steel can be used as a side die.
According to the scheme, in the third step, the section steel support is hinged with the basement structure.
The invention has the beneficial effects that: according to the reinforced basement structure, the foundation of the construction elevator is designed on the profile steel structure, the load of the construction elevator is sequentially transmitted to the basement top plate combined structural member and the vertical structural member by using the profile steel structure, the interference to the installation and construction of the basement is avoided during the use period of the construction elevator, the self bearing capacity of the structure is excavated by combining the characteristics of bonded steel reinforcement and the synergistic stress of the H-shaped steel and the concrete beam plate, and the overall construction efficiency is improved; according to the invention, after the plate surface load is cleaned, the safety protection railing is adopted to enclose the plate surface area, so that no load effect on the plate surface is ensured during the construction period of adhering steel to the bottom of the plate; the cross joints between the profile steels are all in rigid connection, and most of the construction of the rigid connection joints is welding operation, so that the operation is simple and convenient.
Drawings
Fig. 1 is a schematic structural view of a basement in the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
FIG. 3 is a schematic diagram of the distribution of the bottom of the top plate of the basement in the invention.
Fig. 4 is a side view of structural beam bottom bonded steel in accordance with the present invention.
FIG. 5 is a schematic view showing the distribution of three types of steel supports according to the present invention.
FIG. 6 is a schematic plan view of the arrangement of H-section steel for panel surface in the present invention.
Fig. 7 is an enlarged schematic view of the foundation of the elevator of the invention.
FIG. 8 is a schematic view of the connection between the anchor plate and the connecting plate of the support of the steel support.
FIG. 9 is a schematic view showing the connection of the support connecting plate, the anchor bar and the support connecting plate of the profile steel support.
FIG. 10 is a schematic view showing the overall structure of the support of the section steel.
FIG. 11 is a schematic view of the connection of the steel section support and the basement structure.
Fig. 12 is a schematic view of the connection of the C-shaped support and the structural beam in the present invention.
FIG. 13 is a schematic diagram of three connection modes of H-shaped steel and an elevator basic embedded part in the invention.
Wherein: 1. h-shaped steel; 2. adhering steel plates; 3. a type A support; 3.1, supporting seat anchor plates; 3.2, connecting a support seat plate; 3.3, anchor bars; 3.4, high-strength bolts; 3.5, bolt holes; 4. a B-type support; 5. a C-shaped support; 5.1, chemical anchor bolts; 6. auxiliary connecting pieces 6.1 and web connecting plates; 6.2, connecting the upper flange plate; 6.3, connecting a lower flange plate; 7. embedding parts; 8. a basement roof; 9. a structural beam; 10. concrete walls/beams; 11. a U-shaped hoop.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
A construction method of a construction elevator foundation supported on a top plate of a basement comprises the following steps:
step one, cleaning a top plate 8 of a basement: various sundries and storage yards on the surface of the basement top plate 8 are cleaned, the surface is kept to have no additional load, the structural plate cannot deform due to the additional load during the steel bonding construction, and the temporary railing for construction is used for enclosing the surface area of the top plate to be constructed; the basement structure is shown in figures 1 and 2.
In the embodiment, the steel plate 2 with the thickness of 3mm and 5mm is adopted for reinforcement, if the structural beam 9 is arranged right below the construction elevator base position, the structural beam 9 is preferentially reinforced, the strip-shaped steel plate is used for steel adhesion at the bottom of the structural beam 9 along the length direction to improve the bending resistance bearing capacity of the structural beam 9, U-shaped hoops 11 are arranged in L/4 span ranges at two ends of the structural beam 9 to improve the shearing resistance bearing capacity of the structural beam 9, the steel adhesion at the bottom surface of the top plate 8 of the basement mainly relates to the range below the elevator base position, and the specific steel adhesion density is determined according to actual calculation;
step three, manufacturing and installing a profile steel support for constructing a stress structure of the elevator foundation, as shown in fig. 5: processing the steel support in a steel structure processing workshop in a factory or a construction site, and carrying the steel support to the area where the construction elevator is located by a forklift; installing a profile steel support (hinged connection) according to the installation position of the foundation stress structure of the construction elevator;
step four, installing a construction elevator foundation stress structure on the basement top plate 8, wherein the construction elevator foundation installation area is positioned on the construction elevator stress structure; construction elevator basis stress structure passes through shaped steel support and transmits power to basement roof 8 and vertical stress structure, as shown in fig. 5 and fig. 6: selecting four H-shaped steels 1, wherein the height of the H-shaped steel 1 is larger than the thickness of a foundation of the construction elevator; mounting the end heads of the H-shaped steel 1 on a section steel support, wherein the section steel support is hinged with a basement structure through a corresponding structure, and the four H-shaped steel 1 are integrally arranged on a basement top plate 8 in a shape of Chinese character jing; the cross joint between the two H-shaped steels 1 is a rigid connection method, and most of the construction of the rigid connection joint is welding operation; an area (namely a well-shaped middle area) formed by enclosing four H-shaped steel 1 is an installation area for constructing an elevator foundation; the H-shaped steel 1 can be transported by a forklift;
step five, sealing treatment of a construction elevator foundation installation area: a gap exists between a flange plate at the bottom of the H-shaped steel 1 and a top plate 8 of the basement in the foundation installation area of the construction elevator, the gap is plugged by adopting high-strength grouting material, so that the cooperative stress of the H-shaped steel 1 and a concrete structure is improved, and the next construction can be carried out after the grouting material is solidified; in the invention, the high-strength grouting material can also be replaced by structural adhesive;
step six, embedding a foundation embedded part 7 of the construction elevator: pre-burying a construction elevator foundation embedded part 7 in an installation area, wherein the construction elevator foundation embedded part 7 can be welded and fixed with H-shaped steel 1 by utilizing angle steel, as shown in figure 7, an auxiliary connecting piece is arranged at the end part of the H-shaped steel 1, and the auxiliary connecting piece is wrapped by a web plate connecting plate 6.1, an upper flange connecting plate 6.2 and a lower flange connecting plate 6.3; the web connecting plate 6.1 is positioned between the upper flange connecting plate 6.2 and the lower flange connecting plate 6.3, and the construction elevator foundation embedded part 7 is welded and fixed with the web connecting plate 6.1;
step seven, erecting a template and distributing ribs in the installation area, and then pouring concrete to form a construction elevator foundation, as shown in fig. 5: when binding construction elevator foundation steel bars, the steel bars used by the foundation part can be fixed with the web plate and the flange plate of the H-shaped steel 1 in a spot welding manner; when concrete is poured, the web plate of the H-shaped steel 1 can be used as a side mold;
step eight, installation of the construction elevator: according to the installation requirements of the construction elevator, elevator structures such as an elevator standard knot, a buffer device and a lift car are installed on the foundation of the construction elevator.
Preferably, in the third step, the profile steel support is divided into an A-type support, a B-type support and a C-type support, and the three profile steel supports are hinged with the basement structure, so that the shearing force of the lower end part of the H-shaped steel 1 is transferred to a vertical structural member of the basement; specifically, the A-type support is used for hinging the H-shaped steel 1 with the structural beam 9, the B-type support is used for hinging the H-shaped steel 1 with the steel column, and the C-type support is used for hinging the H-shaped steel 1 with the structural beam 9 (connected through a chemical anchor bolt). As shown in fig. 8-10, each steel support is composed of a support anchor plate 3.1, a support connecting plate 3.2, an anchor bar 3.3 and a high-strength bolt 3.4, the support anchor plate 3.1 is connected with the end part of the H-shaped steel 1, the support connecting plate 3.2 is connected with the support anchor plate 3.3, and the connection mode is double-sided fillet weld; a high-strength bolt hole 3.5 matched with the high-strength bolt 3.4 is formed in the support connecting plate 3.2, the hole is a strip-shaped hole, only the vertical translational freedom degree of the high-strength bolt 3.4 is restricted, and the horizontal translational freedom degree is not restricted; the anchor bars 3.3 are arranged on the outer side surface of the support anchor plate 3.1 (the connection mode is perforation plug welding), and the anchor bars 3.3 are inserted into the basement structure and are used for being connected with the basement structure, as shown in fig. 11. The anchor bars 3.3 of the C-shaped support are inserted into the structural beam 9 to assist chemical anchor connection, as shown in fig. 12.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, the scope of which is defined by the claims. Various modifications and equivalents may be made thereto by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (8)
1. A construction method of a construction elevator foundation supported on a top plate of a basement is characterized by comprising the following steps:
firstly, cleaning a top plate of a basement;
secondly, reinforcing the basement structure;
step three, manufacturing and installing a profile steel support for constructing a stress structure of the elevator foundation;
step four, installing a construction elevator foundation stress structure on the top plate of the basement, wherein the construction elevator foundation installation area is positioned on the stress structure;
step five, sealing the installation area of the construction elevator foundation;
step six, pre-embedding a foundation embedded part of the construction elevator;
step seven, erecting a template and arranging ribs in the installation area, and then pouring concrete to form a construction elevator foundation;
and step eight, installing the construction elevator.
2. The method for constructing the foundation of the construction elevator supported on the top plate of the basement as claimed in claim 1, wherein in the fourth step, the stress structure comprises four H-shaped steels, the ends of the H-shaped steels are installed on the steel supports, and the four H-shaped steels are integrally arranged on the top plate of the basement in a cross shape; the area enclosed by the four H-shaped steels 1 is an installation area of a construction elevator foundation.
3. The method for constructing the foundation of the construction elevator supported by the top plate of the basement as claimed in claim 1, wherein in the first step, the sundries and the yard on the top plate surface of the basement are cleaned, the plate surface is kept free from additional load, the structural plate is prevented from deforming due to the additional load during the construction of the sticky steel, and the temporary railing for construction is used for enclosing the plate surface area of the top plate to be constructed.
4. The method for constructing the foundation of the construction elevator supported by the top plate of the basement as claimed in claim 1, wherein in the second step, the bottom surface of the top plate of the basement is reinforced by a steel sticky plate; and simultaneously, carrying out bonded steel reinforcement on the structural beam bottom and the support beam surface.
5. The method for constructing the foundation of the construction elevator supported by the top plate of the basement as claimed in claim 1, wherein in the second step, if the construction elevator has the structural beam right under the foundation, the structural beam is preferentially reinforced, the structural beam bottom is bonded with steel by using the strip steel plate along the length direction, and the two ends L/4 of the structural beam span the range of the U-shaped hoop.
6. The method for constructing the foundation of the construction elevator supported by the top plate of the basement as claimed in claim 2, wherein in the fifth step, a gap is formed between the flange plate at the bottom of the H-shaped steel section enclosing the installation area of the foundation of the construction elevator and the top plate of the basement, and high-strength grouting materials or structural glue are used for plugging the gap.
7. The construction method of the foundation of the construction elevator supported on the top plate of the basement as claimed in claim 2, wherein in the seventh step, when the steel bars of the construction elevator foundation are bound, the steel bars of the foundation part can be fixed with the web plate and the flange plate of the H-shaped steel by spot welding; when concrete is poured, the web plate of the H-shaped steel can be used as a side die.
8. The method for constructing the foundation of the construction elevator supported on the top plate of the basement as claimed in claim 2, wherein the steel section supports are connected with the basement structure in the third step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010161243.9A CN111411643A (en) | 2020-03-10 | 2020-03-10 | Construction method of construction elevator foundation supported on basement top plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010161243.9A CN111411643A (en) | 2020-03-10 | 2020-03-10 | Construction method of construction elevator foundation supported on basement top plate |
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| CN111411643A true CN111411643A (en) | 2020-07-14 |
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| CN202010161243.9A Pending CN111411643A (en) | 2020-03-10 | 2020-03-10 | Construction method of construction elevator foundation supported on basement top plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827343A (en) * | 2020-07-28 | 2020-10-27 | 河北冀科工程项目管理有限公司 | Construction method for deepening four-wall support of existing building elevator foundation |
| CN113897999A (en) * | 2021-11-03 | 2022-01-07 | 中建四局建设发展有限公司 | Construction method for constructing elevator foundation structure on subway upper cover project |
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| CN102561392A (en) * | 2012-03-06 | 2012-07-11 | 中天建设集团有限公司 | Structure for supporting construction elevator foundation on basement top plate and construction method thereof |
| CN106703073A (en) * | 2016-12-30 | 2017-05-24 | 中国建筑第八工程局有限公司 | Supporting-free steel beam foundation of super-high-rise construction elevator and construction method of supporting-free steel beam foundation |
| CN108301638A (en) * | 2018-03-19 | 2018-07-20 | 中国五冶集团有限公司 | Construction elevator basement roof shape steel support ruggedized construction and method |
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2020
- 2020-03-10 CN CN202010161243.9A patent/CN111411643A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102561392A (en) * | 2012-03-06 | 2012-07-11 | 中天建设集团有限公司 | Structure for supporting construction elevator foundation on basement top plate and construction method thereof |
| CN106703073A (en) * | 2016-12-30 | 2017-05-24 | 中国建筑第八工程局有限公司 | Supporting-free steel beam foundation of super-high-rise construction elevator and construction method of supporting-free steel beam foundation |
| CN108301638A (en) * | 2018-03-19 | 2018-07-20 | 中国五冶集团有限公司 | Construction elevator basement roof shape steel support ruggedized construction and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827343A (en) * | 2020-07-28 | 2020-10-27 | 河北冀科工程项目管理有限公司 | Construction method for deepening four-wall support of existing building elevator foundation |
| CN113897999A (en) * | 2021-11-03 | 2022-01-07 | 中建四局建设发展有限公司 | Construction method for constructing elevator foundation structure on subway upper cover project |
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Application publication date: 20200714 |