CN112538862A - Construction elevator foundation and construction method thereof - Google Patents
Construction elevator foundation and construction method thereof Download PDFInfo
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- CN112538862A CN112538862A CN202110022896.3A CN202110022896A CN112538862A CN 112538862 A CN112538862 A CN 112538862A CN 202110022896 A CN202110022896 A CN 202110022896A CN 112538862 A CN112538862 A CN 112538862A
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- foundation
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- elevator
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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
Abstract
The invention discloses a construction elevator foundation and a construction method thereof, and the construction elevator foundation comprises a foundation trench or a basement post-pouring belt surrounding the outer side of the basement of a building structure and a construction elevator, wherein the construction elevator is arranged on the outer side of the basement of the building structure, a construction elevator base is arranged on a steel structure foundation arranged above the foundation trench or the basement post-pouring belt, the steel structure foundation comprises a supporting beam, the supporting beam is arranged on a hardened natural terrace crossing the foundation trench or a basement top plate crossing the basement post-pouring belt on the outer side of the basement of the building structure, a plurality of profile steel foundation main beams are fixed on the outer wall of the basement of the building structure and the supporting beam at intervals in parallel, and a plurality of profile steel foundation secondary beams are arranged in a way of crossing at an angle of 90. The steel structure foundation can be arranged on the foundation trench or the post-cast strip in a spanning mode, the concrete structure foundation does not need to be arranged in the foundation trench or the post-cast strip, the phenomenon that the concrete structure foundation cannot be reused after being used is avoided, and normal construction procedures are alternated.
Description
Technical Field
The invention belongs to the field of buildings, and relates to a construction elevator foundation and a construction method thereof.
Background
In the current building construction, a construction elevator is a common vertical transportation device for building construction, and the arrangement position of the construction elevator is at the position of a post-pouring zone or the position of a backfill soil part of a group building basement.
The quality of the foundation trench backfill soil is difficult to ensure; the post-cast strip is generally a settled post-cast strip, and the post-cast strip is cast 28 days after the structures on both sides are capped, so that the normal construction process alternation cannot be met; the backfilling part cannot be backfilled completely due to the influence of the construction process, the construction unit and the backfilling amount, so that the construction process cannot be normally alternated. The time for inserting other project items such as secondary structure, decoration and fitment is restricted, and the production progress is seriously influenced.
At present, the common method for arranging the construction elevator is as follows: is arranged on backfill soil or a top plate of a basement. The arrangement in the backfill soil may cause uneven settlement of a construction elevator foundation due to the problems of the quality of the backfill soil and the load of a construction elevator, thereby causing engineering accidents; when the underground chamber roof slab is arranged on the basement roof slab, the construction lifter load problem causes the cracking of the underground chamber roof slab structure to cause quality accidents. Moreover, the construction elevator foundation is generally of a reinforced concrete structure, and the structure cannot be reused after being used once, so that the cost is high.
Disclosure of Invention
The invention aims to provide a construction elevator foundation and a construction method thereof. Simple structure, convenient construction, and no need of arranging concrete structure foundation in foundation trench or post-cast strip by using steel structure foundation
Can be used in a turnover way after use, and saves the cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a construction elevator foundation comprises a foundation trench or a basement post-pouring belt surrounding the outer side of the basement outer wall of a building structure and a construction elevator, wherein the construction elevator is arranged on the outer side of the basement outer wall of the building structure, the construction elevator comprises an elevator derrick and a suspension cage shaft and a counterweight shaft which are respectively arranged on two sides of the elevator derrick, the construction elevator is arranged on a steel structure foundation arranged above the foundation trench or the basement post-pouring belt, the steel structure foundation comprises a supporting beam, the supporting beam is arranged on a hardened natural terrace crossing the foundation trench on the outer side of the basement outer wall of the building structure or on a basement top plate crossing the basement post-pouring belt of the basement, the steel structure foundation also comprises a plurality of profile steel foundation main beams, the plurality of profile steel foundation main beams cross the basement outer wall and the supporting beam of the building structure at intervals, are parallel and connected and fixed with the basement outer wall and the supporting beam, and are crosswise provided with a plurality of, the construction elevator base is fixed on a steel platform formed by the profile steel foundation main beam and the profile steel foundation secondary beam.
The scheme is further as follows: a fixed slope is built between the foundation trench and the hardened natural terrace, the supporting beam is a concrete supporting beam, and the distance between the concrete supporting beam and the upper edge of the fixed slope is at least 1.5 m.
The scheme is further as follows: many shaped steel basis secondary beam are including being used for buildding the shaped steel basis secondary beam that falls to the ground transportation and connect material platform frame and being used for supporting construction elevator's shaped steel basis secondary beam.
The scheme is further as follows: the profile steel basic girder has four, on the many profile steel basic secondary beams that lift well frame fixing base set up between two middle profile steel basic girders, many profile steel basic secondary beams separate two middle profile steel basic girder extensions and are connected with two outside profile steel basic girders respectively, cage pit shaft and counter weight pit shaft fixing base are on a middle profile steel basic girder and profile steel basic secondary beam respectively.
The scheme is further as follows: the fixed connection of the elevator derrick, the suspension cage shaft and the counterweight shaft with the main beam of the profile steel foundation or with the secondary beam of the profile steel foundation is respectively the fixed connection of the main beam of the profile steel foundation or the secondary beam of the profile steel foundation sleeved by the U-shaped bolt.
The scheme is further as follows: the U-shaped bolt is fixedly connected with the elevator derrick, the suspension cage shaft and the counterweight shaft through the opposite angles of the crossed sleeved steel foundation main beam or the steel foundation secondary beam.
A construction method based on the construction elevator foundation comprises the steps of firstly crossing a foundation trench to pour a concrete supporting beam on a hardened natural terrace, if the foundation trench is a basement post-pouring zone, crossing the basement post-pouring zone to select a basement top plate, manufacturing the supporting beam on the top plate, enabling the upper end face of the concrete supporting beam to be flush with the end face of the outer wall of a building structure basement, building a fixed slope with the inclination not larger than 45 degrees between the foundation trench and the hardened natural terrace by using concrete mortar if the foundation trench is the foundation trench, enabling the distance between the poured concrete supporting beam and the upper edge of the fixed slope to be at least 1.5m, driving positioning steel bars on the selected basement top plate, erecting a formwork to pour the concrete supporting beam, then laying a profile steel foundation main beam and a profile steel foundation secondary beam, and fixedly connecting the profile steel foundation main beam with the outer wall of the building structure basement and the concrete supporting beam respectively through expansion bolts, the foundation secondary beam sections are connected between the profile steel main beams through bolts or welding and are flush with the upper end faces of the profile steel main beams, and then the construction lifter is installed after rust removal and rust prevention treatment.
The scheme is further as follows: the profile steel basic girder has four, lift well frame fixed connection seat is on the many profile steel basic secondary beam that set up between two middle profile steel basic girders, and a plurality of profile steel basic secondary beams separate two middle profile steel basic girder extensions and are connected with two outside profile steel basic girders respectively, cage pit shaft and counter weight pit shaft fixed connection seat are on a middle profile steel basic girder and profile steel basic secondary beam respectively.
The scheme is further as follows: the fixed connection of the elevator derrick, the suspension cage shaft and the counterweight shaft with the main beam of the profile steel foundation or with the secondary beam of the profile steel foundation is respectively the fixed connection of the main beam of the profile steel foundation or the secondary beam of the profile steel foundation sleeved by the U-shaped bolt.
The scheme is further as follows: the U-shaped bolt adopts a cross sleeved type steel foundation main beam or a steel foundation secondary beam, and the opposite angles of the main beam or the secondary beam are connected and fixed with the lift derrick, the suspension cage shaft and the counterweight shaft.
The invention has the beneficial effects that: the structure is simple, the steel structure foundation can be arranged on the foundation trench or the post-cast strip in a spanning mode, the elevator is built before the construction of the foundation trench or the post-cast strip, favorable conditions are created for the insertion of later construction procedures, the concrete structure foundation does not need to be arranged in the foundation trench or the post-cast strip, the situation that the elevator cannot be reused after being detached after being used is avoided, the insertion of normal construction procedures is met, the elevator can be recycled after being used, and the cost is saved.
The invention is described in detail below with reference to the figures and examples.
Drawings
FIG. 1 is a schematic view of a foundation section structure with a foundation trench on the outer side of the basement outer wall;
FIG. 2 is a schematic structural view of a foundation section with a post-cast strip on the outer side of the basement outer wall;
FIG. 3 is a schematic diagram of the basic plan structure of the present invention;
fig. 4 is a schematic view of the fixing structure of the U-bolt of the derrick of the elevator of the present invention.
Detailed Description
Example 1:
a construction elevator foundation, as shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the construction elevator foundation includes a post-cast strip 901 surrounding a foundation trench 2 or a basement 9 outside a basement outer wall 1 of a building structure, and a construction elevator 3, the construction elevator 3 is disposed outside the basement outer wall 1 of the building structure for building construction, the construction elevator 3 includes an elevator shaft frame 301 and a cage shaft 302 and a counterweight shaft 303 disposed on both sides of the elevator shaft frame, respectively, wherein the construction elevator is seated on a steel structure foundation disposed above the foundation trench or the post-cast strip, the steel structure foundation includes a support beam 4 disposed outside the basement outer wall of the building structure on a hardened natural terrace 5 crossing the foundation trench or on a basement top plate 902 crossing the basement post-cast strip 901, if a support column is not exactly provided at a lower end 902 of the basement top plate of the basement post-cast strip provided with the support beam 4, a reinforcing support 903 needs to be temporarily provided. A supporting beam arranged on the hardened natural terrace 5 is a concrete supporting beam, reinforcing steel bars are embedded in the concrete supporting beam, the supporting beam on the basement top plate 802 can be a profile steel supporting beam or a concrete supporting beam, a plurality of profile steel basic main beams 6 are fixed on the basement outer wall 1 and the soil supporting beam 4 at intervals and in parallel, the plurality of profile steel basic main beams are fixedly connected with the basement outer wall and the supporting beam, a plurality of profile steel basic secondary beams 7 are crosswise arranged at an angle of 90 degrees with the profile steel basic main beams, the depth G of the profile steel basic main beams 6 extending into the basement outer wall of the building structure is at least 300mm, and the construction elevator base is fixed on a steel platform formed by the profile steel basic main beams and the profile steel basic secondary beams; two I-shaped steel foundations 10 serving as steel foundation secondary beams for landing transportation and material receiving platform frames are arranged on a section steel foundation main beam 6 between a construction elevator and a basement outer wall at intervals and can be simplified according to construction conditions.
Wherein: as a foundation trench, in order to prevent collapse, a fixed slope 201 with the inclination not larger than 45 degrees a is established between the foundation trench or a post-cast strip and a hardened natural terrace by concrete mortar, the thickness of the mortar is not smaller than 50mm, and the distance D between the concrete support beam and the upper edge of the fixed slope is at least 1.5 m.
The shaped steel basic girder 6 and the shaped steel basic secondary beam 7 in the embodiment are I-shaped steel girders of two kinds of different specifications, and the segmentation of many shaped steel basic secondary beams 7 is through bolt or welded connection between the shaped steel basic girder with shaped steel basic girder up end parallel and level, many shaped steel basic secondary beams are including setting up the shaped steel basic secondary beam that is used for building on the shaped steel basic girder between construction elevator and building structure basement outer wall and falls to the ground the transportation and connect material platform frame and be used for supporting the shaped steel basic secondary beam of construction elevator.
In this embodiment: the profile steel basis girder has four, on 3 profile steel basis secondary beams that lift shaft frame fixing base set up between two middle profile steel basis girders, 3 profile steel basis secondary beams separate two middle profile steel basis girder extensions and are connected with two outside profile steel basis girders respectively, cage pit shaft and counter weight pit shaft difference fixed connection seat are on a middle profile steel basis girder and profile steel basis secondary beam.
In the examples: the fixed connection of the elevator derrick, the suspension cage shaft and the counterweight shaft with the profile steel foundation main beam or the profile steel foundation secondary beam is respectively the fixed connection of the U-shaped bolt sleeved on the profile steel foundation main beam or the profile steel foundation secondary beam, the U-shaped bolt is fixedly connected with the elevator derrick, the suspension cage shaft and the counterweight shaft by sleeving the opposite angles of the profile steel foundation main beam or the profile steel foundation secondary beam in a crossed manner, the connecting structure prevents the U-shaped bolt from slipping, the connecting structure of the elevator derrick is illustrated in figure 4, the profile steel foundation secondary beam is sleeved on the opposite angles of the lower side of the elevator derrick by the U-shaped bolt 8 to connect and fix the elevator derrick, and the suspension cage shaft and the counterweight shaft are also fixed in the same way.
Example 2:
a construction method based on the construction elevator foundation in embodiment 1 is characterized in that the content of embodiment 1 is applied to the embodiment, if the foundation trench is a foundation trench, a supporting beam is firstly made by crossing the foundation trench and selecting a basement top plate on a hardened natural terrace, if the foundation trench is a basement post-cast strip, the supporting beam is made on the top plate by crossing the basement post-cast strip, the upper end surface of the supporting beam is flush with the end surface of the basement outer wall of the building structure, if the foundation trench is a foundation trench, a fixed slope with the inclination not more than 45 degrees is built between the foundation trench and the hardened natural terrace by concrete mortar, the thickness of the fixed slope mortar is not less than 50mm, the distance between the poured concrete supporting beam and the upper edge of the fixed slope is at least 1.5m, if the basement post-cast strip is a basement, a positioning steel bar is driven into the selected basement top plate, a formwork is poured with the concrete supporting beam, then a section steel foundation and a section steel foundation secondary beam are laid on, the section steel foundation main beam is fixedly connected with the basement outer wall and the concrete supporting beam of the building structure through expansion bolts, the foundation secondary beam is connected between the section steel main beams in a segmented mode through bolts or welded connection and is flush with the upper end face of the section steel main beam, and then the construction lifter is installed after derusting and rust-proof treatment.
Identical to example 1: the profile steel basic girder has four, lift well frame fixed connection seat is on the many profile steel basic secondary beam that set up between two middle profile steel basic girders, and a plurality of profile steel basic secondary beams separate two middle profile steel basic girder extensions and are connected with two outside profile steel basic girders respectively, cage pit shaft and counter weight pit shaft fixed connection seat are on a middle profile steel basic girder and profile steel basic secondary beam respectively. The fixed connection of the elevator derrick, the suspension cage shaft and the counterweight shaft with the section steel foundation main beam or the section steel foundation secondary beam is respectively the fixed connection of the section steel foundation main beam or the section steel foundation secondary beam sleeved by U-shaped bolts, and the U-shaped bolts are used for connecting and fixing the opposite angles of the section steel foundation main beam or the section steel foundation secondary beam with the elevator derrick, the suspension cage shaft and the counterweight shaft in a crossed manner.
The embodiment can be used for building the lifter before construction of the foundation trench or the post-cast strip, creates favorable conditions for insertion of later construction procedures, and can complete construction joints on time under the condition of ensuring construction quality and construction safety. The foundation steel structure can be used in a turnover mode, so that materials are saved, and construction cost is reduced.
Claims (10)
1. A construction elevator foundation comprises a foundation trench or a basement post-pouring belt surrounding the outer side of the basement outer wall of a building structure and a construction elevator, wherein the construction elevator is arranged on the outer side of the basement outer wall of the building structure, the construction elevator comprises an elevator derrick and a suspension cage shaft and a counterweight shaft which are respectively arranged on two sides of the elevator derrick, and the construction elevator is characterized in that the construction elevator is arranged on a steel structure foundation arranged above the foundation trench or the basement post-pouring belt, the steel structure foundation comprises a supporting beam, the supporting beam is arranged on a hardened natural terrace crossing the foundation trench on the outer side of the basement outer wall of the building structure or on a basement top plate crossing the basement post-pouring belt, the steel structure foundation also comprises a plurality of section steel foundation main beams, the plurality of section steel foundation main beams span on the basement outer wall and the supporting beam of the building structure at intervals and are parallel and connected and fixed, and a plurality of profile steel foundation secondary beams are arranged at an angle of 90 degrees with the profile steel foundation main beam in a crossed manner, and the construction lifting machine base falls on a steel platform formed by the profile steel foundation main beam and the profile steel foundation secondary beams to be fixed.
2. A construction elevator foundation as claimed in claim 1 in which a solid slope is established between the foundation trench and the hardened natural terrace, the support beam being a concrete support beam spaced at least 1.5m from the upper edge of the solid slope.
3. The construction elevator foundation of claim 1, wherein the plurality of profile steel foundation sub-beams comprise a profile steel foundation sub-beam for building a floor transportation receiving platform frame and a profile steel foundation sub-beam for supporting the construction elevator.
4. The construction elevator foundation of claim 3, wherein there are four of the steel foundation main beams, the elevator shaft fixing base is provided on a plurality of steel foundation sub-beams provided between the middle two steel foundation main beams, the plurality of steel foundation sub-beams are connected to the outer two steel foundation main beams through the middle two steel foundation main beams, respectively, and the cage shaft and the counterweight shaft are fixed on the middle one steel foundation main beam and the steel foundation sub-beams, respectively.
5. A construction elevator foundation according to claim 1 or 2 or 3 or 4, wherein the fixed connections of the elevator derrick and cage shaft and counterweight shaft to the main section steel foundation beam or to the secondary section steel foundation beam are fixed connections of the main section steel foundation beam or the secondary section steel foundation beam, respectively, by means of U-bolts.
6. The construction elevator foundation of claim 5 wherein said U-bolts are cross-sleeved steel foundation main beams or steel foundation secondary beams secured diagonally to the elevator derrick and cage bores and counterweight bores.
7. A construction method based on the construction elevator foundation of claim 1, wherein if the foundation trench is a foundation trench, a supporting beam is first manufactured on a hardened natural terrace by crossing the foundation trench, if the foundation trench is a basement post-cast strip, a basement top plate is selected by crossing the basement post-cast strip, the supporting beam is manufactured on the top plate, the upper end surface of the supporting beam is flush with the end surface of the basement exterior wall of the building structure, the method is characterized in that if the foundation trench is a foundation trench, a fixed slope is built between the foundation trench and the hardened natural terrace by using concrete mortar, the supporting beam is at least 1.5m away from the upper edge of the fixed slope, if the foundation post-cast strip is a basement, a positioning steel bar is driven into the top plate of the selected basement, a concrete supporting beam is poured into a formwork, then a section steel foundation main beam and a section steel foundation secondary beam are laid, the section steel foundation main beam is respectively fixedly connected with the basement exterior wall and the supporting beam of the building structure by expansion, then the construction lifter is installed after rust removal and rust prevention treatment.
8. The method of claim 7, wherein there are four of the steel foundation main beams, the elevator shaft mounting attachment base is on a plurality of steel foundation sub-beams disposed between the two central steel foundation main beams, the plurality of steel foundation sub-beams are respectively connected to the two outer steel foundation main beams by extending through the two central steel foundation main beams, and the cage well bore and the counterweight well bore are respectively attached to the central steel foundation main beam and the steel foundation sub-beams.
9. The method of claim 7, wherein the fixed connections of the elevator derrick and cage wellbores and counterweight wellbores to the section steel primary beam or the section steel primary beam are fixed connections of the section steel primary beam or the section steel primary beam, respectively, sleeved with the U-bolts.
10. The method of claim 9, wherein the U-bolts are used to connect and fix the main beams of cross-sleeved steel foundation or the secondary beams of steel foundation diagonally with the elevator derrick and cage well bore and the counterweight well bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110022896.3A CN112538862A (en) | 2021-01-08 | 2021-01-08 | Construction elevator foundation and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110022896.3A CN112538862A (en) | 2021-01-08 | 2021-01-08 | Construction elevator foundation and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112538862A true CN112538862A (en) | 2021-03-23 |
Family
ID=75017182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110022896.3A Pending CN112538862A (en) | 2021-01-08 | 2021-01-08 | Construction elevator foundation and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112538862A (en) |
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2021
- 2021-01-08 CN CN202110022896.3A patent/CN112538862A/en active Pending
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