CN214143788U - Tower crane foundation on foundation pit slope - Google Patents
Tower crane foundation on foundation pit slope Download PDFInfo
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- CN214143788U CN214143788U CN202022191763.2U CN202022191763U CN214143788U CN 214143788 U CN214143788 U CN 214143788U CN 202022191763 U CN202022191763 U CN 202022191763U CN 214143788 U CN214143788 U CN 214143788U
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- foundation
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Abstract
The application provides a tower crane foundation that is located on foundation ditch side slope, tower crane foundation that is located on foundation ditch side slope includes: the foundation bolt, the top plate, the second layer of column, the interlayer plate, the first layer of column and the plate foundation; the plate type foundation is positioned on the bottom surface of a foundation pit of the main building, and the first-layer column, the interlayer plate, the second-layer column and the top plate are sequentially arranged on the plate type foundation; and the foundation bolts are pre-buried in the second layer of columns and the top plate and used for fixing a tower crane. In the tower crane foundation that is located foundation ditch slope that this application provided, through connecting plate post-shear wall structure in order to form the tower crane foundation on the basis of plate foundation, and will the tower crane foundation arranges on main building foundation ditch bottom surface, not only the construction is simple and convenient but also safe economy more.
Description
Technical Field
The utility model relates to a construction technical field, in particular to tower crane foundation who is located foundation ditch slope.
Background
Along with the rapid development of the urbanization in China, the urban land is increasingly tense, the development cost is relatively high in the busy sections of the city, and the developed floors are basically high-rise buildings adopting foundation pits. Due to the existence of the deep foundation pit, the design of the tower crane foundation is particularly important.
The piling requirement at the pit edge is generally smaller, so that heavy objects are not allowed to be piled at the pit edge, namely large mechanical equipment (a tower crane, a large truck crane and the like) is strictly forbidden to be directly arranged on the soil body at the pit edge. Therefore, the existing construction unit usually drives the tower crane foundation pile outside the foundation pit slope, and then installs the tower crane on the tower crane foundation pile. However, when the tower crane is arranged outside the foundation pit side slope, the tower crane is usually far away from the building construction site, and the problems that the tower crane is too long to be attached to a wall and inconvenient to install and dismantle can occur. If the tower crane foundation pile is close to a building, the tower crane foundation pile is not easy to construct, and the foundation construction difficulty is high. And if the tower crane foundation pile is selected to be drilled on the foundation pit side slope, the foundation pit support is greatly influenced, the defects that the pile load is too large and the support requirement is not met are caused, and in addition, the tower crane foundation pile is drilled on the foundation pit side slope, the cost is high, and the construction period is long.
Therefore, a plurality of problems need to be solved in the construction of the tower crane foundation at the side slope of the foundation pit.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tower crane foundation who is located foundation ditch side slope to it is big to have the construction degree of difficulty, economic safety's problem inadequately to solve the current tower crane foundation who is located foundation ditch side slope department.
In order to solve the technical problem, the utility model provides a be located tower crane foundation on foundation ditch side slope, tower crane foundation on being located foundation ditch side slope includes: the foundation bolt, the top plate, the second layer of column, the interlayer plate, the first layer of column and the plate foundation;
the plate type foundation is positioned on the bottom surface of a foundation pit of the main building, and the first-layer column, the interlayer plate, the second-layer column and the top plate are sequentially arranged on the plate type foundation and are connected with the plate type foundation into a whole;
and the foundation bolts are pre-buried in the second layer of columns and the top plate and used for fixing a tower crane.
Optionally, be located tower crane foundation on the foundation ditch slope in, be provided with board-like basic reinforcing bar and drag hook in the board-like basis, the drag hook connect in between the board-like basic reinforcing bar.
Optionally, be located tower crane foundation on foundation ditch slope in, first layer post with all be provided with in the second floor post and indulge muscle and stirrup in the post, stirrup in the post with indulge muscle fixed connection in the post.
It is optional be located tower crane foundation on the foundation ditch slope in, be formed with first layer wall on the first layer post, be formed with second layer wall on the second layer post, first layer wall with all be provided with in the second layer wall in horizontal reinforcing bar in the wall, the wall in vertical reinforcing bar and the wall in the frame founds the muscle, in the wall vertical reinforcing bar with plate-type foundation links to each other, in the wall horizontal reinforcing bar with in the wall frame found the muscle all with vertical reinforcing bar fixed connection in the wall.
Optionally, be located tower crane foundation on the foundation ditch slope in, be provided with the interlaminar plate reinforcing bar in the interlaminar plate, be provided with the roof reinforcing bar in the roof, the interlaminar plate reinforcing bar the roof reinforcing bar with plate type foundation reinforcing bar is double-deck two-way reinforcing bar.
Optionally, be located tower crane foundation on the foundation ditch slope in, the top elevation of roof is unanimous with the top elevation of underground garage roof.
Optionally, be located tower crane foundation on foundation ditch slope in, still include: the tower crane foundation bed course, the tower crane foundation bed course is located plate-type basis with between the main building foundation ditch bottom surface, just the bottom surface of tower crane foundation bed course flushes with the bottom surface of main building foundation bed course, main building foundation bed course set up in main building basis with between the main building foundation ditch bottom surface.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
1. the utility model forms the tower crane foundation by constructing the plate column-shear wall structure on the plate foundation, which is not only simple and convenient to construct, but also more economic;
2. the utility model improves the stability of the slab-column shear wall structure and reduces the difficulty of construction by arranging the interlayer plate in the slab-column shear wall structure;
3. the construction of the tower crane foundation of the utility model does not relate to the fields with stronger specialty such as steel structure, and is only the construction of the conventional reinforced concrete slab column-shear wall, and the construction is simple;
4. the tower crane foundation of the utility model not only considers the safe distance of the main building foundation pit side slope, but also adopts the proper wall-attached distance, and the safety factor is higher;
5. the utility model discloses a tower crane foundation all does not have with underground garage and main building and is connected, does not involve waterproof problem, does not influence the atress of main building and underground garage, accomplishes the main building and fills the back just to bury in the backfill around the region, does not influence dismantling of tower crane and the use of main building basement and underground garage from now on.
Drawings
FIG. 1 is a schematic sectional view of a tower crane foundation according to an embodiment of the present invention;
fig. 2 is a schematic plan view of a plate foundation according to an embodiment of the present invention;
FIG. 3 is a reinforcement schematic diagram of a tower crane foundation according to an embodiment of the present invention;
FIG. 4 is a cross-sectional view taken along line A-A' of FIG. 3;
fig. 5 is a cross-sectional view taken along line B-B' of fig. 3.
Reference numerals
1 Tower crane
2 Foundation bolt
3 Top board
4 second layer of columns
5 interlayer plate
6 first layer of columns
7 board type foundation
8 tower crane foundation cushion
9 main building foundation cushion layer
10 main building foundation
11 main building foundation pit bottom surface
12 underground garage foundation pit bottom surface
13 natural terrace surface
14 plate type foundation reinforcing steel bar
15 draw hook
Horizontal steel bar in 16 walls
17 vertical steel bar in wall
18-wall middle frame stud
19 interlayer plate steel bar
20 roof reinforcing steel bar
21 first storey wall
22 second storey wall
23 column middle longitudinal bar
24 column middle stirrup
25 sloping from the bottom surface of the underground garage foundation pit to the bottom surface of the main building foundation pit
26 slope from natural terrace surface to underground garage foundation pit bottom surface
27 underground garage sideline
Detailed Description
The tower crane foundation on the foundation pit slope provided by the utility model is further described in detail with reference to the accompanying drawings and specific embodiments.
Please refer to fig. 1 and fig. 2 in combination, which are schematic structural diagrams of a tower crane foundation located on a side slope of a foundation pit according to an embodiment of the present invention. As shown in fig. 1 and fig. 2, the tower crane foundation on the foundation pit slope includes: the roof 3, the second storey column 4, the interlayer plate 5, the first storey column 6 and the plate foundation 7; the plate type foundation 7 is positioned on the bottom surface 11 of a foundation pit of a main building, and the first-layer column 6, the interlayer plate 5, the second-layer column 4 and the top plate 3 are sequentially arranged on the plate type foundation 7 and are connected with the plate type foundation 7 into a whole; the foundation bolts 2 are pre-buried in the second-layer column 4 and the top plate 3 and used for fixing the tower crane 1.
Specifically, a slope 26 from the natural terrace surface 13 to the underground garage foundation pit bottom surface 12, a slope 25 from the underground garage foundation pit bottom surface 12 to the main building foundation pit bottom surface 11, and the like are formed between the natural terrace surface 13 and the main building foundation pit bottom surface 11.
Be provided with main building basis 10 and board-like basis 7 on the main building foundation ditch bottom surface 11, main building basis 10 with be provided with main building foundation mat layer 9 between the main building foundation ditch bottom surface 11, board-like basis 7 with be provided with tower crane foundation mat layer 8 between the main building foundation ditch bottom surface 11, the bottom surface of main building foundation mat layer 9 with tower crane foundation mat layer 8's bottom surface flushes.
The tower crane foundation that is located on foundation ditch side slope includes: roof 3, second floor post 4, interlayer 5, first floor post 6 and plate foundation 7, first floor post 6, interlayer 5, second floor post 4 and roof 3 set gradually in on the plate foundation 7, and with plate foundation 7 links as an organic whole.
Please refer to fig. 3 to fig. 5, which are schematic diagrams illustrating reinforcement of a tower crane foundation according to an embodiment of the present invention. As shown in fig. 3 to 5, slab foundation reinforcing steel bars 14 and pulling hooks 15 are arranged in the slab foundation 7, the pulling hooks 15 are connected between the slab foundation reinforcing steel bars 14, column middle longitudinal bars 23 and column middle stirrups 24 are arranged in the first layer of column 6 and the second layer of column 4, the column middle stirrups 24 are fixedly connected with the column middle longitudinal bars 23, a first layer of wall 21 is formed on the first layer of column 6, a second layer of wall 22 is formed on the second layer of column, wall middle horizontal reinforcing steel bars 16, wall middle vertical reinforcing steel bars 17 and wall middle vertical reinforcing steel bars 18 are arranged in the first layer of wall 21 and the second layer of wall 22, the wall middle vertical reinforcing steel bars 17 are connected with the slab foundation 7, the wall middle horizontal reinforcing steel bars 16 and the wall middle vertical reinforcing steel bars 18 are connected with the wall middle vertical reinforcing steel bars 17, slab reinforcing steel bars 19 are arranged in the slab foundation 5, and top slab reinforcing steel bars 20 are arranged in the top slab 3, the interlayer plate reinforcing steel bars 19 and the top plate reinforcing steel bars 20 comprise transverse bars and longitudinal bars, and the transverse bars and the longitudinal bars are arranged in a cross-fixed mode.
In this embodiment, plate foundation steel bar 14, interlayer slab steel bar 19 and roof reinforcing bar 20 are double-deck two-way reinforcing bar, all include horizontal muscle and indulge the muscle promptly, horizontal muscle and indulge muscle cross arrangement and fixed connection.
In this embodiment, the second layer of columns 4, the first layer of columns 6, the first layer of walls 21 and the second layer of walls 22 together form a slab column-shear wall structure, and the slab column-shear wall structure is effectively connected with the slab foundation 7 through vertical steel bars 17 in the wall.
In this embodiment, plate foundation 7 sets up outside underground garage sideline 27, promptly the tower crane basis arranges outside underground garage. Considering that the tower crane foundation is arranged outside the underground garage, the region outside the underground garage needs to be backfilled to the height of the top plate of the underground garage, so that the layer height of the plate column-shear wall structure is high, the length-to-thickness ratio of the column is too large, and instability damage is easy to occur, and therefore the interlayer plate 5 is arranged in the plate column-shear wall structure to improve the stability of the plate column-shear wall structure.
In this embodiment, the height of the top plate 3 is the same as the height of the top plate (not shown) of the underground garage. In other embodiments, the ceiling height of the roof 3 may be higher than the ceiling height of the underground garage roof. Thus, the tower crane foundation 100 is not buried in the backfill soil during backfilling.
In this embodiment, the tower crane foundation is independent tower crane foundation, and is not connected with underground garage and main building, does not involve waterproof problem, does not also influence the atress of main building and underground garage, just is buried in the backfill soil after accomplishing the regional backfill around the main building, does not influence the demolition of tower crane 1 and the use of main building basement and underground garage in future.
Correspondingly, the embodiment also provides a construction method of the tower crane foundation on the foundation pit side slope. With continuing reference to fig. 1 to 5, the construction method of the tower crane foundation on the foundation pit slope includes:
firstly, excavating from a natural terrace surface 13 to an underground garage foundation pit bottom surface 12 to form a slope 26 from the natural terrace surface 13 to the underground garage foundation pit bottom surface 12;
step two, determining the position of a plate type foundation 7, and excavating outwards from the position of the plate type foundation 7 to form a slope 25 from the bottom surface 12 of the underground garage foundation pit to the bottom surface 11 of the main building foundation pit;
step three, constructing the plate foundation 7;
fourthly, binding steel bars of the first-layer column 7, the first-layer wall 21 and the interlayer plate 5, and erecting a formwork, and pouring concrete by taking the first-layer column 7, the first-layer wall 21 and the interlayer plate 5 as a whole;
and fifthly, binding reinforcing steel bars of the second layer of columns 4, the second layer of walls 22 and the top plate 3, and erecting a formwork, and pouring the second layer of columns 4, the second layer of walls 22 and the top plate 3 as a whole.
Specifically, firstly, the natural terrace surface 13 is excavated to the underground garage foundation pit bottom surface 12, and the slope 26 from the natural terrace surface 13 to the underground garage foundation pit bottom surface 12 is formed.
And then, determining the position of the plate type foundation 7, and excavating outwards from the position of the plate type foundation 7 to form a slope 25 from the bottom surface 12 of the underground garage foundation pit to the bottom surface 11 of the main building foundation pit. Wherein the position of the plate type foundation 7 is outside the underground garage sideline 27.
It should be noted that in the case of the closer distance between the slopes 25 and 26, the side effect of the slope on the foundation should be prevented, and the deformation should be monitored.
Then, the construction of the slab foundation 7 is performed. The concrete comprises the steps of steel bar binding and formwork erecting of the plate type foundation 7 and concrete pouring.
And then, binding and formwork of the first-layer column 7, the first-layer wall 21 and the interlayer plate 5 by using steel bars, and pouring concrete on the first-layer column 7, the first-layer wall 21 and the interlayer plate 5 as a whole.
And then, binding and formwork erecting the second layer of columns 4, the second layer of walls 22 and the top plate 3, and pouring the second layer of columns 4, the second layer of walls 22 and the top plate 3 as a whole.
Before the steel bar binding of the top plate 3, after the concrete pouring of the first-layer column 7, the first-layer wall 21 and the interlayer plate 5 as a whole, the method further comprises the following steps: and embedding an anchor bolt 2 in the second layer of column 4, wherein the anchor bolt 2 is used for fixing the tower crane 1. Thereby, the anchor bolts 2 are cast integrally with the second storey columns 4 and the top plate 3. After the tower crane 1 is installed on the tower crane foundation on the foundation pit slope, the horizontal force, the vertical force and the overturning moment of the tower crane 1 are transmitted to the tower crane foundation through the foundation bolts 2.
In this embodiment, tower crane 1 is connected with slab post-shear wall structure through 4 pre-buried rag bolts 2 of group, rag bolt 2 transmits the horizontal force, vertical force and the moment of overturning of tower crane 1 for slab post-shear wall structure, slab post-shear wall structure passes to continuous board formula basis 7 again, by board formula basis 7 passes to the ground again.
The construction methods of the existing tower crane foundation generally have three types. The first method is to install the tower crane after completing the construction of the plate type foundation. Although the method is simple, 3 sections of tower crane standard knots from the plate type foundation surface to the part of the top plate of the underground garage are buried in the backfill soil and are discarded. And the second method is that a shear wall cylinder is manufactured around the plate type foundation to reach the height of a top plate of an underground garage, the plate type foundation and the standard section of the tower crane are wrapped in the shear wall cylinder, and the standard section is dug out after the tower crane is dismantled. And the third is to directly heighten the plate foundation to the height of the top plate of the underground garage. When the tower crane has to be arranged outside the underground garage, the region outside the underground garage needs to be refilled to the bottom plate of the underground garage, and the part from the bottom plate of the underground garage to the top plate of the underground garage also needs to be refilled. The three methods are not convenient for construction and have poor economical efficiency.
In this embodiment, a reinforced concrete slab column-shear wall structure is connected to the slab foundation 7 to form a tower crane foundation. The construction of the tower crane foundation is the construction of a conventional reinforced concrete slab column-shear wall, does not relate to the fields with stronger specialties such as a steel structure and the like, and is very simple and convenient. And a large amount of concrete materials can be saved, the abandonment of 3 sections of tower crane standard sections is avoided, and the tower crane is more economic.
To sum up, the utility model provides an among the tower crane foundation that is located the foundation ditch side slope, through connecting plate post-shear wall structure in order to form the tower crane foundation on the basis of plate-type basis, and will the tower crane foundation arranges on main building foundation ditch bottom surface, not only the construction is simple and convenient but also safe economy more.
The foregoing is a more detailed description of the present application in connection with specific preferred embodiments and it is not intended that the present application be limited to these specific details. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (7)
1. The utility model provides a tower crane foundation who is located foundation ditch slope which characterized in that includes: the foundation bolt, the top plate, the second layer of column, the interlayer plate, the first layer of column and the plate foundation;
the plate type foundation is positioned on the bottom surface of a foundation pit of the main building, and the first-layer column, the interlayer plate, the second-layer column and the top plate are sequentially arranged on the plate type foundation and are connected with the plate type foundation into a whole;
and the foundation bolts are pre-buried in the second layer of columns and the top plate and used for fixing a tower crane.
2. The tower crane foundation on the foundation pit slope according to claim 1, wherein plate foundation reinforcing steel bars and draw hooks are arranged in the plate foundation, and the draw hooks are connected between the plate foundation reinforcing steel bars.
3. The tower crane foundation on the foundation pit slope according to claim 1, wherein a column middle longitudinal rib and a column middle stirrup are arranged in each of the first layer column and the second layer column, and the column middle stirrup is fixedly connected with the column middle longitudinal rib.
4. The tower crane foundation on the foundation pit slope as claimed in claim 1, wherein a first storey wall is formed on the first storey column, a second storey wall is formed on the second storey column, horizontal wall reinforcing steel bars, vertical wall reinforcing steel bars and vertical wall reinforcing steel bars are arranged in the first storey wall and the second storey wall, the vertical wall reinforcing steel bars are connected with the plate foundation, and the horizontal wall reinforcing steel bars and the vertical wall reinforcing steel bars are fixedly connected with the vertical wall reinforcing steel bars.
5. The tower crane foundation on the foundation pit slope according to claim 1, wherein the interlayer plate is provided with interlayer plate reinforcing steel bars, the top plate is provided with top plate reinforcing steel bars, and the interlayer plate reinforcing steel bars, the top plate reinforcing steel bars and the plate foundation reinforcing steel bars are double-layer bidirectional reinforcing steel bars.
6. The tower crane foundation on the foundation pit slope of claim 1, wherein the top elevation of the top plate is consistent with the top elevation of the top plate of the underground garage.
7. The tower crane foundation on the foundation pit slope according to claim 1, further comprising: the tower crane foundation bed course, the tower crane foundation bed course is located plate-type basis with between the main building foundation ditch bottom surface, just the bottom surface of tower crane foundation bed course flushes with the bottom surface of main building foundation bed course, main building foundation bed course set up in main building basis with between the main building foundation ditch bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022191763.2U CN214143788U (en) | 2020-09-29 | 2020-09-29 | Tower crane foundation on foundation pit slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022191763.2U CN214143788U (en) | 2020-09-29 | 2020-09-29 | Tower crane foundation on foundation pit slope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214143788U true CN214143788U (en) | 2021-09-07 |
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ID=77557654
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022191763.2U Expired - Fee Related CN214143788U (en) | 2020-09-29 | 2020-09-29 | Tower crane foundation on foundation pit slope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214143788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227405A (en) * | 2020-09-29 | 2021-01-15 | 上海建工七建集团有限公司 | Tower crane foundation located on foundation pit slope and construction method thereof |
-
2020
- 2020-09-29 CN CN202022191763.2U patent/CN214143788U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112227405A (en) * | 2020-09-29 | 2021-01-15 | 上海建工七建集团有限公司 | Tower crane foundation located on foundation pit slope and construction method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210907 |