CN215105474U - Ultra-deep foundation pit tower crane lattice type bearing platform foundation system - Google Patents
Ultra-deep foundation pit tower crane lattice type bearing platform foundation system Download PDFInfo
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- CN215105474U CN215105474U CN202121358685.9U CN202121358685U CN215105474U CN 215105474 U CN215105474 U CN 215105474U CN 202121358685 U CN202121358685 U CN 202121358685U CN 215105474 U CN215105474 U CN 215105474U
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Abstract
The utility model discloses a tower crane lattice type bearing platform foundation system for an ultra-deep foundation pit, which comprises a pile body extending into a soil body, a lattice column fixedly connected to the top of the pile body, a bearing platform connected to the top of the lattice column, a bottom baffle positioned at the bottom of the lattice column and connected to the inside of the pile body, and a top baffle detachably connected to the lattice column and positioned on the top surface of the bottom plate; the bearing platform is correspondingly connected with a tower crane. The utility model discloses construct tower crane foundation pile body, lattice column and cushion cap basis before the earthwork excavates, install the basis of tower crane in advance, solved deep basal pit construction tower crane and installed the foundation construction difficult problem in advance; the extending precision of the lattice column can be accurately realized through the baffle plates in the pile body; the arrangement of the top baffle is favorable for calibrating the pouring elevation of the bottom plate; the arrangement of the water stop plate through the vertical rod is beneficial to increasing the gripping force.
Description
Technical Field
The utility model belongs to the technical field of the construction, in particular to ultra-deep foundation ditch tower crane lattice formula cushion cap basis system.
Background
With the rapid development of domestic super high-rise buildings, the tower crane serving as the most important vertical transportation tool in the construction of the super high-rise buildings has increasingly mature use technology, and the tower crane foundation is a member for installing and fixing the tower crane, ensuring the normal use of the tower crane and transferring various actions of the tower crane to the foundation. Along with the deeper and deeper foundation pit depth, super high-rise buildings are higher and higher, the tower crane is used as a main vertical transportation device for vertical transportation organization construction in the foundation pit supporting and earth excavation stages of buildings in advance, and material transportation tools for the foundation pit supporting and pile foundation construction stages are adopted by more and more projects by mounting the tower crane in advance during the deep foundation pit construction. Aiming at the deep foundation pit tower crane foundation, because the excavation depth of the foundation pit is large, the universal reinforced concrete tower crane foundation can not be adopted, and the suitable tower crane foundation is selected to become a difficult problem to be solved in tower crane installation before the construction of the deep foundation pit.
SUMMERY OF THE UTILITY MODEL
The utility model provides an ultra-deep foundation ditch tower crane lattice formula cushion cap foundation system for solve tower crane foundation's accurate installation in advance, location and can circulate and use technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a tower crane lattice type bearing platform foundation system for an ultra-deep foundation pit comprises a pile body extending into a soil body, a lattice column fixedly connected to the top of the pile body, a bearing platform connected to the top of the lattice column, a bottom baffle plate positioned at the bottom of the lattice column and connected to the inside of the pile body, and a top baffle plate detachably connected to the lattice column and positioned on the top surface of a bottom plate; the bearing platform is correspondingly connected with a tower crane;
the latticed column comprises vertical rods which are arranged in a square or rectangular shape, a vertical rod batten plate connected to the adjacent vertical rods, a horizontal support connected between the adjacent vertical rods, a side diagonal support connected between the upper horizontal support and the lower horizontal support, a connecting plate connected to the vertical rods and a water stop plate connected to the vertical rods;
the connecting plate is correspondingly detachably connected with the horizontal support and the side inclined support.
Furthermore, the pile body is made of reinforced concrete, the vertical rods are inserted into the reinforced concrete, and the middle upper part of the reinforced concrete is welded with the bottom baffle which is an annular plate.
Further, the pile body is the bored concrete pile, and the pile body contains and is the annular and arranges that the stake is indulged the muscle, is connected in the stake and indulges the stake stirrup outside the muscle, connect in the stake and indulge the inboard stake of muscle and put more energy into the hoop and the stake concrete of pouring.
Furthermore, the pile stiffening hoop is connected with or welded with a bottom baffle through a bolt, and the position of the bottom baffle corresponds to the insertion position of the vertical rod.
Furthermore, the vertical rods are connected with water stop plates at the bottom plate section at intervals around the rod body, and the upper surface and the lower surface of each water stop plate are rough surfaces.
Further, the horizontal support contains the vertical horizontal support and the horizontal support that are square or rectangular frame, and vertical horizontal support and horizontal support are the member and can dismantle the connection of assembling.
Furthermore, the vertical rod inside the square or rectangle is internally connected with an X-shaped or m-shaped inner inclined strut, and the center of the X-shaped or m-shaped inner inclined strut is detachably connected with a collecting and connecting plate.
Furthermore, the bearing platform is a square or rectangular plate, the bearing platform is detachably connected with the horizontal support, and the lower part of the bearing platform, corresponding to the side surface of the horizontal support, is detachably connected with a reinforcing rib plate.
Furthermore, a bolt hole is reserved in the top of the bearing platform, and the bearing platform is connected with the detachable foot bolt through the bolt hole.
Furthermore, top baffle joint or bolted connection are in vertical pole, and top baffle height corresponds the bottom plate top surface.
The beneficial effects of the utility model are embodied in:
1) the utility model overcomes the limitations of the traditional tower crane foundation construction that earthwork is excavated first, the independent foundation of the tower crane is constructed, the pre-buried section of the tower crane is pre-buried, and the foundation of the tower crane is installed in advance by constructing the pile body, the lattice column and the bearing platform foundation of the tower crane foundation before the earthwork excavation, thereby solving the problem of foundation construction of the deep foundation pit construction tower crane in advance; the extending precision of the lattice column can be accurately realized through the baffle plates in the pile body;
2) the utility model adopts the lattice type bearing platform foundation, the lower part can utilize the structural engineering pile or the foundation pit supporting pile, the lattice column and the bearing platform are all processed by steel members, the materials can be recycled, and the pre-buried section of the tower crane is not needed to be pre-buried, thereby greatly saving the cost of the tower crane foundation;
3) the utility model is beneficial to calibrating the pouring elevation of the bottom plate through the arrangement of the top baffle; the arrangement of the water stop plate of the vertical rod is favorable for increasing the gripping force;
the utility model can be widely applied to the model selection of the tower crane foundation of the deep foundation pit or the model selection of the engineering tower crane foundation which needs to be installed in advance by the tower crane and can not be used for constructing the independent foundation of the tower crane; by adopting the tower crane foundation, the tower crane can be inserted in advance for installation, the vertical transportation efficiency of the engineering at the earthwork and foundation pit supporting construction stage is increased, and the material transportation cost at the earthwork and foundation pit supporting construction stage of the deep foundation pit is greatly reduced. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description.
Drawings
FIG. 1 is a schematic elevation view of a lattice steel foundation;
FIG. 2 is a schematic view of a second vertical plane of a lattice steel bearing platform foundation;
FIG. 3 is a schematic view of a lattice steel cap foundation bracing;
FIG. 4 is a schematic plan view of a lattice column;
FIG. 5 is a schematic plan view of the platform;
FIG. 6 is a schematic elevation of the platform;
FIG. 7 is a vertical schematic view of the connection of the vertical rod and the pile body;
FIG. 8 is a schematic plan view of the connection of the vertical rod and the pile body;
FIG. 9 is a schematic plan view of the vertical shaft;
FIG. 10 is a water stop node diagram.
Reference numerals: the method comprises the following steps of 1-pile body, 11-pile concrete, 12-pile longitudinal bars, 13-pile stirrups, 14-pile stiffening hoops, 2-bottom plate, 3-lattice column, 31-vertical rod, 32-vertical rod batten plate, 33-connecting plate, 34-horizontal support, 341-longitudinal horizontal support, 342-transverse horizontal support, 35-side inclined support, 36-reinforcing rib plate, 37-inner inclined support, 38-collecting connecting plate, 4-bearing platform, 5-bottom baffle, 6-top baffle, 7-water stop plate, 8-detachable foundation and 9-bolt hole.
Detailed Description
As shown in fig. 1 to 10, taking a certain ultra-deep foundation pit as an example, the tower crane foundation is installed by applying an ultra-deep foundation pit tower crane lattice type bearing platform foundation system. The lattice type bearing platform foundation system of the ultra-deep foundation pit tower crane comprises a pile body 1 extending into a soil body, a lattice column 3 fixedly connected to the top of the pile body 1, a bearing platform 4 connected to the top of the lattice column 3, a bottom baffle 5 positioned at the bottom of the lattice column 3 and connected to the inside of the pile body 1, and a top baffle 6 detachably connected to the lattice column 3 and positioned on the top surface of a bottom plate 2; the bearing platform 4 is correspondingly connected with a tower crane.
In this embodiment, the horizontal support 34 is made of steel rods, the horizontal support 34 includes a longitudinal horizontal support 341 and a transverse horizontal support 342 which are square or rectangular frames, and the longitudinal horizontal support 341 and the transverse horizontal support 342 are rod members and are detachably connected. The vertical rod 31 in the square or rectangular inner part is internally connected with an X-shaped or m-shaped inner inclined strut 37, and the center of the X-shaped or m-shaped inner inclined strut is detachably connected with a collecting and connecting plate 38. Wherein the inner inclined strut 37 is made of a steel rod, and the collecting connecting plate 38 is made of a steel plate.
In this embodiment, the size of the pile body 1 and the reinforcing bars are calculated and determined according to the tower crane stress and the corresponding geological conditions, and a structural engineering pile or a foundation pit support pile can also be used. The model of the tower crane lattice column 3 is determined by tower crane stress calculation, and the tower crane lattice column 3 is inserted into the tower crane pile body 1. The type of the bearing platform 4 is determined by tower crane stress calculation, the bearing platform is connected with the tower crane lattice column 3 upright column, and the bearing platform is installed after the concrete strength of the pile body 1 reaches 70%.
As shown in fig. 3 and 4, the lattice column 3 is made of steel, and includes vertical rods 31 arranged in a square or rectangular shape, vertical rod gusset plates 32 connected to the adjacent vertical rods 31, horizontal supports 34 connected between the adjacent vertical rods 31, side diagonal supports 35 connected between the upper and lower horizontal supports 34, connecting plates 33 connected to the vertical rods 31, and water stop plates 7 connected to the vertical rods 31. And (3) embedding a water stop steel plate with the thickness of 6mm in the middle of the tower crane lattice column 3 penetrating through the base plate 2 (the water stop steel plate is fully welded around the steel lattice column 3 and integrally cast with the basement base plate 2 structure.
In this embodiment, the connecting plate 33 is detachably connected to the horizontal support 34 and the side diagonal support 35. The vertical rod 31 is made of angle steel, the vertical rod batten plate 32, the horizontal support 34, the side inclined support 35 and the water stop plate 7 are made of steel plates or steel rods, and the connection is achieved through welding or bolt connection.
As shown in fig. 5 and 6, the platform 4 is a square or rectangular plate, the platform 4 is detachably connected to the horizontal supports 34, and the lower portion of the platform 4 is detachably connected to the side surfaces of the horizontal supports 34 corresponding to the reinforcing ribs 36. A bolt hole 9 is reserved in the top of the bearing platform 4, and the bearing platform 4 is connected with a detachable foundation 8 through the bolt hole 9.
In this embodiment, the vertical rod 31 is welded with the water stop plates at the 2 sections of the bottom plate at intervals around the rod body, the water stop plates are steel plates, and the upper surface and the lower surface of each water stop plate are rough surfaces. The top baffle 6 is clamped or bolted on the vertical rod 31, and the height of the top baffle 6 corresponds to the top surface of the bottom plate 2.
As shown in fig. 7 to 9, the pile body 1 is made of reinforced concrete, the vertical rod 31 is inserted into the reinforced concrete, the bottom baffle 5 is welded on the middle upper part of the reinforced concrete, and the bottom baffle 5 is an annular plate.
In this embodiment, pile body 1 is the bored concrete pile, and pile body 1 contains and is the annular pile of arranging and indulges muscle 12, connects in the pile hoop muscle 13 that the muscle 12 outside was indulged to the pile, connects in pile stiffening hoop 14 that the muscle 12 inboard was indulged to the pile and the stake concrete 11 of pouring. The pile stiffening hoops 14 are connected with or welded with bottom baffles 5 through bolts, and the positions of the bottom baffles 5 correspond to the insertion positions of the vertical rods 31.
Further, with reference to fig. 1 to 10, a construction method of the ultra-deep foundation pit tower crane lattice type bearing platform foundation system is specifically described, wherein the construction method comprises the following construction steps:
step one, according to different stress requirements, constructing a pile body 1, forming a hole in the pile body 1, and placing a reinforcement cage;
step two, the latticed column 3 is processed on site, and the latticed column 3 is put down together with a reinforcement cage when the pile body 1 is constructed; pouring concrete for the pile body 1 after positioning according to the bottom baffle 5; after the reinforcement cage is bound, hoisting to a specified hole position, slowly putting into a pile hole by using a truck crane, stopping putting when the top of the reinforcement cage is exposed out of the ground by 1m, and clamping and fixing the reinforcement cage by using 2m long 10# channel steel;
after the steel lattice column 3 is fixed and stable, the crane is used for hoisting and transporting the steel lattice column 3. Marking the position of the steel lattice column 3, which corresponds to the bottom baffle 5, by using red paint from the lowest end to 3m upwards, hoisting the steel lattice column 3 by using a truck crane, putting the steel reinforcement cage 3m downwards, and welding and fixing the steel lattice column 3 by using a steel reinforcement with the length of 450mm phi 16 on four sides after the steel lattice column is stabilized;
step three, after concrete pouring is finished, measuring offset data and specific elevation of the lattice column 3, and rechecking the upper bearing platform 4 according to the measurement result; the first concrete pouring is the pouring of the normal cast-in-place pile concrete 11, and the pouring is stopped when the pile top elevation is reached; after the concrete is initially set, pouring plain concrete with the mark C20 to the elevation of the ground; and after concrete pouring is finished, measuring the offset data and the specific elevation of the lattice column 3, and adjusting the design size of the steel bearing platform 4 according to the measurement result.
And step four, after the strength of the concrete reaches 70% of the design strength, the upper bearing platform 4 is installed.
And fifthly, knocking down the concrete on the latticed column 3 by using an iron hammer after the excavation starts, exposing angle steel and steel plates of the latticed column 3, sequentially welding a connecting plate 33 according to the excavation elevation, and installing a horizontal support 34 and a vertical support.
And step six, after the earth is excavated to the elevation of the foundation bottom plate 2, welding the latticed columns 3 and the inclined struts to the water stop steel plate within the thickness range of the bottom plate 2.
And seventhly, uniformly brushing the anti-rust paint and burying the underground part without brushing after all the components are completely installed, and polishing the welded joint before brushing.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be considered by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A lattice type bearing platform foundation system of an ultra-deep foundation pit tower crane is characterized by comprising a pile body (1) extending into a soil body, a lattice column (3) fixedly connected to the top of the pile body (1), a bearing platform (4) connected to the top of the lattice column (3), a bottom baffle (5) positioned at the bottom of the lattice column (3) and connected to the inside of the pile body (1), and a top baffle (6) detachably connected to the lattice column (3) and positioned on the top surface of a bottom plate (2); the bearing platform (4) is correspondingly connected with a tower crane;
the latticed column (3) comprises vertical rods (31) which are arranged in a square or rectangular shape, vertical rod batten plates (32) connected to the adjacent vertical rods (31), horizontal supports (34) connected between the adjacent vertical rods (31), side inclined supports (35) connected between the upper horizontal support and the lower horizontal support (34), connecting plates (33) connected to the vertical rods (31) and water stop plates (7) connected to the vertical rods (31);
the connecting plate (33) is correspondingly detachably connected with the horizontal support (34) and the side inclined support (35).
2. The ultra-deep foundation pit tower crane lattice type bearing platform foundation system of claim 1, wherein the pile body (1) is reinforced concrete, a vertical rod (31) is inserted into the reinforced concrete, a bottom baffle (5) is welded on the middle upper part of the reinforced concrete, and the bottom baffle (5) is an annular plate.
3. The ultra-deep foundation pit tower crane lattice type bearing platform foundation system of claim 1, wherein the pile body (1) is a concrete cast-in-place pile, and the pile body (1) comprises pile longitudinal ribs (12) arranged in a ring shape, pile stirrups (13) connected to the outer sides of the pile longitudinal ribs (12), pile stiffening hoops (14) connected to the inner sides of the pile longitudinal ribs (12), and poured pile concrete (11).
4. The ultra-deep foundation pit tower crane lattice type bearing platform foundation system as claimed in claim 3, wherein the pile stiffening hoops (14) are bolted or welded with bottom baffles (5), and the positions of the bottom baffles (5) correspond to the insertion positions of the vertical rods (31).
5. The ultra-deep foundation pit tower crane lattice type bearing platform foundation system as claimed in claim 1, wherein the vertical rods (31) are connected with water stop plates at the bottom plate (2) section at intervals around the rod body, and the upper surface and the lower surface of each water stop plate are rough surfaces.
6. The ultra-deep foundation pit tower crane lattice type bearing platform foundation system as claimed in claim 1, wherein the horizontal supports (34) comprise longitudinal horizontal supports (341) and transverse horizontal supports (342) which are square or rectangular frames, and the longitudinal horizontal supports (341) and the transverse horizontal supports (342) are rod pieces and are detachably connected.
7. The ultra-deep foundation pit tower crane lattice type bearing platform foundation system as claimed in claim 1, wherein the vertical rod (31) in the square or rectangular interior is internally connected with an inner inclined strut (37) in an X shape or a meter shape, and a collecting and connecting plate (38) is detachably connected at the center of the X shape or the meter shape.
8. The ultra-deep foundation pit tower crane lattice type bearing platform foundation system as claimed in claim 1, wherein the bearing platform (4) is a square or rectangular plate, the bearing platform (4) is detachably connected with the horizontal support (34), and the lower part of the bearing platform (4) corresponding to the side surface of the horizontal support (34) is detachably connected with a reinforcing rib plate (36).
9. The ultra-deep foundation pit tower crane lattice type bearing platform foundation system as claimed in claim 8, wherein a bolt hole (9) is reserved at the top of the bearing platform (4), and the bearing platform (4) is in bolt connection with a detachable foundation (8) through the bolt hole (9).
10. The ultra-deep foundation pit tower crane lattice type bearing platform foundation system as claimed in claim 1, wherein the top baffle (6) is connected to the vertical rod (31) in a clamping or bolt mode, and the height of the top baffle (6) corresponds to the top surface of the bottom plate (2).
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| CN202121358685.9U CN215105474U (en) | 2021-06-18 | 2021-06-18 | Ultra-deep foundation pit tower crane lattice type bearing platform foundation system |
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| CN202121358685.9U CN215105474U (en) | 2021-06-18 | 2021-06-18 | Ultra-deep foundation pit tower crane lattice type bearing platform foundation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134928A (en) * | 2021-12-22 | 2022-03-04 | 中铁四局集团有限公司 | Steel pipe column tower crane foundation construction method |
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2021
- 2021-06-18 CN CN202121358685.9U patent/CN215105474U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114134928A (en) * | 2021-12-22 | 2022-03-04 | 中铁四局集团有限公司 | Steel pipe column tower crane foundation construction method |
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