CN214401746U - Reverse construction method one-column one-pile construction structure - Google Patents
Reverse construction method one-column one-pile construction structure Download PDFInfo
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- CN214401746U CN214401746U CN202022802738.3U CN202022802738U CN214401746U CN 214401746 U CN214401746 U CN 214401746U CN 202022802738 U CN202022802738 U CN 202022802738U CN 214401746 U CN214401746 U CN 214401746U
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Abstract
The utility model discloses a top-down construction method one-column-one-pile construction structure, which comprises a steel column, a reinforcement cage, a pile hole, a cross arm and a hanging rib; the cross arm spans the pile hole, the reinforcement cage is suspended in the pile hole through the cross arm, and the cross arm is movably connected with the reinforcement cage; the lower end of the steel column is positioned in the reinforcement cage; the upper end of the lifting rib is connected with the steel column, and the lower end of the lifting rib is movably connected with the reinforcement cage. The utility model has the advantages that: through the pre-fixing of cross arm to steel reinforcement cage, the rethread hangs the muscle and is whole with steel column and steel reinforcement cage swing joint, can transfer as whole when making steel column and steel reinforcement cage transfer to the stake hole, and the steel column can be regulated and control alone simultaneously, has effectively solved steel reinforcement cage and steel column and has inserted the inconvenient problem of butt joint operation secretly in the stake hole, improves construction controllability and efficiency greatly, effectively ensures construction quality.
Description
Technical Field
The utility model relates to a building technical field specifically indicates a reverse construction method a post construction structures.
Background
With the maturity of the construction technology of the reverse method, the method is widely applied. A top-down construction method uses one column and one pile as a vertical supporting structure, and belongs to an advanced construction structure. When constructing a column-pile, a steel column needs to be inserted into a reinforcement cage before concrete is poured. In the traditional method, a steel reinforcement cage is firstly hoisted to the bottom of a pile hole, then a steel column is hoisted, and the steel column is inserted into the steel reinforcement cage in the pile hole. Because of steel reinforcement cage and steel column lack effectual setting element and support piece, and carry out the grafting operation in stake hole depths, it is big to have the control degree of difficulty, easily appears the steel column collision steel reinforcement cage, and steel column lower part peg catches steel reinforcement cage scheduling problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the problems that the attachment of the existing construction elevator is inconvenient to disassemble and assemble and the attachment needs to be frequently disassembled and assembled in order to ensure the construction safety, and providing a one-column one-pile construction structure of a reverse construction method, which comprises a steel column, a reinforcement cage, a pile hole, a cross arm and a hanging rib; the cross arm spans the pile hole, the reinforcement cage is suspended in the pile hole through the cross arm, and the cross arm is movably connected with the reinforcement cage; the lower end of the steel column is positioned in the reinforcement cage; the upper end of the lifting rib is connected with the steel column, and the lower end of the lifting rib is movably connected with the reinforcement cage.
Furthermore, the upper end of the pile hole is also provided with a horizontal well-shaped frame; two ends of the cross arm are erected on the derrick; the reinforcement cage penetrates through the center of the derrick. The derrick can provide stable support system for the hoisting of steel column and steel reinforcement cage.
Further, a supporting plate is arranged at the upper end of the steel column; the orthographic projection of the supporting plate on the horizontal plane is at least partially positioned at the upper end of the headframe.
Further, the supporting plate is provided with a plurality of steel columns along the circumferential direction of the steel columns.
Furthermore, the side end of the steel column is provided with a mark for marking the depth of the steel column inserted into the steel reinforcement cage. The steel column lowering depth can be conveniently known through the identification, and the construction efficiency is improved.
Further, the lower end of the steel column is provided with a foot plate; the vertical distance between the foot plate and the mark is the design depth of the steel column inserted into the steel reinforcement cage.
Further, a lifting lug is arranged at the upper end of the steel column, and a lifting ring is arranged on the lifting lug; the upper end of the lifting rib is connected with the lifting ring. Through the cooperation of rings and lug, the inclination adjustment of hanging the muscle is more convenient.
Further, the lug is followed the steel column circumference evenly is provided with a plurality ofly.
Further, the reinforcement cage comprises a reinforcement cage main reinforcement, a reinforcement cage reinforcing rib and a reinforcement cage stirrup; and the lower end of the hanging rib is welded with the main reinforcement of the reinforcement cage.
The utility model has the advantages that: through the pre-fixing of cross arm to steel reinforcement cage, the rethread hangs the muscle and is whole with steel column and steel reinforcement cage swing joint, can transfer as whole when making steel column and steel reinforcement cage transfer to the stake hole, and the steel column can be regulated and control alone simultaneously, has effectively solved steel reinforcement cage and steel column and has inserted the inconvenient problem of butt joint operation secretly in the stake hole, improves construction controllability and efficiency greatly, effectively ensures construction quality.
Drawings
Fig. 1 is the enlarged schematic structural diagram of the steel reinforcement cage of the top-down construction method one-column one-pile construction structure suspended at the pile hole through the vertical frame.
Fig. 2 is a schematic top view of the structure of fig. 1.
Fig. 3 is a schematic view of the steel column of the top-down construction method-column-pile construction structure of the present invention being lifted to the top of the pile hole.
Fig. 4 is a schematic structural view of the steel column of fig. 3 after the suspension bars are connected with the reinforcement cage of fig. 1.
Fig. 5 is a schematic structural view of the steel column and the reinforcement cage of fig. 4 being connected as a whole and then being lowered into a pile hole.
Fig. 6 is a schematic structural view of the steel column and the reinforcement cage of fig. 5 after being lowered.
Fig. 7 is a schematic top view of the structure of fig. 6.
In the figure: 1-steel column; 2-lifting lugs; 3-hoisting rings; 4-hanging the reinforcement; 5-big hook; 6-lifting a rope; 7-reinforcing cage main reinforcement; 8-reinforcing steel bar cage reinforcing hoops; 9-reinforcement cage stirrups; 10-a derrick; 11-cross arm; 12-a peg; 13-a foot plate; 14-a pallet; 15-pile hole.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
The top-down construction method one-column-one-pile construction structure shown in fig. 1 to 7 comprises a steel column 1, a reinforcement cage, a pile hole 15, a cross arm 11 and a hanging rib 4; the steel reinforcement cage includes steel reinforcement cage owner muscle 7, steel reinforcement cage strengthening rib and steel reinforcement cage stirrup 9, and the steel reinforcement cage owner muscle 7, the steel reinforcement cage strengthening rib of the steel reinforcement cage of this embodiment and the connected mode of steel reinforcement cage stirrup 9 adopt current structure, and this embodiment does not inject.
The cross arm 11 spans the pile hole 15, the reinforcement cage is suspended in the pile hole 15 through the cross arm 11, and the cross arm 11 is movably connected with the reinforcement cage; that is, after the cross arm 11 passes through the reinforcement cage, both ends of the cross arm 11 are erected on both sides of the pile hole 15, so that the reinforcement cage is hung in the pile hole 15 and near the upper end of the pile hole 15. In order to stably suspend the reinforcement cage, the cross arms 11 of the embodiment are at least two and arranged in parallel at intervals, and the cross arms 11 are preferably arranged at the lower end of the reinforcement cage. In order to further improve the stability, the upper end of the pile hole 15 is also provided with a horizontal well-shaped frame 10, and the well-shaped frame 10 can be welded into a whole by a plurality of channel steel; two ends of the cross arm 11 are erected on the well-shaped frame 10; the reinforcement cage vertically passes through the center of the headframe 10. Because the derrick 10 includes the rectangle inside casing, the rectangle inside casing of preferred derrick 10 in this embodiment is the square, consequently, can adjust the reinforcement cage center through the interval of each frame of reinforcement cage side and rectangle inside casing when putting the reinforcement cage, make the vertical center of reinforcement cage align with the vertical center of derrick 10, and when the derrick 10 was put, also can utilize the principle that rectangle inside casing and pile hole 15 inner wall kept the same interval to adjust the vertical center of derrick 10 and the vertical center of pile hole 15 and align, thereby can guarantee the centering installation of reinforcement cage.
The lower end of the steel column 1 is positioned in the steel reinforcement cage; the upper end of the hanging rib 4 is connected with the steel column 1, and the lower end of the hanging rib 4 is movably connected with the steel reinforcement cage. The lifting rib 4 is preferably a steel bar with the same type as the steel reinforcement cage main rib 7, and the lower end of the lifting rib 4 and the steel reinforcement cage main rib 7 in the embodiment adopt a welding mode, namely, when the steel column 1 and the steel reinforcement cage are required to be connected into a whole, the lifting rib 4 and the steel reinforcement cage main rib 7 are welded; when the steel column 1 needs to be separated from the steel reinforcement cage, the steel column 1 is convenient to adjust independently, the hanging ribs 4 are cut off or the welding positions of the hanging ribs 4 and the steel reinforcement cage main ribs 7 are cut off. Hang muscle 4 and steel reinforcement cage owner muscle 7 still can adopt other connected mode, for example thread bush, hang 4 lower extremes of muscle and 7 upper ends of steel reinforcement cage owner muscle all be equipped with thread bush complex screw thread section, when needing to hang muscle 4 and steel reinforcement cage owner muscle 7 and connect, adopt thread bush will hang muscle 4 and steel reinforcement cage owner muscle 7 and connect can, when needs hang muscle 4 and the separation of steel reinforcement cage owner muscle 7, it can to twist off the thread bush that hangs on muscle 4 or the steel reinforcement cage owner muscle 7, this kind of movable connection mode compares the form of welding re-cutting and is simpler, but connection stability probably does not have welded mode stable, in order to improve stability, can realize the locking to thread bush at thread bush both ends threaded connection nut again.
The upper end of the steel column 1 is provided with a supporting plate 14; the orthographic projection of the pallet 14 on a horizontal plane is at least partially located at the upper end of the derrick 10. In this embodiment, four support plates 14 are arranged along the circumferential direction of the steel column 1, and the support plates 14 may be arranged at the upper end of the steel column 1 in advance or may be welded in the later stage; one end of the supporting plate 14 is connected with the steel column 1, and after the steel column 1 is lowered, the other end of the supporting plate 14 is erected on the derrick 10. The supporting plate 14 may further have scale marks along its length direction, and the scale marks are used as reference lines for adjusting the positions of the steel columns 1 in conjunction with the derrick 10.
In order to facilitate the control of the lowering depth of the steel column 1, the side end of the steel column 1 is provided with a mark for marking the depth of the steel column 1 inserted into the steel reinforcement cage. The lower end of the steel column 1 is provided with a foot plate 13; the vertical distance between the foot plate 13 and the mark is the design depth of the steel column 1 inserted into the steel reinforcement cage. The steel column 1 is further provided with a stud 12, in this embodiment, the stud 12 and the foot plate 13 on the steel column 1 are both of conventional structures, and this embodiment is not particularly limited.
In order to facilitate the suspension of the steel column 1, four lifting lugs 2 are uniformly arranged at the upper end of the steel column 1 along the circumferential direction, and lifting rings 3 are arranged on the lifting lugs 2; the upper end of the hanging bar 4 is connected with the hanging ring 3. Because rings 3 and lug 2 cooperation, hang the adjustable inclination of muscle 4 to adapt to not unidimensional steel reinforcement cage, hang muscle 4 promptly and can swing as the center by lug 2, make and hang 4 lower extremes of muscle and be connected with the 7 upper ends of the steel reinforcement cage owner muscle of different positions.
The steps of constructing the top-down construction method one-column-one-pile construction structure of the embodiment are as follows:
and (3) arranging pile holes 15, anchoring and installing the headframe 10 on the hardened ground at the upper ends of the pile holes 15 after the pile holes 15 are finished, and adjusting the level of the headframe 10.
Hoisting a steel reinforcement cage, adjusting the steel reinforcement cage to vertical state, slowly passing the steel reinforcement cage through the derrick 10 and putting down to the pile hole 15, when the steel reinforcement cage strengthening rib of the steel reinforcement cage the superiors is about to be in below the derrick 10, penetrating the cross arm 11 below the steel reinforcement cage strengthening rib, the two sides of the cross arm 11 are in the upper end of the derrick 10, thereby suspending the steel reinforcement cage in the pile hole 15 through the derrick 10.
And marking the depth and the position of the steel column 1, which needs to be inserted into the steel reinforcement cage, by using red paint at the side end of the steel column 1 as a mark. The lifting lug 2 and the lifting ring 3 arranged on the steel column 1 can be prefabricated in advance and can also be welded on site; and a hanging rib 4 is connected on the hanging ring 3.
Adopt two track cranes to carry up steel column 1 progressively, adjust steel column 1 to vertical back, transport to pile hole 15 upper end, slowly transfer to the steel reinforcement cage after centering with the steel reinforcement cage in, transfer the in-process, notice steel column 1, peg 12, sole 13 and steel reinforcement cage inner keep certain interval, avoid colliding with hang.
After the steel column 1 is inserted into the steel reinforcement cage to a depth reaching the design requirement, the identification position is aligned with the upper end of the steel reinforcement cage, and the steel column 1 is stopped to be transferred. And welding the hanging ribs 4 reserved on the steel column 1 and the main reinforcement 7 of the steel reinforcement cage on two sides.
After welding, the steel column 1 and the steel reinforcement cage are connected into a whole, the whole is slightly lifted by a large hook 5 of a crane through a lifting rope 6 (the lifting rope 6 is connected with the large hook 5, and the lifting rope 6 passes through a lifting ring 3), so that reinforcing ribs of the steel reinforcement cage at the uppermost layer are separated from the cross arm 11, and the cross arm 11 is removed; and slowly lowering the whole body connected with the steel column 1 and the steel reinforcement cage, cutting off the hanging ribs 4 after the steel reinforcement cage is lowered to the bottom of the pile hole 15, separating the steel column 1 from the steel reinforcement cage, adjusting the position of the steel column 1, welding one end of the supporting plate 14 with the outer side of the steel column 1, adjusting the position of the steel column 1 by using the supporting plate 14 as a positioning reference, and after the position of the steel column 1 is adjusted, welding and fixing the other end of the supporting plate 14 with the # -shaped frame 10 to complete the construction of one column and one pile.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that a person skilled in the art should also recognize that several modifications and decorations can be made without departing from the principle of the present invention, and the protection scope of the present invention is also covered.
Claims (9)
1. The utility model provides a reverse construction method one post one pile construction structures which characterized in that: the steel column comprises a steel column, a steel reinforcement cage, a pile hole, a cross arm and a hanging rib; the cross arm spans the pile hole, the reinforcement cage is suspended in the pile hole through the cross arm, and the cross arm is movably connected with the reinforcement cage; the lower end of the steel column is positioned in the reinforcement cage; the upper end of the lifting rib is connected with the steel column, and the lower end of the lifting rib is movably connected with the reinforcement cage.
2. The reverse construction method one-column-one-pile construction structure as claimed in claim 1, wherein: the upper end of the pile hole is also provided with a horizontal well-shaped frame; two ends of the cross arm are erected on the derrick; the reinforcement cage penetrates through the center of the derrick.
3. The reverse construction method one-column-one-pile construction structure as claimed in claim 2, wherein: the upper end of the steel column is provided with a supporting plate; the orthographic projection of the supporting plate on the horizontal plane is at least partially positioned at the upper end of the headframe.
4. The reverse construction method one-column-one-pile construction structure according to claim 3, wherein: the supporting plate is provided with a plurality of steel columns along the circumferential direction of the steel columns.
5. The reverse construction method one-column-one-pile construction structure as claimed in claim 1, wherein: and the side end of the steel column is provided with a mark for marking the depth of the steel column inserted into the steel reinforcement cage.
6. The reverse construction method one-column-one-pile construction structure of claim 5, wherein: the lower end of the steel column is provided with a foot plate; the vertical distance between the foot plate and the mark is the design depth of the steel column inserted into the steel reinforcement cage.
7. The reverse construction method one-column-one-pile construction structure as claimed in claim 1, wherein: lifting lugs are arranged at the upper ends of the steel columns, and lifting rings are arranged on the lifting lugs; the upper end of the lifting rib is connected with the lifting ring.
8. The reverse construction method one-column-one-pile construction structure of claim 7, wherein: the lifting lugs are uniformly arranged along the circumferential direction of the steel column.
9. The reverse construction method one-column-one-pile construction structure as claimed in claim 1, wherein: the reinforcement cage comprises a reinforcement cage main reinforcement, a reinforcement cage reinforcing rib and a reinforcement cage stirrup; and the lower end of the hanging rib is welded with the main reinforcement of the reinforcement cage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022802738.3U CN214401746U (en) | 2020-11-27 | 2020-11-27 | Reverse construction method one-column one-pile construction structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022802738.3U CN214401746U (en) | 2020-11-27 | 2020-11-27 | Reverse construction method one-column one-pile construction structure |
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| CN214401746U true CN214401746U (en) | 2021-10-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627771A (en) * | 2022-10-13 | 2023-01-20 | 广东省基础工程集团有限公司 | Foundation pit supporting structure |
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2020
- 2020-11-27 CN CN202022802738.3U patent/CN214401746U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115627771A (en) * | 2022-10-13 | 2023-01-20 | 广东省基础工程集团有限公司 | Foundation pit supporting structure |
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