CN215630078U - Reverse steel platform foundation structure - Google Patents
Reverse steel platform foundation structure Download PDFInfo
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- CN215630078U CN215630078U CN202121825829.7U CN202121825829U CN215630078U CN 215630078 U CN215630078 U CN 215630078U CN 202121825829 U CN202121825829 U CN 202121825829U CN 215630078 U CN215630078 U CN 215630078U
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Abstract
The utility model discloses a reverse steel platform foundation structure, which comprises a steel pipe support, a column top cover plate and a cross steel beam, wherein the steel pipe support is arranged on the column top cover plate; the column top cover plate is fixedly arranged at the top of the steel tube support; the number of the steel pipe supports is four, and the steel pipe supports are respectively and fixedly arranged on the lower flange of the cross steel beam. The structure is reasonable in design and more stable; the labor intensity of constructors can be reduced, the construction period is shortened, and the cost of a large project part is saved; the problem that the free height of the tower crane cannot be met due to the fact that the site is narrow and small and surrounding buildings are dense is solved.
Description
Technical Field
The utility model relates to the field of buildings, in particular to a foundation structure of a reverse steel platform.
Background
The existing urbanization process of China is high in speed, urban land resources are short, a building to be built is often in the central zone of a city, and the surrounding environment is complex. And the owners are more normalized in pursuing the maximum utilization of the underground space. Research shows that under the condition of urban complex terrains, the construction site of a high-rise building is narrow, and if a truck crane is adopted for construction, the efficiency is very low while the construction cost is greatly increased. For projects with tight construction periods, the difficulty in achieving project goals is very great. In order to solve the problems in the prior art, the application provides a foundation structure of a reverse steel platform,
the reverse steel platform construction technology can solve the problems that the site is narrow and small, surrounding buildings are dense and the free height of the tower crane cannot be met, so that the reverse steel platform construction technology is very wide in application amount in future urbanization development.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a foundation structure of a reverse steel platform.
In order to solve the technical problems, the technical scheme provided by the utility model is that the foundation structure of the reverse steel platform comprises the following components:
the steel pipe support comprises a steel pipe support, a column top cover plate and a cross steel beam;
the column top cover plate is fixedly arranged at the top of the steel tube support;
the number of the steel pipe supports is four, and the steel pipe supports are respectively and fixedly arranged on the lower flange of the cross steel beam.
As an improvement, the joint of the column top cover plate and the steel pipe support is welded by groove welding, and the grade of the welding line is first grade.
As the improvement, the cross girder steel includes that a main girder steel and two assist the girder steel to constitute, assist the one end fixed connection of girder steel in the middle part of main girder steel.
As an improvement, the lower flange of the cross-shaped steel beam is fully welded with the column top cover plate, the welding line of the fully welded part is groove welding, and the grade of the welding line is two-stage.
As an improvement, one end of the auxiliary steel beam is connected to the middle of the main steel beam in a welding mode and a bolt fixing mode.
As an improvement, two adjacent steel pipe supports are provided with connecting steel plates.
Compared with the prior art, the utility model has the advantages that: the structure is reasonable in design and more stable; the labor intensity of constructors can be reduced, the construction period is shortened, and the cost of a large project part is saved; the problem that the free height of the tower crane cannot be met due to the fact that the site is narrow and small and surrounding buildings are dense is solved.
Drawings
Fig. 1 is a schematic top view of a foundation structure of a reverse steel platform according to the present invention.
FIG. 2 is a schematic structural diagram of a reverse steel platform foundation structure according to the present invention.
FIG. 3 is a schematic view of a steel tube support structure of a reverse steel platform foundation structure of the present invention.
FIG. 4 is a schematic diagram of a column top cover plate structure of a reverse steel platform foundation structure of the present invention.
Fig. 5 is a schematic structural diagram of GL1 and a column top cover plate of a reverse steel platform foundation structure according to the present invention.
FIG. 6 is a schematic view of a tower crane bearing platform beam GL1 at the elevation of the foundation structure of the reverse construction steel platform.
FIG. 7 is a schematic view of a steel beam connection plane of a reverse steel platform foundation structure according to the present invention.
As shown in the figure: 1. steel pipe supports, 2, post crown plate, 3, cross girder steel, 4, main girder steel, 5, the supplementary girder steel, 6, the steel sheet.
Detailed Description
The following describes a reverse steel platform foundation structure in further detail with reference to the accompanying drawings.
With the combination of the attached drawings, the foundation structure of the reverse steel platform comprises a steel pipe support 1, a column top cover plate 2 and a cross-shaped steel beam 3;
the column top cover plate 2 is fixedly arranged at the top of the steel tube support 1;
the number of the steel pipe supports 1 is four, and the steel pipe supports are respectively and fixedly arranged on the lower flange of the cross steel beam 3.
And the joint part of the column top cover plate 2 and the steel pipe support 1 is welded by groove welding, and the grade of the welding line is one grade.
The cross steel beam 3 comprises a main steel beam 4 and two auxiliary steel beams 5, and one end of each auxiliary steel beam 5 is fixedly connected to the middle of the main steel beam 4.
The lower flange of the cross steel beam 3 is fully welded with the column top cover plate 2, the welding line of the fully welded part is groove welding, and the grade of the welding line is two-stage.
One end of the auxiliary steel beam 5 is connected to the middle of the main steel beam 4 in a welding mode and a bolt fixing mode.
Two adjacent steel pipe supports 1 are provided with connecting steel plates 6.
A construction method of a foundation structure of a reverse steel platform comprises the steps of constructing the foundation structure of the reverse steel platform,
the method comprises the following steps:
firstly, positioning and paying off;
step two, the pile machinery takes place;
step three, rechecking;
fourthly, opening the drill;
fifthly, detecting that the mud proportion, the drilling depth and the sediment thickness meet the design and related specifications;
sixthly, installing a reinforcement cage and a steel pipe pile;
step seven, installing a concrete pouring guide pipe;
step eight, pouring concrete;
step nine, detecting the integrity of the pile body after 7 days;
step ten, picking and chiseling the pile head;
step eleven, detecting small strain;
step twelve, pass;
step thirteen, full welding of the flange of the lower opening of the ring plate;
fourteen, carrying out full welding on the upper opening of the ring plate;
fifthly, fully welding the lower opening seam of the ring plate;
sixthly, welding the steel beam 2(HN400x200x8x 13);
seventhly, welding the steel beam 1(HH800x500x20x 30);
eighteen, detecting whether the welding line meets the requirements of design and relevant acceptance specifications by ultrasonic waves;
nineteen, meeting the design requirements and relevant specifications;
twenty, mounting a tower crane;
twenty one, reinforcing the steel pipe column;
and twenty-two steps, reinforcing the basic nodes and performing waterproof treatment.
The utility model is embodied in conjunction with the accompanying figures 1-7. A reverse steel platform foundation structure comprises a steel pipe support 1, a column top cover plate 2 and a cross steel beam 3; the column top cover plate 2 is fixedly arranged at the top of the steel tube support 1; the number of the steel pipe supports 1 is four, and the steel pipe supports are respectively and fixedly arranged on the lower flange of the cross steel beam 3. The joint of the column top cover plate 2 and the steel pipe support 1 is welded by groove welding, and the grade of the welding line is first grade. The cross girder steel 3 includes that a main girder steel 4 and two assist girder steel 5 to constitute, and the one end fixed connection of assisting girder steel 5 is in the middle part of main girder steel 4. The lower flange of the cross steel beam 3 is fully welded with the column top cover plate 2, the welding line of the fully welded part is groove welding, and the grade of the welding line is two-stage. One end of the auxiliary steel beam 5 is connected to the middle part of the main steel beam 4 in a welding mode and a bolt fixing mode. Two adjacent steel pipe supports 1 are provided with connecting steel plates 6. The process flow of the reverse tower crane foundation is as follows: positioning and paying-off → pile machinery in place → rechecking → drilling → detecting mud weight, drilling depth and sediment thickness which meet design and relevant specifications → installing a steel reinforcement cage and a steel pipe pile → installing a concrete pouring guide pipe → concrete pouring → 7 days later detecting the integrity of a pile body → picking a pile head → small strain detection → qualification → full welding of a flange at the lower opening of a ring plate → full welding of a broken seam at the upper opening of the ring plate → full welding of a seam at the lower opening of the ring plate → full welding of a welded steel beam 2(HN400x200x8x13) → welded steel beam 1(HH800x500x20x30) → ultrasonic detecting whether the weld meets the requirements of the design and relevant acceptance specifications → meets the design requirements and relevant specifications → tower crane installation → steel pipe column reinforcement → foundation node reinforcement and waterproof treatment.
The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (6)
1. The utility model provides a contrary steel platform foundation structure of doing which characterized in that: comprises a steel pipe support (1), a column top cover plate (2) and a cross steel beam (3); the column top cover plate (2) is fixedly arranged at the top of the steel tube support (1);
the number of the steel pipe supports (1) is four, and the steel pipe supports are respectively and fixedly arranged on the lower flange of the cross steel beam (3).
2. The inverted steel platform infrastructure of claim 1, wherein: and the joint part of the column top cover plate (2) and the steel pipe support (1) is welded by groove welding, and the grade of the welding line is one grade.
3. The inverted steel platform infrastructure of claim 1, wherein: the cross steel beam (3) comprises a main steel beam (4) and two auxiliary steel beams (5), and one end of each auxiliary steel beam (5) is fixedly connected to the middle of the main steel beam (4).
4. The inverted steel platform infrastructure of claim 1, wherein: the lower flange of the cross steel beam (3) is fully welded with the column top cover plate (2), the welding line of the fully welded part is groove welding, and the grade of the welding line is two-stage.
5. A reverse steel platform substructure according to claim 3, characterized in that: one end of the auxiliary steel beam (5) is connected to the middle of the main steel beam (4) in a welding mode and a bolt fixing mode.
6. The inverted steel platform infrastructure of claim 1, wherein: and two adjacent steel pipe supports (1) are provided with connecting steel plates (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121825829.7U CN215630078U (en) | 2021-08-06 | 2021-08-06 | Reverse steel platform foundation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121825829.7U CN215630078U (en) | 2021-08-06 | 2021-08-06 | Reverse steel platform foundation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215630078U true CN215630078U (en) | 2022-01-25 |
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ID=79895453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121825829.7U Active CN215630078U (en) | 2021-08-06 | 2021-08-06 | Reverse steel platform foundation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215630078U (en) |
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2021
- 2021-08-06 CN CN202121825829.7U patent/CN215630078U/en active Active
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