CN214883826U

CN214883826U - Novel assembled tower crane steel foundation

Info

Publication number: CN214883826U
Application number: CN202121460304.8U
Authority: CN
Inventors: 刘波; 严里特; 黄峰; 全有维
Original assignee: Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
Current assignee: Third Construction Co Ltd of China Construction Eighth Engineering Divison Co Ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2021-11-26
Anticipated expiration: 2031-06-29

Abstract

The utility model provides a novel assembled tower crane steel basis belongs to construction technical field, including four steel pipe stands of being made by multisection steel pipe concatenation from bottom to top, wherein last section steel pipe is connected with the girder steel cushion cap, and first section steel pipe penetrates the basement bottom plate. The upper reinforcing steel bar of basement bottom plate ligature and the welding of first section steel pipe surface are in the same place, and the bottom welding of first section steel pipe stagnant water steel sheet, stagnant water steel sheet lower surface and the lower part reinforcing steel bar of basement bottom plate ligature are in the same place. An inner steel pipe is arranged between the inner parts of two adjacent sections of steel pipes through bolts; install the stull on the steel pipe with the contact of girder steel cushion cap, all install many bracing between two steel pipe stands that lie in same one side. The steel tube upright post adopts an assembly structure, so that the overall height of the tower crane steel foundation is adjustable, and the use is flexible and convenient; the setting of bracing and stull has effectively increased steel pipe stand section performance, helps reducing slenderness ratio, improves tower crane steel basis overall stability.

Description

Novel assembled tower crane steel foundation

Technical Field

The utility model belongs to the technical field of the construction, especially, relate to a novel assembled tower crane steel basis.

Background

In the present building construction project, more and more to the utilization in underground space, when deep basal pit horizontal support structure is under construction, often can require the tower crane to install in advance and use. The tower crane foundation is firstly constructed into a pile foundation according to requirements, then the latticed column and the bearing platform are installed, and then the tower crane foundation is installed on the bearing platform. Four integral lattice columns are mostly adopted in the existing tower crane steel foundation, so that the height of the tower crane steel foundation is not adjustable, and the flexibility is not good; in addition, because the length-thin ratio of the lattice column is large, the lattice column is easy to incline in the construction process, the construction quality is not easy to guarantee, and large potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

To exist not enough among the prior art, the utility model provides a novel assembled tower crane steel foundatin, adopt multisection steel pipe concatenation to make the steel pipe stand that has multilayer structure for tower crane steel foundatin height-adjustable festival, it is nimble more convenient to use.

The utility model discloses a realize above-mentioned technical purpose through following technological means.

A novel assembled tower crane steel foundation comprises four steel pipe stand columns, wherein the lower ends of the steel pipe stand columns are connected with a basement bottom plate, and the tops of the steel pipe stand columns are connected with a steel beam bearing platform; the steel pipe column is a multilayer structure formed by sequentially splicing a plurality of sections of steel pipes from bottom to top, wherein two adjacent sections of steel pipes are connected together through bolts, and inner steel pipes are installed inside the steel pipes through bolts.

Furthermore, the lower end of the steel tube upright post penetrates into the basement bottom plate, and an upper reinforcing steel bar bound on the basement bottom plate is welded with the outer surface of the steel tube upright post; the bottom of the steel pipe upright post is welded with a water stop steel plate, and the lower surface of the water stop steel plate is welded with a lower reinforcing steel bar bound with the basement bottom plate.

Further, with install the stull on the steel pipe that the girder steel cushion cap is connected, and stull horizontal installation is between two adjacent steel pipes.

Furthermore, a plurality of inclined struts are arranged between every two adjacent steel pipe upright columns through node batten plates, and two ends of each inclined strut are respectively connected with two sections of steel pipes on the adjacent layers of the steel pipe upright columns; the number of layers of the steel tube stand column is N, N is a positive integer, and N is more than or equal to 2.

Further, when the number of layers of the steel pipe stand columns is 2, an inclined strut is arranged between every two adjacent steel pipe stand columns.

Further, when the number of the steel pipe upright columns is more than 2, the number of the inclined struts arranged between every two adjacent steel pipe upright columns is 2 x (N-1); the same quantity of bracing that just intercrossing set up all installs on the steel pipe between the adjacent layer of steel pipe stand.

Further, the steel beam bearing platform is a # -shaped bearing platform made of a plurality of H-shaped steel stitch welds, a first stiffening plate is arranged in the steel beam bearing platform, a second stiffening plate is arranged at the connecting position of the steel beam bearing platform and the steel pipe, and a steel structure used for installing a tower crane is arranged at the top of the steel beam bearing platform through bolts.

Furthermore, the steel pipe is a round pipe with the diameter of 500mm and the length of 4m, and the inner steel pipe is a round pipe with the diameter of 450mm and the length of 500 mm.

Further, the steel girder platform 10 is made of a Q345b steel plate having a thickness of 20 mm.

The utility model discloses following beneficial effect has:

the utility model provides a tower crane steel foundation is assembled structure, and the steel pipe stand innovation of girder steel cushion cap below adopts the multilayer structure of being made by the concatenation of multisection steel pipe, has guaranteed the whole height-adjustable festival of tower crane steel foundation, has increased its utilizability, and it is nimble more convenient to use. Moreover, the steel pipe stand structure of assembled sets up and makes the utility model discloses can have enough to meet the need the use, the structure utilization rate is high, and the installation is all very convenient with the dismantlement.

The utility model provides a still be provided with bracing and stull on the steel pipe stand, effectively increased the cross-sectional performance of steel pipe stand, help reducing the slenderness ratio, improve the holistic stability of tower crane steel basis. The steel platform is mainly made by the I-steel welding, has further increased the turnover nature, also makes things convenient for the model of in time adjusting relevant steel member according to the model of the tower crane of selecting in the in-service use.

The utility model provides a tower crane steel foundation structure intensity is high, and rigidity is big, and stability is strong, can be applicable to the tower crane foundation form under the multiple condition.

Drawings

Fig. 1 is the utility model discloses an assembled tower crane steel foundation structure schematic diagram.

In the figure: 1-a first section of steel pipe; 2-second section of steel pipe; 3-inner steel tube; 4-basement floor; 5-upper reinforcing steel bars; 6-lower reinforcing steel bars; 7-water stop steel plate; 8-a first stiffener; 9-a second stiffening plate; 10-steel beam bearing platform; 11-node batten plate; 12-a cross brace; 13-inclined strut.

Detailed Description

The invention will be further described with reference to the drawings and the following examples, but the scope of the invention is not limited thereto.

In the description of the present invention, it should be understood that the terms "upper portion", "lower portion", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is merely for convenience of description of the present invention, and thus, cannot be construed as a limitation of the present invention; the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may include, for example, fixed connections, removable connections, or integral connections, direct connections, indirect connections through intervening media, and communication between two elements; the use of the terms "first", "second", etc. are also used to facilitate the description of the present invention; the specific meaning of each term in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, the assembled tower crane steel foundation of the present invention comprises four steel tube columns, the steel tube columns are of a multi-layer structure and are formed by sequentially splicing a plurality of steel tubes from bottom to top, the number of layers of the steel tube columns is N, N is a positive integer, and N is greater than or equal to 2; in this embodiment, preferably, the steel tube column is a two-layer structure formed by splicing a first section of steel tube 1 and a second section of steel tube 2. In actual use, the number of splicing layers of the steel tube stand columns is manufactured according to actual use requirements.

As shown in fig. 1, the lower part of a first section of steel pipe 1 penetrates into a basement bottom plate 4, and an upper steel bar 5 bound to the basement bottom plate 4 is welded with the outer surface of the first section of steel pipe 1; the bottom of the first section of steel pipe 1 is welded with a water stop steel plate 7, and the lower surface of the water stop steel plate 7 is welded with a lower reinforcing steel bar 6 bound with the basement bottom plate 4. In actual use, after the first section of steel pipe 1, the upper steel bar 5, the water stop steel plate 7 and the lower steel bar 6 are all welded in place, concrete is poured, and the first section of steel pipe 1 is stably fixed on the basement bottom plate 4.

As shown in fig. 1, the upper end of a first section of steel pipe 1 is connected with an inner steel pipe 3 through a reserved bolt hole, so that the lower part of the inner steel pipe 3 is positioned inside the first section of steel pipe 1, a second section of steel pipe 2 is sleeved on the periphery of the upper part of the inner steel pipe 3, and the second section of steel pipe 2 is connected with the inner steel pipe 3 and the second section of steel pipe 2 is connected with the first section of steel pipe 1 through bolts; the top of the second section of steel pipe 2 is connected with a steel beam bearing platform 10.

The steel beam bearing platform 10 is a well-shaped bearing platform made of a plurality of H-shaped steel stitch welding, a first stiffening plate 8 is arranged in the steel beam bearing platform 10, a second stiffening plate 9 is arranged at the connecting position of the steel beam bearing platform 10 and the second section of steel pipe 2, a steel structure used for installing a tower crane is arranged at the top of the steel beam bearing platform 10 through bolts, and in practical application, the steel beam bearing platform 10 can transmit tower crane acting force to the basement bottom plate 4 through the first section of steel pipe 1 and the second section of steel pipe 2.

As shown in fig. 1, a steel pipe connected to a steel beam platform 10 is provided with a wale 12, and the wale 12 in this embodiment is specifically provided as follows: and a cross brace 12 is horizontally arranged between every two adjacent second sections of steel pipes 2.

A plurality of inclined struts 13 are arranged between every two adjacent steel pipe stand columns through gusset plates 11, and two ends of each inclined strut 13 are respectively connected with two sections of steel pipes on the adjacent layers of the steel pipe stand columns. In practical application, the number of the inclined struts 13 is determined according to the number of layers of the steel tube column, and in this embodiment, the number of layers of the steel tube column is 2, and the specific settings of the inclined struts 13 are as follows: and an inclined strut 13 is arranged between the first section of steel pipe 1 and the second section of steel pipe 2 which are positioned on the same side. When the number of the steel pipe columns is larger than 2, the number of the inclined struts 13 arranged between every two adjacent steel pipe columns is 2 x (N-1), and the inclined struts 13 which are the same in number and are arranged in a mutually crossed mode are arranged on the steel pipes between the adjacent steel pipe columns.

When the height of the tower crane steel foundation needs to be increased in actual project construction, the corresponding number of steel pipes and the corresponding number of inner steel pipes 3 are sequentially and upwards spliced on the section of steel pipe on the uppermost layer, namely the upper end of the second section of steel pipe 2 until the last section of steel pipe is spliced, so that the height of the tower crane steel foundation meets the use requirement.

In this embodiment, preferably, the steel pipe is a round pipe with a diameter of 500mm and a length of 4m, and the inner steel pipe 3 is a round pipe with a diameter of 450mm and a length of 500 mm; the steel girder platform 10 is made of a Q345b steel plate having a thickness of 20 mm.

The steel pipe stand is made by the concatenation of the multisection steel pipe prefabricated in advance, and in the actual work progress, according to above-mentioned structure, with the help of the crane in proper order with first section steel pipe 1, stagnant water steel sheet 7, second section steel pipe 2, interior steel pipe 3 isotructures installation, in the installation, requires the crane to hang the section steel pipe of the superiors all the time, avoids its atress, helps promoting the installation effect, will guarantee steel pipe stand center accurate positioning simultaneously, the straightness deviation of hanging down is less than or equal to 15 mm. And then installing components such as a cross brace 12, an inclined brace 13, a stiffening plate and the like, and installing components such as a steel beam bearing platform 10, a tower crane and the like to be put into use.

The embodiment is a preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and any obvious improvement, replacement or modification which can be made by those skilled in the art without departing from the essence of the present invention belongs to the protection scope of the present invention.

Claims

1. A novel assembled tower crane steel foundation is characterized by comprising four steel pipe stand columns, wherein the lower ends of the steel pipe stand columns are connected with a basement bottom plate, and the tops of the steel pipe stand columns are connected with a steel beam bearing platform (10); the steel tube stand column is of a multilayer structure formed by sequentially splicing a plurality of sections of steel tubes from bottom to top, wherein two adjacent sections of steel tubes are connected together through bolts, and an inner steel tube (3) is installed inside each steel tube through a bolt.

2. The novel assembled tower crane steel foundation of claim 1, wherein the lower end of the steel tube upright column penetrates into the basement bottom plate (4), and an upper reinforcing steel bar (5) bound on the basement bottom plate (4) is welded with the outer surface of the steel tube upright column; the bottom of the steel pipe upright post is welded with a water stop steel plate (7), and the lower surface of the water stop steel plate (7) is welded with a lower reinforcing steel bar (6) bound with the basement bottom plate (4).

3. The novel assembled tower crane steel foundation of claim 1, wherein the steel pipes connected with the steel beam bearing platform (10) are provided with cross braces (12), and the cross braces (12) are horizontally arranged between two adjacent steel pipes.

4. The novel assembled tower crane steel foundation of claim 1, wherein a plurality of inclined struts (13) are installed between two adjacent steel pipe columns through node batten plates (11), and two ends of each inclined strut (13) are respectively connected with two sections of steel pipes on the adjacent layers of the steel pipe columns; the number of layers of the steel tube stand column is N, N is a positive integer, and N is more than or equal to 2.

5. The novel assembled tower crane steel foundation of claim 4, wherein when the number of the steel tube columns is 2, an inclined strut (13) is installed between each two adjacent steel tube columns.

6. The novel assembled tower crane steel foundation of claim 4, wherein when the number of the steel tube columns is more than 2, the number of the inclined struts (13) arranged between two adjacent steel tube columns is 2 x (N-1); the steel pipes between adjacent layers of the steel pipe upright posts are provided with inclined struts (13) which are the same in quantity and are arranged in a mutually crossed mode.

7. The novel assembled tower crane steel foundation according to claim 1, wherein the steel beam bearing platform (10) is a # -shaped bearing platform made of a plurality of H-shaped steel by stitch welding, a first stiffening plate (8) is arranged in the steel beam bearing platform (10), a second stiffening plate (9) is arranged at the connecting position of the steel beam bearing platform (10) and the steel pipe, and the top of the steel beam bearing platform (10) is provided with a steel structure for installing a tower crane through bolts.

8. The novel assembled tower crane steel foundation of claim 1, wherein the steel pipe is a round pipe with a diameter of 500mm and a length of 4m, and the inner steel pipe (3) is a round pipe with a diameter of 450mm and a length of 500 mm.

9. The new fabricated tower crane steel foundation of claim 1, wherein said steel beam platform 10 is made of Q345b steel plate with a thickness of 20 mm.