CN216973473U - Embedded foundation bolt type light and heavy tower crane conversion platform - Google Patents
Embedded foundation bolt type light and heavy tower crane conversion platform Download PDFInfo
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- CN216973473U CN216973473U CN202120462326.1U CN202120462326U CN216973473U CN 216973473 U CN216973473 U CN 216973473U CN 202120462326 U CN202120462326 U CN 202120462326U CN 216973473 U CN216973473 U CN 216973473U
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Abstract
The utility model relates to a pre-buried foundation bolt type light and heavy tower crane conversion platform, which comprises a cross-shaped steel platform formed by welding H-shaped steel, wherein an upper support is arranged on the top surface of the cross-shaped steel platform along the cross direction, lower supports are arranged on the bottom surface of the cross direction, each upper support comprises a square pipe, a bolt sleeve and a stiffening plate, the square pipe is vertically welded on an upper flange plate of the H-shaped steel, the stiffening plates are welded between the four side surfaces of the square pipe and the surface of the upper flange plate, and the vertical bolt sleeves are welded at the positions of three vertex angles on the side surface of the square pipe; the lower support comprises a top plate, a bottom plate and two side plates, the two side plates are arranged in parallel at intervals and welded between the top plate and the bottom plate, stiffening ribs are welded between the outer side surfaces of the side plates and the top plate and the bottom plate together, and the bottom plate is provided with bolt connecting holes used for connecting embedded foundation bolts. By means of the structure, the light and heavy tower crane can be converted according to actual construction needs, waste of resources is reduced, construction cost is reduced, and construction efficiency is improved.
Description
Technical Field
The utility model relates to a tower crane for engineering construction, in particular to a pre-embedded foundation bolt type light and heavy tower crane conversion platform.
Background
In recent years, assembly type buildings are continuously made up, and due to the self weight of assembly type components, when the components are hoisted in the construction of the assembly type buildings, a heavy tower crane with large hoisting capacity is generally required to be selected. Considering from the condition of tower crane structure atress, because the hoist and mount weight of heavy tower crane is greater than light tower crane, in order to guarantee the safety of tower crane, the standard festival cross-sectional dimension of heavy tower crane is bigger than light tower crane. In the installation and construction of tower cranes, the tower cranes are generally connected on a concrete foundation through the pre-buried underframe, and the tower cranes with different standard section sizes have different underframe forms. At present, in building construction, most construction units can directly select a heavy tower crane to deal with hoisting of heavy and light members or materials at the same time, but resource allocation to a certain degree is wasted due to the fact that the hoisting is difficult to avoid. In addition, from the market reaction condition, the lease cost of the heavy tower crane is far higher than that of the light tower crane, and the lease of the heavy tower crane is relatively tight. In order to solve the problem, the method that the underframe of a heavy tower crane and the underframe of a light tower crane are embedded in a concrete foundation simultaneously is tried in the prior construction, but during actual operation, embedded ground feet are required to be arranged in a staggered mode at a 45-degree corner relatively, otherwise, the problem of installation interference is easily caused, and when the follow-up tower crane is disassembled, the tower crane is required to be disassembled at a specific corner, so that a crane arm and a balance arm of the tower crane are easily influenced by surrounding buildings, and the risk is brought to the disassembling operation of the tower crane. Therefore, the existing conversion construction scheme of the large and small tower cranes needs to be improved.
Disclosure of Invention
In order to overcome the defects, the utility model aims to provide a pre-embedded foundation bolt type light and heavy tower crane conversion platform for the field, so that the technical problem that the conventional tower crane with large and small specifications is inconvenient to convert and construct is solved. The purpose is realized by the following technical scheme.
A pre-buried foundation bolt type light and heavy tower crane conversion platform comprises a cross-shaped steel platform formed by welding H-shaped steel, wherein the top surface of each H-shaped steel upper wing edge plate on the cross-shaped steel platform in the cross direction is provided with an upper support used for being connected with a light tower crane, the bottom surface of each H-shaped steel lower wing edge plate on the cross direction is provided with a lower support used for being connected with a pre-buried foundation bolt, each upper support comprises a square pipe, a bolt sleeve and a stiffening plate, the square pipe is vertically welded on the H-shaped steel upper wing edge plate, the stiffening plates are welded between four side surfaces of the square pipe and the upper wing edge plate surface, vertical bolt sleeves are welded at three vertex angles of the side surfaces of the square pipe, and sleeve holes of the bolt sleeves are in the same direction as the inner hole of the square pipe; its structural feature lies in the undersetting includes roof, bottom plate and two blocks of curb plates, and two blocks of curb plates are parallel interval and set up and weld between roof and bottom plate, all weld jointly between the lateral surface of each curb plate and roof and the bottom plate and be equipped with stiffening rib, the bottom plate is equipped with and is used for connecting pre-buried rag bolt's bolted connection hole. Through the structure, the light tower crane can be connected through the light tower crane conversion platform of the embedded foundation bolt type on the basis of the heavy tower crane of the embedded foundation bolt type, so that the light tower crane is converted, the light tower crane is converted and used, the heavy tower crane and the light tower crane are reasonably configured according to actual construction needs, the resource waste is effectively reduced, the construction cost is reduced, and the construction efficiency is improved. And the connection between the lower support and the pre-buried foundation bolt is more reliable and stable, and the stability and the strength of the conversion use of the light and heavy tower crane are ensured.
The stiffening plates and the stiffening ribs are right-angled triangles or right-angled trapezoids. Through this structure, improve the structural strength of upper bracket, undersetting, guarantee to connect the reliability.
The parallel direction of the two side plates of the lower support is consistent with the length direction of the H-shaped steel of the corresponding cross-shaped steel platform, and the support range formed by the side plates supporting the top plate covers the projection area range of the upper support perpendicular to the H-shaped steel. Through the structure, the lower support is guaranteed to reliably and stably support the cross-shaped steel platform.
And at least two stiffening ribs which are distributed in parallel at intervals are welded on the outer side surface of the side plate of the lower support. By this structure, the stability of the structural support is further improved.
Bottom plate and roof are the rectangular plate, and the inboard edge of curb plate forms the circular arc transition towards cross steel platform center direction, and the outside limit leans out the formation hypotenuse, and the bottom plate face is equipped with along equipartition all around the bolted connection hole. Through this structure, guarantee structure bulk strength and stability.
The cross-shaped steel platform comprises three H-shaped steels, wherein one H-shaped steel is long, the other two H-shaped steels are short H-shaped steels with equal length, and the two short H-shaped steels are respectively welded on two sides of the long H-shaped steel; and armpit connecting pieces are welded between the upper flange plate edge of the long H-shaped steel and the upper flange plate edge of the short H-shaped steel, and between the lower flange plate edge of the long H-shaped steel and the lower flange plate edge of the short H-shaped steel. Through adding armpit connecting piece, improve the structural strength and the stability of cross steel platform.
And the positions, close to the upper support and the lower support, in the flange groove of the H-shaped steel are both provided with reinforcing rib plates which are arranged at included angles relative to the middle plate of the H-shaped steel, the reinforcing rib plates are fixedly welded with the upper flange plate, the middle plate and the lower flange plate of the H-shaped steel, and the reinforcing rib plates are perpendicular to the upper flange plate and the lower flange plate. Through the reinforcing rib plate, the strength and rigidity of the cross-shaped steel platform to the upper support and the lower support are improved, and the stability and reliability of the support stress are ensured.
All be equipped with the channel-section steel in four contained angle spaces that the cross steel platform formed, a deep floor face welded fastening in each channel-section steel one end and contained angle within range one side H shaped steel edge of a wing recess, a deep floor face welded fastening in each channel-section steel other end and contained angle within range opposite side H shaped steel edge of a wing recess, and enclose into the rectangle form behind four channel-section steels connection cross steel platform. Through add the channel-section steel, further improve the structural stability of cross steel platform.
The tower crane foundation underframe construction method is simple in structure, suitable for mass processing and manufacturing, low in cost compared with the existing pre-buried tower crane foundation underframe with large and small specifications, more convenient to install and construct, capable of guaranteeing safety and reliability of tower crane foundation underframe construction, capable of conveniently and reasonably configuring light and heavy tower cranes to use, capable of reducing resource waste and construction cost, and suitable for being used as a light and heavy tower crane construction conversion section in existing tower crane construction or structural improvement of similar products.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic perspective view of the present invention.
The sequence numbers and names in the figures are: 1. the steel platform comprises a cross-shaped steel platform body, 101 long H-shaped steel, 102 short H-shaped steel, 2 haunch connectors, 3 upper supports, 301 square pipes, 302 stiffening plates, 303 bolt sleeves, 4 lower supports, 401 top plates, 402 side plates, 403 bottom plates, 404 stiffening ribs, 5 stiffening rib plates, 6 channel steel.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the pre-buried foundation bolt type light and heavy tower crane conversion platform comprises a cross-shaped steel platform 1 formed by welding H-shaped steel, wherein the cross-shaped steel platform comprises three pieces of H-shaped steel, one piece of H-shaped steel is long H-shaped steel 101, the other two pieces of H-shaped steel are short H-shaped steel 102 with equal length, the two pieces of H-shaped steel are vertically welded to two sides of the long H-shaped steel respectively, during welding, an upper flange plate and a lower flange plate of the short H-shaped steel are welded with an upper flange plate and a lower flange plate of the long H-shaped steel respectively in a flush manner, and an intermediate plate of the short H-shaped steel extends to be vertically welded with an intermediate plate of the long H-shaped steel. And axillary connecting pieces 2 are welded between the upper flange plate edge of the long H-shaped steel and the upper flange plate edge of the short H-shaped steel, and between the lower flange plate edge of the long H-shaped steel and the lower flange plate edge of the short H-shaped steel.
The cross steel platform is equipped with the upper bracket 3 that is used for connecting light-duty tower crane along the equal welding of the top surface of each H shaped steel upper limb flange board in the cross side, and the bottom surface of each H shaped steel lower limb flange board in the cross side all welds and is equipped with the undersetting 4 that is used for connecting pre-buried rag bolt, and the up end of cross steel platform is equipped with four upper cradles promptly, and the lower terminal surface is equipped with four undersetting. The upper support comprises a square pipe 301, a bolt sleeve 303 and a stiffening plate 302, the square pipe is vertically welded on an upper flange plate of the H-shaped steel, the stiffening plate is welded between four side faces of the square pipe and the upper flange plate face, vertical bolt sleeves are welded at three vertex angles of the side faces of the square pipe, and sleeve holes of the bolt sleeves are consistent with inner hole orientations of the square pipe. The undersetting includes roof 401, bottom plate 403 and two blocks of curb plates 402, roof and bottom plate are the rectangular plate, the inboard edge of curb plate forms the circular arc transition towards cross steel platform center direction, the outside limit leans out and forms the hypotenuse, two blocks of curb plates are parallel interval and set up and weld between roof and bottom plate, all weld jointly between the lateral surface of each curb plate and roof and the bottom plate and be equipped with two piece at least stiffening rib 404 that are interval parallel distribution, the bottom plate face is equipped with the bolted connection hole that is used for connecting pre-buried rag bolt along the equipartition all around. The stiffening plate and the stiffening ribs are right-angled triangles or right-angled trapezoids.
In order to ensure the reliable and stable support of the cross-shaped steel platform 1 by the lower support 4, the parallel direction of the two side plates 402 of the lower support is consistent with the length direction of the H-shaped steel of the corresponding cross-shaped steel platform, and the support range formed by the support of the top plate 401 by the side plates covers the projection area range of the upper support 3 vertical to the H-shaped steel. In order to improve the strength and the rigidity of the cross-shaped steel platform, reinforcing rib plates 5 which are arranged at included angles relative to the middle plate of the H-shaped steel are arranged at positions, close to the upper support 3 and the lower support 4, in the H-shaped steel flange groove of the cross-shaped steel platform 1 and are welded and fixed with the H-shaped steel upper flange plate, the middle plate and the lower flange plate, and the reinforcing rib plates are perpendicular to the upper flange plate and the lower flange plate. All be equipped with channel-section steel 6 in four contained angle spaces that the cross steel platform formed, a deep floor face welded fastening in each channel-section steel one end and contained angle within range one side H shaped steel edge of a wing recess, a deep floor face welded fastening in each channel-section steel other end and contained angle within range opposite side H shaped steel edge of a wing recess, and enclose into the rectangle form behind four channel-section steels connection cross steel platform.
During the use, pass through nut locking connection with the pre-buried rag bolt that corresponds heavy tower crane foundation with the bottom plate 403 of this light and heavy tower crane conversion platform's undersetting 4, and in order to guarantee the levelness of platform installation, do and establish the steel sheet at the pad between bottom plate and pre-buried rag bolt to the realization is adjusted because of the inaccurate levelness deviation that causes of concrete foundation construction. The support position that upper bracket 3 and light-duty tower crane correspond passes through high strength bolt detachable and is connected, can realize the conversion of light and heavy tower crane. After the light tower crane is used and completed, the light tower crane and the light and heavy tower crane conversion platform are disassembled, and then the heavy tower crane can be directly installed on the embedded foundation bolts to perform follow-up construction operation.
The above description is intended to illustrate the technical means of the present invention, and not to limit the technical scope of the present invention. Modifications of the utility model which are obvious to those skilled in the art in view of the prior art are also within the scope of the utility model as claimed.
Claims (5)
1. A pre-buried foundation bolt type light and heavy tower crane conversion platform comprises a cross-shaped steel platform (1) formed by welding H-shaped steel, wherein the top surface of each H-shaped steel upper flange plate of the cross-shaped steel platform along the cross direction is provided with an upper support (3) used for being connected with a light tower crane, the bottom surface of each H-shaped steel lower flange plate along the cross direction is provided with a lower support (4) used for being connected with a pre-buried foundation bolt, each upper support comprises a square pipe (301), a bolt sleeve (303) and a stiffening plate (302), the square pipe is vertically welded on the H-shaped steel upper flange plate, the stiffening plates are welded between four side surfaces of the square pipe and the upper flange plate surface, vertical bolt sleeves are welded at three vertex angles of the side surfaces of the square pipe, and sleeve holes of the bolt sleeves are consistent with the inner hole of the square pipe in orientation; the lower support (4) is characterized by comprising a top plate (401), a bottom plate (403) and two side plates (402), wherein the two side plates are arranged in parallel at intervals and welded between the top plate and the bottom plate, stiffening ribs (404) are welded between the outer side surfaces of the side plates and the top plate and the bottom plate together, and the bottom plate is provided with bolt connecting holes for connecting the embedded foundation bolts; the parallel direction of two side plates (402) of the lower support (4) is consistent with the length direction of the H-shaped steel of the corresponding cross-shaped steel platform (1), and the support range formed by the side plates for supporting the top plate covers the projection area range of the upper support (3) vertical to the H-shaped steel; at least two stiffening ribs which are distributed in parallel at intervals are welded on the lateral outer side surface of the lower support; bottom plate and roof are the rectangular plate, and the inboard edge of curb plate forms the circular arc transition towards cross steel platform center direction, and the outside limit leans out the formation hypotenuse, and the bottom plate face is equipped with along equipartition all around the bolted connection hole.
2. The embedded foundation bolt type light and heavy tower crane conversion platform as claimed in claim 1, wherein the stiffening plates (302) and the stiffening ribs (404) are right-angled triangles or right-angled trapezoids.
3. The embedded foundation bolt type light and heavy tower crane conversion platform according to claim 1, characterized in that the cross-shaped steel platform (1) comprises three H-shaped steels, one of which is a long H-shaped steel (101), and the other two of which are short H-shaped steels (102) with equal length, and the two short H-shaped steels are welded on two sides of the long H-shaped steel respectively; and armpit connecting pieces (2) are welded between the upper flange plate edge of the long H-shaped steel and the upper flange plate edge of the short H-shaped steel and between the lower flange plate edge of the long H-shaped steel and the lower flange plate edge of the short H-shaped steel.
4. The pre-buried foundation bolt type light and heavy tower crane conversion platform according to claim 1 or 3, characterized in that reinforcing rib plates (5) arranged at included angles relative to the middle plate of the H-shaped steel are arranged at positions close to the upper support (3) and the lower support (4) in the flange groove of the H-shaped steel, the reinforcing rib plates are welded and fixed with the upper flange plate, the middle plate and the lower flange plate of the H-shaped steel, and the reinforcing rib plates are perpendicular to the upper flange plate and the lower flange plate.
5. The embedded foundation bolt type light and heavy tower crane conversion platform according to claim 4, characterized in that channel steel (6) is arranged in four included angle spaces formed by the cross-shaped steel platform (1), one end of each channel steel is fixedly welded with a reinforcing rib plate (5) in an H-shaped steel flange groove on one side in an included angle range, the other end of each channel steel is fixedly welded with a reinforcing rib plate in an H-shaped steel flange groove on the other side in the included angle range, and four channel steel are connected with the cross-shaped steel platform and then enclosed into a rectangular shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120462326.1U CN216973473U (en) | 2021-03-03 | 2021-03-03 | Embedded foundation bolt type light and heavy tower crane conversion platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120462326.1U CN216973473U (en) | 2021-03-03 | 2021-03-03 | Embedded foundation bolt type light and heavy tower crane conversion platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216973473U true CN216973473U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120462326.1U Active CN216973473U (en) | 2021-03-03 | 2021-03-03 | Embedded foundation bolt type light and heavy tower crane conversion platform |
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| Country | Link |
|---|---|
| CN (1) | CN216973473U (en) |
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2021
- 2021-03-03 CN CN202120462326.1U patent/CN216973473U/en active Active
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