CN212671297U - Steel construction uninstallation frock - Google Patents
Steel construction uninstallation frock Download PDFInfo
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- CN212671297U CN212671297U CN202020719462.XU CN202020719462U CN212671297U CN 212671297 U CN212671297 U CN 212671297U CN 202020719462 U CN202020719462 U CN 202020719462U CN 212671297 U CN212671297 U CN 212671297U
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- truss
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Abstract
The utility model provides a pair of steel construction uninstallation frock belongs to construction technical field, include: the top seat is fixed on the support truss and is provided with two top supports which are oppositely arranged, and the top supports and the horizontal plane are arranged at an angle; the upper end of the stroke control mechanism is abutted against the support truss, and the lower end of the stroke control mechanism is fixedly connected with the base; the height of the stroke control mechanism is detachably adjusted; a base adapted to be placed on the body structure; the steel structure unloading tool of the utility model is characterized in that the footstock is provided with two top braces, and the angle between each top brace and the horizontal plane is set according to the placing state of the main structure member and the inclined state of the action surface; the main structure member is better attached to the top support and accurately supported; through right the regulation of stroke control mechanism's height has replaced the regulation of the destructive height of support column, and holistic uninstallation frock can used repeatedly, avoids causing the waste.
Description
Technical Field
The utility model relates to a construction technical field, concretely relates to steel construction uninstallation frock.
Background
In the process of installing a steel structure, the installation and the uninstallation of a large-span and cantilever structure are a key point and a difficulty which are concerned by a plurality of engineering technicians. The more mature method is a temporary supporting and unloading technology. The method comprises the following specific steps: before the main body structure is installed, temporary supporting measures with the elevation meeting the requirements are erected at the subsection position or below the cantilever end; after the support is stable and accepted, hoisting the structure to the support by means of hoisting equipment according to a construction drawing, and resisting the dead weight of the main body structure by the support and keeping the main body structure stable; after the subsection connection construction of the main body structure is completed, grading unloading is carried out according to the design file, so that the main body structure bears the load, the load borne by the support structure is gradually eliminated, and finally the support is separated from the main body structure; and (4) after the main structure is evaluated and confirmed to be safe and stable, the support measures are removed.
At present, a supporting and unloading tool for large-span steel structure construction is formed by simply combining a supporting column and a hydraulic jack. The support column and the jack are fixed at the top of the support measure to transfer the dead weight of the main structure. During construction, the height of the supporting column is gradually reduced by a flame cutting method, and the main structure falls down along with the tool synchronously by matching with the return stroke of the jack, so that the unloading effect is achieved.
However, the cut support post cannot be reused, resulting in waste of material.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming among the prior art the support column after the flame cut can not used repeatedly's defect again to a steel construction uninstallation frock is provided.
The utility model provides a pair of steel construction uninstallation frock, include:
the top seat is fixed on the support truss and is provided with two top supports which are oppositely arranged, and the top supports and the horizontal plane are arranged at an angle;
the upper end of the stroke control mechanism is abutted against the support truss, and the lower end of the stroke control mechanism is fixedly connected with the base; the height of the stroke control mechanism is detachably adjusted;
a base adapted to be placed on the body structure.
Preferably, the method further comprises the following steps:
one end of the guide structure is fixedly connected with the support truss, and the other end of the guide structure is fixedly connected with the base; the guide structures are provided with two groups and are respectively arranged on two sides of the supporting truss.
Preferably, the guide structure includes:
the guide post is fixedly connected with the supporting truss or the base;
the guide cylinder is fixedly connected with the other one of the support truss and the base, and a guide space suitable for accommodating a guide column is formed inside the guide cylinder; the guide cylinder is sleeved on the guide post.
Preferably, the guide structure further includes:
the guide wheels are provided with a plurality of guide wheels and are arranged at the upper end and the lower end of the guide cylinder.
As a preferred scheme, a spherical support is arranged on the top support; the lower end of the spherical support is fixedly connected with the upper surface of the top support, and the upper end of the spherical support is suitable for being abutted to a steel structure.
Preferably, a rubber pad is arranged at the upper end of the spherical support.
Preferably, the stroke control mechanism includes:
the upper end of the jack is suitable for being fixedly connected with the lower end of the supporting truss, and the lower end of the jack is fixed with the base;
and the adjusting and supporting devices are at least provided with two groups and are arranged on two sides of the jack at intervals.
Preferably, the adjusting and supporting device includes:
the adjusting sheet is provided with a plurality of adjusting sheets which are arranged in an overlapping mode;
and at least one support column is detachably connected with the base through a bolt.
Preferably, a triangular plate is arranged between the top support and the supporting truss.
Preferably, the support truss includes:
the upper surface of the upper chord is fixedly connected with the lower end of the top support;
the upper end of the web plate is fixedly connected with the lower surface of the upper chord;
and the upper surface of the lower chord is fixedly connected with the lower end of the web plate, and the lower surface of the lower chord is suitable for abutting against the stroke control mechanism.
The utility model discloses technical scheme has following advantage:
1. the utility model provides a steel structure unloading tool, which comprises a top seat, a stroke control mechanism and a base; the top seat is provided with two top supports which are main stress parts, and the angle formed by the top supports and the horizontal plane is set according to the placing state of the main structural member and the inclined state of the action surface; the main structure member is better attached to the top support and accurately supported; through right the regulation of stroke control mechanism's height has replaced the regulation of the destructive height of support column, and holistic uninstallation frock can used repeatedly, avoids causing the waste.
2. The utility model provides a steel construction uninstallation frock, guide structure includes: a guide post and a guide cylinder; the device plays a role in guiding the descending of the support truss.
3. The utility model provides a steel construction uninstallation frock, guide structure still includes: a guide wheel; when the support truss inclines in the horizontal direction, the inner wall of the guide cylinder contacts with the outer wall of the guide pillar, the arrangement of the guide wheel enables sliding friction of the support truss in the descending process to be changed into rolling friction, unbalanced bending moment and friction force of the contact point are resisted, the guide cylinder is prevented from being clamped, and normal operation of the unloading process is guaranteed.
4. The utility model provides a steel structure unloading tool, a spherical support is arranged on the top support; the spherical support can adjust the direction of the support surface according to the placement state of the main structure member, so that the support surface is perfectly attached to the member.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model discloses a three-dimensional structure chart of steel construction uninstallation frock.
Fig. 2 is a front view of the top chassis shown in fig. 1.
Fig. 3 is a schematic sectional view of the spherical bearing shown in fig. 1.
Fig. 4 is a front view of the support truss shown in fig. 1.
Fig. 5 is a top view of the guide structure shown in fig. 1.
FIG. 6 is a front view of the travel control mechanism shown in FIG. 1.
Fig. 7 is a perspective view of the base shown in fig. 1.
Description of reference numerals:
1. a top seat; 2. supporting the truss; 3. a guide structure; 4. a stroke control mechanism; 5. a base; 6. a body structural member; 7. supporting; 8. a spherical support; 9. a rubber pad; 10. a set square; 11. a box body; 12. A lower support; 13. a ball core; 14. an upper support; 15. a concave steel plate; 16. an upper chord; 17. a web member; 18. A lower chord; 19. a jack; 20. an adjustment sheet; 21. a support pillar; 22. a guide cylinder; 23. a guide post; 24. A guide wheel frame; 25. a guide wheel; 26. a cross beam; 27. a base; 28. a connecting seat.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The steel construction uninstallation frock that this embodiment provided, as shown in fig. 1 for the uninstallation construction between in the large-span structure installation process and the support system, include: the device comprises a top seat 1 with a top support 7, a stroke control mechanism 4, a base 5 and a guide structure 3; the height-adjustable tool replaces a mode of changing the height of the supporting column 21 through flame cutting, and cost is saved.
As shown in fig. 2, the top seat 1 is arranged at the uppermost end of the unloading tool, the top seat 1 is provided with two oppositely arranged top supports 7, the top supports 7 are arranged at an angle with the horizontal plane, and the angle is set according to the placing state of the main structural member 6 and the inclined state of the action plane; the top support 7 is a main bearing member and is formed by processing H-shaped steel, and a stiffening rib is additionally arranged at a part for bearing load.
As shown in fig. 3, the upper end of the top support 7 is provided with a spherical support 8, the spherical support 8 is a steel casting, the spherical support 8 comprises a box body 11, the bottom of the box body 11 is rigidly connected with the top support 7 through a bolt, the top of the box body 11 is connected with a lower support 12 through a sliding assembly, the bottom of the lower support 12 is clamped on the inner side of the box body 11 to prevent the lower support 12 from sliding out, the top of the lower support 12 is connected with a ball core 13, and the lower support 12 and the ball core 13 can slide relatively. The top of the lower support 12 is connected with an upper support 14 through a buffer spring, and a concave steel plate 15 is arranged between the lower support 12 and the upper support 14. The spherical support 8 can adjust the direction of the support surface according to the placement state of the main structure member 6, so that the support surface is perfectly attached to the member.
The rubber pad 9 is adhered to the surface of the upper support 14 of the spherical support 8 through a high-strength adhesive, the rubber pad 9 is made of a flexible material, and the main structural component 6 is in direct contact with the rubber pad 9, so that damage to finished paint on the surface of the component due to rigid contact between the surface of the component and a tool is avoided, and material and labor cost caused by paint coating is reduced;
a triangular plate 10 is arranged between the lower part of the top support 7 and the stroke control mechanism 4, and the triangular plate 10 plays a role in reinforcing and supporting the top support 7.
As shown in fig. 4, the lower end of the top brace 7 is fixedly connected with the upper surface of an upper chord 16 of the support truss 2, a lower chord 18 is arranged at the lower end of the upper chord 16, and a web member 17 is arranged between the upper chord 16 and the lower chord 18; the upper chord 16, the lower chord 18 and the web members 17 are all made of H-shaped steel, and stiffening ribs are additionally arranged in the node area; the support truss is mainly used for transferring the self weight of the structure and bearing the load during the whole unloading process; the support truss formed by the upper chord 16, the lower chord 18 and the web members 17 can withstand higher loads than a single support cross member 26 formed from steel sections.
As shown in fig. 5, two sides of the supporting truss 2 are respectively fixedly connected with a guiding structure 3, the guiding structure 3 includes a guiding cylinder 22, the guiding cylinder 22 is made of steel with a rectangular cross section, a guiding column 23 is arranged inside the guiding cylinder 22, and a certain interval is formed between the inner wall of the guiding cylinder 22 and the outer wall of the guiding column 23;
the lower end of the guide post 23 is fixedly connected with the upper surface of the base 5, a guide wheel frame 24 is arranged at the corner position of the inner surfaces of the upper end and the lower end of the guide cylinder 22, and a guide wheel 25 is arranged on the guide wheel frame 24; the guide cylinder 22 descends along with the descending of the support truss in the unloading process, and when the support truss descends in a vertical direction in a uniform sliding mode, the guide wheel 25 of the guide cylinder 22 is not in contact with the outer wall of the guide column 23; when the support truss inclines in the horizontal direction, the inner wall of the guide cylinder 22 is in contact with the outer wall of the guide post 23, and the arrangement of the guide wheel 25 enables sliding friction of the support truss in the descending process to be changed into rolling friction, so that unbalanced bending moment and friction force of the contact point are resisted, the guide cylinder 22 is prevented from being blocked, and normal unloading process is guaranteed.
Alternatively, the guide cylinder 22 and the guide post 23 may be machined from round steel.
As shown in fig. 6, a stroke control mechanism 4 is arranged between the support truss and the base 5, and the stroke control mechanism comprises a jack 19 and adjusting support devices arranged on two sides of the jack 19; each adjusting and supporting device is provided with a plurality of supporting columns 21 and adjusting sheets, the adjusting sheet 20 is a steel plate, the supporting columns 21 are H-shaped steel, the elevation of the top base 1 is controlled by increasing or decreasing the number of the supporting columns 21 and the adjusting sheets 20, and the adjusting sheets 20 and the supporting columns 21 are also arranged at the lower end of the jack 19; the supporting column 21 and the supporting column 21, and the supporting column 21 and the base 5 are detachably fixed through bolts.
By adjusting the number of the support columns 21 and the adjusting sheets 20, the stroke control mechanism 4 of the unloading tool can realize the unloading of an overlarge stroke, and the unloading range is expanded to a considerable extent. In addition, the supporting columns 21 are connected through bolts, the vertical columns do not need to be cut in the whole process, all parts can be recycled, and the green construction concept of energy conservation, environmental protection, cost reduction and efficiency improvement is embodied.
The base 5 consists of a cross beam 26, a base 27 and a connecting seat 28; the cross member 26 and the base 27 are welded as a unit and bolted to the connecting block 28. The connecting base 28 is rigidly connected to the lower body structure by bolts; the beam 26 and the base 27 are both H-shaped steel, and a stiffening plate is additionally arranged at the stressed position. The purpose of the base 27 is to resist bending moments at the bottom of the connecting socket 28 and to enhance the resistance to overturning during operation.
Method of use and principles
1. Fixing a base 5 of the unloading tool on a main body structure, pressurizing a jack 19 to jack the structure, enabling an initial pressure value to meet the specification of an unloading technical file, and observing the distance between a support truss and the top end of a side upright;
2. after the support truss is separated from the side upright posts, locking the jack 19, removing the adjusting plate or/and the support post 21 according to the size of the graded unloading amount, and loosening the connecting bolt on the support post 21 before removing the support post;
3. slowly opening the oil drain valve of the jack 19, enabling the main structural member 6 to fall along with the supporting truss, enabling the falling height to meet the unloading amount specified by the unloading technical file, and closing the oil drain valve to stop unloading;
4. adjusting the distance between the support device and the support truss by reducing the support columns 21 or increasing or decreasing the adjusting sheets 20 according to the unloading amount of the next step;
5. when the accumulated unloading amount is about to exceed the maximum stroke of the jack 19, slowly releasing the pressure of the jack 19 to drop the support truss on the support adjusting device, and bearing the upper load by the support adjusting device; the distance between the jack 19 and the supporting truss is adjusted by increasing or decreasing the adjusting sheets below the jack 19 or decreasing the supporting columns 21 below the jack, and the stroke of the jack 19 is recovered.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (10)
1. The utility model provides a steel construction uninstallation frock which characterized in that includes:
the top seat (1) is fixed on the support truss (2) and is provided with two top supports (7) which are oppositely arranged, and the top supports (7) are arranged at an angle with the horizontal plane;
the upper end of the stroke control mechanism is abutted against the supporting truss (2), and the lower end of the stroke control mechanism is fixedly connected with the base (5); the height of the stroke control mechanism is detachably adjusted;
a base (5) adapted to be placed on the body structure.
2. The steel structure unloading tool according to claim 1, further comprising:
one end of the guide structure is fixedly connected with the support truss (2), and the other end of the guide structure is fixedly connected with the base (5); the guide structures are provided with two groups and are respectively arranged on two sides of the supporting truss.
3. The steel structure unloading tool according to claim 2, wherein the guide structure comprises:
the guide column is fixedly connected with the supporting truss (2) or the base (5);
a guide cylinder (22) fixedly connected with the other one of the support truss (2) or the base (5), wherein the guide cylinder (22) is internally provided with a guide space suitable for accommodating a guide column; the guide cylinder (22) is sleeved on the guide post.
4. The steel structure unloading tool according to claim 3, wherein the guide structure further comprises:
and a plurality of guide wheels (25) arranged at the upper end and the lower end of the guide cylinder (22).
5. The steel structure unloading tool according to any one of claims 1-4, wherein a spherical support (8) is arranged on the top brace (7); the lower end of the spherical support (8) is fixedly connected with the upper surface of the top support (7), and the upper end of the spherical support (8) is suitable for being abutted to a steel structure.
6. The steel structure unloading tool according to claim 5, wherein a rubber pad (9) is arranged at the upper end of the spherical support (8).
7. The steel structure unloading tool according to any one of claims 1-4 or 6, wherein the stroke control mechanism comprises:
the upper end of the jack (19) is suitable for being fixedly connected with the lower end of the supporting truss, and the lower end of the jack is fixed with the base (5);
the adjusting and supporting devices are at least two groups and are arranged on two sides of the jack (19) at intervals.
8. The steel structure unloading tool according to claim 7, wherein the adjusting and supporting device comprises:
a plurality of adjusting sheets (20) which are arranged in an overlapping way;
and at least one support column (21) detachably connected with the base (5) through bolts.
9. The steel structure unloading tool according to claim 1, wherein a triangular plate (10) is arranged between the top brace (7) and the support truss.
10. The steel structure unloading tool according to claim 1, wherein the support truss comprises:
the upper surface of the upper chord (16) is fixedly connected with the lower end of the top support (7);
the upper end of the web plate is fixedly connected with the lower surface of the upper chord (16);
and the upper surface of the lower chord (18) is fixedly connected with the lower end of the web plate, and the lower surface of the lower chord is suitable for abutting against the stroke control mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020719462.XU CN212671297U (en) | 2020-04-30 | 2020-04-30 | Steel construction uninstallation frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020719462.XU CN212671297U (en) | 2020-04-30 | 2020-04-30 | Steel construction uninstallation frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212671297U true CN212671297U (en) | 2021-03-09 |
Family
ID=74814225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020719462.XU Active CN212671297U (en) | 2020-04-30 | 2020-04-30 | Steel construction uninstallation frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212671297U (en) |
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2020
- 2020-04-30 CN CN202020719462.XU patent/CN212671297U/en active Active
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