Steel structure column foot fixing device capable of being rapidly assembled and disassembled and construction method

Abstract

The invention provides a steel structure column foot fixing device capable of being rapidly assembled and disassembled and a construction method.The device comprises a side supporting frame, a top supporting rod, an expansion piece and a wedge-shaped plug, the two ends of the top supporting rod are connected with the side supporting frame and the expansion piece respectively, the other end of the expansion piece is connected with the wedge-shaped plug, and the wedge-shaped plug is connected with the top supporting rod; and the distance between the wedge-shaped plug and the top supporting rod can be adjusted by stretching out and drawing back the wedge-shaped plug. The column foot fixing device has the beneficial effects that the column foot fixing device is arranged on the periphery of the steel structure column, temporary and surrounding type abutting limiting can be conducted on the steel structure column, due to the fact that the wedge-shaped plug abuts against the steel structure column, the processes of welding, welding removal and the like in the traditional technology are not involved, base metal of the steel structure column can be prevented from being damaged, and the service life of the steel structure column is prolonged. Mounting and dismounting are convenient, and the construction efficiency is high. In addition, the device can be combined with a line cone to be used for controlling the perpendicularity of the steel structure column, and the construction quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure column construction, and in particular to a steel structure column foot fixing device that can be quickly installed and disassembled and a construction method. Background Art

[0002] In the installation of the steel column system of the steel structure workshop of the metallurgical project, the cup foundation is often used. The steel column is temporarily fixed after being inserted into the cup. The temporary fixing parts are removed after the steel beam is installed and the cup concrete is poured. The temporary fixing of the steel column foot is usually done by driving a steel pad into the cup, and temporarily welding and fixing the steel pad to the steel column. This construction method is easy to damage the parent material of the steel column, and the steel pad is difficult to install and remove, which seriously affects the construction efficiency. Summary of the invention

[0003] The object of the present invention is to provide a steel structure column foot fixing device and a construction method that can be quickly installed and disassembled to solve the problems in the above background.

[0004] The technical solution adopted by the present invention is: a steel structure column base fixing device that can be quickly installed and disassembled, which includes: a side support frame, a top support rod, a telescope and a wedge plug, the two ends of the top support rod are respectively connected to the side support frame and the telescope, and the other end of the telescope is connected to the wedge plug, which can be telescoped to adjust the distance between the wedge plug and the top support rod.

[0005] Furthermore, the top support rod is provided with an auxiliary connecting rod, the auxiliary connecting rod is perpendicular to the top support rod, and both ends of the auxiliary connecting rod are respectively provided with detachable connecting blocks, and the connecting blocks are respectively connected to different retractors.

[0006] Furthermore, the connecting block is sleeved on the auxiliary connecting rod and can slide along the axial direction of the auxiliary connecting rod or be fixed by a locking member.

[0007] Furthermore, the side support frame includes a bottom plate and a vertical plate, the bottom plate is fixed to the bottom of the vertical plate, and the vertical plate is sleeved on the top support rod and can slide along the axial direction of the top support rod or be fixed by a second locking member.

[0008] Furthermore, the telescope has a movable end and a fixed end that are relatively positioned, the movable end is connected to the top support rod, and the fixed end is provided with an ear plate parallel to the top surface of the wedge plug, and the ear plate is provided with a connecting hole for passing a connecting piece connecting the wedge plug.

[0009] Furthermore, the wedge-shaped plug includes a plate portion A, a plate portion B and a plate portion C which are connected in sequence, the plate portion A is perpendicular to the plate surface of the plate portion B, and the plate portion C forms an acute angle with the plate surface of the plate portion B.

[0010] Furthermore, a stiffening rib is arranged between the plate portion A and the plate portion C. The stiffening rib is perpendicular to the plate surface of the plate portion B, and a group of opposite side surfaces thereof connect the plate portion A and the plate portion C respectively.

[0011] The technical solution of the present invention also includes: a construction method using the above-mentioned quickly installable steel structure column foot fixing device, which includes the steps of:

[0012] Place the side support frame outside the cup mouth so that the retractor and wedge plug are located above the cup mouth;

[0013] Lift the steel structure column into the cup mouth, extend the telescope to lower the wedge plug, so that the two sides of the wedge plug are pressed against the outer wall of the steel structure column and the inner wall of the cup mouth respectively;

[0014] After the cup mouth concrete is poured, shorten the expansion joint to raise the wedge plug so that the wedge plug is separated from the cup mouth and the steel structure column.

[0015] Furthermore, several groups of the steel structure column foot fixing devices are arranged around the circumference of the steel structure column, a line cone coinciding with the center line of the steel structure column is installed on the inner side of the steel structure column, and the length of the expansion joint in each of the steel structure column foot fixing devices is adjusted to make the line cone vertical.

[0016] The beneficial effects of the present invention are as follows: the column foot fixing device is respectively constructed around the steel structure column, which can temporarily and surroundingly limit the steel structure column to prevent it from tilting. After the steel beam is installed and the cup-mouth concrete is poured, the length of the expansion joint is adjusted to shorten it until the wedge-shaped plug is raised to completely detach from the cup-mouth. Since the wedge-shaped plug is in contact with the steel structure column, it does not involve welding, desoldering and other processes in traditional technology, which can not only avoid damaging the parent material of the steel structure column, but also facilitate installation and disassembly, and has high construction efficiency. In addition, the device can also be used in combination with a wire cone to control the verticality of the steel structure column and improve the construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is an overall structural diagram of an embodiment of the present invention;

[0018] Figure 2 is a top view of an embodiment of the present invention;

[0019] Figure 3 2 is a structural diagram of a wedge-shaped plug in an embodiment of the present invention.

[0020] In the figure:

[0021] 1. Side support frame; 1.1. Bottom plate; 1.2. Vertical plate;

[0022] 2. Top support rod;

[0023] 3. Telescopic device;

[0024] 4. Wedge-shaped plug; 4.1. Plate A; 4.2. Plate B; 4.3. Plate C; 4.4. Stiffening ribs;

[0025] 5. Cup rim;

[0026] 6. Steel structure columns;

[0027] 7. Auxiliary connecting rod;

[0028] 8. Connecting block;

[0029] 9. Locking piece 1;

[0030] 10. Locking piece 2;

[0031] 11. Line cone;

[0032] 12. Install the block;

[0033] 13. Magnetic block. DETAILED DESCRIPTION

[0034] The technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "top", "bottom", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0036] Reference Figure 1-3 The present embodiment provides a quickly installed and disassembled steel structure column base fixing device, which includes: a side support frame 1, a top support rod 2, an expander 3 and a wedge plug 4. The top support rod 2 is horizontally arranged, and its two ends are respectively connected to the side support frame 1 and the expander 3. The end of the expander 3 away from the top support rod 2 is connected to the wedge plug 4. The expander 3 can adjust the distance between the wedge plug 4 and the top support rod 2 by expanding and contracting.

[0037] When using this device, the side support frame 1 is placed on the basis of the outer side of the cup mouth 5, the other end of the top support rod 2 is extended to the top of the cup mouth 5, the expansion joint 3 and the wedge plug 4 are constructed at the position where the top support rod 2 is located above the cup mouth 5, and then the steel structure column 6 is lifted into the cup mouth 5 by using the lifting equipment, and the length of the expansion joint 3 is adjusted to make it extend until the wedge plug 4 falls into the cup mouth 5, and a group of relative side surfaces are respectively pressed against the side wall of the cup mouth 5 and the side wall of the steel structure column 6. By respectively constructing the column foot fixing device around the steel structure column 6, the steel structure column 6 can be temporarily and surround-type pressed and limited to prevent it from tilting. After the steel beam is installed and the concrete of the cup mouth 5 is poured, the length of the expansion joint 3 is adjusted to shorten it until the wedge plug 4 is raised to completely detach from the cup mouth 5. Since the wedge plug 4 is in contact with the steel structure column 6, it does not involve welding, desoldering and other processes in traditional technology, which can not only avoid damage to the parent material of the steel structure column 6, but also facilitate installation and disassembly, and has high construction efficiency.

[0038] In this embodiment, an auxiliary connecting rod 7 is provided on the top support rod 2, and the auxiliary connecting rod 7 is transversely arranged and perpendicular to the top support rod 2. Both ends of the auxiliary connecting rod 7 are respectively arranged with detachable connecting blocks 8, and the connecting blocks 8 are respectively connected to different retractors 3. By adding auxiliary connecting rods 7 and connecting blocks 8, the number of retractors 3 connected to the wedge plug 4 is increased, and the efficiency and stability of the height adjustment of the wedge plug 4 are improved by the synchronous action of multiple groups of retractors 3.

[0039] In order to facilitate the turnover of the device, the present embodiment sleeves the connection block 8 on the auxiliary connecting rod 7 so that it can slide along the axial direction of the auxiliary connecting rod 7 or be fixed by the locking piece 9. When the locking piece 9 is removed, the connection block 8 can be completely separated from the auxiliary connecting rod 7, avoiding the problem that the device occupies too much space and is difficult to rotate when it is fully connected. In addition, the distance between adjacent expansion joints 3 can be changed by sliding the connection block 8, so that multiple groups of expansion joints 3 are evenly distributed on the top of the wedge plug 4 to balance the weight.

[0040] Reference Figure 2The side support frame 1 of this embodiment includes a bottom plate 1.1 and a vertical plate 1.2. The bottom plate 1.1 is fixed to the bottom of the vertical plate 1.2. The vertical plate 1.2 is sleeved on the top support rod 2 and can slide along the axial direction of the top support rod 2, or be fixed by a locking member 10. Bolt holes can be adaptively configured on the bottom plate 1.1 for connecting to the foundation outside the cup mouth 5 to stably deploy the device. The vertical plate 1.2 is used to provide a basic height for the telescope 3 and the wedge plug 4, so that at least when the telescope 3 is in the shortest state, the bottom surface of the wedge plug 4 is higher than the cup mouth 5, so as to facilitate the use and disassembly of the device. The vertical plate 1.2 can slide along the axial direction of the top support rod 2, and can change the distance between the side support frame 1 and the wedge plug 4 to adapt to different working conditions, or adjust the counterweights on both sides of the center of gravity of the top support rod 2 by adjusting the distance to reduce the loss rate of the top support rod 2. Moreover, when the vertical plate 1.2 is sleeved on the top support rod 2, it is surrounded and limited by the vertical plate 1.2. When the other end of the top support rod 2 is subjected to the pulling force generated by the extension and contraction of the telescope 3, the top support rod 2 maintains a horizontal state, so that the top height of the telescope 3 is always fixed, and its extension and contraction can only make the wedge-shaped plug 4 rise and fall with the change of the height of its bottom end.

[0041] The locking member 1 9 and the locking member 2 10 can both be nuts, and external threads can be adaptively configured at the ends of the auxiliary connecting rod 7 and the top support rod 2. The outer diameters of the locking member 1 9 and the locking member 2 10 should be larger than the through hole of the auxiliary connecting rod 7 on the connecting block 8 and the through hole of the top support rod 2 on the vertical plate 1.2. In addition, the connecting block 8 can also be replaced by a steel plate commonly used at a construction site.

[0042] The telescopic device 3 can be selected according to actual use requirements, for example, a cylinder, an electric telescopic rod, a hydraulic rod and other devices can be selected. For the above devices, they all have a movable end and a fixed end in relative positions, the movable end is connected to the top support rod 2, and the fixed end is provided with an ear plate parallel to the top surface of the wedge plug 4, and a connecting hole is opened on the ear plate for passing a connecting piece connected to the wedge plug 4. During implementation, the connecting piece can be a high-strength bolt.

[0043] The wedge plug 4 comprises a plate portion A4.1, a plate portion B4.2 and a plate portion C4.3 which are connected in sequence. The plate portion B4.2 is horizontal, the plate portion A4.1 is perpendicular to the plate surface of the plate portion B4.2, and the plate portion C4.3 forms an acute angle with the plate surface of the plate portion B4.2. Plate portion A4.1 is used to abut the outer wall of the steel structure column 6, and plate portion C4.3 is used to abut the inner wall of the cup mouth 5. Plate portion C4.3 forms an acute angle with the plate surface of plate portion B4.2, so that the device can be applied to a variety of different working conditions. For example, the radial dimensions of the cup mouth 5 and the radial dimensions of the steel structure column 6 may change due to construction requirements. Therefore, the spacing between the side walls of the two is not completely consistent in different working conditions. Plate portion C4.3 is inclined. When the spacing between the cup mouth 5 and the steel structure column 6 is small, the lower part of plate portion C4.3 can be used to abut the inner wall of the cup mouth 5. When the spacing between the cup mouth 5 and the steel structure column 6 is large, the expander 3 can be extended more to make the upper part of plate portion C4.3 abut the inner wall of the cup mouth 5.

[0044] In addition, in this embodiment, a stiffening rib 4.4 is arranged between the plate portion A4.1 and the plate portion C4.3 to improve the structural stability of the wedge plug 4, wherein the stiffening rib 4.4 is perpendicular to the plate surface of the plate portion B4.2, and a set of relative side surfaces thereof respectively connect the plate portion A4.1 and the plate portion C4.3.

[0045] When using this device for construction, the wire cone 11 can be used to assist in adjusting the verticality of the steel structure column 6. For example, when constructing a box-type structure column, a mounting block 12 is constructed at the top of the wire cone 11, and a magnetic block 13 is constructed at the side edge of the mounting block 12. The magnetic block 13 is adsorbed on the inner wall of the box-type structure column so that the wire cone 11 coincides with the center line of the box-type structure column. Then, the box-type structure column is hoisted into the cup mouth 5, and a group of column foot fixing devices are respectively constructed around the outer side of the box-type structure column. By adjusting the degree of expansion and contraction of the expansion devices 3 on each side, the height of the wedge plugs 4 on each side is adjusted, and the contact area between the plate portion C4.3 and the inner wall of the cup mouth 5 is adjusted. It is observed whether the wire cone 11 is vertical, thereby controlling the installation verticality of the box-type structure column.

[0046] Compared with the prior art, the beneficial effect of the present invention is that: the column foot fixing device is respectively constructed around the steel structure column 6, which can temporarily and surroundingly limit the steel structure column 6 to prevent it from tilting. After the steel beam is installed and the cup mouth 5 is poured with concrete, the length of the expansion joint 3 is adjusted to shorten it until the wedge plug 4 is raised to completely separate from the cup mouth 5. Since the wedge plug 4 is in contact with the steel structure column 6, it does not involve welding, desoldering and other processes in traditional technology, which can not only avoid damaging the parent material of the steel structure column 6, but also facilitate installation and disassembly, and has high construction efficiency. In addition, the present device can also be used in combination with the wire cone 11 to control the verticality of the steel structure column 6 and improve the construction quality.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0048] The above are preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A fast-installable steel structure column foot fixing device, characterized in that: include: A side support frame, a top support rod, a telescope and a wedge-shaped plug, wherein the two ends of the top support rod are respectively connected to the side support frame and the telescope, and the other end of the telescope is connected to the wedge-shaped plug and can be telescoped to adjust the distance between the wedge-shaped plug and the top support rod.

2. The fast-installable steel structure column base fixing device according to claim 1 is characterized in that: An auxiliary connecting rod is arranged on the top supporting rod, and the auxiliary connecting rod is perpendicular to the top supporting rod. Both ends of the auxiliary connecting rod are respectively provided with detachable connecting blocks, and the connecting blocks are respectively connected to different retractors.

3. The fast-installable steel structure column base fixing device according to claim 2 is characterized in that: The connecting block is sleeved on the auxiliary connecting rod and can slide along the axial direction of the auxiliary connecting rod or be fixed by a locking piece.

4. The quickly installable and dismantling steel structure column foot fixing device according to any one of claims 1 to 3, characterized in that: The side support frame includes a bottom plate and a vertical plate, wherein the bottom plate is fixed to the bottom of the vertical plate, and the vertical plate is sleeved on the top support rod and can slide along the axial direction of the top support rod or be fixed by a second locking member.

5. The fast-installable steel structure column foot fixing device according to claim 4, characterized in that: The telescope has a movable end and a fixed end that are relatively positioned, the movable end is connected to the top support rod, and the fixed end is provided with an ear plate parallel to the top surface of the wedge plug, and the ear plate is provided with a connecting hole for passing a connecting piece connected to the wedge plug.

6. The fast-installable steel structure column foot fixing device according to any one of claims 1-3 and 5, characterized in that: The wedge-shaped plug includes a plate portion A, a plate portion B and a plate portion C which are connected in sequence. The plate portion A is perpendicular to the plate surface of the plate portion B, and the plate portion C forms an acute angle with the plate surface of the plate portion B.

7. The fast-installable steel structure column base fixing device according to claim 6, characterized in that: A stiffening rib is arranged between the plate portion A and the plate portion C. The stiffening rib is perpendicular to the plate surface of the plate portion B, and a group of opposite side surfaces thereof connect the plate portion A and the plate portion C respectively.

8. A construction method using the quickly installable and dismantling steel structure column foot fixing device according to any one of claims 1 to 7, characterized in that: Includes steps: Place the side support frame outside the cup mouth so that the retractor and wedge plug are located above the cup mouth; Lift the steel structure column into the cup mouth, extend the telescope to lower the wedge plug, so that the two sides of the wedge plug are pressed against the outer wall of the steel structure column and the inner wall of the cup mouth respectively; After the cup mouth concrete is poured, shorten the expansion joint to raise the wedge plug so that the wedge plug is separated from the cup mouth and the steel structure column.

9. The construction method according to claim 8, characterized in that: Several groups of the steel structure column foot fixing devices are arranged around the circumference of the steel structure column, a line cone coinciding with the center line of the steel structure column is installed on the inner side of the steel structure column, and the length of the expansion device in each of the steel structure column foot fixing devices is adjusted to make the line cone vertical.

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