Steel structure column foot bolt pre-embedding device

Abstract

The invention belongs to the technical field of foundation bolt embedding, and discloses a steel structure column foundation bolt embedding device which comprises a supporting frame installed on a horizontal layer. The channel steel is mounted at the top end of the supporting frame; the cross beams are erected on the channel steel in a rectangular array; the fixer is arranged on the cross beam and is used for vertically hoisting the foot bolt below the fixer; wherein the supporting frame comprises a base and supporting rods, the base is fixed to the horizontal layer through U-shaped buckles, the supporting rods are welded to the four corners of the base, and the base and the supporting rods are welded and reinforced through inclined struts. And the foot bolts are assembled through the fixers on the cross beams. And then a pouring formwork is erected, and a concrete base is poured. In the working procedures, except for welding a frame which is easy to subsequently adjust, other welding work for foot bolts does not need to be carried out. The hidden error danger caused by welding deformation is eliminated, fixation is firm, adjustment is convenient in the assembling process, and the construction efficiency and quality are effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pre-embedded foot bolts, in particular to a pre-embedded device for steel structure column foot bolts. Background Art

[0002] The pre-embedding of the foot bolts of the steel structure is a key construction link to ensure the stability of the steel structure building. For modern steel structure buildings, it plays a vital role in ensuring its stability and construction efficiency. The pre-embedding quality of the foot bolts directly affects the construction efficiency and building quality. At present, the direct embedding method for foot bolts is one of the most commonly used methods. First, the foot bolts are positioned and fixed, and then poured. During positioning, the positioning is carried out by support welding. The bottom of each foot bolt is welded, and the bottom of the foot bolts is connected to form an integral component, and then a bracket is set at the bottom to support it. However, this welding method often requires a certain amount of deformation to be reserved before welding due to the deformation of the elastic modulus or stress of the material after welding, thereby preventing the skew angle from being too large after welding, but this can only play a rough correction effect, which is not accurate. And when multiple foot bolts are welded, the process is cumbersome and the operation is relatively difficult. After an error occurs, the fault tolerance rate is relatively low, and the adjustment is relatively difficult.

[0003] Therefore, the present application proposes a steel structure column base bolt embedding device to overcome the above-mentioned defects. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a bolt embedding device for a steel structure column base.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a bolt embedding device for a steel structure column foot, comprising a support frame, wherein the support frame is installed on a horizontal layer;

[0006] Channel steel, which is installed on the top of the supporting frame;

[0007] The beams are erected on the channel steel in a rectangular array;

[0008] A fixer, which is arranged on the crossbeam and used to vertically hang the foot bolts below it;

[0009] The support frame includes a base fixed on the horizontal layer by a U-shaped buckle, support rods welded to the four corners of the base, and the base and the support rods are reinforced by welding with diagonal braces;

[0010] The foot bolts are pre-installed on each cross beam through a fastener array.

[0011] Preferably, the fixer includes a holder installed on the crossbeam, a right-angle iron slidably installed on the holder, the holder and the right-angle iron are fixed by a bayonet pin, the right-angle iron is straight-through up and down and a shaft sleeve is installed in its through groove, the interior of the shaft sleeve is provided with a rotating wheel and a threaded sleeve that are interconnected, and the bottom end of the threaded sleeve is threadedly connected to the top end of the foot bolt.

[0012] Preferably, a slide rail is provided on the holder, and a slider which is slidably mounted with the slide rail is provided on the right-angle iron.

[0013] Preferably, a fault is provided in the middle of the slide rail, and the latch passes through the wing plate of the right-angle iron, the fault of the slide rail and the wing plate of the socket to be plugged in and fix the right-angle iron and the socket.

[0014] Preferably, the holder is provided with a U-shaped bayonet that is engaged with the crossbeam, a groove is provided in the middle of the crossbeam along the length direction, and the holder is fixed in the groove by bolts.

[0015] Preferably, a rubber pad is provided inside the U-shaped bayonet of the holder.

[0016] Preferably, both ends of the crossbeam are engaged in the square grooves of the channel steel through iron buckles and then fixed to the channel steel through bolts.

[0017] Preferably, a pole spanning all beams is mounted on one of the channel steels via fixing studs.

[0018] Preferably, the crossbeam is evenly provided with scales along its length direction.

[0019] Preferably, a level is installed on the outer side of the channel steel.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention forms an installation frame through a base, a support rod, a diagonal brace and a U-shaped buckle, and then the pre-installed channel steel and the cross beam are tied to the support rod. The foot bolts are assembled by the fixer on the cross beam. Then the casting template is supported, and the concrete base is cast. The casting height of the first layer of concrete base is not above the base of the foot bolt. After the layer of concrete base solidifies, the bottom is separated from the threaded connection part of the foot bolt. After the fixer and the foot bolt are disassembled, the steel wire tied to the channel steel and the support rod is removed, and then the channel steel and the cross beam are removed as a whole. Then the support rod part exposed on the concrete base is cut and removed. The template is supported on the concrete again, and the concrete support layer is cast and waited for it to solidify. In the process, except for welding the frame that is easy to adjust later, no other welding work on the foot bolts is required. The error hidden danger caused by welding deformation is eliminated, and the fixing is firm, which is convenient for assembly and adjustment, and effectively improves construction efficiency and quality.

[0022] The fixture is used to thread and install each foot bolt separately, and the horizontal position of the fixture on the beam is adjustable. When pre-installing the foot bolt, the foot bolt is threaded upward from the lower end of the threaded sleeve, and the installation depth of each foot bolt in the threaded sleeve must be consistent. People in the relevant field can unify the depth distance by setting a limit block or other limiting methods inside the threaded sleeve. The height of the foot bolt is thus confirmed. Later, when disassembling the fixture, the threaded sleeve can be rotated relative to the foot bolt by rotating the wheel so that its thread is detached from the top of the foot bolt to complete the disassembly. The structural design is simple and ingenious, easy to operate, not prone to errors, and significantly improves construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure when the first layer of concrete base is poured in the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the concrete support layer of the present invention when pouring;

[0025] Figure 3 It is a schematic diagram of fixing the foot bolt of the present invention;

[0026] Figure 4 For the present invention Figure 3 A magnified schematic diagram of part A;

[0027] Figure 5 It is a top view of the structure of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the channel steel and the cross beam of the present invention;

[0029] Figure 7 It is a schematic diagram of the structural disassembly of the fastener of the present invention.

[0030] In the figure: 100, support frame; 101, base; 102, support rod; 103, diagonal brace; 104, U-shaped buckle; 200, channel steel; 201, benchmark; 202, fixing stud; 203, bolt; 204, iron buckle; 300, crossbeam; 301, groove; 400, fixer; 401, holder; 4011, slide rail; 4012, rubber pad; 402, right-angle iron; 4021, slider; 403, turntable; 404, bushing; 405, threaded sleeve; 406, bayonet; 500, foot bolt; 600, level. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 7 As shown, the present invention provides a bolt pre-embedded device for a steel structure column foot, comprising a support frame 100, wherein the support frame 100 is installed on a horizontal layer;

[0033] The channel steel 200 is installed on the top of the supporting frame 100;

[0034] The cross beams 300 are arranged in a rectangular array on the channel steel 200;

[0035] A fixer 400 is provided on the cross beam 300 and is used to vertically hang the foot bolt 500 thereunder;

[0036] The support frame 100 includes a base 101 fixed on a horizontal layer by a U-shaped buckle 104, support rods 102 welded to the four corners of the base 101, and the base 101 and the support rods 102 are welded and reinforced by diagonal braces 103;

[0037] The foot bolts 500 are pre-installed on each cross beam 300 through an array of fixers 400 .

[0038] The bottom of the square frame is formed by welding four independent steel bars and is set on the horizontal layer. The bottom of the steel bars is uneven due to deformation caused by stress after welding. The U-shaped buckle 104 is clamped at the end of the base 101 and nailed into the inside of the horizontal layer to level the bottom of the base 101. Then the support rod 102 and the diagonal brace 103 are welded.

[0039] The crossbeam 300 is erected on the channel steel 200, and the channel steel 200 is tied to the top of the support rod 102 by steel wire. The channel steels 200 on both sides are horizontally aligned by measurement and adjustment.

[0040] The foot bolts 500 can be pre-installed on the cross beam 300 through the fixer 400, or assembled after the channel steel 200 and the cross beam 300 are erected. The bottom height of each foot bolt 500 is adjusted to be consistent, and the array is distributed according to the design direction. After completion, the casting template is supported and the concrete base is cast. The casting height of the first layer of concrete base is not above the base of the foot bolt 500, and the diagonal brace 103 is completely submerged. After the concrete base of this layer solidifies, the fixer 400 on the foot bolt 500 is separated from it from the top. The fixer 400 does not need to be completely removed from the cross beam 300, which is too cumbersome. It is only necessary to detach the threaded connection part of its bottom and the foot bolt 500 from this state without affecting the removal of the cross beam 300. After the fixer 400 and the foot bolt 500 are disassembled, the steel wire tied to the channel steel 200 and the support rod 102 is removed, and then the channel steel 200 and the cross beam 300 are removed as a whole. The part of the support rod 102 exposed on the concrete base is then cut and removed. The formwork is propped up again on the concrete, and the concrete support layer is poured and solidified.

[0041] like Figure 1-Figure 7 As shown, the fixer 400 includes a holder 401 mounted on the beam 300, a right-angle iron 402 slidably mounted on the holder 401, the holder 401 and the right-angle iron 402 are fixed by a bayonet 406, the right-angle iron 402 is straight-through up and down and a shaft sleeve 404 is installed in its through groove, the shaft sleeve 404 is provided with a rotating wheel 403 and a threaded sleeve 405 connected to each other, and the bottom end of the threaded sleeve 405 is threadedly connected to the top end of the foot bolt 500.

[0042] The fixing device 400 is used to thread and install each foot bolt 500 respectively, and the horizontal position of the fixing device 400 on the crossbeam 300 is adjustable. When pre-installing the foot bolt 500, the foot bolt 500 is threaded upward from the lower end of the threaded sleeve 405, and the installation depth of each foot bolt 500 in the threaded sleeve 405 must be kept consistent. Personnel in the relevant field can unify the distance of the depth by setting a limit block or other limiting methods inside the threaded sleeve 405. The height of the foot bolt 500 is thus confirmed. When the fixing device 400 is disassembled later, the threaded sleeve 405 can be rotated relative to the foot bolt 500 by rotating the rotating wheel 403 so that its thread is separated from the top of the foot bolt 500, and the disassembly is completed.

[0043] like Figure 4 and Figure 7 As shown, the holder 401 is provided with a slide rail 4011, and the right-angle iron 402 is provided with a slider 4021 slidably mounted with the slide rail 4011.

[0044] The slider 4021 is slidably installed on the slide rail 4011. When the first layer of concrete solidifies, the fixer 400 on the foot bolt 500 can be disassembled. Since the bottom end of the foot bolt 500 has been fixed at this time, the threaded sleeve 405 is adjusted upward relative to the foot bolt 500 by rotating the rotating wheel 403, so that the top thread of the fixer 400 and the foot bolt 500 are disengaged. Each fixer 400 can be adjusted in turn. After all the fixers 400 are removed, the channel steel 200 can be untied from the supporting frame 100, and the channel steel 200, the beam 300 and the fixer 400 can be removed as a whole, and then the secondary pre-embedded casting can be carried out.

[0045] like Figure 4 and Figure 7 As shown, a fault is provided in the middle of the slide rail 4011 , and the latch 406 passes through the wing plate of the right-angle iron 402 , the fault of the slide rail 401 , and the wing plate of the holder 401 to be plugged in and fix the right-angle iron 402 and the holder 401 .

[0046] The assembly height of the right angle iron 402 on the rubber pad 4012 is fixed, which is convenient for uniformly setting the height of each right angle iron 402 to be consistent. When assembling the right angle iron 402, the bayonet 406 is aligned with the through holes on the wing plate of the clamping seat 401 and the right angle iron 402, and the bayonet 406 is inserted to complete the fixation. The fault between the slide rails 4011 is reserved at the horizontal position of the through hole of the wing plate for the bayonet 406 to pass through. The above disassembly and assembly process is quick and convenient, and is suitable for use in unified assembly.

[0047] like Figure 4 , 5 As shown in FIG. 7 , the holder 401 is provided with a U-shaped bayonet that is engaged with the cross beam 300 . A groove 301 is provided in the middle of the cross beam 300 along the length direction. The holder 401 is fixed in the groove 301 by bolts.

[0048] The holder 401 is in an open-loop U-shaped bayonet shape, which is convenient for disassembly or adjustment. The bolt is locked in the groove 301 of the beam 300 from top to bottom. The bottom plate of the U-shaped bayonet is used to clamp and fix the beam 300, and the groove 301 has a good limiting effect. The assembly method is firm and simple, and it is easy to replace, maintain and recycle. It can be quickly assembled during on-site construction, and the portability is improved after disassembly.

[0049] like Figure 7 As shown, a rubber pad 4012 is provided inside the U-shaped bayonet of the holder 401.

[0050] The rubber pad 4012 acts as a cushion layer to reinforce the position of the holder 401 on the beam 300, so that the holder 401 is not easily offset. At the same time, the holder 401 can be firmly fastened to the beam 300 to increase friction.

[0051] like Figure 1 As shown, the two ends of the crossbeam 300 are engaged in the square grooves of the channel steel 200 through iron buckles 204, and then fixed to the channel steel 200 through bolts 203.

[0052] The upper and lower surfaces of the channel steel 200 are provided with hollow strip-shaped square grooves for the cross beam 300 to penetrate and install. The cross beam 300 can adjust its set position on it at will, so as to adjust the spacing between the front and rear rows of foot bolts 500. The iron buckle 204 is engaged in the square groove of the channel steel 200, and is used to initially limit the cross beam 300 to prevent the two ends of the cross beam 300 from being misaligned on the two channel steels 200.

[0053] The iron buckle 204 is welded to the end of the crossbeam 300 .

[0054] like Figure 5 and Figure 6 As shown, a pole 201 spanning all beams 300 is installed on one of the channel steels 200 via a fixing stud 202.

[0055] The reference rod 201 is mainly used for adjusting the position of the beam 300, that is, adjusting the distance between two adjacent beams 300. The straight edge of the beam 300 is used to align the scale, which is convenient and quick to adjust and not easy to miss.

[0056] like Figure 4 and 7 As shown, the crossbeam 300 is uniformly provided with scales along its length direction.

[0057] The scales on the crossbeam 300 are used in the same manner as the reference bar 201, and are used as a reference to adjust the position of the fixture 400 thereon, so that the front and rear fixtures 400 are aligned. The scales on each crossbeam 300 are aligned front to back, and when adjusting, the front and rear alignment can be achieved by moving the fixture 400 to the same scale.

[0058] like Figure 3 As shown, a level 600 is installed on the outer side of the channel steel 200 .

[0059] The crossbeam 300 and the channel steel 200 are fixed as a whole. When assembling, the two sides of the whole are not allowed to be tilted. Therefore, a level 600 is installed on the side of the channel steel 200 to determine whether the two sides are in a horizontal state after installation. If not, horizontal correction is required to ensure that the top and bottom of each foot bolt 500 are in a flush standard state.

[0060] The working principle and use process of the present invention:

[0061] The bottom of the square frame is formed by welding four independent steel bars and is set on the horizontal layer. The bottom of the steel bar after welding is uneven due to stress deformation. The U-shaped buckle 104 is clamped on the end of the base 101 and nailed into the inside of the horizontal layer to level the bottom of the base 101. Then weld the support rod 102 and the diagonal brace 103. The crossbeam 300 is erected on the channel steel 200, and the channel steel 200 is tied to the top of the support rod 102 by steel wire. The horizontal alignment of the channel steels 200 on both sides is adjusted by measurement. The foot bolts 500 can be pre-installed on the crossbeam 300 through the fixer 400, or assembled after the channel steel 200 and the crossbeam 300 are erected. The bottom height of each foot bolt 500 is adjusted to be consistent, and the array is distributed according to the design direction. After completion, the casting template is supported and the concrete base is cast. The first layer of concrete base casting height is not above the base of the foot bolt 500, and the diagonal brace 103 is completely submerged. After the concrete base is solidified, the fixture 400 on the foot bolt 500 is separated from it from above. The fixture 400 does not need to be completely removed from the beam 300, which is too cumbersome. It is only necessary to detach the threaded connection part between the bottom and the foot bolt 500 so as not to affect the removal of the beam 300. After the fixture 400 and the foot bolt 500 are disassembled, the steel wire tied to the channel steel 200 and the support rod 102 is removed, and then the channel steel 200 and the beam 300 are removed as a whole. Then the part of the support rod 102 exposed on the concrete base is cut and removed. The formwork is propped up on the concrete again, and the concrete support layer is poured and waited for it to solidify.

[0062] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0063] 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.

Claims

1. A bolt embedding device for a steel structure column base, characterized in that: It comprises a supporting frame (100), wherein the supporting frame (100) is installed on a horizontal layer; A channel steel (200) is installed on the top of the supporting frame (100); The cross beams (300) are arranged in a rectangular array on the channel steel (200); A fixer (400) is disposed on the crossbeam (300) and is used to vertically hang the foot bolt (500) thereunder; The support frame (100) comprises a base (101) fixed on a horizontal layer by a U-shaped buckle (104), support rods (102) welded to four corners of the base (101), and the base (101) and the support rods (102) are welded and reinforced by diagonal braces (103); The foot bolts (500) are pre-installed on each cross beam (300) through an array of fixers (400).

2. A steel structure column foot bolt embedding device according to claim 1, characterized in that: The fixing device (400) comprises a holder (401) mounted on the crossbeam (300), and a right-angle iron (402) slidably mounted on the holder (401); the holder (401) and the right-angle iron (402) are fixed by a bayonet (406); the right-angle iron (402) is straight-through up and down and a shaft sleeve (404) is installed in its through groove; a rotating wheel (403) and a threaded sleeve (405) connected to each other are arranged inside the shaft sleeve (404); the bottom end of the threaded sleeve (405) is threadedly connected to the top end of the foot bolt (500).

3. A steel structure column foot bolt embedding device according to claim 2, characterized in that: The holder (401) is provided with a slide rail (4011), and the right-angle iron (402) is provided with a slider (4021) which is slidably mounted with the slide rail (4011).

4. A steel structure column foot bolt embedding device according to claim 3, characterized in that: A fault is provided in the middle of the slide rail (4011), and the latch (406) penetrates the wing plate of the right-angle iron (402), the fault of the slide rail (4011) and the wing plate of the holder (401) to be plugged and thereby fix the right-angle iron (402) and the holder (401).

5. A steel structure column foot bolt embedding device according to any one of claims 1 to 4, characterized in that: The clamping seat (401) is provided with a U-shaped clamping socket that is clamped on the crossbeam (300), and a groove (301) is opened in the middle of the crossbeam (300) along the length direction, and the clamping seat (401) is fixed in the groove (301) by bolts.

6. A bolt pre-embedded device for a steel structure column base according to claim 5, characterized in that: A rubber pad (4012) is arranged inside the U-shaped bayonet opening of the bayonet seat (401).

7. A steel structure column foot bolt embedding device according to claim 1, characterized in that: The two ends of the crossbeam (300) are engaged in the square grooves of the channel steel (200) through iron buckles (204), and then fixed to the channel steel (200) through bolts (203).

8. A bolt pre-embedded device for a steel structure column base according to claim 7, characterized in that: A pole (201) spanning all the beams (300) is mounted on one of the channel steels (200) via a fixing stud (202).

9. The steel structure column foot bolt embedding device according to claim 1, characterized in that: The crossbeam (300) is evenly provided with scales along its length direction.

10. The steel structure column foot bolt embedding device according to claim 1, characterized in that: A level (600) is installed on the outer side of the channel steel (200).

Images