CN113585079B - Method for quickly installing steel structure stand column - Google Patents
Method for quickly installing steel structure stand column Download PDFInfo
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- CN113585079B CN113585079B CN202110866672.0A CN202110866672A CN113585079B CN 113585079 B CN113585079 B CN 113585079B CN 202110866672 A CN202110866672 A CN 202110866672A CN 113585079 B CN113585079 B CN 113585079B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/32—Columns; Pillars; Struts of metal
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
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Abstract
The invention discloses a method for quickly installing a steel structure upright post, which comprises the steps of respectively adjusting the verticality and the elevation of the steel upright post in four directions through four groups of jacks and clamps, fixing the steel upright post and a bearing platform by utilizing a positioning nut to match with a positioning stud pre-embedded on the bearing platform after the verticality and the elevation of the steel upright post are adjusted in place, and pouring concrete in a gap between a bottom plate of the steel upright post and the bearing platform for joint filling treatment to finish the hoisting of the steel upright post. Whole operation process is simple high-efficient, has not only improved steel stand straightness and steel stand elevation's correction efficiency and hoist and mount efficiency, reduces the time that occupies the crane moreover, very big improvement mechanical utilization ratio for the construction progress has reduced the hoist and mount cost.
Description
Technical Field
The invention relates to the technical field of upright post hoisting, in particular to a method for quickly installing a steel structure upright post.
Background
In the construction process of bridges and buildings, a plurality of steel structure upright posts are required to be erected as support pillars. Present steel construction stand needs in the installation, subaerial preparation cushion cap in advance, then adopts the mode of hoist and mount to hoist the steel construction stand on the cushion cap, has buried the locating stud underground in advance on the cushion cap, and the one end of steel construction stand is provided with the bottom plate, sets up the locating hole that supplies the locating stud to pass on the bottom plate, stands back on the cushion cap as the steel construction stand, and the rethread screws up the locating nut with fixed steel construction stand.
After the bearing platform is cast and formed, the height of the bearing platform has errors, and the surface of the bearing platform is not smooth, so that the verticality and the height of the steel structure upright post after installation need to be corrected in the process of hoisting the upright post, and the subsequent bridge section or building construction is facilitated.
The existing method for correcting the perpendicularity and the height of the steel structure stand column is to lift the stand column by using a crane and then correct, so that the fine adjustment time is long, and the efficiency is low.
Disclosure of Invention
In order to improve the hoisting efficiency of the steel structure steel upright column, the application provides a method for quickly installing the steel structure upright column.
The application provides a method for installing steel structure stand fast adopts following technical scheme:
a method for quickly installing a steel structure upright column comprises the following steps:
s1, preparation work before hoisting of the steel upright column is carried out, and the preparation work comprises the following steps:
s11, performing chiseling treatment on the middle part of the bearing platform, wherein the shape of a chiseling area is consistent with that of the steel upright column bottom plate;
s12, preparing four groups of correction assemblies, wherein each correction assembly comprises a jack and a fixture;
s2, hoisting the steel upright column, which comprises the following steps:
s21, lifting the steel upright column by using a crane, enabling a base plate of the steel upright column to be sleeved on positioning studs pre-embedded on a bearing platform, respectively arranging four groups of correction assemblies around the steel upright column, clamping a fixture on the base plate of the steel upright column, and supporting the steel upright column by a jack through a jacking fixture;
s22, unhooking the crane, and hoisting the next steel upright;
s3, correcting the steel upright post;
and S4, performing gap filling treatment.
Through adopting above-mentioned technical scheme, after the crane hoists the steel stand and places the steel stand on four fixtures, the jack plays the support steel stand through jacking fixture to make the crane unhook in advance and carry out the hoist and mount of next steel stand, reduce the time that occupies the crane, very big improvement mechanical utilization, when having accelerated the construction progress, reduced the hoist and mount cost. And when the perpendicularity of the support column deviates, the corresponding jack can be adjusted to jack or lower the fixture, and the perpendicularity correction of the support column can be completed. When the elevation of support column deviates, piston rods of four controllable jacks ascend or descend by the same height, the correction of the elevation of the steel stand column can be completed, the whole operation process is simple and efficient, and the installation efficiency of the steel stand column can be obviously improved. After finishing correcting the verticality or elevation of the steel upright, pouring concrete between the bottom plate of the steel upright and the bearing platform for joint filling treatment, so that the steel upright is stably installed on the bearing platform, and then removing the correcting assembly. And the middle part of the bearing platform is roughened in advance, so that the bonding strength between the subsequently poured concrete and the bearing platform is improved.
Preferably, the clamping apparatus is a steel plate arranged in an L shape, and one end of the steel plate is provided with a clamping groove for inserting the bottom plate.
Through adopting above-mentioned technical scheme, when needing to be connected four groups of correction subassemblies and steel stand, open the steel sheet and have draw-in groove department joint on the bottom plate of steel stand, then with the other end overlap joint of steel sheet on the top of jack, the jack passes through the jacking steel sheet in order to support the steel stand. Because of the existence of the steel plate, under the condition that the clearance between the bottom plate of the steel upright post and the bearing platform is smaller so as to ensure the stability of the steel upright post, the jack can still jack the steel upright post so as to correct the deviation of the verticality and elevation of the steel upright post.
Preferably, S3 comprises the steps of:
s31, preparing two magnetic plumbs, and respectively installing the two magnetic plumbs on the adjacent surfaces of the top ends of the steel upright posts;
s32, after the hammer body of the magnetic plumb bob is still, selecting a plurality of measuring points along the length direction of the suspension wire, respectively measuring the distances between the measuring points and the lateral surface of the plumb bob, if the distances are unequal, adjusting the jacks in corresponding directions, and then repeatedly measuring until the distances between the measuring points and the lateral surface of the plumb bob are equal;
and S33, measuring the height of the installed steel upright column by using a level gauge, and if the height of the steel upright column is not equal to the elevation, controlling the piston rods of the four jacks to ascend or descend by the same height until the height of the steel upright column is equal to the elevation.
Through adopting above-mentioned technical scheme, easy operation is high-efficient, can accomplish the straightness or the correction of elevation of hanging down to the steel stand fast to improve the installation effectiveness of steel stand.
Preferably, S4 comprises the steps of:
s41, removing the magnetic plumb bob;
s42, measuring the distance between the bottom plate and the bearing platform, manufacturing a cushion block, plugging the cushion block into a gap between the bottom plate and the bearing platform, loosening a steel plate below the jack, and then taking out the steel plate;
s43, building a pouring platform on the bearing platform, wherein the pouring platform is formed by connecting a plurality of templates end to end, and the pouring platform is arranged around the periphery of the steel stand column;
s44, extending a grouting pipe connected with a grouting machine into a gap between the bottom plate and the bearing platform for grouting until concrete slurry overflows out of the pouring platform.
Through adopting above-mentioned technical scheme, when carrying out the processing of caulking, the steel sheet has been liberated as the supporter that supports the steel construction to the cushion for the correction subassembly can be used for in the installation of other steel stands. Simultaneously, the slip casting pipe stretches into and begins the slip casting in the space between bottom plate and the cushion cap for concrete slurry can fill up the chisel hair region in the very first time, thereby is favorable to strengthening the joint strength of steel stand and cushion cap. And the construction of the pouring platform can effectively prevent concrete grout from flowing outwards, thereby reducing waste.
Preferably, the fixture comprises a base, a rotating rod is rotatably connected to the base, a connecting rod is fixedly connected to the rotating rod perpendicularly, a screw rod is fixedly connected to one end, away from the rotating rod, of the connecting rod perpendicularly, a supporting plate and a fixing strip are perpendicularly connected to one end, away from the connecting rod, of the screw rod, the upper surfaces of the supporting plate and the fixing strip are flush, the supporting plate and the fixing strip are symmetrically distributed on the peripheral surface of the screw rod, a bubble level meter is installed on the fixing strip, and the bubble level meter is placed along the length direction of the supporting plate.
Preferably, the screw rod is sleeved with a sliding block in a sliding mode, the sliding block can rotate relative to the screw rod, the screw rod is connected with a locking nut in a threaded mode, and the locking nut is located between the sliding block and the connecting rod.
Preferably, a step S20 is added to S2, which includes the following steps:
s201, placing the four groups of correction assemblies at the periphery of a scabbling area, observing the positions of bubbles on a bubble level meter, if the bubbles are not in the middle, rotating a rotating rod in a corresponding direction until the bubbles are in the middle, and then locking the rotating rod to limit the rotation of the rotating rod;
s202, whether the upper surfaces of the four supporting plates are located on the same plane or not is detected through the ruler, and if the upper surfaces of the four supporting plates are not located on the same plane, the heights of the supporting plates are adjusted through the jacks until the upper surfaces of the four supporting plates are located on the same plane.
Through adopting above-mentioned technical scheme, rotate the bull stick and whether lie in the middle part through observing the bubble in the bubble spirit level and revise the levelness of backup pad upper surface, then whether the upper surface of revising four backup pads through ruler cooperation revise the subassembly is in the coplanar, carries out the hoist and mount of steel stand again, also can accomplish the straightness's that hangs down to the steel stand correction. Compared with a mode of correcting the perpendicularity of the steel stand column by matching the magnetic plumb bob with the correcting component, the method has the advantages that the influence of external factors such as wind power does not exist, the time for dismounting the magnetic plumb bob and waiting for the hammer body of the magnetic plumb bob to stop swinging is saved, and the correcting efficiency of the perpendicularity of the steel stand column is obviously improved.
Preferably, in S21, the steel column is lifted by a crane, the sliding block is rotated to be positioned above the fixing strip, and then the steel column is placed on the four supporting plates by the crane; and then, the sliding block is rotated to enable the sliding block to be positioned above the supporting plate, the locking nut is screwed down to enable the sliding block and the supporting plate to clamp the bottom plate of the steel upright post, and the jack is used for jacking the steel upright post through the jacking base.
Through adopting above-mentioned technical scheme, when needs are connected fixture and steel stand bottom plate, rotate the slider earlier so that the slider is located the top of fixed strip to the convenience is placed the steel stand in the backup pad, so that liberate the crane as early as possible, then rotate the slider again and make its top that is located the backup pad and screw up lock nut, so that slider and backup pad press from both sides the bottom plate tightly, with the stability of being connected of reinforcing fixture and bottom plate. Simultaneously, because of the slider is portable for the screw rod to can be suitable for the installation of different steel stands, improved fixture's suitability.
Preferably, in S3, the elevation of the steel column is corrected by the leveling instrument in cooperation with the four sets of correction assemblies.
By adopting the technical scheme, the perpendicularity of the steel stand column is corrected in the step S20, so that only the elevation of the steel stand column needs to be corrected.
Preferably, S4 comprises the steps of:
s41, building a pouring platform, wherein the supporting plates are detachably connected with the screw rod, slots are respectively recessed in a pair of side walls, adjacent to the screw rod, of the supporting plates, baffles are arranged between every two adjacent supporting plates and are inserted between every two adjacent slots, a connecting plate is fixedly connected between every two adjacent baffles and is located below the supporting plates, and gaps between the supporting plates and the bearing platform are shielded by the connecting plates;
s42, extending a grouting pipe connected with a grouting machine into a gap between the bottom plate and the bearing platform for grouting until concrete slurry overflows out of the pouring platform;
and S43, after the concrete is formed, separating the support plate from the screw rod to complete the installation of the steel upright post.
Through adopting above-mentioned technical scheme, when carrying out the processing of caulking, peg graft the baffle in two adjacent slots, the slot plays the pre-fixing effect to the baffle, easy to assemble baffle. And then connecting two adjacent baffles through the connecting plate and shielding the gap between the supporting plate and the bearing platform, thus completing the construction of the pouring model. The slip casting pipe stretches into and begins the slip casting in the space between bottom plate and the cushion cap for the concrete thick liquid can fill up the chisel hair region the very first time, thereby is favorable to strengthening the joint strength of steel stand and cushion cap. And after the concrete slurry overflows out of the pouring model, waiting for the concrete to be solidified and molded, and then separating the support plate from the screw. Compared with the mode of inserting the cushion blocks in the gaps between the bottom plate and the bearing platform for joint filling, the time for preparing the cushion blocks is saved. And moreover, the supporting plate is not taken out, the problem that fine deviation occurs to the perpendicularity or elevation of the steel stand column due to cushion block manufacturing errors does not exist, and correction precision is higher.
Drawings
FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;
FIG. 2 is a schematic view showing the structure of a jig according to embodiment 1 of the present application;
FIG. 3 is a schematic view showing a structure of caulking in example 1 of the present application;
FIG. 4 is a schematic structural view of a correcting member in embodiment 2 of the present application;
FIG. 5 is a schematic view of the overall structure of embodiment 2 of the present application;
FIG. 6 is a schematic view showing the structure of the caulking process in example 2 of the present application;
fig. 7 is an enlarged schematic view of a in fig. 6 of the present application.
Description of the reference numerals:
1. a bearing platform; 2. a steel upright post; 3. a jack; 4. a steel plate; 5. a card slot; 6. a hoisting ring; 7. positioning a stud; 8. a base plate; 9. a base plate; 10. a magnetic plumb bob; 11. positioning a nut; 12. cushion blocks; 13. a template; 14. a grouting port; 15. a base; 16. a positioning tube; 17. a bump; 18. a rotating rod; 19. fixing a nut; 20. a connecting rod; 21. a screw; 22. a slider; 23. locking the nut; 24. a support plate; 25. a fixing strip; 26. a bubble level; 27. a slot; 28. a baffle plate; 29. a connecting plate; 30. and (6) pouring holes.
Detailed Description
The present application is described in further detail below with reference to figures 1-7.
Example 1
The embodiment of the application discloses a method for quickly installing a steel structure upright post. Which comprises the following steps:
s1, referring to fig. 1 and 2, performing preparation work before hoisting of the steel column 2, specifically:
and S11, performing scabbling treatment on the middle part of the bearing platform 1 by using a scabbling machine, wherein the shape of a scabbling area is consistent with the shape of the bottom plate 8 of the steel upright 2.
S12, preparing four groups of correction assemblies, wherein each correction assembly comprises a jack 3 and a fixture, the fixture is a steel plate 4 with the plate thickness of 25mm, the steel plate 4 is arranged in an L shape, one end of each correction fixture is provided with a clamping groove 5, and the width of a groove of each clamping groove 5 is slightly larger than the thickness of a bottom plate 8 of each steel upright 2;
s2, referring to the figures 1 and 2, hoisting the steel upright 2, specifically:
s21, the steel upright post 2 is lifted by the crane, the lifting hook of the crane adopts a lifting hook with an automatic unhooking function, the crane lifts the steel upright post 2 after hooking the lifting hook on the lifting ring 6 of the steel upright post 2, and the swing arm of the crane rotates until the steel upright post 2 is conveyed to be positioned above the bearing platform 1. And (3) finely adjusting the swing arm to enable the through hole on the bottom plate 8 of the steel upright 2 to be aligned with the positioning stud 7 on the bearing platform 1, and gradually lowering the steel upright 2. Four groups of correction assemblies are arranged around the steel upright post 2, the steel plate 4 is clamped on a bottom plate 8 of the steel upright post 2, a backing plate 9 is arranged on the ground, and the jack 3 is arranged on the backing plate 9 to prevent local deformation of the ground. The jack 3 supports the steel column 2 by jacking up the steel plate 4.
S22, unhooking the crane, and hoisting the next steel upright 2.
S3, referring to fig. 1 and 2, correcting the steel column 2, specifically:
s31, preparing two magnetic plumbs 10, and installing the line boxes of the two magnetic plumbs 10 on the adjacent surfaces of the top ends of the steel upright posts 2. Specifically, establish positioning nut 11 cover on positioning stud 7 and screw up to fix steel column 2 on cushion cap 1, stop the cat ladder on steel column 2, the staff climbs to being close to steel column 2 upper end through the cat ladder, then with the line box be provided with one side of magnet and paste steel column 2 tightly, the line box is automatic to be adsorbed on steel column 2, the hammer block of magnetism plumb bob 10 is then automatic flagging.
S32, after the worker gets off, the positioning screw cap 11 is unscrewed. After the hammer body of the magnetic plumb bob 10 is still, three measuring points are selected along the length direction of the suspension wire, the distances between the three measuring points and the lateral surface of the quilt are respectively measured, if the distances are equal, the lateral surface of the quilt is vertical, and if the distances are gradually reduced or gradually increased, the lateral surface of the quilt is inclined, the distances between the three measuring points and the lateral surface of the quilt are repeatedly measured by adjusting the jacks 3 in corresponding directions until the distances between the three measuring points and the lateral surface of the quilt are equal. And after the adjacent surfaces of the steel upright posts 2 are all adjusted to be vertical, finishing the correction of the verticality of the upright posts.
And S33, measuring the height of the steel upright post 2 after installation by adopting a level gauge, and if the height of the steel upright post 2 after installation is not equal to the set height, adjusting the piston rods of the four jacks 3 to rise or fall by the same height according to the data measured by the level gauge until the height of the steel upright post 2 is equal to the elevation, and finishing the correction of the elevation of the steel upright post 2.
And S34, after the leveling and the height adjustment of the steel upright post 2 are completed, screwing down the positioning screw cap 11 to fix the steel upright post 2.
S4, referring to fig. 1 and 3, the caulking process specifically includes:
and S41, the worker climbs to the top end of the steel upright 2 through the crawling ladder again and then detaches the magnetic plumb bob 10.
S42, measuring the distance between the bottom plate 8 and the bearing platform 1 by using a ruler, manufacturing a cushion block 12 on site, plugging the cushion block 12 into a gap between the bottom plate 8 and the bearing platform 1, loosening the steel plate 4 below the jack 3, and taking out the steel plate 4.
S43, building a pouring platform on the bearing platform 1, wherein the pouring platform is formed by surrounding four templates 13, the four templates 13 are surrounded on the periphery of the steel upright post 2, and the two adjacent templates 13 are fixed through screws.
And S44, one of the templates 13 is provided with a grouting port 14, and the grouting port 14 penetrates through one side, abutted against the bearing platform 1, of the template 13. And (3) extending a grouting pipe connected with a grouting machine into a gap between the bottom plate 8 and the bearing platform 1 from the grouting port 14 for grouting, taking out the grouting pipe and plugging the grouting port 14 after concrete grout overflows from the pouring platform, and troweling to finish the installation of the steel stand column 2.
The implementation principle of the embodiment 1 is as follows:
in the field construction process of the method, a positioning screw cap 11 is matched with a positioning stud 7 pre-embedded on a bearing platform 1 to serve as a supporting point for temporarily fixing the steel upright 2, so that a magnetic plumb bob 10 is installed in the subsequent process, and the perpendicularity of the steel upright 2 is detected through the magnetic plumb bob 10. If the perpendicularity of the steel upright post 2 deviates, the perpendicularity of the steel upright post 2 is adjusted through the four groups of correction assemblies, after the adjustment is in place, the elevation of the steel upright post 2 is corrected through the correction assemblies and a level gauge, and finally the cushion block 12 is arranged and base layer concrete is poured to fix the steel upright post 2. The operation is simple and convenient, and the debugging precision of the steel upright post 2 is greatly improved. In the correction process, the steel upright post 2 is not required to be always hung by a crane, so that the time for taking up the crane is reduced, the mechanical utilization rate is greatly improved, the construction progress is accelerated, the hoisting cost is reduced, and the construction period target of the steel structure construction node is ensured.
Example 2
Example 2 differs from example 1 in that:
referring to fig. 4, the fixture includes a base 15, a positioning tube 16 is fixedly connected to one side of the base 15, and a piston rod of the jack 3 is in plug-in fit with the positioning tube 16. Two opposite lugs 17 are convexly arranged on one side of the base 15 adjacent to the positioning tube 16, a rotating rod 18 penetrates between the two lugs 17, two ends of the rotating rod 18 respectively penetrate through the two lugs 17, and the rotating rod 18 is rotatably connected with the lugs 17. Both ends of the rotary rod 18 are provided with external threads and are in threaded connection with fixing nuts 19. A connecting rod 20 is vertically and fixedly connected to the part of the rotating rod 18, which is located between the two bumps 17, and a screw 21 is vertically and fixedly connected to one end of the connecting rod 20, which is far away from the rotating rod 18. The screw 21 is slidably sleeved with a sliding block 22, and the sliding block 22 can rotate relative to the screw 21. The screw 21 is connected with a locking nut 23 in a threaded manner, and the locking nut 23 is positioned between the slider 22 and the connecting rod 20.
Referring to fig. 4, a support plate 24 and a fixing strip 25 are vertically connected to an end of the screw 21 away from the connecting rod 20, wherein the fixing strip 25 and the screw 21 are welded and fixed, and the support plate 24 is detachably connected to the screw 21. In the embodiment of the present application, the screw 21 penetrates the support plate 24, and the support plate 24 and the screw 21 are fastened by a fastener. The supporting plate 24 and the fixing strip 25 have the same thickness, and the upper surfaces of the supporting plate 24 and the fixing strip 25 are flush. The supporting plates 24 and the fixing strips 25 are symmetrically distributed on the circumferential surface of the screw 21. The fixing strip 25 is provided with a bubble level 26, and the bubble level 26 is arranged along the length direction of the supporting plate 24.
Referring to fig. 4 and 5, adding steps S20, S2 to step S2 includes the steps of:
and S20, correcting the levelness of the support plate 24 by observing the bubble level meter 26, and adjusting the verticality of the steel upright 2. Specifically, the method comprises the following steps:
s201, respectively placing four groups of correction assemblies on the periphery of the scabbling area, and enabling two adjacent groups of correction assemblies to be arranged vertically. The underlay sheet 9 is placed on the ground and the jacks 3 are placed on the underlay sheet 9. The piston rod of the jack 3 is inserted into the positioning tube 16, and the positioning tube 16 guides the piston rod of the jack 3 so that the base 15 is not separated from the jack 3. Looking at the position of the bubble on the level 26, if the bubble is not in the middle, the fixing nut 19 is unscrewed, the rotating rod 18 is rotated in the corresponding direction until the bubble is in the middle, and then the fixing nut 19 is tightened.
S202, whether the upper surfaces of the four support plates 24 are on the same plane or not is detected by using the straight ruler. Specifically, one end of the straightedge is placed flat on one of the support plates 24 and the other end of the straightedge is aligned with and compared to the side of the other support plate 24. If the upper surfaces of the two support plates 24 are not in the same plane, the jack 3 is adjusted according to the ruler until the upper surfaces of the two support plates 24 are flush. This is done in turn until the upper surfaces of the four support plates 24 are in the same plane.
After the follow-up steel stand 2 is placed on four backup pads 24, because of the equal level of four backup pads 24 and the upper surface of four backup pads 24 is located the coplanar to make steel stand 2 keep vertical, accomplish the straightness's that hangs down to steel stand 2 correction.
And S21, hoisting the steel upright 2 by using a crane, wherein the hoisting process is the same as that in the embodiment 1. Before placing the steel column 2 on the support plate 24, the slider 22 is rotated so that the slider 22 is located above the fixing bar 25, then the steel column 2 is lowered by the crane so that the steel column 2 is placed on the four support plates 24, thereafter, the slider 22 is rotated so that the slider 22 is located above the support plate 24, the lock nut 23 is tightened so that the slider 22 and the support plate 24 clamp the bottom plate 8 of the steel column 2, and the jack 3 supports the steel column 2 through the jacking base 15.
S22, unhooking the crane, and hoisting the next steel upright 2.
In S3, the elevation of the steel column 2 is corrected by the leveling instrument in cooperation with the correction assembly, the debugging method is the same as that in embodiment 1, and after the elevation of the steel column 2 is corrected, the positioning nut 11 is screwed down.
S4, referring to fig. 6 and 7, caulking processing. The method comprises the following specific steps:
s41, building a pouring model, wherein a pair of side walls, adjacent to the screw 21, of the support plates 24 are recessed with slots 27, L-shaped baffles 28 are arranged between every two adjacent support plates 24, and the baffles 28 are inserted between every two adjacent slots 27. And a connecting plate 29 is fixedly connected between two adjacent baffle plates 28 through screws, the connecting plate 29 is positioned below the supporting plate 24, and the connecting plate 29 shields the gap between the supporting plate 24 and the bearing platform 1.
And S42, a pouring hole 30 is formed in one of the baffles 28, the pouring hole 30 penetrates through one side, abutted against the bearing platform 1, of the baffle 28, a grouting pipe connected with a grouting machine extends into a gap between the bottom plate 8 and the bearing platform 1 through the pouring hole 30 for grouting, after concrete slurry overflows out of the pouring model, the grouting pipe is taken out, the pouring hole 30 is sealed, and floating processing is carried out.
S43, after the concrete is formed, the correcting component can be detached by removing the fastening piece between the supporting plate 24 and the screw 21, and the installation of the steel upright post 2 is completed.
The implementation principle of the embodiment 2 is as follows:
in the field construction process of the method, before the steel column 2 is hoisted, the levelness of the upper surface of the supporting plate 24 is corrected through the bubble level gauge 26, then whether the upper surfaces of the four supporting plates 24 are positioned on the same plane or not is corrected through the straight ruler matched with the four groups of correction assemblies, then the steel column 2 is hoisted, and the correction of the verticality of the steel column 2 can also be completed. Compared with the mode of correcting the perpendicularity of the steel upright 2 by matching the magnetic plumb bob 10 with the correcting component, the method has the advantages that the influence of external factors such as wind power does not exist, the time for waiting for the hammer body of the magnetic plumb bob 10 to stop swinging is saved, a large amount of time is saved, and the correcting efficiency of the perpendicularity of the steel upright 2 is obviously improved. And people do not need to climb the ladder to disassemble and assemble the magnetic plumb bob 10, so that the construction safety of workers is obviously improved.
In addition, the supporting plate 24 and the screw 21 are detachably arranged, when concrete is poured to fill the gap between the bottom plate 8 of the steel upright 2 and the bearing platform 1, a cushion block 12 does not need to be additionally prepared, a large amount of time is saved, and the hoisting efficiency of the steel upright 2 is further improved.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. A method for quickly installing a steel structure upright column is characterized by comprising the following steps: the method comprises the following steps:
s1, carrying out preparation work before hoisting of the steel upright post (2), wherein the preparation work comprises the following steps:
s11, performing chiseling treatment on the middle part of the bearing platform (1), wherein the shape of a chiseling area is consistent with that of a bottom plate (8) of the steel upright post (2);
s12, preparing four groups of correction assemblies, wherein each correction assembly comprises a jack (3) and a fixture;
the fixture comprises a base (15), a rotating rod (18) is connected to the base (15) in a rotating mode, a connecting rod (20) is vertically and fixedly connected to the rotating rod (18), a screw rod (21) is vertically and fixedly connected to one end, far away from the rotating rod (18), of the connecting rod (20), a supporting plate (24) and a fixing strip (25) are vertically connected to one end, far away from the connecting rod (20), of the screw rod (21), the upper surfaces of the supporting plate (24) and the fixing strip (25) are flush, the supporting plate (24) and the fixing strip (25) are symmetrically distributed on the peripheral surface of the screw rod (21), a bubble level meter (26) is installed on the fixing strip (25), and the bubble level meter (26) is placed along the length direction of the supporting plate (24);
the screw rod (21) is sleeved with a sliding block (22) in a sliding mode, the sliding block (22) can rotate relative to the screw rod (21), the screw rod (21) is connected with a locking nut (23) in a threaded mode, and the locking nut (23) is located between the sliding block (22) and the connecting rod (20);
s2, hoisting the steel upright post (2), which comprises the following steps:
s21, lifting the steel upright post (2) by using a crane, sleeving a bottom plate (8) of the steel upright post (2) on a positioning stud (7) pre-embedded on the bearing platform (1), respectively arranging four groups of correction assemblies around the steel upright post (2), clamping a clamp on the bottom plate (8) of the steel upright post (2), and jacking the steel upright post (2) by a jack (3) through a jacking clamp;
s22, unhooking the crane, and hoisting the next steel upright (2);
s3, correcting the steel upright post (2);
and S4, performing gap filling treatment.
2. The method for quickly installing the steel structure upright post according to claim 1, wherein the method comprises the following steps: s3 comprises the following steps:
s31, preparing two magnetic plumbs (10), and respectively installing the two magnetic plumbs (10) on the adjacent surfaces of the top end of the steel upright post (2);
s32, after the hammer body of the magnetic plumb bob (10) is still, selecting a plurality of measuring points along the length direction of the suspension wire, respectively measuring the distances between the measuring points and the lateral surface of the plumb bob, if the distances are unequal, adjusting the jacks (3) in the corresponding directions, and then repeatedly measuring until the distances between the measuring points and the lateral surface of the plumb bob are equal;
and S33, measuring the height of the installed steel upright (2) by using a level gauge, and if the height of the steel upright (2) is not equal to the elevation, controlling the piston rods of the four jacks (3) to ascend or descend by the same height until the height of the steel upright (2) is equal to the elevation.
3. The method for rapidly installing the steel structure upright post according to claim 2, wherein the method comprises the following steps: s4 comprises the following steps:
s41, removing the magnetic plumb bob (10);
s42, measuring the distance between the bottom plate (8) and the bearing platform (1), manufacturing a cushion block (12), plugging the cushion block (12) into a gap between the bottom plate (8) and the bearing platform (1), loosening the steel plate (4) below the jack (3), and taking out the steel plate (4);
s43, building a pouring platform on the bearing platform (1), wherein the pouring platform is formed by connecting a plurality of templates (13) end to end, and the pouring platform is arranged around the periphery of the steel stand column (2);
s44, extending a grouting pipe connected with a grouting machine into a gap between the bottom plate (8) and the bearing platform (1) for grouting until concrete slurry overflows out of the pouring platform.
4. The method for rapidly installing the steel structure upright post according to claim 1, wherein the method comprises the following steps: adding an S20 step in S2, which comprises the following steps:
s201, placing the four correction assemblies at the periphery of a scabbling area, observing the positions of bubbles on a bubble level gauge (26), if the bubbles are not in the middle, rotating a rotating rod (18) in a corresponding direction until the bubbles are in the middle, and then locking the rotating rod (18) to limit the rotation of the rotating rod;
s202, detecting whether the upper surfaces of the four support plates (24) are in the same plane or not by using the ruler, and if the upper surfaces of the four support plates (24) are not in the same plane, adjusting the heights of the support plates (24) by using the jacks (3) until the upper surfaces of the four support plates (24) are in the same plane.
5. The method for rapidly installing the steel structure upright post according to claim 4, wherein the method comprises the following steps: in S21, the steel upright (2) is lifted by a crane, the sliding block (22) is rotated to enable the sliding block (22) to be located above the fixing strip (25), and then the steel upright (2) is placed on the four supporting plates (24) through the crane; and then, rotating the sliding block (22) to enable the sliding block (22) to be located above the supporting plate (24), tightening the locking nut (23) to enable the sliding block (22) and the supporting plate (24) to clamp the bottom plate (8) of the steel upright post (2), and enabling the jack (3) to lift the steel upright post (2) through the lifting base (15).
6. The method for quickly installing the steel structure upright post according to claim 5, wherein the method comprises the following steps: and in S3, the elevation of the steel upright post (2) is corrected by matching the leveling instrument with four groups of correction assemblies.
7. The method for rapidly installing the steel structure upright post according to claim 6, wherein the method comprises the following steps: s4, the method comprises the following steps:
s41, a pouring platform is built, the supporting plates (24) are detachably connected with the screw rods (21), a pair of side walls, adjacent to the screw rods (21), of the supporting plates (24) are provided with inserting grooves (27) in a recessed mode, a baffle (28) is arranged between every two adjacent supporting plates (24), the baffle (28) is inserted between every two adjacent inserting grooves (27), a connecting plate (29) is fixedly connected between every two adjacent baffle (28), the connecting plate (29) is located below the supporting plates (24), and gaps between the supporting plates (24) and the bearing platform (1) are shielded by the connecting plate (29);
s42, extending a grouting pipe connected with a grouting machine into a gap between the bottom plate (8) and the bearing platform (1) for grouting until concrete slurry overflows out of the pouring platform;
s43, after the concrete is formed, separating the support plate (24) from the screw (21) to complete the installation of the steel upright post (2).
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