An integrated hoisting method for a large-span steel structure inclined column and beam mechanism

Abstract

The present invention relates to an integrated hoisting method for a large-span steel structure inclined column and cross-beam mechanism, wherein the steel structure inclined column and cross-beam mechanism comprises an inclined column and a crossbeam installed on the top of the inclined column, and the integrated hoisting method comprises the following steps: S1, setting a first hoisting point on the inclined column and a second hoisting point on the crossbeam; S2, preparing a first hoisting wire rope, wherein the two ends of the first hoisting wire rope are respectively wound around the two sides of the crossbeam and respectively fixed to the first hoisting point of the inclined column; S3, preparing a second hoisting wire rope, wherein the second hoisting wire rope is fixed to the second hoisting point of the crossbeam; S4, connecting the hook of a hoisting crane to the first hoisting ring of the first hoisting wire rope and the second hoisting ring of the second hoisting wire rope, and then hoisting; S5, connecting the inclined column and crossbeam hoisted into place to the corresponding main structure. The present invention can effectively realize the integrated hoisting of the large-span steel structure inclined column and cross-beam mechanism without adding connecting parts.

Description

Technical Field

[0001] The invention relates to an integrated hoisting method for a large-span steel structure oblique column and beam mechanism, which can realize the integrated hoisting of the large-span steel structure oblique column and beam mechanism under the premise of small deformation. Background Art

[0002] In recent years, steel structure construction technology has been increasingly used in public buildings. Due to the lightweight and high-strength advantages of steel structures, large-span public buildings can achieve more challenging design and construction, resulting in more aesthetically pleasing buildings. Large-span steel column-beam structures are common components in stadium-type buildings, and their construction presents certain challenges. In particular, some stadium-type buildings utilize oblique columns in their steel structure column-beam structures to enhance their aesthetics, making installation even more challenging.

[0003] In order to prevent excessive deformation of the inclined column and cross-beam mechanism of a large-span steel structure during construction, the traditional construction method is: first, a cradle is set up to preliminarily fix the components, and then the inclined columns and cross-beams are hoisted and constructed one after another. Due to the need to set up a cradle, this construction method has a slow overall construction process and high construction costs; on the other hand, due to the separate construction of the inclined columns and cross-beams, more high-altitude work steps are required, which can easily lead to safety problems. For this reason, an installation method that does not require the use of a cradle for preliminary fixation and uses an overall hoisting method to hoist the steel structure's inclined column and cross-beam mechanism has begun to be used. At present, in the process of hoisting the steel structure's inclined column and cross-beam mechanism using an overall hoisting method, in order to ensure that the hoisting can proceed smoothly, most of the lifting points are set on the beams. Since the lifting points are all set on the beams, the gravity of the inclined column is completely applied to the connection between it and the beam. Since the inclined column with a large span has a large weight, that is, the inclined column itself has a large gravity, the connection angle between the inclined column and the beam during the lifting process is likely to increase significantly due to the force on the inclined column. In addition, during the lifting process, the inertial force caused by the change in lifting speed will cause the inclined column to shake, thereby further exacerbating the change in the connection angle between the inclined column and the beam during the lifting process. In order to ensure that the connection between the inclined column and the beam does not produce a large amount of deformation during the lifting process, that is, to ensure that the connection angle between the inclined column and the beam does not increase significantly during the lifting process, it is necessary to pre-install the connector between the inclined column and the beam before lifting. The intervention of the installation parts can improve the structural stability between the inclined column and the beam.

[0004] Such a hoisting method has the following defects: the connecting parts are mostly rigid connecting parts, which are generally fixed to the inclined columns and beams by welding. Therefore, the setting of the connecting parts is prone to form welding stress at the connection points between them and the inclined columns and beams, thereby destroying the original structural stability of the inclined columns and beams hoisted into place. In addition, the welding installation of the connecting parts and the subsequent cutting and removal will significantly increase the workload during the hoisting operation.

[0005] Therefore, the research purpose of the present invention is to design an integrated lifting method for a large-span steel structure inclined column and cross-beam mechanism that can effectively realize the integrated lifting of the large-span steel structure inclined column and cross-beam mechanism without adding connecting parts, and can ensure that there is no obvious deformation at the connection between the inclined columns and the cross beams of the large-span steel structure inclined column and cross-beam mechanism during the lifting process. Summary of the Invention

[0006] In response to the technical problems existing in the above-mentioned prior art, the present invention provides an integrated lifting method for a large-span steel structure inclined column and crossbeam mechanism, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0007] The technical solution of the present invention is:

[0008] A method for hoisting an integrated structure of a large-span steel structure with an inclined column and a crossbeam is disclosed. The structure comprises an inwardly inclined column and a crossbeam fixed to the top of the column. The angle between the column and the crossbeam is acute. The method comprises the following steps:

[0009] S1, measuring the center of gravity of the inclined column and the crossbeam when they are each in an installed state, and measuring the center of gravity of the inclined column and the crossbeam after they are assembled, setting a first hanging point on the inclined column and a second hanging point on the crossbeam, wherein the first hanging point is located above the center of gravity of the inclined column and the second hanging point is located outside the center of gravity of the crossbeam;

[0010] S2, preparing a first hoisting steel wire rope, folding the first hoisting steel wire rope in half along its midpoint, and fixing the folded first hoisting steel wire rope with a first fixing aluminum sleeve on the inner side of the folding point to form a first hoisting loop in the middle of the first hoisting steel wire rope, and respectively winding the two ends of the first hoisting steel wire rope around the two sides of the crossbeam and fixing them to the first lifting points of the inclined column through corresponding first detachable locking mechanisms;

[0011] S3, preparing a second lifting wire rope, one end of the second lifting wire rope being fixed to the second lifting point of the crossbeam via a second detachable locking mechanism, the end of the second lifting wire rope not fixed to the crossbeam being bent inward and fixed via a corresponding second fixing aluminum sleeve, so that the end of the second lifting wire rope not connected to the crossbeam forms a second lifting loop; when the first and second lifting wire ropes are tensioned and the first and second lifting loops overlap, the overlapping portion of the first and second lifting loops is located in the same vertical direction of the center of gravity of the assembled inclined column and crossbeam;

[0012] S4, connecting the hook of a lifting crane to the first lifting ring and the second lifting ring, and then lifting the inclined column and the beam by the crane;

[0013] S5, connect the outer ends of the inclined columns and beams hoisted into place to the corresponding main structures respectively.

[0014] After step S5, the method further includes step S6: removing the first detachable locking mechanism and the second detachable locking mechanism.

[0015] In step S2, before the two ends of the first lifting wire rope are respectively wrapped around the two sides of the beam, a corresponding clamping mechanism is movably set on the top of the beam. When the first lifting wire rope is tensioned, a pre-tightening force is provided to the clamping mechanism, and the inclined column and the beam are tightened by the cooperation of the first lifting wire rope and the clamping mechanism.

[0016] The clamping mechanism includes a movable seat with the same width as the beam, a group of support rollers that are mounted on the bottom of the movable seat and abut against the top surface of the beam are installed laterally, and a group of clamping rollers located on the outside of the movable seat are installed on the top of the movable seat and are installed longitudinally. Corresponding hanging plates with guide holes are rotatably installed on the movable seat on the lower side of the clamping roller, and both sides of the first lifting wire rope respectively pass through the hanging plates with guide holes and are fixed to the first lifting point of the inclined column through the first detachable locking mechanism.

[0017] The first detachable locking mechanism includes a first perforated ear plate welded to both sides of the first lifting point of the inclined column, and a first U-shaped buckle fixed to the two ends of the first lifting wire rope. The opening of the first U-shaped buckle is locked and installed with a first bolt that is clamped to the first perforated ear plate by a threaded connection.

[0018] The second detachable locking mechanism includes a second perforated ear plate welded to the top of the second lifting point of the beam, and a second U-shaped buckle fixed to the end of the second lifting wire rope, and the opening of the second U-shaped buckle is locked and installed with a second bolt that is clamped to the second perforated ear plate by a threaded connection.

[0019] The inclined columns and cross beams are both made of I-beams, and a plurality of corresponding reinforcing ribs are fixedly connected to both sides of the inclined columns and cross beams at intervals.

[0020] The step S4 also includes the following steps:

[0021] An anti-deformation buffer mechanism is fixed between the outer ends of the inclined column and the crossbeam, and the anti-deformation buffer mechanism includes a telescopic buffer rod and a clamp connected to the two end portions of the telescopic buffer rod, and the clamp includes a fixed plate and a group of inverted J-shaped fasteners arranged side by side and fixed to the outside of the fixed plate, and the inverted J-shaped fastener is arranged at an interval between the end not connected to the fixed plate and the fixed plate, and the middle part of the fixed plate is connected to the corresponding tightening bolt by a threaded connection; when clamped, the inverted J-shaped fastener is respectively fastened to both sides of the inclined column and the crossbeam, and the tightening bolt is tightened to the middle of the outer wall of the inclined column or the crossbeam.

[0022] Corresponding connecting plates are fixed between the outer sides of the inverted J-shaped fasteners of the clamps, and corresponding hinged plates are fixed outwardly to the outer sides of the inverted J-shaped fasteners (1402). The telescopic buffer rod comprises a fixing rod, one end of which is hinged to the hinge plate of one of the clamps, and the other end of the fixing rod is provided with a guide hole, and a corresponding connecting rod is movably connected outward in the guide hole. A corresponding spring fixing seat is movably installed on the connecting rod located on the outer side of the guide hole by a threaded connection, and a corresponding coil spring is provided between the spring fixing seat and the fixing rod, and both ends of the coil spring are fixed to the fixing rod and the spring fixing seat, respectively. The end of the connecting rod not connected to the guide hole is hinged to the hinge plate of the other clamp.

[0023] The connecting ends of the inverted J-shaped fastener and the inclined column or beam are respectively fixed with corresponding pressure plates, and a corresponding tightening plate is respectively provided between the rod end of the tightening bolt and the inclined column or beam.

[0024] Advantages of the present invention:

[0025] 1) First, by setting the first and second lifting points, and by coordinating the first and second lifting wire ropes, the lifting force can be directly applied to the inclined columns and beams without affecting the lifting operation. This solves the problem of deformation and increased connection angle caused by the weight of the inclined columns acting directly on the connection between them and the beams, thereby preliminarily reducing the deformation of the inclined column and beam mechanism of the large-span steel structure during integrated lifting.

[0026] Secondly, the first lifting point is set on the upper side of the center of gravity of the inclined column, so that the end of the inclined column close to the crossbeam during the lifting process has a certain upward swing tendency, so that the upper part of the inclined column abuts the inner end of the crossbeam; then the second lifting point is set outside the center of gravity of the crossbeam, so that the end of the crossbeam close to the inclined column during the lifting process has a certain downward swing tendency, so that the inner end of the crossbeam abuts the upper end of the inclined column; the inclined column and the crossbeam form a mutual abutting force during the lifting process, thereby improving the structural stability of the connection between the inclined column and the crossbeam of the large-span steel structure inclined column and crossbeam mechanism, so as to further reduce the deformation of the large-span steel structure inclined column and crossbeam mechanism during integrated lifting;

[0027] In this way, without adding any connecting parts, that is, without increasing the workload of welding installation and subsequent cutting and dismantling, the integrated lifting of the large-span steel structure inclined column and cross-beam mechanism can be effectively achieved, and it can be ensured that there is no obvious deformation at the connection between the inclined columns and the cross beams of the large-span steel structure inclined column and cross-beam mechanism during the lifting process.

[0028] 2) During the hoisting process of the present invention, the height difference between the two fixing points of the crossbeam, i.e., the second hanging point, and the junction between the crossbeam and the inclined column is small, and the span between the two fixing points is large. Most importantly, the two fixing points are located outside the center of gravity of the crossbeam. Therefore, the crossbeam itself has sufficient stability during the hoisting process and will not produce excessive shaking. However, the height difference between the two fixing points of the inclined column, i.e., the first hanging point, and the junction between the inclined column and the crossbeam is large, and the span between the two fixing points is small. Most importantly, the two fixing points are both located above the center of gravity of the inclined column. Therefore, the inclined column itself will produce significant shaking during the hoisting process.

[0029] In order to solve the problem of the shaking of the inclined column during the hoisting process, the present invention pre-arranges a corresponding clamping mechanism on the top of the crossbeam in a movably manner before the two ends of the first hoisting wire rope are respectively wound around the two sides of the crossbeam in step S2. When the first hoisting wire rope is tensioned, it provides a pre-tightening force to the clamping mechanism, and the first hoisting wire rope cooperates with the clamping mechanism to tighten the inclined column and the crossbeam. When the inclined column is hoisted, it is clamped to the crossbeam in a clamping manner to improve the structural stability and integrity between the inclined column and the crossbeam, thereby effectively reducing the shaking of the inclined column during hoisting, and further realizing the integrated hoisting of the inclined column and crossbeam mechanism of the large-span steel structure without adding connecting parts, that is, without increasing the welding installation and subsequent cutting and dismantling workload, and can further ensure that there is no obvious deformation between the inclined column and the crossbeam of the inclined column and crossbeam mechanism of the large-span steel structure during the hoisting process.

[0030] 3) The clamping mechanism of the present invention includes a movable seat with the same width as the beam, a group of support rollers that abut against the top surface of the beam are installed on the bottom of the movable seat for transverse rotation, and a group of clamping rollers located on the outside of the movable seat are installed on the top of the movable seat for longitudinal rotation. Corresponding hanging plates with guide holes are rotatably installed on the movable seats on the lower side of the clamping rollers, and both sides of the first lifting wire rope pass through the corresponding hanging plates with guide holes and are respectively fixed to the first lifting point of the inclined column.

[0031] Firstly, under the action of the supporting roller, the position of the movable seat is effectively adaptively adjusted, and under the rotating guidance of the rotatably installed hanging plate with guide holes, the guide angles on both sides of the first hoisting wire rope can be adaptively adjusted, thereby not affecting the tensioning of the first hoisting wire rope; secondly, under the action of the clamping roller, the two sides of the first hoisting wire rope can be effectively pre-tightened outward, and after the tops of both sides of the first hoisting wire rope are tightened inward, it will form an oblique downward clamping effect on the clamping roller, thereby effectively providing a pre-tightening force for the movable seat to fix the oblique column to the beam, thereby effectively ensuring the practical effect of the present invention.

[0032] 4) Under the cooperation of the clamping mechanism and the first hoisting wire rope, the structural stability and integrity between the inclined column and the crossbeam are effectively improved, thereby protecting the miter joint of the inclined column and the crossbeam from obvious deformation. However, due to the large span of the inclined column, the inclined column part at the bottom of the first hanging point still has a high probability of shaking and deformation. To this end, the present invention fixes an anti-deformation buffer mechanism between the outer ends of the inclined column and the crossbeam, which includes a telescopic buffer rod and a clamp connected to the two ends of the telescopic buffer rod. When clamping, it is only necessary to buckle the inverted J-shaped fastener of the clamp to both sides of the inclined column and the crossbeam respectively, and rotate the tightening bolt to tighten it to the middle of the outer wall of the inclined column or the crossbeam, which is very convenient.

[0033] The retractable buffer rod of the present invention is connected between the outer ends of the inclined column and the cross beam by cooperating with the clamp, the inclined column and the cross beam. The retractable buffer rod can effectively adapt to the shaking of the inclined column part at the bottom of the first hanging point through the extension and retraction of the retractable buffer rod, and can buffer and weaken the shaking amount, thereby effectively reducing the probability of shaking and deformation of the inclined column part at the bottom of the first hanging point.

[0034] 5) Due to the presence of certain processing errors in the processing of the inclined columns and beams of the inclined column and beam mechanism of the large-span steel structure, and the large span of the inclined columns and beams, even a very small error will cause the assembly between the telescopic buffer rod and a set of clamps to be impossible to complete. For this reason, the telescopic buffer rod of the present invention includes a fixed rod, one end of the fixed rod is hinged to the hinge plate of one of the clamps, and the other end is provided with a guide hole, and a corresponding connecting rod is movably connected outward in the guide hole. A corresponding spring fixing seat is movably installed on the connecting rod located outside the guide hole through a threaded connection, and a corresponding coil spring is provided between the spring fixing seat and the fixed rod, and the two ends of the coil spring are respectively fixed to the fixed rod and the spring fixing seat, and then the end of the connecting rod not connected to the guide hole is hinged to the hinge plate of the other clamp.

[0035] During use, the compression or extension of the coil spring effectively accommodates the swaying of the inclined column at the bottom of the first suspension point, buffering and reducing the swaying. During installation, the clamps are pre-installed in place, and one end of the fixing rod is hinged to the hinge plate of one of the clamps. The relative position of the connecting rod and the spring fixing seat is then adjusted, thereby effectively adjusting the actual length of the telescopic buffer rod without affecting the free form of the coil spring to accommodate the machining error between the inclined column and the crossbeam. The end of the connecting rod not connected to the guide hole is then hinged to the hinge plate of another clamp, thereby effectively ensuring smooth assembly of the telescopic buffer rod with a set of clamps and the practical effect of the present invention.

[0036] 6) The clamping mechanism and the anti-deformation buffer mechanism of the present invention do not need to be welded to the inclined columns or beams, and the assembly process is extremely simple. Therefore, they will not cause structural damage to the inclined columns or beams, and will not excessively increase the workload of the lifting construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of the hoisting process of the present invention.

[0038] Figure 2 It is a front view of the hoisting process of the present invention.

[0039] Figure 3 Schematic diagram of the structure of the first detachable locking mechanism.

[0040] Figure 4 Schematic diagram of the structure of the second detachable locking mechanism.

[0041] Figure 5 It is a structural diagram of the clamping mechanism.

[0042] Figure 6 Schematic diagram of the structure of the clamp for the anti-deformation buffer mechanism.

[0043] Figure 7 Schematic diagram of the structure of the retractable buffer rod of the anti-deformation buffer mechanism. DETAILED DESCRIPTION

[0044] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the embodiments and the accompanying drawings:

[0045] refer to Figure 1-7 A method for hoisting an integrated structure of a large-span steel structure with an inclined column and beam is disclosed. The structure comprises an inwardly inclined column 1 and a beam 2 fixed to the top of the inclined column 1. The angle between the inclined column 1 and the beam 2 is acute. The method comprises the following steps:

[0046] S1, using auxiliary software to create a model of the inclined column and the crossbeam, and based on the model, calculate the center of gravity position 102 of the inclined column 1 when in an installed state, and the center of gravity position 202 of the crossbeam 2 when in an installed state, and calculate the center of gravity position 102 of the inclined column 1 and the crossbeam 2 after being assembled, and set a first hanging point 101 on the inclined column 1 and a second hanging point 201 on the crossbeam 2, wherein the first hanging point 101 is located above the center of gravity position 102 of the inclined column 1, and the second hanging point 201 is located outside the center of gravity position 202 of the crossbeam 2;

[0047] S2, prepare a first hoisting steel wire rope 3, fold the first hoisting steel wire rope 3 in half along the midpoint of the first hoisting steel wire rope 3, and fix the first hoisting steel wire rope 3 on the inner side of the folding point through a first fixing aluminum sleeve 4, so that a first hoisting ring 301 is formed in the middle of the first hoisting steel wire rope 3, and the two ends of the first hoisting steel wire rope 3 are respectively wound around the two sides of the crossbeam 2 and fixed to the first lifting point 101 of the inclined column 1 through corresponding first detachable locking mechanisms 5;

[0048] S3, prepare a second lifting wire rope 6, one end of the second lifting wire rope 6 is fixed to the second lifting point 201 of the beam 2 by a second detachable locking mechanism 7, the end of the second lifting wire rope 6 not fixed to the beam 2 is bent inward and fixed by a corresponding second fixing aluminum sleeve 8, so that the end of the second lifting wire rope 6 not connected to the beam forms a second lifting loop 601; when the first lifting wire rope 3 and the second lifting wire rope 6 are tensioned and the first lifting loop 301 and the second lifting loop 601 overlap, the overlapping part of the first lifting loop 301 and the second lifting loop 601 is located in the same vertical direction of the center of gravity of the inclined column 1 and the beam 2 after assembly;

[0049] S4, the hook 9 of the lifting crane is connected to the first lifting ring 301 and the second lifting ring 601, and then the inclined column 1 and the beam 2 are lifted by the crane;

[0050] S5, connecting the outer ends of the inclined columns 1 and beams 2 hoisted into place to the corresponding main structures respectively;

[0051] S6: dismantling the first detachable locking mechanism 5 and the second detachable locking mechanism 7.

[0052] First, by setting the first lifting point 101 and the second lifting point 201, and the coordinated design of the first lifting wire rope 3 and the second lifting wire rope 6, the lifting force can be directly applied to the inclined column 1 and the crossbeam 2 respectively without affecting the lifting operation, so as to solve the problem of deformation and increased connection angle caused by the gravity of the inclined column 1 directly acting on the connection between it and the crossbeam 2, thereby preliminarily reducing the deformation of the inclined column and crossbeam mechanism of the large-span steel structure during integrated lifting;

[0053] Secondly, the first hanging point 101 is set on the upper side of the center of gravity position 102 of the inclined column 1, so that the inclined column 1 near the end of the crossbeam 2 during the hoisting process has a certain upward swing tendency, so that the upper part of the inclined column 1 abuts against the inner end of the crossbeam 2; then the second hanging point 201 is set outside the center of gravity position 202 of the crossbeam 2, so that the crossbeam 2 near the end of the inclined column 1 during the hoisting process has a certain downward swing tendency, so that the inner end of the crossbeam 2 abuts against the upper end of the inclined column 1; the inclined column 1 and the crossbeam 2 form a mutual abutting force during the hoisting process, thereby improving the structural stability of the connection between the inclined column 1 and the crossbeam 2 of the large-span steel structure inclined column and crossbeam mechanism, so as to further reduce the deformation of the large-span steel structure inclined column and crossbeam mechanism during integrated hoisting;

[0054] Thus, without adding any connectors, that is, without increasing the workload of welding installation and subsequent cutting and dismantling, the integrated lifting of the large-span steel structure inclined column and cross-beam mechanism can be effectively achieved, and it can be ensured that no obvious deformation occurs at the connection between the inclined column 1 and the cross-beam 2 of the large-span steel structure inclined column and cross-beam mechanism during the lifting process.

[0055] In step S2, before the two ends of the first hoisting wire rope 3 are respectively wrapped around the two sides of the beam 2, a corresponding clamping mechanism 11 is movably set on the top of the beam 2. When the first hoisting wire rope 3 is tensioned, a pre-tightening force is provided to the clamping mechanism 11, and the inclined column 1 and the beam 2 are tightened by the cooperation of the first hoisting wire rope 3 and the clamping mechanism 11.

[0056] In order to solve the problem of shaking of the inclined column 1 during the hoisting process, the present invention, in step S2, before the two ends of the first hoisting wire rope 3 are respectively wrapped around the two sides of the beam 2, a corresponding clamping mechanism 11 is pre-movably provided on the top of the beam 2. When the first hoisting wire rope 3 is tensioned, it provides a pre-tightening force to the clamping mechanism 11, and the first hoisting wire rope 3 cooperates with the clamping mechanism 11 to tighten the inclined column 1 and the beam 2. While the inclined column 1 is being hoisted, it is clamped to the crossbeam 2 in a clamping manner to improve the structural stability and integrity between the inclined column 1 and the crossbeam 2, thereby effectively reducing the amount of shaking generated by the inclined column 1 during hoisting, so as to further realize the integrated hoisting of the large-span steel structure inclined column and crossbeam mechanism without adding additional connectors, that is, without increasing the welding installation and subsequent cutting and dismantling workload, and can further ensure that there is no obvious deformation between the inclined column 1 and the crossbeam 2 of the large-span steel structure inclined column and crossbeam mechanism during the hoisting process.

[0057] The clamping mechanism 11 includes a movable seat 1101 with the same width as the beam 2, and a group of support rollers 1102 abutting against the top surface of the beam 2 are installed on the bottom of the movable seat 1101 for transverse rotation, and a group of clamping rollers 1103 located on the outside of the movable seat 1101 are installed on the top of the movable seat 1101 for longitudinal rotation, and corresponding hanging plates 1104 with guide holes are rotatably installed on the movable seat 1101 under the clamping rollers 1103, and both sides of the first lifting wire rope 3 respectively pass through the hanging plates 1104 with guide holes and are respectively fixed to the first lifting point 101 of the inclined column 1 through the first detachable locking mechanism 5.

[0058] First, under the action of the support roller 1102, the position of the movable seat 1101 is effectively adaptively adjusted, and under the rotational guidance of the rotatably installed hanging plate with guide holes 1104, the guide angles on both sides of the first hoisting wire rope 3 can be adaptively adjusted, thereby not affecting the tensioning of the first hoisting wire rope 3; secondly, under the action of the clamping roller 1103, the two sides of the first hoisting wire rope 3 can be effectively pre-tightened outward, and after the tops of both sides of the first hoisting wire rope 3 are tightened inward, they will form an oblique downward clamping effect on the clamping roller 1103, thereby effectively providing a pre-tightening force for the movable seat 1101 to fix the inclined column 1 to the beam 2, thereby effectively ensuring the practical effect of the present invention.

[0059] The first detachable locking mechanism 5 includes a first perforated ear plate 501 welded to both sides of the first lifting point 101 of the inclined column 1, and a first U-shaped buckle 502 fixed to the two ends of the first lifting wire rope 3. The opening of the first U-shaped buckle 502 is locked and installed with a first bolt 503 that is clamped to the first perforated ear plate 501 by a threaded connection.

[0060] The second detachable locking mechanism 7 includes a second perforated ear plate 701 welded to the top of the second lifting point 201 of the beam 2, and a second U-shaped buckle 702 fixed to the end of the second lifting wire rope 6. The opening of the second U-shaped buckle 702 is locked and installed with a second bolt 703 that is clipped to the second perforated ear plate 701 by a threaded connection.

[0061] The inclined columns 1 and the cross beams 2 are both made of I-beams, and a plurality of corresponding reinforcing ribs 12 are fixedly connected to both sides of the inclined columns 1 and the cross beams 2 at intervals.

[0062] The step S4 also includes the following steps:

[0063] An anti-deformation buffer mechanism is fixed between the outer ends of the inclined column 1 and the crossbeam 2, and the anti-deformation buffer mechanism includes a telescopic buffer rod 13 and a clamp 14 connected to the two end portions of the telescopic buffer rod 13, the clamp 14 includes a fixed plate 1401, and a group of inverted J-shaped fasteners 1402 arranged side by side and fixed to the outside of the fixed plate 1401, the inverted J-shaped fastener 1402 is arranged at an interval between the end not connected to the fixed plate 1401 and the fixed plate 1401, and the middle part of the fixed plate 1401 is connected to the corresponding tightening bolt 1403 by a threaded connection; when clamped, the inverted J-shaped fastener 1402 is respectively fastened to both sides of the inclined column 1 and the crossbeam 2, and the tightening bolt 1403 is tightened to the middle of the outer wall of the inclined column 1 or the crossbeam 2.

[0064] Under the cooperation of the clamping mechanism 11 and the first hoisting wire rope 3, the structural stability and integrity between the inclined column 1 and the crossbeam 2 are effectively improved, thereby protecting the miter joint of the inclined column 1 and the crossbeam 2 from obvious deformation. However, due to the large span of the inclined column 1, the portion of the inclined column 1 at the bottom of the first hanging point 101 still has a high probability of shaking and deforming. To this end, the present invention fixes an anti-deformation buffer mechanism between the outer ends of the inclined column 1 and the crossbeam 2, and the clamp 14 of the anti-deformation buffer mechanism cooperates with the inclined column 1 and the crossbeam 2 to connect the retractable buffer rod 13 of the present invention between the outer ends of the inclined column 1 and the crossbeam 2. The retractable buffer rod 13 can effectively adapt to the shaking of the portion of the inclined column 1 at the bottom of the first hanging point by retracting and retracting. It can also buffer and reduce the shaking amount, thereby effectively reducing the probability of shaking and deformation of the portion of the inclined column 1 at the bottom of the first hanging point 101.

[0065] The outer sides of the inverted J-shaped fasteners 1402 of the clamp 14 are respectively fixed with corresponding connecting plates 1404, and the outer sides of the inverted J-shaped fasteners (1402) are respectively fixed outwardly with corresponding hinge plates 1405. The telescopic buffer rod 13 includes a fixed rod 1301, one end of the fixed rod 1301 is hinged to the hinge plate 1405 of one of the clamps 14, and the other end of the fixed rod 1301 is provided with a guide hole, and the guide hole is movably connected to the corresponding connecting rod 1302 outwardly. A corresponding spring fixing seat 1303 is movably mounted on the connecting rod 1302 located outside the guide hole through a threaded connection. A corresponding coil spring 1304 is provided between the spring fixing seat 1303 and the fixing rod 1301. The two ends of the coil spring 1304 are respectively fixed to the fixing rod 1301 and the spring fixing seat 1303. The end of the connecting rod 1302 not connected to the guide hole is hinged to the hinge plate 1405 of another clamp 14.

[0066] Due to the large-span steel structure's inclined column and crossbeam mechanism, the inclined columns 1 and crossbeam 2 are subject to certain machining errors during the manufacturing process. Furthermore, due to the large span of the inclined columns 1 and crossbeam 2, even the smallest errors can prevent the complete assembly of the telescopic buffer member 13 and the set of clamps 14. Therefore, the telescopic buffer member 13 of the present invention includes a fixing rod 1301, a connecting rod 1302, a spring fixing seat 1303, and a coil spring 1304. During use, the compression or extension of the coil spring 1304 effectively accommodates the swaying of the inclined column 1 at the bottom of the first suspension point 101, thereby buffering and reducing the amount of swaying. During the installation process, the clamps 14 are installed in place in advance, and then one end of the fixing rod 1301 is hinged to the hinge plate 1405 of one of the clamps 14. Thereafter, the relative position of the connecting rod 1302 and the spring fixing seat 1303 is adjusted, so that the actual length of the telescopic buffer rod 13 can be effectively adjusted without affecting the free form of the coil spring 1304 to adapt to the processing error between the inclined column 1 and the beam 2. Then, the end of the connecting rod 1302 that is not connected to the guide hole is hinged to the hinge plate 1405 of another clamp 14, thereby effectively ensuring that the assembly between the telescopic buffer rod 13 and a group of clamps 14 can be smoothly realized, thereby ensuring the practical effect of the present invention.

[0067] The clamping mechanism 11 and the anti-deformation buffer mechanism of the present invention do not need to be welded to the inclined column 1 or the beam 2, and the assembly process is extremely simple. Therefore, it will not cause structural damage to the inclined column 1 or the beam 2, and will not excessively increase the workload of the lifting construction.

[0068] The connecting ends of the inverted J-shaped fastener 1402 and the inclined column 1 or the crossbeam 2 are respectively fixed with corresponding pressure plates 15, and a corresponding tightening plate 16 is respectively provided between the rod end of the tightening bolt 1403 and the inclined column 1 or the crossbeam 2.

[0069] Under the action of the pressing plate 15 and the tightening plate 16 , it is effectively ensured that no excessive mechanical damage is caused to the inclined column 1 and the crossbeam 2 during the installation of the clamp.

[0070] The above is only a preferred embodiment 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. An integrated hoisting method for a large-span steel structure inclined column and crossbeam mechanism, wherein the steel structure inclined column and crossbeam mechanism comprises an inclined column (1) arranged to be inclined inward, and a crossbeam (2) fixed to the top of the inclined column (1), wherein the angle between the inclined column (1) and the crossbeam (2) is an acute angle, and wherein: The integrated lifting method comprises the following steps: S1, measuring the center of gravity of the inclined column (1) and the cross beam (2) when they are in the installed state, and measuring the center of gravity of the inclined column (1) and the cross beam (2) after being assembled, setting a first hanging point (101) on the inclined column (1) and a second hanging point (201) on the cross beam (2), wherein the first hanging point (101) is located above the center of gravity of the inclined column (1), and the second hanging point (201) is located outside the center of gravity of the cross beam (2); S2, prepare a first hoisting steel wire rope (3), fold the first hoisting steel wire rope (3) along the midpoint of the first hoisting steel wire rope (3), and fix the first hoisting steel wire rope (3) on the inner side of the folding point through a first fixing aluminum sleeve (4), so that a first hoisting ring (301) is formed in the middle of the first hoisting steel wire rope (3), and the two ends of the first hoisting steel wire rope (3) are respectively wound around the two sides of the beam (2) and respectively fixed to the first hoisting point (101) of the inclined column (1) through the corresponding first detachable locking mechanism (5); S3, prepare a second lifting wire rope (6), one end of the second lifting wire rope (6) is fixed to the second lifting point (201) of the beam (2) through a second detachable locking mechanism (7), the end of the second lifting wire rope (6) not fixed to the beam (2) is bent inward and fixed through a corresponding second fixing aluminum sleeve (8), so that the end of the second lifting wire rope (6) not connected to the beam forms a second lifting ring (601); when the first lifting wire rope (3) and the second lifting wire rope (6) are tensioned and the first lifting ring (301) and the second lifting ring (601) overlap, the overlapping part of the first lifting ring (301) and the second lifting ring (601) is located in the same vertical direction of the center of gravity position after the inclined column (1) and the beam (2) are assembled; S4, connecting the hook (9) of the lifting crane to the first lifting ring (301) and the second lifting ring (601), and then lifting the inclined column (1) and the beam (2) by the crane; S5, connecting the outer ends of the inclined columns (1) and beams (2) hoisted into place to the corresponding main structures respectively.

2. The integrated hoisting method for a large-span steel structure inclined column and beam mechanism according to claim 1 is characterized in that: After step S5, the method further includes step S6: removing the first detachable locking mechanism (5) and the second detachable locking mechanism (7).

3. The integrated hoisting method for a large-span steel structure inclined column and beam mechanism according to claim 1 is characterized in that: In the step S2, before the two ends of the first hoisting wire rope (3) are respectively wound around the two sides of the beam (2), a corresponding clamping mechanism (11) is pre-movably provided on the top of the beam (2). When the first hoisting wire rope (3) is tensioned, a pre-tightening force is provided to the clamping mechanism (11), and the first hoisting wire rope (3) cooperates with the clamping mechanism (11) to tighten the inclined column (1) and the beam (2).

4. The integrated hoisting method for a large-span steel structure inclined column and beam mechanism according to claim 3 is characterized in that: The clamping mechanism (11) comprises a movable seat (1101) having the same width as the beam (2), a group of support rollers (1102) abutting against the top surface of the beam (2) being installed on the bottom of the movable seat (1101) in a transversely rotatable manner, a group of clamping rollers (1103) located on the outside of the movable seat (1101) being installed in a longitudinally rotatable manner on the top of the movable seat (1101), corresponding hanging plates (1104) with guide holes being rotatably installed on the movable seat (1101) below the pressing rollers (1103), and two sides of the first hoisting wire rope (3) respectively pass through the hanging plates (1104) with guide holes and are respectively fixed to the first hoisting point (101) of the inclined column (1) through the first detachable locking mechanism (5).

5. The integrated hoisting method for a large-span steel structure inclined column and beam mechanism according to claim 4 is characterized in that: The first detachable locking mechanism (5) comprises a first perforated ear plate (501) welded to both sides of the first lifting point (101) of the inclined column (1), and a first U-shaped buckle (502) fixed to the two ends of the first lifting wire rope (3), and a first bolt (503) clamped to the first perforated ear plate (501) is fixedly installed at the opening of the first U-shaped buckle (502) by a threaded connection.

6. The integrated hoisting method for a large-span steel structure inclined column and beam mechanism according to claim 1, characterized in that: The second detachable locking mechanism (7) comprises a second perforated ear plate (701) welded to the top of the second lifting point (201) of the beam (2), and a second U-shaped buckle (702) fixed to the end of the second lifting wire rope (6), and a second bolt (703) clamped to the second perforated ear plate (701) is fixedly installed at the opening of the second U-shaped buckle (702) by a threaded connection.

7. The integrated hoisting method for a large-span steel structure inclined column and beam mechanism according to claim 1, characterized in that: The inclined columns (1) and the cross beams (2) are both made of I-steel, and a plurality of corresponding reinforcing ribs (12) are fixedly connected at intervals on both sides of the inclined columns (1) and the cross beams (2).

8. The integrated hoisting method for a large-span steel structure inclined column and beam mechanism according to claim 7, characterized in that: The step S4 also includes the following steps: An anti-deformation buffer mechanism is fixed between the outer ends of the inclined column (1) and the crossbeam (2), the anti-deformation buffer mechanism comprising a telescopic buffer rod (13) and a clamp (14) connected to the two ends of the telescopic buffer rod (13), the clamp (14) comprising a fixed plate (1401) and a group of inverted J-shaped fasteners (1402) arranged side by side and fixed to the outside of the fixed plate (1401), the inverted J-shaped fasteners (1402) ) is spaced apart from one end of the fixing plate (1401) that is not connected to the fixing plate (1401), and the middle of the fixing plate (1401) is connected to a corresponding tightening bolt (1403) by a threaded connection; when clamped, the inverted J-shaped fastener (1402) is respectively fastened to both sides of the inclined column (1) and the crossbeam (2), and the tightening bolt (1403) is tightened against the middle of the outer wall of the inclined column (1) or the crossbeam (2).

9. The integrated hoisting method for a large-span steel structure inclined column and beam mechanism according to claim 8, characterized in that: The outer sides of the inverted J-shaped fasteners (1402) of the clamps (14) are respectively fixed with corresponding connecting plates (1404), and the outer sides of the inverted J-shaped fasteners (1402) are respectively fixed outwardly with corresponding hinge plates (1405). The telescopic buffer rod (13) comprises a fixed rod (1301), one end of the fixed rod (1301) is hinged to the hinge plate (1405) of one of the clamps (14), and the other end of the fixed rod (1301) is provided with a guide hole, and the guide hole is movably connected outwardly to the corresponding connecting rod (1302). A corresponding spring fixing seat (1303) is movably mounted on the connecting rod (1302) located outside the guide hole by means of a threaded connection, a corresponding coil spring (1304) is provided between the spring fixing seat (1303) and the fixing rod (1301), the two ends of the coil spring (1304) are respectively fixed to the fixing rod (1301) and the spring fixing seat (1303), and the end of the connecting rod (1302) not connected to the guide hole is hinged to a hinge plate (1405) of another clamp (14).

10. The integrated hoisting method for a large-span steel structure inclined column and beam mechanism according to claim 8 or 9, characterized in that: The connecting ends of the inverted J-shaped fastener (1402) and the inclined column (1) or the crossbeam (2) are respectively fixed with corresponding pressure plates (15), and a corresponding tightening plate (16) is respectively provided between the rod end of the tightening bolt (1403) and the inclined column (1) or the crossbeam (2).

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