CN220414908U - Labor-saving installation structure of large-size steel beam clamping plate - Google Patents

Abstract

The utility model relates to the technical field of building construction and discloses a labor-saving mounting structure of a large-size steel beam clamping plate, which comprises a steel beam with an upper flange plate and a lower flange plate, brackets connected with the steel beam through a second limiting baffle and provided with the lower flange plate, and a connecting clamping plate fixed on the steel beam through a temporary bolt, wherein the lower flange plate of the steel beam is provided with a sliding rail, and the upper flange plate of the steel beam is provided with a limiting pulley; the lower flange plate of the bracket is provided with a sliding rail and a first limit baffle. The beneficial effects are as follows: the technical scheme solves the problems that the operation of workers is affected by space or the installation can not be carried out only by manpower when the traditional large-size connecting clamping plates are positioned at high altitude, the installation and the operation are simple and convenient, the cost of the used measures is low, the turnover use can be realized, and an operator can easily and quickly install the clamping plates in place on the premise of ensuring the safety, so that the installation efficiency is improved, and the construction cost can be reduced.

Description

Labor-saving installation structure of large-size steel beam clamping plate

Technical Field

The utility model relates to the technical field of building construction, in particular to a labor-saving installation structure of a large-size steel beam clamping plate.

Background

At present, when the steel structure engineering is under construction, the clamping plates are generally fixed to the steel beam connecting positions in advance manually in the installation of the steel beam clamping plates, and the clamping plates are installed and connected in a freehand and high-altitude mode after the steel beams are hoisted in place. However, for the connecting clamping plate used in the construction of the large-size steel beam, the clamping plate is difficult to realize due to the fact that the cross section of the clamping plate is thick, the area is large, the weight is heavy, the clamping plate is limited by the high-altitude operation space, the installation is carried out by adopting manual bare hands continuously, and if operators are added, the safety risk is increased possibly due to insufficient operation space.

I have invented a mounting method, fix the connecting clamp plate to the end of the girder steel through the hinge, after connecting clamp plate and girder steel are integrally put into place, through overturning the clamp plate in order to realize the device that the connecting clamp plate is put into place. However, in the practical process, when encountering the reinforced concrete combined structure and the bracket position at the end part of the steel beam is provided with reserved connecting steel bars, the reserved steel bars extending out of the root parts of the bracket can prevent the connecting clamping plates from overturning, and if the steel bars with larger diameters are bent, the clamping plates are avoided from overturning, so that the construction quality of the steel bars can be influenced.

In patent literature, the application publication number is CN 108867997A, the utility model application of the installation method of the large H-shaped steel beam clamping plate discloses an installation method of the large H-shaped steel beam clamping plate, U-shaped rods are welded on the bottom surface of an upper flange plate of the H-shaped steel beam, sliding sleeves are sleeved on the U-shaped rods, the sliding sleeves are welded with the clamping plate, and the sliding sleeves and the clamping plate are pushed in the horizontal direction in the installation process to complete the installation of the large H-shaped steel beam clamping plate. However, as the clamping plate is suspended on the sliding sleeve and the bottom is free from support, operators need to overcome the larger friction force between the sliding sleeve and the U-shaped rod piece in the pushing process and ensure that the clamping plate cannot swing, and meanwhile, the sliding sleeve and the U-shaped rod piece need to be removed through flame cutting after installation.

Therefore, in the installation process of the large-size steel beam clamping plate, operators waste time and labor and have safety risks.

Disclosure of Invention

In order to overcome the defects existing in the installation process of the large-size steel beam clamping plates in the prior art, the utility model provides a labor-saving installation structure of the large-size steel beam clamping plates, which is used for solving the problem that the operation of workers is affected by space or the installation cannot be carried out only by manpower when the traditional large-size connecting clamping plates are positioned at high altitude, is simple and convenient to install and operate, has low cost and can be used in a turnover way, and an operator can easily and quickly install the clamping plates in place on the premise of ensuring the safety, so that the installation efficiency is improved, and the construction cost is also reduced, and the specific technical scheme is as follows:

the labor-saving mounting structure of the large-size steel beam clamping plate comprises a steel beam with an upper flange plate and a lower flange plate, brackets connected with the steel beam through a second limit baffle and provided with a lower flange plate, and a connecting clamping plate fixed on the steel beam through a temporary bolt, wherein the lower flange plate of the steel beam is provided with a sliding rail, and the upper flange plate of the steel beam is provided with a limit pulley; the lower flange plate of the bracket is provided with a sliding rail and a first limit baffle; the connecting clamping plate is positioned on the sliding rail of the steel beam and is propped against the limiting pulley.

Further, the steel beam is an I-shaped section steel and comprises a lower flange plate, a web plate and an upper flange plate which are integrally formed.

Further, the connecting clamping plates are fixed on two sides of the web plate of the steel beam through temporary bolts; the second limit baffles are symmetrically arranged on two sides of the upper surface of the upper flange plate of the steel beam.

Further, the connecting clamping plate is of a rectangular plate structure and is provided with high-strength bolt holes which are uniformly distributed; the steel beam and the bracket are provided with preformed holes matched with the high-strength bolt holes.

Further, the high-strength bolt hole height of the connecting clamping plate on the sliding rail is consistent with the height of the reserved hole on the steel beam and the bracket.

Further, the distance from the high-strength bolt hole of the connecting clamping plate on the sliding rail to the first limit baffle is correspondingly proportional to the distance from the reserved hole to the first limit baffle.

Further, the sliding rail comprises a sliding groove with a U-shaped cross section, a rotating shaft which is uniformly arranged along the length direction of the sliding groove and penetrates through the sliding groove in the width direction, a pulley which is sleeved on the rotating shaft and can rotate along the rotating shaft, and a magnet which is arranged on the upper surface of the bottom of the sliding groove; the sliding rail is adsorbed to the lower flange plate of the steel beam through the magnetic force of the magnet; the connecting clamping plate is positioned above the pulley.

Further, the sliding rail further comprises a base plate connected to the bottom of the sliding groove and a nut which is positioned on the outer side of the sliding groove and connected with the rotating shaft.

Further, the limit pulley comprises a screw, a nut in threaded connection with the screw and a bearing sleeved on the periphery of the screw; the nut is welded on the lower surface of the upper flange plate of the steel beam.

The beneficial effects of the utility model are as follows: according to the utility model, the limiting pulleys and the first limiting baffle plates are used for limiting, so that the connecting clamping plates can only move along one direction, labor is saved in the pushing process of the connecting clamping plates through the sliding rails and the limiting pulleys, and finally the hole positions of the connecting clamping plates are aligned with the steel beams and the bracket Kong Weineng rapidly by the aid of the height of the sliding rails and the positions of the first limiting baffle plates.

The technical scheme solves the problems that the operation of workers is affected by space or the installation can not be carried out only by manpower when the traditional large-size connecting clamping plates are positioned at high altitude, the installation and the operation are simple and convenient, the cost of the used measures is low, the turnover use can be realized, and an operator can easily and quickly install the clamping plates in place on the premise of ensuring the safety, so that the installation efficiency is improved, and the construction cost can be reduced.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a cross-sectional view of a steel beam of the present utility model.

Fig. 3 is a schematic structural view of the connecting splint of the present utility model.

Fig. 4 is a cross-sectional view of the slide rail of the present utility model.

Fig. 5 is a top view of the slide rail of the present utility model.

Fig. 6 is a schematic structural view of the limit pulley of the present utility model.

Fig. 7 is a schematic view of the pushing process of the connecting clamping plate of the present utility model.

Fig. 8 is a schematic view showing an installation state of the connecting splint of the present utility model.

Wherein:

100-steel girder; 200-corbels; 300-connecting the clamping plates; 400—temporary bolts; 500-sliding rails;

600—a first limit baffle; 700-limiting pulleys; 800-a second limit baffle;

110-lower flange plate; 120-web; 130-upper flange plate;

310-high-strength bolt holes;

510—a pulley; 520-a rotating shaft; 530—a chute; 540-magnet; 550-nut; 560-backing plate;

710—a bearing; 720-screw; 730-nut.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The labor-saving installation structure of the large-size steel beam connecting clamp plate comprises a steel beam 100, a bracket 200, a connecting clamp plate 300, a temporary bolt 400, a sliding rail 500, a first limit baffle 600, a limit pulley 700 and a second limit baffle 800 as shown in fig. 1.

The section of the steel beam 100 is shown in fig. 2, and the steel beam 100 is an "i" -shaped section steel, and includes a lower flange plate 110, a web 120 and an upper flange plate 130, which are integrally formed. The connecting clamping plates 300 are fixed to both sides of the web 120 by temporary bolts; the sliding rail 500 is magnetically adsorbed on the upper surface of the lower flange plate 110 and is arranged close to the web 120; the limiting pulley 700 is fixed on the lower surface of the upper flange plate 130 and protrudes out of the lower surface to support the side surface of the connecting clamping plate 300 away from the web 120; the second limit baffles 800 are symmetrically disposed on both sides of the upper surface of the upper flange plate 130.

Bracket 200 is shown in FIG. 1 as a welded I-section short beam comprising integrally formed lower flange plate 110, web 120 and upper flange plate 130. The sliding rail 500 is magnetically adsorbed on the upper surface of the lower flange plate 110 and is arranged close to the web 120; the first limit stop 600 is adjacent to the sliding rail 500 and welded to the lower flange plate 110. The steel beam 100 and the bracket 200 are temporarily fixedly connected through a second limit stop 800.

The structure of the connecting clamping plate 300 is a rectangular plate structure as shown in fig. 3, and high-strength bolt holes 310 are uniformly formed on the left and right sides of the front and back surfaces. The size of the connecting clamping plate 300 is generally selected according to the sizes of the steel beam 100 and the bracket 200, for example, 1290 x 610 x 30mm is adopted in the practical application of the project, the single weight is 185kg, and when the traditional installation method is adopted, a single person can not easily complete the pushing and hole position alignment process of the connecting clamping plate 300 at high altitude.

The sliding rail 500 adopts a magnetic sliding rail form, and has a structure as shown in fig. 4 and 5, and comprises a sliding groove 530 with a U-shaped cross section, a base plate 560 connected to the bottom of the sliding groove 530, a rotating shaft 520 uniformly arranged along the length direction of the sliding groove 530 and penetrating through the sliding groove 530 in the width direction, a nut 550 positioned outside the sliding groove 530 and connected with the rotating shaft 520, a pulley 510 sleeved on the rotating shaft 520 and capable of rotating along the rotating shaft 520, and a magnet 540 arranged on the upper surface of the bottom of the sliding groove 530. The backing plate 560 is placed on the upper surface of the lower flange plate 110 of the steel beam 100, the connecting clamping plate 300 is placed on the pulley 510, and in the pushing process of the connecting clamping plate 300, the bottom sliding rail 500 is fixed, and the purpose of saving labor is achieved through the rotation of the pulley 510. Because slide rail 500 is from taking magnetism to inhale the function, need not the welding when the installation, need not the cutting when demolishing, it is convenient and do benefit to the turnover many times to install and tear open.

The limit pulley has a structure as shown in fig. 6, and includes a screw 720, a nut 730 screwed with the screw 720, and a bearing 710 sleeved on the periphery of the screw 720. The bearing 710 may be a ball bearing, the nut 730 is welded to the lower surface of the upper flange plate of the steel beam 100, and the screw 720 is connected to the bottom of the nut 730. The limit pulley is used for assisting the connecting clamping plate 300 to slide in the pushing process of the connecting clamping plate 300, and preventing the connecting clamping plate from overturning sideways.

The steel beam 100 and the bracket 200 are provided with preformed holes on the web 120 at the respective connecting ends, which are matched with the high-strength bolt holes 310 of the connecting clamping plates 300. The installation process of the connecting clamping plate 300 is shown in fig. 1, 7 and 8, and the specific steps are as follows: the method comprises the steps that firstly, sliding rails 500 are arranged at the connecting ends of two sides of a lower flange web plate of a steel beam 100, and the sliding rails 500 and a first limit baffle 600 are arranged at the connecting ends of two sides of a lower flange plate of a bracket 200; step two, hoisting the large-size connecting clamping plates 300 to the end parts of the steel beams 100, and fixing the connecting clamping plates 300 on two sides of web plates of the steel beams 100 by using temporary bolts 400; step three, welding a limiting pulley 700 on the bottom of the upper flange plate of the steel beam 100; hoisting the steel beam 100, and temporarily fixing the steel beam 100 and the bracket 200 through a second limit baffle 800; step five, removing the temporary bolts 400 of the connecting clamping plates 300, and sequentially pushing the connecting clamping plates 300 at two sides to the first limit baffle 600 along the length direction of the sliding rail 500 towards one side of the bracket 200; step six, finely adjusting the horizontal position of the connecting clamping plate 300, primarily aligning the hole sites of the connecting clamping plates 300 at two sides with reserved hole sites of the steel beam 100 and the bracket 200, and inserting pins to adjust and align all the hole sites; step seven, penetrating high-strength bolts into corresponding hole sites in sequence and screwing up the high-strength bolts; and step eight, dismantling the lower sliding rail 500, and screwing off the screw rod of the upper limiting pulley 700 to finish the clamping plate installation.

The labor-saving installation structure of the large-size steel beam connecting clamp plate is a temporary structure in the installation process of the connecting clamp plate, before the steel beam 100 is hoisted, the sliding rail 500, the connecting clamp plate 300, the limiting pulley 700 and the second limiting baffle 800 are installed on the steel beam 100, and the sliding rail 500 and the first limiting baffle 600 are installed on the bracket. Then hoist and mount girder 100, utilize slide rail 500 to support connecting splint 300 to provide the laborsaving motion along slide rail 500 direction, utilize spacing pulley 700 to support the upset of connecting splint 300 restriction connecting splint, further provide the laborsaving motion along slide rail 500 direction simultaneously, in the messenger in step five, only need alone can accomplish the promotion process of connecting splint 300. The alignment of the hole positions of the connecting clamping plates 300 is firstly combined with the height of the holes through the self height of the sliding rail 500, so that the hole positions of the connecting clamping plates 300 positioned on the sliding rail 500 are positioned at the same height as the reserved hole positions on the steel beam 100 and the bracket 200; the moving distance of the connecting clamping plate 300 is limited by the first limit baffle 600 arranged on the bracket 200, and the distance from the high-strength bolt holes on the connecting clamping plate 300 on the sliding rail 500 to the first limit baffle 600 is correspondingly proportional to the distance from the reserved holes to the first limit baffle, namely, the number of the high-strength bolt holes of the connecting clamping plate 300 is consistent with and distributed with the number of the reserved holes on the steel beam 100 and the bracket 200, and the distance from the high-strength bolt holes of the connecting clamping plate 300 to the first limit baffle 600 is proportional to the distance from the corresponding reserved holes to the first limit baffle 600.

The sliding rail 500 can adopt a finished rail, and a proper sliding rail model is selected according to the size and the weight of the connecting clamping plate 300, so that the bearing capacity, the rail length and the rail height of the sliding rail can meet the requirements. The limit pulley 700 is directly screwed off the screw rod when being dismantled, so that the limit pulley is convenient to dismantle and is beneficial to reuse. The first limit stop 600 may be cut or removed according to the actual needs of the project. If flame cutting is needed, the length of 5mm is reserved during dismantling, and the reserved part is polished by a polishing machine. The reserved length is used for preventing the flame cutting from damaging the connecting clamping plates 300 or the base metal of the steel beam 100 and ensuring the construction and installation quality.

According to the utility model, the connecting clamping plates 300 are hoisted in place along with the steel beams 100, a small number of operators can quickly and easily slide the connecting clamping plates 300 to the set positions, compared with the traditional clamping plate installation mode, the installation efficiency is greatly improved, the labor investment is reduced, the labor intensity is reduced, the installation measure cost is saved, and the defect of insufficient installation operation space and potential safety hazards caused by multi-person operation are avoided.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (9)

1. The labor-saving mounting structure for the large-size steel beam clamping plates comprises a steel beam with an upper flange plate and a lower flange plate, brackets connected with the steel beam through a second limit baffle and provided with the lower flange plate, and a connecting clamping plate fixed on the steel beam through a temporary bolt, and is characterized in that a sliding rail is arranged on the lower flange plate of the steel beam, and a limit pulley is arranged on the upper flange plate of the steel beam; the lower flange plate of the bracket is provided with a sliding rail and a first limit baffle; the connecting clamping plate is positioned on the sliding rail of the steel beam and is propped against the limiting pulley.

2. The labor-saving mounting structure of the large-size steel beam clamping plate according to claim 1, wherein the steel beam is an I-shaped section steel and comprises a lower flange plate, a web plate and an upper flange plate which are integrally formed.

3. The labor-saving mounting structure of a large-sized steel girder clamping plate according to claim 2, wherein the connecting clamping plate is fixed to both sides of a web of the steel girder by temporary bolts; the second limit baffles are symmetrically arranged on two sides of the upper surface of the upper flange plate of the steel beam.

4. The labor-saving installation structure of the large-size steel beam clamping plate according to claim 1, wherein the connecting clamping plate is of a rectangular plate structure and is provided with high-strength bolt holes which are uniformly distributed; the steel beam and the bracket are provided with preformed holes matched with the high-strength bolt holes.

5. The labor-saving mounting structure of the large-size steel beam clamping plate according to claim 4, wherein the high-strength bolt hole of the connecting clamping plate on the sliding rail is identical to the reserved hole on the steel beam and the bracket in height.

6. The labor-saving mounting structure of the large-size steel beam clamping plate according to claim 4, wherein the distance from the high-strength bolt hole of the connecting clamping plate on the sliding rail to the first limit baffle is correspondingly proportional to the distance from the reserved hole to the first limit baffle.

7. The labor-saving installation structure of the large-size steel beam clamping plate according to claim 1, wherein the sliding rail comprises a sliding groove with a U-shaped cross section, a rotating shaft which is uniformly arranged along the length direction of the sliding groove and penetrates through the sliding groove in the width direction, a pulley which is sleeved on the rotating shaft and can rotate along the rotating shaft, and a magnet which is arranged on the upper surface of the bottom of the sliding groove; the sliding rail is adsorbed to the lower flange plate of the steel beam through the magnetic force of the magnet; the connecting clamping plate is positioned above the pulley.

8. The labor-saving mounting structure of the large-size steel beam clamping plate according to claim 7, wherein the sliding rail further comprises a base plate connected to the bottom of the sliding groove and a nut positioned outside the sliding groove and connected with the rotating shaft.

9. The labor-saving mounting structure of the large-size steel beam clamping plate according to claim 1, wherein the limit pulley comprises a screw, a nut in threaded connection with the screw and a bearing sleeved on the periphery of the screw; the nut is welded on the lower surface of the upper flange plate of the steel beam.