CN112160577B - Construction method for beam column connection operation by using aerial work platform device - Google Patents

Abstract

The invention relates to a construction method for beam-column connection operation by using an aerial work platform device, which comprises the steps of firstly manufacturing the aerial work platform device, wherein the aerial work platform device comprises a bracket main body, a lifting hook mechanism and a sliding mechanism; the bracket main body is of a square frame structure, and two struts at the front end of the bracket main body are connected with connecting rods; the lifting hook mechanism comprises two groups of main lifting hook components and one group of auxiliary lifting hook components, the main lifting hook components are arranged at the upper ends of the two pillars at the front end of the support main body, and the auxiliary lifting hook components are connected to the connecting rod; when construction is carried out, an operator goes down to the device to carry out operation of a beam-column connection node, and after construction of the node is completed, the operator goes up to the steel beam and locks the device on the steel beam by using the auxiliary hook component; vertically contacting a pulley of the sliding mechanism with the side surface and the top surface of an upper flange plate of the steel beam, and then keeping the auxiliary hook assembly at a position just separated from the contact position with the steel beam; after the work is finished, the operator can easily pull the device to the required working position.

Description

Construction method for beam column connection operation by using aerial work platform device

The technical field is as follows:

the invention relates to a construction method for beam-column connection operation by using an aerial work platform device, belonging to the field of construction of constructional engineering.

Second, background Art

The frame of the high-rise building adopts a steel frame structure at present, the welding quality of steel structures such as beam columns and the like is very important in the installation process of the high-rise steel structure, and whether tools and methods adopted by welding are safe, simple and convenient is directly related to the quality of engineering. Therefore, how to ensure an important link in the steel structure construction process during safe operation. In the prior art, a hanging basket scaffold is usually used or an aerial work platform device is used for operation, but the hanging basket scaffold is large in workload, time-consuming and labor-consuming, and safety accidents are easy to occur when the hanging basket scaffold is erected. In addition, the basket scaffold is not suitable for the work of the high-altitude steel structure due to the complexity of the steel structure.

Although the aerial work platform device in the prior art can solve the adverse conditions caused by a hanging basket scaffold, after construction of one node where a steel beam is connected with a column is completed, the aerial work platform device needs to be manually carried or moved to another node where the steel beam is connected with the column by a crane for operation, the aerial work platform device is manually carried, the potential safety hazard is large, and the construction cost is increased if the crane is used for moving the aerial work platform device.

Thirdly, the invention content:

aiming at the defects of the prior art, the invention provides a construction method for beam-column connection operation by using an aerial work platform device, which is simple to operate and convenient to use.

The technical scheme adopted by the invention is as follows:

the invention relates to a construction method for beam column connection operation by utilizing an aerial work platform device, which comprises the following steps of firstly manufacturing the aerial work platform device, wherein the aerial work platform device comprises a bracket main body, a lifting hook mechanism fixedly connected with the bracket main body and a sliding mechanism convenient for the displacement of the device; the support main body comprises two pillars which are arranged at the front end in a front-back, left-right and opposite parallel mode and two stand columns which are arranged at the rear end in a parallel mode, a square frame structure is formed by enclosing the pillars and the stand columns through a plurality of cross rods respectively, the upper ends of the pillars are connected into a whole through connecting rods, and a bottom plate is installed at the bottom of the support main body; the lifting hook mechanism comprises two groups of main lifting hook components and one group of auxiliary lifting hook components, the main lifting hook components are respectively and symmetrically connected to the upper end of the strut, and the auxiliary lifting hook components are connected to the connecting rod; each group of main lifting hook assemblies comprises a fixed plate, a screw rod connected to the fixed plate through a bolt, and a sliding mechanism, a lifting hook and a nut which are sequentially sleeved on the screw rod in the direction close to the fixed plate, wherein the screw rod is provided with a thread in a through length mode, one end of the screw rod, connected with the fixed plate, is processed into a square flat shape, a bolt hole is formed in the square flat shape, and the fixed plate is welded at the upper end of the strut; the auxiliary lifting hook assembly comprises a sliding block, a screw rod welded on the sliding block, a lifting hook and a nut which are sequentially sleeved on the screw rod in the direction close to the sliding block; the sliding block is sleeved on the connecting rod; the lifting hook is C-shaped, the upper end of the lifting hook is sleeved on the screw rod, threads are machined on a vertical rod of the lifting hook, and a sliding mechanism is sleeved on the vertical rod of the lifting hook on each group of main lifting hook assemblies; the sliding mechanism comprises a connecting sleeve and a pulley, and the pulley is welded in the middle of the connecting sleeve; the connecting sleeve is internally provided with a screw thread matched with a screw rod connected with the connecting sleeve or a vertical rod of a lifting hook, and the nut is in threaded connection with the screw rod. During construction, the connecting sleeve rotates in the direction to ensure that the pulley does not contact with a steel beam after the device is hung on the steel beam, then the device is placed on the steel beam by a crane, the steel beam is hooked by the hooks on the two groups of main hook assemblies and the hooks are locked on the steel beam by nuts, finally an operator carries out operation of a joint between the steel beam and a column from the upper part and the lower part of the steel beam to the aerial work platform device, when the joint is constructed, the operator moves the device from the device to the steel beam, and when the device needs to be moved to the other joint for operation, the auxiliary hook assemblies are firstly moved to the middle positions of the two groups of main hook assemblies, the steel beam is hooked by the hooks on the auxiliary hook assemblies and the hooks are locked on the steel beam by the nuts; then loosening the nut on the main hook component on one side, rotating a connecting sleeve connected to the lifting hook and the screw rod on the main hook component to enable the pulley connected with the main hook component to be vertically contacted with the side surface and the top surface of the flange plate on the steel beam respectively, and then locking the nut on the main hook component; then loosening the nut on the main hook component on the other side, rotating a connecting sleeve connected to the lifting hook and the screw rod on the main hook component to enable the pulley connected with the main hook component to be vertically contacted with the side surface and the top surface of the flange plate on the steel beam respectively, and then locking the nut on the main hook component; finally, loosening the nut on the auxiliary lifting hook assembly, and enabling the lifting hook on the auxiliary lifting hook assembly to be just separated from being in contact with the steel beam; after the work is finished, the operator can easily pull the device to the required working position.

In order to achieve better technical effects, the further technical improvement further comprises that the height of two support columns 2 arranged at the front end in parallel in the support main body 1 of the aerial work platform device is higher than the height of two stand columns 4 arranged at the rear end in parallel.

In order to obtain better technical effect, the further technical improvement comprises that the top ends of the support columns 2 and the top ends of the upright columns 4 of the aerial work platform device are fixedly connected through diagonal draw bars 5.

In order to achieve better technical effects, further technical improvements include that the connecting rod and the sliding block are steel pipes, and the sliding block can slide on the connecting rod.

The invention has the following beneficial and positive effects:

the invention has simple structure, convenient installation, strong universality and convenient operation, adopts novel structural design, installs the bracket main body on the steel beam through the hook component, is suitable for the steel beams with different sizes, is light and firm, is safe and convenient to carry, can be pushed or pulled to a construction part only by manpower when the device is shifted, does not need to be carried manually or adopts a crane to hoist the construction part, reduces the operation risk and the hoisting cost, has high construction efficiency and low construction cost.

Description of the drawings

FIG. 1: the invention is a schematic structural diagram

FIG. 2: the invention is illustrated in the displacement

FIG. 3: the connection between the screw and the fixing plate of the invention is schematically illustrated

Fifth, detailed description of the invention

The first embodiment is as follows: referring to fig. 1, 2 and 3, the invention relates to a beam-column connection construction method by using an aerial work platform device, which comprises the steps of firstly manufacturing the aerial work platform device, wherein the aerial work platform device comprises a bracket main body 1, a hook mechanism fixedly connected with the bracket main body 1 and a sliding mechanism 8 convenient for the displacement of the device; the support main body 1 comprises two pillars 2 which are arranged at the front end in a front-back, left-right and opposite parallel manner and two upright posts 4 which are arranged at the rear end in a parallel manner, the pillars 2 and the upright posts 4 are respectively enclosed into a square frame structure through a plurality of cross rods 3, the upper ends of the pillars 2 are connected into a whole through connecting rods 6, and a bottom plate is arranged at the bottom of the support main body 1; the lifting hook mechanism comprises two groups of main lifting hook components 13 and one group of auxiliary lifting hook components 14, the main lifting hook components 13 are respectively and symmetrically connected to the upper end of the strut 2, and the auxiliary lifting hook components 14 are connected to the connecting rod 6; each group of main hook assemblies 13 comprises a fixed plate 17, a screw 12 connected to the fixed plate 17 through a bolt 15, and a sliding mechanism 8, a hook 16 and a nut 11 which are sequentially sleeved on the screw 12 in the direction close to the fixed plate 17, wherein the screw 12 is provided with a thread in a through manner, one end of the screw connected with the fixed plate 17 is processed into a square flat shape and provided with a bolt hole, and the fixed plate 17 is welded at the upper end of the pillar 2; the auxiliary hook assembly 14 comprises a sliding block 7, a screw rod 12 welded on the sliding block 7, and a hook 16 and a nut 11 which are sequentially sleeved on the screw rod 12 in the direction close to the sliding block 7; the sliding block 7 is sleeved on the connecting rod 6; the lifting hook 16 is C-shaped, the upper end of the lifting hook 16 is sleeved on the screw 12, threads are processed on the vertical rod of the lifting hook 16, and the vertical rod of the lifting hook 16 on each group of main lifting hook assemblies 13 is sleeved with the sliding mechanism 8; the sliding mechanism 8 comprises a connecting sleeve 9 and a pulley 10, and the pulley 10 is welded in the middle of the connecting sleeve 9; the connecting sleeve 9 is internally provided with a screw 12 connected with the connecting sleeve or a thread matched with a vertical rod of a lifting hook 16, and the nut 11 is in threaded connection with the screw 12.

The connecting rod 6 and the sliding block 7 are steel pipes, and the sliding block 7 can slide on the connecting rod 6.

Two parallel arrangement in support main part 1 are higher than two stands 4 of parallel arrangement at the rear end according to the height of pillar 2, the top of pillar 2 with the top of stand 4 all is connected fixedly through diagonal draw bar 5.

During construction, the connecting sleeve 9 is rotated to ensure that the pulley 10 is not contacted with a steel beam after the device is hung on the steel beam, then the device is placed on the steel beam by a crane, the steel beam is hooked by the hooks 16 on the two groups of main hook components 13 and the hooks 16 are locked on the steel beam by the nuts 11, finally an operator carries out operation of connecting a joint of the steel beam and a column from the upper part and the lower part of the steel beam to the aerial work platform device, when the construction of the joint is finished, the operator moves the device from the device to the steel beam, when the device needs to be moved to the other joint of the steel beam and the column for operation, the auxiliary hook component 14 is firstly moved to the middle position of the two groups of main hook components 13, the steel beam is hooked by the hooks 16 on the auxiliary hook component 14 and the hooks 16 are locked on the steel beam by the nuts 11; then loosening the nut 11 on the main hook component 13 on one side, rotating the connecting sleeve 9 connected to the lifting hook 16 and the screw 12 on the main hook component 13 to enable the pulley 10 connected with the main hook component to be vertically contacted with the side surface and the top surface of the flange plate on the steel beam respectively, and then locking the nut 11 on the main hook component 13; then loosening the nut 11 on the main hook component 13 on the other side, rotating the connecting sleeve 9 connected to the lifting hook 16 and the screw 12 on the main hook component 13 to enable the pulley 10 connected with the main hook component to be vertically contacted with the side surface and the top surface of the flange plate on the steel beam respectively, and then locking the nut 11 on the main hook component 13; finally, loosening the nut 11 on the auxiliary hook component 14, and just separating the hook 16 on the auxiliary hook component 14 from being in contact with the steel beam; after the work is finished, the operator can easily pull the device to the required working position.

Claims (4)

1. A construction method for beam-column connection operation by using an aerial work platform device is characterized by comprising the following steps: firstly, manufacturing an aerial work platform device, wherein the aerial work platform device comprises a bracket main body (1), a hook mechanism fixedly connected with the bracket main body (1), and a sliding mechanism (8) convenient for the device to move; the support main body (1) comprises two pillars (2) which are arranged at the front end in a front-back, left-right and opposite parallel manner and two upright posts (4) which are arranged at the rear end in a parallel manner, the pillars (2) and the upright posts (4) are respectively surrounded into a square frame structure through a plurality of cross rods (3), the upper ends of the pillars (2) are connected into a whole through connecting rods (6), and a bottom plate is arranged at the bottom of the support main body (1); the lifting hook mechanism comprises two groups of main lifting hook components (13) and one group of auxiliary lifting hook components (14), the main lifting hook components (13) are respectively and symmetrically connected to the upper end of the strut (2), and the auxiliary lifting hook components (14) are connected to the connecting rod (6); each group of main hook assemblies (13) comprises a fixing plate (17), a screw rod (12) connected onto the fixing plate (17) through a bolt (15), a sliding mechanism (8), a hook (16) and a nut (11) which are sequentially sleeved on the screw rod (12) in a direction close to the fixing plate (17), threads are machined on the screw rod (12) in a through-long mode, a square flat shape is machined at one end, connected with the fixing plate (17), of the screw rod, a bolt hole is formed in the end, and the fixing plate (17) is welded to the upper end of the strut (2); the auxiliary lifting hook assembly (14) comprises a sliding block (7), a screw rod (12) welded on the sliding block (7), a lifting hook (16) and a nut (11) which are sequentially sleeved on the screw rod (12) in the direction close to the sliding block (7); the sliding block (7) is sleeved on the connecting rod (6); the lifting hook (16) is C-shaped, the upper end of the lifting hook (16) is sleeved on the screw rod (12), threads are processed on the vertical rod of the lifting hook (16), and a sliding mechanism (8) is sleeved on the vertical rod of the lifting hook (16) on each group of main lifting hook assemblies (13); the sliding mechanism (8) comprises a connecting sleeve (9) and a pulley (10), and the pulley (10) is welded in the middle of the connecting sleeve (9); the connecting sleeve (9) is internally provided with threads matched with a screw rod (12) or a vertical rod of a lifting hook (16) connected with the connecting sleeve, and the nut (11) is in threaded connection with the screw rod (12); when in construction, the connecting sleeve (9) is rotated to ensure that the device is hung on a steel beam, the pulley (10) is not contacted with the steel beam, then the device is placed on the steel beam by a crane, the steel beam is hooked by the lifting hooks (16) on the two groups of main lifting hook assemblies (13) and the lifting hooks (16) are locked on the steel beam by nuts (11), and finally an operator carries out the operation of the steel beam and column connecting node from the steel beam to the aerial work platform device, when the construction of the node is completed, the operator moves the device from the device to the steel beam, when the device needs to be moved to another node where the steel beam is connected with the column, firstly, the auxiliary hook component (14) is shifted to the middle position of two groups of main hook components (13), a lifting hook (16) on the auxiliary hook component (14) is used for hooking a steel beam, and a nut (11) is used for locking the lifting hook (16) on the steel beam; then loosening a nut (11) on a main hook component (13) on one side, rotating a connecting sleeve (9) connected to a hook (16) and a screw rod (12) on the main hook component (13), enabling a pulley (10) connected with the main hook component to be vertically contacted with the side surface and the top surface of an upper flange plate of the steel beam respectively, and then locking the nut (11) on the main hook component (13); then loosening the nut (11) on the main hook component (13) on the other side, rotating a connecting sleeve (9) connected to a lifting hook (16) and a screw rod (12) on the main hook component (13), enabling a pulley (10) connected with the main hook component to be vertically contacted with the side surface and the top surface of the upper flange plate of the steel beam respectively, and then locking the nut (11) on the main hook component (13); finally, loosening the nut (11) on the auxiliary lifting hook component (14) and just separating the lifting hook (16) on the auxiliary lifting hook component (14) from being in contact with the steel beam; after the work is finished, the operator can easily pull the device to the required working position.

2. The construction method for beam-column connection operation by using the aerial work platform device as claimed in claim 1, wherein: the height of two support columns (2) arranged at the front end in parallel in the support main body (1) is higher than the height of two upright columns (4) arranged at the rear end in parallel.

3. The construction method for beam-column connection operation by using the aerial work platform device as claimed in claim 2, wherein: the top ends of the pillars (2) and the top ends of the upright posts (4) are fixedly connected through diagonal draw bars (5).

4. A construction method for beam column connection work using an aerial work platform device as claimed in any one of claims 1 to 3, wherein: the connecting rod (6) and the sliding block (7) are steel pipes, and the sliding block (7) can slide on the connecting rod (6).

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