Installation and Lifting Method of Color Steel Plate on the Outer Facade of the Cantilevered Eave of the Frame Structure

Abstract

The present invention relates to the field of building construction, and specifically to a method for installing and lifting color steel plates on the outer facade of a cantilevered eaves of a frame structure, including: establishing a three-dimensional model of a lifting tooling according to the construction design of the building structure; manufacturing the lifting tooling according to the established three-dimensional model; after the concrete project construction of the building structure and the installation of wall purlins are completed, installing the lifting tooling; conducting no-load and load running tests on the lifting tooling, and after the tests are completed, using the lifting tooling to hoist the color steel plates. By transforming an ordinary winch, components such as a traveling mechanism, a wire rope guiding mechanism, and a counterweight are added; when using this tooling to lift the color steel plates on the outer facade, the labor intensity is significantly reduced compared with the method of manual cooperation with a fixed pulley block, so the number of joints of the color steel plates can be effectively reduced; in addition, the mechanical working shifts of the tyre cranes at the construction site are saved, and at the same time, the difficulty of limited space at the construction site is effectively overcome, and the installation construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly to a method for installing and lifting color steel plates on the outer facade of a cantilevered eaves of a frame structure. Background Art

[0002] In industrial plants where vibration equipment is installed, due to restrictions in building headroom, component stiffness, and cost, concrete frame structures are often used. In addition, due to the vibration generated by equipment operation affecting the safety of the masonry maintenance structure, color steel plates are usually used as the maintenance structure for the outer facade of such industrial buildings, and the outer edge line of the color steel plate protrudes a certain distance from the edge member of the structure. To ensure the watertightness of the building, it is usually the best choice to design the building structure roof slab as a cantilevered eaves. When the building structure height is relatively large, the construction method of manually lifting the color steel plate by using a fixed pulley block is mostly used, but the labor intensity is high; when the cantilever span is relatively large, the construction method of using a tire crane to lift the color steel plate is mostly used. Due to the restriction of the crane boom structure, it is difficult to lift the first belt of color steel plates under the eaves to the required position. Summary of the Invention

[0003] In view of the above problems, an embodiment of the present invention provides a method for installing and lifting color steel plates on the outer facade of a cantilevered eaves of a frame structure.

[0004] The method for installing and lifting color steel plates on the outer facade of a cantilevered eaves of a frame structure provided by an embodiment of the present invention includes:

[0005] S1. According to the building structure construction design, establish a three-dimensional model of the lifting tooling. The lifting tooling includes a traveling mechanism and a guiding mechanism. The traveling mechanism is used to install a winch, and the guiding mechanism is fixed on one side of the traveling mechanism to guide the steel wire rope of the winch across the cantilevered eaves and then guide the steel wire rope to the outside of the wall under the cantilevered eaves;

[0006] S2. Fabricate the lifting tooling according to the established three-dimensional model;

[0007] S3. After the building structure concrete project is completed and the wall purlins are installed, install the lifting tooling;

[0008] S4. Conduct no-load and load running tests on the lifting tooling. After the tests are completed, use the lifting tooling to hoist the color steel plates.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: The ordinary winch is modified by adding components such as a traveling mechanism, a steel wire rope guiding mechanism, and a counterweight; when using this tooling to lift the color steel plates on the outer facade, the labor intensity is significantly reduced compared with the method of manual cooperation with a fixed pulley block, so the number of joints of the color steel plates can be effectively reduced; in addition, the mechanical working shifts of the tire cranes at the construction site are saved, and at the same time, the difficulties of limited construction site space are effectively overcome, and the installation construction efficiency is improved.

[0010] Optionally, S1 specifically includes:

[0011] Determine the maximum single weight of the color steel plate according to the construction design of the building structure;

[0012] Select the winch model and the rope arranging device used on the winch according to the determined maximum single weight of the color steel plate, and perform load combination calculation according to the construction site conditions to guide the design of the traveling mechanism and the guiding mechanism.

[0013] Optionally, the traveling mechanism includes a chassis and wheels arranged on the chassis through a wheel axle and bearing structure; a traction steering unit is arranged on one side of the chassis along the traveling direction, and a braking unit is arranged on the other side.

[0014] Optionally, the traction steering unit includes a hydraulic jack arranged in the chassis, a traction lever is connected to the handle of the hydraulic jack, and the plunger rod of the hydraulic jack passes through the chassis and is installed with a universal wheel.

[0015] Optionally, the braking unit includes a handle hinged to the chassis at one end, one end of an arc-shaped pulling piece is connected to the middle of the handle, the other end of the pulling piece passes through the chassis and bends towards one side wheel direction, and a brake pad is installed at the other end of the pulling piece.

[0016] Optionally, the guiding mechanism includes a bottom beam fixedly connected to the chassis, an inner vertical rod is vertically connected upwards at the outer end of the bottom beam, an upper cross beam is fixedly extended outwards at the top of the inner vertical rod, an outer vertical rod is vertically connected downwards at the outer end of the upper cross beam, the bottom end of the outer vertical rod is lower than the bottom beam by a certain distance, a lower cross beam is fixedly extended inwards at the bottom end of the outer vertical rod, and a height limiter is arranged on the lower side of the inner end of the lower cross beam; fixed pulleys are arranged at the connection corners of the inner vertical rod and the upper cross beam, the upper cross beam and the outer vertical rod, the outer vertical rod and the lower cross beam, and the inner end of the lower cross beam.

[0017] Optionally, a guiding unit opposite to the waterproof pressing head notch in the cantilevered eave is arranged on the inner vertical rod, the guiding unit includes a guiding strut hinged to the inner vertical rod, a guiding wheel is arranged on the guiding strut towards the waterproof pressing head notch side, and upper and lower support rods for detachably connecting to the inner vertical rod are arranged on the upper and lower sides of the guiding wheel.

[0018] Optionally, S2 specifically includes:

[0019] Use square steel pipes for the blanking, assembly and welding of the guiding mechanism. The butt welds are welded with grooves, full penetration, and the fillet welds are full and free of appearance defects. The fixed pulleys and guiding wheels are installed firmly without deflection;

[0020] The chassis, wheels, traction steering unit and braking unit are machined and assembled to ensure the dynamic balance of the wheels and the effective contact of the braking unit.

[0021] Optionally, S3 specifically includes:

[0022] Use a truck crane to lift the lifting tooling to the roof of the building structure;

[0023] Determine the installation position of the lifting tooling. After determining the installation position, place counterweights on the chassis and brake the brake unit;

[0024] Adjust and fix the guiding unit so that the guide wheels are stuck into the waterproof head grooves. The intersection line of the rotation plane of the guide wheels and the vertical facade of the cantilevered eaves is parallel to the traveling direction of the traveling mechanism.

[0025] Optionally, S4 specifically includes:

[0026] Vertical lifting and electrical control test of the winch under no-load;

[0027] Load test lift, vertical lift and electrical control test of the winch;

[0028] After passing the test, use the lifting tooling to lift and install the color steel plates. When a vertical column of color steel plates on the exterior facade of the building structure is installed, jack up the universal wheels downward, turn the handle to release the brake pads, move the lifting tooling to the next installation position. After adjusting the attitude of the tooling, lift the universal wheels upward, turn the handle to tighten the brake pads and continue to install the color steel plates until the installation of the color steel plates on the exterior facade is completed. Description of the Drawings

[0029] The drawings described herein are used to provide a further understanding of the present invention, form a part of this application, and do not limit the present invention. In the drawings:

[0030] Figure 1 Is the construction effect diagram of a lifting tooling provided by an embodiment of the present invention;

[0031] Figure 2 Is the structural schematic diagram of a lifting tooling provided by an embodiment of the present invention Figure 1 ;

[0032] Figure 3 Is the structural schematic diagram of a lifting tooling provided by an embodiment of the present invention Figure 2 ;

[0033] Figure 4 Is the structural schematic diagram of a guiding mechanism provided by an embodiment of the present invention Figure 1 ;

[0034] Figure 5 Is the structural schematic diagram of a traveling mechanism provided by an embodiment of the present invention Figure 1 ;

[0035] Figure 6 Is the structural schematic diagram of a traveling mechanism provided by an embodiment of the present invention Figure 2 ;

[0036] Figure 7 This is a schematic structural diagram of a guiding unit provided by an embodiment of the present invention.

[0037] Among them, 1, traveling mechanism; 2, guiding mechanism; 3, winch; 4, cantilevered eaves; 5, wall surface; 6, purlin; 7, color steel plate; 8, rope arranging device; 9, height limiter; 10, chassis; 11, wheel; 12, traction steering unit; 13, braking unit; 14, hydraulic jack; 15, traction pressure bar; 16, universal wheel; 17, handle; 18, pull tab; 19, brake pad; 20, bottom beam; 21, inner vertical pole; 22, upper cross beam; 23, outer vertical pole; 24, lower cross beam; 25, fixed pulley; 26, waterproof pressing head notch; 27, guiding unit; 28, guiding support rod; 29, guiding wheel; 30, upper support rod; 31, lower support rod. Specific embodiments

[0038] In order to make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the embodiments and the drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but not to limit the present invention.

[0039] See Figures 1-7 , a method for installing and lifting the color steel plate on the outer facade of the cantilevered eaves of a frame structure provided by an embodiment of the present invention, includes:

[0040] S1. According to the construction design of the building structure, establish a three-dimensional model of the lifting tooling. The lifting tooling includes: a traveling mechanism 1 and a guiding mechanism 2. The traveling mechanism 1 is used to install a winch 3, and the guiding mechanism 2 is fixed on one side of the traveling mechanism 1 to guide the steel wire rope of the winch 3 across the cantilevered eaves and then guide the steel wire rope to the outside of the wall surface 5 under the cantilevered eaves 4;

[0041] S2. Manufacture the lifting tooling according to the established three-dimensional model;

[0042] S3. After the concrete project of the building structure is completed and the purlins 6 of the wall surface 5 are installed, install the lifting tooling;

[0043] S4. Conduct no-load and load running tests on the lifting tooling, and after the tests are completed, use the lifting tooling to hoist the color steel plate 7.

[0044] During implementation, S1 specifically includes:

[0045] Determine the maximum single weight of the color steel plate 7 according to the construction design of the building structure; the width of the color steel plate 7 adopts the width of the steel coil, the length is not less than the distance between two purlins 6, and the thickness is determined according to the drawing. After determining the dimensions, the maximum single weight of the color steel plate 7 can be determined;

[0046] Select the model of the hoist 3 and the rope arranging device 8 used on the hoist 3 according to the determined maximum single weight of the color steel plate 7. Conduct load combination calculations according to the construction site conditions to guide the design of the traveling mechanism 1 and the guiding mechanism 2. According to the maximum single weight of the color steel plate 7, considering that the safety factor is not less than 2, select the corresponding hoist 3, and the basic performance of the hoist 3 should meet the basic performance requirements of Section 5.3 of the current "Construction Hoist" (GB / T 1955) specification; design the guiding mechanism 2 composed of steel frames, fixed pulleys, etc. according to the breaking force of the steel wire rope in the hoist 3; design the traveling mechanism 1 according to the torque generated on the steel frame before the steel wire rope breaks, and select the counterweight combination. In addition, a height limiter 9 is designed at the fixed pulley under the eaves in the guiding mechanism 2, and a rope arranging device 8 is arranged on the rolling support of the hoist 3.

[0047] During implementation, the traveling mechanism 1 includes a chassis 10 and wheels 11 arranged on the chassis 10 through a wheel axle and bearing structure; a traction steering unit 12 is arranged on one side of the chassis 10 along the traveling direction, and a braking unit 13 is arranged on the other side.

[0048] During implementation, the traction steering unit 12 includes a hydraulic jack 14 arranged in the chassis 10. The handle of the hydraulic jack 14 is connected with a traction lever 15. The plunger rod of the hydraulic jack 14 passes through the chassis 10 and is installed with a universal wheel 16. When walking straight, the traction lever 15 can be held by hand to pull the lifting tooling to walk; when steering, the traction lever 15 is rotated up and down. The universal wheel 16 is placed on the walking plane through the hydraulic jack 14, and one side of the wheel 11 is slightly lifted. Hold the traction lever 15 by hand and pull the lifting tooling to turn; when steering, judge whether it is necessary to remove the outer vertical pole and the lower cross beam according to the on-site situation.

[0049] During implementation, the braking unit 13 includes a handle 17 whose one end is hinged to the chassis 10. The middle of the handle 17 is connected with one end of an arc-shaped pull piece 18. The other end of the pull piece 18 passes through the chassis 10 and bends towards one side of the wheel 11, and a brake pad 19 is installed at the other end of the pull piece 18. When braking, the handle 17 is rotated so that the brake pad 19 is pressed against the wheel 11 through the pull piece 18 to receive force. The brake pad 19 generates a planar bending deformation, and both ends contact the wheel 11 to generate sliding friction, so that the lifting tooling decelerates or stops moving.

[0050] During implementation, the guiding mechanism 2 includes a bottom beam 20 for fixedly connecting with the chassis 10. The outer end of the bottom beam 20 is vertically connected upward with an inner vertical rod 21. The top end of the inner vertical rod 21 extends outward and is fixedly connected with an upper cross beam 22. The outer end of the upper cross beam 22 is vertically connected downward with an outer vertical rod 23. The bottom end of the outer vertical rod 23 is lower than the bottom beam 20 by a certain distance. The bottom end of the outer vertical rod 23 extends inward and is fixedly connected with a lower cross beam 24. A height limiter 9 is arranged on the lower side of the inner end of the lower cross beam 24. Fixed pulleys 25 are arranged at the connecting corners of the inner vertical rod 21 and the upper cross beam 22, the upper cross beam 22 and the outer vertical rod 23, the outer vertical rod 23 and the lower cross beam 24, and the inner end of the lower cross beam 24. After the steel wire rope in the winch 3 bypasses each fixed pulley 25, it passes through the through hole in the height limiter 9.

[0051] During implementation, a guiding unit 27 opposite to the waterproof pressing head notch 26 in the cantilevered eave 4 is arranged on the inner vertical rod 21. The guiding unit 27 includes a guiding support rod 28 hinged with the inner vertical rod 21. A guiding wheel 29 is arranged on the guiding support rod 28 towards the side of the waterproof pressing head notch 26. Upper support rods 30 and lower support rods 31 for detachably connecting with the inner vertical rod 21 are arranged on the upper and lower side surfaces of the guiding wheel 29.

[0052] During implementation, S2 specifically includes:

[0053] Square steel pipes are used for cutting, assembling and welding of the guiding mechanism 2. The butt welds are welded with grooves, full penetration, and the fillet welds are plump without appearance defects. The fixed pulleys 25 and the guiding wheels 29 are installed firmly without deviation.

[0054] The chassis 10, the wheels 11, the traction steering unit 12 and the brake unit 13 are machined and assembled to ensure the dynamic balance of the wheels 11 and the effective contact of the brake unit 13.

[0055] During implementation, S3 specifically includes:

[0056] Use a truck crane to lift the lifting tooling to the roof of the building structure; use the four lifting lugs of the walking chassis 10 for hoisting; assemble the steel frame and adjust the height and arm length of the guiding mechanism 2 steel frame according to the actual situation of the roof;

[0057] Determine the installation position of the lifting tooling. After determining the installation position, place counterweights on the chassis 10 and brake the brake unit 13;

[0058] Adjust and fix the guiding unit 27 so that the guiding wheel 29 is stuck into the waterproof pressing head notch 26, and the intersection line of the rotating plane of the guiding wheel 29 and the vertical surface of the cantilevered eave 4 is parallel to the traveling direction of the traveling mechanism 1.

[0059] Adjust the height limiter 9 and the rope arranging device 8; check the ground insulation resistance of the motor, electrical components and electrical circuits of the hoist 3; check the short circuit, overcurrent, undervoltage, wrong and open / phase failure protection, fusing and the interface of the limit switch.

[0060] During implementation, S4 specifically includes:

[0061] The no-load vertical lifting and electrical control test of the hoist 3; check the interlock function to prevent simultaneous forward and reverse operation, the function or facility to stop running when the control signal fails; the remote control and other operating systems shall not work simultaneously; confirm that each mechanism operates normally without abnormal noise, the operating system, brake, stopper, etc. are reliable, each fastener and connector is firm, and the creep and sealing conditions;

[0062] The load test hoisting, vertical lifting and electrical control test of the hoist 3; measure the rated speed, noise, braking distance, reduced voltage starting, overload test, stopper test, temperature rise test and reliability test and record the test results;

[0063] After the test is qualified, use the lifting tooling to lift and install the color steel plate 7. When a vertical row of color steel plates 7 on the outer wall surface 5 of the building structure is installed, jack up the universal wheel 16 downward, turn the handle 17 to release the brake pad 19, move the lifting tooling to the next installation position, adjust the attitude of the tooling, then lift the universal wheel 16 upward, turn the handle 17 to tighten the brake pad 19 and continue to install the color steel plate 7 until the installation of the color steel plates 7 on the outer wall surface is completed.

[0064] The above are only the preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A method for installing and lifting colored steel plates on the exterior facade of a cantilevered eaves of a frame structure, characterized in that: include: S1. According to the design of the building structure construction, a three-dimensional model of the lifting tooling is established. The lifting tooling includes: a traveling mechanism and a guiding mechanism. The traveling mechanism is used to install the winch. The guiding mechanism is fixed on one side of the traveling mechanism and is used to guide the steel wire rope of the winch to the outer side of the wall below the cantilevered eaves after the steel wire rope crosses the cantilevered eaves. S2. Produce lifting tooling according to the established three-dimensional model; S3. After the construction of the building structure concrete engineering is completed and the wall purlins are installed, the lifting tooling is installed; S4. Carry out no-load and load operation tests on the lifting tooling. After the tests are completed, use the lifting tooling to lift the color steel plate; The guide mechanism includes a bottom beam for being fixedly connected to the chassis, the outer end of the bottom beam is vertically connected to an inner vertical rod upward, the top end of the inner vertical rod is extended outwardly to be fixed with an upper horizontal beam, the outer end of the upper horizontal beam is vertically connected to an outer vertical rod downward, the bottom end of the outer vertical rod is lower than the bottom beam by a certain distance, the bottom end of the outer vertical rod is extended inwardly to be fixed with a lower horizontal beam, and a height limiter is arranged on the lower side of the inner end of the lower horizontal beam; fixed pulleys are arranged at the corner where the inner vertical rod is connected to the upper horizontal beam, the corner where the upper horizontal beam is connected to the outer vertical rod, the corner where the outer vertical rod is connected to the lower horizontal beam, and the inner end of the lower horizontal beam; A guide unit is provided on the inner pole, which is opposite to the waterproof pressure head slot in the cantilevered eaves. The guide unit includes a guide support rod hinged to the inner pole, a guide wheel is provided on the guide support rod on the side facing the waterproof pressure head slot, and an upper support rod and a lower support rod for detachably connecting with the inner pole are provided on the upper and lower sides of the guide wheel; S3 specifically includes: Use a truck crane to lift the lifting equipment to the roof of the building structure; Determine the installation position of the lifting tooling, place the counterweight on the chassis after the installation position is determined, and apply the brake unit to brake; The guide unit is adjusted and fixed so that the guide wheel is inserted into the waterproof pressure head slot, and the rotation plane of the guide wheel is parallel to the intersection line of the cantilevered eaves facade and the travel direction of the travel mechanism.

2. The method for installing and lifting the color steel plate of the cantilevered eaves of the frame structure according to claim 1 is characterized in that: S1 specifically includes: Determine the maximum unit weight of the color steel plate according to the building structure construction design; The winch model and the rope arranger used on the winch are selected according to the determined maximum single weight of the color steel plate, and the load combination calculation is carried out according to the working conditions of the construction site to guide the design of the walking mechanism and the guide mechanism.

3. The method for installing and lifting the color steel plate of the cantilevered eaves of the frame structure according to claim 2 is characterized in that: The traveling mechanism comprises a chassis and wheels arranged on the chassis through a wheel axle and a bearing structure; a traction steering unit is arranged on one side of the chassis along the traveling direction, and a brake unit is arranged on the other side.

4. The method for installing and lifting the color steel plate of the cantilevered eaves of the frame structure according to claim 3 is characterized in that: The traction steering unit comprises a hydraulic jack arranged in a chassis, a handle of the hydraulic jack is connected with a traction pressure rod, and a plunger rod of the hydraulic jack passes through the chassis and is equipped with a universal wheel.

5. The method for installing and lifting the color steel plate of the cantilevered eaves of the frame structure according to claim 4 is characterized in that: The brake unit includes a handle with one end hinged to the chassis, the middle of the handle is connected to one end of an arc-shaped pull tab, the other end of the pull tab passes through the chassis and bends toward one side of the wheel, and the other end of the pull tab is equipped with a brake pad.

6. The method for installing and lifting the color steel plate of the cantilevered eaves of the frame structure according to claim 1, characterized in that: S2 specifically includes: Square steel pipes are used for cutting, assembling and welding of the guide mechanism. The butt welds are groove welded to achieve full penetration. The fillet welds are full and free of appearance defects. The fixed pulleys and guide wheels are firmly installed without deflection. The chassis, wheels, traction steering unit and brake unit are machined and assembled to ensure dynamic balance of the wheels and effective contact of the brake unit.

7. The method for installing and lifting the color steel plate of the cantilevered eaves of the frame structure according to claim 1, characterized in that: S4 specifically includes: No-load vertical lifting and electrical control test of winch; Winch load test, vertical lifting and electrical control test; After the test is passed, use the lifting tool to lift and install the color steel plate. When a row of color steel plates on the vertical facade of the building structure is installed, lift the universal wheel downward, turn the handle to release the brake pad, move the lifting tool to the next installation position, adjust the tool posture, lift the universal wheel upward, turn the handle to tighten the brake pad and continue to install the color steel plate until the installation of the facade color steel plate is completed.

Images