CN106812331B - Manufacturing method of pre-assembled elevator shaft hard protection and protective pipe frame - Google Patents
Manufacturing method of pre-assembled elevator shaft hard protection and protective pipe frame Download PDFInfo
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- CN106812331B CN106812331B CN201710207379.7A CN201710207379A CN106812331B CN 106812331 B CN106812331 B CN 106812331B CN 201710207379 A CN201710207379 A CN 201710207379A CN 106812331 B CN106812331 B CN 106812331B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 230000001681 protective effect Effects 0.000 title description 3
- 238000010276 construction Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 72
- 239000010959 steel Substances 0.000 claims description 72
- 238000009434 installation Methods 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3252—Protections, e.g. cover, caps, against impaling on starter reinforcement bars
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Abstract
The invention discloses a manufacturing method of pre-assembled elevator shaft hard protection and a pipe protection frame, wherein the length of each rod piece is calculated according to the size of an elevator shaft → a T-shaped rotating member of a welding center shaft → pre-assembly on the ground → a tower crane for integral hard protection is hoisted into the elevator shaft and is manually assisted to be in place → rubbish sundries on a template are cleaned → the tower crane is adopted to integrally lift layer by layer. The A-piece pipe frame and the B-piece pipe frame can realize folding and unfolding back support through the rotating shaft T-shaped rotating component. The elevator lifting device can be assembled on the ground, then can be directly lifted into an elevator shaft by a tower crane to be placed, can be lifted layer by the tower crane in the lifting process without disassembly, is convenient and quick, has good safety, is made of materials commonly used in construction sites, and has the advantages of simple manufacture, good applicability and strong popularization.
Description
Technical Field
The invention relates to the field of buildings, and is mainly used for elevator shaft hard protection of high-rise and super high-rise civil buildings in the construction process.
Background
With the continuous development of the construction industry, the novel production modes of assembly, mechanization and environmental protection are gradually expanded, and the traditional labor operation with high intensity, high risk and high consumption is required to be gradually improved. Among them, the protection of elevator shaft in high-rise building is as the important one of "three treasures, four departments, five face limit" middle "four departments" of the production construction of building field, has received the high attention of many scholars, expert and government leader because of its high risk for a long time. On the basis of technical specifications for high-altitude operation in building construction and a plurality of regulations for preventing high-altitude falling accidents in building engineering, the setting requirements for the hard protection of the elevator shaft are also met in succession in a plurality of domestic areas and some large and medium-sized building enterprises.
At present, the common method of hard protection of an elevator shaft is to make hard protection at the lower layer of a construction layer for preventing sundries such as construction layer fasteners, concrete, battens and the like from falling to hurt people, and protection pocket nets are arranged at the lower layers of the elevator shaft to prevent people from falling down; in stricter areas and enterprises, hard protection is also performed every 10 meters, and a protective pocket net is arranged between 10 meters for soft protection. From the perspective of construction experience, although hard protection is not mandatory and specified like soft protection, the importance and the necessity of hard protection are widely accepted by the society, because concrete is inevitably spilled in the construction process, particularly in the concrete pouring process, the soft protection on the lower layer can be broken or corroded while the risk of falling objects is caused, and serious potential safety hazards are caused to construction.
The erection of the hard protection of the elevator shaft is usually that a worker gradually props the steel pipe to the wall of the elevator shaft one by one from the floor, then fixes the horizontal pipe one by one from one side of the floor, and the reverse order goes on when dismantling. Because the dead weight of long steel pipe is great, the well depth all is more than two meters again, singly lean on workman's both hands to encorbelment at well mouth adjacent side and set up the protection frame danger coefficient big. Therefore, the development of the elevator shaft hard protection which is convenient, fast and good in safety is required.
Disclosure of Invention
The invention aims to provide a manufacturing method of pre-assembled elevator shaft hard protection, which can effectively reduce labor intensity, reduce operation risk and improve material turnover rate. Compared with the existing elevator shaft hard protection erection, workers of the method do not need to be erected by overhanging at the edge of the shaft during working, do not need to fix a transverse pipe and a template in the shaft, do not need to disassemble and assemble and lift layer by layer, and can greatly improve labor and working efficiency.
The technical scheme adopted by the invention is as follows:
a manufacturing method of pre-assembled elevator shaft hard protection comprises the following steps,
step 1: calculating the lengths of all the pipe frames in the A and B pipe frames according to the size of the elevator shaft, and calculating the sizes of the A and B templates; the depth direction frame pipes of the A piece pipe frames and the B piece pipe frames are longer than the depth direction width D of the elevator shaft, the depth extending pipe fittings are fixed on the depth direction frame pipes or the depth direction frame pipes of the A piece pipe frames and the B piece pipe frames, and the length of the depth direction frame pipes of the A piece pipe frames is shorter than the width L of the elevator shaft in the depth direction but is longer than L/2; the length of the interval direction frame pipe of the B piece of pipe frame is less than the width L of the elevator shaft in the interval direction; sequentially fixing the pipe frames by using right-angle fasteners to form an A-piece pipe frame and a B-piece pipe frame; the A piece template and the B piece template are respectively fixed at the upper ends of the A piece tube frame and the B piece tube frame and respectively cover the A piece tube frame and the B piece tube frame;
step 2: welding a rotating shaft T-shaped rotating member, wherein the rotating shaft T-shaped rotating member comprises a steel sleeve and a vertical pipe fitting;
and 3, step 3: pre-assembling on the ground; taking a depth direction frame pipe adjacent to the A-piece pipe frame and the B-piece pipe frame as a rotating shaft, sequentially sleeving steel sleeve pipes of a plurality of rotating shaft T-shaped rotating members on the rotating shaft, and sequentially fixing vertical pipe fittings of the rotating shaft T-shaped rotating members on an opening direction frame pipe and a depth direction frame pipe of the B-piece pipe frame through rotating fasteners; therefore, the A piece pipe frame and the B piece pipe frame are connected into a whole;
and 4, step 4: hoisting the whole hard protection tower crane into the elevator shaft and manually assisting to take place; a steel wire rope of the tower crane penetrates through a hanging ring of the rotating member, and then the steel wire rope is slowly lifted and falls into an elevator shaft of a high-rise building; after the steel pipe frame is positioned on a construction layer, workers are arranged to temporarily wind a manual assisting rope on a shear wall of the construction layer, the hard protection A piece pipe frame and the B piece pipe frame are unfolded into planes through adjusting the length of the manual assisting rope, after the steel pipe frame falls to the next layer of the construction layer, a final protection plane is realized through the compression joint of the A piece pipe frame and the B piece pipe frame steel pipe under the self gravity action of hard protection, an included angle of 15-30 degrees is formed between a depth extending pipe fitting of the A piece pipe frame and the B piece pipe frame and the floor surface in the depth direction, a support angle steel is fixed at a wellhead of a floor elevator, the tail ends of the depth extending pipe fitting of the A piece pipe frame and the B piece pipe frame are supported in the support angle steel for the integral stress support of the protection pipe frame, the installation is finally completed, and a hoisting steel wire rope is unloaded;
and 5, step 5: cleaning up the garbage sundries on the template, and integrally lifting layer by adopting a tower crane; after the construction of the construction layer in the initial installation is finished, cleaning up the garbage sundries on the hard protection, integrally lifting the hard protection by using a tower crane, and then installing and fixing the previous protection layer by adopting the same method as the step 4.
The right-angle fastener at the outermost edge of the part, connected with the B-piece pipe frame, of the vertical pipe fitting of the T-shaped rotating shaft needs to be tightly attached to the rotating component, so that the A-piece pipe frame and the B-piece pipe frame are prevented from being staggered.
A pre-assembled elevator shaft hard protection pipe frame comprises an A piece pipe frame and a B piece pipe frame, wherein the A piece pipe frame and the B piece pipe frame respectively comprise a spacing direction frame pipe, a depth direction frame pipe and a depth extension pipe fitting, the depth direction frame pipe length of the A piece pipe frame and the depth direction frame pipe of the B piece pipe frame is larger than the depth direction width of an elevator shaft, the depth extension pipe fitting is fixed on the spacing direction frame pipe or the depth direction frame pipe of the A piece pipe frame and the depth direction frame pipe of the B piece pipe frame, and the spacing direction frame pipe length of the A piece pipe frame is smaller than the elevator shaft spacing direction width L but larger than L/2; the length of the frame pipe in the bay direction of the B-piece pipe frame is smaller than the width L of the elevator shaft in the bay direction; sequentially fixing the pipe frames by using right-angle fasteners to form an A-piece pipe frame and a B-piece pipe frame; the A piece template and the B piece template are respectively fixed at the upper ends of the A piece tube frame and the B piece tube frame and respectively cover the A piece tube frame and the B piece tube frame; the rotary shaft T-shaped rotating member comprises a steel sleeve and a vertical pipe fitting; taking a depth direction frame pipe adjacent to the A-piece pipe frame and the B-piece pipe frame as a rotating shaft, sequentially sleeving steel sleeve pipes of a plurality of rotating shaft T-shaped rotating members on the rotating shaft, and sequentially fixing vertical pipe fittings of the rotating shaft T-shaped rotating members on an opening direction frame pipe and a depth direction frame pipe of the B-piece pipe frame through rotating fasteners; when the A piece pipe frame and the B piece pipe frame are connected into a whole, the steel pipe in the opening direction of the A piece pipe frame is required to be at least pressed and connected with the steel pipe in the depth direction of the B piece pipe frame; a hanging ring is welded on one of the middle shaft T-shaped rotating members, and a steel wire rope of the tower crane penetrates through the hanging ring of the rotating member.
An included angle of 15-30 degrees is formed between the depth extending pipe fittings of the A-piece pipe frame and the B-piece pipe frame and the floor surface, a support angle steel is fixed at a wellhead of a floor surface elevator, and the tail ends of the depth extending pipe fittings of the A-piece pipe frame and the B-piece pipe frame are supported in the support angle steel.
The A piece pipe frame and the B piece pipe frame are respectively provided with a hanging ring and connected with a manual assisting steel wire rope.
The invention has the beneficial effects that:
the invention relates to a method for manufacturing a preassembled elevator shaft hard protection, which comprises the steps of firstly calculating the length of each rod piece according to the size of an elevator shaft → welding a middle shaft T-shaped rotating member → performing pre-assembly on the ground → hoisting the whole hard protection into the elevator shaft by using a tower crane, and manually assisting in positioning → cleaning rubbish and sundries on a template → adopting the tower crane to perform whole lifting layer by layer. The method can greatly improve the safety of the hard protection installation of the elevator shaft, effectively reduce the labor operation intensity and the high-altitude operation risk and improve the working efficiency.
The pre-assembled elevator shaft hard protection device can be well assembled on the ground, then is directly hung into an elevator shaft by a tower crane to be placed, can be lifted layer by the tower crane in the lifting process without being detached, is convenient and quick, has good safety, is made of common building site materials, and is simple to manufacture, good in applicability and strong in popularization.
Description of the drawings:
FIG. 1 is a schematic view of the side structure of the pre-assembled hoistway hard guard installation of the present invention;
fig. 2 is a schematic structural view of a rotation member of the rotation shaft;
FIG. 3 is a schematic view of a pre-assembled hoistway hard anti-plane structure;
FIG. 4 is a schematic view of a one-piece lift installation or removal operation, wherein the dashed box lines indicate the edges of the forms;
fig. 5 is a schematic longitudinal sectional view showing the mounting or dismounting of the integral lift.
The reference numbers in the drawing, 11 is a template of a sheet, 12 is a template of a sheet, 21 is a frame pipe of a sheet in the opening direction, 22 is a frame pipe of a sheet in the opening direction, 31 is a frame pipe of a sheet in the depth direction, 32 is a frame pipe of a sheet in the depth direction, 4 is a supporting angle steel, 5 is a rotating shaft, 6 is a hoisting steel wire rope, 7 is a manually-assisted steel wire rope, 8 is a steel sleeve, 9 is a vertical pipe fitting, 10 is a rotating fastener, 13 is a right-angle fastener, 14 is a depth extending pipe fitting, 15 is a shear wall, 16 is a shear wall steel bar, and 17 is reserved with a rotating hole.
The specific implementation mode is as follows:
example 1: a manufacturing method of pre-assembled elevator shaft hard protection comprises the following steps,
step 1: calculating the lengths of all the pipe frames in the A and B pipe frames according to the size of the elevator shaft, and calculating the sizes of the A and B templates; the depth direction frame pipes of the A piece pipe frames and the B piece pipe frames are longer than the depth direction width of the elevator shaft, the depth extending pipe fittings are fixed on the depth direction frame pipes or the depth direction frame pipes of the A piece pipe frames and the B piece pipe frames, and the length of the depth direction frame pipes of the A piece pipe frames is shorter than the width L of the elevator shaft in the depth direction but is longer than L/2; the length of the frame pipe in the bay direction of the B-piece pipe frame is smaller than the width L of the elevator shaft in the bay direction; sequentially fixing the pipe frames by using right-angle fasteners to form an A-piece pipe frame and a B-piece pipe frame; the A piece template and the B piece template are respectively fixed at the upper ends of the A piece tube frame and the B piece tube frame and respectively cover the A piece tube frame and the B piece tube frame;
the length of the steel pipe and the blanking of the template for the hard protection of the elevator shaft are based on the size of the elevator shaft bay and the depth of the project. The hard protection is arranged in the elevator shaft bay direction, and is generally 30-50mm smaller than the width of the elevator shaft bay in order to avoid inconvenient protection and installation caused by structural errors; in the depth direction, the hard protection plane and the floor form an included angle of 15-30 degrees, a support angle steel is fixed at the wellhead of the elevator on the floor, the tail ends of the pipe fittings extending into the depth of the A-piece pipe frame and the B-piece pipe frame are supported in the support angle steel for the integral stress support of the protection pipe frame, meanwhile, the inclined plane can be used for effectively weakening the falling impact force of sundries such as concrete falling objects and fasteners, and the garbage can directly roll onto the floor of the protection layer, so that the accumulation of the garbage on the hard protection is reduced, and the structure is shown in a figure 1 (B-B sectional view).
Step 2: welding a rotating shaft T-shaped rotating member, wherein the rotating shaft T-shaped rotating member comprises a steel sleeve and a vertical pipe fitting;
the T-shaped rotating component of the rotating shaft is formed by welding a 60 steel pipe and a 48 steel pipe, and the lengths of the 60 steel pipe and the 48 steel pipe can be properly adjusted according to different sizes of the elevator shaft and different selection of the hard protection frameworks. Normally, the 60 steel pipe can be 500mm and the 48 steel pipe can be 800mm, after blanking, one end of the 48 steel pipe is vertically welded on the 60 steel pipe, and the welding position can deviate from the central line of the 60 steel pipe by 48mm, so that the distance between the B pieces of pipe racks and the steel pipes is ensured. In order to facilitate later-stage hoisting, a hoisting ring is welded on one rotating shaft T-shaped rotating component. The rotating shaft T-shaped rotating component is as follows: the rotation axis rotating member is schematically shown in fig. 2.
And 3, step 3: pre-assembling on the ground; taking a depth direction frame pipe adjacent to the A-piece pipe frame and the B-piece pipe frame as a rotating shaft, sequentially sleeving steel sleeve pipes of a plurality of rotating shaft T-shaped rotating members on the rotating shaft, and sequentially fixing vertical pipe fittings of the rotating shaft T-shaped rotating members on an opening direction frame pipe and a depth direction frame pipe of the B-piece pipe frame through rotating fasteners; therefore, the A piece pipe frame and the B piece pipe frame are connected into a whole;
firstly assembling the B-piece pipe frame on the ground, and connecting the T-shaped rotating component of the rotating shaft and the B-piece pipe frame pipe together by adopting a right-angle fastener and a rotating fastener and fixing firmly. Then, a rotating shaft of the A-piece pipe frame is inserted into the T-shaped rotating component, and the rotating shaft and the A-piece pipe frame pipe are connected and fixed by a right-angle fastener. After the framework is fixed, the cut wood template is firmly fixed on the framework by using iron wires. Note that: in the direction vertical to the T-shaped rotating shaft, the right-angle fastener at the outermost edge is required to be tightly attached to the rotating member to prevent the A, B sheet tube racks from being dislocated; when assembling, the steel pipe in the depth direction is arranged at the lower part, and the steel pipe in the interval direction is arranged at the upper part; the steel pipe in the opening direction of the A piece of pipe frame is at least pressed and connected with the steel pipe in the depth direction of the B piece of pipe frame; a rotary hole is reserved in the position of a rotary component with a hanging ring on the A-piece pipe frame wood template. See FIG. 3: a pre-assembled elevator shaft hard protection plan.
And 4, step 4: hoisting the whole hard protection tower crane into the elevator shaft and manually assisting to take place;
and (3) enabling a steel wire rope of the tower crane to penetrate through a hanging ring of the rotating member, slowly hoisting and falling into an elevator shaft of a high-rise building. After arriving the construction layer, arrange the workman and assist the rope with the manual work and twine temporarily on the shear force wall on construction layer, through the adjustment to manual work and assist rope length, the expansion of A, B pipe supports of hard protection becomes the plane, waits to fall to construction layer one deck down after, under the self action of gravity of hard protection, through the crimping realization final protection plane of A piece pipe support and B piece pipe support steel pipe, the installation is finally accomplished, unloads and lifts by crane wire rope. See fig. 4 and 5: a schematic diagram of integral lifting installation or disassembly and a sectional diagram A-A.
And 5, step 5: cleaning up the garbage and sundries on the template, and adopting a tower crane to integrally lift layer by layer
After the construction of the construction layer during initial installation is finished, the hard protection is integrally lifted by a tower crane after garbage sundries on the hard protection are cleaned up, and the hard protection is fixedly installed on the last protective layer by adopting the same method as the initial installation layer, so that the working time waste of detaching and installing each layer of protection is realized, the labor operation time is reduced, and the working efficiency is improved. Meanwhile, the assembly is carried out on the ground, and the hoisting is carried out through the tower crane, so that the risk of high-altitude operation in the hoistway can be effectively reduced.
Example 2: the pre-assembled elevator shaft hard protection pipe frame shown in fig. 3-5 comprises an a-piece pipe frame and a B-piece pipe frame, wherein the a-piece pipe frame and the B-piece pipe frame respectively comprise an interval direction frame pipe, a depth direction frame pipe and a depth extension pipe fitting, the depth direction frame pipe length of the a-piece pipe frame and the depth direction frame pipe of the B-piece pipe frame is greater than the depth direction width of an elevator shaft, the depth extension pipe fitting is fixed on the interval direction frame pipe or the depth direction frame pipe of the a-piece pipe frame and the B-piece pipe frame, and the interval direction frame pipe length of the a-piece pipe frame is less than the elevator shaft interval direction width L but greater than L/2; the length of the frame pipe in the bay direction of the B-piece pipe frame is smaller than the width L of the elevator shaft in the bay direction; sequentially fixing the pipe frames by using right-angle fasteners to form an A-piece pipe frame and a B-piece pipe frame; the A piece template and the B piece template are respectively fixed at the upper ends of the A piece tube rack and the B piece tube rack and respectively cover the A piece tube rack and the B piece tube rack.
As shown in FIG. 2, the rotating shaft T-shaped rotating member comprises a steel sleeve and a vertical tube; taking a depth direction frame pipe adjacent to the A-piece pipe frame and the B-piece pipe frame as a rotating shaft, sequentially sleeving steel sleeve pipes of a plurality of rotating shaft T-shaped rotating members on the rotating shaft, and sequentially fixing vertical pipe fittings of the rotating shaft T-shaped rotating members on an opening direction frame pipe and a depth direction frame pipe of the B-piece pipe frame through rotating fasteners; when the A piece pipe frame and the B piece pipe frame are connected into a whole, the steel pipe in the opening direction of the A piece pipe frame is required to be at least pressed and connected with the steel pipe in the depth direction of the B piece pipe frame; a hanging ring is welded on one of the middle shaft T-shaped rotating members, and a steel wire rope of the tower crane penetrates through the hanging ring of the rotating member.
As shown in figure 1, an included angle of 15-30 degrees is formed between the depth extending pipe fittings of the A-piece pipe frame and the B-piece pipe frame and the floor surface, a support angle steel is fixed at a wellhead of an elevator on the floor surface, and the tail ends of the depth extending pipe fittings of the A-piece pipe frame and the B-piece pipe frame are supported in the support angle steel.
The A piece pipe frame and the B piece pipe frame are respectively provided with a hanging ring and connected with a manual assisting steel wire rope.
Claims (3)
1. A manufacturing method of pre-assembled elevator shaft hard protection is characterized by comprising the following steps,
step 1: calculating the lengths of all the pipe frames in the A and B pipe frames according to the size of the elevator shaft, and calculating the sizes of the A and B templates; the depth direction frame pipes of the A piece pipe frames and the B piece pipe frames are longer than the depth direction width D of the elevator shaft, the depth extending pipe fittings are fixed on the depth direction frame pipes or the depth direction frame pipes of the A piece pipe frames and the B piece pipe frames, and the length of the depth direction frame pipes of the A piece pipe frames is shorter than the width L of the elevator shaft in the depth direction but is longer than L/2; the length of the interval direction frame pipe of the B piece of pipe frame is less than the width L of the elevator shaft in the interval direction; sequentially fixing the pipe frames by using right-angle fasteners to form an A-piece pipe frame and a B-piece pipe frame; the A piece template and the B piece template are respectively fixed at the upper ends of the A piece tube frame and the B piece tube frame and respectively cover the A piece tube frame and the B piece tube frame;
step 2: welding a rotating shaft T-shaped rotating member, wherein the rotating shaft T-shaped rotating member comprises a steel sleeve and a vertical pipe fitting;
and 3, step 3: pre-assembling on the ground; taking a depth direction frame pipe adjacent to the A-piece pipe frame and the B-piece pipe frame as a rotating shaft, sequentially sleeving steel sleeve pipes of a plurality of rotating shaft T-shaped rotating members on the rotating shaft, and sequentially fixing vertical pipe fittings of the rotating shaft T-shaped rotating members on an opening direction frame pipe and a depth direction frame pipe of the B-piece pipe frame through rotating fasteners; therefore, the A piece pipe frame and the B piece pipe frame are connected into a whole;
and 4, step 4: hoisting the whole hard protection tower crane into the elevator shaft and manually assisting to take place; a steel wire rope of the tower crane penetrates through a hanging ring of the rotating member, and then the steel wire rope is slowly lifted and falls into an elevator shaft of a high-rise building; after the steel pipe frame is positioned on a construction layer, workers are arranged to temporarily wind a manual assisting rope on a shear wall of the construction layer, the hard protection A piece pipe frame and the B piece pipe frame are unfolded into planes through adjusting the length of the manual assisting rope, after the steel pipe frame falls to the next layer of the construction layer, a final protection plane is realized through the compression joint of the A piece pipe frame and the B piece pipe frame steel pipe under the self gravity action of hard protection, an included angle of 15-30 degrees is formed between a depth extending pipe fitting of the A piece pipe frame and the B piece pipe frame and the floor surface in the depth direction, a support angle steel is fixed at a wellhead of a floor elevator, the tail ends of the depth extending pipe fitting of the A piece pipe frame and the B piece pipe frame are supported in the support angle steel for the integral stress support of the protection pipe frame, the installation is finally completed, and a hoisting steel wire rope is unloaded;
and 5, step 5: cleaning up the garbage sundries on the template, and integrally lifting layer by adopting a tower crane; after the construction of the construction layer in the initial installation is finished, cleaning up the garbage sundries on the hard protection, lifting the whole hard protection by using a tower crane, and then installing and fixing the last protection layer by adopting the same method as the step 4.
2. The method for manufacturing a preassembled elevator shaft hard protection as set forth in claim 1, wherein a right-angle fastener at the outermost edge is closely attached to the rotating member at a position where the vertical pipe fitting of the T-shaped rotating shaft is connected with the B-piece pipe frame, so as to prevent the A-piece pipe frame and the B-piece pipe frame from being dislocated.
3. A pre-assembled elevator shaft hard protection pipe frame is characterized by comprising an A-piece pipe frame and a B-piece pipe frame, wherein the A-piece pipe frame and the B-piece pipe frame respectively comprise a spacing direction frame pipe, a depth direction frame pipe and a depth extension pipe fitting, the depth direction frame pipe length of the A-piece pipe frame and the depth direction frame pipe length of the B-piece pipe frame are larger than the depth direction width of an elevator shaft, the depth extension pipe fitting is fixed on the spacing direction frame pipe or the depth direction frame pipe of the A-piece pipe frame and the depth direction frame pipe of the B-piece pipe frame, and the spacing direction frame pipe length of the A-piece pipe frame is smaller than the elevator shaft spacing direction width L but larger than L/2; the length of the frame pipe in the bay direction of the B-piece pipe frame is smaller than the width L of the elevator shaft in the bay direction; respectively fixing the frame pipes in sequence by utilizing right-angle fasteners to form an A-piece pipe frame and a B-piece pipe frame; the A piece template and the B piece template are respectively fixed at the upper ends of the A piece tube frame and the B piece tube frame and respectively cover the A piece tube frame and the B piece tube frame; the rotary shaft T-shaped rotating member comprises a steel sleeve and a vertical pipe fitting; taking a depth direction frame pipe adjacent to the A-piece pipe frame and the B-piece pipe frame as a rotating shaft, sequentially sleeving steel sleeve pipes of a plurality of rotating shaft T-shaped rotating members on the rotating shaft, and sequentially fixing vertical pipe fittings of the rotating shaft T-shaped rotating members on an opening direction frame pipe and a depth direction frame pipe of the B-piece pipe frame through rotating fasteners; when the A piece pipe frame and the B piece pipe frame are connected into a whole, the steel pipe in the opening direction of the A piece pipe frame is required to be at least pressed and connected with the steel pipe in the depth direction of the B piece pipe frame; a hoisting ring is welded on one middle shaft T-shaped rotating member, and a steel wire rope of the tower crane penetrates through the hoisting ring of the rotating member;
an included angle of 15-30 degrees is formed between the depth extending pipe fittings of the pipe racks A and the pipe racks B and the floor surface, a support angle steel is fixed at the elevator well mouth of the floor surface, and the tail ends of the depth extending pipe fittings of the pipe racks A and the pipe racks B are supported in the support angle steel;
the A piece pipe frame and the B piece pipe frame are respectively provided with a hanging ring and connected with a manual assisting steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207379.7A CN106812331B (en) | 2017-03-31 | 2017-03-31 | Manufacturing method of pre-assembled elevator shaft hard protection and protective pipe frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710207379.7A CN106812331B (en) | 2017-03-31 | 2017-03-31 | Manufacturing method of pre-assembled elevator shaft hard protection and protective pipe frame |
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| CN106812331A CN106812331A (en) | 2017-06-09 |
| CN106812331B true CN106812331B (en) | 2022-05-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5167299A (en) * | 1991-11-08 | 1992-12-01 | Arthur Nusbaum | Safety net arrangement for building elevator shafts |
| CN202925916U (en) * | 2012-08-07 | 2013-05-08 | 中建三局建设工程股份有限公司 | Elevator shaft slope separation system |
| CN202969971U (en) * | 2012-12-13 | 2013-06-05 | 中国建筑第五工程局有限公司 | Elevator shaft protection device |
| CN203905425U (en) * | 2014-06-20 | 2014-10-29 | 中建五局第三建设有限公司 | Elevator shaft construction-tool operating platform and safety protection integrated structure |
| CN206607903U (en) * | 2017-03-31 | 2017-11-03 | 河南国基建设集团有限公司 | A kind of pre-assembled elevator hard protection pipe support |
-
2017
- 2017-03-31 CN CN201710207379.7A patent/CN106812331B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106812331A (en) | 2017-06-09 |
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