CN115839172A - Reverse construction method for steel reinforced concrete composite structure - Google Patents
Reverse construction method for steel reinforced concrete composite structure Download PDFInfo
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- CN115839172A CN115839172A CN202211509687.2A CN202211509687A CN115839172A CN 115839172 A CN115839172 A CN 115839172A CN 202211509687 A CN202211509687 A CN 202211509687A CN 115839172 A CN115839172 A CN 115839172A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 113
- 239000010959 steel Substances 0.000 title claims abstract description 113
- 238000010276 construction Methods 0.000 title claims abstract description 83
- 239000002131 composite material Substances 0.000 title claims abstract description 33
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 26
- 239000004567 concrete Substances 0.000 claims abstract description 45
- 238000003756 stirring Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000004568 cement Substances 0.000 claims abstract description 5
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 23
- 230000000670 limiting effect Effects 0.000 claims description 13
- 238000005096 rolling process Methods 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 4
- 108010068370 Glutens Proteins 0.000 claims description 3
- 235000021312 gluten Nutrition 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 230000008520 organization Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 244000309464 bull Species 0.000 description 5
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000012615 aggregate Substances 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
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Abstract
The invention discloses a reverse construction method of a steel reinforced concrete composite structure, which comprises the following steps: s1: putting materials such as water, cement, a reinforcing agent, aggregate and the like into a stirrer for stirring and mixing; s2: positioning according to a drawing, and constructing a first section of steel column after finishing binding bottom ribs of the raft; s3: constructing two and three sections of steel columns according to the position of the first section of steel column; s4: hoisting the steel truss after the steel column is finished; s5: a single truss is installed backwards by the crawler crane, and the tower crane is matched with the embedding and the mending before the hook loosening; s6: and constructing the first-layer concrete structure and the second-layer concrete structure. The construction of the steel structure is completed to form a stressed whole, and then the construction of the concrete structure is carried out, namely, the steel structure is firstly constructed to the top layer, and then the lower part civil engineering construction is carried out alternately, and the construction method of 'reverse operation' is adopted, so that the cross operation of different work types can be effectively reduced compared with the construction method of 'normal operation', the construction organization is convenient for on-site construction, the construction period can be effectively saved, and the cost is saved.
Description
Technical Field
The invention relates to the technical field of engineering, in particular to a reverse construction method of a section steel concrete composite structure.
Background
The construction industry is continuously developing and innovating, more and more clean factory buildings begin to use the steel reinforced concrete composite structure, and the composite structure relates to the construction sequence, and the 'doing' or 'doing reversely' relates to the success or failure of the project, so that the cost, the construction period, the safety, the quality and other aspects of the project are influenced, and higher construction requirements are provided for the steel reinforced concrete composite structure.
The construction method adopts the 'just-made' clean factory house steel concrete composite structure, the structural form is the combination of steel and reinforced concrete, the construction process is more complicated than that of a simple reinforced concrete structure and a simple steel structure, in the construction, not only the respective construction technical key points of the steel structure and the reinforced concrete structure need to be noticed, but also the cross construction problem of the two structures needs to be solved, particularly, the reinforcing steel bars at the nodes are dense, the reinforcing steel bars are difficult to pass through a steel column web, the concrete pouring is difficult, the construction progress of the whole project can be greatly influenced in a factory building project with short construction period, the stirring direction of the existing concrete stirrer is too single, the time spent in stirring and uniformly mixing is longer, and therefore, the efficiency of preparing the concrete is lower.
Disclosure of Invention
The invention aims to solve the following defects in the prior art, and provides a reverse construction method of a steel reinforced concrete composite structure, wherein the reverse construction method of the steel reinforced concrete composite structure is adopted for construction, the construction process is complex, the construction progress of the whole project can be greatly influenced in a factory project with a short construction period, the stirring direction of the existing concrete stirrer is too single, and the time spent on stirring and uniformly mixing is long, so that the efficiency of preparing concrete is low.
In order to achieve the purpose, the invention adopts the following technical scheme:
the reverse construction method of the steel reinforced concrete composite structure comprises the following steps:
s1: mixing materials such as water, cement, a reinforcing agent, aggregate and the like according to corresponding proportions, and then putting the materials into a stirrer to stir and mix to obtain concrete;
s2: positioning according to a drawing, performing first section steel column construction after finishing the binding of the raft bottom ribs, performing gluten binding after the first section steel column construction is finished, and pouring by using the prepared concrete to finish the steel concrete composite structure foundation;
s3: constructing two and three sections of steel columns according to the position of the first section of steel column, splicing the two and three sections of steel columns into a whole on the ground for hoisting construction, and arranging and butting the steel columns at the position of 1.2m on the raft foundation;
s4: hoisting the steel trusses after the steel columns are finished, transporting all the steel trusses to a site in need of spare parts, dragging the steel trusses to the site by using a flat plate for two-section butt joint, and fixing the steel trusses by welding;
s5: after the steel trusses are hoisted, the crawler crane backs up to install single trusses, the tower crane is matched with embedding and repairing before the hook is loosened, and secondary beams and purlins are installed among the trusses;
s6: and constructing the first-layer concrete structure and the second-layer concrete structure, effectively connecting the steel bars and the steel structure through the preformed holes and the preformed sleeves on the steel columns, and finally pouring the prepared concrete to finish the construction of the formed steel-concrete composite structure.
Preferably, the frame columns in the steel structure span in the step S2 are all designed as micro-vibration columns.
Preferably, in the step S3, two or three sections of steel columns are constructed, and the length of each section is not more than 16 meters.
Preferably, the steel column reinforcement in the step S4 is rigidly connected to the steel column through a circular tube.
Preferably, the mixer in the step S includes a mixer body, a driving motor is fixedly mounted on the upper surface of the mixer body, an output shaft of the driving motor penetrates into the mixer body and is fixedly mounted with a first mounting cylinder, a second mounting cylinder corresponding to the first mounting cylinder is rotatably mounted on the inner bottom wall of the mixer body, a rotating rod is inserted between the first mounting cylinder and the second mounting cylinder in a vertical sliding manner, the surface of the rotating rod is circumferentially and fixedly mounted with a plurality of stirring rods, a plurality of sliding rods are fixedly mounted between the inner top wall of the first mounting cylinder and the inner bottom wall of the second mounting cylinder in a vertical manner, the sliding rods are sleeved on the plurality of sliding rods in a sliding manner, a through hole communicated with the bottom wall of the mixer body is vertically formed in the inner bottom wall of the second mounting cylinder, a rotating shaft is fixedly mounted on the lower surface of the rotating rod, reciprocating threads are arranged on the surface of the rotating shaft, a sliding block is sleeved on the rotating shaft in a threaded manner, two abutting rods are fixedly mounted on the upper surface of the sliding block in a vertical manner, two penetrating holes for the tops of the two abutting rods to penetrate through holes, and the sliding block limits the rotation of the limiting component.
Preferably, the limiting component includes a limiting rod, a sliding opening is vertically formed on the surface of the sliding block, the limiting rod is slidably disposed in the sliding opening, and the top end of the limiting rod is vertically installed on the lower surface of the machine body.
Preferably, a scraper is fixedly mounted on the surface of the output shaft of the driving motor through a connecting rod, and the surface of the scraper is in sliding contact with the inner surface of the machine body.
Preferably, two installing ports are vertically formed in the bottom wall of the machine body, an air cylinder is installed in the installing ports in a sealing and rotating mode, threads are formed in the inner cylinder wall of the air cylinder, threaded rods are installed in the inner threads of the air cylinder, a plurality of disturbance plates are fixedly installed on the side wall of the top end of the air cylinder in a circumferential mode, moving plates are fixedly installed on the left side wall and the right side wall of the sliding block, and the bottom ends of the two threaded rods are fixedly connected with the upper surfaces of the two moving plates respectively.
Preferably, the top end of the support rod is provided with a spherical groove, and a ball is embedded in the spherical groove in a rolling manner.
Preferably, the top wall vertical fixed mounting has an expanding spring in the first installation section of thick bamboo, expanding spring's bottom and bull stick top fixed connection.
Compared with the prior art, the invention has the beneficial effects that:
1. after the construction of the steel structure is finished, the bearing is integrally formed, and then the concrete structure construction is carried out, namely, the steel structure is firstly constructed to the top layer, and then the lower part civil engineering construction is carried out alternately, and the construction method of 'reverse construction' is adopted, so that the cross operation of different work types can be effectively reduced compared with the construction method of 'normal construction', the field construction organization is convenient, the construction period can be effectively saved, and the cost is saved;
2. the stirring rods in the stirrer can perform reciprocating movement in the vertical direction while performing rotary stirring in the vertical direction, so that the stirring amplitude is increased, the process of uniformly stirring raw materials of concrete is accelerated, and the working efficiency of concrete preparation is improved;
3. in the process of preparing concrete, the scraper can rotate in the machine body, and partial materials attached to the inner wall of the machine body can be scraped off during rotation, so that the materials can be fully stirred and mixed;
4. along with many puddlers carry out reciprocating motion on the vertical direction, two hollow section of thick bamboo also can carry out reciprocating type rotation to polylith disturbance board just can rotate together, at the pivoted in-process, can disturb the material of piling up in the internal bottom of organism, make its fully stirred, guaranteed the quality of final finished product concrete.
Drawings
FIG. 1 is a structural planing surface diagram in the reverse construction method of a steel reinforced concrete composite structure provided by the invention;
FIG. 2 is a frame diagram of the construction process in the reversed construction method of the steel reinforced concrete composite structure provided by the invention;
FIG. 3 is a steel structure hoisting construction flow section diagram in the steel reinforced concrete composite structure reverse construction method provided by the invention;
FIG. 4 is a schematic structural view of a front three-dimensional partial cross section of a mixer in a reverse construction method of a steel reinforced concrete composite structure according to the present invention;
FIG. 5 is a schematic view of a partial cross-sectional structure of a mixer in a reverse construction method of a steel reinforced concrete composite structure according to the present invention;
FIG. 6 is a schematic bottom perspective view of a mixer in the top-down construction method of a steel reinforced concrete composite structure according to the present invention;
FIG. 7 is an enlarged view of the structure at A in FIG. 4;
FIG. 8 is an enlarged view of the structure at B in FIG. 4;
FIG. 9 is an enlarged view of the structure at C in FIG. 5;
fig. 10 is an enlarged view of the structure at D in fig. 6.
In the figure: the stirring device comprises a machine body 1, a driving motor 2, a first mounting barrel 3, a second mounting barrel 4, a rotating rod 5, a sliding rod 6, a rotating shaft 7, a sliding block 8, a pushing rod 9, a limiting rod 10, a connecting rod 11, a scraping plate 12, a hollow barrel 13, a threaded rod 14, a disturbing plate 15, a moving plate 16, a ball 17, an expansion spring 18 and a stirring rod 19.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 10, a reverse construction method of a section steel concrete composite structure includes the following steps:
s1: mixing materials such as water, cement, a reinforcing agent, aggregate and the like according to corresponding proportions, and then putting the materials into a stirrer to stir and mix to obtain concrete;
s2: according to the drawing location, carry out the construction of first section steel column after raft foundation muscle ligature finishes, carry out the gluten ligature after the construction of first section steel column finishes, the concrete that the reuse made is pour, and then the finished product steel concrete integrated configuration basis, according to the design requirement of clean factory building in the construction of first section steel column, need reach little vibration control design requirement, need satisfy the steel construction simultaneously and stride interior normal position hoist and mount needs, the steel construction is striden interior frame post and all is designed for the post that shakes a little, break off the frame post reinforcing bar total at the basis raft face promptly, continue to connect the construction after the steel construction is accomplished again, first section post installation order is as follows: (1) And the truck crane is provided with S axis steel columns in areas A1, A5, B1, B5, C1 and C5 and L axis steel columns in areas B2, B6, C2, C6, A2 and A6. (2) Installing A4, A8, B4, B8, C4 and C8 areas A, D, E shaft steel columns on the tower crane;
s3: according to the position of the first section of steel column, two and three sections of steel columns are constructed, the two and three sections of steel columns are assembled into a whole on the ground for hoisting construction, the installation butt joint position of the steel columns is 1.2m on a raft foundation, and the section length of the construction of the two and three sections of steel columns is not more than 16 m;
s4: hoisting the steel truss after the steel column is finished, transporting the steel truss to the site, dragging the steel truss to the site by using a flat plate for two-section butt joint, fixing the steel column by welding, wherein the steel column is reinforced by rigidly connecting a round pipe with the steel column, arranging a round pipe with the diameter of 203mm and the wall thickness of 6mm at the elevations of 7.4m,14.8m and 22.2m along the direction of the steel column, and rigidly connecting the round pipe with the steel column;
s5: after the steel trusses are hoisted, the crawler crane backs up to install single trusses, the tower crane is matched with embedding and repairing before the hook is loosened, and secondary beams and purlins are installed among the trusses;
s6: and constructing the first-layer concrete structure and the second-layer concrete structure, effectively connecting the steel bars and the steel structure through the preformed holes and the preformed sleeves on the steel columns, and finally pouring the prepared concrete to finish the construction of the steel concrete composite structure.
The stirrer in the step S1 comprises a machine body 1, a driving motor 2 is fixedly installed on the upper surface of the machine body 1, an output shaft of the driving motor 2 penetrates into the machine body 1 and is fixedly provided with a first installation barrel 3, a second installation barrel 4 corresponding to the position of the first installation barrel 3 is rotatably installed on the inner bottom wall of the machine body 1, a rotating rod 5 is vertically inserted between the first installation barrel 3 and the second installation barrel 4 in a sliding manner, a plurality of stirring rods 19 are fixedly installed on the surface of the rotating rod 5 in a circumferential manner, a plurality of sliding rods 6 are vertically and fixedly installed between the inner top wall of the first installation barrel 3 and the inner bottom wall of the second installation barrel 4, the rotating rod 5 is slidably sleeved on the plurality of sliding rods 6, an opening communicated with the bottom wall of the machine body 1 is vertically formed on the inner bottom wall of the second installation barrel 4, a rotating shaft 7 is fixedly installed on the lower surface of the rotating rod 5, a reciprocating screw thread is formed on the surface of the rotating shaft 7, a sliding block 8 is sleeved on the rotating shaft 8, two abutting rods 9 are vertically and fixedly installed on the upper surface of the sliding block, two penetrating openings respectively used for penetrating through the tops of the two abutting rods 9, the sliding rods 8, the sliding rod 8 is limited by a limiting part, the sliding block 10 is arranged in the sliding opening, and is vertically arranged on the top end of the sliding rod 1, and vertically arranged on the sliding rod 1;
materials such as water, cement, reinforcing agents, aggregates and the like are blended according to corresponding proportions, then the materials are put into a machine body 1, a driving motor 2 is started, an output shaft of the driving motor 2 drives a first mounting cylinder 3, a second mounting cylinder 4 and a rotating rod 5 to rotate together, a rotating shaft 7 also drives a sliding block 8 which is in threaded sleeve connection with the rotating shaft 7 to reciprocate in the vertical direction under the limiting action of a limiting rod 10, when the sliding block 8 drives two abutting rods 9 to move upwards, the two abutting rods 9 push the rotating rod 5 to move upwards, the top end of the rotating rod 5 moves towards the first mounting cylinder 3, and when the sliding block 8 moves downwards, the two abutting rods 9 also move downwards, the rotating rod 5 moves downwards under the self gravity, the bottom end of the rotating rod moves towards the second mounting cylinder 4, so that after the driving motor 2 is started, the rotating rod 5 rotates in the vertical direction along with a plurality of stirring rods 19 and also can reciprocate in the vertical direction, the stirring amplitude is increased, the mixing speed of concrete is increased, and the mixing efficiency of the concrete is improved.
A scraper 12 is fixedly arranged on the surface of an output shaft of the driving motor 2 through a connecting rod 11, and the surface of the scraper 12 is in sliding contact with the inner surface of the machine body 1;
in the process of preparing concrete, the output shaft of the driving motor 2 can drive the scraper 12 to rotate in the machine body 1, and partial materials attached to the inner wall of the machine body 1 can be scraped off when the scraper rotates, so that the materials can be fully stirred and mixed.
The inner bottom wall of the machine body 1 is vertically provided with two mounting ports, a hollow cylinder 13 is installed in the mounting ports in a sealing and rotating mode, the inner cylinder wall of the hollow cylinder 13 is provided with threads, threaded rods 14 are installed in the threads of the hollow cylinder 13, the side wall of the top end of the hollow cylinder 13 is fixedly provided with a plurality of disturbance plates 15 in a circumferential mode, the left side wall and the right side wall of the sliding block 8 are fixedly provided with moving plates 16, and the bottom ends of the two threaded rods 14 are fixedly connected with the upper surfaces of the two moving plates 16 respectively;
along with the reciprocating motion of slider 8 on the vertical direction, two threaded rods 14 also can carry out the reciprocating motion on the vertical direction together to under the mutually supporting of screw thread, two hollow section of thick bamboo 13 also can carry out reciprocating type rotation, and the polylith disturbance board of fixed mounting at hollow section of thick bamboo 13 lateral wall just can rotate together, at the pivoted in-process, can disturb the material of piling up at organism 1 inner bottom, makes it move up in organism 1 to be stirred by many puddlers 19 fully, guaranteed the quality of final finished product concrete.
The top end of the abutting rod 9 is provided with a spherical groove, and a round ball 17 is embedded in the spherical groove in a rolling manner; the spherical ball 17 can change the sliding contact between the resisting rod 9 and the rotating rod 5 into rolling contact, thereby changing the sliding friction force of the contact surface into rolling friction force and reducing the damage of the contact surface between the bottom surface of the rotating rod 5 and the resisting rod 9 when the rotating rod rotates.
An extension spring 18 is vertically and fixedly installed on the inner top wall of the first installation cylinder 3, and the bottom end of the extension spring 18 is fixedly connected with the top end of the rotating rod 5; when two support rods 9 promote bull stick 5 upwards, expanding spring 18 can contract gradually this moment, when two support rods 9 no longer give bull stick 5 ascending thrust, expanding spring 18 can reset rapidly this moment to promote bull stick 5 downwards, when avoiding the mixed material in the organism 1 comparatively thick, bull stick 5 can't move down under the effect of self gravity.
According to the invention, after the steel structure construction is finished, the stress is integrally formed, then the concrete structure construction is carried out, namely, the steel structure is firstly constructed to the top layer, then the lower part civil engineering construction is carried out alternately, a reverse construction method is adopted, compared with a forward construction method, the cross operation of different work types can be effectively reduced, the on-site construction organization is convenient, the construction period can be effectively saved, the cost is saved, and the plurality of stirring rods 19 in the machine body 1 can carry out reciprocating movement in the vertical direction while carrying out rotary stirring in the vertical direction, so that the stirring amplitude is increased, the process of uniformly stirring the raw materials of the concrete is accelerated, and the working efficiency of preparing the concrete is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. The reverse construction method of the steel reinforced concrete composite structure is characterized by comprising the following steps of:
s1: mixing materials such as water, cement, a reinforcing agent, aggregate and the like according to corresponding proportions, and then putting the materials into a stirrer to stir and mix to obtain concrete;
s2: positioning according to a drawing, performing first section steel column construction after finishing binding of raft bottom ribs, performing gluten binding after finishing the first section steel column construction, and pouring by using prepared concrete to finish a steel concrete composite structure foundation;
s3: constructing two and three sections of steel columns according to the position of the first section of steel column, splicing the two and three sections of steel columns into a whole on the ground for hoisting construction, and arranging and butting the steel columns at the position of 1.2m on the raft foundation;
s4: hoisting the steel trusses after the steel columns are finished, transporting all the steel trusses to the site in need of spare parts, dragging the steel trusses to the site by using a flat plate for two-section butt joint, and fixing the steel trusses by welding;
s5: after the steel trusses are hoisted, the crawler crane backs up to install single trusses, the tower crane is matched with embedding and repairing before the hook is loosened, and secondary beams and purlins are installed among the trusses;
s6: and constructing the first-layer concrete structure and the second-layer concrete structure, effectively connecting the steel bars and the steel structure through the preformed holes and the preformed sleeves on the steel columns, and finally pouring the prepared concrete to finish the construction of the steel concrete composite structure.
2. The reverse construction method of the steel reinforced concrete composite structure according to claim 1, wherein the frame columns in the steel structure span in the step S2 are all designed as micro-vibration columns.
3. The reverse construction method of the steel reinforced concrete composite structure according to claim 1, wherein in the step S3, two or three sections of steel columns are constructed, and the length of each section is not more than 16 m.
4. The reverse construction method of the steel reinforced concrete composite structure according to claim 1, wherein the steel column reinforcement in the step S4 is rigidly connected with the steel column through a circular tube.
5. The reverse construction method of the steel reinforced concrete composite structure according to claim 1, characterized in that the stirrer in the step S1 comprises a machine body (1), a driving motor (2) is fixedly installed on the machine body (1) through a surface, an output shaft of the driving motor (2) penetrates into the machine body (1) and is fixedly installed with a first installation cylinder (3), a second installation cylinder (4) corresponding to the first installation cylinder (3) is installed in the machine body (1) through a bottom wall in a rotating manner, a rotating rod (5) is vertically inserted between the first installation cylinder (3) and the second installation cylinder (4) in a sliding manner, a plurality of stirring rods (19) are fixedly installed on the surface of the rotating rod (5) in a circumferential manner, a plurality of sliding rods (6) are vertically and fixedly installed between an inner top wall of the first installation cylinder (3) and an inner bottom wall of the second installation cylinder (4), the rotating rod (5) is sleeved on the plurality of sliding rods (6), a through hole communicated with the bottom wall of the machine body (1) is vertically formed in the inner bottom wall of the second installation cylinder (4), a sliding rod (7) is fixedly installed on a lower surface, a rotating shaft (7) penetrates through a sliding block (9), two reciprocating surface of the rotating rod (7) and two inner bottom wall (8) are respectively installed on the upper surface, two reciprocating support rods (8) and are respectively, and are vertically installed on the top end of the rotating shaft (9) and are respectively, and are connected with a rotating shaft (9) and are connected with a rotating shaft (7), and are connected with a screw thread of the rotating shaft (9) through a rotating shaft (7), and are connected with a rotating shaft (9) through a reciprocating support rod (7), and are connected with a rotating shaft (8) through a screw thread of the rotating shaft (7), and connected with two reciprocating support rod (7), and connected with a screw thread of the upper surface, and connected with a second installation cylinder (8) through a second installation cylinder (9) The slider (8) is restricted from rotating by a restricting member.
6. The reverse construction method of the steel reinforced concrete composite structure according to claim 5, wherein the limiting component comprises a limiting rod (10), a sliding opening is vertically formed in the surface of the sliding block (8), the limiting rod (10) is arranged in the sliding opening in a sliding mode, and the top end of the limiting rod is vertically installed on the lower surface of the machine body (1).
7. The reverse construction method of the steel reinforced concrete composite structure according to claim 5, characterized in that a scraper (12) is fixedly installed on the surface of an output shaft of the driving motor (2) through a connecting rod (11), and the surface of the scraper (12) is in sliding contact with the inner surface of the machine body (1).
8. The reverse construction method of the section steel concrete composite structure according to claim 5, characterized in that two mounting openings are vertically formed in the inner bottom wall of the machine body (1), a hollow cylinder (13) is rotatably and hermetically mounted in each mounting opening, threads are formed in the inner wall of the hollow cylinder (13), threaded rods (14) are mounted in the hollow cylinder (13) in an internal thread manner, a plurality of disturbance plates (15) are fixedly mounted on the side wall of the top end of the hollow cylinder (13) in a circumferential manner, moving plates (16) are fixedly mounted on the left side wall and the right side wall of the slider (8), and the bottom ends of the two threaded rods (14) are respectively fixedly connected with the upper surfaces of the two moving plates (16).
9. The reverse construction method of the steel reinforced concrete composite structure according to claim 5, characterized in that a spherical groove is formed at the top end of the supporting rod (9), and a sphere (17) is embedded in the spherical groove in a rolling manner.
10. The reverse construction method of the steel reinforced concrete composite structure according to claim 5, characterized in that an expansion spring (18) is vertically and fixedly installed on the inner top wall of the first installation cylinder (3), and the bottom end of the expansion spring (18) is fixedly connected with the top end of the rotating rod (5).
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| CN113797878A (en) * | 2021-11-06 | 2021-12-17 | 阴晓航 | Scraping and mixing type nylon reaction kettle based on integral reciprocating swing |
| CN115324366A (en) * | 2022-08-17 | 2022-11-11 | 中建一局集团建设发展有限公司 | Hoisting method for overlong and overweight truss of framed bent structure system |
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