CN115012571B - Assembled steel plate concrete hollow floor slab and manufacturing method thereof - Google Patents
Assembled steel plate concrete hollow floor slab and manufacturing method thereof Download PDFInfo
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- CN115012571B CN115012571B CN202210709141.5A CN202210709141A CN115012571B CN 115012571 B CN115012571 B CN 115012571B CN 202210709141 A CN202210709141 A CN 202210709141A CN 115012571 B CN115012571 B CN 115012571B
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- steel
- profiled
- steel sheet
- concrete
- steel plate
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/326—Floor structures wholly cast in situ with or without form units or reinforcements with hollow filling elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
- B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
- E04B5/40—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
Abstract
The utility model relates to an assembled steel plate concrete hollow floor slab and a manufacturing method thereof, wherein the main technical scheme is an assembled steel plate concrete hollow floor slab, which comprises a plate body, wherein a bearing steel plate and a plurality of T-shaped steel are arranged in the plate body horizontally, and the flange of the T-shaped steel is welded and connected with the upper surface of the bearing steel plate; the bearing steel plate is provided with a profiled steel plate which is horizontally arranged, the wave crest of the profiled steel plate is positioned above the T-shaped steel, and the steel pipe is arranged above the wave trough of the profiled steel plate. The profiled steel sheet and the T-shaped steel are arranged, the characteristics of high section inertia torque of the profiled steel sheet and the T-shaped steel are utilized, so that the bending strength and rigidity of the whole structure are improved, the profiled steel sheet is tightly matched with the T-shaped steel and the steel tube respectively, and the advantages of high rigidity and small whole thickness are considered.
Description
Technical Field
The application relates to the field of prefabricated floors, in particular to an assembled steel plate concrete hollow floor and a manufacturing method thereof.
Background
The industrialization of the building has become the necessary trend of the development of the building industry in China, the cast-in-situ building mode is changed into the assembled integral building mode which is prefabricated by factories and assembled on site, and the cast-in-situ building mode has become the mission of modern building practitioners, such as assembled walls, assembled floors and the like.
At present, the structure of assembled steel plate concrete floor includes the steel sheet of both sides and is located the concrete body between the steel sheet, wherein through anchor pipe fixed connection between the steel sheet of both sides to improve the joint strength between steel sheet and the concrete body.
With respect to the related art described above, the inventors believe that there is a limitation in the rigidity of the precast floor panels in a large span section, and an urgent need for improvement is felt.
Disclosure of Invention
In order to provide rigidity to the floor slab, the application provides an assembled steel plate concrete hollow floor slab and a manufacturing method thereof.
The application provides an assembled steel plate concrete hollow floor adopts following technical scheme:
the assembled steel plate concrete hollow floor slab comprises a plate body, wherein a bearing steel plate and a plurality of T-shaped steel are arranged in the plate body horizontally, and the flanges of the T-shaped steel are welded with the upper surface of the bearing steel plate; the bearing steel plate is provided with a profiled steel plate which is horizontally arranged, the wave crest of the profiled steel plate is positioned above the T-shaped steel, and the steel pipe is arranged above the wave trough of the profiled steel plate.
Through adopting above-mentioned technical scheme, through setting up profiled sheet and T shaped steel, utilize its high cross-section inertia moment of torsion's characteristics to improve overall structure's flexural strength and rigidity, and the profiled sheet is comparatively inseparable with the cooperation of T shaped steel, steel pipe respectively, thereby has taken into account the advantage of high rigidity and whole little thickness.
Optionally, a louver hole is formed at a position between the crest and the trough of the profiled steel sheet, an opening of the louver hole is downward, and a length direction of the louver hole is along a length direction of the steel pipe.
By adopting the technical scheme, when the profiled steel sheet is downwards placed on the bearing steel sheet, the unset concrete on the bearing steel sheet is extruded and extruded to the lower position of the wave crest of the profiled steel sheet, and meanwhile, the shutter holes are arranged and have a guiding effect on the concrete, so that the concrete fills the cavity below the wave crest of the profiled steel sheet firstly, and then the rest concrete overflows;
when the extruded concrete is insufficient to fill the cavity below the peak of the profiled steel sheet, the subsequently poured concrete can also enter the cavity below the peak of the profiled steel sheet through the louvres, thereby replenishing it.
Optionally, spiral convex teeth are welded on the outer circumferential surface of the steel pipe.
By adopting the technical scheme, firstly, the contact area between the steel member and the concrete can be enlarged by arranging the spiral convex teeth so as to improve the connection strength; secondly, in the process of pouring concrete, an external tool is utilized to drive the steel pipe to rotate positively and reversely, and the spiral convex teeth rotate to play a role in conveying and disturbing the concrete, so that the concrete is more uniformly distributed, the plate body is more solidified, and the bearing strength and the rigidity of the whole structure are improved.
Optionally, the upper surface at the trough of the profiled steel sheet is fixed with a plurality of first reinforcing rib plates, each first reinforcing rib plate is arranged at intervals along the length direction of the steel tube, and the gap between two adjacent first reinforcing rib plates is a tooth slot for the cooperation of the spiral convex teeth.
By adopting the technical scheme, through the sequential engagement of the spiral convex teeth and each tooth slot, the positive and negative torque of the spiral convex teeth is converted into driving pressure steel plates to reciprocate, so that the effect of vibrating concrete is achieved, the concrete is more susceptible to vibration and enters the tooth slot, the concrete is more solidified, and the bearing strength and the rigidity of the whole structure are greatly improved; in addition, the first reinforcing rib plate can greatly improve the section inertia torque of the profiled steel sheet, so that the bending strength of the whole structure is improved.
Optionally, a supporting sleeve is fixed on the bearing steel plate, and the end part of the steel pipe is matched with the supporting sleeve.
Through adopting above-mentioned technical scheme, after the concussion finishes, two adjacent steel pipes forward and reverse rotation respectively, and the effort of steel pipe is exerted on first reinforcement rib plate through the spiral dogtooth to make two adjacent groups of first reinforcement rib plates have opposite direction's effort, in this way, make the cooperation of steel pipe and profiled sheet inseparabler, and make there is prestressing force between the two, thereby show the rigidity that improves whole steel member.
Optionally, a plurality of second reinforcing rib plates are fixed on the lower surface of the crest of the profiled steel sheet, and each second reinforcing rib plate is arranged at intervals along the length direction of the steel tube.
Through adopting above-mentioned technical scheme, the setting of second reinforcement floor can greatly improve profiled steel sheet's cross-section inertia moment of torsion to improve overall structure's flexural strength.
Optionally, a connecting sleeve is arranged on the upper surface of the flange of the T-shaped steel, a spring is arranged below the crest of the profiled steel sheet, the upper end of the spring is clamped into a gap between two adjacent second reinforcing rib plates, and the lower end of the spring is inserted into the connecting sleeve.
Through adopting above-mentioned technical scheme, when profiled sheet is reciprocal to vibrate, the spring takes place the reciprocal vibration of short distance to vibrate the concrete in the cavity of profiled sheet crest below, thereby ensure the concrete solidification in this position, with the reduction cavity.
The application also provides a manufacturing method of the fabricated steel plate concrete hollow floor slab, which adopts the following technical scheme:
the manufacturing method of the assembled steel plate concrete hollow floor slab comprises the following steps:
s1, preparing a die;
s2, pouring bottom layer concrete;
s3, setting a steel member: placing the bearing steel plate welded with the T-shaped steel in advance on the bottom layer concrete, pouring a second layer of concrete on the bearing steel plate until the bearing steel plate is half of the T-shaped steel, then sequentially placing the profiled steel plate and the steel tube, ensuring that spiral convex teeth on the steel tube are matched with tooth grooves of the first reinforcing rib plate, pouring a third layer of concrete and closing the die;
s4, vibration solidification: the rotary vibration driving device is used for driving the steel pipe to periodically rotate forward and reversely so as to drive the profiled steel sheet to reciprocate, so that disturbance vibration is carried out on the concrete;
s5, curing the concrete.
Optionally, the rotary oscillation driving device comprises a servo motor arranged on the outer surface of the die, a connecting shaft is arranged at the output end of the servo motor, the connecting shaft penetrates through the die, and the connecting shaft is connected with the steel pipe in a rotation-stopping mode.
Through adopting above-mentioned technical scheme, through servo motor's forward and backward rotation in order to drive the steel pipe in the mould through the connecting axle and just reversing.
Optionally, in step S4, the mold is driven to rotate in the vertical circumferential surface by the rotating trolley while vibrating.
Through adopting above-mentioned technical scheme, through driving the holistic rotation of mould to increase the mobility of the concrete in the mould, the unidirectional vibration in the cooperation of rotational motion is with the rocking of formation multidimension degree effort, thereby further improve the flow diffusion efficiency of concrete, with the distribution homogeneity of improvement concrete.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the profiled steel sheet and the T-shaped steel, the bending strength and the rigidity of the whole structure are improved by utilizing the characteristic of high section inertia torque of the profiled steel sheet and the T-shaped steel, and the profiled steel sheet is tightly matched with the T-shaped steel and the steel pipe respectively, so that the advantages of high rigidity and small whole thickness are considered;
2. through the conveying function of the spiral convex teeth and the vibration function of the profiled steel sheet, the effect of vibrating concrete is achieved, the concrete distribution is more uniform, the concrete is more solidified, and the bearing strength and the rigidity of the whole structure are greatly improved;
3. the steel pipes and the profiled steel sheets are tightly matched by arranging the acting forces with opposite directions between the first reinforcing ribs of two adjacent groups, and prestress exists between the steel pipes and the profiled steel sheets, so that the rigidity of the whole structure is obviously improved.
Drawings
Fig. 1 is a sectional view of the fabricated steel plate concrete hollow floor slab of example 1.
Fig. 2 is a schematic view of the steel pipe of example 1.
FIG. 3 is a schematic view of a profiled steel sheet of example 1.
Fig. 4 is a schematic view of the steel member of example 2.
Fig. 5 is a partial enlarged view at a in fig. 4.
Fig. 6 is a schematic diagram for embodying a mold open state of embodiment 2.
Fig. 7 is a plan view of the steel sheet profiled in example 2.
Fig. 8 is a partial schematic view of embodiment 3 for embodying the spring position.
Fig. 9 is a schematic diagram for embodying the operation of the rotary trolley of embodiment 4.
Reference numerals illustrate: 1. a force-bearing steel plate; 2. profiled steel sheet; 3. t-shaped steel; 4. a steel pipe; 5. a mold; 6. a rotary trolley; 10. a plate body; 11. a support sleeve; 12. connecting sleeves; 13. a spring; 20. tooth slots; 21. a louver hole; 22. a second reinforcing rib; 23. a first reinforcing rib; 41. spiral convex teeth; 42. a rotation stopping groove; 51. a servo motor; 52. a connecting shaft; 61. a rotating motor; 62. and a clamping arm.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-9.
The embodiment 1 of the application discloses an assembled steel plate concrete hollow floor slab.
Referring to fig. 1, an assembled steel plate concrete hollow floor slab comprises a plate body 10 made of concrete, wherein a bearing steel plate 1 and a plurality of T-shaped steel 3 which are horizontally arranged are arranged in the plate body 10, the bearing steel plate 1 and the T-shaped steel 3 can be hot rolled steel, the T-shaped steel 3 are arranged at intervals, and the flanges of the T-shaped steel 3 are welded with the upper surface of the bearing steel plate 1.
As shown in fig. 1 and 2, a profiled steel sheet 2 arranged horizontally is placed on a bearing steel sheet 1, the wave crest of the profiled steel sheet 2 is located above a T-shaped steel 3, namely, a cavity below the wave crest of the profiled steel sheet 2 is in one-to-one fit with the T-shaped steel 3, a steel pipe 4 is placed above the wave trough of the profiled steel sheet 2, the steel pipe 4 is parallel to the T-shaped steel 3, spiral convex teeth 41 are welded on the outer surface of the steel pipe 4, the spiral convex teeth 41 can cover a whole section of the whole length of the steel pipe 4, and the spiral convex teeth 41 can be multiple sections distributed at intervals.
As shown in fig. 1 and 3, a louver 21 is provided at a portion between the crest and the trough of the profiled steel sheet 2, the opening of the louver 21 is provided downward, and the longitudinal direction of the louver 21 is provided along the longitudinal direction of the steel pipe 4. A plurality of second reinforcing rib plates 22 are welded on the lower surface of the wave crest of the profiled steel sheet 2, the length direction of the second reinforcing rib plates 22 is perpendicular to the axis of the steel tube 4, and the second reinforcing rib plates 22 are arranged at intervals along the length direction of the steel tube 4.
Embodiment 1 also discloses a manufacturing method of the fabricated steel plate concrete hollow floor slab, comprising the following steps:
s1, preparing a mold 5, wherein the mold 5 is horizontally arranged.
S2, pouring bottom layer concrete in the die 5.
S3, setting a steel member: placing the bearing steel plate 1 welded with the T-shaped steel 3 in advance on the bottom concrete, horizontally adjusting the bearing steel plate 1, ensuring that the bearing steel plate 1 is positioned at the middle part of the die 5, pouring a second layer of concrete on the bearing steel plate 1 until the concrete is half of the T-shaped steel 3, sequentially placing the profiled steel plate 2 and the steel tube 4, ensuring that part of the second layer of concrete overflows from the shutter holes 21 during the process, pouring a third layer of concrete, so as to be free of the profiled steel plate 2, and finally closing the die 5.
S4, curing the concrete.
The implementation principle of the embodiment 1 is as follows: firstly, the profiled steel sheet 2 and the T-shaped steel 3 have higher section inertia torque, so that the bending strength and rigidity of the whole structure can be effectively improved, and secondly, the profiled steel sheet 2 is tightly matched with the T-shaped steel 3 and the steel tube 4 respectively, so that the advantages of high rigidity and small whole thickness are achieved.
In example 2, as shown in fig. 4 and 5, a supporting sleeve 11 is fixed on the bearing steel plate 1, and the end of the steel pipe 4 is inserted into the supporting sleeve 11, and the steel pipe 4 is suspended at this time; the spiral convex teeth 41 are arranged in a plurality of sections, and the spiral convex teeth 41 of each section are arranged at intervals along the length direction of the steel pipe 4.
As shown in fig. 5, a plurality of first reinforcing ribs 23 are welded and fixed on the upper surface of the trough of the profiled steel sheet 2, gaps between every two first reinforcing ribs 23 are tooth grooves 20, each tooth groove 20 is arranged at intervals along the length direction of the steel tube 4, and the tooth grooves 20 are used for meshing with spiral convex teeth 41, that is, when the steel tube 4 rotates, the spiral convex teeth 41 on the tooth grooves are sequentially meshed with each tooth groove 20 so as to drive the profiled steel sheet 2 to horizontally move.
The manufacturing method of the fabricated steel plate concrete hollow floor slab of the embodiment 2 is different from the manufacturing method of the embodiment 1 in that holes corresponding to positions of the steel pipes 4 one by one are reserved on the mold 5, the holes are blocked by rubber plugs before concrete is poured, after the mold 5 is closed, vibration compaction of the concrete in the mold 5 is performed through a rotation vibration driving device outside the mold 5, specifically, as shown in fig. 5 and 6, the rotation vibration driving device comprises a servo motor 51, the servo motor 51 is mounted on the outer side surface of the mold 5 through bolts, a connecting shaft 52 is arranged at the output end of the servo motor 51, a rotation stopping block (not shown in the drawings) is arranged on the outer peripheral surface of the connecting shaft 52, rotation stopping grooves 42 are formed at the end positions of the inner peripheral surface of the steel pipes 4 along the length direction of the connecting shaft 52, the connecting shaft passes through the holes on the mold 5 and stretches into the inner parts of the steel pipes 4, and the rotation stopping blocks are in sliding fit with the rotation stopping grooves 42.
The steel tube 4 is driven to periodically rotate positively and negatively by the periodic positive and negative rotation of the servo motor 51, then the spiral convex teeth 41 and the tooth grooves 20 are sequentially meshed, namely, when the spiral convex teeth 41 rotate for a stage of angle, the spiral convex teeth 41 are matched with one tooth groove 20 to drive the profiled steel sheet 2 to horizontally move for a distance, the next tooth groove 20 is sent to the meshing starting point of the next spiral convex teeth 41, then the next spiral convex teeth 41 continue to rotate for the next stage of angle and mesh with the next spiral convex teeth 41, so that the continuous horizontal movement of the profiled steel sheet 2 is realized, and finally, the positive and negative torque of the spiral convex teeth 41 is converted into the driving profiled steel sheet 2 to reciprocate, so that the effect of oscillating concrete is achieved, the concrete is more solidified, and the bearing strength and the rigidity of the whole structure are greatly improved.
After vibration solidification, the two servo motors 51 drive the two adjacent steel pipes 4 to rotate forward and backward respectively, and at this time, the acting force of the steel pipes 4 is applied to the first reinforcing rib plates 23 through the spiral convex teeth 41, so that the first reinforcing rib plates 23 of the two adjacent groups have acting forces with opposite directions (the matching of the spiral convex teeth 41 and the tooth grooves 20 has self-locking property), as shown in fig. 7, so that the matching of the steel pipes 4 and the profiled steel plates 2 is tighter, and prestress exists between the steel pipes and the profiled steel plates, and the rigidity of the whole steel member is remarkably improved.
Finally, the bolts are disassembled, the servo motor 51 and the connecting shaft 52 are removed, and the rubber plugs are plugged again so as to carry out concrete maintenance.
In embodiment 3, as shown in fig. 8, springs 13 are arranged below the wave crest of the profiled steel sheet 2, the springs 13 are two groups, the two groups of springs 13 are symmetrically arranged with the web of the T-shaped steel 3 as the center, the connection mode is that connecting sleeves 12 which are arranged in one-to-one correspondence with the springs 13 are fixed on the upper surface of the flange of the T-shaped steel 3, the upper ends of the springs 13 are clamped into gaps between two adjacent second reinforcing rib plates 22, and the lower ends of the springs 13 are inserted into the connecting sleeves 12.
In this way, when the profiled steel sheet 2 oscillates reciprocally, the profiled steel sheet 2 drives the spring 13 to oscillate reciprocally for a short distance, so that the spring 13 oscillates the concrete in the cavity below the crest of the profiled steel sheet 2, thereby ensuring the concrete solidification degree of the part.
Embodiment 4, make following setting on the basis of embodiment 2, in the in-process of shock setting, utilize rotary trolley 6 to drive mould 5 and rotate in vertical circumference, specifically, when placing bearing steel sheet 1, profiled steel sheet 2 and steel pipe 4 in mould 5, pack the foam cushion at mould 5 medial surface to carry out horizontal spacing to bearing steel sheet 1, reduce the rocking of bearing steel sheet 1.
As shown in fig. 9, the rotary trolley 6 has a rotary motor 61, an output shaft of the rotary motor 61 is horizontally disposed, a clamp arm 62 is connected to an output shaft of the rotary motor 61, after the mold 5 is closed, the mold 5 is clamped by the clamp arm 62 while the servo motor 51 is kept in a rotating state, the rotary motor 61 is started to drive the mold 5 to rotate in a vertical circumferential surface, and a rotation axis of the mold 5 is parallel to an axis of the steel pipe 4.
In this way, the whole rotation of the mould 5 is performed, and meanwhile, the concrete in the mould 5 accelerates to flow, and meanwhile, the rotation motion is matched with the vibration in a single direction to form the shaking of the multi-dimensional acting force, so that the flow diffusion efficiency of the concrete is further improved, and the distribution uniformity of the concrete is improved.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. An assembled steel plate concrete hollow floor slab which is characterized in that: the steel plate comprises a plate body (10) and a die (5), wherein a bearing steel plate (1) and a plurality of T-shaped steel (3) which are horizontally arranged are arranged in the plate body (10), and the flange of the T-shaped steel (3) is welded with the upper surface of the bearing steel plate (1); a horizontally arranged profiled steel sheet (2) is arranged on the bearing steel sheet (1), the wave crest of the profiled steel sheet (2) is positioned above the T-shaped steel (3), and a steel pipe (4) is arranged above the wave trough of the profiled steel sheet (2); spiral convex teeth (41) are welded on the outer peripheral surface of the steel pipe (4); the upper surface of the trough of the profiled steel sheet (2) is fixedly provided with a plurality of first reinforcing rib plates (23), each first reinforcing rib plate (23) is arranged at intervals along the length direction of the steel tube (4), and a gap between two adjacent first reinforcing rib plates (23) is a tooth slot (20) for the cooperation of the spiral convex teeth (41); the outside of mould (5) is equipped with rotates and shakes drive arrangement, rotate and shake drive arrangement including installing in servo motor (51) of mould (5) surface, the output of servo motor (51) is equipped with connecting axle (52), and connecting axle (52) pass mould (5), and connecting axle (52) with steel pipe (4) are stopped to revolve and are connected.
2. The fabricated steel sheet concrete hollow floor slab according to claim 1, wherein: the position between the wave crest and the wave trough of the profiled steel sheet (2) is provided with a shutter hole (21), the opening of the shutter hole (21) is downwards arranged, and the length direction of the shutter hole (21) is arranged along the length direction of the steel tube (4).
3. The fabricated steel sheet concrete hollow floor slab according to claim 1, wherein: the bearing steel plate (1) is fixedly provided with a supporting sleeve (11), and the end part of the steel pipe (4) is matched with the supporting sleeve (11).
4. The fabricated steel sheet concrete hollow floor slab according to claim 1, wherein: a plurality of second reinforcing rib plates (22) are fixed on the lower surface of the wave crest of the profiled steel sheet (2), and the second reinforcing rib plates (22) are arranged at intervals along the length direction of the steel tube (4).
5. The fabricated steel sheet concrete hollow floor slab according to claim 4, wherein: the upper surface of the flange of the T-shaped steel (3) is provided with a connecting sleeve (12), a spring (13) is arranged below the crest of the profiled steel sheet (2), the upper end of the spring (13) is clamped into a gap between two adjacent second reinforcing rib plates (22), and the lower end of the spring (13) is inserted into the connecting sleeve (12).
6. A method of manufacturing an assembled steel sheet concrete hollow floor slab according to any one of claims 1, 3, 4, 5, characterized in that: the method comprises the following steps:
s1, preparing a die (5);
s2, pouring bottom layer concrete;
s3, setting a steel member: placing the bearing steel plate (1) welded with the T-shaped steel (3) in advance on bottom concrete, pouring a second layer of concrete on the bearing steel plate (1) until the bearing steel plate is half of the T-shaped steel (3), then sequentially placing the profiled steel plate (2) and the steel tube (4), ensuring that spiral convex teeth (41) on the steel tube (4) are matched with tooth grooves (20) of the first reinforcing rib plate (23), pouring a third layer of concrete and closing the die (5);
s4, vibration solidification: the rotary vibration driving device is used for driving the steel pipe (4) to periodically rotate forward and reversely to drive the profiled steel sheet (2) to reciprocate, so that disturbance vibration is carried out on concrete;
s5, curing the concrete.
7. The method for manufacturing the fabricated steel plate concrete hollow floor slab according to claim 6, wherein: in step S4, the mold (5) is driven to rotate in the vertical circumferential surface by the rotary trolley (6) while vibrating.
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| CN202210709141.5A CN115012571B (en) | 2022-06-22 | 2022-06-22 | Assembled steel plate concrete hollow floor slab and manufacturing method thereof |
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| CN202210709141.5A CN115012571B (en) | 2022-06-22 | 2022-06-22 | Assembled steel plate concrete hollow floor slab and manufacturing method thereof |
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| CN115012571B true CN115012571B (en) | 2023-07-28 |
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| CN115012571A (en) | 2022-09-06 |
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