CN114351927B - Profile steel concrete floor system and construction method thereof - Google Patents
Profile steel concrete floor system and construction method thereofInfo
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- CN114351927B CN114351927B CN202111637618.5A CN202111637618A CN114351927B CN 114351927 B CN114351927 B CN 114351927B CN 202111637618 A CN202111637618 A CN 202111637618A CN 114351927 B CN114351927 B CN 114351927B
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- ribbed
- base plate
- floor system
- reinforced concrete
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Abstract
本发明公开了一种型钢混凝土密肋空腔楼盖及其施工方法，涉及装配式空腔楼板技术领域，一种型钢混凝土密肋空腔楼盖包括面板层、至少两个空腔构件和密肋梁，空腔构件之间通过密肋梁连接，面板层覆设于空腔构件上，并与空腔构件和密肋梁成一整体；密肋梁设有混凝土基体、型钢基板和受力筋；受力筋设置于型钢基板上；空腔构件对称设有至少两个支撑位；支撑位与型钢基板连接，本发明中的一种型钢混凝土密肋空腔楼盖可以节省施工时间，免除模板并减少了支模撑杆的数量，节约工期，可有效降低成本。
This invention discloses a steel-concrete ribbed hollow floor slab and its construction method, relating to the field of prefabricated hollow floor slab technology. The steel-concrete ribbed hollow floor slab includes a panel layer, at least two hollow components, and ribbed beams. The hollow components are connected by the ribbed beams. The panel layer covers the hollow components and forms an integral whole with the hollow components and ribbed beams. The ribbed beams have a concrete matrix, a steel base plate, and reinforcing bars. The reinforcing bars are arranged on the steel base plate. The hollow components are symmetrically provided with at least two support positions. The support positions are connected to the steel base plate. This steel-concrete ribbed hollow floor slab can save construction time, eliminate the need for formwork, reduce the number of formwork supports, shorten the construction period, and effectively reduce costs.
Description
Technical Field
The invention relates to the technical field of assembled cavity floor slabs, in particular to a section steel concrete floor slab and a construction method thereof.
Background
At present, in the construction of an assembled building, the construction of an assembled cavity floor slab often adopts a partially prefabricated and partially cast-in-situ mode. The integral floor slab is formed by paving a prefabricated cavity and then casting a concrete beam in situ. On one hand, the construction method needs to support a large number of supports and templates at the bottom for supporting the weight of the cavity templates and cavities, especially the weight of the cast-in-situ beam, and under the existing construction technology, a large number of supports are needed to be densely arranged for ensuring the safety and reliability of the support, so that the space environment of a construction site is extremely limited, and in the construction period, on-site tool materials cannot be placed and are disordered, the construction progress is influenced, and potential safety hazards are reserved.
On the other hand, when the cast-in-place concrete is constructed, operators pedal and are stressed unevenly, a large amount of deformation phenomenon of the bottom of the slab is caused by sinking, at this time, the supporting structure is required to be adjusted or the local structural strength is correspondingly enhanced, the prior construction technology is extremely inconvenient for the adaptive adjustment, the conditions of crowded construction area, difficult worker penetration and the like are easily caused, the construction speed is low, the construction period is long, and the construction efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a section steel concrete floor system and a construction method thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the section steel concrete floor comprises a panel layer, at least two cavity members and a multi-ribbed beam, wherein the cavity members are connected through the multi-ribbed beam, and the panel layer is covered on the cavity members and is integrated with the cavity members and the multi-ribbed beam;
The dense rib beam is provided with a concrete matrix, a steel base plate and stress tendons, wherein the stress tendons are arranged on the steel base plate;
at least two supporting positions are symmetrically arranged on the cavity member, and the supporting positions are connected with the profile steel substrate.
On the basis of the technical scheme, the steel base plate is I-steel, channel steel, H-steel, inverted T-shaped steel or straight steel.
On the basis of the technical scheme, the stress reinforcement is an opening stirrup.
On the basis of the technical scheme, the stress bars and the steel base plates are welded or connected into a whole through bolts.
On the basis of the technical scheme, the supporting position is connected with the multi-ribbed beam in a bolt connection, a hinge connection or a bolt connection mode.
On the basis of the technical scheme, the supporting positions are grooves, bulges or overhanging reinforcing steel bars.
On the basis of the technical scheme, the support position is provided with a protective layer, wherein the protective layer is made of iron sheet, steel plate, plastic soft rubber or high-performance composite material.
On the basis of the technical scheme, the stress bars are embedded into the panel layer.
On the basis of the technical scheme, the end part of the profile steel substrate is a triangular splicing opening or a linear splicing opening.
On the basis of the technical scheme, the construction method of the steel reinforced concrete floor comprises the following steps of:
Positioning the axes of the frame beams and the multi-ribbed beams, and installing support rods on the crossing points of the multi-ribbed beams and the frame beams or under the crossing points between the multi-ribbed beams;
Step two, mounting top plates corresponding to the cross points at the top ends of the support rods;
Step three, respectively adjusting the extension heights of the support rods to meet the design requirement;
Step four, placing the profile steel substrates of the multi-ribbed beams in batches, and sequentially connecting and fixing the profile steel substrates into a grid shape;
hoisting the cavity member to finish the connection of the cavity member and the multi-ribbed beam;
step six, binding frame beam gluten or/and bottom gluten;
Step seven, installing pipelines;
pouring and tamping concrete of the frame beam, the wall and the multi-ribbed beam;
And step nine, curing and molding, and dismantling the support rods and the top plate.
Compared with the prior art, the invention has the advantages that:
(1) Compared with the prior art, the steel reinforced concrete floor system has the advantages that the arrangement of the steel base plates increases the early strength of the dense rib beams before concrete is poured, the complete template-free construction is realized, and the number of supporting vertical rods is reduced. In addition, the steel base plate material can directly participate in the stress action of the multi-ribbed beam, so that the reinforcement of the multi-ribbed beam is reduced, the construction period is saved, and the cost is effectively reduced. And a large number of templates and reinforcing steel bars are saved, and the carbon emission is effectively reduced.
(2) According to the steel reinforced concrete floor system, the multi-ribbed beam steel base plate modules which can be flexibly spliced and assembled are arranged, so that the shape and the size of the multi-ribbed beam can be freely adapted and adjusted, and the construction can be quickly matched and quickly completed according to a construction scheme.
(3) All the components of the steel reinforced concrete floor system can be produced and processed in batches and orderly in a factory, so that the steel reinforced concrete floor system is extremely convenient for transportation between sites, and has obvious construction economic benefit when being applied to lifting and assembling of high-rise buildings.
(4) The steel reinforced concrete floor system has reasonable layout and safe and reliable structure, greatly reduces the number of traditional supports, reserves a larger bottom space, is convenient for constructors to overhaul and pass, and solves the problem of 'many, miscellaneous and messy' of construction sites caused by the traditional support formwork.
Drawings
FIG. 1 is a schematic structural view of a steel reinforced concrete floor system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an overall installation structure of a steel reinforced concrete floor system in an embodiment of the invention;
FIG. 3 is a schematic view of a section steel concrete floor system with overlapping layers according to an embodiment of the present invention;
FIG. 4 is a schematic view of a multi-ribbed beam of a steel reinforced concrete floor system in an embodiment of the invention;
FIG. 5 is a schematic diagram of a structure in which a stress rib of a steel reinforced concrete floor is welded to a steel base plate;
FIG. 6 is a schematic structural view of a cavity member of a steel reinforced concrete floor system according to an embodiment of the present invention;
FIG. 7 is a front view of a cavity member of a steel reinforced concrete floor system in accordance with an embodiment of the present invention;
FIG. 8 is a schematic view of a section steel substrate splicing and combining structure of a section steel concrete floor system in an embodiment of the invention;
Fig. 9 is a top view of a steel reinforced concrete floor system according to an embodiment of the present invention.
In the figure, the structure comprises a 1-panel layer, a 2-cavity member, a 3-multi-ribbed beam, a 21-supporting position, a 22-protective layer, a 31-concrete matrix, a 32-steel base plate and 33-stress ribs.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Referring to a structural schematic diagram of a profiled steel concrete floor in the embodiment of the invention shown in fig. 1, the profiled steel concrete floor comprises a panel layer 1, at least two cavity members 2 and a multi-ribbed beam 3, wherein the cavity members 2 are connected through the multi-ribbed beam 3, and the panel layer 1 is covered on the cavity members 2 and is integrated with the cavity members 2 and the multi-ribbed beam 3.
Referring to the overall installation structure schematic diagram of the steel reinforced concrete floor system in the embodiment of the invention shown in figure 2,
Referring to fig. 4, in an embodiment of the present invention, a multi-ribbed beam of a steel reinforced concrete floor is shown, wherein the multi-ribbed beam 3 is provided with a concrete matrix 31, a steel base plate 32 and a stress bar 33, wherein the stress bar 33 is arranged on the steel base plate 32;
Referring to fig. 6 and 7, a schematic structural diagram of a cavity member of a profiled steel concrete floor system in an embodiment of the invention is shown, at least two supporting positions 21 are symmetrically arranged on the cavity member 2, and the supporting positions 21 are connected with a profiled steel substrate 32.
The steel base plate 32 is i-steel, channel steel, T-steel or straight steel.
The stressing tendons 33 are open stirrups. The main stress reinforcement is only arranged at the upper part, the lower part is not arranged or is less arranged, and the stress stirrup is downward.
The stress bars 33 are welded or bolted integrally with the steel base plate 32.
The supporting position 21 is connected with the multi-ribbed beam 3 by welding, bolting, hinging or bolting.
The support 21 is a groove, a protrusion or an overhanging steel bar.
The support 21 is provided with a protective layer 22, wherein the protective layer 22 is made of iron sheet, steel plate, plastic soft rubber or high-performance composite material.
Referring to fig. 3, a structural steel concrete floor according to the embodiment of the present invention has a schematic structure of laminated layers, and the stress bars 33 are embedded in the panel layer 1. According to the fact that whether the surface layers of the cavity component are exposed or not is divided into a superposed layer and a non-superposed layer, the steel reinforced concrete floor system with the superposed layer in the embodiment of the invention is embedded into the surface layer 1, so that the surface layer 1 and the multi-ribbed beam 3 are combined into an integral reinforced concrete structure after concrete pouring and solidification.
Referring to fig. 8, a schematic diagram of a splicing and combining structure of a section steel substrate 32 of a section steel concrete floor system in an embodiment of the invention is shown, and the end of the section steel substrate 32 is a triangular splicing opening or a linear splicing opening, so that the section steel substrate 32 can be spliced and overlapped into a required structural shape according to actual needs.
A construction method of a steel reinforced concrete floor comprises the following steps:
Positioning the axes of the frame beams and the multi-ribbed beams 3, and installing support rods at the crossing points of the multi-ribbed beams 3 and the frame beams or under the crossing points between the multi-ribbed beams 3;
Step two, mounting top plates corresponding to the cross points at the top ends of the support rods;
Step three, respectively adjusting the extension heights of the support rods to meet the design requirement;
step four, placing the profile steel substrates 32 of the multi-ribbed beams in batches, and sequentially connecting and fixing the profile steel substrates into a grid shape;
hoisting the cavity member 2 to finish the connection between the cavity member 2 and the multi-ribbed beam 3;
step six, binding frame beam gluten or/and bottom gluten;
Step seven, installing pipelines;
Pouring and tamping concrete of the frame beam, the wall and the multi-ribbed beam 3;
And step nine, curing and molding, and dismantling the support rods and the top plate.
In addition, the construction steps comprise binding the floor gluten, and casting and tamping frame beams, walls, multi-ribbed beams 3 and plate surface concrete. In particular, pins are provided on the top plate, and support bars are located at each intersection or at intervals of one intersection or at intervals of two intersections. The pins are only provided when the upper plate of the multi-ribbed beam 3 is a steel plate, and are generally not used.
Compared with the prior art, the steel reinforced concrete floor system has the advantages that the arrangement of the steel base plates increases the early strength of the dense rib beams 3 before concrete is poured, the complete template-free construction is realized, the supporting die frames are saved, and the number of supporting vertical rods is reduced. In addition, the steel base plate material can directly participate in the stress action of the multi-ribbed beam 3, so that the reinforcement of the multi-ribbed beam 3 is reduced, the construction period is saved, and the cost is effectively reduced. And a large number of templates and reinforcing steel bars are saved, and the carbon emission is effectively reduced.
According to the steel reinforced concrete floor system, the shape and the size of the construction dense rib beam 3 can be freely adapted and adjusted by arranging the dense rib beam 3 steel base plate modules which can be flexibly spliced and assembled, and the construction can be quickly matched and quickly completed according to a construction scheme. All the components of the steel reinforced concrete floor system can be produced and processed in batches and orderly in a factory, so that the steel reinforced concrete floor system is extremely convenient for transportation between sites, and has obvious construction economic benefit when being applied to lifting and assembling of high-rise buildings.
The steel reinforced concrete floor system has reasonable layout and safe and reliable structure, greatly reduces the number of traditional supports, reserves a larger bottom space, is convenient for constructors to overhaul and pass, and solves the problem of 'many, miscellaneous and messy' of construction sites caused by the traditional support formwork.
The invention is not limited to the embodiments described above, but a number of modifications and adaptations can be made by a person skilled in the art without departing from the principle of the invention, which modifications and adaptations are also considered to be within the scope of the invention. What is not described in detail in this specification is prior art known to those skilled in the art.
Claims (4)
1. The steel reinforced concrete dense rib cavity floor is characterized by comprising a panel layer (1), at least two cavity members (2) and dense rib beams (3), wherein the cavity members (2) are connected through the dense rib beams (3), and the panel layer (1) is covered on the cavity members (2) and is integrated with the cavity members (2) and the dense rib beams (3);
The multi-ribbed beam (3) is provided with a concrete matrix (31), a steel base plate (32) and stress ribs (33), wherein the stress ribs (33) are arranged on the steel base plate (32), the stress ribs (33) are embedded into the panel layer (1), the stress ribs (33) are open stirrups, a stress main rib is arranged at the upper part, the lower part is not provided, and the direction of the open stirrups is that the opening is downward;
The end part of the profile steel substrate (32) is a triangular splicing port or a linear splicing port;
The cavity member (2) is symmetrically provided with at least two supporting positions (21), the supporting positions (21) are connected with the profile steel substrate (32), the supporting positions (21) are of a protruding structure, and an iron sheet protection layer (22) is arranged on the protruding structure.
2. The steel reinforced concrete multi-ribbed hollow floor system of claim 1, wherein said steel base plate (32) is I-steel, channel steel, H-steel, inverted T-steel or straight steel.
3. A steel reinforced concrete multi-ribbed hollow floor system as in claim 1, wherein said stressing tendons (33) are welded or bolted to said steel base plate (32) as a unit.
4. A steel reinforced concrete multi-ribbed hollow floor system as in claim 1, wherein said support (21) is connected to said multi-ribbed beam (3) by welding, bolting, hinging or bolting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111637618.5A CN114351927B (en) | 2021-12-29 | 2021-12-29 | Profile steel concrete floor system and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111637618.5A CN114351927B (en) | 2021-12-29 | 2021-12-29 | Profile steel concrete floor system and construction method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114351927A CN114351927A (en) | 2022-04-15 |
| CN114351927B true CN114351927B (en) | 2026-01-13 |
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| CN202111637618.5A Active CN114351927B (en) | 2021-12-29 | 2021-12-29 | Profile steel concrete floor system and construction method thereof |
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| CN118547571B (en) * | 2024-07-24 | 2024-11-15 | 湖南省交通规划勘察设计院有限公司 | Bridge deck widening structure suitable for existing bridge structure and construction method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088434A (en) * | 2016-08-25 | 2016-11-09 | 中冶建筑研究总院有限公司 | A kind of assembling type steel structure overlapped hollow floor system and construction method thereof |
| CN217840517U (en) * | 2021-12-29 | 2022-11-18 | 湖北大成空间科技股份有限公司 | Section steel concrete floor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1339607A (en) * | 1971-04-21 | 1973-12-05 | Bastgen A | Reinforced concrete ribbed floor or roof structure |
| US8006450B2 (en) * | 2004-10-13 | 2011-08-30 | Plastedil S.A. | Composite floor structure with a protruding bar upper portion in a floor element groove |
| RU2601883C1 (en) * | 2015-11-20 | 2016-11-10 | Данила Васильевич Мельчаков | Permanent shuttering cavity forming element for reinforced-concrete hollow core board structures |
| CN208668729U (en) * | 2018-07-13 | 2019-03-29 | 中国化学工程第十四建设有限公司 | A kind of waffle beam prefabricated panel of polyphenyl template concrete roof system |
| CN109812011A (en) * | 2019-03-08 | 2019-05-28 | 清华大学建筑设计研究院有限公司 | Concrete floor free removal template and wiring system integrated in template and construction method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106088434A (en) * | 2016-08-25 | 2016-11-09 | 中冶建筑研究总院有限公司 | A kind of assembling type steel structure overlapped hollow floor system and construction method thereof |
| CN217840517U (en) * | 2021-12-29 | 2022-11-18 | 湖北大成空间科技股份有限公司 | Section steel concrete floor |
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