CN210263566U - Autoclaved aerated concrete composite floor slab - Google Patents
Autoclaved aerated concrete composite floor slab Download PDFInfo
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- CN210263566U CN210263566U CN201920706575.3U CN201920706575U CN210263566U CN 210263566 U CN210263566 U CN 210263566U CN 201920706575 U CN201920706575 U CN 201920706575U CN 210263566 U CN210263566 U CN 210263566U
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- aerated concrete
- autoclaved aerated
- shaped steel
- slab
- concrete slab
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- 239000004567 concrete Substances 0.000 title claims abstract description 122
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 91
- 239000010959 steel Substances 0.000 claims abstract description 91
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 27
- 239000002344 surface layer Substances 0.000 claims abstract description 22
- 238000005336 cracking Methods 0.000 claims abstract description 19
- 239000011376 self-consolidating concrete Substances 0.000 claims abstract description 13
- 238000010276 construction Methods 0.000 abstract description 14
- 238000003466 welding Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003014 reinforcing Effects 0.000 description 3
- 210000002356 Skeleton Anatomy 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model discloses an evaporate and press aerated concrete composite floor, its characterized in that: the anti-crack concrete slab comprises concrete structural beams, I-shaped steel, an autoclaved aerated concrete slab and a surface layer, wherein anti-crack reinforcing steel bars are arranged on two sides of a web plate of the I-shaped steel at equal intervals, the I-shaped steel is arranged between the two concrete structural beams at intervals, and two ends of the I-shaped steel are welded with the concrete structural beams; connecting sleeves are arranged on two sides of the autoclaved aerated concrete slab, openings are formed in the bottom and the outer side surface of each connecting sleeve, the positions of the connecting sleeves correspond to the positions of the anti-cracking reinforcing steel bars one by one, the autoclaved aerated concrete slab is arranged between the adjacent I-shaped steel bars, the anti-cracking reinforcing steel bars are inserted into the connecting sleeves, and the anti-cracking reinforcing steel bars are welded with the connecting sleeves; a gap is formed between the autoclaved aerated concrete slab and the web plate of the I-shaped steel, and self-compacting concrete is filled in the gap; the surface layer is arranged above the autoclaved aerated concrete slab. The utility model has the characteristics of construction speed is fast, construction cycle is short, bearing capacity is strong etc.
Description
Technical Field
The utility model relates to a floor structure especially relates to evaporate and press aerated concrete composite floor, belongs to the building structure field, is applicable to the floor among sandwich floor, assembled steel construction and the concrete structure.
Background
The light floor slabs on the market at present are mainly classified into two categories according to the stress characteristics. One type is that the light plate is directly stressed, and comprises an autoclaved aerated concrete slab light floor (AAC floor), a hollow concrete floor and the like; the other is that the steel skeleton is stressed, and the upper and lower surfaces are paved with wood artificial boards or gypsum boards.
The floor slab structure directly stressed by the light plate has the advantages of good sound insulation effect, good use comfort and the like. However, the strength of the autoclaved aerated concrete slab light floor slab is low, the span of the floor slab is limited, and a plurality of steel beams are required to be additionally arranged for a large-span structure, and the arrangement of the steel beams reduces the space utilization rate; concrete hollow floor slabs have been widely used, but due to the fact that hollow slabs are large in self weight and poor in anti-seismic performance, the concrete hollow floor slabs gradually quit the mainstream market. The floor structure with the stressed steel skeleton has the advantages that the strength of the light floor depends on the spacing and the cross section of the steel beams, the self weight is light, the strength is high, the manufacturing cost is high, and the sound insulation and fire resistance are poor.
In order to solve the problems, the utility model with application number 201721246901.4 discloses a reinforced autoclaved aerated concrete slab light composite floor slab, which comprises a concrete structural beam, T-shaped steel, an autoclaved aerated concrete slab and a surface layer, wherein embedded parts are arranged on the inner side surface of the concrete structural beam at intervals, and connecting plates are arranged on the embedded parts; the T-shaped steel web plate is arranged upwards, the T-shaped steel is arranged between the two concrete structural beams at intervals, two ends of the T-shaped steel are fixed on the connecting plate, and the top of the web plate of the T-shaped steel is fixed with a longitudinal steel bar; the autoclaved aerated concrete slabs are fixed on the flanges of two adjacent T-shaped steels, the gaps between the adjacent autoclaved aerated concrete slabs are provided with fine aggregate concrete fillers, the surface layer is arranged above the autoclaved aerated concrete slabs and the fine aggregate concrete fillers, and anti-cracking steel bars are arranged at the joint positions of the two autoclaved aerated concrete slabs at intervals.
The floor structure referred to in the above patent has the following drawbacks: firstly, the T-shaped steel is adopted to replace the traditional section steel, and a reinforcing steel bar is added on a web plate of the T-shaped steel, although the use amount of the steel is saved by the design, the welding requirement of the reinforcing steel bar and the T-shaped steel is higher, and the specification of the patent also shows that the structure of the T-shaped steel and the reinforcing steel bar has different stress performance compared with the I-shaped steel, so that the T-shaped steel and the reinforcing steel bar are not suitable for buildings with larger bearing load, such as warehouses; secondly, the anti-crack reinforcing steel bars of the patent are arranged in the surface layer, the thickness of the surface layer is relatively thin, the surface layer material cannot provide enough wrapping force, and the anti-crack effect is poor.
Disclosure of Invention
The utility model aims to design a stronger autoclaved aerated concrete composite floor slab with bearing capacity and anti-deformation capacity aiming at the defects existing in the prior art.
In order to achieve the purpose, the utility model provides a technical scheme does:
the utility model relates to an autoclaved aerated concrete composite floor slab, which comprises a concrete structure beam, I-shaped steel, an autoclaved aerated concrete slab and a surface layer, wherein the width of the upper flange of the I-shaped steel is smaller than that of the lower flange, anti-crack reinforcing steel bars are arranged on two sides of a web plate of the I-shaped steel at equal intervals, the I-shaped steel is arranged between the two concrete structure beams at intervals, and two ends of the I-shaped steel are welded with the concrete structure beams; connecting sleeves are arranged on two sides of the autoclaved aerated concrete slab, openings are formed in the bottom and the outer side surface of each connecting sleeve, the positions of the connecting sleeves correspond to the positions of the anti-cracking reinforcing steel bars one by one, the autoclaved aerated concrete slab is arranged between the adjacent I-shaped steel bars, the anti-cracking reinforcing steel bars are inserted into the connecting sleeves, and the anti-cracking reinforcing steel bars are welded with the connecting sleeves; a gap is formed between the autoclaved aerated concrete slab and the web plate of the I-shaped steel, and self-compacting concrete is filled in the gap; the surface layer is arranged above the autoclaved aerated concrete slab.
Preferably, the inner side of the concrete structure beam is provided with an embedded connecting piece, the embedded connecting piece is of a T-shaped structure, and a web plate of the I-shaped steel is welded with the embedded connecting piece.
Preferably, the open width of the connecting sleeve is 0.1-0.3 mm larger than the diameter of the anti-crack reinforcing steel bar.
Preferably, the section of the autoclaved aerated concrete slab is rectangular or trapezoidal.
Preferably, the heights of the top surface of the autoclaved aerated concrete slab, the top surface of the I-shaped steel and the top surface of the self-compacting concrete are the same.
Preferably, the inner side surface of the connecting sleeve is provided with a connecting steel bar, and the connecting steel bar is welded with a steel bar mesh inside the autoclaved aerated concrete slab.
Preferably, the width of the upper flange of the I-shaped steel is 1/2 of the width of the lower flange.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
the utility model relates to an evaporate and press aerated concrete composite floor to split the reinforcing bar at the both sides interval welding of I shaped steel web, this crack resistance reinforcing bar welds with the adapter sleeve that evaporates aerated concrete slab side, the distance of the face about crack resistance reinforcing bar and the composite floor is far away, make full use of self-compaction concrete's wrapping power, its anti effect of splitting is better, and increased I shaped steel and evaporate the joint strength who presses between the aerated concrete slab, composite floor is difficult for the rupture, consequently, it has better bearing capacity.
The utility model relates to an evaporate and press aerated concrete composite floor construction convenience, and use dry operation as the owner, construction cycle is short, just possesses sufficient bearing capacity after I shaped steel and evaporate aerated concrete slab construction completion, can carry out the construction of floor superstructure such as non-bearing partition wall in advance, shortens the idle period.
Drawings
FIG. 1 is a top view of an autoclaved aerated concrete composite floor slab with a surface layer removed according to the present invention;
FIG. 2 is a sectional view taken along line A-A of an autoclaved aerated concrete composite floor slab in the first embodiment;
FIG. 3 is a side view of an autoclaved aerated concrete panel according to a first embodiment;
FIG. 4 is a sectional view taken along line A-A of an autoclaved aerated concrete composite floor slab in the second embodiment;
FIG. 5 is a perspective view of an autoclaved aerated concrete panel in the second embodiment;
FIG. 6 is a cross-sectional view of an autoclaved aerated concrete panel according to a second embodiment;
fig. 7 is a perspective view of the connecting sleeve in the second embodiment.
Illustration of the drawings: 1-concrete structural beam, 11-embedded connecting piece, 2-I-shaped steel, 21-anti-crack reinforcing steel bar, 3-autoclaved aerated concrete slab, 31-connecting sleeve, 32-self-compacting concrete, 33-connecting reinforcing steel bar and 4-surface layer.
Detailed Description
For further understanding of the present invention, the present invention will be described in detail with reference to the following examples, which are provided for illustration of the present invention but are not intended to limit the scope of the present invention.
The first embodiment is as follows:
referring to the attached drawing 1, the embodiment relates to an autoclaved aerated concrete composite floor slab, which comprises a concrete structural beam 1, an i-shaped steel 2, an autoclaved aerated concrete slab 3 and a surface layer 4 (the surface layer 4 is omitted in the drawing 1). The inner side of the concrete structure beam 1 is provided with an embedded connecting piece 11, the embedded connecting piece 11 is of a T-shaped structure, and the embedded connecting piece 11 is embedded in the concrete structure beam 1 when the concrete structure beam 1 is poured.
Referring to the attached drawings 1 and 2, the width of the upper flange of the I-shaped steel 2 is smaller than that of the lower flange, anti-cracking reinforcing steel bars 21 are welded on two sides of a web plate of the I-shaped steel 2 at equal intervals, the I-shaped steel 21 is arranged between two concrete structural beams 1 at intervals, and two ends of the I-shaped steel 2 are welded with pre-embedded connecting pieces 11 on the concrete structural beams 1. Referring to the attached drawings 2 and 3, the cross section of each autoclaved aerated concrete slab 3 is rectangular, connecting sleeves 31 are arranged on two sides of each autoclaved aerated concrete slab 3, each connecting sleeve 31 is embedded in each autoclaved aerated concrete slab 3 when each autoclaved aerated concrete slab 3 is prefabricated in a factory, openings are formed in the bottom and the outer side face of each connecting sleeve 31, the width of each opening is 0.1-0.3 mm larger than the diameter of each anti-cracking steel bar 21, the positions of the connecting sleeves 31 correspond to the positions of the anti-cracking steel bars 21 one by one, the autoclaved aerated concrete slabs 3 are arranged between the adjacent I-shaped steel bars 2, the anti-cracking steel bars 21 are inserted into the connecting sleeves 31, and the anti-cracking steel bars 21 and the connecting sleeves 31 are. A gap is formed between the autoclaved aerated concrete slab 3 and the web plate of the I-shaped steel 2, self-compacting concrete 31 is filled in the gap, the heights of the top surface of the autoclaved aerated concrete slab 3, the top surface of the I-shaped steel 2 and the top surface of the self-compacting concrete 32 are the same, construction of a surface layer 4 is facilitated, and finally, the surface layer is constructed above the autoclaved aerated concrete slab 3.
The construction method of the autoclaved aerated concrete composite floor slab comprises the following steps: firstly, prefabricating an autoclaved aerated concrete slab 3 in an engineering, and embedding a connecting sleeve 31 in the autoclaved aerated concrete slab 3; then, the concrete structural beam 1 is cast in situ, and the embedded connecting piece 11 is embedded when the concrete structural beam 1 is cast; after the strength of the concrete structural beam 1 is reached, the I-shaped steel 2 is hoisted and welded, and anti-crack reinforcing steel bars 21 are welded on two sides of a web plate of the I-shaped steel 2 (the anti-crack reinforcing steel bars 21 can also be welded before the I-shaped steel 2 is hoisted); then hoisting the autoclaved aerated concrete slab 3, in the hoisting process, noting that the position of the connecting sleeve 31 is aligned with the position of the anti-crack reinforcing steel bar 21, and then welding the connecting sleeve 31 and the anti-crack reinforcing steel bar 21; erecting a mould below the opening at the bottom of the connecting sleeve 31, and pouring self-compacting concrete 32; and finally constructing a surface layer 4.
Example two:
referring to the attached drawing 1, the embodiment relates to an autoclaved aerated concrete composite floor slab, which comprises a concrete structural beam 1, an i-shaped steel 2, an autoclaved aerated concrete slab 3 and a surface layer 4 (the surface layer 4 is omitted in the drawing 1). The inner side of the concrete structure beam 1 is provided with an embedded connecting piece 11, the embedded connecting piece 11 is of a T-shaped structure, and the embedded connecting piece 11 is embedded in the concrete structure beam 1 when the concrete structure beam 1 is poured.
Referring to fig. 4, the width of the upper flange of the i-shaped steel 2 is smaller than that of the lower flange, and the width of the upper flange is 1/2 of the width of the lower flange, and the width of the upper flange cannot be too small or too large, so that the bearing capacity of the i-shaped steel 2 is affected too small, and the too large width brings difficulty to the welding construction of the later anti-crack steel bar 21 and the connecting sleeve 31. Anti-crack reinforcing steel bars 21 are welded on two sides of a web plate of the I-shaped steel 2 at equal intervals, the I-shaped steel 21 is arranged between the two concrete structure beams 1 at intervals, and two ends of the I-shaped steel 2 are welded with the pre-embedded connecting pieces 11 on the concrete structure beams 1. As shown in the attached drawings 4 to 7, the section of the autoclaved aerated concrete slab 3 is trapezoidal, and compared with the rectangular autoclaved aerated concrete slab 3, a larger construction gap is reserved for the welding construction of the anti-cracking steel bars 21 and the connecting sleeves 31, and the contact area between the self-compacting concrete 32 and the autoclaved aerated concrete slab 3 is increased, so that the connection strength between the self-compacting concrete 32 and the autoclaved aerated concrete slab 3 is higher. Connecting sleeves 31 are arranged on two sides of the autoclaved aerated concrete slab 3, the connecting sleeves 31 are pre-embedded in the autoclaved aerated concrete slab 3 when the autoclaved aerated concrete slab 3 is prefabricated in a factory, connecting steel bars 33 are arranged on the inner side surfaces of the connecting sleeves 31, the connecting steel bars 33 are welded with steel bar meshes in the autoclaved aerated concrete slab 3, openings are formed in the bottom and the outer side surfaces of the connecting sleeves 31, the width of each opening is 0.1mm larger than the diameter of each anti-cracking steel bar 21, the positions of the connecting sleeves 31 correspond to the positions of the anti-cracking steel bars 21 one by one, the autoclaved aerated concrete slab 3 is arranged between the adjacent I-shaped steel 2, the anti-cracking steel bars 21 are inserted into the connecting sleeves 31, and the anti. A gap is formed between the autoclaved aerated concrete slab 3 and the web plate of the I-shaped steel 2, self-compacting concrete 31 is filled in the gap, the heights of the top surface of the autoclaved aerated concrete slab 3, the top surface of the I-shaped steel 2 and the top surface of the self-compacting concrete 32 are the same, construction of a surface layer 4 is facilitated, and finally, the surface layer is constructed above the autoclaved aerated concrete slab 3.
The construction method of the autoclaved aerated concrete composite floor related in the second embodiment is the same as that of the first embodiment, and the description of the embodiment is omitted.
The present invention has been described in detail with reference to the embodiments, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (7)
1. The utility model provides an evaporate and press aerated concrete composite floor which characterized in that: the anti-crack concrete slab comprises concrete structure beams, I-shaped steel, an autoclaved aerated concrete slab and a surface layer, wherein the width of the upper flange of the I-shaped steel is smaller than that of the lower flange of the I-shaped steel, anti-crack reinforcing steel bars are arranged on two sides of a web plate of the I-shaped steel at equal intervals, the I-shaped steel is arranged between the two concrete structure beams at intervals, and two ends of the I-shaped steel are welded with the concrete structure beams; connecting sleeves are arranged on two sides of the autoclaved aerated concrete slab, openings are formed in the bottom and the outer side surface of each connecting sleeve, the positions of the connecting sleeves correspond to the positions of the anti-cracking reinforcing steel bars one by one, the autoclaved aerated concrete slab is arranged between the adjacent I-shaped steel bars, the anti-cracking reinforcing steel bars are inserted into the connecting sleeves, and the anti-cracking reinforcing steel bars are welded with the connecting sleeves; a gap is formed between the autoclaved aerated concrete slab and the web plate of the I-shaped steel, and self-compacting concrete is filled in the gap; the surface layer is arranged above the autoclaved aerated concrete slab.
2. The autoclaved aerated concrete composite floor slab according to claim 1, characterized in that: the inner side of the concrete structure beam is provided with an embedded connecting piece which is of a T-shaped structure, and a web plate of the I-shaped steel is welded with the embedded connecting piece.
3. The autoclaved aerated concrete composite floor slab according to claim 1, characterized in that: the open width of the connecting sleeve is 0.1-0.3 mm larger than the diameter of the anti-crack reinforcing steel bar.
4. The autoclaved aerated concrete composite floor slab according to claim 1, characterized in that: the section of the autoclaved aerated concrete slab is rectangular or trapezoidal.
5. The autoclaved aerated concrete composite floor slab according to claim 1, characterized in that: the heights of the top surface of the autoclaved aerated concrete slab, the top surface of the I-shaped steel and the top surface of the self-compacting concrete are the same.
6. The autoclaved aerated concrete composite floor slab according to claim 1, characterized in that: and the inner side surface of the connecting sleeve is provided with a connecting steel bar, and the connecting steel bar is welded with a steel bar mesh in the autoclaved aerated concrete slab.
7. The autoclaved aerated concrete composite floor slab according to claim 1, characterized in that: the width of the upper flange of the I-shaped steel is 1/2 of the width of the lower flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920706575.3U CN210263566U (en) | 2019-05-17 | 2019-05-17 | Autoclaved aerated concrete composite floor slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920706575.3U CN210263566U (en) | 2019-05-17 | 2019-05-17 | Autoclaved aerated concrete composite floor slab |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210263566U true CN210263566U (en) | 2020-04-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920706575.3U Active CN210263566U (en) | 2019-05-17 | 2019-05-17 | Autoclaved aerated concrete composite floor slab |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210263566U (en) |
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2019
- 2019-05-17 CN CN201920706575.3U patent/CN210263566U/en active Active
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