CN201915557U - Reinforced concrete beam slab based on preset cast-in-place construction of thermal-insulation plate at bottom of beam slab - Google Patents
Reinforced concrete beam slab based on preset cast-in-place construction of thermal-insulation plate at bottom of beam slab Download PDFInfo
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- CN201915557U CN201915557U CN2011200087187U CN201120008718U CN201915557U CN 201915557 U CN201915557 U CN 201915557U CN 2011200087187 U CN2011200087187 U CN 2011200087187U CN 201120008718 U CN201120008718 U CN 201120008718U CN 201915557 U CN201915557 U CN 201915557U
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 79
- 238000010276 construction Methods 0.000 title claims abstract description 74
- 238000009413 insulation Methods 0.000 title abstract description 15
- 239000004567 concrete Substances 0.000 claims abstract description 42
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 10
- 238000010792 warming Methods 0.000 claims description 53
- 238000011065 in-situ storage Methods 0.000 claims description 39
- 239000000463 material Substances 0.000 claims description 34
- 238000004321 preservation Methods 0.000 claims description 29
- 230000003014 reinforcing effect Effects 0.000 claims description 18
- 238000004078 waterproofing Methods 0.000 claims description 18
- 238000000926 separation method Methods 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
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- 238000005516 engineering process Methods 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
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- 238000004134 energy conservation Methods 0.000 description 3
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- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000011083 cement mortar Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- NBGBEUITCPENLJ-UHFFFAOYSA-N Bunazosin hydrochloride Chemical compound Cl.C1CN(C(=O)CCC)CCCN1C1=NC(N)=C(C=C(OC)C(OC)=C2)C2=N1 NBGBEUITCPENLJ-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
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- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a reinforced concrete beam slab based on preset cast-in-place construction of a thermal-insulation plate at the bottom of the beam slab, which comprises a reinforced concrete cast-in-place beam slab, the thermal-insulation plate, an isolation layer, a waterproof layer and a concrete protection layer. The thermal-insulation plate is arranged below the reinforced concrete cast-in-place beam slab, the thermal-insulation plate and a reinforcing steel cage of the reinforced concrete cast-in-place beam slab are preset successively before concrete cast-in-place construction, the thermal-insulation plate and the reinforced concrete cast-in-place beam slab are integrated after the concrete cast-in-place construction, the isolation layer is laid on the reinforced concrete cast-in-place beam slab, the waterproof layer is distributed on the isolation layer, the concrete protection layer is arranged on the waterproof layer, and the concrete protection layer, the waterproof layer, the isolation layer, the reinforced concrete cast-in-place beam slab and the thermal-insulation plate are arranged from top to bottom. The reinforced concrete beam slab is reasonable in design, simple in construction steps, fine in construction effect, short in construction period and high in construction quality, and can overcome shortcomings such as complicated process, high technical difficulty, more difficulty in guaranteeing engineering quality, longer construction period, more complicated beam structure and the like.
Description
Technical field
The utility model relates to a kind of reinforced concrete girder slab, especially relates to a kind of reinforced concrete girder slab that presets cast-in-place construction based on heat preservation plate material at the bottom of the beam slab.
Background technology
In recent years, along with the continuous enhancing of people's environmental protection and energy saving consciousness, heat preservation plate material is popularized day by day in the building energy conservation application in engineering.When nowadays heat preservation plate material being constructed, mostly all adopt the concrete beam plate body be shaped after the job practices of bonding and thermal insulation plate at the bottom of concrete beam plate again, it is sticking construction method behind the warming plate at the bottom of the reinforced concrete girder slab, number of drawbacks and deficiencies such as but in the actual use, the girder construction that sticking construction method exists that construction technology is complicated, technical difficulty is higher behind the warming plate at the bottom of the above-mentioned reinforced concrete girder slab, workmanship be cannot say for sure to demonstrate,prove, the construction period is relatively long, construction is finished is comparatively complicated, economic benefit and social benefit are lower.As shown in Figure 1; the reinforced concrete beam that sticking construction method construction is finished behind the warming plate at the bottom of the employing reinforced concrete girder slab comprises reinforced concrete protective layer one 1-1, separation layer one 1-2, waterproofing course one 1-3, pea gravel concreten leveling layer 1-4, insulation layer one 1-5, sloping layer 1-6 and reinforced concrete roof board 1-7 from top to bottom; connection between comparatively complicated and each assembly of its structure is comparatively loaded down with trivial details, the complicated and construction inconvenience of job practices.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of reinforced concrete girder slab that presets cast-in-place construction based on heat preservation plate material at the bottom of the beam slab is provided, it is reasonable in design, construction sequence is simple and construction effect is good, short construction period, construction quality height, can solve comparatively number of drawbacks and deficiency such as complexity of sticking construction method exists behind the warming plate at the bottom of the existing beam slab construction technology complexity, technical difficulty height, workmanship be cannot say for sure to demonstrate,prove, the construction period is long, construction is finished girder construction.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind ofly preset the reinforced concrete girder slab of cast-in-place construction based on heat preservation plate material at the bottom of the beam slab, it is characterized in that: comprise the reinforced concrete cast-in-situ beam slab, be laid in reinforced concrete cast-in-situ beam slab below and before the reinforced concrete cast-in-situ beam slab is carried out concreting be used for the reinforced mesh of moulding reinforced concrete cast-in-situ beam slab or reinforcing cage is connected to one and concreting after build warming plate with the reinforced concrete cast-in-situ plate into one, be laid on the separation layer on the reinforced concrete cast-in-situ beam slab, be laid in waterproofing course and the concrete cover that is laid on the waterproofing course on the separation layer; Described concrete cover, waterproofing course, separation layer, reinforced concrete cast-in-situ beam slab and warming plate are from top to bottom laid.
Above-mentionedly preset the reinforced concrete girder slab of cast-in-place construction based on heat preservation plate material at the bottom of the beam slab, it is characterized in that: the bottom layer of the reinforcing steel net sheet colligation in described warming plate and described reinforced mesh or the described reinforcing cage is fixed as one.
Above-mentionedly preset the reinforced concrete girder slab of cast-in-place construction based on heat preservation plate material at the bottom of the beam slab, it is characterized in that: described warming plate is the EPX warming plate.
Above-mentionedly preset the reinforced concrete girder slab of cast-in-place construction, it is characterized in that based on heat preservation plate material at the bottom of the beam slab: described separation layer serve as reasons that the even agate hoof ester layer of brushing on the reinforced concrete cast-in-situ beam slab form every the vapour layer.
Above-mentionedly preset the reinforced concrete girder slab of cast-in-place construction based on heat preservation plate material at the bottom of the beam slab, it is characterized in that: the thickness of described reinforced concrete cast-in-situ beam slab is 150mm ± 20mm.
Above-mentionedly preset the reinforced concrete girder slab of cast-in-place construction based on heat preservation plate material at the bottom of the beam slab, it is characterized in that: the thickness of described concrete cover is 70mm ± 20mm.
Above-mentionedly preset the reinforced concrete girder slab of cast-in-place construction, it is characterized in that: the waterproofing course of described waterproofing course for forming by the SBS coiled material based on heat preservation plate material at the bottom of the beam slab.
The utility model compared with prior art has the following advantages:
1, easy construction, construction sequence are simple and use easy and simple to handle.
2, reasonable in design, heat preservation plate material presets cast-in-situ construction method at the bottom of the reinforced concrete girder slab, be before reinforced concrete girder slab is cast-in-place, earlier heat preservation plate material is positioned in advance the beam both sides of assembling reinforcement, prop up beam side and cast-in-place plate bed die then, the cast-in-place slab muscle of colligation on warming plate again, last concreting; Promptly changing warming plate " back is sticking " is " presetting ", heat preservation plate material and armored concrete slab is once put in order watered shaping; The adhesion stress of utilizing concrete and heat preservation plate material the two self with heat preservation plate material firmly build-in at the bottom of armored concrete slab, to play insulation, energy-conservation, heat insulation and deadening.
3, result of use is good and practical value is high, the utility model at the bottom of sticking construction technology changes reinforced concrete girder slab into behind the warming plate at the bottom of with traditional concrete beam plate heat preservation plate material preset cast-in-situ construction method, the job practices that is adopted with at the bottom of traditional beam slab after sticking job practices compare, simplified construction technology, reduced technical difficulty, guarantee workmanship, shortened the construction period, improved the economy and society benefit.Thereby, have science, advance, economy and practicality.
3, the construct concrete beam body finished is simple in structure and quality is higher, and quality control is convenient.
4, applied widely and popularizing application prospect is extensive, be applicable to the heat preservation plate material construction at the bottom of beam being arranged or do not have the girder cast-in-place concrete plate of different types of structure in the Industrial and Civil Engineering, it mainly is in order to the acting in conjunction of the absorption affinity on the adhesive property of cementing material and polystyrene plates surface and the adhesion strength that forms, the two is combined closely as theoretical foundation, construct according to construction technologies such as building energy conservation, reinforced concrete structure, external wall outer insulation and roofworkss again.
In sum, number of drawbacks and deficiencies such as the utility model is reasonable in design, construction sequence is simple and construction effect is good, short construction period, construction quality height, and girder construction that can solve effectively that the construction technology that sticking construction method exists behind the warming plate at the bottom of the existing reinforced concrete girder slab is complicated, technical difficulty is higher, workmanship be cannot say for sure to demonstrate,prove, the construction period is relatively long, construction is finished is comparatively complicated, economic benefit and social benefit are lower.If be used for room panel structure, can improve the compressive strength on roofing square, enlarge the function of use on roofing square, promptly use as the parking lot.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of traditional reinforced concrete beam.
Fig. 2 is a structural representation of the present utility model.
Fig. 3 is a job practices FB(flow block) of the present utility model.
Description of reference numerals:
1-1-reinforced concrete protective layer one; 1-2-separation layer one; 1-3-waterproofing course one;
1-4-pea gravel concreten leveling layer; 1-5-insulation layer one; The 1-6-sloping layer;
The 1-7-reinforced concrete roof board; The 1-concrete cover; The 2-waterproofing course;
The 3-separation layer; 4-reinforced concrete cast-in-situ beam 5-warming plate.
Plate;
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model comprise reinforced concrete cast-in-situ beam slab 4, be laid in reinforced concrete cast-in-situ beam slab 4 belows and before reinforced concrete cast-in-situ beam slab 4 is carried out concreting be used for the reinforced mesh of moulding reinforced concrete cast-in-situ beam slab 4 or reinforcing cage is connected to one and concreting after build warming plate 5 with reinforced concrete cast-in-situ beam slab 4, be laid on separation layer 3 on the reinforced concrete cast-in-situ beam slab 4, be laid in the waterproofing course 2 on the separation layer 3 and be laid in concrete cover 1 on the waterproofing course 2 for one.Described concrete cover 1, waterproofing course 2, separation layer 3, reinforced concrete cast-in-situ beam slab 4 and warming plate 5 are from top to bottom laid.
In the actual mechanical process, when reinforced concrete beam was carried out pouring construction, the bar construction that is used for moulding reinforced concrete cast-in-situ beam slab 4 was a reinforcing cage; When armored concrete slab is carried out pouring construction, be used for moulding reinforced concrete cast-in-situ beam slab 4 bar construction be reinforced mesh.
In the present embodiment, the bottom layer of the reinforcing steel net sheet colligation in described warming plate 5 and described reinforced mesh or the described reinforcing cage is fixed as one.Described warming plate 5 is the EPX warming plate, described separation layer 3 serve as reasons that the even agate hoof ester layer of brushing on reinforced concrete cast-in-situ beam slab 4 form every the vapour layer, described waterproofing course 2 is the waterproofing course of being made up of the SBS coiled material.The thickness of described reinforced concrete cast-in-situ beam slab 4 is 150mm ± 20mm, and the thickness of described concrete cover 1 is 70mm ± 20mm.In the practice of construction process, can adjust accordingly according to the thickness of the concrete needs of reality to reinforced concrete cast-in-situ beam slab 4 and concrete cover 1.
In the present embodiment, the reinforced concrete cast-in-situ beam slab of being poured into a mould 4 is concrete beam.In conjunction with Fig. 3, work progress of the present utility model is: at first, carry out the beam sides warming plate and preset construction, institute's employing beam bottom board plate width should be deck-siding and adds 2 times the beam sides warming plate and the thickness of side template, formwork erection is intact, must check its axial location, absolute altitude and width, meet the colligation construction that to carry out described reinforcing cage after drawing design and related specifications require by inspection; In the reinforcing cage colligation work progress, install cushion block in institute assembling reinforcement cage bottom; Beam side cushion block should use 40mm square, thickness is identical with the bed thickness of concrete cover 1, and be provided with the M10 cement mortar cushion block of galvanized wire, and the M10 cement mortar cushion block of installing must not be less than two row up and down, wherein lastrow must not be greater than 150mm at the bottom of the plate of reinforced concrete cast-in-situ beam slab 4, level interval is not more than 1m, and is accurate with the thickness and the beam side warming plate position that guarantee concrete cover 1; Simultaneously, the seam anyhow of beam side warming plate must be tight, should adopt thermal insulation mortar filling secret room greater than the seam of 3mm, and overgauge should appear in size during blanking, in order to avoid concrete slurry pours into the plate seam, makes warming plate produce displacement, and form cold bridge and influence heat insulation effect.Simultaneously, when the beam sides warming plate was preset, the male and fomale(M﹠F) of beam sides warming plate should be towards the inboard of beam, and the side form of another side and beam is close to.
Secondly, carry out that heat preservation plate material is the construction of presetting of warming plate 5 at the bottom of the concrete cast-in-place slab, the concrete cast-in-place slab soffit formwork install finish after, answer close inspection soffit formwork planeness, seam difference of height, the andante face of going forward side by side cleaning; Should press beam side warming plate when warming plate is warming plate 5 layings at the bottom of the plate, and at the external corner place every 500mm～700mm, go in the beam side warming plate with " ∏ " shape steel wire fork warming plate roof pendant straight cutting at the bottom of the cast-in-place plate, the two is connected as a single entity, and every external corner is no less than two; And the male and fomale(M﹠F) of warming plate 5 must be towards the plate face of reinforced concrete cast-in-situ beam slab 4, so that bond mutually with reinforced concrete cast-in-situ beam slab 4; Simultaneously, should notice that the horizontal joint of warming plate 5 must be tight, produce " kickboard " phenomenon in order to avoid concrete slurry pours into, and should preset by material cutting plan when laying warming plate 5, should closely paste mutually between the bulk of each warming plate 5.
Afterwards, carry out the colligation of concrete cast-in-place slab reinforced mesh, promptly described reinforcing cage is carried out the colligation construction, after warming plate 5 has been laid and is qualified by inspection, should brush one interfacial agents thereon, itself and concrete can better be bondd, again according to design drawing can be on warming plate pop-up board bottom layer of the reinforcing steel and fulgurite, the box position line, and to all snap the line check errorless after, the bottom layer of the reinforcing steel net sheet of the described reinforcing cage of colligation is installed fulgurite simultaneously immediately, box and hole to be provided core: in bottom layer of the reinforcing steel net sheet process of binding, to having the reinforcing bar of crotch, its crotch should make progress, and should steadily place, in order to avoid reinforcing bar damages the plate face of warming plate 5 in drawing process; Again on the plate face of warming plate 5 according to fulgurite, box position line, find out electric box place-centric point electric box is installed, and electricity consumption is drilled in four jiaos of places, electric box position and holes to the bed die end face, be that electric box thickness adds warming plate thickness with length then, " ∏ " shape reinforcing bar that span width equals 2 wide Φ 6mm of electric box inserts circular hole respectively and blocks electric box, and identified in steel bar end color separation japanning, so that secondary installing; Fix with the colligation of bottom layer of the reinforcing steel net sheet then, accurate with electric box position after guaranteeing concreting; Intact when the colligation of bottom layer of the reinforcing steel net sheet, after fulgurite, box are installed, prop up the bottom layer of the reinforcing steel net sheet that the pad colligation is finished with the marble cushion block, cushion block is answered quincuncial arrangement, and spacing must not be greater than 800mm; Carry out the reinforcing cage colligation of reinforced mesh at the middle and upper levels subsequently again, and during the colligation of top mat sheet, should lay frame plate, forbid to trample reinforcing bar and fulgurite, electric box; After treating that the colligation of top mat sheet is intact, lay prefabricated truncated cone-shaped concrete stirrup on the plate face of warming plate 5, as the structure support of top mat sheet, its spacing must not be greater than 800mm and quincuncial arrangement.
Then, carry out the beam slab concrete pouring construction, promptly reinforced concrete cast-in-situ beam slab 4 is carried out concrete pouring construction, treat that the reinforcing bar binding of described reinforcing cage is intact and inspect for acceptance and to carry out concreting after qualified, and before concreting, should on the top mat sheet, lay interim construction passage, in order to avoid cushion block, the stirrup local compression is excessive and damage warming plate 5, and in the concrete vibrating process, forbid vibrating head directly on warming plate, to vibrate, concrete curing simultaneously must not be less than the standard defined time and carry out the work of preserving moisture that covers.
At last, after treating that institute's fluid concrete solidifies, again beam-slab template is removed, beam-slab template is removed must determine its striking time according to the test report data and the code requirement of test cube in the same condition, and forbid during form removable with crowbar by the heat preservation plate material stripping, more not handy heavy pound hammer hammering template is in order to avoid influence heat preservation plate material.After the form removable, must not concentrate the preloading weight on the plate face of warming plate 5, big impact load shock plate face more must not be arranged, influence the secure bond of warming plate 5 in case concrete structure produces amount of deflection.After the form removable, should inspect for acceptance to the structure of reinforced concrete cast-in-situ beam slab 4 and the plate face of warming plate 5 immediately, and bonding foreign matters such as residual water mud on the plate face of warming plate 5 are conscientiously cleared up, repaired and protect.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (7)
1. one kind is preset the reinforced concrete girder slab of cast-in-place construction based on heat preservation plate material at the bottom of the beam slab, it is characterized in that: comprise reinforced concrete cast-in-situ beam slab (4), be laid in reinforced concrete cast-in-situ beam slab (4) below and before reinforced concrete cast-in-situ beam slab (4) being carried out concreting with the reinforced mesh that is used for moulding reinforced concrete cast-in-situ beam slab (4) or reinforcing cage is connected to one and concreting after build warming plate (5) with reinforced concrete cast-in-situ beam slab (4) into one, be laid on the separation layer (3) on the reinforced concrete cast-in-situ beam slab (4), be laid in the waterproofing course (2) on the separation layer (3) and be laid in concrete cover (1) on the waterproofing course (2); Described concrete cover (1), waterproofing course (2), separation layer (3), reinforced concrete cast-in-situ beam slab (4) and warming plate (5) are from top to bottom laid.
2. preset the reinforced concrete girder slab of cast-in-place construction according to claim 1 is described based on heat preservation plate material at the bottom of the beam slab, it is characterized in that: described warming plate (5) is fixed as one with bottom layer of the reinforcing steel net sheet colligation in described reinforced mesh or the described reinforcing cage.
3. describedly preset the reinforced concrete girder slab of cast-in-place construction based on heat preservation plate material at the bottom of the beam slab according to claim 1 or 2, it is characterized in that: described warming plate (5) is the EPX warming plate.
4. describedly preset the reinforced concrete girder slab of cast-in-place construction according to claim 1 or 2, it is characterized in that based on heat preservation plate material at the bottom of the beam slab: described separation layer (3) serve as reasons that the even agate hoof ester layer of brushing on reinforced concrete cast-in-situ beam slab (4) form every the vapour layer.
5. describedly preset the reinforced concrete girder slab of cast-in-place construction based on heat preservation plate material at the bottom of the beam slab according to claim 1 or 2, it is characterized in that: the thickness of described reinforced concrete cast-in-situ beam slab (4) is 150mm ± 20mm.
6. preset the reinforced concrete girder slab of cast-in-place construction according to claim 5 is described based on heat preservation plate material at the bottom of the beam slab, it is characterized in that: the thickness of described concrete cover (1) is 70mm ± 20mm.
7. describedly preset the reinforced concrete girder slab of cast-in-place construction according to claim 1 or 2, it is characterized in that: the waterproofing course of described waterproofing course (2) for forming by the SBS coiled material based on heat preservation plate material at the bottom of the beam slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200087187U CN201915557U (en) | 2011-01-12 | 2011-01-12 | Reinforced concrete beam slab based on preset cast-in-place construction of thermal-insulation plate at bottom of beam slab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200087187U CN201915557U (en) | 2011-01-12 | 2011-01-12 | Reinforced concrete beam slab based on preset cast-in-place construction of thermal-insulation plate at bottom of beam slab |
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| CN201915557U true CN201915557U (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011200087187U Expired - Fee Related CN201915557U (en) | 2011-01-12 | 2011-01-12 | Reinforced concrete beam slab based on preset cast-in-place construction of thermal-insulation plate at bottom of beam slab |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459521A (en) * | 2020-11-16 | 2021-03-09 | 中国矿业大学 | Structure for adding roof parking lot or gymnasium park to existing building and implementation method |
| CN114658151A (en) * | 2022-03-25 | 2022-06-24 | 中建一局集团第三建筑有限公司 | Bottom plate heat-preservation ceiling and integrated construction method thereof |
-
2011
- 2011-01-12 CN CN2011200087187U patent/CN201915557U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459521A (en) * | 2020-11-16 | 2021-03-09 | 中国矿业大学 | Structure for adding roof parking lot or gymnasium park to existing building and implementation method |
| CN112459521B (en) * | 2020-11-16 | 2022-02-15 | 中国矿业大学 | A structure and implementation method for adding a roof parking lot or fitness field to an existing building |
| CN114658151A (en) * | 2022-03-25 | 2022-06-24 | 中建一局集团第三建筑有限公司 | Bottom plate heat-preservation ceiling and integrated construction method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20160112 |