CN109667377A - The construction method and prestressed concrete overlapped slab of prestressed concrete overlapped slab - Google Patents
The construction method and prestressed concrete overlapped slab of prestressed concrete overlapped slab Download PDFInfo
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- CN109667377A CN109667377A CN201910083969.2A CN201910083969A CN109667377A CN 109667377 A CN109667377 A CN 109667377A CN 201910083969 A CN201910083969 A CN 201910083969A CN 109667377 A CN109667377 A CN 109667377A
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- 238000010276 construction Methods 0.000 title claims abstract description 39
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 32
- 239000004567 concrete Substances 0.000 claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 230000002787 reinforcement Effects 0.000 claims abstract description 43
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 19
- 238000005266 casting Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 210000003205 muscle Anatomy 0.000 claims 1
- 239000010410 layer Substances 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 5
- 238000005336 cracking Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 208000005189 Embolism Diseases 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- E04B5/48—Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to the construction method and prestressed concrete overlapped slab of prestressed concrete overlapped slab, construction method are as follows: the precast prestressed thin plate of S1, in the multiple concrete reinforcement blocks of prestressed thin slab ontology upper end formed by integrally casting；S2 at the construction field (site), has connected the steel pipe of booster action on prestressed thin slab；Smooth adjusting is carried out to prestressed thin slab in S3 necessity situation；S4 is laid with transverse steel and longitudinal reinforcement and equipment installation above the prestressed thin slab between concrete reinforcement block；S5 is to pour bed die in prestressed thin slab upper end casting concrete with prestressed thin slab, and concreting to the position flushed with concrete reinforcement block upper end forms concrete folding layer；S6 removal connects the bolt of prestressed thin slab and steel pipe, takes steel pipe away, and prestressed thin slab, vertically and horizontally reinforcing bar and rear pouring concrete form prestressed concrete overlapped slab.This construction method saves construction form bracing, the deflection deformation adjustment after prestressed thin slab is put can be achieved, easy to operate, construction cost is low.
Description
Technical field
The present invention relates to assembled arthitecutral structure field, it is related to overlapping plate technique, specific prestressed concrete overlapped slab
Construction method and prestressed concrete overlapped slab.
Background technique
A kind of preferable structure type that superimposed sheet is prefabricated and cast-in-place concrete combines.Prestressed thin slab is cast-in-place with top
Concrete layer is combined into an entirety, works together.Prestressed thin slab is used as the bed die of cast-in-place concrete layer, then does not need another
Outer shuttering supporting；Superimposed sheet has globality, the rigidity of cast-in-situ floor are big, crack resistance is good, do not increase reinforcing bar consume, save mould
Plate.So superimposed sheet is then in booming period in China's floor using in development.Existing China mainly uses steel bar girder
Superimposed sheet and PK prestressing force superimposed sheet.
(1) steel bar girder superimposed sheet can increase the rigidity before superimposed sheet overlaps and bearing capacity significantly, good using designing
Good steel bar girder can satisfy the strength and stiffness needed before overlapping；Steel bar girder support frame, globality can be very good.But
It is that steel bar girder overlapping board member manufacture craft is more complicated；Need excessive live floor falsework.Due to truss bars
More complicated, equipment installation can lay inconvenience, and the protective layer of equipment installation is also not sufficiently thick；Due to steel bar girder superimposed sheet
Reinforcing bar has excessive Exposed reinforcement outside plate, will cause the waste of reinforcing bar.
(2) PK superimposed sheet uses prestressing force prefabricated plate with ribbing, and thin plate can bear construction loads, saves template and support,
Elongate holes are reserved on rib, reinforcing bar and pipeline can be worn in hole, form two-way reinforcement floor, use broken line in the edge joint position of thin plate
Reinforcing bar cracking resistance improves the cracking resistance of floor.Due to be provided with rib of slab so that prefabricated components in transport and work progress not
Frangibility, and can effectively control prestressing camber value.Since PK superimposed sheet uses pre-tensioning system technique, preset thin plate concrete
Reach and carry out prestressing force after 75% design strength and put, board bottom still prestressing camber is unstable；Double-T shaped section rib, double square
Section rib, rib holes transverse reinforcement, embolism extinguishing effect have much room for improvement.Since the rib of slab of PK plate and the gap of thin plate are not big enough, equipment pipe
After line setting, protective layer thickness is inadequate.
It retrieves, does not retrieve and this patent analogous technical scheme through the prior art.
Summary of the invention
It is an object of the present invention to provide a kind of prestressed concrete overlapped slab in place of overcome the deficiencies in the prior art
Construction method, which can save construction form bracing, the deflection deformation adjustment after prestressed thin slab is put can be achieved,
It is easy to operate, construction cost is low, the prestressed concrete overlapped slab as made from the construction method is smooth, can be convenient for equipment installation
It arranges and the protective layer of pipeline can be made to reach most enough thickness.
Above-mentioned purpose of the invention is realized by following technical solution:
A kind of construction method of prestressed concrete overlapped slab, which is characterized in that including following construction procedure:
The precast prestressed thin plate of S1, in the multiple concrete reinforcement blocks of prestressed thin slab ontology upper end formed by integrally casting, concrete
Reinforcement block is disposed in proximity to prestressed thin slab ontology both ends and medium position and arranges along the longitudinal direction of prestressed thin slab by row
Column, in the reserved bolt hole in the center of each concrete reinforcement block position corresponding with prestressed thin slab ontology；
S2 at the construction field (site), has connected the steel pipe of booster action: each of on prestressed thin slab on prestressed thin slab
A bolt is installed in prepared screw-bolt hole from bottom to top, and gasket is installed between nuts and the lower end surface of prestressed thin slab,
Bolt from the upper end that concrete reinforcement block stretches out installs steel pipe and by nut check, steel pipe along prestressed thin slab long side
Direction is arranged in parallel；
Smooth adjusting is carried out to prestressed thin slab in S3 necessity situation:
After prestressed thin slab is put, it may appear that three kinds of situations: 1, deflection deformation does not occur for prestressed thin slab；2, prestressing force
Thin plate both sides are constant, and middle part bends downward deformation；3, prestressed thin slab both sides are constant, and middle part bends upwardly-deformed；
For the first case, it does not need to carry out flatness adjusting, only needs to install the upper of position in each bolt of steel pipe in step 2
Side's connection upper nut；For second situation, installs in the bolts at two ends of steel pipe and be separately connected above and below position
Portion's nut and lower nuts are fixedly connected with the two-end part of steel pipe with the both sides of prestressed thin slab, and the middle part bolt of steel pipe
It installs position and only connects upper nut above, which is screwed, until the bolt in middle part bolt mounting hole
Upper protruded length is consistent with protruded length on the bolt in bolts at two ends mounting hole, is pulled up tune in the middle part of prestressed thin slab at this time
It is flat；For the third situation: being installed in the middle part bolt of steel pipe and be separately connected upper nut and lower part above and below position
Nut makes to be fixedly connected in the middle part of the middle part of steel pipe and prestressed thin slab, and the bolts at two ends mounting hole position of steel pipe is only upper
Side's connection upper nut, screws the upper nut at both ends, until protruded length on the bolt in bolts at two ends mounting hole
Consistent with spiral shell length outer on the bolt in the bolt mounting hole of middle part, the both sides of prestressed thin slab are pulled up leveling at this time；
S4 is laid with laterally above the prestressed thin slab after prestressed thin slab reaches formation state between concrete reinforcement block
Reinforcing bar, longitudinal reinforcement and equipment installation；
S5 is qualified through detection after the completion of reinforcing bar and equipment installation are all laid with, and meets design requirement, then thin with prestressing force
Plate is to pour bed die in prestressed thin slab upper end casting concrete, concreting to the position flushed with concrete reinforcement block upper end
It sets, forms concrete folding layer；
S6 backs out the nut of joint steel pipe and prestressed thin slab after concrete curing, takes steel pipe away and removal is installed on
Bolt in prepared screw-bolt hole and the gasket on bolt is covered, prestressed thin slab, vertically and horizontally reinforcing bar and rear pouring concrete form pre-
Prestressed concrete superimposed sheet.
The second object of the present invention is in place of overcome the deficiencies in the prior art, provides a kind of prestressed concrete overlapping
Plate, the superimposed sheet structure is simple, carries out equipment installation laying convenient for constructing, facilitating inside, increases the protection of equipment installation
Thickness degree.
A kind of prestressed concrete overlapped slab, it is characterised in that: the superimposed sheet is by above-mentioned prestressed concrete overlapped slab
Construction method be made, the superimposed sheet is by prestressed thin slab, the vertical, horizontal reinforcing bar and equipment pipe that are layed on prestressed thin slab
Line, after-pouring are formed in the concrete folding on prestressed thin slab；
The prestressed thin slab is by prestressed thin slab ontology and formed by integrally casting in the multiple mixed of prestressed thin slab ontology upper end
Solidifying soil reinforcement block is constituted；The vertical, horizontal reinforcing bar and equipment installation are layed between concrete reinforcement block.
And, the concrete reinforcement block is rectangular block structure.
The advantages and positive effects of the present invention are:
1, this construction method joint steel pipe above the concrete reinforcement block of prestressed thin slab, makes the rigidity of prestressed thin slab
It increases substantially, so as to bear biggish construction loads, the support of floor can be reduced in this way, in this embodiment it is not even necessary to the branch of floor
Support, has achieved the purpose that less construction form bracing；
2, this construction method passes through in the case where deflection deformation occurs after prestressed thin slab is put and adjusts corresponding position spiral shell
Upper square nut on bolt is, it can be achieved that the leveling of prestressed thin slab ensure that convenient for the construction of postorder prestressed concrete overlapped slab
The product quality of construction.
3, due to adjust prestressed thin slab not usually, nuts can form Concentrated load to prestressed thin slab,
By adding gasket between nuts and the lower end of prestressed thin slab, can be crushed to avoid office bad.
4, bolt, steel pipe, gasket, upper square nut and the lower square nut used in this construction method, in concrete folding layer
It after the completion of pouring, can remove, realize and reuse, reduce construction cost, save construction expenditure.
5, this prestressed concrete overlapped slab uses the structure of formed by integrally casting concrete reinforcement block on prestressed thin slab ontology,
The rigidity of prestressed thin slab is increased, is not easily broken prestressed thin slab in transit, in addition, structure is simplified, compared to
Complicated truss superimposed sheet facilitates construction production.
6, this prestressed concrete overlapped slab uses the structure of formed by integrally casting concrete reinforcement block on prestressed thin slab ontology,
Before concrete folding layer pours, can sufficiently it be laid with laterally and longitudinally between the concrete reinforcement block of prestressed thin slab ontology upper end
Reinforcing bar, the superimposed sheet after making casting concrete become two-way slab, in addition, due to there is sufficient cloth in prestressed thin slab ontology upper end
If space, to also facilitate the laying of equipment installation, the protective layer thickness of equipment installation is greatly improved.
7, this prestressed concrete overlapped slab is made by above-mentioned construction method, ensure that prestressed concrete overlapped slab
Flatness.
Detailed description of the invention
Fig. 1 is the Construction State solid of prestressed concrete overlapped slab of the present invention with reference to figure；
Fig. 2 is the Construction State Plane reference figure of prestressed concrete overlapped slab of the present invention；
Fig. 3 is the structural schematic diagram of prestressed concrete overlapped slab of the present invention；
Fig. 4 is the structural schematic diagram of prestressed thin slab of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawing and by specific embodiment, and following embodiment is descriptive
, it is not restrictive, this does not limit the scope of protection of the present invention.
A kind of construction method of prestressed concrete overlapped slab, referring to Figure 1-4, inventive point are as follows: including constructing as follows
Step:
The precast prestressed thin plate 1 of S1, in the upper end the prestressed thin slab ontology 1-1 multiple concrete reinforcement block 1-2 of formed by integrally casting,
Concrete reinforcement block is disposed in proximity to prestressed thin slab ontology both ends and medium position and the longitudinal direction along prestressed thin slab
By rows, in the reserved bolt hole 1-2- in the center of each concrete reinforcement block position corresponding with prestressed thin slab ontology
1.When prefabricated, according to the rigidity needs of floor, the quantity of strict control concrete reinforcement block, it is ensured that the rigidity of prestressed thin slab
Sufficiently large, guarantee does not fracture in transit.
S2 at the construction field (site), has connected the steel pipe 6 of booster action: each of on prestressed thin slab on prestressed thin slab
A bolt 8 is installed in prepared screw-bolt hole from bottom to top, and gasket 9 is installed between nuts and the lower end surface of prestressed thin slab,
From the upper end that concrete reinforcement block stretches out install steel pipe in bolt and by nut check, steel pipe along prestressed thin slab length
Edge direction is arranged in parallel.
Smooth adjusting is carried out to prestressed thin slab in S3 necessity situation:
After prestressed thin slab is put, it may appear that three kinds of situations: 1, deflection deformation does not occur for prestressed thin slab；2, prestressing force
Thin plate both sides are constant, and middle part bends downward deformation；3, prestressed thin slab both sides are constant, and middle part bends upwardly-deformed；
For the first case, it does not need to carry out flatness adjusting, only needs to install the upper of position in each bolt of steel pipe in step 2
Side's connection upper nut；For second situation, installs in the bolts at two ends of steel pipe and be separately connected above and below position
Portion's nut 7 and lower nuts 5, are fixedly connected with the two-end part of steel pipe with the both sides of prestressed thin slab, and the middle part spiral shell of steel pipe
Bolt installs position and only connects upper nut above, screws to the upper nut, until the spiral shell in middle part bolt mounting hole
Protruded length is consistent with protruded length on the bolt in bolts at two ends mounting hole on bolt, is pulled up in the middle part of prestressed thin slab at this time
Leveling；For the third situation: being installed in the middle part bolt of steel pipe and be separately connected upper nut above and below position under
Portion's nut makes to be fixedly connected in the middle part of the middle part of steel pipe and prestressed thin slab, and the bolts at two ends mounting hole position of steel pipe only exists
Top connects upper nut, and the upper nut at more both ends is screwed, until exposed length on the bolt in bolts at two ends mounting hole
Degree is consistent with outer spiral shell length on the bolt in the bolt mounting hole of middle part, and the both sides of prestressed thin slab are pulled up leveling at this time.It is above-mentioned
The bolt being threaded onto each prepared screw-bolt hole need to use the bolt of same size.
S4 is laid with laterally above the prestressed thin slab after prestressed thin slab reaches formation state between concrete reinforcement block
Reinforcing bar 2 and longitudinal reinforcement 4, specifically, being first laid with row reinforcing bar and longitudinal reinforcement still has abundance after the completion of being laid with reinforcing bar
Space installation apparatus pipeline, since coagulation reinforcement block height is sufficiently large, then the protective layer thickness of equipment installation can also increase.Equipment
Pipeline includes electric line, water pipeline etc..
S5 is qualified through detection after the completion of reinforcing bar and equipment installation are all laid with, and meets design requirement, then thin with prestressing force
Plate is to pour bed die in prestressed thin slab upper end casting concrete, concreting to the position flushed with concrete reinforcement block upper end
It sets, forms concrete folding layer 3.
S6 backs out the nut of joint steel pipe and prestressed thin slab after concrete curing, takes steel pipe away and removal is installed on
Bolt in prepared screw-bolt hole and the gasket on bolt is covered, prestressed thin slab, vertically and horizontally reinforcing bar and rear pouring concrete form pre-
Prestressed concrete superimposed sheet.
A kind of prestressed concrete overlapped slab, referring to Figure 1-4, the superimposed sheet is by above-mentioned prestressed concrete overlapped slab
Construction method be made, superimposed sheet structure are as follows: by prestressed thin slab, the vertical, horizontal reinforcing bar being layed on prestressed thin slab and set
Standby pipeline, after-pouring are formed in the concrete folding on prestressed thin slab.
The prestressed thin slab is by prestressed thin slab ontology and formed by integrally casting in the multiple mixed of prestressed thin slab ontology upper end
Solidifying soil reinforcement block is constituted；The vertical, horizontal reinforcing bar and equipment installation are layed between concrete reinforcement block.
The characteristics of above-mentioned concrete reinforcement block preferably uses rectangular block structure, has shape regular, is convenient for pouring construction.
Although disclosing the embodiment of the present invention and attached drawing for the purpose of illustration, those skilled in the art can be managed
Solution: do not departing from the present invention and spirit and scope of the appended claims in, various substitutions, changes and modifications be all it is possible,
Therefore, the scope of the present invention is not limited to the embodiment and attached drawing disclosure of that.
Claims (3)
1. a kind of construction method of prestressed concrete overlapped slab, which is characterized in that including following construction procedure:
The precast prestressed thin plate of S1, in the multiple concrete reinforcement blocks of prestressed thin slab ontology upper end formed by integrally casting, concrete is reinforced
Block be disposed in proximity to prestressed thin slab ontology both ends and medium position and along the longitudinal direction of prestressed thin slab by rows,
In the reserved bolt hole in the center of each concrete reinforcement block position corresponding with prestressed thin slab ontology；
S2 at the construction field (site), has connected the steel pipe of booster action on prestressed thin slab: reserving each of on prestressed thin slab
A bolt is installed in bolt hole from bottom to top, and gasket is installed between nuts and the lower end surface of prestressed thin slab, in bolt
Install steel pipe from the upper end that concrete reinforcement block stretches out and by nut check, steel pipe along prestressed thin slab longitudinal direction
It is arranged in parallel；
Smooth adjusting is carried out to prestressed thin slab in S3 necessity situation:
After prestressed thin slab is put, it may appear that three kinds of situations: 1, deflection deformation does not occur for prestressed thin slab；2, prestressed thin slab
Both sides are constant, and middle part bends downward deformation；3, prestressed thin slab both sides are constant, and middle part bends upwardly-deformed；For
The first situation does not need to carry out flatness adjusting, only needs to install in each bolt of steel pipe in step 2 and connect above position
Connect upper nut；For second situation, is installed in the bolts at two ends of steel pipe and be separately connected top spiral shell above and below position
Female and lower nuts, are fixedly connected with the two-end part of steel pipe with the both sides of prestressed thin slab, and the middle part bolt of steel pipe installs
Position only connects upper nut above, screws to the upper nut, until outer on the bolt in middle part bolt mounting hole
It is consistent with protruded length on the bolt in bolts at two ends mounting hole to reveal length, is pulled up leveling in the middle part of prestressed thin slab at this time；
For the third situation: being installed in the middle part bolt of steel pipe and be separately connected upper nut and lower part spiral shell above and below position
Mother makes to be fixedly connected in the middle part of the middle part of steel pipe and prestressed thin slab, and the bolts at two ends mounting hole position of steel pipe is only above
Connect upper nut, the upper nut at both ends is screwed, until bolts at two ends mounting hole in bolt on protruded length with
Outer spiral shell length is consistent on bolt in the bolt mounting hole of middle part, and the both sides of prestressed thin slab are pulled up leveling at this time；
S4 is laid with lateral steel above the prestressed thin slab after prestressed thin slab reaches formation state between concrete reinforcement block
Muscle, longitudinal reinforcement and equipment installation；
S5 is qualified through detection after the completion of reinforcing bar and equipment installation are all laid with, and meets design requirement, then with prestressed thin slab
To pour bed die in prestressed thin slab upper end casting concrete, concreting to the position flushed with concrete reinforcement block upper end
It sets, forms concrete folding layer；
S6 backs out the nut of joint steel pipe and prestressed thin slab after concrete curing, take steel pipe away and removal be installed on it is pre-
It stays the bolt in bolt hole and covers the gasket on bolt, prestressed thin slab, vertically and horizontally reinforcing bar and rear pouring concrete form pre- answer
Power concrete folding plate.
2. a kind of prestressed concrete overlapped slab, it is characterised in that: the superimposed sheet is by prestressed concrete described in claim 1
The construction method of native superimposed sheet is made, and the superimposed sheet is by prestressed thin slab, the vertical, horizontal reinforcing bar being layed on prestressed thin slab
It is formed with equipment installation, after-pouring in the concrete folding on prestressed thin slab；
The prestressed thin slab is by prestressed thin slab ontology and formed by integrally casting in multiple concrete of prestressed thin slab ontology upper end
Reinforcement block is constituted；The vertical, horizontal reinforcing bar and equipment installation are layed between concrete reinforcement block.
3. prestressed concrete overlapped slab according to claim 2, it is characterised in that: the concrete reinforcement block is rectangular
Block structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083969.2A CN109667377B (en) | 2019-01-29 | 2019-01-29 | Construction method of prestressed concrete laminated slab and prestressed concrete laminated slab |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910083969.2A CN109667377B (en) | 2019-01-29 | 2019-01-29 | Construction method of prestressed concrete laminated slab and prestressed concrete laminated slab |
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| Publication Number | Publication Date |
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| CN109667377A true CN109667377A (en) | 2019-04-23 |
| CN109667377B CN109667377B (en) | 2023-11-24 |
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Cited By (14)
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|---|---|---|---|---|
| CN110185182A (en) * | 2019-06-13 | 2019-08-30 | 天津城建大学 | Concrete folding plate construction is with being stably connected with structure and construction method |
| CN110725457A (en) * | 2019-11-18 | 2020-01-24 | 上海中森建筑与工程设计顾问有限公司 | Detachable-support assembled composite floor slab and construction method thereof |
| CN110748066A (en) * | 2019-11-27 | 2020-02-04 | 山东德建集团有限公司 | Support-free laminated slab comprising truss and truss machining device and method |
| CN112962848A (en) * | 2021-02-05 | 2021-06-15 | 江苏广兴集团建筑装配科技有限公司 | Laminated floor slab with improved bearing strength |
| CN112976256A (en) * | 2021-02-05 | 2021-06-18 | 王示 | Production process of prestressed concrete laminated slab bottom plate |
| CN113137075A (en) * | 2021-04-27 | 2021-07-20 | 荣华(青岛)建设科技有限公司 | Detachable tool for controlling reverse arch value of laminated slab and using method thereof |
| CN113175142A (en) * | 2021-05-14 | 2021-07-27 | 重庆中科建筑科技(集团)有限公司 | Construction method of composite floor slab with detachable additional stiffness part |
| CN113250362A (en) * | 2021-06-01 | 2021-08-13 | 武汉理工大学 | Concrete composite floor slab and supporting structure thereof |
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Application publication date: 20190423 Assignee: Tianjin United Chuangxing Technology Development Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000021 Denomination of invention: The construction method of prestressed concrete composite panels and prestressed concrete composite panels Granted publication date: 20231124 License type: Common License Record date: 20240126 Application publication date: 20190423 Assignee: Tianjin Liankai Technology Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000020 Denomination of invention: The construction method of prestressed concrete composite panels and prestressed concrete composite panels Granted publication date: 20231124 License type: Common License Record date: 20240129 Application publication date: 20190423 Assignee: Tianjin Xingdu Space Network Technology Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000019 Denomination of invention: The construction method of prestressed concrete composite panels and prestressed concrete composite panels Granted publication date: 20231124 License type: Common License Record date: 20240129 Application publication date: 20190423 Assignee: Yunneng Zhongchuang Investment Management (Tianjin) Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000018 Denomination of invention: The construction method of prestressed concrete composite panels and prestressed concrete composite panels Granted publication date: 20231124 License type: Common License Record date: 20240129 Application publication date: 20190423 Assignee: Tianjin 1919 Technology Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000017 Denomination of invention: The construction method of prestressed concrete composite panels and prestressed concrete composite panels Granted publication date: 20231124 License type: Common License Record date: 20240129 Application publication date: 20190423 Assignee: Liantai Kechuang (Tianjin) Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000016 Denomination of invention: The construction method of prestressed concrete composite panels and prestressed concrete composite panels Granted publication date: 20231124 License type: Common License Record date: 20240129 Application publication date: 20190423 Assignee: Gongneng Enterprise Management Consulting (Tianjin) Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000023 Denomination of invention: The construction method of prestressed concrete composite panels and prestressed concrete composite panels Granted publication date: 20231124 License type: Common License Record date: 20240126 Application publication date: 20190423 Assignee: Tianjin Huihe Investment Management Co.,Ltd. Assignor: Tianjin Chengjian University Contract record no.: X2024120000022 Denomination of invention: The construction method of prestressed concrete composite panels and prestressed concrete composite panels Granted publication date: 20231124 License type: Common License Record date: 20240126 |
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