CN114517563A - Novel truss structure - Google Patents
Novel truss structure Download PDFInfo
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- CN114517563A CN114517563A CN202210245492.5A CN202210245492A CN114517563A CN 114517563 A CN114517563 A CN 114517563A CN 202210245492 A CN202210245492 A CN 202210245492A CN 114517563 A CN114517563 A CN 114517563A
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- Prior art keywords
- upper chord
- performance concrete
- ultra
- steel bars
- high performance
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- 239000011374 ultra-high-performance concrete Substances 0.000 claims abstract description 50
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000004567 concrete Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 44
- 239000010959 steel Substances 0.000 claims description 44
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 239000004568 cement Substances 0.000 claims description 9
- 238000010304 firing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 239000011376 self-consolidating concrete Substances 0.000 claims description 6
- 229910021487 silica fume Inorganic materials 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims 3
- 230000003014 reinforcing effect Effects 0.000 claims 2
- 239000004574 high-performance concrete Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 9
- 238000009415 formwork Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011372 high-strength concrete Substances 0.000 description 2
- 238000010586 diagram Methods 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
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
- E04C5/065—Light-weight girders, e.g. with precast parts
- E04C5/0653—Light-weight girders, e.g. with precast parts with precast parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/24—Cements from oil shales, residues or waste other than slag
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
-
- 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
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
The invention provides a novel truss structure, which comprises: the concrete component comprises an ultrahigh-performance concrete upper chord, wave-shaped web member reinforcing steel bars and lower chord reinforcing steel bars, wherein the ultrahigh-performance concrete upper chord is fixedly connected with the wave-shaped web member reinforcing steel bars, one part of each 2 wave-shaped web member reinforcing steel bars is embedded in the ultrahigh-performance concrete upper chord respectively, and the 2 wave-shaped web member reinforcing steel bars are welded and connected with the lower chord reinforcing steel bars. The invention has simple processing and convenient installation. Temporary support is not needed during construction, and a formwork is not needed on site. The equipment pipelines are pre-installed in the truss, so that the construction speed is high, and the construction period is shortened. According to different stress characteristics, a more appropriate material component proportion is adopted, and the material cost is further reduced.
Description
Technical Field
The invention relates to the field of fabricated buildings, in particular to a novel truss structure.
Background
Laminated floor slabs are the most common structural members of prefabricated buildings at present. In order to increase the overall rigidity of the composite floor slab, the composite floor slab needs to be additionally provided with a plurality of truss reinforcing steel bars between the laminated layer and the cast-in-situ layer. The truss reinforcing steel bars can also provide good shear resistance between the superposed layers and the cast-in-place layer, and provide hoisting convenience during production and construction.
The traditional truss reinforcing steel bar utilizes the characteristics of triangular stability and the excellent overall performance of a space truss, the mechanical property of the traditional truss reinforcing steel bar is far greater than that of other reinforcing steel bar combinations or common section steels, but compared with a cast-in-place floor slab, the steel content of the truss reinforcing steel bar is also greatly increased, and then the cost of the floor slab is increased.
The lower prefabricated plate material of the composite slab is made of the ultra-high performance concrete, so that the thickness of the prefabricated plate can be effectively reduced, and meanwhile, due to the reduction of the thickness, the conventional truss steel bar cannot provide enough rigidity and bending resistance in the hoisting and construction processes. The invention discloses a reinforced steel tube rib structure CN 215484084U, which provides a method for replacing the conventional truss upper chord steel bar by filling high-strength concrete in a steel tube, and the steel tube meets the bending resistance requirement in the hoisting and construction process, but the steel tube increases the material cost, and the production mode of filling the high-strength concrete inside has extremely low efficiency and is easy to generate internal holes.
Disclosure of Invention
Aiming at the problems in the prior art, one of the purposes of the invention is to utilize the characteristics of UHPC such as compression resistance, folding resistance and tensile strength to greatly improve, and further improve the integral rigidity of the laminated slab;
the invention has the second purpose that UHPC is adopted to replace upper chord steel bars, thereby effectively reducing the steel content;
The invention also aims to solve the problem of lifting safety caused by infirm welding of the conventional truss steel bars;
the fourth purpose of the invention is to adopt the material component proportion with lower cost according to the stress characteristic of the novel truss structure.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the novel truss structure comprises: the concrete comprises an ultrahigh-performance concrete upper chord, wave-shaped web member reinforcing steel bars and lower chord reinforcing steel bars, wherein the ultrahigh-performance concrete upper chord is fixedly connected with the wave-shaped web member reinforcing steel bars, one part of 2 wave-shaped web member reinforcing steel bars is respectively embedded in the ultrahigh-performance concrete upper chord, and the 2 wave-shaped web member reinforcing steel bars are welded and connected with the lower chord reinforcing steel bars;
further, the section of the upper chord of the ultra-high performance concrete is circular, and the diameter of the upper chord is 30-200 mm;
further, the section of the upper chord of the ultra-high performance concrete is semicircular, and the diameter of the upper chord is 30-200 mm;
furthermore, the section of the ultra-high performance concrete upper chord is rectangular, the height of the rectangle is 20mm-50mm, and the width of the rectangle is 30mm-100 mm;
further, the section of the upper chord of the ultra-high performance concrete is trapezoidal;
furthermore, the section of the ultra-high performance concrete upper chord is in a step shape.
Furthermore, the inside upper chord steel bar that contains of ultra high performance concrete upper chord member, upper chord steel bar and 2 wave form web member steel bar welded connection. When the upper chord member has higher tensile requirement, the ultra-high performance concrete can not meet the requirement, and the upper chord steel bar can be additionally arranged;
Optionally, prestressed upper chord steel bars are used.
The diameters of the corrugated web member reinforcing steel bars, the lower chord reinforcing steel bars and the upper chord reinforcing steel bars are 6-16 mm.
The lower chord steel bar of the novel truss structure is embedded in the ultra-high performance concrete precast slab to replace the conventional composite floor truss steel bar.
Furthermore, the novel truss structure can also be used in other components such as laminated wall boards and the like.
The ultrahigh-performance concrete upper chord member material is ultrahigh-performance self-compacting concrete and comprises cement, silica fume, quartz powder, fine sand, steel fiber and a water reducing agent, wherein the cement comprises the following components in parts by weight: silica fume: quartz powder: fine sand: the steel fiber comprises the following components in percentage by weight: 30-40: 8-10: 10-12: 35-50: 1-5, wherein the weight ratio of the water reducing agent to the water in the mixed solution is as follows: 5-10: 90-95.
The novel material is used for replacing cement components in the ultrahigh-performance self-compacting concrete, the novel material is prepared by firing coal gangue and red mud in a calcining kiln, the firing temperature is 500-700 ℃, and the firing time is 1-2 hours.
The production process of the novel truss structure comprises the following steps:
s1: processing truss reinforcing steel bars by using automatic truss production equipment;
s2: placing the truss steel bars in a mold;
s3: and filling UHPC concrete into the mould, and putting the mould into a warehouse after initial setting is achieved.
The novel truss structure provided by the invention is simple to process and convenient to install. Temporary support is not needed during construction, and a formwork is not needed on site. The equipment pipelines are pre-installed in the truss, so that the construction speed is high, and the construction period is shortened. According to different stress characteristics, a more appropriate material component proportion is adopted, and the material cost is further reduced.
Drawings
FIG. 1 is a first schematic view of a novel truss structure;
FIG. 2 is a schematic diagram II of a novel truss structure;
FIG. 3 is a third schematic view of a novel truss structure;
FIG. 4 is a fourth schematic view of the novel truss structure;
FIG. 5 is a fifth schematic view of the novel truss structure;
FIG. 6 is a sixth schematic view of the novel truss structure;
fig. 7 is a seventh schematic view of the novel truss structure;
fig. 8 is a schematic view eight of the structure of the novel truss;
in the figure, 1-ultra high performance concrete upper chord; 101-a circular ultra-high performance concrete upper chord; 102-semicircular ultrahigh-performance concrete upper chord; 103-a rectangular ultra-high performance concrete upper chord; 104-a trapezoidal ultra-high performance concrete upper chord; 105-step-shaped ultrahigh-performance concrete upper chord; 2-wave-shaped web member reinforcing steel bars; 3-lower chord steel bars; 4-upper chord steel bar.
Detailed Description
The present disclosure will be described in further detail with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the present disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
In a disclosed embodiment of the invention, referring to fig. 1, the novel truss structure comprises an ultrahigh-performance concrete upper chord member 1, waveform web member steel bars 2 and lower chord steel bars 3, wherein the ultrahigh-performance concrete upper chord member 1 is fixedly connected with the waveform web member steel bars 2, one part of each of the 2 waveform web member steel bars 2 is respectively embedded in the ultrahigh-performance concrete upper chord member 1, and the 2 waveform web member steel bars 2 are welded with the lower chord steel bars 3;
the section of the ultra-high performance concrete upper chord member 1 is circular;
referring to fig. 2 and 3, the section of the ultra-high performance concrete upper chord 1 is semicircular;
referring to fig. 4, the section of the ultra-high performance concrete upper chord 1 is rectangular;
referring to fig. 5, preferably, the section of the ultra-high performance concrete upper chord 1 is square;
referring to fig. 6, the section of the ultra-high performance concrete upper chord 1 is trapezoidal;
referring to fig. 7, the section of the ultra-high performance concrete upper chord member 1 is stepped.
In a disclosed embodiment of the invention, referring to fig. 8, the ultra-high performance concrete upper chord member 1 internally comprises an upper chord steel bar 4, and the upper chord steel bar 4 is welded and connected with 2 corrugated web member steel bars 2.
The diameters of the corrugated web member reinforcing steel bars 2, the lower chord reinforcing steel bars 3 and the upper chord reinforcing steel bars 4 are 6-16 mm.
The lower chord steel bar 3 of the novel truss structure is embedded in the ultra-high performance concrete precast slab to replace the conventional composite floor truss steel bar.
The ultrahigh-performance concrete upper chord 1 is made of ultrahigh-performance self-compacting concrete and comprises cement, silica fume, quartz powder, fine sand, steel fibers and a water reducing agent, wherein the cement: silica fume: quartz powder: fine sand: the steel fiber comprises the following components in percentage by weight: 30-40: 8-10: 10-12: 35-50: 1-5, wherein the weight ratio of the water reducing agent to the water in the mixed solution is as follows: 5-10: 90-95.
The ultra-high performance concrete has a very wide range of change of the proportion according to different material requirements, so that the proportion can be adjusted according to the compression resistance, the bending resistance and the tensile strength of a calculation result in the actual application process.
The novel material is used for replacing cement components in the ultrahigh-performance self-compacting concrete, the novel material is prepared by firing coal gangue and red mud in a calcining kiln, the firing temperature is 500-700 ℃, and the firing time is 1-2 hours.
It should be noted that the embodiments and features of the embodiments in the present disclosure may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
It will be understood by those skilled in the art that the foregoing embodiments are provided merely for clarity of explanation and are not intended to limit the scope of the disclosure. Other variations or modifications may be made to those skilled in the art, based on the above disclosure, and still be within the scope of the present disclosure.
Claims (7)
1. The novel truss structure comprises: super high performance concrete upper chord member (1), wave form web member reinforcing bar (2), last quarter reinforcing bar (3), its characterized in that: the ultrahigh-performance concrete upper chord member (1) is fixedly connected with the corrugated web member reinforcing steel bars (2), one part of each of 2 corrugated web member reinforcing steel bars (2) is embedded in the ultrahigh-performance concrete upper chord member (1), and the 2 corrugated web member reinforcing steel bars (2) are welded with the lower chord reinforcing steel bar (3);
the section of the ultra-high performance concrete upper chord (1) is circular;
the section of the ultra-high performance concrete upper chord (1) is semicircular;
the section of the ultra-high performance concrete upper chord (1) is rectangular;
the section of the ultra-high performance concrete upper chord member (1) is trapezoidal;
the section of the ultra-high performance concrete upper chord member (1) is in a step shape.
2. The novel truss structure of claim 1, wherein the ultra-high performance concrete upper chord member (1) internally comprises an upper chord steel bar (4), and the upper chord steel bar is welded and connected with 2 wave-shaped web member steel bars (2).
3. The new truss structure of claim 1 wherein the corrugated web reinforcement (2), lower chord reinforcement (3), upper chord reinforcement (4) are 6mm to 16mm in diameter.
4. The new truss structure of claim 1, wherein the lower chord steel (3) of the new truss structure is embedded in the ultra high performance concrete precast slab instead of the conventional composite floor truss steel.
5. The novel truss structure of claim 1, wherein the ultrahigh-performance concrete upper chord member (1) is made of ultrahigh-performance self-compacting concrete, and comprises cement, silica fume, quartz powder, fine sand, steel fiber and a water reducing agent, wherein the cement: silica fume: quartz powder: fine sand: the steel fiber comprises the following components in percentage by weight: 30-40: 8-10: 10-12: 35-50: 1-5, wherein the weight ratio of the water reducing agent to the water in the mixed solution is as follows: 5-10: 90-95.
6. The ultra-high performance concrete upper chord member according to claim 5, wherein a novel material is adopted to replace cement components in the ultra-high performance self-compacting concrete, the novel material is prepared by firing coal gangue and red mud in a calcining kiln, the firing temperature is 500-700 ℃, and the firing time is 1-2 hours.
7. The novel truss structure of claim 1, wherein the manufacturing process comprises:
s1: processing truss reinforcing steel bars by using automatic truss production equipment;
S2: placing the truss steel bars in a mold;
s3: and filling UHPC concrete into the mould, and putting the mould into a warehouse after initial setting is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210245492.5A CN114517563A (en) | 2022-03-14 | 2022-03-14 | Novel truss structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210245492.5A CN114517563A (en) | 2022-03-14 | 2022-03-14 | Novel truss structure |
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| CN114517563A true CN114517563A (en) | 2022-05-20 |
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| CN202210245492.5A Pending CN114517563A (en) | 2022-03-14 | 2022-03-14 | Novel truss structure |
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|---|---|---|---|---|
| JPH0826853A (en) * | 1994-07-15 | 1996-01-30 | Daido Concrete Kogyo Kk | Production of high-strength and lightweight concrete molding |
| CN101230670A (en) * | 2007-01-28 | 2008-07-30 | 邱则有 | Force-bearing type template component for building lid |
| CN106145784A (en) * | 2015-04-03 | 2016-11-23 | 北京清山怡和新材料技术开发有限公司 | Sea water with solid waste as raw material mixes foster type concrete and preparation method thereof |
| CN107235684A (en) * | 2017-06-21 | 2017-10-10 | 福州大学 | A kind of recycled fine aggregate ultra-high performance concrete and its application method |
| KR101791651B1 (en) * | 2016-05-12 | 2017-10-30 | (주)센벡스 | Reversed triangular truss deck for long span and Connection system of the truss deck and TSC beam |
| CN209099601U (en) * | 2018-09-11 | 2019-07-12 | 北京智慧云建科技有限公司 | A kind of UHPC ultra-high performance concrete steel bar girder laminated floor slab |
| CN112575946A (en) * | 2020-12-23 | 2021-03-30 | 贺州学院 | Prefabricated coincide floor of assembled |
| CN214220180U (en) * | 2020-12-22 | 2021-09-17 | 三一绿建(重庆)实业有限公司 | Laminated floor slab |
| CN114108938A (en) * | 2022-01-01 | 2022-03-01 | 易建网科技有限公司 | Prefabricated ultralow energy consumption insulation construction decorates integral structure |
| CN217027753U (en) * | 2022-03-14 | 2022-07-22 | 易建网科技有限公司 | Novel truss structure |
-
2022
- 2022-03-14 CN CN202210245492.5A patent/CN114517563A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0826853A (en) * | 1994-07-15 | 1996-01-30 | Daido Concrete Kogyo Kk | Production of high-strength and lightweight concrete molding |
| CN101230670A (en) * | 2007-01-28 | 2008-07-30 | 邱则有 | Force-bearing type template component for building lid |
| CN106145784A (en) * | 2015-04-03 | 2016-11-23 | 北京清山怡和新材料技术开发有限公司 | Sea water with solid waste as raw material mixes foster type concrete and preparation method thereof |
| KR101791651B1 (en) * | 2016-05-12 | 2017-10-30 | (주)센벡스 | Reversed triangular truss deck for long span and Connection system of the truss deck and TSC beam |
| CN107235684A (en) * | 2017-06-21 | 2017-10-10 | 福州大学 | A kind of recycled fine aggregate ultra-high performance concrete and its application method |
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| CN214220180U (en) * | 2020-12-22 | 2021-09-17 | 三一绿建(重庆)实业有限公司 | Laminated floor slab |
| CN112575946A (en) * | 2020-12-23 | 2021-03-30 | 贺州学院 | Prefabricated coincide floor of assembled |
| CN114108938A (en) * | 2022-01-01 | 2022-03-01 | 易建网科技有限公司 | Prefabricated ultralow energy consumption insulation construction decorates integral structure |
| CN217027753U (en) * | 2022-03-14 | 2022-07-22 | 易建网科技有限公司 | Novel truss structure |
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|---|
| 张国干: "《工业化学》", 31 October 1998, 湖南师范大学出版社, pages: 246 - 247 * |
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