CN112412015A - Formwork-supporting-free system construction method for irregular concrete gutter - Google Patents
Formwork-supporting-free system construction method for irregular concrete gutter Download PDFInfo
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- CN112412015A CN112412015A CN202011395414.0A CN202011395414A CN112412015A CN 112412015 A CN112412015 A CN 112412015A CN 202011395414 A CN202011395414 A CN 202011395414A CN 112412015 A CN112412015 A CN 112412015A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/064—Gutters
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/064—Gutters
- E04D13/068—Means for fastening gutter parts together
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/064—Gutters
- E04D13/068—Means for fastening gutter parts together
- E04D13/0685—Means for fastening gutter parts together in combination with hanging means
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- E—FIXED CONSTRUCTIONS
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- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/08—Forming boards or similar elements, which are collapsible, foldable, or able to be rolled up
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- G—PHYSICS
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- G06F30/00—Computer-aided design [CAD]
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Abstract
The invention discloses a formwork-supporting-free system construction method for an irregular concrete gutter. Building a concrete gutter BIM model, determining the specifications of a steel bottom die and a steel top die, and manufacturing; hoisting the steel bottom die in place for installation; binding concrete gutter reinforcing steel bars on the steel bottom mould and fixing the steel top mould; and pouring concrete, dismantling the steel top die, curing and forming the concrete, and forming the concrete gutter fixed on the steel bottom die. The invention can utilize the steel bottom mould to replace the lower part reinforcing steel bar of the concrete gutter and simultaneously serve as a gutter template, realizes the formwork-free concrete pouring, and has the advantages of firmness, cost saving and efficiency improvement.
Description
Technical Field
The invention relates to concrete gutter construction, in particular to a formwork-free construction method of an irregular concrete gutter.
Background
Along with the continuous development of building construction technology, the special-shaped public buildings combining a steel structure and a concrete structure are more and more common, and the roofs and the enclosure structures are special-shaped and irregular, so that the seamless heat preservation, the structural waterproof and the maintenance convenience of the roofs are better realized, and the irregular special-shaped cast-in-place concrete gutter is often adopted. The construction of the structural form becomes a new technical problem, and particularly in large public buildings, the roof gutter is high in construction height, self-loaded, complex in plane abnormity and large in height difference. If the traditional mode frame body is adopted, the width is large, the height is high, the potential safety hazard is large, the erection period of the support frame is long, the economic benefit is poor, the customized template is adopted, and the forming quality of the constructed concrete is poor. The requirements of the construction period and the economic benefit at the present stage can not be met.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to construct the irregular special-shaped cast-in-place concrete gutter. The invention provides a formwork-supporting-free system construction method for an irregular concrete gutter, which solves the problems.
The invention is realized by the following technical scheme:
a formwork-supporting-free system construction method of an irregular concrete gutter comprises the steps of,
s1, establishing a concrete gutter BIM model and a stress analysis model, wherein the concrete gutter BIM model comprises a special-shaped gutter three-dimensional digital model, and specifications of a steel bottom die and a steel top die are defined;
s2, manufacturing the steel bottom die and the steel top die according to the BIM model;
s3, hoisting the steel bottom die in place according to the BIM model, and arranging steel bars and a steel top die on the steel bottom die;
and S4, pouring concrete, removing the steel top die, and curing and molding the concrete to form the concrete gutter fixed on the steel bottom die.
Adopt above-mentioned scheme: the decorative steel bottom die is mainly designed and manufactured to meet the bearing capacity without being dismantled, the steel bottom die is welded and fixed on a steel structure roof, the steel bottom die meets the bearing and deformation requirements of concrete pouring construction loads in a construction stage, the steel bottom die is not dismantled in a use stage, and the steel bars below the concrete gutter are replaced to meet the bearing and deformation requirements of design loads in the use stage.
Before on-site construction, the BIM software such as Tekla software is used for uniformly modeling the steel structure roof and the roof special-shaped gutter. Through the optimization design of the BIM model, the special-shaped gutter is converted into a three-dimensional digital model from a two-dimensional plane drawing, and the spatial relationship between the special-shaped gutter and the steel structure roof is reflected visually. And (4) according to the section size of the gutter, carrying out statistical analysis on parameters such as related dead weight, construction load and the like, and determining the plate thickness and the section size of the steel bottom die.
And after the available BIM is determined, providing the BIM for a steel structure processing factory, converting the BIM into a processing model, and realizing digital processing of the gutter steel bottom die. And after the processing is finished and the BIM is delivered from the factory, hoisting and installing in place at the corresponding installation position according to the built BIM. After the steel bottom die is installed, concrete gutter steel bars and a steel top die matched with the steel bottom die are arranged on the steel bottom die, and the steel bottom die and the steel top die jointly form a shaping die of the concrete gutter. And finally, pouring concrete, removing the formwork and maintaining to finish the installation of the irregular concrete gutter. After the irregular concrete gutter is cured and formed, the steel bottom mold is not detached, but is left on the steel structure roof as a part for decorating and bearing pressure, and the detached steel top mold can be used for other places needing concrete pouring according to the specification.
Preferably, in step S2, before the steel bottom mold is manufactured, the steel bottom mold is pre-segmented on the BIM model according to the BIM model result and the field working condition, and the segmented steel bottom mold is manufactured respectively; then in step S3, the segmented steel bottom molds are sequentially mounted in place. Furthermore, the joint of the steel bottom die section is integrally welded and formed.
In the scheme: because the length of the irregular concrete gutter is longer, the difficulty of one-time installation is higher. Therefore, according to the field working conditions such as the concrete gutter building plane positioning length and the tower crane arrangement condition, the steel bottom die is designed in sections, and the processing length of each section is determined. And then processing each section of steel bottom die according to the content on the BIM model. In order to ensure the quality of the segmented steel bottom die, the steel bottom die can be numbered, measured and confirmed before the steel bottom die component is processed and taken out of the field. After the steel bottom die is installed, in order to prevent concrete leakage caused by leaks at joints of the segmented steel bottom die and ensure the strength of the joints of the steel bottom die, the joints of the segmented steel bottom die are integrally welded and formed, and the construction load requirement of cast-in-place concrete is met.
Preferably, in step S1, when performing BIM modeling, design calculation is performed on the concrete gutter section steel bars, the specification of the shear transmission device, and the spacing; in step S3, the shear conveyor is welded to the steel bottom die face.
In the scheme: in order to ensure that the concrete gutter is better connected with the steel bottom mould, a shear transmission device is arranged. According to the thickness and the section size of the steel bottom die, the bearing capacity of the common stress of the concrete reinforcing bar and the steel bottom die is checked, the bearing capacity is divided into two stages, the construction process and the use stage are carried out, the specification and the interval of the gutter reinforcing bar and the transmission shear which meet the bearing capacity are determined, and reinforcing bars and sensors are arranged according to the obtained specification and the interval.
Preferably, in step S3, before the steel bottom mold is mounted in place, a bracket is provided, the bracket is attached to the bottom surface of the steel bottom mold and is welded to the bottom surface of the steel bottom mold and the gutter mounting plane, and the distance between the brackets is 2m to 3 m.
In the scheme: according to the section size of the gutter, parameters such as relative dead weight, construction load and the like are statistically analyzed, the distance between stress brackets for supporting the gutter is determined by checking calculation, and the distance range is considered to be 2.0-3.0 m.
Preferably, in step S1, when performing BIM modeling, the total station is used to measure the position and height drop of the finished gutter installation plane, and a concrete gutter BIM model is established according to the measured data.
In the scheme: because the formwork-supporting-free system of the concrete gutter has a large requirement on BIM deepening design in the early stage of construction, in order to prevent the difference between the finished gutter installation plane and a design drawing, the on-site actual installation of the gutter is mainly performed, the position and the height drop of the finished gutter installation plane are measured by using a total station, and a concrete gutter BIM model is established according to the measured data.
Preferably, in step S2, after the steel bottom mold is completed, the actual machining length and the external dimension are measured, and a physical integral installation model is established in combination with the concrete gutter BIM model; in step S3, during the installation process of the steel bottom form, a total station is used to measure the position of the whole roof gutter plane and the height drop, and the model is integrally installed in combination with the real object to perform verification.
In the scheme: after the finished steel bottom die component enters the field, the component is measured and rechecked, unit simulation pre-assembly is carried out according to the actual processing length and the overall dimension, an entity integral installation model is established by combining the original BIM model, and a processing plant is contacted to process the component with the problem in length in time, so that the processing error of the component is reduced.
Because the gutter steel bed die is installed on the irregular roof, the gutter changes greatly along with the inclination of the roof, and in the installation process of the steel bed die, a total station is utilized to measure and supervise the whole roof gutter, collect and gather related measurement data in time, and an entity integral installation model is input through a computer BIM technology, so that comparison and verification are carried out, follow-up installation is guided, installation errors are eliminated, and rework is avoided.
The concrete for the formwork-supporting-free system construction method of the irregular concrete gutter has the concrete slump of 140 +/-20 mm and the expansibility of less than or equal to 300 mm.
In the scheme: according to the structural form of the irregular roof gutter and the pouring requirement of the concrete, the concrete not only needs to meet the pumping requirement, but also ensures the flowing property of the concrete. Finally, the slump of the concrete is determined to be 140 +/-20 mm, and the expansibility is less than or equal to 300 mm.
In order to meet corresponding conditions, the concrete raw materials and the mixing proportion are designed, the cement is P.O42.5, the sand is medium sand, the fly ash is II-grade fly ash, the slag is S95 blast furnace slag powder, the stones are 5-25 broken stones, and the additive is a polycarboxylic acid high-performance water reducing agent, wherein the cement is 280kg, the sand ratio is 44%, the additive is 2.4% and the mineral admixture mixing amount is 21%.
The invention has the following advantages and beneficial effects:
1. the construction method can replace the steel bars at the lower part of the concrete gutter with the steel bottom formwork, greatly shorten the construction time of the steel bars, improve the production efficiency, and simultaneously realize formwork-free concrete pouring as a gutter formwork;
2. the method can be suitable for the construction of the steel structure net rack, the upper part of the space steel truss and the irregular concrete gutter with the special-shaped steel structure;
3. the traditional steel pipe scaffold supporting system is replaced, the expenditure for building the scaffold is reduced, and the cost is reduced;
4. visualization is realized by manufacturing a BIM model of the special-shaped gutter, so that collision nodes and unreasonable design positions can be found in advance, and design is optimized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is an overall configuration diagram at the stage of use of embodiment 1 of the present invention;
FIG. 2 is a sectional view of the construction stage of embodiment 1 of the present invention;
reference numbers and corresponding part names in the drawings:
1-steel bottom die, 2-steel bar, 3-bracket, 4-shear transmission device, 5-gutter and 6-steel top die.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
A formwork-supporting-free system construction method for an irregular concrete gutter comprises the following steps:
s1, building a concrete gutter BIM model and a stress analysis model, and designing a steel bottom die 1, a steel top die 6, a steel bar 2, a shear transmission device 4 and a bracket 3.
Measuring the position and the height drop of a finished mounting plane of the gutter 5 by using a Tianbao spectrum FOCUS35 automatic servo total station, uniformly modeling the steel structure roof and the roof special-shaped gutter 5 by using Tekla software according to measurement data, converting a two-dimensional plane drawing of the gutter 5 into a three-dimensional digital model, and visually reflecting the spatial relationship between the special-shaped gutter 5 and the steel structure roof;
according to the section size of the gutter 5, carrying out statistical analysis on parameters such as related dead weight, construction load and the like, checking and calculating to determine the distance between the stress brackets 3 for supporting the gutter 5, considering the distance range of 2.0 m-3.0 m, and simultaneously determining the plate thickness and the section size of the steel bottom die 1;
according to the plate thickness and the section size of the steel bottom die 1, the bearing capacity of the common stress of the concrete reinforcing bar and the steel bottom die 1 is calculated through checking, the construction process and the use stage are divided into two stages, and the specification and the interval of reinforcing bar distribution of the gutter 5 and the shear transmission device 4 are determined.
S2, manufacturing a steel bottom die 1;
and sending the BIM model to a processing factory, and carrying out sectional treatment on the steel bottom die 1 by the processing factory according to the building plane positioning length of the concrete gutter 5 and the arrangement condition of the tower crane to determine the processing length of each section. And manufacturing the steel bottom die 1 according to the determined segmentation mode.
After the finished steel bottom die 1 component enters the field, the component is measured and rechecked, small assembly unit simulation pre-assembly is carried out according to the actual processing length and the overall dimension, the small assembly unit simulation pre-assembly is compared with the original BIM model, a physical installation model is established, a processing factory is timely contacted for processing the rod piece with the problem in length, and the processing error of the rod piece is reduced.
The steel die block 1 is pasted with the two-dimensional code after being checked to be qualified, and the two-dimensional code information comprises: component number, mounting position, height, component length, weight, manufacturer information. The site management utilizes the technology of Internet of things to realize intelligent identification, positioning and monitoring of the component source of the steel bottom die 1.
S3, mounting a bracket 3, mounting a steel bottom die 1, binding steel bars 2 on the steel bottom die 1, welding a shear transfer device 4 and fixing a steel top die 6.
A bracket 3 is arranged on the installation plane of the gutter 5, and the steel bottom die 1 is welded on the bracket 3 according to a BIM model.
When a 5mm thick steel bottom die 1 made of Q235B is adopted as a concrete gutter 5 supporting system on site, structural stress analysis confirms that the steel bottom die 1 can be used for replacing a steel bar 2 at the lower part of the concrete gutter 5 in the original design drawing, so that the using amount of the steel bar 2 is reduced, and the construction efficiency is improved.
In the installation process of the steel bottom die 1, the whole roof gutter 5 is measured and supervised by using a Tianbao spectrum FOCUS35 automatic servo total station, the whole roof gutter 5 is positioned, paid off and supervised and measured in the whole process, relevant measurement data are collected and gathered in time, a physical integral installation model is input through a computer BIM technology, follow-up installation is guided, and installation errors are eliminated.
And S4, pouring concrete, removing the steel top die 6, and curing and forming the concrete to form the concrete gutter 5 fixed on the steel bottom die 1.
The concrete not only meets the pumping requirement, but also ensures the flowing property of the concrete. Finally, the slump of the concrete is determined to be 140 +/-20 mm, and the expansibility is less than or equal to 300 mm.
The concrete is P.O42.5 selected cement, medium sand selected sand, II-grade fly ash selected fly ash, S95 blast furnace slag powder selected slag, 5-25 broken stone selected stones selected as the stone, and polycarboxylic acid high-performance water reducing agent selected as the additive, wherein the cement is 280kg, the sand rate is 44%, the additive is 2.4%, and the mixing amount of mineral admixture is 21%.
The roof gutter 5 is ultrahigh and overlong, the concrete thickness of the gutter 5 is 120mm, the concrete strength is C30, the variation of the gutter 5 along with the elevation of the roof is large, and the on-site concrete pouring adopts a vehicle-mounted pump to be matched with the tower crane hopper to carry out the concrete pouring construction together.
After the steel top die 6 is dismantled, the steel top die can be moved to other construction sites for concrete pouring.
According to benefit analysis, the calculation is carried out according to the relative support height of 28m-40m and the total length 560m of the gutter 5: the traditional high formwork system charging items comprise scaffold erection, an inner membrane plate and an outer membrane plate of a gutter 5, a reinforcing steel bar 2 and a total amount of 145 thousands of RMB in labor cost, and the construction period is 75 days.
Therefore, compared with the traditional system, the construction method reduces the erection of a scaffold, reduces the arrangement of the reinforcing steel bars at the lower part of the concrete gutter, is provided with the reusable steel top die, has the advantages of low cost and short construction period compared with the traditional system, and simultaneously ensures the precision of the gutter due to the fact that the BIM model is adopted for operation guidance in the whole process.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A formwork-supporting-free system construction method of an irregular concrete gutter is characterized by comprising the following steps: comprises the steps of (a) carrying out,
s1, building a concrete gutter (5) BIM model and a stress analysis model, wherein the concrete gutter (5) BIM model comprises a gutter (5) three-dimensional digital model, and specifications of a steel bottom die (1) and a steel top die (6) are defined;
s2, manufacturing the steel bottom die (1) and the steel top die (6) according to the BIM model;
s3, hoisting the steel bottom die (1) in place according to the BIM model, and arranging the steel bars (2) and the steel top die (6) on the steel bottom die (1);
and S4, pouring concrete, detaching the steel top die (6), and curing and forming the concrete to form the concrete gutter (5) fixed on the steel bottom die (1).
2. The formwork support-free system construction method of the irregular concrete gutter as claimed in claim 1, wherein: in step S2, according to the BIM model result and the field working condition, the steel bottom die (1) is designed in a segmented manner, and the segmented steel bottom die (1) is manufactured; in step S3, the segmented steel bottom dies (1) are sequentially mounted in place.
3. The formwork support-free system construction method of the irregular concrete gutter as claimed in claim 2, wherein: in step S3, the steel bottom die (1) is integrally welded and formed at the section joints when the steel bottom die (1) is installed.
4. The formwork support-free system construction method of the irregular concrete gutter as claimed in claim 1, wherein: in step S1, during BIM modeling, the specifications and the spacing of the section steel bars (2) and the shearing transmission devices (4) of the concrete gutter (5) are designed and calculated; in step S3, the shear transfer device (4) is welded to the die surface of the steel bottom die (1).
5. The formwork support-free system construction method of the irregular concrete gutter as claimed in claim 1, wherein: in the step S3, before the steel bottom die (1) is installed in place, a bracket (3) is arranged, the bracket (3) is attached to the bottom surface of the steel bottom die (1) and is connected with the bottom surface of the steel bottom die (1) and the installation plane of the gutter (5) in a welding mode, and the distance between the brackets (3) is 2m-3 m.
6. The formwork support-free system construction method of the irregular concrete gutter as claimed in claim 1, wherein: in step S2, after the steel bottom die (1) is manufactured, measuring the actual processing length and the overall dimension, and establishing a physical integral installation model by combining a concrete gutter (5) BIM model; in step S3, during the installation process of the steel bottom mold (1), the total station is used to measure the plane position and height drop of the whole roof gutter (5), and the calibration is performed in combination with the entity integral installation model.
7. A concrete for use in claim 1, wherein: the concrete slump is 140 +/-20 mm, and the expansibility is less than or equal to 300 mm.
8. A concrete according to claim 7, wherein: the cement is P.O42.5, the sand is medium sand, the fly ash is II-grade fly ash, the slag is S95 blast furnace slag powder, the stone is 5-25 broken stone, and the admixture is polycarboxylic acid high-performance water reducing agent, wherein the cement is 280kg, the sand rate is 44%, the admixture is 2.4%, and the admixture content of the mineral admixture is 21%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011395414.0A CN112412015A (en) | 2020-12-03 | 2020-12-03 | Formwork-supporting-free system construction method for irregular concrete gutter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934672A (en) * | 2022-03-09 | 2022-08-23 | 五冶集团上海有限公司 | Novel formwork method for gutter in pitched roof house |
| EP4074920A1 (en) * | 2021-04-16 | 2022-10-19 | Schöck Bauteile GmbH | Method and system for producing a concrete component or construction section according to planning data and use |
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| GB841369A (en) * | 1957-07-26 | 1960-07-13 | George Kendrick Findlay | Improvements in or relating to eaves construction and guttering for buildings |
| CN101152977A (en) * | 2006-09-27 | 2008-04-02 | 盛天宝 | Profundity sterilization borehole face high-strength high-performance concrete |
| CN107489186A (en) * | 2017-08-25 | 2017-12-19 | 广东省水利水电第三工程局有限公司 | A kind of manufacture of shaped flow channel template and installation method |
| CN107700840A (en) * | 2017-09-30 | 2018-02-16 | 上海宝冶集团有限公司 | Formwork structure |
| CN110453853A (en) * | 2019-08-09 | 2019-11-15 | 福建捷思金属科技发展有限公司 | A kind of gutter fast mounting bracket |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB841369A (en) * | 1957-07-26 | 1960-07-13 | George Kendrick Findlay | Improvements in or relating to eaves construction and guttering for buildings |
| CN101152977A (en) * | 2006-09-27 | 2008-04-02 | 盛天宝 | Profundity sterilization borehole face high-strength high-performance concrete |
| CN107489186A (en) * | 2017-08-25 | 2017-12-19 | 广东省水利水电第三工程局有限公司 | A kind of manufacture of shaped flow channel template and installation method |
| CN107700840A (en) * | 2017-09-30 | 2018-02-16 | 上海宝冶集团有限公司 | Formwork structure |
| CN110453853A (en) * | 2019-08-09 | 2019-11-15 | 福建捷思金属科技发展有限公司 | A kind of gutter fast mounting bracket |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4074920A1 (en) * | 2021-04-16 | 2022-10-19 | Schöck Bauteile GmbH | Method and system for producing a concrete component or construction section according to planning data and use |
| CN114934672A (en) * | 2022-03-09 | 2022-08-23 | 五冶集团上海有限公司 | Novel formwork method for gutter in pitched roof house |
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