CN110374321B - Assembled multi-ribbed beam floor system combined template and construction method - Google Patents
Assembled multi-ribbed beam floor system combined template and construction method Download PDFInfo
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- CN110374321B CN110374321B CN201910665597.4A CN201910665597A CN110374321B CN 110374321 B CN110374321 B CN 110374321B CN 201910665597 A CN201910665597 A CN 201910665597A CN 110374321 B CN110374321 B CN 110374321B
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
- E04G11/40—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for coffered or ribbed ceilings
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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
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Mechanical Engineering (AREA)
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The application relates to an assembled multi-ribbed beam floor system combined template, which comprises a support frame, ribbed beam bottom templates and a plastic turnover template, wherein four ribbed beam bottom templates are respectively arranged at four corners of the support frame, adjacent ribbed beam bottom templates are symmetrically arranged, the plastic turnover template comprises a standard template and a movable template, the standard template is embedded in a grid caulking groove of the ribbed beam bottom templates, and two ends of the movable template are respectively and fixedly arranged in half frame grooves of half grid bodies of the adjacent symmetrically arranged ribbed beam bottom templates to form a complete multi-ribbed beam floor system combined template. The application has simple structure, can be assembled on site, can be reused, is convenient to assemble, disassemble and fix, and can be recycled in the construction of the multi-ribbed beam floor system.
Description
Technical Field
The application belongs to the technical field of building templates, relates to a multi-ribbed beam template technology, and in particular relates to an assembled multi-ribbed beam floor system combined template and a construction method.
Background
The plastic shuttering is used as a new shuttering system for building engineering, and the dense rib beam building roof system formed with the plastic shuttering has excellent economic benefit, and has the advantages of simple construction, short period, low cost, novel appearance, low noise, etc. At present, the development of the formwork mainly goes through two generations, the primary formwork adopts a disposable formwork, and the formwork is easy to fall off, return alkali, break, have nonstandard wall thickness and easily leak slurry during construction; the second-generation formwork is fixed by nails, the disassembly procedure is complex, the secondary construction utilization rate is low, the construction cost is high, and the period is long; in addition, whether the first generation formwork or the second generation formwork is usually laid in full or in strips, namely, a bottom die is laid under the formworks integrally or at intervals, and gaps among the formworks are filled with fillers such as bamboo plywood, wood strips, extruded battens and the like before pouring due to the lack of connection relation among the formworks, so that horizontal displacement of the formworks under the action of concrete lateral pressure is prevented, the construction process of the formworks is complicated, and the removal of the formworks after pouring molding is complicated.
The following patent documents related to the present application are found by searching, and specific disclosures are as follows:
1. the utility model provides a dense rib roof beam superstructure combination template (CN 109403624A), includes the tie-beam, detachable connects the connecting block at the both short side ends of tie-beam to and detachable connects the mould shell at the both long side ends of tie-beam, and a plurality of tie-beams are connected circumference with the connecting block and are extended into netted grid, the mould shell sets up in the grid of netted grid with the detachable connection of tie-beam long side end, its size, size and grid adaptation.
2. The plastic mould box combined device (CN 207919848U) for the top plate of the underground garage comprises a cast-in-situ layer and a plurality of core mould boxes positioned on the cast-in-situ layer, wherein vertical longitudinal ribs and horizontal transverse ribs are arranged on the cast-in-situ layer, the longitudinal ribs penetrate through the cast-in-situ layer to be anchored on a scaffold below through iron wires, the transverse ribs are respectively connected with the corresponding longitudinal ribs through fixed iron wires, the longitudinal ribs and the transverse ribs penetrate through the core mould boxes respectively, and barrier reinforcing steel bars are arranged between the crossing points of the longitudinal ribs and the transverse ribs and the core mould boxes.
3. A ribbed beam-free mould box sandwich reinforced concrete floor system (CN 104818791B), wherein the concrete floor comprises a double-layer reinforcement cage formed by an upper layer reinforcement mesh and a lower layer reinforcement mesh and a light heat-insulating plate mould box; the light heat-insulating board die box is formed by cutting four right angles for a square die box, the light heat-insulating board die box is centrosymmetric, and a hole is formed in the center point of the light heat-insulating board die box.
4. The novel template device (CN 206158164U) for pouring the floor concrete roof comprises a main template, and is characterized in that the main template is rectangular or square, the main template is respectively connected with a left vertical plate, a front vertical plate, a right vertical plate and a rear vertical plate, the front vertical plate is provided with a front mosaic opening, the front mosaic opening is connected with a front rectangular coaming, the front rectangular coaming is connected with a front baffle, and the front rectangular coaming and the front baffle are both connected with a front magnetic plate; the rear vertical plate is provided with a rear inlaid opening, the rear inlaid opening is connected with a rear rectangular coaming, the rear rectangular coaming is connected with a rear baffle plate, and the rear rectangular coaming and the rear baffle plate are both connected with a rear magnetic plate; the left vertical plate is provided with a left embedded opening, the left embedded opening is connected with a left rectangular coaming, the left rectangular coaming is connected with a left baffle, and the left rectangular coaming and the left baffle are both connected with a left magnetic plate; the right vertical plate is provided with a right embedded opening, the right embedded opening is connected with a right rectangular coaming, the right rectangular coaming is connected with a right baffle, and the right rectangular coaming and the right baffle are both connected with a right magnetic plate; the main template is connected with the additional template.
By comparing technical characteristics, the technical structures of the disclosed patent documents are different from those of the application, and the creativity and novelty of the application of the application are not affected.
Disclosure of Invention
The application aims to overcome the defects of the prior art, and provides the assembled multi-ribbed beam floor system combined template which has the advantages of simple structure, capability of being assembled on site, recycling and reducing the construction cost, can fully utilize the utilization rate of a limited formwork, fine adjustment of column spacing through a movable formwork, is convenient to assemble and disassemble and fix, and can be recycled in the construction of the multi-ribbed beam floor system.
The application solves the technical problems by adopting the following technical scheme:
the construction method of the assembled multi-ribbed beam floor system combined template comprises a support frame, ribbed beam bottom templates and plastic turnover templates, wherein four ribbed beam bottom templates are respectively installed at four corners of the support frame, the adjacent ribbed beam bottom templates are symmetrically arranged, the plastic turnover templates comprise standard templates and movable templates, the standard templates are embedded in grid caulking grooves of the ribbed beam bottom templates, and two ends of the movable templates are respectively and fixedly installed in half frame grooves of half grid bodies of the adjacent symmetrically arranged ribbed beam bottom templates to form a complete multi-ribbed beam floor system combined template; the rib beam bottom templates comprise grid-shaped frames, wherein each grid-shaped frame is formed by splicing and fixedly installing a plurality of grids, caulking grooves are uniformly formed in each grid, standard templates are embedded in the caulking grooves, a plurality of half grid bodies are respectively installed on two sides of one vertical angle of each grid-shaped frame, half frame grooves are uniformly formed in the half grid bodies, adjacent rib beam bottom templates are symmetrically arranged, the half frame grooves of the half grid bodies of each rib beam bottom template are symmetrically surrounded to form an adjustable frame groove, movable templates are embedded in the whole frame grooves, lap joint assemblies are respectively and fixedly installed on two sides of the other obliquely symmetrical vertical angle of each grid-shaped frame, and positioning plug-in blocks are respectively installed on the lower surface of each lap joint assembly; the support frame comprises a lap joint top frame, a floor support and a quick-release connector, wherein the lap joint top frame is fixedly arranged on the floor support through the quick-release connector, the lap joint top frame comprises a rectangular splicing frame and connecting beams, the connecting beams are fixedly arranged in the rectangular splicing frame at equal intervals, the rectangular splicing frame is formed by encircling four support steel main beams end to end, the upper surface of the support steel main beam of the lap joint top frame is provided with a positioning slot, and a limiting clamping slot is integrally formed in the inner slot wall of the positioning slot corresponding to the splicing position of the rib beam bottom template grid; the quick-release connector sequentially comprises a first jackscrew bracket, jackscrews, a second jackscrew bracket and customized steel from bottom to top, wherein the lower end of the first jackscrew bracket is connected with the floor stand, the upper end of the first jackscrew bracket is connected with the jackscrews, and the upper end of the jackscrews sequentially passes through the second jackscrew bracket and the customized steel and then contacts and jacks with a supporting steel girder of a lap joint jackframe arranged in the customized steel; the customized steel comprises a steel base plate and steel wing plates, wherein the steel base plate and the steel wing plates are integrally formed, the steel base plate is horizontally arranged, and the steel wing plates are positioned at the upper parts of two ends of the steel base plate and incline outwards relative to the steel base plate; the length of the short side of the half grille body is 1/4 of the length of the grille side of the grille-shaped frame; the grid of the rib beam bottom template is square, and the corresponding edge at the bottom of the standard mould shell is square;
the construction method comprises the following steps:
(1) Before installation, calculating and selecting a required combined template through the column spacing size of the construction drawing;
(2) During installation, the floor stand is built in a hall, the quick-release connector is installed on the binding support column of the floor stand, then the lap joint top frame is hung on the floor stand, and the lap joint top frame is fixed through the quick-release connector, so that the installation of the support frame is completed;
(3) Symmetrically positioning and mounting rib beam bottom templates on four corners of a support frame respectively in a hoisting mode;
(4) Standard shuttering is installed in the grille embedding grooves of the rib beam bottom shuttering, and movable shuttering is installed in the whole frame groove formed by the symmetrical enclosing of the half frame grooves of the half grille body of the symmetrically arranged rib beam bottom shuttering.
The application has the advantages and positive effects that:
the application has simple structure and convenient transportation, can be assembled on site, can be recycled, and can lead the rib beam bottom template and the lap joint top frame to be matched and lapped, simplify the disassembly and assembly construction procedures of fully paved or strip paved wood strips, simultaneously reduce the construction cost, and fully paved or strip paved wood strips before the original formwork is installed, and the space between the binding posts of the floor support is smaller because the load force of the wood strips is poorer, and the rib beam bottom template is a steel product and the load force of the rib beam bottom template is far greater than the load of the wood strips, so the space between the binding posts of the floor support can be increased, the bottom support construction space is increased, the labor force of bundling is reduced, and the construction efficiency is greatly improved.
Drawings
FIG. 1 is an exploded view of the structure of the present application;
FIG. 2 is a schematic view of a bottom die plate structure of a rib beam according to the present application;
FIG. 3 is a schematic view of the structure of the support frame of the present application;
FIG. 4 is a schematic view of the quick connector structure of the present application;
FIG. 5 is a schematic view showing the mounting state of the support frame according to the present application;
FIG. 6 is a schematic view of a support frame of the present application with a ribbed beam bottom pattern plate mounted thereon;
fig. 7 is a schematic view of the assembled state of the present application.
Detailed Description
The application will now be described in further detail by way of specific examples, which are given by way of illustration only and not by way of limitation, with reference to the accompanying drawings.
The utility model provides an assembled dense rib beam superstructure combination template, includes support frame 3, rib beam die plate 2 and plastics turnover mould shell, four rib beam die plates are installed respectively to the four corners on the support frame, adjacent rib beam die plate symmetry sets up, plastics turnover mould shell includes standard mould shell 1 and movable mould shell 1-1, standard mould shell inlays the dress in the grid 2-4 caulking groove 2-5 of rib beam die plate, movable mould shell both ends are fixed mounting respectively in the half frame groove 2-3 of the half grid body 2-1 of adjacent symmetrical rib beam die plate to form a complete dense rib beam combination template.
The rib beam bottom template comprises a grid-shaped frame 2-6, the grid-shaped frame is a square frame, the square frame is formed by fixedly installing a plurality of grids, caulking grooves 2-5 are uniformly formed in each grid 2-4, standard templates are embedded in the caulking grooves, the standard templates are specification templates produced in a large scale, the specification templates matched with the standard templates can be fully and periodically utilized by utilizing the device template, and the insufficient utilization of the specification templates is avoided; a plurality of half grid bodies 2-1 are respectively arranged on two sides of a vertical angle of the grid-shaped frame, half frame grooves 2-3 are uniformly formed on the half grid bodies, the adjacent rib beam bottom templates are symmetrically arranged, so that the half frame grooves of the half grid bodies of the symmetrically arranged rib beam bottom templates are symmetrically enclosed into an adjustable frame groove 2-2 for embedding the movable mould shell, the size of the whole frame groove (the distance between the adjacent rib beam bottom templates) can be changed due to the difference of actual column distances, and the embedded movable shuttering can also be prefabricated due to the size of the whole frame groove, so that the difficulty of quick positioning and mounting of non-standard column distances is solved, the two sides of one vertical angle of the grid-shaped frame are respectively provided with a lap joint assembly 2-7, and a positioning plug-in block 2-8 is arranged on the lower surface of the lap joint assembly.
The support frame comprises a lap joint top frame 3-4, a floor support frame 3-6 and a quick-release connector 3-2, wherein the lap joint top frame is fixedly arranged on the floor support frame through the quick-release connector, the floor support frame is an existing common binding type connected full scaffold, the lap joint top frame comprises a rectangular splicing frame and a plurality of connecting beams 3-1, connecting beams are fixedly arranged at intervals in the rectangular splicing frame at uniform intervals, the rectangular splicing frame is formed by encircling four support steel main beams end to end, positioning slots 3-5 matched with positioning plug-in blocks of a rib beam bottom template are respectively formed in the upper surface of the support steel main beam of the lap joint top frame, and limiting clamping grooves 3-3 are integrally formed in the inner groove walls of the positioning slots corresponding to the splicing positions of the rib beam bottom template for clamping the rib beam bottom template.
The quick-release joint sequentially comprises a first jackscrew bracket 9, jackscrews 8, a second jackscrew bracket 7 and custom-made steel from bottom to top, wherein the lower end of the first jackscrew bracket is connected with the floor stand, the upper end of the first jackscrew bracket is connected with the jackscrews, the upper end of the jackscrews sequentially passes through the second jackscrew bracket and the custom-made steel and then contacts and jacks with a supporting steel girder of a lap joint jackframe arranged in the custom-made steel, and the first jackscrew bracket is used for adjusting the ground height of the quick-release joint. The second jackscrew bracket upwards holds the support steel girder and the connecting girder of the lap joint jackframe arranged in the customized steel through the customized steel, and the ground height of the customized steel and the lap joint jackframe is adjusted through adjusting the height of the second jackscrew bracket on jackscrews.
The customized steel comprises a steel bottom plate 5 and a steel wing plate 6, wherein the steel bottom plate and the steel wing plate are integrally formed, the steel bottom plate is horizontally installed, and the steel wing plate is located at the upper parts of two ends of the steel bottom plate and is inclined outwards relative to the steel bottom plate, so that the steel bottom plate is convenient to detach.
The support frame is arranged in a unit construction space 4 surrounded by four columns and a main beam.
In the concrete implementation of the application, as the rib beam bottom template and the lap joint top frame are matched and lapped, the disassembly and assembly construction procedures of fully-paved or strip-paved wood strips are simplified, meanwhile, the construction cost is reduced, the fully-paved or strip-paved wood strips are required before the original formwork is installed, and the space between the binding posts of the floor support is smaller because the load force of the wood strips is poorer, but the rib beam bottom template is a steel product, and the load force of the rib beam bottom template is far greater than the load of the wood strips, so that the space between the binding posts of the floor support can be increased, the bottom support construction space is increased, the binding labor force is reduced, and the construction efficiency is greatly improved. However, as the rib beam bottom template is a steel product and the self weight is larger than that of the battens, the diameter of the binding support is properly enlarged to meet the requirement of enlarging the distance and influence the capacity of the floor stand to integrally support the load, and the diameter of the binding support can be 1.2 times that of the existing binding support.
In the concrete implementation of the application, the large-span building column spacing is in a certain range, which standard shuttering and movable shuttering are suitable for selection is calculated according to the column spacing before the dense rib floor is constructed, and the caulking groove specification in each grid of the rib beam bottom shuttering is the specification of the standard shuttering, so that the rib beam bottom shuttering and the lap top frame are matched and lapped, the use size of the shuttering can be calculated rapidly, the mass production and storage of the standard shuttering are convenient, and the accurate production of the movable shuttering is convenient.
In the implementation of the application, the grids in the grid frame templates are square, and the edges at the bottoms of the corresponding standard templates are enclosed to form a square.
In the implementation of the application, the length of the short side of the half grille body is 1/4 of the length of the grille edge of the grille-shaped frame, the distance between the half grille bodies of the adjacent symmetrically arranged rib beam bottom templates is adjustable, and the adjustable range is more than or equal to 0 m and less than or equal to the length of the short side of the half grille body.
The application process of the application comprises the following steps:
1. before installation, calculating and selecting a required combined template through the column spacing size of the construction drawing;
2. during installation, a floor stand is built according to the column spacing filling the hall, a quick-release joint is installed on a binding post of the floor stand, then the lap joint top frame is hung on the floor stand, and the lap joint top frame is fixed through the quick-release joint, so that the installation of the support frame is completed;
3. symmetrically positioning and mounting rib beam bottom templates on four corners of a support frame respectively in a hoisting mode;
4. standard shuttering is installed in the grille embedding grooves of the rib beam bottom shuttering, and movable shuttering is installed in the whole frame groove formed by the symmetrical enclosing of the half frame grooves of the half grille body of the symmetrically arranged rib beam bottom shuttering.
Although the embodiments of the present application and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the application and the appended claims, and therefore the scope of the application is not limited to the embodiments and the disclosure of the drawings.
Claims (1)
1. A construction method of an assembled multi-ribbed beam floor system combined template is characterized by comprising the following steps: the assembled multi-ribbed beam floor system combined formwork comprises a support frame, ribbed beam bottom formworks and plastic turnover formworks, wherein four ribbed beam bottom formworks are respectively installed at four corners of the support frame, adjacent ribbed beam bottom formworks are symmetrically arranged, the plastic turnover formworks comprise a standard formwork and a movable formwork, the standard formwork is embedded in grid caulking grooves of the ribbed beam bottom formworks, and two ends of the movable formwork are respectively and fixedly installed in half frame grooves of half grid bodies of the adjacent symmetrically arranged ribbed beam bottom formworks to form a complete multi-ribbed beam floor system combined formwork; the rib beam bottom templates comprise grid-shaped frames, wherein each grid-shaped frame is formed by splicing and fixedly installing a plurality of grids, caulking grooves are uniformly formed in each grid, standard templates are embedded in the caulking grooves, a plurality of half grid bodies are respectively installed on two sides of one vertical angle of each grid-shaped frame, half frame grooves are uniformly formed in the half grid bodies, adjacent rib beam bottom templates are symmetrically arranged, the half frame grooves of the half grid bodies of each rib beam bottom template are symmetrically surrounded to form an adjustable frame groove, movable templates are embedded in the whole frame grooves, lap joint assemblies are respectively and fixedly installed on two sides of the other obliquely symmetrical vertical angle of each grid-shaped frame, and positioning plug-in blocks are respectively installed on the lower surface of each lap joint assembly; the support frame comprises a lap joint top frame, a floor support and a quick-release connector, wherein the lap joint top frame is fixedly arranged on the floor support through the quick-release connector, the lap joint top frame comprises a rectangular splicing frame and connecting beams, the connecting beams are fixedly arranged in the rectangular splicing frame at equal intervals, the rectangular splicing frame is formed by encircling four support steel main beams end to end, the upper surface of the support steel main beam of the lap joint top frame is provided with a positioning slot, and a limiting clamping slot is integrally formed in the inner slot wall of the positioning slot corresponding to the splicing position of the rib beam bottom template grid; the quick-release connector sequentially comprises a first jackscrew bracket, jackscrews, a second jackscrew bracket and customized steel from bottom to top, wherein the lower end of the first jackscrew bracket is connected with the floor stand, the upper end of the first jackscrew bracket is connected with the jackscrews, and the upper end of the jackscrews sequentially passes through the second jackscrew bracket and the customized steel and then contacts and jacks with a supporting steel girder of a lap joint jackframe arranged in the customized steel; the customized steel comprises a steel base plate and steel wing plates, wherein the steel base plate and the steel wing plates are integrally formed, the steel base plate is horizontally arranged, and the steel wing plates are positioned at the upper parts of two ends of the steel base plate and incline outwards relative to the steel base plate; the length of the short side of the half grille body is 1/4 of the length of the grille side of the grille-shaped frame; the grid of the rib beam bottom template is square, and the corresponding edge at the bottom of the standard mould shell is square;
the construction method comprises the following steps:
(1) Before installation, calculating and selecting a required combined template through the column spacing size of the construction drawing;
(2) During installation, the floor stand is built in a hall, the quick-release connector is installed on the binding support column of the floor stand, then the lap joint top frame is hung on the floor stand, and the lap joint top frame is fixed through the quick-release connector, so that the installation of the support frame is completed;
(3) Symmetrically positioning and mounting rib beam bottom templates on four corners of a support frame respectively in a hoisting mode;
(4) Standard shuttering is installed in the grille embedding grooves of the rib beam bottom shuttering, and movable shuttering is installed in the whole frame groove formed by the symmetrical enclosing of the half frame grooves of the half grille body of the symmetrically arranged rib beam bottom shuttering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910665597.4A CN110374321B (en) | 2019-07-23 | 2019-07-23 | Assembled multi-ribbed beam floor system combined template and construction method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910665597.4A CN110374321B (en) | 2019-07-23 | 2019-07-23 | Assembled multi-ribbed beam floor system combined template and construction method |
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| CN110374321A CN110374321A (en) | 2019-10-25 |
| CN110374321B true CN110374321B (en) | 2023-08-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779169B (en) * | 2020-06-24 | 2022-01-18 | 天津洪晟基业建材有限公司 | Support-free assembled formwork device for ribbed floor and construction method |
| CN111779170B (en) * | 2020-06-24 | 2021-12-10 | 天津洪晟基业建材有限公司 | Dense rib support-free unit template device and installation method |
| CN111691593B (en) * | 2020-06-24 | 2022-01-18 | 天津洪晟基业建材有限公司 | Dense rib support-free system and construction method thereof |
| CN111706073B (en) * | 2020-06-29 | 2022-02-22 | 天津洪晟基业建材有限公司 | Unidirectional ribbed formwork and installation method |
| CN112160481A (en) * | 2020-09-22 | 2021-01-01 | 湖南弘久建材科技有限公司 | Assembly type combined mould box multi-ribbed hollow floor structure and construction method thereof |
| CN112726921A (en) * | 2020-12-27 | 2021-04-30 | 江西美丽坚建材科技有限公司 | Mold box arrangement method for eliminating small special-shaped molds of dense-rib floor |
| CN118547571A (en) * | 2024-07-24 | 2024-08-27 | 湖南省交通规划勘察设计院有限公司 | Bridge deck widening structure suitable for existing bridge structure and construction method |
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| EP0210116A1 (en) * | 1985-06-18 | 1987-01-28 | Paul Borg | Prefabricated-construction system, element and mould for carrying it out |
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| CN110374321A (en) | 2019-10-25 |
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