CN111764557A - Assembly type floor with decorative surface layer and construction method thereof - Google Patents
Assembly type floor with decorative surface layer and construction method thereof Download PDFInfo
- Publication number
- CN111764557A CN111764557A CN202010704319.8A CN202010704319A CN111764557A CN 111764557 A CN111764557 A CN 111764557A CN 202010704319 A CN202010704319 A CN 202010704319A CN 111764557 A CN111764557 A CN 111764557A
- Authority
- CN
- China
- Prior art keywords
- reinforced concrete
- prefabricated
- decorative surface
- surface layer
- rib beam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/18—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly cast between filling members
- E04B5/21—Cross-ribbed floors
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to the technical field of assembly type building application, and particularly discloses an assembly type floor with a decorative surface layer and a construction method thereof. The invention has the beneficial effects that: the dead weight is greatly reduced, and compared with the floor veneers paved with ceramic tiles, terrazzo and the like, the thickness of the decorative veneer layer is reduced from 50-60mm to within 10mm, so that the material is obviously saved; the ground decoration construction is simple, the field operation is less, the construction period is greatly shortened, and the comprehensive cost is greatly reduced.
Description
Technical Field
The invention belongs to the technical field of assembly type building application, and particularly relates to an assembly type floor system with a decorative surface layer and a construction method of the assembly type floor system.
Background
At present, the national call on the green low-carbon development of the building construction industry is made, the assembly type building is popularized vigorously, and the decoration integration of prefabricated parts is an important development direction; however, the decoration integration of the prefabricated components is mainly concentrated on the application of the wall body at present due to technical restriction, and the decoration integration technology of the assembled floor member is not related.
Therefore, based on the problems, the invention provides an assembled floor with a decorative surface layer and a construction method thereof.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an assembled floor with a decorative surface layer and a construction method thereof, the technical design is reasonable, the saving rate of a template reaches more than 85 percent, and meanwhile, the prefabricated parts are provided with decorative materials, so that the ground decoration process is simplified, the construction period is shortened, the self weight of the floor is reduced, the comprehensive cost is greatly reduced, and the like.
The technical scheme is as follows: the invention relates to an assembled floor system with decorative surface layers and a construction method thereof, which comprises a plurality of reinforced concrete prefabricated bottom plates, formwork frames respectively arranged at the bottom surfaces of the reinforced concrete prefabricated bottom plates, prefabricated rib beam bottom supporting plates respectively connected with adjacent reinforced concrete prefabricated bottom plates, prefabricated side wall plates respectively arranged between the adjacent prefabricated reinforced concrete bottom plates and prefabricated reinforced concrete top plates, cast-in-situ reinforced concrete rib beams respectively arranged on the reinforced concrete prefabricated bottom supporting plates and between the adjacent prefabricated side wall plates, reinforced concrete prefabricated top plates respectively connected with the upper end surfaces of the prefabricated concrete side wall plates and positioned at two sides of a preset rib beam, decorative surface layers with decorative surfaces respectively arranged on one surfaces of the reinforced concrete prefabricated top plates, and cast-in-situ decorative surface layers arranged at the tops of the preset rib beams and positioned between the decorative surface layers of the top plates; the construction method of the assembled floor with the decorative surface layer comprises the following steps of 1, designing a formwork according to a drawing, positioning and placing a bottom supporting plate of the prefabricated rib beam according to the design position of the drawing, placing a reinforced concrete prefabricated bottom plate, adjusting and compacting to form a flat and firm integral bottom formwork, wherein an overhanging reinforcing steel bar of the bottom plate 1 is inserted into the position of a preset rib beam; step 2, binding rib beam reinforcing steel bars at a preset rib beam position, placing a precast concrete side wall plate, placing a reinforced concrete precast top plate with a decorative surface layer, anchoring the outward extending reinforcing steel bars of the reinforced concrete precast top plate into the preset rib beam position, binding the reinforcing steel bars of the reinforced concrete precast top plate and the reinforced concrete precast bottom plate with the rib beam reinforcing steel bars to form a rib beam reinforcing steel bar cage, pouring concrete in the preset rib beam structure, and curing the concrete; step 3, removing the formwork after the cast-in-place reinforced concrete rib beam reaches the design strength through maintenance, then pouring facing mortar or a facing concrete layer at the top of the rib beam for the second time until the facing mortar or the facing concrete layer is flush with the facing layer of the reinforced concrete prefabricated top plate, and forming an integral decorative blank surface layer after maintenance; 4. and grinding, curing and polishing all the finish layers to form the integral finish terrace. The prefabricated assembled facing floor system comprises a reinforced concrete prefabricated bottom plate, a prefabricated rib beam bottom supporting plate, a prefabricated concrete side wall plate, a reinforced concrete prefabricated top plate with a decorative facing layer, a cast-in-place rib beam formed by primary pouring structural concrete and facing mortar or a facing concrete layer on the top of a secondary pouring rib beam, and the facing layer is polished, cured and polished to form the integral seamless high-grade floor with high strength, high hardness, high brightness, high wear resistance and high durability.
According to the technical scheme, the assembled floor system with the decorative surface layer and the construction method of the assembled floor system with the decorative surface layer further comprise rib beam reinforcing steel bars, wherein the rib beam reinforcing steel bars are respectively bound and connected with the overhanging reinforcing steel bars of the reinforced concrete prefabricated top plate and the overhanging reinforcing steel bars of the reinforced concrete prefabricated bottom plate to form a rib beam reinforcing steel bar cage together, and concrete is poured in a preset rib beam structure.
According to the technical scheme, the decorative surface layer of the reinforced concrete prefabricated roof plate can be colored concrete or mortar.
According to the technical scheme, the decorative surface layer of the reinforced concrete prefabricated roof plate can be provided with independent patterns or characters, or the decorative surface layer and the rib beam roof plate decorative surface layer poured for the second time form complete decorative patterns or characters.
According to the technical scheme, the colors of the finish coat on the top of the cast-in-place rib beam can be consistent with or inconsistent with the colors of the finish coats on the reinforced concrete prefabricated roof plate.
According to the technical scheme, the finish coat on the top of the cast-in-place rib beam is micro-expanded quick-hardening mortar or quick-hardening concrete.
According to the technical scheme, the structural concrete pouring height of the cast-in-place rib beam is parallel to the base layer of the reinforced concrete prefabricated top plate, and the height difference of at least 10mm is equal to that of the top layer with the decorative surface on one side of the reinforced concrete prefabricated top plate.
Compared with the prior art, the assembled floor with the decorative surface layer and the construction method thereof have the beneficial effects that: 1. the dead weight is greatly reduced, the thickness of the decorative surface layer is reduced to within 10mm from 50-60mm when the decorative surface layer is paved on floor surfaces such as ceramic tiles, terrazzo and the like, the load of the floor system is at least reduced by more than 150kg per square, and the material is obviously saved; 2. the ground decoration construction is simple, the field operation is less, and the construction period is greatly shortened; 3. the net height of the floor is increased by about 50 mm; 4. the prefabricated component and the cast-in-place ribbed beam are firmly combined, the integrity is good, and the stress performance is equivalent to that of a full cast-in-place reinforced concrete ribbed floor; 5. the engineering application can save a large amount of reinforcing steel bars, concrete and templates, the on-site concrete pouring amount is small, and the construction speed is high; 6. the assembly technology and the rapid hardening and ultra-early strength technology of the nano-silicon cement self-leveling high-strength micro-expansion material are utilized to manufacture an integral seamless high-grade terrace; 7. the comprehensive cost is greatly reduced.
Drawings
FIG. 1 is a schematic plan top view of an assembled building cover with a decorative face layer according to the present invention;
FIG. 2 is a schematic bottom plan view of an assembled building cover with a decorative layer according to the present invention;
FIG. 3 is a schematic cross-sectional view taken along line A-A of an assembled floor system of the present invention having a decorative face layer;
FIG. 4 is a schematic enlarged view of a section A-A of an assembled floor system with a decorative surface layer according to the present invention;
FIG. 5 is a schematic perspective view of an assembled prefabricated component of an assembled floor system with a decorative finish according to the present invention;
FIG. 6 is a schematic front view of the bottom pallet of the prefabricated rib beam of FIG. 4;
FIG. 7 is a schematic left side view of the bottom pallet of the prefabricated rib beam of FIG. 4;
figure 8 is a schematic top view of the precast rib beam bottom pallet of figure 4.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
Referring to FIGS. 1, 2, 3, 4, 5, 6, 7 and 8, the prefabricated building cover with a decorative surface layer and the construction method thereof comprises a plurality of reinforced concrete prefabricated base plates 1, formwork 9 respectively arranged at the bottom surfaces of the reinforced concrete prefabricated base plates 1, prefabricated rib bottom supporting plates 2 respectively connected with the adjacent reinforced concrete prefabricated base plates 1, prefabricated side wall plates 3 respectively arranged between the adjacent reinforced concrete prefabricated base plates 1 and the prefabricated top plates 4, cast-in-situ reinforced concrete rib girders 5 respectively arranged between the prefabricated base plates 1 and the prefabricated side wall plates 3 and the prefabricated top plates 4 and positioned on the prefabricated rib bottom supporting plates 2, reinforced concrete prefabricated top plates 4 respectively connected with the upper end surfaces of the prefabricated concrete side wall plates 3 and positioned at the two sides of the cast-in-situ rib girders 5, and a decorative surface layer 7 respectively arranged at one side of the reinforced concrete prefabricated top plates 4, and a cast-in-situ veneer layer 8 which is arranged on the top of the preset rib beam 5 and is positioned between the prefabricated top plate decorative surface layers 7; the construction method of the assembled floor of the decorative surface layer comprises the following steps of 1, designing a formwork 9 according to a drawing, positioning and placing a prefabricated rib beam bottom supporting plate 2 according to the design position of the drawing, placing a reinforced concrete prefabricated bottom plate 1, adjusting and compacting to form a flat and firm integral bottom formwork, wherein an overhanging steel bar of the bottom plate 1 is inserted into the position of a preset rib beam 5; step 2, binding rib beam reinforcing steel bars 6 at the preset rib beam 5, placing a precast concrete side wall plate 3, placing a reinforced concrete precast top plate 4 with a decorative surface layer 7, anchoring the overhanging reinforcing steel bars of the reinforced concrete precast top plate 4 into the preset rib beam 5, binding the overhanging reinforcing steel bars of the reinforced concrete precast top plate 4 and the overhanging reinforcing steel bars of the reinforced concrete precast bottom plate 1 with the rib beam reinforcing steel bars to form a rib beam reinforcing steel bar cage, pouring concrete in the structural layer of the rib beam 5, and curing the concrete; step 3, removing the die frame 9 after the cast-in-place reinforced concrete rib beam 5 reaches the design strength through maintenance, then secondarily pouring facing mortar or a facing concrete layer 8 at the top of the rib beam 5 until the facing mortar or the facing concrete layer is flush with the facing layer 7 of the reinforced concrete prefabricated top plate 4, forming an integral decorative blank surface layer after maintenance, and grinding, curing and polishing all the facing layers to form an integral facing terrace; the prefabricated assembled facing floor system comprises a reinforced concrete prefabricated bottom plate 1, a prefabricated rib beam bottom supporting plate 2, a prefabricated concrete side wall plate 3, a reinforced concrete prefabricated top plate 4 with a decorative surface layer 7, a rib beam 5 formed by primary pouring of structural concrete and secondary pouring of facing mortar or a facing concrete layer 8, wherein the facing layer is polished, cured and polished to form a high-strength, high-hardness, high-wear-resistance and high-durability floor, and the assembled perfect floor system integrating structure and decoration is manufactured.
Preferably, the assembled floor system with the decorative surface layer and the construction method thereof further comprise rib beam steel bars 6, wherein the rib beam steel bars 6 are respectively bound and fixedly connected with the steel bars of the reinforced concrete prefabricated top plate 4 and the reinforced concrete prefabricated bottom plate 1 to form a rib beam steel bar cage, and concrete is poured in the structure of the preset rib beam 5; and concrete is poured in the structure of the rib beam 5 and is flush with the base layer of the reinforced concrete prefabricated top plate 4, and the height difference of at least 10mm is formed between the concrete and the top of the reinforced concrete prefabricated top plate 4 with the decorative surface layer 7.
Further preferably, the decorative surface layer 7 of the reinforced concrete prefabricated top plate 4 can be colored concrete or mortar; the decorative surface layer 7 of the reinforced concrete prefabricated top plate 4 can be provided with independent patterns or characters, or the decorative surface layer and a secondary poured rib beam top plate decorative surface layer form complete decorative patterns or characters together; the color of the decorative surface layer on the top of the cast-in-situ rib beam 5 can be the same as or different from the color of the decorative surface layer 7 on the reinforced concrete prefabricated top plate 4.
The invention utilizes the combination of the high-strength reinforced concrete members prefabricated in factories and the nano-silicon cement self-leveling grindstone terrace technology, the prefabricated members are directly lapped on the die carrier, not only can be used as stressed members, but also can replace the effect of the die plate, the saving rate of the die plate reaches more than 85 percent, meanwhile, the prefabricated members are provided with the decorative materials, the ground decoration procedures are simplified, the construction period is reduced, the self weight of the floor is reduced, the material consumption of reinforced concrete, ceramic tiles and the like is saved, the using amount of the die plate is saved, and the comprehensive manufacturing cost is greatly reduced.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (7)
1. The utility model provides an assembled superstructure with decorative surface layer and construction method thereof which characterized in that: the prefabricated reinforced concrete roof plate comprises a plurality of reinforced concrete prefabricated bottom plates (1), formwork (9) which is arranged below the reinforced concrete prefabricated bottom plates (1) respectively and plays a supporting role, prefabricated rib beam bottom supporting plates (2) which are connected with adjacent reinforced concrete prefabricated bottom plates (1) respectively, prefabricated side wall plates (3) which are arranged between the reinforced concrete prefabricated bottom plates (1) and the prefabricated reinforced concrete roof plates (4) respectively and have a connecting role, cast-in-situ reinforced concrete rib beams (5) which are connected with the upper end surfaces of the prefabricated concrete side wall plates (3) respectively and are connected with the cast-in-situ rib beams (5) into a whole, cast-in-situ reinforced concrete rib beams (5) which are arranged between the prefabricated bottom plates (1), the prefabricated side wall plates (3) and the cast-in-situ rib beam bottom supporting plates (2) respectively and finishing layers (8) which are arranged on the upper parts of the cast-in-situ rib beams (5) and are arranged between the decorative surface layers (7);
the construction method of the assembled floor with the decorative surface layer comprises the following steps,
step 1, designing a formwork (9) according to a drawing, positioning and placing a prefabricated rib beam bottom supporting plate (2) according to the design position of the drawing, placing a reinforced concrete prefabricated bottom plate (1), adjusting and compacting to form a flat and firm integral bottom formwork, wherein an overhanging reinforcing steel bar of the bottom plate 1 is inserted into the position of a preset rib beam (5);
step 2, binding rib beam reinforcing steel bars (6) at the position of a preset rib beam (5), placing a precast concrete side wall plate (3), placing a reinforced concrete precast top plate (4) with a decorative surface layer (7), anchoring the overhanging reinforcing steel bars of the reinforced concrete precast top plate (4) into the position of the preset rib beam (5), binding the reinforcing steel bars of the reinforced concrete precast top plate (4) and the reinforced concrete precast bottom plate (1) to form a rib beam reinforcing steel bar cage together, pouring structural concrete in the preset rib beam (5), and curing the concrete;
step 3, removing the formwork (9) after the cast-in-place reinforced concrete predetermined rib beam (5) reaches the design strength through maintenance, and then casting facing mortar or a facing concrete layer (8) at the top position of the cast-in-place rib beam (5) for the second time to be flush with the facing layer (7) of the reinforced concrete prefabricated top plate (4); the method comprises the steps of forming an integral decorative blank surface layer after maintenance, grinding, curing and polishing all surface layers to form an integral decorative surface terrace, so far, forming a prefabricated assembly type decorative surface floor consisting of a reinforced concrete prefabricated bottom plate (1), a prefabricated rib beam bottom supporting plate (2), a prefabricated concrete side wall plate (3), a reinforced concrete prefabricated top plate (4) with a decorative surface layer (7), a reinforced concrete rib beam (5) formed by primary pouring structural concrete and secondary pouring decorative surface mortar or a decorative surface concrete layer (8), and grinding, curing and polishing the surface layers to form the high-grade decorative terrace with high strength, high hardness, high wear resistance and high brightness.
2. The fabricated floor with the decorative surface layer and the construction method thereof as claimed in claim 1, wherein: the assembled floor system with the decorative surface layer and the construction method thereof further comprise rib beam steel bars (6), wherein the rib beam steel bars (6) are respectively bundled and fixedly connected with the steel bars of the reinforced concrete prefabricated top plate (4) and the reinforced concrete prefabricated bottom plate (1) to form a rib beam steel bar cage, and concrete is poured in the structure of the preset rib beam (5).
3. The fabricated floor with the decorative surface layer and the construction method thereof as claimed in claim 1, wherein: the decorative surface layer (7) of the reinforced concrete prefabricated top plate (4) can be colored concrete or mortar.
4. The fabricated floor with the decorative surface layer and the construction method thereof as claimed in claim 1, wherein: the decorative surface layer (7) of the reinforced concrete prefabricated top plate (4) can be provided with independent patterns or characters, or the decorative surface layer and the secondary poured rib beam top plate decorative surface layer form complete decorative patterns or characters together.
5. The fabricated floor with the decorative surface layer and the construction method thereof as claimed in claim 1, wherein: the colors of the finish coat on the top of the cast-in-situ rib beam (5) can be consistent with or inconsistent with the colors of the decorative surface layers (7) of the reinforced concrete prefabricated top plate (4).
6. The fabricated floor with the decorative surface layer and the construction method thereof as claimed in claim 1, wherein: the cast-in-situ finish coat of the top plate of the cast-in-situ rib beam (5) is micro-expanded quick-hardening mortar or quick-hardening concrete.
7. The fabricated floor with the decorative surface layer and the construction method thereof as claimed in claim 2, wherein: the cast-in-place structure concrete of the cast-in-place rib beam (5) is flush with the base layer of the reinforced concrete prefabricated top plate (4), and has a height difference of at least 10mm with the top with the decorative surface layer (7) on one surface of the reinforced concrete prefabricated top plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704319.8A CN111764557A (en) | 2020-07-21 | 2020-07-21 | Assembly type floor with decorative surface layer and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010704319.8A CN111764557A (en) | 2020-07-21 | 2020-07-21 | Assembly type floor with decorative surface layer and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111764557A true CN111764557A (en) | 2020-10-13 |
Family
ID=72728593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010704319.8A Pending CN111764557A (en) | 2020-07-21 | 2020-07-21 | Assembly type floor with decorative surface layer and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111764557A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116607683A (en) * | 2023-05-23 | 2023-08-18 | 山东建筑大学 | Assembled prefabricated floor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1255233A2 (en) * | 2001-04-30 | 2002-11-06 | F.A.S. International S.p.A. | Refrigerated vending machine |
| CN1724825A (en) * | 2004-07-21 | 2006-01-25 | 李克翔 | Processing method of concrete honeycomb floor and its used structure box |
| CN103469952A (en) * | 2013-09-14 | 2013-12-25 | 吴方伯 | Reinforced concrete hollow floor and construction method |
| CN104005502A (en) * | 2014-05-04 | 2014-08-27 | 黄涛 | Prefabricated and light floor cover plate and industrialized building house floor plate structure |
| CN204238395U (en) * | 2014-11-06 | 2015-04-01 | 安徽湖滨建设集团有限公司 | A kind of prefabricated pair of thin plate cassette ceiling structure |
| CN106639089A (en) * | 2016-11-14 | 2017-05-10 | 邸中敏 | Novel assembled I-shaped prefabricated composite floor supporting plate and preparing method thereof |
| CN207332060U (en) * | 2017-09-13 | 2018-05-08 | 深圳市道同创新科技开发有限公司 | A kind of assembled hollow floor |
-
2020
- 2020-07-21 CN CN202010704319.8A patent/CN111764557A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1255233A2 (en) * | 2001-04-30 | 2002-11-06 | F.A.S. International S.p.A. | Refrigerated vending machine |
| CN1724825A (en) * | 2004-07-21 | 2006-01-25 | 李克翔 | Processing method of concrete honeycomb floor and its used structure box |
| CN103469952A (en) * | 2013-09-14 | 2013-12-25 | 吴方伯 | Reinforced concrete hollow floor and construction method |
| CN104005502A (en) * | 2014-05-04 | 2014-08-27 | 黄涛 | Prefabricated and light floor cover plate and industrialized building house floor plate structure |
| CN204238395U (en) * | 2014-11-06 | 2015-04-01 | 安徽湖滨建设集团有限公司 | A kind of prefabricated pair of thin plate cassette ceiling structure |
| CN106639089A (en) * | 2016-11-14 | 2017-05-10 | 邸中敏 | Novel assembled I-shaped prefabricated composite floor supporting plate and preparing method thereof |
| CN207332060U (en) * | 2017-09-13 | 2018-05-08 | 深圳市道同创新科技开发有限公司 | A kind of assembled hollow floor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116607683A (en) * | 2023-05-23 | 2023-08-18 | 山东建筑大学 | Assembled prefabricated floor |
| CN116607683B (en) * | 2023-05-23 | 2023-11-21 | 山东建筑大学 | Assembled prefabricated floor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102433959B (en) | Prefabricated reinforced concrete structure girder for fabricated building construction | |
| CN108166691A (en) | A kind of precast prestressed concrete beam formula stair and making construction method | |
| CN103031952A (en) | Manufacturing method of fabricated support-free prefabricated ribbed light superposed floor slab | |
| JPH10504360A (en) | Multi-cell wall structure | |
| CN113026965A (en) | Prefabricated beam and support-free prefabricated plate connecting joint and construction method | |
| CN1651674A (en) | Wall body heat insulating construction method | |
| CN111958815A (en) | Separated prefabricated prestressed concrete slab stair and production process thereof | |
| CN209556190U (en) | A kind of prefabricated composite floor | |
| CN103572874A (en) | Method for constructing reinforced concrete composite floor slab of steel frame house | |
| CN111764557A (en) | Assembly type floor with decorative surface layer and construction method thereof | |
| CN204876055U (en) | Building foundation | |
| CN207959751U (en) | A kind of precast prestressed concrete beam formula stair | |
| CN212358789U (en) | Prefabricated composite bottom plate concrete superimposed sheet connection structure based on tongue-and-groove form | |
| CN210657852U (en) | Prefabricated road deck and temporary road structure | |
| CN106836592B (en) | Partially prefabricated assembled rear-superposed hollow floor | |
| CN213174394U (en) | Assembled building combined member with decorative surface layer | |
| CN113027021A (en) | Support-free prefabricated floor slab with bracket | |
| CN202248526U (en) | Precast reinforced concrete structural beam for assembled house building | |
| CN217001128U (en) | Prefabricated prestressing force assembled tank | |
| CN105155855A (en) | Arrangement method of short-span negative-moment reinforcing steel bars of assembled core post-grouted concrete plates | |
| CN216041282U (en) | Cast-in-place concrete slope cushion plate for bearing platform | |
| CN212498282U (en) | Separated prefabricated prestressed concrete slab type stair | |
| CN208168084U (en) | A kind of plate end and plate side do not go out the bidirectional laminated slab bottom plate of muscle | |
| CN110258984A (en) | A kind of production method of steel-concrete combined staircase | |
| CN111663695A (en) | Assembly type template-free box-type floor system and construction process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201013 |