CN109057119A - A kind of assembly concrete laminated floor slab connection structure - Google Patents

A kind of assembly concrete laminated floor slab connection structure Download PDF

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Publication number
CN109057119A
CN109057119A CN201811045747.3A CN201811045747A CN109057119A CN 109057119 A CN109057119 A CN 109057119A CN 201811045747 A CN201811045747 A CN 201811045747A CN 109057119 A CN109057119 A CN 109057119A
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CN
China
Prior art keywords
reinforcing bar
superimposed sheet
floor slab
groove
laminated floor
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Granted
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CN201811045747.3A
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Chinese (zh)
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CN109057119B (en
Inventor
卢旦
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Shanghai Fangke Architectural Design Co ltd
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East China Architectural Design and Research Institute Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

The present invention provides a kind of assembly concrete laminated floor slab connection structures, including top in-situ layer and lower part prefabricated board, the lower part prefabricated board is made of muti-piece superimposed sheet, multiple grooves are arranged in the surrounding of the superimposed sheet, the multiple superimposed sheet groove in combination is aligned, and connection reinforcing bar is placed in the groove.The present invention is based on the superimposed sheet for not going out muscle.Do not go out muscle and avoid the collision between reinforcing bar, to improve the standardization of design, significantly reduces the workload for designing figure, while decreasing the generation of mistake.Floor is assembled using close spell shape formula in scene, eliminates post-cast strip, so that construction more convenient and quicker.Connection reinforcing bar is put into groove, so that the effective height for connecting reinforcing bar is increased compared to Normal practice, so as to accordingly reduce in-situ layer thickness, saves project cost.

Description

A kind of assembly concrete laminated floor slab connection structure
Technical field
The present invention relates to assembly concrete building, in particular to a kind of assembly concrete laminated floor slab connection structure.
Background technique
It is well known that superposed floor is a kind of mode of construction common in current prefabricated concrete structure at present.It is this For floor system by prefabrication steel bar girder reinforced concrete slab as template, scene binds steel again on laminated floor slab Muscle, casting concrete.
The process that this construction process saves live formwork and part assembling reinforcement, improves construction efficiency, saves Manpower is the embodiment of building industrialization production method.However, floor can not in a room due to producing, transporting etc. Integral prefabricated, lower part prefabricated board is often split into muti-piece, in order to make lower part prefabricated board that can bear structure after construction The effect of stress, it is necessary that the intraplate discontinuous reinforcing bar energy effective force of piecemeal.
Therefore it needs one kind that can improve connection reinforcing bar effective height, reinforces bonding pad strength and stiffness, and can conveniently set The concrete building board connecting structure of meter and construction.
Summary of the invention
The purpose of the present invention is to provide a kind of assembly concrete laminated floor slab connection structures, to solve in the prior art The problems such as existing construction trouble, waste of material.
In order to solve the above technical problems, the present invention provides a kind of assembly concrete laminated floor slab connection structure, including upper Portion's in-situ layer and lower part prefabricated board, the lower part prefabricated board include the superimposed sheet of muti-piece splicing;The superimposed sheet is itself and other Multiple first grooves are offered on the side of superimposed sheet splicing, the first groove one is a pair of at the splicing edge on two adjacent superimposed sheets Should and be mutually matched to form the second groove, second inside grooves are placed with connection reinforcing bar, the top in-situ layer pour in On the lower part prefabricated board and the connection reinforcing bar.
Optionally, the second groove upper vertical is placed with elongated reinforcing bar in the second groove extending direction, described elongated The length of reinforcing bar is equal to the length on the side where the stitching portion of two adjacent superimposed sheets.
Optionally, the connection reinforcing bar is linear, and it is recessed that the both ends of the connection reinforcing bar are located at composition described second In two the first grooves of slot.
Optionally, the connection reinforcing bar is using annular bending reinforcing steel bar, and the annular bending reinforcing steel bar is by a rectangular-ambulatory-plane reinforcing bar Formed with rectilinear reinforcement, the rectangular-ambulatory-plane reinforcing bar include opposite first while and when second, opposite third side and the 4th Side, the both ends of the rectilinear reinforcement be separately fixed at the first of the rectangular-ambulatory-plane reinforcing bar while and midpoint when second, it is described The first of rectangular-ambulatory-plane reinforcing bar while and with rectilinear reinforcement be that the axial same direction is bent to form a bulge-structure when second, it is described The third of rectangular-ambulatory-plane reinforcing bar while and the 4th while be respectively arranged in two adjacent the second grooves.
Optional amount, there is embedded bar in the superimposed sheet, and the embedded bar includes intersecting vertically to be distributed in superimposed sheet The internal transverse steel along the first groove extending direction and the longitudinal reinforcement perpendicular to the first groove extending direction, The transverse steel is a little being folded upward at and is being exposed close to the stitching portion overlapping plate surface and be located at two adjacent institutes It states between the first groove.
Optionally, first groove is rectangular recess, and the rectangular recess is made by the way of mold, mold is pressed It is pressed into the concrete surface of ot-yet-hardened, takes out mold to form first groove after concrete curing solidification.
Optionally, the superimposed sheet is the smooth superimposed sheet for not going out muscle of surrounding.
Optionally, the depth of first groove is greater than the diameter of the connection reinforcing bar.
Optionally, the length of the connection reinforcing bar be less than or equal to two first grooves along extending direction length it With.
Optionally, the superimposed sheet quantity is muti-piece, is connected between muti-piece superimposed sheet by close spelling mode.
The present invention provides a kind of assembly concrete laminated floor slab connection structure, including top in-situ layer and lower part it is prefabricated Plate, the lower part prefabricated board are made of muti-piece superimposed sheet, and groove is arranged in the surrounding of the superimposed sheet, place connection in the groove Reinforcing bar.
The present invention is based on the superimposed sheet for not going out muscle.Do not go out muscle and avoid the collision between reinforcing bar, is set to improve The standardization of meter significantly reduces the workload for designing figure, while decreasing the generation of mistake.Close muscle of can not spelling can save Live supporting module is gone, directly using superimposed sheet as template.Secondly, unified rectangle is arranged in the surrounding of superimposed sheet by the present invention Groove.Rectangular recess is made by the way of " print ", i.e., after factory's casting concrete, mold compresses are entered the mixed of ot-yet-hardened Solidifying soil surface, takes out mold after concrete curing solidification, rectangular recess self-assembling formation.Be arranged rectangular recess purpose be for Connection reinforcing bar is placed at the scene, and the connection reinforcing bar that groove reduces puts depth, thus company when improving floor Force Calculation The effective height of reinforcing bar is connect, the thickness for increasing in-situ layer is thus no longer needed to, and plays and improves connecting portion strength and stiffness Effect.Elongated reinforcing bar is placed along the direction perpendicular to the connection reinforcing bar above groove, elongated reinforcing bar pours in section after strengthening Connect the globality of reinforcing bar.
Detailed description of the invention
Fig. 1 is the schematic diagram for the monolithic superimposed sheet that the embodiment of the present invention one provides;
Fig. 2 is the schematic diagram that two pieces of superimposed sheets provided in an embodiment of the present invention are stitched together;
Fig. 3 is the annular bending connection reinforcing bar schematic diagram placed in the groove of alignment;
Fig. 4 is the embedded bar schematic diagram being distributed in prefabricated board;
Fig. 5 is the schematic top plan view for setting up the prefabricated board of annular bending connection reinforcing bar;
Fig. 6 is that elongated reinforcing bar schematic diagram is placed on groove along vertical piece direction;
Fig. 7 is the organigram of edge joint position before cast in situs;
Fig. 8 is the schematic cross-section after the completion of pouring;
Fig. 9 is a kind of schematic diagram for assembly concrete laminated floor slab connection structure that the present embodiment one provides;
Figure 10 is the schematic diagram for another assembly concrete laminated floor slab connection structure that the present embodiment one provides;
Figure 11 is a kind of schematic top plan view for assembly concrete laminated floor slab connection structure that embodiment two provides;
Figure 12 is that the section of another assembly concrete laminated floor slab connection structure provided by Embodiment 2 of the present invention shows It is intended to;
The lower part 1- prefabricated board, 10- superimposed sheet, the first groove of 11-, the second groove of 110-, 100- embedded bar, 20- connection Reinforcing bar, the back-shaped reinforcing bar of 201-, 202- rectilinear reinforcement, the elongated reinforcing bar of 30-, 40- in-situ layer.
Specific embodiment
Concrete building board connecting structure proposed by the present invention is made below in conjunction with the drawings and specific embodiments further detailed Explanation.According to following explanation and claims, advantages and features of the invention will be become apparent from.It should be noted that attached drawing is adopted With very simplified form and using non-accurate ratio, only to facilitate, lucidly aid in illustrating the embodiment of the present invention Purpose.
Embodiment one
As shown in Figures 1 to 8.The present invention provides a kind of assembly concrete laminated floor slab connection structure, including top shows Layer 40 and lower part prefabricated board 1 are poured, the lower part prefabricated board 1 includes the superimposed sheet of muti-piece splicing;The superimposed sheet is itself and other Multiple first grooves 11, the first groove 11 1 at the splicing edge on two adjacent superimposed sheets are offered on the side of superimposed sheet splicing One corresponds to and is mutually matched to form the second groove 110, and connection reinforcing bar 20, the top are placed with inside second groove 110 In-situ layer 40 is poured on the lower part prefabricated board 1 and the connection reinforcing bar 20.First groove 11 is rectangular recess, described Rectangular recess is made by the way of mold, and mold compresses are entered to the concrete surface of ot-yet-hardened, is solidified to concrete curing Mold is taken out afterwards, rectangular recess self-assembling formation.The purpose that rectangular recess is arranged is in order to place connection reinforcing bar 20 at the scene, such as Shown in Fig. 3, the connection reinforcing bar 20 is using annular bending reinforcing steel bar, and the annular bending connection reinforcing bar is by a rectangular-ambulatory-plane reinforcing bar 201 and rectilinear reinforcement 202 form, wherein the both ends of a reinforcing bar are joined together to form rectangular-ambulatory-plane reinforcing bar 201, The intermediate position of the rectangular-ambulatory-plane reinforcing bar 201 is connected with the straight line steel along the position perpendicular to 201 two sides of rectangular-ambulatory-plane reinforcing bar Muscle 202, the rectangular-ambulatory-plane reinforcing bar 201 are that the axial same direction is bent with rectilinear reinforcement 202.The annular bending connection reinforcing bar Two sides be placed into two adjacent grooves respectively.Reinforcing bar can be effectively reduced using annular bending reinforcing steel bar Anchorage length, the length of concrete tooth-like recesses can be reduced by reducing anchorage length of steel bar, to reduce what groove was destroyed Risk;Simultaneously as the connection reinforcing bar in two grooves is connected by annular bending, so that it is easy to put, to simplify Construction technology.The connection reinforcing bar that groove reduces puts depth, to connect the effective of reinforcing bar when improving floor Force Calculation Highly, it thus no longer needs to increase the thickness of in-situ layer, and plays the role of improving connecting portion strength and stiffness.The overlapping 10 quantity of plate is muti-piece, connects into an entirety by close spelling mode between muti-piece superimposed sheet, is spliced in the way of close spelling It constructs relatively simple.
Preferably, as shown in fig. 6, can be placed in 110 upper vertical of the second groove in 110 extending direction of the second groove There is elongated reinforcing bar 30, Fig. 7 is the organigram of the edge joint position when setting up elongated reinforcing bar before pouring, the length of the elongated reinforcing bar 30 Degree is generally equivalent to the length of its placed superimposed sheet side, pours in section and connects after being strengthened by placing elongated reinforcing bar on groove The globality of reinforcing bar, in addition, there is embedded bar in the superimposed sheet, the orthogonal distribution of embedded bar in superimposed sheet Portion, the embedded bar are folded upward in one end at connecting portion and expose overlapping plate surface.It is pre-buried in prefabricated board Reinforcing bar is folded upward at exposing plate face at close connecting portion can play the role of reinforcing connection reinforcing bar to drawing, can effectively subtract Few anchorage length of steel bar.
In the present embodiment, the size shape of all first grooves 110 is all the same.It is to be understood that these first grooves 11 Between size and shape can also be not exactly the same, for example, the size of a part of groove is larger, and the ruler of another part groove Very little smaller, for another example, the shape of a part of groove is rectangle, and the shape of another part groove is trapezoidal or other shapes , if the groove on two joint faces can coincide on enable groove place connection reinforcing bar, can also have it is many its His deformation, this will not be repeated here.
All groove parts are to be uniformly distributed in the present embodiment, it is to be understood that these grooves can also in practical applications With non-uniform Distribution, as shown in figure 9, the distribution of groove required for oneself can be arranged as needed, it should be noted that at this time It is described annular bending connection reinforcing bar be also sized to corresponding adjustment is made with the non-uniform Distribution of groove.
Superimposed sheet only has two sides distribution fluted in the present embodiment, and groove is aligned between two pieces of adjacent superimposed sheets, to it Groove in place connection reinforcing bar become an entirety.It is understood that the groove can be distributed in four sides of superimposed sheet Side is not only and is distributed in two sides, and as shown in Figure 10, groove can also be distributed in three sides of superimposed sheet, such as in engineering In application, the superimposed sheet of outermost is only needed in three side redistribution grooves, thus engineering in practice can be as needed Select that groove is arranged in which specific side of superimposed sheet, groove only can also be set a side, this will not be repeated here.
Embodiment two
As shown in figure 11, the present embodiment two and the difference of embodiment one are, the connection reinforcing bar 20 is not using annular Bending connection reinforcing bar, but using a rectilinear reinforcement as connection reinforcing bar, in the direction along vertical connection reinforcing bar 20 described Elongated reinforcing bar 30 is placed on second groove 110, Figure 11 is the organigram of edge joint position when setting up elongated reinforcing bar before pouring, The process process that reinforcing bar early period can be reduced using rectilinear reinforcement as connection reinforcing bar, can effectively save certain cost.
Optionally, connection type can become separate type, such as Figure 12 by close spelling mode between the superimposed sheet of lower part prefabricated board It is shown, it does not contact directly between two pieces of adjacent superimposed sheets but is existed in the case where the alignment of groove each other using connection reinforcing bar Become whole after the completion of pouring, while pouring the globality for connecting reinforcing bar in section after strengthening using elongated reinforcing bar.
In conclusion being had the advantages that cast-in-place including top in concrete building board connecting structure provided by the invention Layer and lower part prefabricated board, the lower part prefabricated board are made of muti-piece superimposed sheet, and multiple grooves, institute is arranged in the surrounding of the superimposed sheet It states multiple superimposed sheets groove in combination to be aligned, connection reinforcing bar is placed in the groove.The precast concrete for not going out muscle overlaps building Plate, is the concrete slab being prefabricated in the factory, and when site operation can be used as template use;The rectangle at prefabricated superimposed sheet edge is recessed Slot, to place connection reinforcing bar;The elongated distributing bar of vertical connecting sewing;Cast-in-place concrete overlapping layers.Above-mentioned construction is so that pre- Reinforced concrete slab processed simplifies plant produced process, improves the degree of product standardization without going out muscle.Scene uses close spelling Form assembles floor, eliminates post-cast strip, so that construction more convenient and quicker.Connection reinforcing bar is put into rectangular recess, so that comparing In Normal practice, the effective height for connecting reinforcing bar is increased, and so as to accordingly reduce in-situ layer thickness, saves project cost.
It should be noted last that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although ginseng It is described the invention in detail according to preferred embodiment, those skilled in the art should understand that, it can be to the present invention Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention.

Claims (10)

1. a kind of assembly concrete laminated floor slab connection structure, which is characterized in that including top in-situ layer and lower part prefabricated board, The lower part prefabricated board includes the superimposed sheet of muti-piece splicing;The superimposed sheet offers on its side with the splicing of other superimposed sheets Multiple first grooves, the first groove corresponds and is mutually matched that form second recessed at the splicing edge on two adjacent superimposed sheets Slot, second inside grooves are placed with connection reinforcing bar, and the top in-situ layer is poured in the lower part prefabricated board and the company It connects on reinforcing bar.
2. a kind of assembly concrete laminated floor slab connection structure as described in claim 1, which is characterized in that described second is recessed Slot upper vertical is placed with elongated reinforcing bar in the second groove extending direction, and the length of the elongated reinforcing bar is equal to adjacent two and folds The length on the side where the stitching portion of plywood.
3. a kind of assembly concrete laminated floor slab connection structure as described in claim 1, which is characterized in that the connection steel Muscle is linear, and the both ends of the connection reinforcing bar are located in two the first grooves for forming second groove.
4. a kind of assembly concrete laminated floor slab connection structure as described in claim 1, which is characterized in that the connection steel Muscle is made of using annular bending reinforcing steel bar, the annular bending reinforcing steel bar a rectangular-ambulatory-plane reinforcing bar and a rectilinear reinforcement, and described time Font reinforcing bar include opposite first while and when second, opposite third while and when the 4th, the both ends difference of the rectilinear reinforcement Be fixed on the first of the rectangular-ambulatory-plane reinforcing bar while and midpoint when second, the rectangular-ambulatory-plane reinforcing bar first while and when second Be that the axial same direction is bent to form a bulge-structure with rectilinear reinforcement, the third of the rectangular-ambulatory-plane reinforcing bar while and when the 4th It is respectively arranged in two adjacent the second grooves.
5. a kind of assembly concrete laminated floor slab connection structure as described in claim 1, which is characterized in that the superimposed sheet Inside have an embedded bar, the embedded bar include intersect vertically be distributed in inside superimposed sheet along the first groove extending direction Transverse steel and longitudinal reinforcement perpendicular to the first groove extending direction, the transverse steel a little close to described Stitching portion is folded upward at and exposes overlapping plate surface and between two adjacent first grooves.
6. a kind of assembly concrete laminated floor slab connection structure as described in claim 1, which is characterized in that described first is recessed Slot is rectangular recess, and the rectangular recess is made by the way of mold, and mold compresses are entered to the concrete surface of ot-yet-hardened, Mold is taken out to form first groove after concrete curing solidification.
7. a kind of assembly concrete laminated floor slab connection structure as described in claim 1, which is characterized in that the superimposed sheet For the smooth superimposed sheet for not going out muscle of surrounding.
8. a kind of assembly concrete laminated floor slab connection structure as claimed in claim 3, which is characterized in that described first is recessed The depth of slot is greater than the diameter of the connection reinforcing bar.
9. a kind of assembly concrete laminated floor slab connection structure as claimed in claim 3, which is characterized in that the connection steel The length of muscle is less than or equal to two first grooves along the sum of the length of extending direction.
10. a kind of assembly concrete laminated floor slab connection structure as described in claim 1, which is characterized in that the overlapping Plate quantity is muti-piece, is connected between muti-piece superimposed sheet by close spelling mode.
CN201811045747.3A 2018-06-26 2018-09-07 Assembled concrete coincide floor connection structure Active CN109057119B (en)

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CN109732742A (en) * 2019-03-01 2019-05-10 中国二十二冶集团有限公司 Laminated floor slab mold and its construction method
CN110080445A (en) * 2019-05-27 2019-08-02 沈阳建筑大学 A kind of sawtooth pattern Honeycomb Beam superimposed sheet and its preparation and connection method
CN110185182A (en) * 2019-06-13 2019-08-30 天津城建大学 Concrete folding plate construction is with being stably connected with structure and construction method
CN110258907A (en) * 2019-05-15 2019-09-20 悉地(北京)国际建筑设计顾问有限公司 A kind of prefabricated board and production method, laminated floor slab and production method
CN110424603A (en) * 2019-07-18 2019-11-08 南京长江都市建筑设计股份有限公司 A kind of two-way prefabricated superimposed sheet structure of close spelling formula
CN110735492A (en) * 2019-10-28 2020-01-31 浙江中清大建筑产业化有限公司 Connecting structure of prestressed hollow composite slabs and construction method thereof
CN110847467A (en) * 2019-11-18 2020-02-28 三一筑工科技有限公司 Laminated prefabricated floor slab and construction method thereof
CN112240071A (en) * 2020-11-05 2021-01-19 江苏建筑职业技术学院 Prefabricated assembly type laminated slab and using method thereof
CN112523411A (en) * 2020-12-22 2021-03-19 福州建工(集团)总公司 Assembled composite floor slab and installation method thereof
CN113043419A (en) * 2021-02-23 2021-06-29 中建科技集团有限公司 Production device and production method of laminated slab with grooves and ribs not formed on periphery
CN115262831A (en) * 2022-08-09 2022-11-01 筑邦绿建科技(重庆)有限公司 Integral type splicing seam construction method for fabricated floor and floor
CN115538676A (en) * 2022-09-14 2022-12-30 上海宝冶集团有限公司 Prefabricated reinforcement-free laminated slab and construction method thereof

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CN109732742A (en) * 2019-03-01 2019-05-10 中国二十二冶集团有限公司 Laminated floor slab mold and its construction method
CN110258907A (en) * 2019-05-15 2019-09-20 悉地(北京)国际建筑设计顾问有限公司 A kind of prefabricated board and production method, laminated floor slab and production method
CN110080445B (en) * 2019-05-27 2024-06-04 沈阳建筑大学 Sawtooth type honeycomb beam laminated slab and preparation and connection methods thereof
CN110080445A (en) * 2019-05-27 2019-08-02 沈阳建筑大学 A kind of sawtooth pattern Honeycomb Beam superimposed sheet and its preparation and connection method
CN110185182A (en) * 2019-06-13 2019-08-30 天津城建大学 Concrete folding plate construction is with being stably connected with structure and construction method
CN110424603A (en) * 2019-07-18 2019-11-08 南京长江都市建筑设计股份有限公司 A kind of two-way prefabricated superimposed sheet structure of close spelling formula
CN110735492A (en) * 2019-10-28 2020-01-31 浙江中清大建筑产业化有限公司 Connecting structure of prestressed hollow composite slabs and construction method thereof
CN110847467A (en) * 2019-11-18 2020-02-28 三一筑工科技有限公司 Laminated prefabricated floor slab and construction method thereof
CN112240071A (en) * 2020-11-05 2021-01-19 江苏建筑职业技术学院 Prefabricated assembly type laminated slab and using method thereof
CN112523411A (en) * 2020-12-22 2021-03-19 福州建工(集团)总公司 Assembled composite floor slab and installation method thereof
CN113043419A (en) * 2021-02-23 2021-06-29 中建科技集团有限公司 Production device and production method of laminated slab with grooves and ribs not formed on periphery
CN115262831A (en) * 2022-08-09 2022-11-01 筑邦绿建科技(重庆)有限公司 Integral type splicing seam construction method for fabricated floor and floor
CN115538676A (en) * 2022-09-14 2022-12-30 上海宝冶集团有限公司 Prefabricated reinforcement-free laminated slab and construction method thereof

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