阅读说明：本技术 带有堆放吊装一体件的带肋叠合板及其堆放吊装方法 (Ribbed laminated slab with stacking and hoisting integrated piece and stacking and hoisting method thereof ) 是由 牟银林 侯和涛 陈骁 于 2021-07-13 设计创作，主要内容包括：本发明公开了一种带有堆放吊装一体件的带肋叠合板及其堆放吊装方法,属于装配式建筑领域,该带肋叠合板包括混凝土底板、钢肋和混凝土上翼缘；堆放吊装一体件由一对相背设置的C型钢组成,包括腹板、内翼缘和外翼缘,腹板上开设有吊装孔；两个吊装一体件分别位于一个钢肋的两端固定连接；混凝土上翼缘浇筑在钢肋上部,使得混凝土上翼缘与钢肋上部固定连接,并且混凝土上翼缘的顶面与堆放吊装一体件的顶面齐平；混凝土底板浇筑在钢肋和堆放吊装一体件下部,使得混凝土底板与钢肋下部以及堆放吊装一体件下部固定连接。本发明生产工艺简单、成本低廉,堆放吊装操作方便、安全性高、施工速度快。(The invention discloses a ribbed composite slab with an integrated stacking and hoisting piece and a stacking and hoisting method thereof, belonging to the field of fabricated buildings, wherein the ribbed composite slab comprises a concrete bottom plate, a steel rib and a concrete upper flange; the stacking and hoisting integrated piece consists of a pair of C-shaped steel which are arranged oppositely, and comprises a web plate, an inner flange and an outer flange, wherein hoisting holes are formed in the web plate; the two hoisting integrated pieces are respectively positioned at two ends of one steel rib and fixedly connected; the concrete upper flange is poured on the upper part of the steel rib, so that the concrete upper flange is fixedly connected with the upper part of the steel rib, and the top surface of the concrete upper flange is flush with the top surface of the stacked and hoisted integrated piece; the concrete bottom plate is poured on the lower portions of the steel ribs and the stacking and hoisting integrated pieces, so that the concrete bottom plate is fixedly connected with the lower portions of the steel ribs and the lower portions of the stacking and hoisting integrated pieces. The invention has simple production process, low cost, convenient stacking and hoisting operation, high safety and high construction speed.)

1. The utility model provides a superimposed sheet with rib with stack integrative piece of hoist and mount which characterized in that, superimposed sheet with rib includes concrete bottom plate, steel rib and concrete top flange, wherein:

the stacking and hoisting integrated piece comprises a pair of C-shaped steels arranged in an opposite manner, and hoisting holes are formed in webs of the pair of C-shaped steels;

the two stacking and hoisting integrated pieces are respectively positioned at two ends of one steel rib, and are respectively fixedly connected with two ends of the steel rib;

the concrete upper flange is poured on the upper part of the steel rib, so that the concrete upper flange is fixedly connected with the upper part of the steel rib, and the top surface of the concrete upper flange is flush with the top surface of the stacking and hoisting integrated piece;

the concrete bottom plate is poured on the lower portions of the steel ribs and the stacking and hoisting integrated piece, so that the concrete bottom plate is fixedly connected with the lower portions of the steel ribs and the lower portions of the stacking and hoisting integrated piece.

2. The laminated slab with the ribs for stacking and hoisting integrated pieces as claimed in claim 1, wherein a gap is left between the pair of C-shaped steels, the thickness of the gap is equal to that of the steel rib, the end part of the steel rib is inserted into the gap and fixedly connected with the web plates of the pair of C-shaped steels, and the steel rib is provided with a first through hole at the position of the hoisting hole.

3. The ribbed composite slab with stacking and hoisting integrated pieces as claimed in claim 2, wherein the steel rib comprises a steel rib web, a steel rib upper flange and a steel rib lower flange, the two ends of the steel rib are not provided with the steel rib upper flange, the end part of the steel rib web is inserted into the gap and fixedly connected with the webs of the pair of C-shaped steels through self-tapping screws, and the first through hole is opened at the two ends of the steel rib web.

4. The laminated slab with the ribs for stacking and hoisting integrated pieces as claimed in claim 3, wherein the bottom end of the stacked and hoisted integrated piece is located on the upper surface of the lower flange of the steel rib, and the heights of the two ends of the web of the steel rib gradually change to be the same as the height of the stacked and hoisted integrated piece.

5. The laminated slab with the ribs for stacking and hoisting integrated pieces as claimed in claim 3, wherein a plurality of casting through holes are formed on the inner flanges and/or the webs of the pair of C-shaped steels, and the steel rib webs are provided with second through holes at the positions of the casting through holes.

6. The laminated slab with the ribs for stacking and hoisting integrated pieces as claimed in claim 5, wherein the width of the stacked and hoisted integrated pieces is less than or equal to the distance between the stressed steel bars in the concrete bottom plate;

or the width of the stacking and hoisting integrated piece is larger than the distance between the stressed steel bars in the concrete bottom plate, and vertical grooves for the stressed steel bars in the concrete bottom plate to pass through are formed in the inner flange and the outer flange.

7. The ribbed composite slab with stacking and hoisting integrated pieces as claimed in claim 6, wherein the length of the stacking and hoisting integrated piece is greater than or equal to the supporting length required by the ribbed composite slab, and the sum of the lengths of the steel rib and the two stacking and hoisting integrated pieces at both ends thereof is equal to the length of the concrete bottom slab.

8. A method for stacking and lifting a ribbed composite slab with a stacked and lifted integral piece as claimed in any one of claims 1 to 7, wherein said method comprises:

s1: the lifting appliance penetrates through a lifting hole of the first ribbed composite slab, the first ribbed composite slab is lifted to a stacking site, and the first ribbed composite slab is placed at a stacking position;

s2: removing the lifting appliance, and placing a flat batten or cushion block with a certain thickness on the top of the stacked and lifted integrated body of the first ribbed composite slab;

s3: the lifting appliance penetrates through a lifting hole of the next laminated slab with the ribs, the next laminated slab with the ribs is lifted to a stacking place and placed on a flat batten or a cushion block on the previous laminated slab with the ribs, and the lifting appliance is removed;

s4: placing a flat batten or cushion block with a certain thickness on the top of the stacked and hoisted integrated body of the hoisted laminated slab with the rib;

and repeating the steps from S3 to S4 until the stacking is finished.

9. The method for stacking and hoisting the ribbed composite slab with the integral stacking and hoisting member as claimed in claim 8, wherein the horizontal dimension of the flat batten or spacer is equal to or slightly larger than the horizontal dimension of the integral stacking and hoisting member.

10. The method for stacking and lifting a ribbed composite slab with a stacked and lifted integral piece as claimed in claim 9, further comprising:

s5: and (4) enabling the lifting appliance to penetrate through a lifting hole of the ribbed composite slab to be installed, and lifting the ribbed composite slab to be installed to an installation position.

Technical Field

The invention relates to the field of fabricated buildings, in particular to a ribbed composite slab with a stacking and hoisting integrated piece and a stacking and hoisting method thereof.

Background

The ribbed composite slab is a common building component in an assembly type building and generally comprises a concrete bottom plate, a steel rib and a concrete upper flange, wherein the concrete upper flange and the concrete bottom plate are connected into a whole through the steel rib. During construction, the ribbed composite slab needs to be stacked and hoisted on site, and the hoisting methods of the ribbed composite slab in the prior art mainly comprise the following methods.

The method comprises the following steps: taking a PK prestressed concrete composite slab as an example, the PK prestressed concrete composite slab is abbreviated as a PK plate, and is a typical ribbed composite slab. When the floor slab is laid, the PK plates are required to be hoisted to the design position of the drawing one by one. The conventional PK plate hoisting method disclosed in chinese patent document CN 201610076643: mainly include one and cut formula lifting hook and one end and the lifting chain of cutting formula lifting hook upper end and being connected, other end fixedly connected with rings, cut the coupler body that the formula lifting hook includes two symmetries, the coupler body comprises cantilever and clamping part. However, the lifting appliance has the advantages of large volume, complex structure, independent processing and manufacturing, high cost, high production requirement on plate ribs, low lifting speed and low efficiency, and is not beneficial to popularization and application.

The second method comprises the following steps: taking a PK prestressed concrete laminated slab as an example, chinese patent document CN201710424130 discloses a PK prestressed concrete lifting appliance and a lifting method using the lifting appliance. This hoist comprises telescopic stay tube and two lifting hooks of installing both ends about telescopic stay tube, and there is the position of bending the lifting hook lower part, and the PK board rib hole can be gone into to the card in the position of bending, realizes fixing through dedicated fixed card, prevents the unhook. When the PK plate is hoisted, the telescopic supporting tube is hoisted by the hook of the tower crane or the crane through the steel strand, then the bent parts at the tail ends of the two hooks at the two ends of the telescopic supporting tube are clamped into the rib holes of the PK plate, and finally, the special fixing clamping piece is adopted for fixing and hoisting. The lifting appliance is complex in composition, needs to be manufactured and processed independently, has multiple lifting procedures and low construction efficiency, and the PK plate rib holes at the fixed positions of the lifting hooks need to be manufactured and processed independently, so that the production process is complex.

For the hoisting of the laminated slab with the rib, except for the hoisting method adopting the first method and the second method, the hoisting method is more common that the lifting hook is independently pre-buried on the prefabricated bottom plate, and because the lifting hook and the rib are not on the same stress line, and the thickness of the bottom plate is thinner, the position of the lifting hook is easy to cause concrete damage or lifting hook pull-out due to disturbance during hoisting, and the hoisting safety can not be ensured.

The three existing methods are all hoisting technologies of the laminated slab. For stacking of the ribbed composite slab, the cushion blocks are placed at the positions, close to the ribs, of the two ends of the bottom plate, although the stacking mode can avoid the pressed damage of the plate ribs, the bottom plate is thinner, the stacking can cause cracking of the bottom plate, the surface of a batten is required to be flat and consistent in size for ensuring the stacking quality, and the batten placing position on the upper surface of the bottom plate is required to be flat and smooth, so that unnecessary production quality control links are increased, the production cost is increased, and the popularization and the application of the ribbed composite slab are not facilitated.

Disclosure of Invention

The ribbed composite slab with the integral stacking and hoisting pieces and the stacking and hoisting method thereof provided by the invention have the advantages of simple production process, low cost, convenience in stacking and hoisting operation, high safety and high construction speed.

The technical scheme provided by the invention is as follows:

the utility model provides a superimposed sheet with rib with stack integrative piece of hoist, the superimposed sheet with rib includes concrete bottom plate, steel rib and concrete top flange, wherein:

the stacking and hoisting integrated piece comprises a pair of C-shaped steels arranged in an opposite manner, and hoisting holes are formed in webs of the pair of C-shaped steels;

the two stacking and hoisting integrated pieces are respectively positioned at two ends of one steel rib, and are respectively fixedly connected with two ends of the steel rib;

the concrete upper flange is poured on the upper part of the steel rib, so that the concrete upper flange is fixedly connected with the upper part of the steel rib, and the top surface of the concrete upper flange is flush with the top surface of the stacking and hoisting integrated piece;

the concrete bottom plate is poured on the lower portions of the steel ribs and the stacking and hoisting integrated piece, so that the concrete bottom plate is fixedly connected with the lower portions of the steel ribs and the lower portions of the stacking and hoisting integrated piece.

Furthermore, a gap is reserved between the pair of C-shaped steel, the thickness of the gap is equal to that of the steel rib, the end portion of the steel rib is inserted into the gap and fixedly connected with the webs of the pair of C-shaped steel, and a first through hole is formed in the position, corresponding to the hoisting hole, of the steel rib.

Furthermore, the steel ribs comprise steel rib webs, steel rib upper flanges and steel rib lower flanges, the two ends of each steel rib are free of the steel rib upper flanges, the end portions of the steel rib webs are inserted into the gaps and fixedly connected with the webs of the pair of C-shaped steel through self-tapping screws, and the first through holes are formed in the two ends of the steel rib webs.

Further, the bottom of stacking and hoisting the integrated piece is located on the upper surface of the lower flange of the steel rib, and the heights of the two ends of the web plate of the steel rib gradually change to be the same as the height of stacking and hoisting the integrated piece.

Furthermore, a plurality of pouring through holes are formed in the inner flanges and/or the webs of the pair of C-shaped steel, and second through holes are formed in the positions, where the pouring through holes are formed, of the steel rib webs.

Furthermore, the width of the stacking and hoisting integrated piece is less than or equal to the distance between the stressed steel bars in the concrete bottom plate;

or the width of the stacking and hoisting integrated piece is larger than the distance between the stressed steel bars in the concrete bottom plate, and vertical grooves for the stressed steel bars in the concrete bottom plate to pass through are formed in the inner flange and the outer flange.

Further, the length of the stacking and hoisting integrated piece is greater than or equal to the supporting length required by the ribbed composite slab, and the sum of the lengths of the steel rib and the two stacking and hoisting integrated pieces at the two ends of the steel rib is equal to the length of the concrete bottom plate.

A method of stacking and lifting ribbed composite slabs with a unitary stacking and lifting member, the method comprising:

s1: the lifting appliance penetrates through a lifting hole of the first ribbed composite slab, the first ribbed composite slab is lifted to a stacking site, and the first ribbed composite slab is placed at a stacking position;

s2: removing the lifting appliance, and placing a flat batten or cushion block with a certain thickness on the top of the stacked and lifted integrated body of the first ribbed composite slab;

s3: the lifting appliance penetrates through a lifting hole of the next laminated slab with the ribs, the next laminated slab with the ribs is lifted to a stacking place and placed on a flat batten or a cushion block on the previous laminated slab with the ribs, and the lifting appliance is removed;

s4: placing a flat batten or cushion block with a certain thickness on the top of the stacked and hoisted integrated body of the hoisted laminated slab with the rib;

and repeating the steps from S3 to S4 until the stacking is finished.

Further, the horizontal size of the flat battens or the cushion blocks is equal to or slightly larger than that of the stacked and hoisted integrated piece.

Further, the method further comprises:

s5: and (4) enabling the lifting appliance to penetrate through a lifting hole of the ribbed composite slab to be installed, and lifting the ribbed composite slab to be installed to an installation position.

The invention has the following beneficial effects:

the stacking and hoisting integrated piece can be used for hoisting the laminated slab and also can be used for stacking the laminated slab. During hoisting, only the lifting appliances such as steel strands or lifting hooks need to pass through the web plate hoisting holes for fixing, and the hoisting can be realized, so that the process is simple, the operation is convenient, and the time and the labor are saved. When stacking, a flat batten or cushion block with a certain thickness is placed at the top of the stacked and hoisted integrated piece (the horizontal size of the flat batten or the cushion block is slightly larger than that of the stacked and hoisted integrated piece), and the upper layer of ribbed laminated slab directly falls on the flat batten or the cushion block, so that in the stacking process of the ribbed laminated slab, all weight is borne by the stacked and hoisted integrated piece, the upper flange of concrete cannot be pressed, the problem of bottom plate cracking caused by the local placement of the batten on the bottom plate is avoided, force transmission is direct, and safety and reliability are realized.

Drawings

FIG. 1 is a perspective view of a stacked and hoisted integrated unit of the present invention;

FIG. 2 is a perspective view of a steel rib in the present invention;

FIG. 3 is a schematic view of the connection mode of the stacking and hoisting integrated piece and the steel rib in the invention;

FIG. 4 is a side cross-sectional view of the ribbed composite slab of the present invention with stacked and hoisted integral pieces;

FIG. 5 is a perspective view of the ribbed composite slab with stacked and hoisted integral pieces of the present invention;

fig. 6 is a schematic stacking view of the ribbed composite slab with a stacked and hoisted integral piece according to the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Example 1:

the embodiment of the present invention provides a ribbed composite slab 200 with a stacked and hoisted integrated piece 100, as shown in fig. 1 to 6, the ribbed composite slab 200 includes a concrete bottom plate 1, steel ribs 2 and a concrete upper flange 3, wherein:

the stacking and hoisting integrated piece 100 comprises a pair of C-shaped steels 4 which are arranged in an opposite mode, and hoisting holes 5 are formed in web plates 6 of the pair of C-shaped steels 4.

The two stacking and hoisting integrated pieces 100 are respectively positioned at two ends of one steel rib 2, and the two stacking and hoisting integrated pieces 100 are respectively fixedly connected with two ends of the steel rib 2.

The concrete upper flange 3 of the ribbed composite slab 200 is poured on the upper portion of the steel rib 2, so that the concrete upper flange 3 is fixedly connected with the upper portion of the steel rib 2, and the top surface of the concrete upper flange 3 is flush with the top surface of the stacked and hoisted integrated piece 100.

The concrete bottom plate 1 is poured on the lower portions of the steel ribs 2 and the stacked and hoisted integrated piece 100, so that the concrete bottom plate 1 is fixedly connected with the lower portions of the steel ribs 2 and the stacked and hoisted integrated piece 100.

In the present invention, the stacked and hoisted integrated member 100 is composed of a pair of C-shaped steels arranged back-to-back in combination, the section of which is i-shaped, and the pair of C-shaped steels can be cut from cold-formed thin-walled C-shaped steels. The C-shaped steel comprises an outer flange 8, an inner flange 7 and a web 6, the webs 6 of the pair of C-shaped steel are combined back to back, and the hoisting hole 5 is formed in the webs 6 of the pair of C-shaped steel.

The invention relates to a method for processing a ribbed composite slab with stacked and hoisted integrated pieces, which comprises the following steps:

(1) and processing and manufacturing the steel rib and stacking and hoisting integrated pieces according to design requirements, and fixedly connecting the stacking and hoisting integrated pieces to two ends of the steel rib. The invention does not limit the fixing mode of the steel rib and the stacking and hoisting integrated piece, and only needs to ensure that the connection strength meets the design requirement.

(2) And (3) inverting the steel rib with the stacked and hoisted integrated piece, erecting a plate rib mould, pouring plate rib concrete, processing and manufacturing a concrete upper flange of the plate rib, maintaining until the plate rib reaches the design strength, and removing the mould.

(3) Erecting a bottom plate side formwork, fixing the plate ribs with the stacked and hoisted integrated pieces according to design production requirements, pouring bottom plate concrete, and removing the formwork after the bottom plate concrete is cured to the design strength to obtain the ribbed laminated slab with the stacked and hoisted integrated pieces.

The invention aims to provide a ribbed composite slab with a stacking and hoisting integrated piece, wherein the stacking and hoisting integrated piece consisting of a pair of C-shaped steel is arranged at two ends of a plate rib of the prefabricated ribbed composite slab, and the stacking and hoisting integrated piece can be used for hoisting the composite slab and stacking the composite slab.

During hoisting, only the lifting appliances such as steel strands or lifting hooks need to pass through the web plate hoisting holes for fixing, and the hoisting can be realized, so that the process is simple, the operation is convenient, and the time and the labor are saved. During stacking, a flat batten or a cushion block with a certain thickness is placed on the top of the stacking and hoisting integrated piece (the horizontal size of the flat batten 17 or the cushion block is slightly larger than that of the stacking and hoisting integrated piece), and the upper layer of ribbed laminated slab directly falls on the flat batten 17 or the cushion block, as shown in fig. 6. Therefore, in the stacking process of the ribbed composite slab, all the weight is borne by the stacking and hoisting integrated piece, the upper flange of the concrete cannot be pressed, the problem of cracking of the bottom plate caused by local placement of battens on the bottom plate is avoided, the force is transferred directly, and the ribbed composite slab is safe and reliable.

For conveniently stacking the connection of hoist and mount integrative piece 100 and steel rib 2 both ends fixed, leave gap 9 between the C shaped steel that constitutes a pair of back of the body of piling hoist and mount 100 that sets up mutually, this gap 9's thickness equals steel rib 2's thickness, steel rib 2's tip insert in gap 9 and with a pair of C shaped steel's web fixed connection, first through-hole 10 has been seted up at hole for hoist 5's position to steel rib 2.

The steel rib can be in a Z-shaped steel, an H-shaped steel or a C-shaped steel, the steel rib comprises a steel rib upper flange 11, a steel rib lower flange 12 and a steel rib web 13, the two ends of the steel rib are free of the steel rib upper flanges 11, so that the end portions of the steel rib web 13 are inserted into the gaps 9 and fixedly connected with the webs 6 of the pair of C-shaped steels through self-tapping screws 14, and the first through holes 10 are formed in the two ends of the steel rib web 13.

The bottom end of the stacking and hoisting integrated piece 100 is positioned on the upper surface of the steel rib lower flange 12, and the heights of the two ends of the steel rib web 13 are gradually increased to be the same as the height of the stacking and hoisting integrated piece 100.

As an improvement of the embodiment of the invention, a plurality of pouring through holes 15 and 15 'are arranged on the inner flanges 7 and/or the web plates 6 of the pair of C-shaped steel, and the steel rib web plate 13 is provided with a second through hole 18 at the position of the pouring through hole 15'.

When the concrete bottom plate is poured, the concrete of the bottom plate can flow into the pouring through hole, and the anchoring effect of the stacking and hoisting integrated piece in the concrete bottom plate is enhanced. The casting through holes 15, 15 'are preferably circular holes, and the number of the casting through holes 15 and 15' may be two or more.

The width of the stacked and hoisted integrated piece 100 is not limited by the invention, and in some examples, the width of the stacked and hoisted integrated piece 100 is less than or equal to the distance between the stressed steel bars 16 in the concrete bottom plate 1, so that when the concrete bottom plate is poured, the stacked and hoisted integrated piece can fall between two adjacent stressed steel bars 16 of the concrete bottom plate, and the stressed steel bars 16 of the concrete bottom plate can be conveniently arranged.

In other examples, when the distance between the stressed steel bars 16 of the concrete bottom plate 1 is small (e.g. less than 50mm), the width of the stacked and hoisted integrated piece 100 may be greater than the distance between the stressed steel bars 16 in the concrete bottom plate 1, and at this time, vertical slots (not shown in the drawings) for the stressed steel bars 16 in the concrete bottom plate 1 to pass through should be formed on the inner flange 7 and the outer flange 8 of the stacked and hoisted integrated piece, so that the stressed steel bars 16 pass through the stacked and hoisted integrated piece 100, and the number of the vertical slots is the same as the number of the stressed steel bars 16 passing through the stacked and hoisted integrated piece 100.

In the present invention, the length of the stacking and hoisting integrated member 100 should be greater than or equal to the supporting length (e.g. 50mm) required by the ribbed composite slab, and the sum of the lengths of the steel rib 2 and the two stacking and hoisting integrated members 100 at both ends thereof is equal to the length of the concrete bottom slab 1. The height of the stacked and hoisted integrated piece 100 is the same as the height of the rib of the laminated slab, so as to ensure that the top of the stacked and hoisted integrated piece is flush with the top of the rib of the slab.

Example 2:

the embodiment of the invention provides a stacking and hoisting method of a ribbed composite slab with a stacking and hoisting integrated piece in the embodiment 1, which comprises the following steps:

s1: and (3) enabling lifting appliances such as a steel strand for lifting or a lifting hook to pass through the lifting hole 5 of the first ribbed composite slab, lifting the first ribbed composite slab to a stacking place, and stably placing the first ribbed composite slab to the stacking position.

S2: and removing the lifting appliance, and placing a flat batten 17 or a cushion block with a certain thickness on the top of the first ribbed composite slab stacking and lifting integrated piece. The horizontal dimension of the flat battens 17 or the cushion blocks is equal to or slightly larger than that of the stacked and hoisted integrated piece.

S3: and (3) the lifting appliance penetrates through the lifting hole 5 of the next ribbed composite slab, the next ribbed composite slab is lifted to a stacking place, the next ribbed composite slab is placed on the flat batten 17 or the cushion block on the previous ribbed composite slab, and the lifting appliance is removed.

S4: and flat battens 17 or cushion blocks with certain thickness are placed on the top of the stacked and hoisted integrated piece of the hoisted laminated slab with the ribs.

The stacking process is repeated from S3 to S4 until the stacking is completed, and as shown in FIG. 6, the number of stacked layers is set as needed, but it is generally not preferable to exceed 9.

S5: and (3) the lifting appliance penetrates through a lifting hole 5 of the ribbed composite slab to be installed, and the ribbed composite slab to be installed is lifted to an installation position, so that the laying work of the composite slab is completed.

The method for stacking and hoisting the ribbed composite slab with the stacking and hoisting integrated piece has the advantages of simple production process, convenience in operation, high safety, high construction speed and low cost. The self-tapping screw is fixedly connected with the steel rib and the stacking and hoisting integrated piece, the advantages of high strength, simplicity in processing and manufacturing and high hoisting and stacking safety of the stacking and hoisting integrated piece are exerted, and the upper flange of concrete cannot be damaged.

The connecting method provided by the embodiment of the invention comprises all technical schemes of stacking and lifting the ribbed composite slab with the integrated member in the embodiment 1, has the beneficial effects of the embodiment 1, and is not described again. Other parts of this embodiment not mentioned above can be referred to the corresponding parts in the foregoing embodiment 1.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.