CN210713437U

CN210713437U - Composite floor slab of fabricated building

Info

Publication number: CN210713437U
Application number: CN201921322185.2U
Authority: CN
Inventors: 张思明; 刘俊东; 范阿龙; 刘海豹
Original assignee: Tianjin Shengyuan Assembly Building Co Ltd
Current assignee: Tianjin Shengyuan Assembly Building Co Ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-06-09
Anticipated expiration: 2029-08-15

Abstract

The utility model relates to a coincide floor of assembly type structure. Comprises an inner rib net; the device also comprises four metal trusses which are arranged in parallel; the metal truss comprises a top transverse rib positioned at the top and bottom transverse ribs positioned at two sides of the bottom, and corrugated bent ribs are welded between two sides of the top transverse rib and the two bottom transverse ribs; a first corner reinforcing rib net, a second corner reinforcing rib net, a third corner reinforcing rib net and a fourth corner reinforcing rib net are respectively welded and fixed at the four corners of the inner rib net; concrete is integrally poured on the outer sides of the inner rib nets and the reinforcing rib nets at the corners to form a floor slab body; the floor slab comprises a floor slab body and is characterized in that a plurality of tubular embedded parts are arranged on the floor slab body, the tubular embedded parts are made of metal materials, anti-falling convex edges are arranged on the outer walls of the tubular embedded parts, the middle parts of the tubular embedded parts are welded and fixed with an inner rib net, the upper ends of the tubular embedded parts are flush with the groove bottom of a groove formed in the upper surface of the floor slab body, and the lower ends of the tubular embedded parts are. The utility model discloses structural strength is high, hoist and mount convenient, provide optional hard hoist and mount mode.

Description

Composite floor slab of fabricated building

Technical Field

The utility model belongs to the technical field of the assembly type structure, especially, relate to an assembly type structure's coincide floor.

Background

Buildings assembled from prefabricated parts at the site are called fabricated buildings. In recent years, with the progress of building technology and the development of building concepts, the fabricated building has been popularized with its many advantages. 1. A large number of building parts are produced and processed in a workshop, and a large number of assembly operations are performed on site, so that the number of the assembly operations is greatly reduced compared with the original cast-in-place operation; 2. the building and decoration integrated design and construction are adopted, and the ideal state is that decoration can be synchronously carried out along with the main body construction; 3. standardization of design and informatization of management, the more standard the component is, the higher the production efficiency is, the lower the corresponding component cost will be, and the cost performance of the whole fabricated building is higher and higher in cooperation with digital management of a factory; 4. the requirement of green buildings is met; 5. energy conservation and environmental protection. With the deepening of the technology and the environmental protection concept, the assembled building has wider development prospect.

The laminated floor slab is an assembled integral floor slab formed by laminating prefabricated slabs and cast-in-place reinforced concrete layers. The composite floor slab has good integrity, the upper and lower surfaces of the slab are smooth, the decoration of a finish coat is convenient, and the composite floor slab is suitable for high-rise buildings and large-bay buildings with higher requirement on the integral rigidity. The existing composite floor slab generally comprises an inner rib net, concrete is poured outside the inner rib net, the thickness of the composite floor slab is 40-60mm in general, the maximum span of the composite floor slab is 4-6m and reaches 9m, therefore, the composite floor slab is a building floor slab with large span and small thickness, and the requirement on the structural strength is very high.

Found in actual construction, no matter the current coincide floor is in the transportation, still in hoist and mount and installation link, the damaged condition of bight colliding with often appears. The coincide floor is with its structural style, has the place that structural strength is weak at the corner, and at the in-process of transportation and hoist and mount installation, the corner position is the position that receives the effect of colliding with most easily again, therefore above-mentioned problem has become the showing problem in industry, the urgent need to solve.

On the other hand, the laminated floor slab usually needs frequent hoisting movement (including hoisting and loading and hoisting and installing at a construction site), so that unstable hoisting is also one of the important causes of structural damage. The hoist cable is bound to the position of being close the four corners at coincide floor usually to current hoist and mount mode, hoist and move through the mode that four points were hung, and position lacks the hoisting point in the middle part, and current hoisting structure is prefabricated at the metal rings of plate body upper surface usually, and lifting hook or hoist cable and metal rings are connected fixedly when lifting by crane, and this kind of mode is the mode of pure flexible hoist and mount, takes place to rock the condition such as easily in the hoist and mount process, is difficult for controlling the state, consequently also leads to coincide panel impaired easily.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the technical problem that exists among the well-known technology and provide a structural strength height, hoist and mount convenient, provide the coincide floor of assembly type structure of optional hard hoist and mount mode, avoid the coincide floor to take place to collide with the damage at the in-process of hoist and mount transportation and construction.

The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a composite floor slab of an assembly type building comprises an inner reinforcing mesh consisting of a plurality of longitudinal reinforcing steel bars and a plurality of transverse reinforcing steel bars, wherein the longitudinal reinforcing steel bars and the transverse reinforcing steel bars are in contact at crossed positions and are welded and fixed; the steel bar truss structure also comprises four metal trusses which are arranged in parallel, wherein the metal trusses are arranged at equal intervals and are parallel to the transverse steel bars; the metal truss comprises top transverse ribs positioned at the top and bottom transverse ribs positioned at two sides of the bottom, corrugated bent ribs are welded and fixed between two sides of the top transverse ribs and two bottom transverse ribs, and the bottom transverse ribs are positioned below the longitudinal steel bars and are welded and fixed with the longitudinal steel bars; a first corner reinforcing rib net, a second corner reinforcing rib net, a third corner reinforcing rib net and a fourth corner reinforcing rib net are respectively welded and fixed at the four corners of the inner rib net; concrete is integrally poured on the outer sides of the inner rib nets and the reinforcing rib nets at the corners to form a floor slab body; the floor slab comprises a floor slab body, and is characterized in that a plurality of tubular embedded parts are arranged on the slab body of the floor slab body, the tubular embedded parts are made of metal materials, anti-falling convex edges are arranged on the outer walls of the tubular embedded parts, the tubular embedded parts are integrally poured and formed in the floor slab body, the middle parts of the tubular embedded parts are welded and fixed with an inner rib net, the upper ends of the tubular embedded parts are flush with the groove bottom of a groove formed in the upper surface of the floor slab.

The utility model has the advantages that: the utility model provides a coincide floor of assembly type structure that structural design is reasonable compares with current coincide floor, sets up four metal trusses that parallel through the interior muscle net at the floor among this technical scheme to set up each metal truss and interior muscle net welded fastening, further strengthened the holistic structural strength of coincide floor. Set up bight reinforcing bar net through the four corners position at the floor body, provide the reinforcement in the reinforcement for interior muscle net in four corners department in other words, directly promoted the structural strength of interior muscle net, also promoted the intensity of pouring fashioned floor body in four corners department, consequently more can resist the destruction that the effect of colliding with leads to. The hoisting position of the sling on the metal truss can be adopted during hoisting, the hoisting is convenient, a plurality of tubular embedded parts can be used as additional hoisting positions, and the whole composite floor slab can be hoisted in a hard hoisting mode (if a metal hoisting rod with a buckle at the lower end penetrates into each tubular embedded part), so that the stability of the composite floor slab during hoisting can be further improved, the control of the hoisting process in the hard hoisting mode is easier, the composite floor slab is not easy to swing out of control, and the composite floor slab is further prevented from being collided in the hoisting process.

Preferably: first bight strengthening rib net, second bight strengthening rib net, third bight strengthening rib net and fourth bight strengthening rib net four the same structure, all include the reinforcing of two parallels violently muscle and two parallels the reinforcing and indulge the muscle, strengthen violently muscle and indulge the muscle with the reinforcing and be the cross and at the position welded fastening of contact.

Preferably: still be equipped with a plurality of PVC lamp boxes on the plate body lower surface of floor body, the main part of each PVC lamp box is integrative pours in floor body.

Preferably: pouring concrete to the middle of each metal truss to expose the middle upper part of the top transverse rib and the corrugated bent rib of each metal truss.

Preferably: the corrugated bent rib of the metal truss is formed by bending the same steel bar, the top tip positions of the corrugated bent rib are welded and fixed with the top transverse rib, and the bottom tip positions of the corrugated bent rib are welded and fixed with the inner side of the bottom transverse rib.

Preferably: a first rectangular notch and a second rectangular notch are respectively arranged at two ends of the front edge of the floor slab body.

Preferably: the number of the tubular embedded parts is four, the two on the left side and the two on the right side are symmetrically arranged by the central line of the longitudinal steel bar positioned in the middle position, and the two on the front side and the two on the rear side are symmetrically arranged by the central line of the transverse steel bar positioned in the middle position.

Drawings

Fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic view of the reinforcement structure of the present invention;

fig. 3 is a schematic side view of the present invention;

FIG. 4 is a schematic cross-sectional view A-A of FIG. 2;

FIG. 5 is a schematic cross-sectional view B-B of FIG. 2;

fig. 6 is a schematic cross-sectional view of C-C in fig. 1.

In the figure: 1. a floor slab body; 1-1, a first rectangular notch; 1-2, a second rectangular notch; 1-3, a groove; 2. concrete; 3. a metal truss; 3-1, top transverse ribs; 3-2, corrugated bent ribs; 3-3, bottom transverse ribs; 4. longitudinal reinforcing steel bars; 5. a PVC lamp box; 6. transverse reinforcing steel bars; 7. a tubular embedded part; 8. a first corner reinforcing mesh; 9. a second corner reinforcing web; 10. a third corner reinforcing rib net; 11. and a fourth corner reinforcing rib net.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail:

please refer to fig. 1, fig. 2 and fig. 3, the utility model discloses a coincide floor of assembly type structure is by the interior reinforcing bar net that many longitudinal reinforcement 4 and many transverse reinforcement 6 constitute, and longitudinal reinforcement 4 contacts and welded fastening with transverse reinforcement 6 in the position of crossing. As shown in fig. 2, the longitudinal reinforcing bars 4 refer to reinforcing bars arranged in the width direction of the laminated floor, the transverse reinforcing bars 6 refer to reinforcing bars arranged in the length direction of the laminated floor, the longitudinal reinforcing bars 4 and the transverse reinforcing bars 6 are woven into a net shape to form an inner net, and the longitudinal reinforcing bars 4 are located above the transverse reinforcing bars 6. The longitudinal steel bars 4 and the transverse steel bars 6 can be round steel or thread steel.

Still including four metal truss 3 that set up side by side, each metal truss 3 equidistant setting and all be parallel with horizontal reinforcing bar 6. Four metal girders 3 provide reinforcement in the middle of the inner wire mesh.

Referring to fig. 4 and 5, it can be seen that: the metal truss 3 comprises top transverse ribs 3-1 positioned at the top and bottom transverse ribs 3-3 positioned at two sides of the bottom, corrugated bent ribs 3-2 are welded and fixed between two sides of the top transverse ribs 3-1 and the two bottom transverse ribs 3-3, and the bottom transverse ribs 3-3 are positioned below the longitudinal steel bars 4 and are welded and fixed with the longitudinal steel bars 4.

In this embodiment, the corrugated bent rib 3-2 of the metal truss 3 is formed by bending the same steel bar, and the top of each of the top end positions of the corrugated bent rib 3-2 is welded and fixed to the top transverse rib 3-1, and the bottom of each of the top end positions is welded and fixed to the inner side of the bottom transverse rib 6.

At the four corners department of interior muscle net welded fastening have first bight reinforcing bar net 8, second bight reinforcing bar net 9, third bight reinforcing bar net 10 and fourth bight reinforcing bar net 11 respectively, above-mentioned each bight reinforcing bar net provides the reinforcement effect in the four corners department of interior muscle net in other words, has consequently also directly promoted the holistic structural strength of coincide floor, has especially promoted the intensity of coincide floor in the four corners department, has promoted the ability of anti colliding with the destruction.

In this embodiment, first bight reinforcing bar net 8, second bight reinforcing bar net 9, third bight reinforcing bar net 10 and fourth bight reinforcing bar net 11 four's structure is the same, all includes the reinforcement of two parallels violently muscle and two parallels and indulges the muscle, strengthens violently muscle and indulges the muscle with the reinforcement and be the cross and at the position welded fastening of contact. The reinforcing transverse bar is a reinforcing steel bar arranged along the length direction of the laminated floor slab, and the reinforcing longitudinal bar is a reinforcing steel bar arranged along the width direction of the laminated floor slab. When carrying out welded fastening with interior muscle net, strengthen horizontal muscle and longitudinal reinforcement 4 contacts and welded fastening, strengthen vertical muscle and 6 contacts and welded fastening of transverse reinforcement.

Concrete 2 is integrally poured on the outer sides of the inner rib nets and the corner reinforcing rib nets to form a floor slab body 1. Floor body 1 is the rectangle shape, and the both ends of longitudinal reinforcement 4 and horizontal reinforcing bar 6 all expose certain length from floor body 1's edge, constitute the connection end. In this embodiment, the concrete 2 is poured to the middle of each metal truss 3, so that the top transverse rib 3-1 and the middle-upper portion of the corrugated bent rib 3-2 of each metal truss 3 are exposed.

In this embodiment, a first rectangular notch 1-1 and a second rectangular notch 1-2 are respectively disposed at two ends of the front edge of the floor slab body 1. The first rectangular notch 1-1 and the second rectangular notch 1-2 are reserved notches and are used as clamping notches when the laminated floor slab is connected with other prefabricated slabs.

The floor slab comprises a floor slab body 1, and is characterized in that a plurality of tubular embedded parts 7 are arranged on the slab body of the floor slab body 1, the tubular embedded parts 7 are made of metal materials, anti-falling convex edges are arranged on the outer walls of the tubular embedded parts, the tubular embedded parts 7 are integrally cast and formed in the floor slab body 1, the middle parts of the tubular embedded parts are fixedly welded with an inner reinforcing mesh (longitudinal reinforcing steel bars 4 or transverse reinforcing steel bars 6), the upper ends of the tubular embedded parts are flush with the bottoms of grooves 1-3 formed in the upper surface of the floor slab body. The tubular embedded part 7 is used as an embedded component and can be used for connection with a hoisting tool during hard hoisting (for example, a hard hoisting rod penetrates through the tubular embedded part 7). The grooves 1-3 are formed through a prefabricated die during pouring of the floor slab body 1, after the composite floor slab is hoisted and installed, the grooves 1-3 are filled and leveled by adopting a filling material, each tubular embedded part 7 is also blocked, each tubular embedded part 7 cannot be seen from the upper side of the composite floor slab, the lower side of the composite floor slab can be filled and leveled without filling and leveling, and the tubular embedded parts 7 are kept inside through ceiling construction below the composite floor slab when the composite floor slab is not filled and leveled.

In this embodiment, the number of the tubular embedded parts 7 is four, two on the left side and two on the right side are symmetrically arranged with respect to the center line of the longitudinal reinforcement 4 located at the middle position, and two on the front side and two on the rear side are symmetrically arranged with respect to the center line of the transverse reinforcement 6 located at the middle position. I.e. four tubular embedments 7 are distributed at the four corners of a rectangle.

In this embodiment, still be equipped with a plurality of PVC lamp boxes 5 on the plate body lower surface of floor body 1, the main part an organic whole of each PVC lamp box 5 is pour in floor body 1. The PVC lamp box 5 is a current commercial product and is obtained by purchasing.

The production process of the composite floor slab comprises the following steps:

separately forming a first corner reinforcing rib net 8, a second corner reinforcing rib net 9, a third corner reinforcing rib net 10, a fourth corner reinforcing rib net 11 and four metal trusses 3; placing and positioning the four metal trusses 3 and the transverse steel bars 6, and then passing the longitudinal steel bars 4 through the upper parts of the bottom transverse steel bars 3-3 of the metal trusses 3, and placing and positioning; welding and fixing the cross contact positions of the transverse steel bars 6 and the longitudinal steel bars 4, and welding and fixing the cross contact positions of the transverse steel bars 3-3 at the bottom of each metal truss 3 and the longitudinal steel bars 4;

respectively arranging a first corner reinforcing rib net 8, a second corner reinforcing rib net 9, a third corner reinforcing rib net 10 and a fourth corner reinforcing rib net 11 at the four corners of the inner rib net and welding and fixing the four corners, and cutting out the longitudinal steel bars 4 and the transverse steel bars 6 corresponding to the first rectangular notch 1-1 and the second rectangular notch 1-2 and the reinforcing transverse ribs and the reinforcing longitudinal ribs of the corresponding corner reinforcing rib nets; welding and fixing four tubular embedded parts 7 to preset positions on the inner rib net;

placing the structural rib net into a pouring mold, positioning and fixing, placing each PVC lamp box 5 at a preset position, and inserting a forming mold provided with grooves 1-3 at the upper end of each tubular embedded part 7; and pouring concrete 2, vibrating, drying and curing to form a floor slab body 1, demolding and removing the forming mold of the grooves 1-3 to obtain the final laminated floor slab.

This coincide floor's hoist and mount mode:

the lower ends of a plurality of flexible suspension ropes (generally 4) are hooked at the positions, close to the two ends, of the two metal trusses 3 which are respectively positioned at the two sides, and four-point hoisting is equivalent; when hard hoisting is needed, the metal suspender with the lock catch at the lower end is penetrated into the four tubular embedded parts 7, the lock catch is adjusted to a locking state at the lower end after the metal suspender penetrates, and then the upper end of the metal suspender is fixed with an auxiliary hoisting facility, so that the hoisting is more stable, and the operability is stronger. Can combine together flexible hoist cable and rigid jib, also can adopt hoist cable or jib to hoist according to the condition, the nimble adaptation site work condition of hoist and mount mode.

Claims

1. The utility model provides a coincide floor of prefabricated building which characterized by: the steel bar net comprises an inner bar net which is composed of a plurality of longitudinal steel bars (4) and a plurality of transverse steel bars (6), wherein the longitudinal steel bars (4) and the transverse steel bars (6) are in contact at crossed positions and are welded and fixed; the steel bar truss structure is characterized by further comprising four metal trusses (3) which are arranged in parallel, wherein the metal trusses (3) are arranged at equal intervals and are parallel to the transverse steel bars (6); the metal truss (3) comprises top transverse ribs (3-1) positioned at the top and bottom transverse ribs (3-3) positioned at two sides of the bottom, corrugated bent ribs (3-2) are welded and fixed between two sides of the top transverse ribs (3-1) and the two bottom transverse ribs (3-3), and the bottom transverse ribs (3-3) are positioned below the longitudinal steel bars (4) and are welded and fixed with the longitudinal steel bars (4); a first corner reinforcing rib net (8), a second corner reinforcing rib net (9), a third corner reinforcing rib net (10) and a fourth corner reinforcing rib net (11) are respectively welded and fixed at the four corners of the inner rib net; concrete (2) is integrally poured on the outer sides of the inner rib nets and the corner reinforcing rib nets to form a floor slab body (1);

the floor slab comprises a floor slab body (1), wherein a plurality of tubular embedded parts (7) are arranged on the slab body of the floor slab body (1), the tubular embedded parts (7) are made of metal materials, anti-falling convex edges are arranged on the outer wall of the tubular embedded parts, the tubular embedded parts (7) are integrally cast and formed in the floor slab body (1), the middle parts of the tubular embedded parts and an inner rib net are welded and fixed, the upper ends of the tubular embedded parts and the inner rib net are flush with the groove bottoms of grooves (1-3) formed in the upper surface of the floor slab body (1), and.

2. A composite floor slab for prefabricated buildings as claimed in claim 1, wherein: the first corner reinforcing rib net (8), the second corner reinforcing rib net (9), the third corner reinforcing rib net (10) and the fourth corner reinforcing rib net (11) are identical in structure and comprise two parallel reinforcing transverse ribs and two parallel reinforcing longitudinal ribs, and the reinforcing transverse ribs and the reinforcing longitudinal ribs are crossed and fixed in the contact position in a welded mode.

3. A composite floor slab for prefabricated buildings as claimed in claim 1, wherein: a plurality of PVC lamp boxes (5) are further arranged on the lower surface of the plate body of the floor slab body (1), and the main body parts of the PVC lamp boxes (5) are integrally poured in the floor slab body (1).

4. A composite floor slab for prefabricated buildings as claimed in claim 1, wherein: and pouring concrete (2) to the middle position of each metal truss (3) to expose the middle upper part of the top transverse rib (3-1) and the corrugated bent rib (3-2) of each metal truss (3).

5. A composite floor slab for prefabricated buildings as claimed in claim 4, wherein: the corrugated bent rib (3-2) of the metal truss (3) is formed by bending the same steel bar, the tip positions of the top of the corrugated bent rib (3-2) are welded and fixed with the top transverse rib (3-1), and the tip positions of the bottom are welded and fixed with the inner side of the bottom transverse rib (3-3).

6. A composite floor slab for prefabricated buildings as claimed in claim 1, wherein: a first rectangular notch (1-1) and a second rectangular notch (1-2) are respectively arranged at two ends of the front edge of the floor slab body (1).

7. A composite floor slab for prefabricated buildings as claimed in claim 1, wherein: the number of the tubular embedded parts (7) is four, the two on the left side and the two on the right side are symmetrically arranged by the central line of the longitudinal steel bar (4) positioned in the middle position, and the two on the front side and the two on the rear side are symmetrically arranged by the central line of the transverse steel bar (6) positioned in the middle position.