CN208009729U - Assembled horse tooth trough overlap edge-punching sheet metal floorslab with bars - Google Patents

Abstract

The utility model belongs to assembled floor manufacture technology field in structural engineering, and in particular to a kind of assembled horse tooth trough overlap edge-punching sheet metal floorslab with bars.Shaped steel, punching sheet metal are welded in the utility model, floor steel skeleton is formed, anchor hole and horse tooth trough construction is made in edges of boards, pours floorslab concrete, I-steel position pours rib of slab concrete, and a kind of assembled horse tooth trough overlap edge-punching sheet metal floorslab with bars is consequently formed.Compared with traditional assembled floor, the horse tooth trough of floor and anchor hole construction increase the bonding strength between floor and Vierendeel girder and between floor and floor in the utility model, the globality of floor is enhanced, to effectively transmit horizontal force, increases the shock resistance in house, simultaneously, element factory produces, assembled in situ, construction is simple, it is useful in the low multilayer rural housing structure in villages and small towns and promotes and applies, be conducive to push China's new countryside construction, the industrialized paces of novel city-building.

Description

Prefabricated horse-toothed lap edge-perforated thin steel plate with ribbed floor

Technical field:

The utility model belongs to the technical field of fabrication of assembled floor slabs in building structure engineering, and in particular relates to an assembled horse-toothed lap joint-perforated thin steel plate ribbed floor and a method thereof.

Background technique:

The construction of new rural housing in our country currently has problems such as a huge number of construction tasks, most of the existing housing is self-built, low or even no earthquake resistance, etc., which has become a major problem in the construction of new rural areas in our country. Prefabricated buildings have the characteristics of green buildings such as industrialized production, standardized production, and ex situ reconstruction. In addition, they have the advantages of short construction period and labor saving. They have broad development prospects and application value in new rural buildings. With the promotion of the country and the government and the advancement of construction technology, the production and design of prefabricated structural components will also undergo major changes. Among them, the floor components occupy a very important proportion. From the perspective of force, the floor in the building structure is a horizontal force-bearing component, and the floor transmits various loads on it to the vertical force-bearing components. To form a space force system to increase the stability of the structure, the floor slab must have sufficient rigidity and strength; from the perspective of project cost, the concrete floor slab occupies a considerable proportion in the amount and cost of the entire building material.

However, from the perspective of force, the prefabricated floor slabs used in modular prefabricated structures often have discontinuous plane stiffness due to the existence of splicing slab seams, which affects the overall function of the floor slab. Usually, the so-called monolithic floor slab has a relatively large plane stiffness, which can transmit horizontal force to each vertical lateral force-resisting member, and work together with these vertical lateral-force-resisting members, especially when the vertical lateral force-resisting members are unevenly distributed. When the structure is uniform, the layout is complex, or the horizontal deformation characteristics of the lateral force-resisting members are different, the whole structure must rely on the floor to make the lateral-force-resisting members work together. The existence of splicing seams in prefabricated floor slabs just prevents the function of the slab from being fully and effectively exerted; from the perspective of project cost, the existing prefabricated floor slab modules are small, and there are many post-processing joints, which is time-consuming and labor-intensive, increasing the cost .

Invention content:

The utility model provides a prefabricated horse-tooth bridge lap-perforated thin steel plate ribbed floor and its method, which provides a kind of space between the slab and the frame beam, and between the slab and the slab for the low-story frame structure houses in villages and towns. The method of prefabricated floor slabs with reliable connection measures is to solve the problem that the current prefabricated floor slabs are weakly connected and poor in integrity, which leads to insufficient transmission of horizontal forces between vertical lateral force-resistant components. At the same time, the on-site assembly and construction of the components are simple, and the anti-seismic effect is good, so it is suitable for widespread promotion.

In order to achieve the above object, the utility model adopts the following technical solutions:

Prefabricated buttress lap joint-perforated thin steel plate ribbed slab, including profile steel (1), round steel pipe (2), punched thin steel plate (3), connecting studs (4), and buttress (5) , reserved anchor holes (6), slab ribs (7), floor concrete (8), construction joints (9), frame beams (10) and frame columns (11); the punched thin steel plate (3) is The steel plate with a thickness not exceeding 5mm is punched out by a punching machine through a die. Welding to form the floor ribs, weld the round steel pipe (2) at the end of the section steel (1), place the punched thin steel plate (3) on the bottom of the section steel (1), and weld and fix it at the contact position with the bottom of the section steel (1), so as to form the floor Steel skeleton; pouring floor concrete (8), during pouring, punched thin steel plate (3) is poured in the middle part of floor concrete (8), steel plate (1) position is poured slab rib (7) concrete, and slab edge is poured into horse teeth ( 5) Shape, Anchor hole (6) is reserved at the convex position of the horse-toothed frame. The position of the anchor hole corresponds to the position of the connecting stud (4) on the frame beam (10). After the concrete is cured, an assembled horse-toothed frame is formed. - Punched thin steel plate ribbed floor; reserve anchor holes (6) during assembly, insert the connecting studs (4) on the frame beam (10) into the holes, pour grout into the holes, and place the connecting studs (4) ) is anchored on the floor to realize the connection between the floor and the frame beam (10); the construction joints (9) between the edges of adjacent floor slabs are filled with grouting materials, concrete or mortar, and the adjacent floors are poured together to realize the connection of adjacent floors .

Said assembled horse-toothed-jaw lap-perforated thin-steel ribbed floor is characterized in that:

Described shaped steel (1) comprises I-beam, H-shaped steel, channel steel, angle steel; According to the shaped steel vertically welded according to the size of the floor, each vertical direction is provided with at least one shaped steel (1); when the floor concrete (8) is poured, the shaped steel ( 1) The bottom and lower steel sections are poured in the floor concrete (8), and the rest of the upper steel sections are poured in the slab rib (7) concrete.

The diameter of the round steel pipe (2) is the same as that of the reserved anchor hole (6), and the height is the sum of the thickness of the floor concrete (8) and the height of the slab rib (7). During assembly, the connecting studs (4) on the frame beam (10) are sleeved, filled with pouring grout, and the floor slab and the frame beam (10) are reliably connected together.

The punched thin steel plate (3) is a steel plate with a circular hole, a square hole or a rectangular hole punched out by a die through a punching machine, and is laid in a single piece in the floor concrete (8); the punched thin steel plate of the required size for the floor slab (3), weld the reinforcing bar bent into the shape of the horse-toothed frame at the position corresponding to the floor-shaped horse-toothed frame (5) at the edge of the punched thin steel plate (3). The perforated thin steel plate (3) plays the role of reinforcement in the concrete, but it is easier to construct than the configuration of steel bars. It has the characteristics of strong integrity, uniform mesh, easy processing, and low cost, which improves the plane of the wall panel. The outer rigidity improves the anti-seismic ability of the wall panel.

The connecting stud (4) is fixed on the frame beam (10), and when the frame beam (10) is a reinforced concrete beam, it is pre-embedded on the frame beam (10); when the frame beam (10) is a steel pipe concrete beam or When the shaped steel beam is used, it is pre-welded on the frame beam (10); the exposed height of the connecting stud (4) on the frame beam (10) is less than the pouring thickness of the floor concrete (8).

The horse-toothed rafts (5) are arranged along the edge of the slab, and the convex and concave rafts have the same shape, both of which are trapezoidal. The horizontal distance between the bottom edge of the horse teeth (5) and the lap edge of the frame beam (10) (ie the minimum lap length of the floor slab on the frame beam) is not less than 30mm.

The reserved anchor hole (6) is a circular hole with a diameter of not less than 40mm, and is arranged in all the horse-toothed (5) protrusions along the edge of the floor slab. The reserved anchor holes (6) are filled, and the connecting studs (4) are anchored on the floor to realize reliable connection between the floor and the frame beam (10), so that the floor and the frame can effectively transmit stress.

The slab ribs (7) are formed after the section steel (1) is poured with concrete, and the height and width of the slab ribs (7) are not less than 40mm.

The pouring thickness of the floor concrete (8) is 40mm-80mm, and the concrete strength grade is C30-C60; the concrete (5) is ordinary concrete, recycled concrete or high-performance concrete with different recycled coarse aggregate content. Recycled concrete is prepared by crushing, cleaning and grading waste concrete blocks after demolition of old buildings. Recycled concrete is used to realize the principle of recycling and reducing waste concrete, which can play a role The role of protecting the environment and saving resources has significant social benefits and promotes the sustainable development of the country. According to engineering needs, high-performance concrete with properties such as crack resistance and corrosion resistance can be configured.

The construction joints (9) are gaps between adjacent floor slabs, and the width is not less than 30mm; the strength of the grouting material, concrete or mortar used for filling the construction joints (9) is not lower than that of the floor concrete (8). The filling material has high strength and can strengthen the joint area connection of adjacent floor slabs and frame beams (10).

Compared with the prior art, the utility model has the following advantages of the assembled horse-toothed bridge lap-perforated thin steel plate with ribs:

(1) The stud connection has high shear strength. The floor slab reserves anchor holes at the corresponding positions of the studs and fills them with grouting material after the floor slab is assembled. The floor slab and frame beams are reliably anchored together to form a whole, which is beneficial The transfer of horizontal forces between the floor slab and vertically loaded members.

(2) The floor slab has a beam-lapped edge horse-toothed design form, so that adjacent floors have sufficient lap length at the frame beam position, and at the same time, the construction joints between the horse-toed woods increase the filling of floor slabs and grouting materials The contact area of the material makes the adjacent floor slabs more reliably connected with the filling material to form a whole, thereby increasing the integrity of the adjacent floor slabs.

(3) The setting of slab ribs can significantly improve the bending stiffness and out-of-plane stiffness of the floor slab. At the same time, a part of the profile steel inside the slab rib is located in the floor slab, which strengthens the connection between the slab rib and the floor slab, and facilitates the slab rib to play the role of the floor stiffener.

(4) The perforated thin steel plate plays the role of reinforcement in the concrete floor, but it is easier to construct than the configuration of steel bars, easy to locate, has the characteristics of strong integrity, uniform mesh, and easy processing, which improves the out-of-plane rigidity of the wall panel , Improve the seismic capacity of the wall panel. At the same time, the perforated thin steel plate is laid in a single piece in the floor, which significantly reduces the amount of steel used for the components, and the cost is low and the cost is reduced.

(5) The floor slab in the utility model is produced in a factory, and the production quality of the components is guaranteed. The thickness of the floor slab is relatively small, the weight is light, the cost is low, and the site is convenient for lifting and installation. At the same time, the utility model is designed for large modular floor slabs, only the construction joints and the reserved anchor hole filling materials are poured afterward, the construction is simple and convenient, and the construction time is greatly shortened. It is helpful to quickly promote the pace of new rural construction with a large amount and a wide range, and realize the goals of housing industrialization and construction industrialization.

Description of drawings:

Figure 1 is a partial detailed drawing of the assembly structure of the prefabricated horse-toothed bridge lap-perforated thin steel plate ribbed floor slab;

Fig. 2 is a schematic diagram of the steel skeleton of the assembled horse-toothed-cha lap-perforated thin steel plate ribbed floor;

Fig. 3 is a schematic diagram of a prefabricated horse-tooth bridge lap-perforated thin steel plate with ribs;

Fig. 4 is a schematic diagram of connecting peg positioning;

Fig. 5 is an assembly effect diagram of the assembled horse-toothed bridge lap edge-perforated thin steel plate ribbed floor.

In the figure: 1-shaped steel; 2-round steel pipe; 3-punched thin steel plate; 4-connecting studs; Construction joint; 10-frame beam; 11-frame column.

Detailed ways:

In the invention, the assembly-type horse-tooth bridge lap joint edge-punched thin steel plate ribbed floor slab, in conjunction with accompanying drawings 1 to 5, illustrates the utility model production method as follows:

The first step: vertical welding of section steel to form floor ribs, and the end of section steel is welded with round steel pipe;

Step 2: Make punched thin steel plates, weld the steel bars bent into the shape of horse teeth, place the punched thin steel plates at the bottom of the section steel, and weld and fix them with the section steel, so far, the floor steel skeleton is formed;

Step 3: Concrete is poured with the formwork, the slab side formwork is formed to form a horse-toothed frame, the floor concrete is poured on the surface of the slab, and the slab-rib concrete is poured on the section steel position, the position of the horse-toothed frame is reserved to correspond to the position of the frame beam connection bolts When pouring, the perforated thin steel plate is poured in the middle of the floor concrete, the bottom and lower section of the steel section are poured in the floor concrete, and the rest of the section steel section in the upper part is poured in the ribbed concrete; after the concrete is cured, an assembled horse-tooth bridge is formed Edge-punched sheet steel ribbed floor;

Step 4: Assembling at the construction site, the frame beams are pre-embedded or pre-welded with connecting studs, the floor is placed on the frame beams, and the connecting studs are respectively placed in the corresponding anchor holes of the floor;

Step 5: Fill the connection anchor holes and the construction joints between the adjacent floors to realize the connection between the floor and the frame beam and the adjacent floors. At this point, the adjacent floors and frame beams are connected into a whole.

The above is a typical implementation case of the utility model, but the implementation of the utility model is not limited thereto. The selection of various structural dimensions and materials listed in the utility model can be selected according to actual needs, and will not be listed one by one here.

Claims (9)

1. The prefabricated horse-tooth-chassis lap-perforated thin steel plate ribbed floor is characterized in that it includes section steel (1), round steel pipe (2), punched thin steel plate (3), connecting studs (4), Buttercup (5), reserved anchor hole (6), slab rib (7), floor concrete (8), construction joint (9), frame beam (10) and frame column (11); described punching The thin steel plate (3) is a steel plate that punches out holes through a punching machine through a die on a steel plate with a thickness not exceeding 5mm. The profiled steel (1) is welded vertically to form the floor ribs, the end of the profiled steel (1) is welded to the round steel pipe (2), and the punched thin steel plate (3) is placed at the bottom of the profiled steel (1) and is in contact with the bottom of the profiled steel (1) Welding and fixing, so far the steel skeleton of the floor slab is formed; pouring the floor concrete (8), when pouring, the punched thin steel plate (3) is poured in the middle of the floor concrete (8), and the slab rib (7) concrete is poured at the position of the section steel (1), and the slab edge Pouring into the shape of a horse-toothed frame (5), reserve anchor holes (6) at the convex positions of the horse-toothed frame, and the positions of the anchor holes correspond to the positions of the connecting studs (4) on the frame beam (10), and the assembled concrete is formed after curing. Lap edge of horse teeth-perforated thin steel plate ribbed floor; reserve anchor holes (6) during assembly, insert connecting studs (4) on the frame beam (10) into the holes, and pour grout into the holes, Anchor the connecting studs (4) on the floor to realize the connection between the floor and the frame beam (10); the construction joints (9) between the edges of adjacent floor slabs are filled with grouting materials, concrete or mortar, and the adjacent floors are poured together , to realize the connection of adjacent floors. 2. The prefabricated horse-tooth bridge lap-perforated thin steel plate ribbed floor slab according to claim 1, characterized in that: the section steel (1) includes I-beam, H-beam, channel steel or angle steel; According to the size of the floor slab welded vertically, at least one section steel (1) is provided in each vertical direction; when the floor concrete (8) is poured, the bottom and lower sections of the section steel (1) are poured in the floor concrete (8), and the rest of the top sections of the section steel Pouring in the slab rib (7) concrete. 3. The prefabricated horse-toothed bridge lap-perforated thin steel plate ribbed floor slab according to claim 1, characterized in that: the diameter of the round steel pipe (2) is the same as that of the reserved anchor hole (6), The height is the sum of the thickness of the floor concrete (8) and the height of the slab ribs (7). 4. The prefabricated horse-tooth bridge lapping edge-punched thin steel plate ribbed floor slab according to claim 1, characterized in that: the punched thin steel plate (3) is punched out of a circular hole by a die through a punching machine , square holes or rectangular holes are laid monolithically in the floor concrete (8); the perforated thin steel plate (3) of the size required for the floor slab is made, and the corresponding floor horse teeth ( 5) At the position, weld the steel bars bent into the shape of horse teeth. 5. The prefabricated horse-tooth bridge lap-perforated thin-steel ribbed floor slab according to claim 1, characterized in that: the connecting pegs (4) are fixed on the frame beam (10), and the frame beam (10) is pre-embedded on the frame beam (10) when it is a reinforced concrete beam; ) exposed height on the frame beam (10) is less than the pouring thickness of the floor concrete (8). 6. The prefabricated horse-toothed raft lapped edge-punched thin steel plate with ribs floor slab according to claim 1, characterized in that: said horse-toothed raft (5) is arranged along the edge of the board, and has a convex and concave shape The same, both are trapezoidal, and the position of the convex frame corresponds to the position of the concave frame on the adjacent slab edge; The horizontal distance, that is, the minimum lap length of the floor slab on the frame beam is not less than 30mm. 7. The prefabricated buttress lapped edge-punched thin steel plate ribbed floor slab according to claim 1, characterized in that: the reserved anchor hole (6) is a circular hole with a diameter of not less than 40mm, Arrange in all horse teeth cha (5) convex chasms along the floor slab limit. 8. The prefabricated horse-toothed bridge lap-perforated thin steel plate ribbed floor according to claim 1, characterized in that: the rib (7) is formed after concrete is poured from the section steel (1), and the rib The height and width of (7) are not less than 40mm; the pouring thickness of the floor concrete (8) is 40mm-80mm, and the concrete strength grade is C30-C60. 9. The prefabricated horse-toothed edge-punched thin steel plate ribbed floor according to claim 1, characterized in that: the construction joint (9) is the gap between the adjacent floor horse-toothed, the width of which is Not less than 30mm; the strength of the grouting material, concrete or mortar used for filling the construction joints (9) is not lower than that of the floor concrete (8).