CN1227425C - New steel frame floor structure - Google Patents

Abstract

The invention relates to a steel reinforced floor slab structure which mainly comprises a section steel beam of a steel framework, a section steel column, a plurality of secondary beams, connecting angle steel, a plurality of secondary beams, longitudinal steel bars and grid sheets, wherein the side wall of the section steel column is provided with a plurality of rib plates; the secondary beam is horizontally arranged and spanned among the section steel columns and consists of straight bars and batten plates; the connecting angle steel is connected with the secondary beam and the main steel rib of the cross beam, the secondary beam penetrates through each secondary beam, and two ends of the secondary beam are respectively connected with rib plates of the section steel column; the longitudinal steel bars are arranged between the secondary beams in a penetrating way; in addition, the grid sheets are paved on the surface of the composition structure, so that the construction is convenient and quick, the structural strength is improved, and the shock resistance is also improved.

Description

New steel frame floor structure

technical field

The invention relates to a steel frame floor structure.

Background technique

At present, the common structure of the existing floor A, as shown in Figure 1, has the following disadvantages:

1. Most of the existing floor structures use profiled steel plates (Deck) as the construction method, and among them, only shear nails and beams are fixed, and the steel at the interface between the two is not easy to be rust-proofed, so it has become the first choice for steel structure buildings. weak side.

2. Existing steel-reinforced concrete or steel-reinforced concrete floor slabs, due to the use of profiled steel plates for construction, block the continuity of the concrete at the interface of columns and beams, affecting the integrity of the structure, making the columns and beams at the places of maximum stress Beam joints do not have good and complete concrete protection and external force sharing. In addition to losing the original functions of steel-reinforced concrete and steel-reinforced concrete, the concrete covering the columns or beams is reduced to protect the steel from corrosion. Secondary function.

3. The floor of the profiled steel plate has a wavy and uneven ceiling, which is not in line with people's habits (people prefer a flat ceiling), so it needs to be trimmed and decorated, which not only wastes resources, but also reduces the height of the floor, which in turn affects the living effect. .

4. The interface between the existing profiled steel plate and concrete has poor bonding. The floor slab formed by pouring the profiled steel plate as a horizontal plate has different thickness due to the influence of the corrugated plate, and the configuration is a one-way slab. Therefore, it will cause cracks and water seepage in the future.

5. In the construction of existing profiled steel plates, the flow is easily hindered when pouring concrete, which affects the quality of concrete.

Contents of the invention

The purpose of the present invention is to provide a novel steel frame floor structure, which can be quickly assembled and erected, and forms a floor structure with better structural strength and shape integrity.

The purpose of the present invention is achieved in this way: a novel steel-framed floor structure is characterized in that it mainly includes profiled steel beams of steel frames, profiled steel columns, several secondary beams, connecting angle steel, several secondary beams, longitudinal steel bars and grids Among them, the side walls of the steel columns are provided with multiple ribs; the secondary beams are arranged horizontally across the steel columns, and the secondary beams are composed of straight strips and slabs; the connecting angle steel connects the secondary beams and the steel columns, and the secondary beams pass through The ribs pass through the secondary beams and connect the two ends of the steel columns; the longitudinal steel bars are penetrated and arranged between the secondary beams; in addition, the mesh sheets are laid on the surface of the aforementioned structure; the slab surface of the main steel frame is laid out with several shear forces. Nails; the shear nails are in the form of shear nails, and their rod ends are fused with the surface of the main steel frame to form a whole, and the outer end is provided with a joint part; the surface of the rib plate is provided with Assembling holes; the outer frame of the main steel frame of the shaped steel beam of the steel frame and the lower edge frame of the shaped steel column are provided with the shaped steel beam of the steel frame and the frame of the crossbeam. peripheral edge; the angle steel is assembled on the shear nail of the main steel frame of the steel beam, and the plate surface of the angle steel is provided with a mud flow hole; in addition, the angle steel framed at the lower edge of the beam is provided with an oblique flow guide surface; the There are tie pieces at the interval between two opposite ends of the angle steel of the frame, and a number of reinforcing steel bars are pierced inside the frame; every two straight bars of the secondary beam are opposite to each other, and the straight bars are grooves. Steel, or joint angle steel, or steel plate, and the flat surfaces of the straight strips are respectively arranged on the upper and lower sides of the floor slab, and there are many decorative panels on both sides of the two opposite straight strips. The decorative panels are trapezoidal in length. Lath-shaped or truss-shaped bending form; the connecting angle steel is Γ-shaped, and the sleeve frame is held on the secondary beam, and there is a groove on the vertical plate surface to penetrate and extend on the lower straight bar of the secondary beam, and On the horizontal and vertical slabs, there are respectively perforated shear nails corresponding to the main steel frame of the steel beam, and the slab below the angle steel groove is connected with another shear nail and tie. In addition, the horizontal The board surface is mounted on the straight bar above the secondary beam; the end of the secondary beam connected to the rib plate of the main steel frame of the steel beam is a joint end, and a joint hole is provided at the joint end, and the joint hole corresponds to The joint holes of the ribs on the main steel frame of the steel beam, and the secondary beam is composed of section steel or truss members; the two ends of the longitudinal reinforcement are supported on the surface of the section steel column, and the two ends of the longitudinal reinforcement are bent to set the anchoring bent ends of the reinforcement , the two ends of the anchoring bent end of the steel bar respectively protrude upward and downward on the outside of the shaped steel column; It is fixedly connected to the inner wall of the shaped steel column on both sides; the shear nails of the main steel frame are assembled with a number of transverse steel bars, one end of which penetrates the longitudinal steel bar and the secondary beam, and is bent as a hook part.

Due to the adoption of the above scheme: the construction is convenient and fast, the structural strength is improved, and at the same time, the shock resistance is also improved.

Description of drawings

Fig. 1 Schematic diagram of the existing steel frame slab structure;

Fig. 2 is a structural schematic diagram of the first embodiment of the present invention;

Fig. 3 is an exploded view of the connection between the secondary beam and the beam in the first embodiment of the present invention;

Fig. 4 is an exploded view of the connection between the secondary beam and the beam in the first embodiment of the present invention;

Fig. 5 is an exploded view of the use state of the suspension member according to the first embodiment of the present invention;

Fig. 6 is an exploded cross-sectional view of floor slabs and beams of the first embodiment of the present invention;

Fig. 7 is a schematic diagram of the secondary beam structure of the second embodiment of the present invention;

Fig. 8 is an exploded view of the connection angle steel structure of the second embodiment of the present invention;

Fig. 9 is an exploded view of the use state of the suspension member according to the second embodiment of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

First, as shown in Figure 2-4, the main structure of the first embodiment is as follows:

The steel frame structure of steel beams and steel columns 1 with steel beams as components, and a number of shear nails 10 have been pre-arranged on the surface of steel columns 1. The shear nails 10 can be used, such as the shear nail type In the state, at the end of the rod, the electric fusion point is used to form an integral body with the steel frame surface, and the outer end is provided with an assembly part 100 for assembly of other continuous elements. Secondly, on the side wall surface of the shaped steel column 1 Plate-shaped ribs 11 protruding outwards are fixed at some appropriate places of the steel frame, and assembly holes 110 are provided on the plate surface (as shown in Figure 4); in addition, the shaped steel beams and shaped steel The periphery of the column 1 and the exposed periphery of the crossbeam can be framed with a column and a beam frame 12. The frame 12 is provided with a number of angle steels 120, and the frame is located at the end of the outer frame of the steel column 1, and in the direction of the steel column 1 The angle steel 120 at the lower corner of the floor slab is an oblique diversion surface 122 (as shown in Figures 2, 3, and 6), which can help the diversion of concrete, and the plate surface of the angle steel 120 is screwed with the shear stud 10 Fixed, and mud flow holes can be preset on the surface of some angle steels 120, so that the concrete can flow smoothly. In addition, connecting parts 121 can be screwed at the appropriate distance between the opposite ends of the angle steels 120, and they can be formed in the frame. In the internal space of the type steel column (beam), a number of reinforcing steel bars I (as shown in Figure 6) are pierced, which can increase the hardness and strength of the auxiliary structure, and then cover and surround the beam and column frame, Increase earthquake resistance by strengthening the structural system;

Several horizontally arranged secondary beams 2, as shown in Figures 2 and 3, are arranged in the same direction and straddled between two steel columns 1, and two straight bars 20 with appropriate flat surfaces are arranged opposite to each other, and the straight bars 20 can be set as Channel steel, joint angle steel, steel plate or other steel materials with the same function, and their flat surfaces are respectively arranged on the upper and lower sides of the floor surface, so that the grid sheet 7 can be attached and fixed, and the two opposite straight bars 20 Side by side is provided with a lot of trim boards 21, and the trim boards 21 can be arranged in a strip shape to be in a ladder shape (as shown in Figure 3), or can be configured as a curved truss type (as shown in Figure 7 shown).

The connecting angle steel 3 is used for the support of the horizontal secondary beam 2 (as shown in Figures 2 and 3), and is fixedly connected with the steel column 1 in a Γ shape, and the horizontal and vertical plate surfaces are respectively provided with perforations 30 to The shear nail 10 corresponding to the main steel frame 1 is locked with the screw N, and a slot 31 (as shown in Figures 3 and 8 ) is opened under the other side of the vertical plate surface. The slot 31 can be arranged in the form of The shape of a gap or a perforation can be used for the assembly of the straight bar 20 under the horizontal secondary beam 2, and it can also be connected to the plate surface below the angle steel 3 through the groove 31, and can be connected with another shear stud 10 and the tie piece 121. Assembling, while the other upper straight bar 2 of the horizontal secondary beam 2 is mounted on the horizontal plate surface of the connecting angle steel 3;

A number of secondary beams 4 pass through the arranged horizontal secondary beams 2, and their two ends are respectively assembled between the opposite beams on the other two sides, as shown in Figures 2, 4 and 5, which correspond to the ribs fixed on the steel column 1 The end of the plate 11 is provided with an assembly end 40, and a corresponding assembly hole 400 is provided on the assembly end 40 for locking the screw N, and the secondary beam 4 can be a steel member, or Composition of truss type components;

Lay the longitudinal steel bar 5 to penetrate between the effectively arranged horizontal secondary beams 2, the two ends of the longitudinal steel bar 5 are supported on the slab surface of the shaped steel column 1, and the two ends of the longitudinal steel bar 5 are bent with the anchoring bent end 50 of the steel bar , the anchoring bent end 50 of the steel bar protrudes upwards and downwards on the outer side of the shaped steel column 1 (as shown in Figure 2), so that it can conveniently provide a lap joint with other end structural steels under the horizontal secondary beam 2 On the straight bar 20, there is additionally provided with a reinforcing bar insertion strip 51 to pass through (as shown in Figure 6), and the two ends of the insertion strip 51 can be arranged on the inner wall of the beam section steel on both sides for solid connection (such as welding, screwing or binding with the secondary beam). );

A number of transverse steel bars 6, as shown in Figure 6, are assembled with the shear studs 10 on the shaped steel column 1, one end of which penetrates into the floor structure and the horizontal secondary beam 2, and hooks 60 are provided for pre-bending, thus, It can strengthen the gripping effect of the floor steel structure on the concrete;

The mesh sheet 7 is laid on the aforementioned structural surface, and the mesh sealing element 70 is fixed to the structural steel frame for use as the outer mesh formwork during grouting, which can eliminate the need for binding, nailing the formwork and removing the formwork after the formation of the formwork. Trouble.

When assembling and lapping, first build the main body of the structural steel frame with the section steel as the section steel column 1, and temporarily set up some temporary suspension components J (such as welded steel bars or screwed steel plates, etc.) at the side end of one of the beams, Secondly, with the horizontal secondary beam 2, the two ends are threaded and connected to the angle steel 6, and then hung on the temporary suspension component J assembled on the side end of the beam, as shown in Figure 6, and then the secondary beam 4 is passed through and erected on the suspension component J The secondary beams 2 arranged neatly on the top, and the joint ends 40 thereof are correspondingly attached to the ribs 11 on the side plate surface of the steel column 1, so that the joint holes 400, 110 are aligned with each other, and screwed by screws N , as shown in Figures 2 and 4, the horizontal secondary beams 2 suspended on the temporary suspension member J are arranged on the secondary beams 4 according to the design (as shown in Figure 2), and the two ends of the horizontal secondary beams 2 are connected by angle steel 3 and The shear nails 10 on the steel column 1 are fixed, and the frame 12 is set on the vertical frame frame edge of the steel column 1 and the lower edge of the beam, and the connecting system 121 of the frame 12 is connected to the angle steel 120 and the opposite connection Between the slabs of the angle steel 3 (as shown in Figure 6), the longitudinal steel bar 5 is laid through the horizontal secondary beam 2 and laid on the steel column 1, so that the anchoring bent ends 50 of the steel bars at both ends of the longitudinal steel bar 5 are respectively arranged on the steel column 1 (as shown in Fig. 2), in addition, inserting bars 51 are installed on the straight bar 20 under the horizontal secondary beam 2 to strengthen the structure, and the horizontal steel bars 6 are combined with the shear nails 10 on the inside of the shaped steel column 1 Then, make one end of the hook portion 60 extend into the horizontal secondary beam 2 structure (as shown in Figure 6), lay the grid sheet 7 on the surface of the composition structure, and seal it with the sealing element 70, and then the concrete can be carried out. After pouring, when the concrete is solidified, the surface of the floor can be painted (or other surface decoration) for modification.

In addition, regarding the second embodiment when the secondary beam 2 is assembled, as shown in FIG. A set of connecting holes 400 of the joint end 40 of the steel column 1 is temporarily screwed to a set of connecting holes 110 of the rib plate 11 of the steel column 1 for false positioning, so that the secondary beam 4 can use the temporarily screwed joint as an axis to rotate upward , secondly, hook the suspension component J at the bottom of the secondary beam 4 by means of the suspension device C, so that the secondary beam 4 is suspended in an inclined shape, and then the horizontal secondary beam 2 is put through the suspension components J side by side, and the secondary beam 4 is leveled and placed After the assembly end 40 of the secondary beam 4 is assembled and fixed with the rib 11 on the side plate surface of the steel column 1, the horizontal secondary beams 2 are arranged on the secondary beam 4 according to a predetermined distance (as shown in Figure 2), and the two By connecting the angle steel 3 and the shear nail 10 on the steel column 1, the end can be fixed to complete the threading of the secondary beam.

Advantage and effect of the present utility model are as follows:

1. The pre-planted shear studs of the steel column can provide more convenient and quick connection for the construction of other connecting parts of the connecting group, and make the floor and the beam integrally fixed, thereby improving the structural strength.

2. Column and beam steel columns and their ribs, structural frame, horizontal secondary beams, secondary beams, etc. can all be processed and produced in the factory. In addition to fast construction, stable quality and high efficiency, it can also achieve the goal of automated production.

3. Arrange nails on the shaped steel columns to facilitate the fastening of screwed elements and column-beam structures, horizontal secondary beams and other reinforcing steel materials. The structure is formed as a whole, which can perfectly consolidate the concrete and column-beam structures and floor structures. Combine and improve the shortcomings of the poor interface between the existing profiled steel plate and concrete, and also effectively improve the shock resistance of the structure.

4. The longitudinal steel bars in the floor structure are not willing to bend upwards and downwards. The anchoring bent ends of the steel bars can also provide convenience for lap joints with other wall structures, making the structure more practical for grouping.

5. The formwork is replaced by the grid sheet, and the sealing element is fixed to the steel frame, so that the steel frame, the secondary beam and the grid sheet are connected as a whole, and because the grid sheet has high toughness, the grid sheet The concrete inside can be well restrained, and the concrete is not easy to burst and fragment during earthquakes or collisions.

6. Using mesh sheets instead of formwork or profiled steel plates, in addition to easy installation, there is no formwork debris or debris on the formwork surface that affects the quality of the concrete interface, and other auxiliary construction equipment such as supports, ties, and suspenders are not used, increasing Large working space and no need for a large space to store formwork materials can ensure a clean environment on the construction site, and there is no anti-environmental behavior that wastes forest resources due to excessive production of wooden formwork.

7. The overall floor structure is mainly composed of shaped steel columns, secondary beams and truss-type secondary beams, supplemented by steel bars and concrete. The main structure is firstly produced in the factory, followed by assembly and grouting on the construction site, and grid sheets The structure of the outer mold, in addition to reliable joints, can also reduce the construction interface and the demand for construction personnel, so the management is easy and the project quality is relatively guaranteed.

8. The formwork or profiled steel plate is replaced by the grid sheet, the air bubbles of the poured concrete can overflow from the holes in the grid, and the concrete slurry can also fill the grid holes, without the traditional formwork or profiled steel plate that is easy to grow Honeycomb situation, and after the concrete is solidified, there is no need to remove the troublesome formwork; and the flatness of the floor surface is good, which is easy for the builder to modify the appearance, and the rough grid interface helps stabilize the plastered mud, making the wall difficult to crack .

9. After the finished floor is decorated, the ceiling is the same as the flat ceiling of the traditional concrete structure, with a flat ceiling surface. In addition to meeting people's habitual requirements, it can also improve the shortcomings of the profiled steel plate floor.

Claims (13)

1, a kind of structure of floor slab with steel skeleton is characterized in that: it mainly comprises section steel beam, steel column, some secondary beams, connecting angle, some secondary beams, longitudinal reinforcement and the mesh flake of steel frame, and wherein, the steel column sidewall is provided with a plurality of floors; Secondary beam horizontally bridges between steel column, and this secondary beam is made of vertical bar and batten plate; Connecting angle connects secondary beam and steel column, and secondary beam passes the floor of each secondary beam and its two ends difference connecting-type steel column; The longitudinal reinforcement break-through is arranged between secondary beam; Mesh flake is laid on the surface of aforementioned component structure in addition.

2, by the described a kind of structure of floor slab with steel skeleton of claim 1, it is characterized in that: the plate face of described steel column is laid some WELDING STUDS.

3, by the described a kind of structure of floor slab with steel skeleton of claim 2, it is characterized in that: described WELDING STUDS is the WELDING STUDS kenel, form one at its rod end and steel column plate face blow, and it is provided with group connecting part towards outboard end.

4, by the described a kind of structure of floor slab with steel skeleton of claim 2, it is characterized in that: the plate face of described floor is provided with joining hole.

5, by the described a kind of structure of floor slab with steel skeleton of claim 1, it is characterized in that: the steel column periphery of the section steel beam of described steel frame and steel column lower edge frame are provided with the section steel beam of steel frame, the bag frame of crossbeam, and this bag frame is provided with some angle steel and frame is located at the steel column periphery.

6, by the described a kind of structure of floor slab with steel skeleton of claim 5, it is characterized in that: described angle steel winding is provided with mud oar through flow hole on the WELDING STUDS of steel column and at the plate face of angle steel, in addition, the angle steel that frame is located at the crossbeam lower edge is provided with oblique guide face.

7, by the described a kind of structure of floor slab with steel skeleton of claim 5, it is characterized in that: it is part that the angle steel of described bag frame holds the interval, limit to be provided with in twos in opposite directions, wears some reinforcement steel bars in described bag frame inside again.

8, by the described a kind of structure of floor slab with steel skeleton of claim 1, it is characterized in that: per two vertical bars of described secondary beam are in opposite directions to establishing, this vertical bar is channel-section steel or joint angle or steel plate, and the platen surface of vertical bar is separately positioned on the upper and lower of floor plates face, and in opposite directions the vertical bar both sides of establishing are provided with many batten plates two again, this batten plate is trapezoidal long strip-board shape or truss type curve form.

9, by the described a kind of structure of floor slab with steel skeleton of claim 1, it is characterized in that: described connecting angle is the Γ shape and wears that frame is held on the secondary beam and be provided with at its vertical panel face to be worn groove and stretches through on the following vertical bar at secondary beam, on its level, vertical panel face, be respectively equipped with the WELDING STUDS of perforation and corresponding steel column again, connecting angle is worn groove lower plate face and another WELDING STUDS and is that part is connected with group again, in addition, the level board face of connecting angle mounts on vertical bar above the secondary beam.

10, by the described a kind of structure of floor slab with steel skeleton of claim 1, it is characterized in that: the end that the floor of described secondary beam and steel column connects is the connection terminal, and be provided with joining hole in this connection terminal, this joining hole is corresponding to the joining hole of the floor on the steel column, and secondary beam is made of shaped steel or trussmember in addition.

11, connect the described a kind of structure of floor slab with steel skeleton of claim 1, it is characterized in that: described longitudinal reinforcement two ends frame is held on the steel column plate face, the curved anchoring of establishing reinforcing bar in longitudinal reinforcement two ends bends up end again, and the anchoring of this reinforcing bar bends up the end two ends and protrudes out up and down in the steel column outside respectively.

12, by the described a kind of structure of floor slab with steel skeleton of claim 1, it is characterized in that: described longitudinal reinforcement is provided with the reinforcing bar cutting and interts on the vertical bar below the secondary beam, and these cutting two ends and both sides steel column inwall are affixed.

13, by the described a kind of structure of floor slab with steel skeleton of claim 1, it is characterized in that: the some transverse reinforcements of winding on the WELDING STUDS of described steel column, one end stretch through in longitudinal reinforcement and the secondary beam and the curved hook part that is made as.

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