CN217268230U - Steel bar truss floor support plate structure in steel structure frame - Google Patents

Abstract

The utility model discloses a steel bar truss building carrier plate structure among steel structural framework, including steel bar truss building carrier plate (1), girder steel (2), steel layer board (3), stiffener (4), steel baffle (5), spacing steel sheet (6), additional reinforcing bar (7), distribution reinforcement (8), peg (9), concrete (10), steel column (11) and L shaped steel (12). Compared with the prior art, the utility model discloses can the floor elevation of accurate control "falling the board" construction, structural connection is reliable, does benefit to the transmission load, and it is swift to have no support construction speed, saves man-hour and material to effectively guarantee construction quality and leakproofness, leak when preventing concrete placement and starch.

Description

Steel bar truss building carrier plate structure among steel structural framework

Technical Field

The utility model relates to a building engineering's major structure construction technical field especially relates to a steel bar truss building carrier plate structure among steel structural framework.

Background

Along with the continuous popularization and application of green construction technology, in the steel structural framework of building engineering, because the requirement of prefabricated assembly rate constantly improves, the floor preferentially adopts unsupported steel bar truss floor carrier plate, and is as an organic whole by steel bar truss and galvanized steel sheet (die block) welding in the mill promptly, prefabricates into steel bar truss floor carrier plate, then transports it to the scene, and the installation is fixed on the girder steel, and concreting can form the floor of steel frame construction. In the construction process, a formwork and an installation support are not needed, so that the aims of saving working hours and materials are fulfilled.

However, in some large-span building spaces, as the unsupported span increases, the thickness of the floor bearing plate will need to increase correspondingly, for example, the diameter of the upper chord steel bar of the steel bar truss is 12mm, the diameter of the lower chord steel bar of the steel bar truss is 10mm, and when the simply supported unsupported span reaches 4.8m or the continuous unsupported span reaches 5.2m, the thickness of the steel bar truss floor bearing plate can reach 250 mm. The increase of the plate thickness, i.e. the total thickness of the structural layers, causes the reduction of the clearance height of the floor, thereby affecting the use function. Thus, in some steel structural framing engineering practices, a need has arisen to reduce the overall thickness of the structural layer. The concrete way is that, through the installation elevation of adjustment steel bar truss building carrier plate, make the bottom elevation of building carrier plate be less than the top elevation of steel construction girder steel, the construction of "board falls promptly. In addition, building spaces such as a building toilet and a water pump equipment room also have construction areas needing 'plate lowering'. For the 'plate falling' construction of a steel bar truss floor structure, the problems that the floor elevation precision control difficulty is high, the temporary support for construction needs to be added, the structural installation quality defect is easy to occur and the like exist on site.

In the prior art, chinese patent publication No. CN110284716B discloses a construction method of a lifting plate node structure of a steel bar truss floor support plate, wherein the technical scheme fails to fully consider the actual situations that may occur in the processing and construction processes: gaps are reserved between the bottom die and the supporting plate and between the bottom die and the steel beam flange plate, and due to the existence of machining errors and installation errors, the gap value is difficult to control, so that the gap is easy to be overlarge, and the slurry leakage phenomenon is caused in the concrete pouring process; the steel beam section height of the large-span steel structure frame is usually large (possibly reaching 500mm-800 mm), and due to the requirement of 'plate descending' for installing the steel bar truss floor bearing plate, the distance between the stiffening plates is dense (usually 400mm-500 mm), so the stiffening plates do not need to fill the space between the upper flange plate and the lower flange plate of the whole steel beam, the force transmission requirement is preferably met, and unnecessary material waste is avoided; when the distance between the steel supporting plate and the upper flange plate of the steel beam is small, concrete in the cavity is difficult to vibrate closely, so that the width of the steel supporting plate is not required to be too large and welded to a web plate of the steel beam, a steel partition plate is arranged on the outer side of the upper flange plate of the steel beam and connected with the steel supporting plate, the concrete is prevented from flowing inwards the cavity, and the material waste of the steel supporting plate and the concrete is reduced; the elevation difference between the upper chord steel bar of the steel bar truss floor bearing plate and the steel beam upper wing edge plate is an important index for accurately determining 'plate lowering' construction, the index is controlled by the existing patent to have no directness, and can be influenced by the processing and manufacturing errors of the steel bar truss, the deformation errors generated in the transportation process, the welding and mounting errors of the steel supporting plate, and the processing and mounting errors of the stiffening plate, and belongs to the elevation difference between the steel bar truss floor bearing plate and the steel supporting plate under indirect control, and the more intermediate links, the more difficulty in ensuring the 'accuracy' of the steel bar truss floor bearing plate.

Therefore, the technical personnel in the field are urgently needed to research the steel bar truss floor bearing plate structure in the steel structure frame, and the high-quality construction of the 'plate falling' part of the building space is met: not only must the floor support plate be installed quickly and the elevation be controlled accurately, but also the construction quality is guaranteed to be safe and reliable and the concrete pouring is not leaked.

Disclosure of Invention

The utility model aims at solving the not enough of existence among the above-mentioned prior art, thereby provide a steel bar truss building carrier plate structure among the purpose steel structural framework that the elevation difference between direct control upper chord reinforcing bar and the girder steel upper limb listrium reaches accurate control "board" elevation falls, convenient site operation, the quick accurate positioning of being convenient for.

The utility model provides a technical scheme as follows: a steel bar truss floor bearing plate structure in a steel structure frame comprises a steel beam, a steel bar truss floor bearing plate fixedly assembled on the steel beam and concrete poured on the steel bar truss floor bearing plate; the steel bar truss floor support plate comprises a bottom die and a steel bar truss arranged on the bottom die, the steel bar truss comprises upper chord steel bars and two lower chord steel bars arranged opposite to the upper chord steel bars, each lower chord steel bar and the upper chord steel bar are respectively connected with a group of web member steel bars, and the upper end surface of the bottom die is provided with end part vertical steel bars and end part horizontal steel bars;

the steel beam comprises an upper flange plate, a web plate fixedly connected with the upper flange plate and a lower flange plate fixedly connected with the web plate;

the steel column also comprises stiffening plates, additional steel bars, distributed steel bars, studs and steel columns; the stiffening plate is fixedly connected with the upper flange plate and the web plate of the steel beam;

the additional steel bars are bound and connected with upper chord steel bars of the steel bar truss floor bearing plate; the distributed steel bars are bound and connected with upper chord steel bars and/or lower chord steel bars of the steel bar truss floor bearing plate;

the stud penetrates through the bottom die and is fixedly connected with the steel beam or the steel supporting plate; the upper end face of the upper flange plate of the steel beam is provided with a limiting steel plate, and the end part of an upper chord steel bar of the steel bar truss floor bearing plate is arranged on the limiting steel plate; a steel supporting plate is arranged on one side wall of the stiffening plate, and a steel partition plate is arranged on the other side wall of the stiffening plate; the upper end of the steel clapboard is fixedly connected with the bottom surface of the upper flange plate of the steel beam, and the lower end of the steel clapboard is fixedly connected with the upper end surface of the steel supporting plate;

the bottom die of the steel bar truss floor support plate is arranged on the upper flange plate of the steel supporting plate or the steel beam; the steel columns are arranged at the joints of the steel beams which are perpendicular to each other.

Further, the bottom die is a galvanized steel plate, and the thickness of the bottom die is 0.5-0.6 mm; and a convex locking notch is formed in the end part of one side of the bottom die, and a concave locking notch is formed in the end part of the other side of the bottom die.

Furthermore, the diameter range of the upper chord steel bar is 10-12 mm; the diameter range of the web member steel bar is 5.5-7 mm; the diameter range of the lower chord steel bar is 8-10 mm; the diameter range of the end vertical steel bar is 10-12 mm; the diameter range of the horizontal steel bar at the end part is 8-10 mm.

Further, the width of the steel supporting plate is 75-80mm, and the thickness of the steel supporting plate is 8-10 mm.

Furthermore, the stiffening plates are arranged at equal intervals along the length direction of the steel beam, the arrangement distance is 400-500mm, and the thickness of the stiffening plates is 6-8 mm.

Further, the thickness of the steel separator is 4-5 mm; the thickness of the limiting steel plate is 8-10mm, and the length of the limiting steel plate is 150-250 mm.

Further, the diameter of the pin is 16-19mm, the length of the pin is 75-120mm, and the arrangement interval is 185-200 mm.

Compared with the prior art, the technical scheme has the following beneficial effects:

(1) the upper end surface of the upper flange plate of the steel beam is provided with the limiting steel plate, the upper chord steel bar end part of the steel bar truss floor bearing plate is arranged on the limiting steel plate, and the elevation difference between the upper chord steel bar and the upper flange plate of the steel beam is directly controlled by welding the limiting steel plate below the prefabricated upper chord steel bar of the steel bar truss, so that the aim of accurately controlling the elevation of the 'descending plate' is fulfilled, the site construction is convenient, and the rapid and accurate positioning is convenient; spacing steel sheet also easily with girder steel welded connection, increased steel bar truss building carrier plate and steel structural framework in the girder steel reliability of being connected simultaneously.

(2) The utility model discloses set up the stiffening plate on the girder steel, then set up the steel layer board on the stiffening plate, supply the lower chord steel and the die block erection joint of steel bar truss building carrier plate, the biography power route of joint construction is reliable, can obtain good construction quality, and because steel bar truss's upper chord steel and lower chord steel all be whole with the girder steel welding, whole atress performance has been increased, can save the process of setting up interim support in "falling board" the work progress, reach and save man-hour, save material's purpose.

(3) The utility model discloses a die block setting can eliminate the clearance between die block and the steel pallet, sets up the steel baffle simultaneously in the side below of the last flange plate of girder steel, and is connected with the steel pallet for form sealed whole between steel bar truss building carrier plate and the girder steel, avoided the concrete placement in-process to produce the phenomenon of leaking the thick liquid. In addition, the adjacent steel bar truss floor support plates are reliably connected through the convex locking port and the concave locking port of the bottom die, and sealing performance is guaranteed.

Drawings

Fig. 1 is the utility model discloses steel beam unilateral "falls board" steel bar truss building carrier plate structure longitudinal section schematic diagram.

Fig. 2 is the utility model discloses steel girder two sides "fall board" steel bar truss building carrier plate structure longitudinal section schematic diagram.

Figure 3 is the utility model discloses steel girder unilateral "falls the steel bar truss building carrier plate structure transverse section schematic diagram of board".

Fig. 4 is the utility model discloses steel beam two sides "fall board" steel bar truss building carrier plate structure transverse section schematic diagram.

Fig. 5 is the utility model discloses steel column and steel bar truss building carrier plate connection structure section sketch map.

Fig. 6 is the utility model discloses steel bar truss building carrier plate structure plane arrangement sketch map.

Fig. 7 is the longitudinal section schematic view of the steel bar truss floor support plate of the utility model.

Fig. 8 is the transverse section schematic diagram of the steel bar truss floor support plate of the utility model.

Figure 9 is the utility model discloses a girder steel axle side schematic diagram.

Fig. 10 is a schematic side view of the stiffening plate of the present invention.

In the figure: 1-steel bar truss floor bearing plate, 101-upper chord steel bar, 102-web member steel bar, 103-lower chord steel bar, 104-bottom die, 105-end vertical steel bar, 106-end horizontal steel bar, 107-convex locking notch, 108-concave locking notch, 2-steel beam, 201-upper flange plate, 202-web plate, 203-lower flange plate, 3-steel supporting plate, 4-stiffening plate, 5-steel partition plate, 6-limiting steel plate, 7-additional steel bar, 8-distribution steel bar, 9-bolt nail, 10-concrete, 11-steel column and 12-L-shaped steel.

Detailed Description

The invention is further explained below with reference to the drawings and examples.

Example 1

A steel bar truss floor bearing plate structure in a steel structure frame comprises a steel beam 2 and a steel bar truss floor bearing plate 1 fixedly assembled on the steel beam 2; the steel bar truss floor deck 1 comprises a bottom die 104 and a steel bar truss arranged on the bottom die 104, the steel bar truss comprises upper chord steel bars 101 and two lower chord steel bars 103 arranged opposite to the upper chord steel bars 101, each lower chord steel bar 103 and the upper chord steel bars 101 are respectively connected with a group of web member steel bars 102, the upper end face of the bottom die 104 is provided with end part vertical steel bars 105 and end part horizontal steel bars 106, the end part horizontal steel bars 106 are positioned behind the lower ends of the end part vertical steel bars 105, two ends of the end part horizontal steel bars 106 are connected with the end parts of the two lower chord steel bars 103 in a welding mode, and the top of the end part vertical steel bars 105 is connected with the end parts of the upper chord steel bars 101 in a welding mode;

the steel beam 2 comprises an upper flange plate 201, a web plate 202 fixedly connected with the upper flange plate 201 and a lower flange plate 203 fixedly connected with the web plate 202;

the steel column also comprises a stiffening plate 4, additional steel bars 7, distributed steel bars 8, studs 9 and steel columns 11; the stiffening plate 4 is fixedly connected with the upper flange plate 201 and the web plate 202 of the steel beam 2 in a welding mode;

the steel bar truss floor support plate 1 is provided with an additional steel bar 7 at the position of the break of the steel beam 2, and the additional steel bar 7 is bound and connected with an upper chord steel bar 101 of the steel bar truss floor support plate 1; the distributed steel bars 8 are bound and connected with upper chord steel bars 101 and/or lower chord steel bars 103 of the steel bar truss floor support plate 1; the distributed steel bars 8 are arranged perpendicular to the upper chord steel bars 101 and the lower chord steel bars 103;

the stud 9 passes through the bottom die 104 and is fixedly connected with the steel beam 2 or the steel supporting plate 4; the upper end face of an upper flange plate 201 of the steel beam 2 is welded with a limiting steel plate 6, the end part of an upper chord steel bar 101 of the steel bar truss floor bearing plate 1 is welded on the limiting steel plate 6, and the upper chord steel bar 101 of the steel bar truss floor bearing plate 1 is welded with the upper flange plate 201 of the steel beam 2 through the limiting steel plate 6; one side wall of the stiffening plate 4 is provided with a steel supporting plate 3, and the other side wall is provided with a steel clapboard 5; the upper end of the steel partition plate 5 is welded with the bottom surface of the upper flange plate 201 of the steel beam 2, and the lower end of the steel partition plate is welded with the upper end surface of the steel supporting plate 3 to form a continuous gapless surface;

the bottom die 104 of the steel bar truss floor support plate 1 is arranged on the upper flange plate 201 of the steel supporting plate 3 or the steel beam 2 in a welding and fixing mode; steel column 11 sets up in 2 junctions of mutually perpendicular's girder steel, and concrete 10 is pour on steel bar truss building carrier plate 1, vibrates closely knit and screeds.

Example 2

The rest is the same as the embodiment 1, more specifically, the bottom die 104 is a galvanized steel plate with the thickness of 0.5-0.6 mm; the bottom mold 104 has a male locking notch 107 at one end and a female locking notch 108 at the other end.

Example 3

The rest is consistent with the embodiment 1, the diameter range of the upper chord steel bar 101 is 10-12 mm; the diameter range of the web member reinforcing steel bar 102 is 5.5-7 mm; the diameter range of the lower chord steel bar 103 is 8-10 mm; the diameter range of the end vertical steel bar 105 is 10-12 mm; the diameter of the end horizontal steel bar 106 ranges from 8mm to 10 mm.

Example 4

Otherwise, the width of the steel pallet 3 was 75-80mm and the thickness 8-10mm, in accordance with example 1.

Example 5

The rest is consistent with the embodiment 1, the stiffening plates 4 are equidistantly arranged along the length direction of the steel beam 2, the arrangement distance is 400-500mm, and the thickness of the stiffening plates 4 is 6-8 mm.

Example 6

The rest is consistent with the embodiment 1, and the thickness of the steel clapboard 5 is 4-5 mm; the thickness of the limiting steel plate 6 is 8-10mm, and the length is 150-250 mm.

Example 7

Otherwise, in accordance with example 1, the peg 9 has a diameter of 16-19mm, a length of 75-120mm and an arrangement pitch of 185-200 mm.

Example 8

Otherwise, in accordance with example 1, the steel beam 2 is connected to the steel column 11 by welding and/or bolting.

Example 9

The rest are consistent with the embodiment 1, the L-shaped steel 12 is welded at the connecting part of the steel column 11 and the steel bar truss floor support plate 1, the installation quality and the sealing performance of the steel bar truss floor support plate 1 are further guaranteed, and concrete leakage is avoided.

The foregoing is illustrative and explanatory of the invention and is not intended to limit the advantages attainable thereby, and it is within the scope of the present application to practice the invention with simple modifications to the structure and/or one or more of the advantages achieved in some embodiments.

Claims (7)

1. A steel bar truss floor bearing plate structure in a steel structure frame comprises a steel beam (2), a steel bar truss floor bearing plate (1) fixedly assembled on the steel beam (2) and concrete (10) poured on the steel bar truss floor bearing plate (1); the steel bar truss floor deck (1) comprises a bottom die (104) and a steel bar truss arranged on the bottom die (104), the steel bar truss comprises upper chord steel bars (101) and two lower chord steel bars (103) arranged opposite to the upper chord steel bars (101), each lower chord steel bar (103) and the upper chord steel bar (101) are respectively connected with a group of web member steel bars (102), and the upper end surface of the bottom die (104) is provided with end vertical steel bars (105) and end horizontal steel bars (106);

the steel beam (2) comprises an upper flange plate (201), a web plate (202) fixedly connected with the upper flange plate (201), and a lower flange plate (203) fixedly connected with the web plate (202);

the steel column is characterized by also comprising a stiffening plate (4), additional steel bars (7), distribution steel bars (8), studs (9) and steel columns (11); the stiffening plate (4) is fixedly connected with an upper flange plate (201) and a web plate (202) of the steel beam (2);

the additional steel bars (7) are bound and connected with upper chord steel bars (101) of the steel bar truss floor bearing plate (1); the distributed steel bars (8) are bound and connected with upper chord steel bars (101) and/or lower chord steel bars (103) of the steel bar truss floor bearing plate (1);

the method is characterized in that: the stud (9) penetrates through the bottom die (104) and is fixedly connected with the steel beam (2) or the steel supporting plate (3); the upper end face of an upper flange plate (201) of the steel beam (2) is provided with a limiting steel plate (6), and the end part of an upper chord steel bar (101) of the steel bar truss floor bearing plate (1) is arranged on the limiting steel plate (6); a steel supporting plate (3) is arranged on one side wall of the stiffening plate (4), and a steel clapboard (5) is arranged on the other side wall; the upper end of the steel partition plate (5) is fixedly connected with the bottom surface of an upper flange plate (201) of the steel beam (2), and the lower end of the steel partition plate is fixedly connected with the upper end surface of the steel supporting plate (3);

the bottom die (104) of the steel bar truss floor bearing plate (1) is arranged on the upper flange plate (201) of the steel supporting plate (3) or the steel beam (2); the steel columns (11) are arranged at the joints of the steel beams (2) which are perpendicular to each other.

2. The steel bar truss floor deck structure in the steel structure frame according to claim 1, wherein: the bottom die (104) is a galvanized steel plate, and the thickness is 0.5-0.6 mm; one side end of the bottom die (104) is provided with a convex locking port (107), and the other side end is provided with a concave locking port (108).

3. The steel bar truss floor deck structure in the steel structure frame according to claim 1, wherein: the diameter range of the upper chord steel bar (101) is 10-12 mm; the diameter range of the web member steel bar (102) is 5.5-7 mm; the diameter range of the lower chord steel bar (103) is 8-10 mm; the diameter range of the end vertical steel bar (105) is 10-12 mm; the diameter range of the end horizontal steel bar (106) is 8-10 mm.

4. The steel bar truss floor deck structure in the steel structure frame according to claim 1, wherein: the width of the steel supporting plate (3) is 75-80mm, and the thickness of the steel supporting plate is 8-10 mm.

5. The steel bar truss floor deck structure in the steel structure frame according to claim 1, wherein: the stiffening plates (4) are arranged at equal intervals along the length direction of the steel beam (2), the arrangement distance is 400-500mm, and the thickness of the stiffening plates (4) is 6-8 mm.

6. The steel bar truss floor deck structure in the steel structure frame according to claim 1, wherein: the thickness of the steel clapboard (5) is 4-5 mm; the thickness of the limiting steel plate (6) is 8-10mm, and the length is 150-250 mm.

7. The steel bar truss floor deck structure in the steel structure frame according to claim 1, wherein: the diameter of the pin (9) is 16-19mm, the length is 75-120mm, and the arrangement interval is 185-200 mm.

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