CN219491717U - Roof truss overhanging steel platform formwork device - Google Patents

Abstract

The utility model relates to a roof framework overhanging steel platform formwork device, which comprises a steel truss, a steel frame and a supporting component; the steel truss consists of a plurality of angle steels paved on the floor plate of the building; the steel frame is composed of a plurality of section steels paved on the angle steel rows; the angle steel is fixedly connected with the section steel; the support component comprises a fixing piece and an inclined strut which are arranged on the floor board; the fixing piece is fixedly connected with the end part of the angle steel through an inclined stay bar; the plurality of angle steels are connected through the reinforcing piece. This application adopts the integrated form of steel truss and type steelframe, and the angle steel both ends are through setting up the diagonal brace, realize fixing steel truss, and only need when demolishing diagonal brace cutting can, be convenient for demolish, through setting up the reinforcement, can further strengthen steel truss's rigidity and crack resistance for cantilever steel platform is more firm, is applicable to high-rise large-span construction operation, and this steel platform can reuse, and intensity is high.

Description

Roof truss overhanging steel platform formwork device

Technical Field

The disclosure relates to the field of overhanging formwork steel platforms, in particular to a roof framework overhanging steel platform formwork device.

Background

With the rapid development of society, more and more high-rise or super high-rise building projects are rapidly pulled up. High-rise or super-high-rise building projects can provide larger residential supply or commercial supply in a limited land area so as to relieve increasingly tense land supply and meet the increasing living demands and office demands of people.

Traditional construction projects adopt the form of console mode scaffold to construct, but because the roof truss of high-rise or super high-rise building need encorbelment to the position of outer wall face 2600mm, have factors such as span is big, the construction degree of difficulty is big, the security risk is high, the console mode scaffold has disadvantages such as with high costs, inefficiency, is not applicable to the construction of high-rise or super high-rise building. The prior art adopts the form of steel construction platform to carry out the construction, but these steel construction platforms generally weld on the lateral wall of building, and whole support is not firm enough, demolishs the difficulty, influences the efficiency of construction and exists certain potential safety hazard.

Disclosure of Invention

In order to solve the problems in the prior art, the disclosure aims to provide a roof framework overhanging steel platform formwork device.

The utility model discloses a roof framework overhanging steel platform formwork device, which comprises a steel truss, a steel frame and a supporting component; the steel truss consists of a plurality of angle steels paved on a floor plate of a building; the steel frame is composed of a plurality of steel sections paved on the angle steel rows; the angle steel is fixedly connected with the section steel; the support component comprises a fixing piece and an inclined strut which are arranged on the floor plate; the fixing piece is fixedly connected with the end part of the angle steel through the diagonal brace; the angle steel is connected through a reinforcing piece.

Preferably, the fixing piece is an anchor plate pre-buried on the floor plate; the anchor plate is fixedly connected with the floor plate through steel bars; one end of the diagonal brace is welded with the anchor plate, and the other end of the diagonal brace is welded with the angle steel.

Preferably, the included angle between the diagonal brace and the floor panel is 60 °.

Preferably, the top surface of the angle steel is provided with a first connecting block welded with the angle steel; the bottom surface of the section steel is provided with a second connecting block welded with the section steel; the first connecting block and the second connecting block are correspondingly arranged, and the first connecting block and the second connecting block are fixedly connected through bolts.

Preferably, the section steel is I50a type I-steel.

Preferably, the diagonal brace is 10 h-steel.

Preferably, the reinforcement comprises a plurality of upper chord connecting rods and a plurality of lower chord connecting rods; the upper chord connecting rod is fixedly arranged on the top surface of the angle steel through a bolt; the lower chord connecting rod is fixedly arranged on the bottom surface of the angle steel through a bolt.

Preferably, the upper chord connecting rod and the lower chord connecting rod are all 10 channel steel.

Preferably, the section steel is provided with a plurality of vertical rods; the vertical rods are equidistantly distributed on the upper surface of the section steel.

Preferably, the upright rods are connected through shear struts.

The utility model discloses a roof truss steel platform formwork device that encorbelments, its advantage lies in, adopts the integrated form of steel truss and type steelframe, and the angle steel both ends are through setting up the diagonal brace, realize the fixed to steel truss, and only need with the diagonal brace cutting can when demolishing, be convenient for demolish, through setting up the reinforcement, can further strengthen steel truss's rigidity and crack resistance for encorbelment steel platform is more firm, is applicable to high-rise large-span construction operation, and this steel platform can reuse, and intensity is high.

Drawings

FIG. 1 is a schematic plan view of a basic formwork of a roof truss overhanging steel platform formwork apparatus of the present disclosure;

FIG. 2 is a schematic view of the structure of the steel truss and lower chord connecting rods of the present disclosure;

FIG. 3 is a schematic view of the structure of the angle steel and section steel connection of the present disclosure;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A in accordance with the present disclosure;

FIG. 5 is an enlarged schematic view of the structure of FIG. 1 at B-B in accordance with the present disclosure;

reference numerals illustrate: 1. a steel truss; 2. a steel frame; 3. an anchor plate; 4. a diagonal brace; 5. a lower chord connecting rod; 6. a vertical rod; 7. a shear support; 8. floor surfaces; 11. angle steel; 21. section steel; 31. reinforcing steel bars; 111. a first connection block; 211. and a second connecting block.

Detailed Description

As shown in fig. 1 to 5, a roof truss overhanging steel platform formwork device of the present disclosure includes a steel truss 1, a steel frame 2 and a supporting assembly; the steel truss 1 is composed of a plurality of angle steels 11 paved on the floor plate of a building; the steel frame 2 is composed of a plurality of section steels 21 paved on the rows of angle steels 11; the angle steel 11 is fixedly connected with the section steel 21; the support component comprises a fixing piece and an inclined strut 4 which are arranged on the floor board; the fixing piece is fixedly connected with the end part of the angle steel 11 through the diagonal brace 4; the plurality of angle steel 11 are connected through a reinforcement.

Wherein, shaped steel 21 is I50a type I steel. The angle steel 11 has 5 in total, and 2 angle steel 11 set up in the two-sided shear force wall and lean on the inboard position of building, and 3 angle steel 11 equidistant settings are in the two-sided shear force wall and lean on the position of building outside. In this embodiment, the section steel 21 has 11 pieces, is laid on 5 pieces of angle steel 11 at a pitch of 900mm, and a part of the section steel 21 is suspended outside the building. The mounting is pre-buried in the supporting beam of floor board, and the both ends of angle steel 11 are connected through bolt and mounting, and diagonal brace 4 one end and mounting fixed connection, the other end and angle steel 11 fixed connection play the fixed action to angle steel 11. When the oblique stay bar 4 is dismounted, the oblique stay bar is only required to be cut, and the dismounting is convenient.

In the embodiment, the angle steel 11 can be installed only after the concrete strength reaches 75%, and the setting distance is not less than 300mm.

The advantage of this disclosure lies in, adopt steel truss 1 and shaped steel frame 2's combined form, angle steel 11 both ends are through setting up diagonal brace 4, realize the fixed to steel truss 1, and only need when demolishing diagonal brace 4 cutting can, be convenient for demolish, through setting up the reinforcement, can further strengthen steel truss 1's rigidity and crack resistance for cantilever steel platform is more firm, is applicable to high-rise large-span construction operation, and this steel platform can reuse, and intensity is high.

In a further embodiment, the fixing element is an anchor plate 3 pre-buried on the floor plate; the anchor plate 3 is fixedly connected with the floor board through a reinforcing steel bar 31; one end of the diagonal brace 4 is welded with the anchor plate 3, and the other end is welded with the angle steel 11.

The anchor plate 3 has the thickness of 10mm, is pre-buried in the structural beam of the floor plate, is anchored by a phi 16 steel bar 31 with the length of 300mm, and the diagonal brace 4 is 10I-steel and is fully welded on the angle steel 11.

In a further embodiment the angle between the diagonal braces 4 and the floor panel is 60.

The included angle is set to 60 degrees, so that the inclined stay bar 4 can bear force better, and a certain operation space is provided.

In a further embodiment, the top surface of the angle 11 is provided with a first connecting block 111 welded with the angle 11; the bottom surface of the section steel 21 is provided with a second connecting block 211 welded with the section steel 21; the first connection block 111 and the second connection block 211 are correspondingly arranged, and the first connection block 111 and the second connection block 211 are fixedly connected through bolts.

Bolt holes (4 x phi 18) are formed in four corner positions of the first connecting block 111 and the second connecting block 211, and the bolts on the first connecting block 111 and the second connecting block 211 adopt high-strength bolts 3 with the length of 4 x M16. Each angle steel 11 is provided with a first connecting block 111 correspondingly arranged. And a second connecting block 211 is arranged at the contact position of the section steel 21 and the angle steel 11. The first connecting block 111 and the second connecting block 211 are 10mm thick and are fully welded to the top surface of the angle steel 11 and the bottom surface of the section steel 21.

In a further embodiment, the reinforcement comprises several upper chord connecting rods and several lower chord connecting rods 5; the upper chord connecting rod is fixedly arranged on the top surface of the angle steel 11 through a bolt; the lower chord connecting rod 5 is fixedly arranged on the bottom surface of the angle steel 11 through bolts. The upper chord connecting rod and the lower chord connecting rod 5 are all 10 channel steels.

The total number of the upper chord connecting rods and the lower chord connecting rods 5 is 8, 4 groups of the upper chord connecting rods and the lower chord connecting rods 5 are arranged in the middle of the steel truss 1, and the upper chord connecting rods and the lower chord connecting rods 5 clamp the steel truss 1 and are connected through M16 bolts.

In the above embodiment, the two section steels 21 at the two ends are connected with the basket bolts through round steels arranged in a crossing way to form a shear brace.

In a further embodiment, the section steel 21 is provided with a plurality of uprights 6; the uprights 6 are equidistantly distributed on the upper surface of the section steel 21. The upright posts 6 are connected through shear struts 7.

The upper surface of shaped steel 21 is equipped with the connecting seat that corresponds the setting with pole setting 6, and each pole setting 6 inserts respectively in the corresponding connecting seat. The upright rods 6 are provided with a plurality of inclined rods, and each two inclined rods are arranged in a crossing manner to form a shear support 7, so that the longitudinal stability and the longitudinal rigidity of the support frame base can be enhanced, and the integral structure of the support frame base is ensured not to be deformed.

In the above embodiment, when the anchor plate 3 is embedded in the structural beam, the plurality of angle steels 11 are sequentially hung on the floor plate by adopting the crane, two ends of the angle steels are respectively connected with the anchor plate 3 through bolts, the plurality of section steels 21 are sequentially hung on the angle steels 11 by adopting the crane, and the first connecting block 111 and the second connecting block 211 are aligned and then are connected by adopting high-strength bolts. And then welding the diagonal brace 4, and finally erecting a vertical rod 6 and other structures.

In the description of the present disclosure, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present disclosure and simplify the description, and without being otherwise described, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be configured and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present disclosure.

It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the utility model as defined in the claims.

Claims (10)

1. The cantilever steel platform formwork device of the roof framework is characterized by comprising a steel truss, a steel frame and a supporting component; the steel truss consists of a plurality of angle steels paved on a floor plate of a building; the steel frame is composed of a plurality of steel sections paved on the angle steel rows; the angle steel is fixedly connected with the section steel; the support component comprises a fixing piece and an inclined strut which are arranged on the floor plate; the fixing piece is fixedly connected with the end part of the angle steel through the diagonal brace; the angle steel is connected through a reinforcing piece.

2. The roof truss overhanging steel platform formwork apparatus as claimed in claim 1, wherein said fixing member is an anchor plate pre-buried on said floor panel; the anchor plate is fixedly connected with the floor plate through steel bars; one end of the diagonal brace is welded with the anchor plate, and the other end of the diagonal brace is welded with the angle steel.

3. The roof truss overhanging steel platform formwork apparatus of claim 1 wherein the angle between the diagonal braces and the floor panel is 60 °.

4. The roof truss overhanging steel platform formwork device of claim 1, wherein the top surface of the angle steel is provided with a first connecting block welded with the angle steel; the bottom surface of the section steel is provided with a second connecting block welded with the section steel; the first connecting block and the second connecting block are correspondingly arranged, and the first connecting block and the second connecting block are fixedly connected through bolts.

5. The roof truss overhanging steel platform formwork apparatus of claim 1 or 4 wherein the section steel is I50a type I-steel.

6. A roof truss overhanging steel platform formwork apparatus as claimed in any one of claims 1 to 3 wherein the diagonal brace is h-steel No. 10.

7. The roof truss overhanging steel platform formwork apparatus of claim 1, wherein the stiffener comprises a plurality of upper chord connecting rods and a plurality of lower chord connecting rods; the upper chord connecting rod is fixedly arranged on the top surface of the angle steel through a bolt; the lower chord connecting rod is fixedly arranged on the bottom surface of the angle steel through a bolt.

8. The roof truss overhanging steel platform formwork apparatus of claim 7, wherein the upper chord connecting rod and the lower chord connecting rod are both channel steel No. 10.

9. The roof truss overhanging steel platform formwork device according to claim 1, wherein a plurality of upright posts are arranged on the section steel; the vertical rods are equidistantly distributed on the upper surface of the section steel.

10. The roof truss overhanging steel platform formwork apparatus as claimed in claim 9 wherein each of said uprights is connected by a shear strut.