CN102454292A - Supporting steel frame of high altitude large-span cantilever structure mold frame - Google Patents

Abstract

The invention discloses a supporting steel frame of a high-altitude large-span cantilevered structure formwork, which includes a floor slab, a supporting frame and a cantilever beam. The supporting frame is triangular, and the lower end of the triangular supporting frame is installed on a pre-embedded iron piece on the lower floor , the upper end of the triangular support frame is provided with a cantilever beam, and one end of the cantilever beam passes through the anchor ring installed on the upper floor and is wedged tightly by a wooden wedge. The supporting steel frame structure of the present invention has reasonable stress, high rigidity, strong bearing capacity of the cantilever end, large cantilever span, strong bearing capacity, and large frame rigidity, which can effectively ensure the overall stability and construction of the large-span cantilever structure formwork Safety. The steel frame can be pre-assembled on site, and the frame is lightweight, easy to install and dismantle, saving labor and time. The supporting steel frame can be used for multiple times, has good economic benefits, and is worth popularizing.

Description

Supporting Steel Frame for High-altitude and Large-span Cantilevered Structure Formwork

technical field

The invention belongs to the field of cantilevered supporting steel frames and relates to the field of building construction, in particular to a supporting steel frame used for high-altitude and large-span cantilevered structure formwork. .

Background technique

With the continuous development of construction technology, architects are paying more and more attention to the appearance of buildings, usually using high-altitude, long-span, and super-long cantilever structures to achieve a magnificent and solemn modeling effect. The traditional I-beam cantilever is adopted, the span of the steel beam is small, and the bearing capacity of the cantilever end is weak, which cannot meet the requirements of the formwork for carrying a large-span cantilevered structure; while the floor-type scaffolding is used for support, it is necessary to erect a structure Complicated tall frames are labor-intensive, material-intensive, and time-consuming, and are neither safe nor economical.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a supporting steel frame for a high-altitude large-span cantilevered structure formwork, which solves the problem of the small span and insufficient bearing capacity of the cantilevered end of the traditional cantilevered I-beam Shortcomings.

The present invention is achieved through the following technical solutions:

A supporting steel frame of a high-altitude large-span cantilevered structure formwork, including a floor slab, a support frame and a cantilever beam. The support frame is triangular, and the lower end of the triangular support frame is installed on the embedded iron piece on the lower floor. The triangular support frame There is a cantilever beam at the upper end of the cantilever beam, and one end of the cantilever beam passes through the anchor ring installed on the upper floor and is wedged tightly by a wooden wedge.

The triangular support frame is composed of diagonal bracing rods, horizontal web rods and diagonal bracing web rods. There are two diagonal bracing rods. The horizontal web bar is horizontally installed between two diagonal braces, and the diagonal bracing web bar is installed between every two horizontal web bars and forms a certain angle with the horizontal web bar.

A short pipe is installed on the horizontal web bar.

A blind hole is arranged on the upper floor, a through hole corresponding to the position of the blind hole is arranged on the cantilever beam, and pins are arranged in the through hole and the blind hole.

The advantages of the present invention are: the supporting steel frame structure of the present invention has reasonable stress, high rigidity, strong bearing capacity of the cantilevered end, large cantilevered span, strong bearing capacity, large frame body rigidity, and can effectively ensure the stability of the large-span cantilevered structural formwork. The overall stability and construction safety of the frame. The steel frame can be pre-assembled on site, and the frame is lightweight, easy to install and dismantle, saving labor and time. The supporting steel frame can be used for multiple times, has good economic benefits, and is worth popularizing.

Description of drawings

Figure is a structural representation of the present invention.

Detailed ways

Embodiment: The supporting steel frame of the high-altitude and large-span cantilevered structure formwork as shown in the figure includes a floor slab, a support frame and a cantilever beam. The support frame 14 is triangular, and the triangular support frame 14 is composed of diagonal braces 8, horizontal The web bar 9 and the diagonal bracing web bar 10 are composed of two diagonal bracing bars 8. They form a certain angle and their lower ends are fixed on the embedded iron parts 12 on the lower floor 13. The horizontal web bar 9 is horizontal Installed between two diagonal braces 8, the diagonal brace webs 10 are installed between every two horizontal webs 9 and form a certain angle with the horizontal webs 9. A short pipe 11 is installed on the horizontal web bar 9 . The upper end of the triangular support frame is provided with a cantilever beam 4, and one end of the cantilever beam 4 passes through the anchor ring 2 installed on the upper floor 1, and is wedged tightly by a wooden wedge 3. The upper floor 1 is provided with a blind hole 5, and the cantilever beam 4 is provided with a through hole 6 corresponding to the position of the blind hole 5, and an anti-slip reinforcement pin 7 is provided in the through hole 6 and the blind hole 5.

During construction, the bracing frame 14 of the above-mentioned high-altitude and large-span cantilevered structure formwork can be lofted and assembled at the construction site, and all its bar nodes are welded, and then welded with the cantilever beam 4 to form a whole triangular support steel frame. The triangular support steel frame is hoisted into place by tower crane, the cantilever beam 4 passes through the embedded anchor ring 2, after the position of the frame body is adjusted, it is tightened with a wooden wedge 3, and the bottom end of the triangular support frame 14 is welded and fixed to the embedded iron piece 12 . Insert the anti-slip reinforcement pin 7 to lock the horizontal cantilever beam. A short steel pipe 11 is respectively welded on the horizontal web bar 9, and the fixed longitudinal connection is connected with a long steel pipe.

After each triangular supporting steel frame is installed in place, each supporting steel frame is connected into a whole with a longitudinal through-length steel pipe. The supporting steel frame is covered with wooden springboards, and the formwork support of the cantilever structure is set up, and the vertical pole of the formwork is set up directly above the steel frame.

When the floor height is greater than 4.5m, add a horizontal web bar 9 and a diagonal bracing web bar 10.

Claims (4)

1. the supporting steel frame of a high-altitude long-span cantilevered structure mould bases; Comprise floor, bracing frame and the beam of encorbelmenting; It is characterized in that: support frame as described above is a triangle, and the lower end of triangle support frame is installed in down the embedded iron parts on the floor, and the upper end of triangle support frame is provided with the beam of encorbelmenting; The end of beam of encorbelmenting passes in the anchor ring that is installed on the floor, and through the timber wedge wedging.

2. building photovoltaic curtain wall device according to claim 1; It is characterized in that: said triangle support frame is made up of hound, horizontal web member and diagonal brace web member; Said hound is two; Their in a certain angle and lower ends all are packed in the embedded iron parts portion on the floor, and said horizontal web member level is installed between two hounds, and said diagonal brace web member is installed between per two horizontal web members and is in a certain angle with horizontal web member.

3. the supporting steel frame of high-altitude long-span cantilevered structure mould bases according to claim 2 is characterized in that: on horizontal web member, short tube is installed.

4. the supporting steel frame of high-altitude long-span cantilevered structure mould bases according to claim 1 is characterized in that: on last floor, be provided with blind hole, the beam of encorbelmenting is provided with and this corresponding through hole in blind hole position, is provided with pin in through hole and the blind hole.

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