CN111364745A - Unsupported self-supporting profile steel platform - Google Patents
Unsupported self-supporting profile steel platform Download PDFInfo
- Publication number
- CN111364745A CN111364745A CN202010359885.XA CN202010359885A CN111364745A CN 111364745 A CN111364745 A CN 111364745A CN 202010359885 A CN202010359885 A CN 202010359885A CN 111364745 A CN111364745 A CN 111364745A
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- steel
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/18—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by cantilevers or other provisions mounted in openings in the building, e.g. window openings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention provides an unsupported self-supporting section steel platform which comprises a cast-in-place concrete member, a bolt embedded part, a metal plate, a bolt, section steel, angle steel, an external scaffold, an assembled concrete member and a limiting plate. The metal plate, the section steel, the angle steel and the limiting plate are of an integrated structure and are fixed on the cast-in-place concrete member. According to the invention, in the fabricated concrete structure, the situation that the outer protective structure is provided with the hole, namely the inner side of the fabricated concrete member or the cast-in-place concrete member is not required to be anchored by profile steel is avoided, except that the bolt embedded part is embedded inside and outside the concrete member, the metal plate, the profile steel, the angle steel and the limiting plate form a stable whole and then are fixedly installed outside the concrete member through the bolt, the bolt is a detachable turnover member, and the whole formed by the metal plate, the profile steel, the angle steel and the limiting plate can be transported, hoisted and reused.
Description
Technical Field
The invention relates to the technical field of building components, in particular to an unsupported self-supporting steel platform.
Background
The external scaffold system of the cast-in-place concrete structure and the prefabricated building can be mainly divided into a floor type, an overhanging type, an external climbing type and the like according to the height of a floor and the complexity of the building. In the traditional process for building the overhanging type cast-in-place concrete structure and the outer scaffold of the prefabricated assembly type building, when a steel platform of the overhanging type scaffold is connected with a main body outer enclosure structure or extends into the outer enclosure structure for anchoring, according to corresponding requirements, because the steel needs to be arranged in the outer enclosure structure and anchored with the length which is not less than 1.25 times of the overhanging length of the steel, holes need to be arranged at the positions when other components such as a prefabricated outer wall and a prefabricated column are manufactured in a factory, the process not only influences the implementation of the working procedures such as masonry, electromechanics and decoration of the subsequent steel platform floor, but also influences the structure by the arrangement of an embedded part of the fixed steel in the structure, the steel platform needs to be subjected to fire operation, the safety risk is increased, the labor input is increased, the construction period is prolonged, the construction cost is increased, and the construction of the.
Disclosure of Invention
Aiming at the problems, the invention aims to provide an unsupported self-supporting steel platform which can effectively reduce resource waste, increase benefit, reduce cost, reduce labor input, reduce potential safety hazard and has low risk coefficient.
The purpose of the invention is realized by the following technical scheme:
an unsupported self-supporting section steel platform comprises a cast-in-place concrete member, an assembled concrete member, an external scaffold, a bolt embedded part, a metal plate, a bolt, section steel, angle steel and a limiting plate; the fabricated concrete member is arranged on the top of the outer side surface of the cast-in-place concrete member; the outer scaffold is arranged on the outer sides of the cast-in-place concrete member and the assembled concrete member, the bolt embedded parts are a plurality of expansion pipes which are embedded in the cast-in-place concrete member and internally provided with internal threads, and the openings of the bolt embedded parts are communicated with the outside; the metal plate is attached to the outer side surface of the cast-in-place concrete member, and a plurality of mounting holes are formed in the position, opposite to the opening of the bolt embedded part, of the metal plate; the bolt penetrates through the mounting hole from the outer side of the metal plate and then is screwed into the inner hole of the bolt embedded part to be in threaded connection with the bolt embedded part, and the metal plate is fixed on the outer side surface of the cast-in-place concrete member; the cross section of the section steel is I-shaped, one end of the section steel is fixed on the outer side surface of the metal plate, and the other end of the section steel extends out reversely; the angle steel is two right-angle bent plates which are respectively fixed on an included angle formed by the section steel and the metal plate; the limiting plates are two U-shaped metal plates which are fixed on the outer side face of the metal plate in parallel and are respectively attached to two sides of the section steel, and the limiting plates are clamped in a groove body on the side face of the section steel.
Further, shaped steel, angle steel, limiting plate all pass through welded fastening with the metal sheet lateral surface, and shaped steel and angle steel pass through welded fastening, and shaped steel, angle steel, limiting plate, metal sheet form a whole through the welding, can shorten steel platform installation time, are convenient for transport and assembly simultaneously.
Furthermore, the section of angle steel is L type or right triangle or right trapezoid, and three kinds of shapes all have two mutually perpendicular and can laminate fixedly respectively with shaped steel and metal sheet respectively to reinforcing steel platform's stability. The concrete connection mode is as follows: one right-angle surface of the angle steel is attached and fixed on the section steel, and the other right-angle surface of the angle steel is attached and fixed on the outer side surface of the metal plate.
Furthermore, the bolt embedded part, the metal plate, the bolt, the section steel, the angle steel and the limiting plate are all made of metal materials. Such as steel.
Furthermore, for preventing outer scaffold frame horizontal slip, be equipped with a plurality of installation sleeves at the shaped steel top, the grafting of every steel pipe bottom one to one of outer scaffold frame is in the installation sleeve.
Further, the distance between the upper edge of the metal plate and the upper edge of the section steel is preferably more than one third of the height of the metal plate, so that the overall stress performance is improved. Of course, the distance between the upper edge of the metal plate and the upper edge of the section steel is not limited to more than one third of the height of the metal plate, the specific height is set according to the calculation of the stress, and the scheme is a preferable scheme.
Further, metal sheet, shaped steel, angle steel, limiting plate formula structure as an organic whole, the reducible steel platform installation time of integral type structure, the transportation and the assembly of being convenient for simultaneously.
The unsupported self-supporting steel platform is suitable for a cast-in-place concrete structure or an assembled concrete structure or a combined body of the cast-in-place concrete structure and the assembled concrete structure.
Further, the outer side surface of the cast-in-place concrete member is a V-shaped corner surface; the V-shaped corner surface is an external corner surface or an internal corner surface, and the metal plate correspondingly and cooperatively arranged on the V-shaped corner surface of the cast-in-place concrete member is also a V-shaped corner plate.
Furthermore, the included angle between the section steel and the metal plate is a right angle, an acute angle or an obtuse angle.
The invention has the advantages that:
according to the invention, in the fabricated concrete structure, the situation that the outer protective structure is provided with the hole, namely the inner side of the fabricated concrete member or the cast-in-place concrete member is not required to be anchored by profile steel is avoided, except that the bolt embedded part is embedded inside and outside the concrete member, the metal plate, the profile steel, the angle steel and the limiting plate form a stable whole and then are fixedly installed outside the concrete member through the bolt, and the bolt is a detachable turnover member, so that the whole formed by the metal plate, the profile steel, the angle steel and the limiting plate can be transported, hoisted and reused.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of an unsupported self-supporting steel platform according to the present invention;
FIG. 2 is a schematic side elevation view of an integrated structure formed by a metal plate, a steel section, an angle steel, and a limiting plate according to a first embodiment of the present invention;
FIG. 3 is a schematic view of the front vertical surface installation of the integrated structure formed by the metal plate, the section steel, the angle steel and the limiting plate;
FIG. 4 is an exploded view of the angle iron, the bolt and the embedded bolt of the present invention;
FIG. 5 is a schematic view of the installation of a cast-in-place concrete member and a metal plate according to a second embodiment of the present invention;
FIG. 6 is a schematic structural view of a metal plate according to a second embodiment of the present invention;
FIG. 7 is a schematic view showing the mounting of the section steel and the metal plate in the third embodiment of the present invention;
FIG. 8 is a flow chart of the construction steps of an unsupported self-supporting steel platform according to the invention;
shown in the figure: the method comprises the following steps of 1-cast-in-place concrete member, 2-bolt embedded part, 3-metal plate, 4-bolt, 5-section steel, 6-angle steel, 7-external scaffold, 8-fabricated concrete member, 9-limiting plate, 10-mounting sleeve and 11-mounting hole.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, proportions, and dimensions shown in the drawings and described herein are for illustrative purposes only and are not intended to limit the scope of the present invention, which is defined by the claims, but rather by the claims. In addition, the terms such as "upper", "lower", "left", "right" and "middle" used in the present specification are for convenience of description only, and are not intended to limit the scope of the present invention, and changes or modifications of the relative relationship thereof may be regarded as the scope of the present invention without substantial changes in the technical contents.
The first embodiment is as follows:
as shown in fig. 1 to 4, the unsupported self-supporting steel platform of the present invention includes a cast-in-place concrete member 1, a bolt embedded part 2, a metal plate 3, a bolt 4, a steel section 5, an angle steel 6, an external scaffold 7, an assembled concrete member 8, and a limiting plate 9. The bolt embedded part 2 is formed by a plurality of expansion pipes which are embedded in the cast-in-place concrete member 1 and internally provided with internal threads (the outer side of the bolt embedded part 2 is an annular bulge or a conical body which expands outwards), and the opening part of the bolt embedded part 2 is communicated with the outside (the opening part of the bolt embedded part 2 is flush with the outer side surface of the cast-in-place concrete member 1). The metal plate 3 is attached to the outer side surface of the cast-in-place concrete member 1, and a plurality of mounting holes 11 (preferably six mounting holes, which are uniformly distributed in six directions of the metal plate 3) are formed in the positions, which are opposite to the openings of the bolt embedded parts 2, on the metal plate 3. The bolt 4 is screwed into the inner hole of the bolt embedded part 2 to be in threaded connection with the bolt embedded part 2 after the outer side of the metal plate 3 penetrates through the mounting hole, and the metal plate 3 is fixed on the outer side surface of the cast-in-place concrete member 1. The cross section of the section steel 5 is I-shaped, one end of the section steel 5 is fixed on the outer side surface of the metal plate 3, and the other end of the section steel extends out reversely. The angle steel 6 is two right angle bent plates which are respectively fixed on the included angle formed by the section steel 5 and the metal plate 3. The limiting plates 9 are two U-shaped metal plates which are fixed on the outer side face of the metal plate 3 in parallel and attached to two sides of the section steel 5 respectively, the limiting plates 9 are clamped in groove bodies on the side faces of the section steel 5 (the limiting plates 9 are used for supporting the section steel 5 in an auxiliary mode and limiting horizontal deviation of the section steel 5 at the same time, the outer scaffold 7 is installed at the top of the section steel 5, the section steel 5 can be subjected to horizontal component force applied by the outer scaffold 7, certain degree of deflection deformation or swinging is generated, although the degree of deformation is possibly small, certain probability can lead to looseness of a welding position of the section steel 5, and the existence of the limiting plates 9 can limit deflection deformation or swinging to a certain degree. The fabricated concrete member 8 is arranged on the top of the outer side surface of the cast-in-place concrete member 1; the outer scaffold 7 is installed outside the cast-in-place concrete member 1 and the fabricated concrete member 8. In order to prevent the outer scaffold 7 from horizontally sliding, a plurality of mounting sleeves 10 are arranged at the top of the section steel (5), and the bottoms of each steel pipe of the outer scaffold 7 are inserted into the mounting sleeves 10 one by one. Wherein the included angle between the section steel 5 and the metal plate 3 is a right angle. The outer side plane of the cast-in-place concrete member 1; the metal plate 3 is also a flat plate.
The distance between the upper edge of the metal plate 3 and the upper edge of the section steel 5 is more than one third of the height of the metal plate 3, so that the integral stress performance is improved. Of course, the distance between the upper edge of the metal plate 3 and the upper edge of the section steel 5 is not limited to more than one third of the height of the metal plate 3, and the specific height should be set according to the calculation of the stress, and the scheme is a preferable scheme.
The bolt embedded part 2, the metal plate 3, the bolt 4, the section steel 5, the angle steel 6 and the limiting plate 9 are all made of metal materials. Such as steel.
As shown in fig. 1-3, the section steel 5, the angle steel 6 and the limiting plate 9 are all welded and fixed with the side surface of the metal plate 3, the section steel 5 and the angle steel 6 are welded and fixed, and the section steel 5, the angle steel 6, the limiting plate 9 and the metal plate 3 are welded and formed into a whole, so that the installation time of the steel platform can be shortened, and the transportation and the assembly are convenient.
The section of the angle steel 5 is L-shaped or right-angled triangle or right-angled trapezoid, and the three shapes are mutually vertical and can be respectively attached and fixed with the section steel 5 and the metal plate 3 so as to enhance the stability of the steel platform. The concrete connection mode is as follows: one right-angle surface of the angle steel 6 is attached and fixed on the section steel 5, and the other right-angle surface is attached and fixed on the outer side surface of the metal plate 3.
As shown in figure 3, the metal plate 3, the section steel 5, the angle steel 6 and the limiting plate 9 are of an integrated structure, the installation time of the steel platform can be shortened through the integrated structure, and meanwhile, the transportation and the assembly are convenient.
The unsupported self-supporting steel platform is suitable for a cast-in-place concrete structure or an assembled concrete structure or a combined body of the cast-in-place concrete structure and the assembled concrete structure.
Example two:
as shown in fig. 5 and 6, the present embodiment is different from the first embodiment in that the outer side surface of the cast-in-place concrete member 1 is a V-shaped corner surface; the V-shaped corner surface is an external corner surface or an internal corner surface, and the metal plate 3 correspondingly and cooperatively arranged on the V-shaped corner surface of the cast-in-place concrete member 1 is also a V-shaped corner plate.
Example three:
as shown in fig. 7, the present embodiment is different from the second embodiment in that the included angle between the section steel 5 and the metal plate 3 is a right angle, an acute angle or an obtuse angle.
The installation principle of the invention is as follows:
the operation steps of the metal plate 3, the section steel 5, the angle steel 6 and the limiting plate 9 which are connected into an integrated structure are as follows:
a. vertically welding the I-shaped steel 5 on the metal plate 3;
b. respectively welding two limiting plates 9 on the metal plate 3 and not arranging on two sides of the section steel 5, so that a middle plate of the section steel 5 is tightly attached between the two limiting plates 9, simultaneously, the lower surface of a top plate of the section steel 5 is attached to the tops of the two limiting plates 9, and the upper surface of a bottom plate of the section steel 5 is attached to the bottoms of the two limiting plates 9; then, the end of the section steel 5 is welded to the metal plate 3. Limiting plate 9 stands on one side, and limiting plate 9 side is used for restricting shaped steel 5 displacement about, and limiting plate 9 top and bottom are used for the auxiliary stay shaped steel 5, restrict the luffing motion of shaped steel 5 simultaneously.
The installation of the limiting plate 9 and the section steel 5 ensures that the distance between the upper edge of the metal plate 3 and the upper edge of the section steel 5 is more than one third of the height of the metal plate 3 so as to increase the overall stress performance. Of course, the distance between the upper edge of the metal plate 3 and the upper edge of the section steel 5 is not limited to more than one third of the height of the metal plate 3, and the specific height should be set according to the calculation of the stress, and the scheme is a preferable scheme.
c. And finally, respectively welding and fixing the two angle steels 6 on an included angle formed by the section steel 5 and the metal plate 3, wherein one right-angle surface of each angle steel 6 is attached and welded on the section steel 5, and the other right-angle surface is attached and welded on the outer side surface of the metal plate 3.
As shown in fig. 8, the installation steps of an unsupported self-supporting steel platform of the present invention are as follows:
(1) and (3) installing and fixing the bolt embedded part 2 in the concrete mould, enabling the opening part of the bolt embedded part 2 to extend out of the outermost template of the concrete mould (flush with the outer side surface of the outermost template of the concrete mould), and then pouring concrete to obtain the cast-in-place concrete member 1.
(2) The fabricated concrete member 8 is installed on the cast-in-place concrete member 1.
(3) Fixedly mounting an integrated structure formed by a metal plate 3, section steel 5, angle steel 6 and a limiting plate 9 on the outer side surface of the cast-in-place concrete member 1 through bolts 4; during installation, the metal plate 3 is attached to the outer side surface of the cast-in-place concrete component 1, the installation hole in the metal plate 3 is aligned with the opening of the bolt embedded part 2, then the end part of the screw head of the bolt 4 penetrates through the installation hole to extend into the opening of the bolt embedded part 2, and a nut at the tail end of the bolt 4 (the nut and the tail end of the screw are in an integrated structure) is screwed by a tool and is tightened; finally, tightening all the bolts 4 respectively fastens the metal plate 3 to the outer side surface of the cast-in-place concrete member 1. Namely, the installation of an unsupported self-supporting section steel platform is completed.
(4) And continuously installing the unsupported self-supporting section steel platform at other positions on the same plane according to the steps.
(5) After all the unsupported self-supporting section steel platforms are installed, the outer scaffold 7 can be erected on the unsupported self-supporting section steel platforms, and the bottoms of all the steel pipes of the outer scaffold 7 can be correspondingly and directly inserted into the installation sleeve 10 at the tops of the unsupported self-supporting section steel platforms so as to prevent sliding.
The scope of the present invention is not limited to the technical solutions disclosed in the embodiments, and any modifications, equivalent substitutions, improvements, etc. made to the above embodiments according to the technical spirit of the present invention fall within the scope of the present invention.
Claims (10)
1. An unsupported self-supporting section steel platform comprises a cast-in-place concrete member (1), an assembled concrete member (8) and an external scaffold (7); the fabricated concrete member (8) is arranged on the top of the outer side surface of the cast-in-place concrete member (1); the outer scaffold (7) is installed in cast in place concrete member (1) and assembled concrete member (8) outside, its characterized in that: the steel plate is characterized by also comprising a bolt embedded part (2), a metal plate (3), a bolt (4), section steel (5), angle steel (6) and a limiting plate (9); the bolt embedded parts (2) are a plurality of expansion pipes which are embedded in the cast-in-place concrete member (1) and provided with internal threads inside, and the openings of the bolt embedded parts (2) are communicated with the outside; the metal plate (3) is attached to the outer side surface of the cast-in-place concrete member (1), and a plurality of mounting holes (11) are formed in the position, opposite to the opening part of the bolt embedded part (2), of the metal plate (3); the bolt (4) penetrates through the mounting hole from the outer side of the metal plate (3) and then is screwed into the inner hole of the bolt embedded part (2) to be in threaded connection with the bolt embedded part (2), and the metal plate (3) is fixed on the outer side surface of the cast-in-place concrete member (1); the cross section of the section steel (5) is I-shaped, one end of the section steel (5) is fixed on the outer side surface of the metal plate (3), and the other end of the section steel extends out reversely; the angle steel (6) is two right-angle bent plates which are respectively fixed on an included angle formed by the section steel (5) and the metal plate (3); the limiting plates (9) are two U-shaped metal plates which are fixed on the outer side face of the metal plate (3) in parallel and are respectively attached to two sides of the section steel (5), and the limiting plates (9) are clamped in grooves on the side faces of the section steel (5).
2. An unsupported, self-supporting steel platform according to claim 1, wherein: shaped steel (5), angle steel (6), limiting plate (9) all pass through welded fastening with metal sheet (3) lateral surface, and shaped steel (5) pass through welded fastening with angle steel (6).
3. An unsupported, self-supporting steel platform according to claim 1, wherein: the section of the angle steel (5) is L-shaped, right-angled triangle or right-angled trapezoid.
4. An unsupported, self-supporting steel platform according to claim 3, wherein: one right-angle surface of the angle steel (6) is attached and fixed on the section steel (5), and the other right-angle surface is attached and fixed on the outer side surface of the metal plate (3).
5. An unsupported, self-supporting steel platform according to claim 1, wherein: the bolt embedded part (2), the metal plate (3), the bolt (4), the section steel (5), the angle steel (6) and the limiting plate (9) are all made of metal materials.
6. An unsupported, self-supporting steel platform according to claim 1, wherein: the distance between the upper edge of the metal plate (3) and the upper edge of the section steel (5) is more than one third of the height of the metal plate (3).
7. An unsupported, self-supporting steel platform according to claim 1, wherein: a plurality of mounting sleeves (10) are arranged at the tops of the section steels (5), and the bottoms of all steel pipes of the external scaffold (7) are inserted into the mounting sleeves (10) one by one.
8. An unsupported, self-supporting steel platform according to any one of claims 1 to 7, characterised in that: the metal plate (3), the section steel (5), the angle steel (6) and the limiting plate (9) are of an integrated structure.
9. An unsupported, self-supporting steel platform according to any one of claims 1 to 7, characterised in that: the outer side surface of the cast-in-place concrete member (1) is a V-shaped corner surface; the V-shaped corner surface is an external corner surface or an internal corner surface, and the metal plate (3) correspondingly and cooperatively arranged on the V-shaped corner surface of the cast-in-place concrete member (1) is also a V-shaped corner plate.
10. An unsupported, self-supporting steel platform according to any one of claims 1 to 7, characterised in that: the included angle between the section steel (5) and the metal plate (3) is a right angle, an acute angle or an obtuse angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010359885.XA CN111364745A (en) | 2020-04-30 | 2020-04-30 | Unsupported self-supporting profile steel platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010359885.XA CN111364745A (en) | 2020-04-30 | 2020-04-30 | Unsupported self-supporting profile steel platform |
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| CN111364745A true CN111364745A (en) | 2020-07-03 |
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| CN202010359885.XA Pending CN111364745A (en) | 2020-04-30 | 2020-04-30 | Unsupported self-supporting profile steel platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459445A (en) * | 2020-12-04 | 2021-03-09 | 聂峻峰 | Overhanging type scaffold for constructional engineering |
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2020
- 2020-04-30 CN CN202010359885.XA patent/CN111364745A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459445A (en) * | 2020-12-04 | 2021-03-09 | 聂峻峰 | Overhanging type scaffold for constructional engineering |
| CN112459445B (en) * | 2020-12-04 | 2022-04-05 | 山东历控建设发展有限公司 | Overhanging type scaffold for constructional engineering |
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