External scaffold structure of large-space building frame structure

Abstract

The utility model relates to the field of building construction, and provides an external scaffold structure of a large-space building frame structure. Comprising a scaffold, the scaffold is fixedly connected with a constructed floor through a wall attaching structure, a row of connecting structures are installed on the constructed floor and comprise stand columns, diagonal draw bars are connected to the side faces of the stand columns, the diagonal draw bars and the scaffold are distributed on the two sides of the stand columns, and one ends of the diagonal draw bars are hinged to the tops of the stand columns; the other end of the diagonal draw bar is hinged to a connecting base fixedly installed on a constructed floor. An inner pipe is inserted in the stand column, the inner pipe stretches up and down along the axis of the stand column, the inner pipe and the stand column are limited through a pin, and the scaffold is connected with the inner pipe through a connecting rod. Supporting points are provided for the scaffold on the outer side through the wall attaching structure pre-buried in the floor and the stand column structure fixedly installed on the floor, stable connection is formed through the connecting rods and the supporting points, the requirements of building construction standards are met, and meanwhile the safety of scaffold construction is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building construction, and specifically relates to an outer scaffold structure of a large-space building frame structure. BACKGROUND

[0002] In a house building structure, a large-space frame structure is widely used in public building projects such as workshops, office buildings, schools and hotels, and is very popular due to its flexible and changeable layout. The span of such a building frame structure is about 8 meters, and the layer height is more than 4.5 meters. For non-super high-rise buildings, the outer scaffold in the building construction process is mostly of the floor type or cantilever type. In recent years, with the wide use of socket type disc type steel pipe scaffolds, safety problems have also been highly valued by enterprises. The setting of the wall connecting piece of the working scaffold used as a scaffold directly affects the safety of the working scaffold.

[0003] According to the specification requirements of the Safety Technical Standard for Socket Type Disc Type Steel Pipe Scaffolds for Building Construction JGJ / T231-2021, the wall connecting piece of the same layer should be on the same horizontal plane, the horizontal spacing should not be greater than 3 spans, and the cantilever height of the scaffold above the wall connecting piece should not exceed 2 steps. For workshops and public buildings, the span of the outer scaffold is not greater than 1.5 meters, the step distance of the scaffold is not greater than 1.8 meters, and during the structure construction process, the erection height of the scaffold is required to be more than 1.2 meters higher than the working layer. At this time, for the wall connecting piece of the outer working scaffold, the length of 3 spans in the horizontal direction is about 4.5 meters, which is generally in the middle position of the column distance. When the constructed outer scaffold is connected with the beam plate, the cantilever height of the outer scaffold is generally more than 5.2 meters, which exceeds the height of 3.6 meters of two-step scaffolds, and the structure being constructed is not allowed to be connected with the formwork support frame, that is, the wall connecting piece has no reliable attachment point during the structure construction process. In order to ensure safety, the outer scaffold connecting structure needs to be designed to ensure the safety of construction. SUMMARY

[0004] In order to meet the requirements of the scaffold construction specification during the construction of a large-space building frame structure, the utility model provides an outer scaffold structure of a large-space building frame structure.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] The outer scaffold structure of a large-space building frame structure comprises a scaffold, a three-dimensional frame formed by a plurality of vertical upright poles and a plurality of horizontal cross poles connected by disc buckles, the bottom of the scaffold is supported on the ground or a building platform, the scaffold is fixedly connected with a constructed floor through a wall-attached structure, a row of connecting structures are installed on the constructed floor, the connecting structures are located at the edge of the constructed floor close to the scaffold, the row of connecting structures are distributed at equal intervals along the length direction of the scaffold, the connecting structure comprises a stand column, the bottom of the stand column is provided with a bottom plate fixed to the constructed floor, the side surface of the stand column is connected with a diagonal pull rod, the diagonal pull rod is distributed on both sides of the stand column, one end of the diagonal pull rod is hingedly connected with the top of the stand column, and the other end of the diagonal pull rod is hingedly connected with a connecting base fixedly installed on the constructed floor; an inner tube is inserted into the stand column and can be telescopically extended upward and downward along the axis of the stand column, the inner tube and the stand column are limited by a pin, and the scaffold is connected with the inner tube through a connecting rod.

[0007] Further, the connecting rod is fixedly connected with two upright poles on the scaffold through disc buckles, the connecting rod extends from the scaffold to the constructed floor and is connected with the inner tube through a connecting ring, a plurality of through holes are arranged at equal intervals on the inner tube from top to bottom, the connecting ring is a U-shaped tube, two ends of the connecting ring are respectively welded with screw rods, the screw rods are correspondingly matched with the through holes, and lock nuts are respectively installed on the screw rods; and the connecting rod is fixedly connected with the connecting ring through disc buckles.

[0008] Further, the pin passes through the through holes in the inner tube and the stand column to fix the inner tube and the stand column.

[0009] Further, the wall-attached structure comprises a vertical embedded tube located at the edge of the constructed floor, and the scaffold is connected and fixed with the embedded tube through a connecting tube and disc buckles.

[0010] Further, the bottom plate comprises two steel plates respectively located at the upper side and the lower side of the constructed floor, the two steel plates are fixedly connected through four bolts, and the stand column is fixedly welded to the upper steel plate.

[0011] Further, the diagonal pull rod comprises a diagonal pull sleeve and a diagonal pull screw rod, the diagonal pull screw rod is matched with the internal thread of the diagonal pull sleeve, the diagonal pull sleeve is connected with the stand column, and the diagonal pull screw rod is connected with the connecting base.

[0012] Further, the connecting base comprises two steel plates respectively located at the upper side and the lower side of the constructed floor, the two steel plates are fixedly connected through four bolts, and the center of the upper steel plate is welded with an ear plate with a connecting hole.

[0013] After the above technical scheme is adopted, the building frame structure has the following beneficial effects:

[0014] The outer side scaffold is supported by the wall-attached structure embedded in the floor and the column structure fixedly installed on the floor, and is stably connected with the support points by connecting rods, so that the construction standard requirements are met and the safety of the scaffold construction is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structure of the utility model is shown in the schematic diagram.

[0016] In the drawing: the scaffold 1, the embedded pipe 2, the connecting pipe 3, the column 4, the bottom plate 5, the inclined pull rod 6, the inclined pull sleeve 61, the inclined pull screw 62, the connecting base 7, the inner pipe 8, the connecting rod 9, the connecting ring 10, the screw 11. DETAILED DESCRIPTION

[0017] The specific embodiment of the utility model is further described in detail in combination with the accompanying drawings:

[0018] As shown in the drawing, the outer scaffold structure of the large-space building frame structure is composed of a scaffold main body and a connecting structure between the scaffold and the floor, and is used for the construction of the large-space frame structure with a span of more than 8 meters and a layer height of more than 4.5 meters.

[0019] The scaffold 1 is a three-dimensional frame formed by a plurality of vertical columns and a plurality of horizontal rods through disc buckle connection, and the bottom of the scaffold 1 is supported on the ground or the building platform. In order to ensure the stability of the scaffold and meet the requirements of the construction, the scaffold 1 is fixedly connected with the constructed floor of each layer through the wall-attached structure, and a fixed support structure is installed on the constructed floor for further reinforcing the scaffold in the height direction.

[0020] The wall-attached structure is generally a vertical embedded pipe 2 or other structure embedded part at the edge of the constructed floor, and the scaffold 1 is connected and fixed with the embedded pipe 2 through the connecting pipe 3 and the disc buckle, or is connected and limited with other embedded parts through the steel wire rope.

[0021] The support structure mainly comprises a column 4, the bottom of the column 4 is provided with a bottom plate 5, the bottom plate is made of steel plate, the steel plate is fixed on the floor by four bolts, or the bottom plate 5 comprises steel plates respectively on the upper and lower sides of the constructed floor, the two steel plates are fixedly connected by four bolts. The column 4 is fixedly welded to the upper steel plate. The fixed column 4 provides a fulcrum for connecting with the scaffold. The column 4 is connected with a diagonal rod 6 on the side, the diagonal rod 6 is distributed on both sides of the column 4, one end of the diagonal rod 6 is hinged to the top of the column, and the other end of the diagonal rod 6 is hinged to a connecting base 7 fixedly installed on the constructed floor. The structure of the connecting base 7 is the same as that of the bottom plate 5 of the column 4. The diagonal rod 6 is composed of a diagonal sleeve 61 and a diagonal screw 62, the diagonal screw 62 is matched with the internal thread of the diagonal sleeve 61, the diagonal sleeve 61 is connected with the column, and the diagonal screw 62 is connected with the connecting base 7. Before installation, the length adjustment of the diagonal rod 6 can be realized by rotating the diagonal sleeve 61.

[0022] Since the spacing of the connection points in the vertical direction of the scaffold is large, more than three meters, in order to avoid that the column is too long to be hoisted and installed, an inner tube 8 is inserted into the column 4, and the inner tube 8 is telescopic to reach a height of more than three meters. The inner tube 8 is telescopic up and down along the axis of the column, and the inner tube 8 is limited by a pin between the column. The scaffold 1 is connected with the inner tube 8 through a connecting rod 9 and a connecting ring 10.

[0023] The connecting ring 10 is a U-shaped tube, both ends of the connecting ring are welded with a screw rod 11, a plurality of through holes are arranged on the inner tube 8 at equal intervals from top to bottom, the screw rod 11 is matched with the through hole, and a locking nut is arranged on the screw rod to fix the connecting ring 10 outside the inner tube. The connecting rod 9 is fixedly connected with two vertical rods of the scaffold 1 through a disc buckle and extends to the connecting ring 10, and is fixed with the connecting ring 10 through the disc buckle, so as to fix the scaffold 1.

[0024] A row of support structures are installed on the constructed floor and are distributed at equal intervals along the length direction of the scaffold 1 to provide sufficient connection support.

Claims

1. An external scaffolding structure for a large-space building frame structure, comprising scaffolding, the scaffolding being a three-dimensional frame formed by multiple vertical uprights and multiple horizontal crossbars connected by interlocking clips, the bottom of the scaffolding being supported on the ground or a building platform, and the scaffolding being fixedly connected to the constructed floor slab via a wall-attached structure, characterized in that... A row of connecting structures is installed on the constructed floor surface. The connecting structures are located at the edge of the constructed floor surface near the scaffold. The row of connecting structures is evenly distributed along the length of the scaffold. Each connecting structure includes a column, with a base plate at the bottom of the column, which is fixed to the constructed floor surface. Diagonal braces are connected to the sides of the column. The diagonal braces and the scaffold are distributed on both sides of the column. One end of the diagonal brace is hinged to the top of the column, and the other end of the diagonal brace is hinged to a connecting base fixed on the constructed floor surface. An inner tube is inserted into the column, which extends and retracts along the axis of the column. The inner tube is limited to the column by a pin. The scaffold is connected to the inner tube by a connecting rod.

2. The external scaffolding structure for a large-space building frame structure according to claim 1, characterized in that, The connecting rod is fixedly connected to two uprights on the scaffold via a disc buckle. The connecting rod extends from the scaffold to the constructed floor and is connected to the inner tube via a connecting ring. The inner tube has multiple equally spaced through holes from top to bottom. The connecting ring is a U-shaped tube with screws welded to both ends. The screws mate with the through holes, and locking nuts are installed on the screws. The connecting rod is fixedly connected to the connecting ring via a disc buckle.

3. The external scaffolding structure for a large-space building frame structure according to claim 2, characterized in that, The pin passes through the through hole on the inner tube and the column to fix the inner tube to the column.

4. The external scaffolding structure for a large-space building frame structure according to claim 1, characterized in that, The wall-mounted structure includes vertical embedded pipes located at the edge of the constructed floor surface, and the scaffolding is connected and fixed to the embedded pipes via connecting pipes and disc buckles.

5. The external scaffolding structure for a large-space building frame structure according to claim 1, characterized in that, The base plate includes steel plates on the upper and lower sides of the constructed floor, respectively. The two steel plates are fixedly connected by four bolts, and the column is fixedly welded to the upper steel plate.

6. The external scaffolding structure for a large-space building frame structure according to claim 1, characterized in that, The tie rod includes a tie sleeve and a tie screw. The tie screw is threaded with the tie sleeve. The tie sleeve is connected to the column, and the tie screw is connected to the connecting base.

7. The external scaffolding structure for a large-space building frame structure according to claim 6, characterized in that, The connecting base includes steel plates on the upper and lower sides of the constructed floor, respectively. The two steel plates are fixedly connected by four bolts, and an ear plate with a connecting hole is welded to the center of the upper steel plate.

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