CN111005547A - Construction method of external scaffold with two-way twist staggered floor vertical face - Google Patents
Construction method of external scaffold with two-way twist staggered floor vertical face Download PDFInfo
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- CN111005547A CN111005547A CN201911421533.6A CN201911421533A CN111005547A CN 111005547 A CN111005547 A CN 111005547A CN 201911421533 A CN201911421533 A CN 201911421533A CN 111005547 A CN111005547 A CN 111005547A
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- 238000007667 floating Methods 0.000 claims abstract description 9
- 238000005259 measurement Methods 0.000 claims abstract description 4
- 238000009415 formwork Methods 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000010408 sweeping Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 238000009432 framing Methods 0.000 description 7
- 238000000465 moulding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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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
- E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
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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
- E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
- E04G3/243—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons following the outside contour of a building
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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
- E04G5/16—Struts or stiffening rods, e.g. diagonal rods
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- Civil Engineering (AREA)
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- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a construction method of an external scaffold with a two-way twist staggered floor facade, which comprises the following steps: the construction method comprises the following steps of (a) measurement and positioning of vertical rods erected by scaffolds, (b) erection of outer scaffolds at corner arc positions, (c) processing of the relationship between a structural floating plate support and the outer scaffolds, (d) erection of scaffolds for an elevator shaft, (e) erection of outer scaffolds at construction elevator positions, (f) erection of construction inclined ladders, (g) arrangement of wall connecting pieces, wherein four corners of a bidirectional zigzag floor vertical building are arc-shaped, longitudinal horizontal rods and shear supports of the parts are pre-bent on site according to the structure radian, the outer facade of the outer scaffold is close to a main structure, and the shear supports are tightly combined with a frame body.
Description
Technical Field
The invention relates to the field of scaffolds, in particular to a construction method of an external scaffold with a bidirectional twist staggered floor vertical surface.
Background
Building science and technology develops till now, modern buildings have not only been restricted to the functionality that satisfies the use, under the prerequisite that satisfies each item basic function requirement, the aesthetic feeling of building molding is more emphasized, consequently, urge to produce a large amount of special-shaped buildings that appearance style differs greatly, to two-way twist staggered floor facade building, this figurative structure is two-way twist structure, the simultaneous existence of internal contraction and external expansion, the facade molding is complicated, unsmooth, can't adopt the construction of traditional double scaffold, in addition two-way twist staggered floor facade building, each floor has the shrink, can't satisfy the interior stand of external scaffold and be not more than 30 cm's requirement apart from the building limit.
Disclosure of Invention
In order to solve the problems, the invention provides a construction method of an outer scaffold of a two-way twist staggered floor vertical face, which is suitable for a two-way twist staggered floor vertical face building.
In order to achieve the purpose, the invention adopts the technical scheme that: the construction method of the external scaffold with the two-way twist staggered floor vertical surface comprises the following steps:
(a) and the measurement and positioning of the vertical rod erected by the scaffold: determining the position of the upright stanchion according to the arrangement of the outermost peripheral projection lines after the projections of the outermost peripheral side lines of each layer are overlapped to obtain a schematic plane diagram of each layer of projection lines and the scaffold;
(b) and erecting an outer scaffold at the corner arc position: the longitudinal horizontal rod and the shear brace at the corner arc position of the building are bent according to the structure radian, the vertical surface of the outer scaffold is close to the main structure, and the shear brace is tightly combined with the frame body;
(c) the structure is floated board and is supported and outer scaffold frame and set up the relation and handle: the erection of full-framing ultrahigh formwork supports between an outer scaffold and a structure is consistent with the progress of the outer scaffold, full-framing ultrahigh formwork top frames are used as inner-row protecting frames, the distance between the vertical rods of the innermost full-framing supporting frame and the outer side of the structure is not more than 300mm, full-framing ultrahigh formwork supports are arranged between the two rows of innermost outer scaffolds and the structure floating plate, the erection of the full-framing ultrahigh formwork supports is consistent with the progress of the outer scaffold, the full-framing ultrahigh formwork top frames are used as the inner-row protecting frames, the distance between the vertical rods of the innermost full-framing supporting frame and the outer side of the structure is not more than 300mm, a flat bridge is laid between the two rows of innermost vertical rods, and safety net protection is hung;
(d) and erecting a scaffold of the elevator shaft: the vertical rods are longitudinally spaced by 0.5-1.5 m, transversely spaced by 0.6-1.4 m and step-by-step by 1-3 m, the distance between the vertical rods and the wall is not more than 300mm, the vertical rods are arranged along the periphery of the hoistway, the horizontal rods must be tightly and firmly propped against the boundary beams or ring beams of each layer, and the reinforcing bar grid scaffold boards are fully paved on the construction operation layer;
(e) and erecting the construction elevator outside the position: the transverse distance between the vertical rods of the construction elevator platform is 0.6m-1.4m, the width of the vertical rods is the same as that of the outer scaffold, the construction elevator platform is independently erected and disconnected from the outer scaffold, rigid wall connecting pieces are arranged on each floor of the platform at both sides and the middle vertical rods, and the vertical rods of the outer scaffold at the disconnected positions are also provided with the rigid wall connecting pieces on each floor structure;
(f) and erecting a construction inclined ladder: the vertical distance of the inclined plate vertical rods of the stairs is 0.5m-1.5m, the vertical distance of the rest platform is 0.5m-1.5m, the transverse distances of the vertical rods of the stairs are 0.5m-2.5m, and the step distance of the vertical rods is 1.2-2.4 m;
(g) the wall connecting piece is arranged by adopting ø 48 steel pipes as the wall connecting piece, embedding ø 48 vertical short steel pipes at positions, corresponding to the inner vertical rods of the scaffold, on the outer boundary beam, extending out of the floor by about 100-300 mm, and tightly connecting the wall connecting piece with the embedded vertical steel pipes and the inner vertical rods of the outer scaffold through at least two right-angle fasteners, wherein the wall connecting piece is connected with a full-hall high formwork support frame body, the outer scaffold frame body is firmly connected with the full-hall high formwork support frame body in a steel pipe and fastener connection mode, and the corresponding full-hall high formwork support frame cannot be detached before the outer scaffold is detached.
Furthermore, the outer scaffold comprises a base, a vertical rod, a shear brace, a horizontal rod and a scaffold board, wherein the base is provided with a longitudinal floor sweeping rod and a transverse floor sweeping rod, and the transverse floor sweeping rod is fixed on the vertical rod close to the lower part of the longitudinal floor sweeping rod through a right-angle fastener; the horizontal rod comprises a longitudinal horizontal rod and a transverse horizontal rod, the longitudinal horizontal rod is fixed on the inner side of the vertical rod, the transverse horizontal rod is arranged below the longitudinal horizontal rod, and the cross braces are fixed on the extending ends of the transverse horizontal rods or the vertical rod which are intersected with the cross braces through rotating fasteners.
Furthermore, in the step (b), triangular reinforcing rods are arranged between the longitudinal horizontal rods at intervals along the bending arc direction.
Furthermore, the number of the cross vertical rods of each cross brace is set to be 5-7, the width of each cross brace is not less than 4 spans and not less than 6m, the inclination angle between each cross brace and the ground is preferably 45-60 degrees, the cross braces are connected with the vertical columns through rotating buckles, the distance from the central line of each rotating buckle to the main node is not more than 150mm, and the cross braces are lapped and fixed through at least three buckles.
Further, the external scaffold is built in sections by dividing the basement and the ground structure.
Further, in the step (b), the distance between the inner upright post of the outer scaffold flat bridge and the outer side of the floating plate line or the outer wall edge is not more than 30cm, the width of the flat bridge is 60cm-140cm, and the flat bridge is widened inwards.
Furthermore, the width of the flat bridge is larger than 40cm, and the small cross rod of the widened inner column is provided with an inclined strut or an inner upright rod at the inner side.
Further, in the step (d), after concrete is poured into the floor structure, safety protection railings are arranged on the periphery of the structure, and dense safety nets are fully hung.
Further, in the step (d), a protective railing and a skirting board are arranged on the operation layer of the baseboard, the height of the skirting board is 150mm-200mm, and the number of the protective railings is at least 2.
The invention has the beneficial effects that: four corners of the two-way zigzag staggered-floor vertical building are arc-shaped, the longitudinal horizontal rods and the cross braces at the position are pre-bent on site according to the structure radian, the outer vertical surface of the outer frame is close to the main body structure, and the cross braces are tightly combined with the frame body, so that the building is suitable for the two-way zigzag staggered-floor vertical building; the construction method is characterized in that each floor of the building stretches and contracts, a large number of floating plate supports exist, the construction method processes the relationship between the structure floating plate supports and the outer scaffold, full-space ultrahigh formwork supports are arranged between the outer scaffold and the structure floating plates, full-space ultrahigh formwork top frames are used as inner row protective frames to be erected together with the outer scaffold, and the whole outer scaffold system is safer.
Drawings
Fig. 1 is a schematic plan view of each floor of projection lines and scaffold erection.
Fig. 2 is a schematic structural view of an external scaffold.
Fig. 3 is an elevation view of an arc position of an outer scaffold erecting corner.
Fig. 4 is a front elevation view of the construction inclined ladder.
Fig. 5 is a side elevation view of the construction elevator outrigger.
Detailed Description
Referring to fig. 1 to 5, the present invention relates to a construction method of an external scaffold with a two-way twisted split-level facade, comprising the following steps:
(a) and the measurement and positioning of the vertical rod erected by the scaffold: determining the position of the upright stanchion according to the arrangement of the outermost peripheral projection lines after the projections of the outermost peripheral side lines of each layer are overlapped to obtain a schematic plane diagram of each layer of projection lines and the scaffold;
(b) and erecting an outer scaffold at the corner arc position: the longitudinal horizontal rod 8 and the shear brace 9 at the corner arc position of the building are bent according to the structure radian, the vertical surface of the external scaffold is close to the main structure, and the shear brace 9 is tightly combined with the frame body;
(c) the structure is floated board and is supported and outer scaffold frame and set up the relation and handle: a full-hall ultrahigh formwork support is arranged between the outer scaffold and the structural floating plate, the erection of the full-hall ultrahigh formwork support is consistent with the progress of the outer scaffold, a full-hall ultrahigh formwork top frame is used as an inner row protective frame, the distance between the vertical rods of the innermost full-hall support frame and the outer side of the structure is not more than 300mm, a flat bridge is laid between the two rows of vertical rods at the innermost side, and a safety net is hung for protection;
(d) and erecting a scaffold of the elevator shaft: the vertical rods are longitudinally spaced by 0.5-1.5 m, transversely spaced by 0.6-1.4 m and step-by-step by 1-3 m, the distance between the vertical rods and the wall is not more than 300mm, the vertical rods are arranged along the periphery of the hoistway, the horizontal rods must be tightly and firmly propped against the boundary beams or ring beams of each layer, and the reinforcing bar grid scaffold boards are fully paved on the construction operation layer;
(e) and erecting the construction elevator outside the position: the transverse distance between the vertical rods of the construction elevator platform is 0.6m-1.4m, the width of the vertical rods is the same as that of the outer scaffold, the construction elevator platform is independently erected and disconnected from the outer scaffold, rigid wall connecting pieces are arranged on each floor of the platform at both sides and the middle vertical rods, and the vertical rods of the outer scaffold at the disconnected positions are also provided with the rigid wall connecting pieces on each floor structure;
(f) and erecting a construction inclined ladder: the vertical distance of the inclined plate vertical rods of the stairs is 0.5m-1.5m, the vertical distance of the rest platform is 0.5m-1.5m, the transverse distances of the vertical rods of the stairs are 0.5m-2.5m, and the step distance of the vertical rods is 1.2-2.4 m;
(g) the wall connecting piece is arranged by adopting ø 48 steel pipes as the wall connecting piece, embedding ø 48 vertical short steel pipes at positions, corresponding to the inner vertical rods of the scaffold, on the outer boundary beam, extending out of the floor by about 100-300 mm, and tightly connecting the wall connecting piece with the embedded vertical steel pipes and the inner vertical rods of the outer scaffold through at least two right-angle fasteners, wherein the wall connecting piece is connected with a full-hall high formwork support frame body, the outer scaffold frame body is firmly connected with the full-hall high formwork support frame body in a steel pipe and fastener connection mode, and the corresponding full-hall high formwork support frame cannot be detached before the outer scaffold is detached.
In the embodiment, referring to fig. 2, the external scaffold comprises a base 1, a vertical rod 2, a shear brace 3, a horizontal rod and a scaffold board, wherein the base 1 is provided with a longitudinal floor sweeping rod 4 and a transverse floor sweeping rod 5, and the transverse floor sweeping rod 5 is fixed on the vertical rod 2 close to the lower part of the longitudinal floor sweeping rod 4 through a right-angle fastener; the horizontal rod comprises a longitudinal horizontal rod and a transverse horizontal rod, the longitudinal horizontal rod is fixed on the inner side of the vertical rod 1, the transverse horizontal rod is arranged below the longitudinal horizontal rod, and the cross braces 3 are fixed on the extending ends of the transverse horizontal rods intersected with the cross braces or the vertical rod 1 through rotating fasteners.
In this embodiment, referring to fig. 3, in step (b), triangular reinforcing rods are arranged between the longitudinal horizontal rods 8 and the longitudinal horizontal rods 8 at intervals along the bending arc direction.
In the embodiment, the number of the cross struts 9 crossing the vertical rods 2 is 5-7, the width of each cross strut 9 is not less than 4 spans and not less than 6m, the inclination angle between the cross strut 9 and the ground is preferably 45-60 degrees, the cross struts 9 are connected with the vertical columns through rotating buckles, the distance from the central line of each rotating buckle to the main node is preferably not more than 150mm, and the cross struts 9 are lapped and fixed through at least three buckles.
In the embodiment, the external scaffold is erected in sections by the basement and the ground structure.
In this embodiment, in the step (c), the distance between the inner upright post of the outer scaffold flat bridge and the outer side of the flashboard line or the outer wall edge is not more than 30cm, the width of the flat bridge is 60cm-140cm, and the flat bridge is widened inwards.
Furthermore, the width of the flat bridge is larger than 40cm, and the small cross rod of the widened inner column is provided with an inclined strut or an inner upright rod at the inner side.
In this embodiment, in step (d), after the concrete is poured into the floor structure, the safety protection railings are arranged on the periphery of the structure, and the dense safety nets are fully hung.
Further, in the step (d), a protection railing and a skirting board are arranged on the operation layer of the scaffold board, the height of the skirting board is 150mm-200mm, the number of the protection railings is at least 2, preferably, the height of the skirting board is 180mm, and the number of the protection railings is 2.
The above embodiments are merely illustrative of the preferred embodiments of the present invention, and not restrictive, and various changes and modifications to the technical solutions of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are intended to fall within the scope of the present invention defined by the appended claims.
Claims (9)
1. The construction method of the external scaffold with the two-way twist staggered floor vertical surface is characterized by comprising the following steps: the method comprises the following steps:
(a) and the measurement and positioning of the vertical rod erected by the scaffold: determining the position of the upright stanchion (1) according to the arrangement of the outermost peripheral projection lines after the projection overlapping of the outermost peripheral edge lines of each layer to obtain a schematic plane diagram of the projection lines of each layer and the scaffold;
(b) and erecting an outer scaffold at the corner arc position: a longitudinal horizontal rod (8) and a shear brace (9) at the corner arc position of the building are bent according to the structure radian, the vertical surface of the external scaffold is close to the main structure, and the shear brace (9) is tightly combined with the frame body;
(c) the structure is floated board and is supported and outer scaffold frame and set up the relation and handle: a full-hall ultrahigh formwork support is arranged between the outer scaffold and the structural floating plate, the erection of the full-hall ultrahigh formwork support is consistent with the progress of the outer scaffold, a full-hall ultrahigh formwork top frame is used as an inner row protective frame, the distance between the vertical rods of the innermost full-hall support frame and the outer side of the structure is not more than 300mm, a flat bridge is laid between the two rows of vertical rods at the innermost side, and a safety net is hung for protection;
(d) and erecting a scaffold of the elevator shaft: the vertical rods are longitudinally spaced by 0.5-1.5 m, transversely spaced by 0.6-1.4 m and step-by-step by 1-3 m, the distance between the vertical rods and the wall is not more than 300mm, the vertical rods are arranged along the periphery of the hoistway, the horizontal rods must be tightly and firmly propped against the boundary beams or ring beams of each layer, and the reinforcing bar grid scaffold boards are fully paved on the construction operation layer;
(e) and erecting the construction elevator outside the position: the transverse distance between the vertical rods of the construction elevator platform is 0.6m-1.4m, the width of the vertical rods is the same as that of the outer scaffold, the construction elevator platform is independently erected and disconnected from the outer scaffold, rigid wall connecting pieces are arranged on each floor of the platform at both sides and the middle vertical rods, and the vertical rods of the outer scaffold at the disconnected positions are also provided with the rigid wall connecting pieces on each floor structure;
(f) and erecting a construction inclined ladder: the vertical distance of the inclined plate vertical rods of the stairs is 0.5m-1.5m, the vertical distance of the rest platform is 0.5m-1.5m, the transverse distances of the vertical rods of the stairs are 0.5m-2.5m, and the step distance of the vertical rods is 1.2-2.4 m;
(g) the wall connecting piece is arranged by adopting ø 48 steel pipes as the wall connecting piece, embedding ø 48 vertical short steel pipes at positions, corresponding to the inner vertical rods of the scaffold, on the outer edge beam, extending out of the floor by about 100-300 mm, and connecting the wall connecting piece with the embedded vertical steel pipes and the inner vertical rods of the outer scaffold respectively in a fastening manner through at least two right-angle fasteners, when part of the outer scaffold is far away from the outer side of the flashboard line or the outer wall edge, the wall connecting piece is connected with a full-hall high formwork support frame body, the outer scaffold body is firmly connected with the full-hall high formwork support frame body through steel pipes and fasteners, and the corresponding full-hall high formwork support frame cannot be detached before the outer scaffold is detached.
2. The method for constructing an external scaffold of a two-way twisted split-level facade according to claim 1, wherein: the outer scaffold comprises a base (1), a vertical rod (2), a shear brace (3), a horizontal rod and a scaffold board, wherein a longitudinal floor sweeping rod (4) and a transverse floor sweeping rod (5) are arranged on the base (1), and the transverse floor sweeping rod (5) is fixed on the vertical rod (2) close to the lower part of the longitudinal floor sweeping rod (4) through a right-angle fastener; the horizontal rod comprises a longitudinal horizontal rod and a transverse horizontal rod, the longitudinal horizontal rod is fixed on the inner side of the vertical rod (1), the transverse horizontal rod is arranged below the longitudinal horizontal rod, and the cross braces (3) are fixed on the extending ends of the transverse horizontal rods intersected with the cross braces or the vertical rod (1) through rotating fasteners.
3. The method for constructing an external scaffold of a two-way twisted split-level facade according to claim 1, wherein: in the step (b), triangular reinforcing rods are arranged between the longitudinal horizontal rods at intervals along the bending arc direction.
4. The method for constructing an external scaffold of a two-way twisted split-level facade according to claim 1, wherein: the number of the cross vertical rods (2) crossed by each cross brace (9) is set to be 5-7, the width of each cross brace (9) is not less than 4 spans and not less than 6m, the inclination angle between each cross brace (9) and the ground is preferably 45-60 degrees, the cross braces (9) are connected with the vertical columns through rotating buckles, the distance from the central line of each rotating fastener to the main node is not more than 150mm, and the cross braces (9) are lapped and fixed through at least three fasteners.
5. The method for constructing an external scaffold of a two-way twisted split-level facade according to claim 1, wherein: the external scaffold is built by sections of basement and ground structure.
6. The method for constructing an external scaffold of a two-way twisted split-level facade according to claim 1, wherein: in the step (c), the distance between the inner upright post of the outer scaffold flat bridge and the outer side of the floating plate line or the outer wall edge is not more than 30cm, the width of the flat bridge is 60cm-140cm, and the flat bridge is widened inwards.
7. The method for constructing an external scaffold of a two-way twisted split-level facade according to claim 6, wherein: the width of the flat bridge is larger than 40cm, and the small cross rod of the widened inner column is provided with an inclined strut or an inner upright rod at the inner side.
8. The method for constructing an external scaffold of a two-way twisted split-level facade according to claim 1, wherein: in the step (d), after concrete is poured into the floor structure, the periphery of the structure is provided with safety protection railings and is fully hung with a dense mesh safety net.
9. The method for constructing an external scaffold of a two-way twisted split-level facade according to claim 8, wherein: in the step (d), the operating layer of the scaffold board is provided with protective railings and skirting boards, the height of each skirting board is 150-200 mm, and the number of the protective railings is at least 2.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126211A (en) * | 2022-06-23 | 2022-09-30 | 恩施清江大龙潭水电开发有限公司 | Scaffold erecting method |
| CN115749239A (en) * | 2022-11-04 | 2023-03-07 | 中国二十冶集团有限公司 | Building method for building scaffold at arc position of building |
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