CN110735526B - Assembled self-supporting scaffold system - Google Patents
Assembled self-supporting scaffold system Download PDFInfo
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- CN110735526B CN110735526B CN201911004981.6A CN201911004981A CN110735526B CN 110735526 B CN110735526 B CN 110735526B CN 201911004981 A CN201911004981 A CN 201911004981A CN 110735526 B CN110735526 B CN 110735526B
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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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/02—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension [1D] only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means
- E04G1/04—Scaffolds primarily resting on the ground composed essentially of members elongated in one dimension [1D] only, e.g. poles, lattice masts, with or without end portions of special form, connected together by any means the members being exclusively poles, rods, beams, or other members of similar form and simple cross-section
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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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/24—Scaffolds primarily resting on the ground comprising essentially special base constructions; comprising essentially special ground-engaging parts, e.g. inclined struts, wheels
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- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
本发明公布了一种拼装式自立脚手架系统，将格构柱式竖向立杆单元下端固定在钢制架体基础单元中，增加架体抗倾覆能力，在竖向立杆之间架设斜缀钢管、横缀钢管，能够防止竖向立杆单元的高向变形，通过横向水平杆将多列竖向立杆单元连接为一体，使多个竖向立杆单元作为传统架体的柱，将多个柱通过剪力撑连接，防止架体横向方向变形，改善了传统脚手架由于扣件抗转动刚度变化性较大，整个架体结构属于几何可变形体的现状。同时由于钢制架体基础单元具有可拆卸结构，利于自立脚手架的拆卸和循环周转利用。
The invention discloses an assembled self-supporting scaffolding system. The lower end of a lattice column-type vertical pole unit is fixed in a steel frame body base unit to increase the anti-overturning capability of the frame body, and slanted sashes are erected between the vertical poles. Steel pipes and horizontal steel pipes can prevent the vertical deformation of the vertical pole units. The vertical pole units of multiple columns are connected into one through the horizontal horizontal poles, so that the multiple vertical pole units can be used as the columns of the traditional frame body. Multiple columns are connected by shear braces to prevent the frame body from deforming in the lateral direction, which improves the current situation that the entire frame body structure belongs to a geometrically deformable body due to the large variability of the anti-rotational stiffness of the fasteners. At the same time, since the base unit of the steel frame body has a detachable structure, it is beneficial to the disassembly and recycling of the self-supporting scaffold.
Description
Technical Field
The invention relates to the technical field of old building scaffolds, in particular to an assembled self-standing scaffold system.
Background
With the improvement, the aging problem of the house building is increasingly prominent. The old building reinforcement and reconstruction projects are more and more. As old building reconstruction projects usually relate to integral structure removal or large-area demolition construction, partial projects adopt external scaffolds to enclose and shield a reconstructed building in a whole construction period in order to meet the dust control requirement and reduce the influence of social adverse effects. Meanwhile, the problem that the enclosure frame body is structurally attached to a wall in the structure dismantling construction stage exists in the reinforcement and reconstruction project, so that the enclosure frame body needs to meet the requirements of self stability of the frame body and resistance to external (impact) stress deformation through a self structure. The traditional external frame has the problem that the deformation resistance of the frame body is reduced sharply along with the increase of the free height of the frame body, and a wall attaching structure of an adjacent structure needs to be additionally arranged according to the standard requirement. Therefore, the assembled self-supporting scaffold system can conveniently and effectively solve the problems. Referring to fig. 1 to 2, the conventional scaffold has a self-supporting height of not more than 2 steps (about 4 m) without the wall connecting member 5. It is basically not used for the removal and reconstruction project of buildings with the conventional height.
Disclosure of Invention
The description aims at solving the problems that the traditional scaffold is insufficient in self-supporting height and easy to deform and destabilize, provides the lattice column type scaffold structure, and configures an easily-detachable assembly type foundation unit for the lattice column type scaffold unit to obtain the assembled self-supporting scaffold system which is convenient to detach, has an integral structure capable of being recycled, and simultaneously solves the problem that the free height of the double-row scaffold is too low under the condition of no structural attached wall.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides an assembled self-standing scaffold system, which comprises steel frame foundation units and vertical upright rod units, wherein the steel frame foundation units are connected end to end on the ground in parallel with the reconstruction surface of a building and are arranged into a row of box-shaped bases;
the vertical upright rod units are arranged in parallel with the building reconstruction surface at equal intervals and are in socket connection with the socket holes and the socket columns, and each vertical upright rod unit comprises 2 rows and 2 columns of vertical upright rods;
a plurality of obliquely-studded steel pipes which are connected end to end are erected on four vertical side surfaces of each vertical upright rod unit along the height direction, the span of each obliquely-studded steel pipe along the height direction of the vertical upright rod is one step, and two ends of each obliquely-studded steel pipe are connected with the vertical upright rods through steel pipe fasteners respectively;
in the vertical side surface vertical to the building modification surface, longitudinal horizontal cross bars are erected between adjacent vertical upright bars along the height direction at three steps, and transverse studded steel pipes are added between the upper and lower adjacent longitudinal horizontal cross bars at one step;
the vertical upright rod units are far away from the shielding surface of the building modification surface, a layer of transverse horizontal rods are arranged between every two adjacent vertical upright rod units along the height direction, at least two vertical upright rod units are fixed in the shielding surface by the shear braces which are arranged in a crossed manner, and the shear braces are connected with the transverse horizontal rods through steel pipe fasteners at intervals of 3 steps along the vertical upright rod direction; and a layer of transverse horizontal rods is arranged between every two adjacent vertical upright rod units at intervals of three steps along the height direction, a layer of transverse studded steel tubes is arranged between every two adjacent transverse horizontal rods, and each layer of transverse horizontal rods and each transverse studded steel tube are connected with each row of vertical upright rods in each row through steel tube fasteners.
Preferably, the adjacent steel frame body base units are connected at the head end and the tail end through fasteners.
Furthermore, the vertical rods, the transverse horizontal rods, the longitudinal horizontal cross rods, the obliquely studded steel pipes and the horizontally studded steel pipes adopt common building scaffold steel pipes.
Preferably, the vertical rod is a solid steel pipe filled with cement paste, and two ends of the solid steel pipe are provided with concave cavities for socket connection of the socket columns.
Preferably, the vertical upright rod intervals in the vertical upright rod units are set according to the conventional frame upright rod interval of 1.5 meters.
Preferably, when the height of the vertical rods in the vertical rod unit is greater than 8 meters, the distance between the vertical rods is set according to the length of less than 1.5 meters, and the counterweight filler is construction waste.
Preferably, the arrangement distance of the vertical upright rod units is not more than 3 meters.
Preferably, the arrangement distance of the vertical upright rod units is not more than 1.5 meters.
Preferably, the pitch of the vertical pole units obliquely lacing the steel pipes in the top area is increased, and the pitch of the adjacent transverse lacing steel pipes in the lower area is larger than that of the vertical pole units.
Preferably, the crossbeam and socket post and vertical pole setting clearance fit.
The invention has the beneficial effects that: through fixing the vertical pole setting unit lower extreme of lattice column type in steel support body basic unit, increase support body antidumping ability, erect the oblique steel pipe of decorating between vertical pole setting, violently decorate the steel pipe, can prevent the high to deformation of vertical pole setting unit, through horizontal horizon bar with multiseriate vertical pole setting unit connection as an organic whole, make the post of a plurality of vertical pole setting units as traditional support body, pass through the shearing force with a plurality of posts and prop the connection, prevent that the horizontal direction of support body from warping, traditional scaffold has been improved because the anti rotation rigidity variability of fastener is great, whole support body structure belongs to the current situation of the how much deformable body. The improved scaffold has the advantages that the improved scaffold has extremely strong anti-overturning and anti-deforming effects under the condition of no structure attached to a wall, and the self-supporting height far exceeding the traditional scaffold can be achieved. Different from the traditional scaffold, the scaffold can resist external stress only by means of attachment formed by wall connecting pieces and structures, and the assembled self-standing steel pipe scaffold has stronger resistance and applicability to unfavorable construction environments such as non-structural wall attachment and impact and damage of the external world on the scaffold body in the reinforcement and reconstruction construction project, and has wider application prospect in the reinforcement and reconstruction project. Moreover, the whole frame system is convenient to obtain materials and simple to erect, the anti-overturning steel frame body foundation unit and the simple transverse and inclined steel pipe structures are added on the basis of the traditional frame body, and the erected materials can be completely recycled, so that the popularization is greatly facilitated.
The arrangement density of the shielding surface of the lattice column type vertical upright rod unit is different from that of the transverse horizontal rods of the operation surface, and the transverse horizontal rods of the operation surface are less in arrangement, so that the operation frame has partial operation frame functions.
Steel support body basis unit demountable assembly does benefit to the dismantlement and the circulation turnover utilization of self-reliance scaffold, and does not set up the self-reliance scaffold system of steel support body basis unit, need to be pre-buried in the antidumping basis with the scaffold, forms wholly, and the vertical pole setting of this scaffold can only saw when demolising, can not circulate the turnover utilization. The counter weight filler adopts building rubbish, can draw materials on the spot, and the socket post can prevent that vertical pole setting from empting with the socket joint hole, fills the counter weight filler and reduces self-standing scaffold system's focus, and the riser is used for preventing steel support body basis unit from toppling as corbel support piece, and the pterygoid lamina increases the area of contact of steel support body basis unit and ground.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
Fig. 1 is a schematic front view of a conventional scaffolding system;
FIG. 2 is a schematic view of a conventional scaffolding system node A-A;
FIG. 3 is a schematic view of a shading surface of the erectable, self-standing steel pipe scaffold system of the present invention;
FIG. 4 is a schematic view of the working surface of the erectable, self-standing steel pipe scaffold system of the present invention;
FIG. 5 is a schematic cross-sectional view of a B-B plane of a node of the erectable, self-standing steel pipe scaffold system of the present invention;
FIG. 6 is a plan view, cross-sectional view of a steel frame foundation unit of the erectable, self-standing steel tubular scaffolding system of the present invention;
fig. 7 is a plan view illustrating related connection members of a steel frame base unit according to the present invention;
FIG. 8 is a schematic view of the vertical upright and horizontal cross bar fastener of the present invention in abutting engagement;
fig. 9 is a schematic plan and elevation view of a support member of the steel frame base unit of the present invention.
Wherein, 1 is vertical horizontal pole, 2 is vertical pole setting, 3 is horizontal pole, 4 is major structure, 5 is even wall spare, 6 is horizontal pole of sweeping the ground, 7 is for violently decorating the steel pipe, 8 is for decorating the steel pipe to one side, 9 is the counter weight filler, 10 is the steel pipe fastener, 11 is steel support body basic unit, 12 is the bridging, 13 is the crossbeam, 14 is the riser, 15 is the pterygoid lamina, 16 is the socket joint hole, 17 is the socket post, 18 is the groove case, 19 is the fastener, 20 is the connecting plate.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Referring to fig. 3, a sectional type self-standing scaffolding system includes a steel frame foundation unit 11 and lattice column type vertical pole units. Referring to fig. 6, the steel frame foundation units 11 comprise a tank 18, risers 14 symmetrically fastened and fixed on two sides of the tank 18, wings 15 welded on the bottom ends of the risers 14, crossbeams 13 fixed on the top end of the tank 18 at equal intervals, and counterweight fillers 9 filled in the tank 18, wherein the risers 14 are fastened and connected with connecting plates 20 welded on two sides of the tank 18, the wings 15 are anchored and fixed on the ground, the crossbeams 13 are detachably connected with tank walls on two sides of the tank 18, each crossbeam 13 is provided with a pair of socket holes 16 at intervals, a bottom plate of the tank 18 is provided with socket columns 17 facing the socket holes 16, a plurality of steel frame foundation units 11 are connected end to end on the ground parallel to the building modification surface through fasteners 19 and arranged into a row of box type bases, a plurality of vertical upright units are arranged parallel to the building modification surface at equal intervals and connected with the socket holes 16 and the socket columns 17, each vertical upright rod unit comprises 2 rows and 2 columns of vertical upright rods 2; the vertical upright rods 2 are solid steel pipes filled with cement paste, inner concave cavities are formed in the two ends of each solid steel pipe and are used for socket joint connection of the socket columns 17, a plurality of obliquely studded steel pipes 8 which are connected end to end are erected on at least three vertical side faces of each lattice column type steel pipe unit along the height direction, the span of each obliquely studded steel pipe 8 along the height direction of the vertical upright rods 2 is one step, and the two ends of each obliquely studded steel pipe 8 are respectively connected with the vertical upright rods 2 through steel pipe fasteners 10; in the vertical side surface vertical to the building modification surface, vertical horizontal cross bars are erected between adjacent vertical upright bars every three steps along the height direction, and transverse studded steel pipes 7 can be added between the vertical horizontal cross bars 1 in each lattice column type steel pipe unit every other step; at the shielding surface of the lattice column type steel pipe unit far away from the building modification surface, at least two lattice column type steel pipe units are fixed by cross-arranged shear braces 12 in the shared vertical side surface, and the shear braces 12 are connected with the transverse horizontal rod 3 through steel pipe fasteners 10 at intervals of 3 steps along the direction of the vertical rod 2; a layer of transverse horizontal rods 3 is arranged between adjacent lattice column type steel pipe units at intervals of 3 steps along the height direction, transverse studded steel pipes 7 are additionally arranged between the transverse horizontal rods 3 in each lattice column type steel pipe unit at intervals of one step, and each layer of transverse horizontal rods 3 and each layer of transverse studded steel pipes 7 are connected with each row of vertical rods 2 in each row through steel pipe fasteners 10. The steel frame base unit 11 and the vertical upright rod are fixedly connected through a cross beam 13.
Fig. 3 and 4 are only schematic diagrams, and are not integral structures, and specific data are related to the height and the length of the frame body. As shown in fig. 7, the vertical poles 2 adjacent to each other are butt-jointed and lengthened through steel pipe fasteners 10.
This kind of formula is arranged and is decomposed into a plurality of independent lattice column type steel pipe units with traditional scaffold body, and every lattice column type steel pipe unit is decorated steel pipe 7 and is decorated steel pipe 8 to one side through increasing and forms the cylindricality formula structure with every cell cube, through each column type cell cube structure of support body very big reinforcing support body overall structure rigidity, stability can. The column frame body is connected with the anti-overturning frame body foundation to form an assembled self-standing steel pipe scaffold system which can independently exist without a structure attached to a wall.
The installation process of the assembled self-supporting scaffold system comprises the following steps:
(1) positioning a base surface line snapping, leveling the base surface, placing and assembling a tank 18, as shown in fig. 6 and 7, connecting and fixing the head end and the tail end of the tank 18 through connecting plates and fasteners, then installing a cross beam 13, fastening and connecting vertical plates 14 on two sides of the tank 18, enabling wing plates 15 to be attached to the ground, and installing expansion bolts;
(2) inserting a vertical upright rod 2, erecting a transverse horizontal rod 3 as a floor sweeping rod 6 at a height of 200mm from the vertical upright rod 2 to the upper surface of a steel frame body base unit 11, and then sequentially erecting longitudinal horizontal cross rods 1;
(3) erecting a horizontal rod 3 of the next step and fastening the horizontal rod with the vertical upright rod 2, and erecting a longitudinal horizontal cross rod 1 and fastening the longitudinal horizontal cross rod with the vertical upright rod 2;
(4) after the vertical pole unit is erected to the height of 5 meters, inclined studded steel pipes 8 and transverse studded steel pipes 7 are arranged on three vertical side surfaces of the vertical pole unit from the sweeping pole 6 to each layer of height;
(5) the subsequent frame body is continuously heightened until the construction required height by adopting a mode of butting vertical steel pipes according to the frame body erection procedure;
(6) filling the steel frame body foundation unit 11 with the counterweight filler 9 according to actual conditions;
(7) and finally, arranging the cross braces 12 along the outer side of the frame body according to the standard requirements, finishing the construction of the self-supporting frame body structure system, and subsequently arranging other auxiliary facilities such as a hanging safety net, a skirting line, a warning sign, a laying construction springboard and the like.
The utility model relates to an assembled self-reliance scaffold system through changing support body structure structural style and increasing anti-overturning support body basis in order to reach the support body and can reach overall structure stability and splendid resistance deformability through self structure. Moreover, the form of the frame body is novel, construction and material taking are convenient, the material can be repeated and utilized at a high rate, the stress form is safe and reliable, the problem that the outer frame frequently encountered in the reinforcement and transformation project is not attached with a wall and is suspended can be conveniently and effectively solved, the impact damage to the frame body in the construction process of dismantling is greatly enhanced and resisted, and the method is a new breakthrough of the form of the outer scaffold frame body, can be used for reference in the follow-up similar transformation project (particularly along the transformation project), and has particularly remarkable social benefit because the safety influence range of the outer frame is wider.
The wind pressure resistance condition of the frame body is calculated by utilizing engineering calculation software PKPM steel structure design software 10 th edition V4.3, and parameters are calculated: the width of each row is 900mm, the distance between adjacent vertical upright posts is 1500mm, the height of an anti-overturning steel frame body foundation unit 11 is 1000mm, the width of the anti-overturning steel frame body foundation unit is 1400mm, the thickness of all steel members is calculated without considering deformation, the thickness is about 3 tons/m after being filled with a heavy object, the height of the frame body is 13 m, the air pressure is calculated according to the air pressure of a suburb of a city, steel Q235, the self-weight calculation increase coefficient of a beam and a column is 1.20, the rigidity increase coefficient of the beam is 1.00, the restraint number of a support is 1, the structural importance coefficient is 1.00, the total number of standard cross sections is 1, and the calculation information of live load considers the unfavorable arrangement of live load, the total number of nodes is.
The maximum horizontal displacement dx =32.749(mm) of the column top under the action of wind load < the allowable value of the displacement of the column top, H/200, H =13 m, and the anti-overturning moment: 119.08 × 0.7=83.356KN.m > 67.18KN.m, so the foundation meets the anti-overturning requirement.
The above-described embodiments of the assembled self-standing scaffold system of the present invention are not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention are intended to be included in the scope of the present invention as defined in the appended claims.
Claims (9)
1. An assembled self-standing scaffold system comprises steel frame foundation units and vertical upright rod units, and is characterized in that the steel frame foundation units are connected end to end on the ground in parallel with a building reconstruction surface and are arranged into a row of box-shaped bases, each steel frame foundation unit comprises a tank, vertical plates symmetrically fastened and fixed on two sides of the tank, wing plates welded at the bottom ends of the vertical plates, cross beams fixed at the top ends of the tank at equal intervals and counterweight fillers filled in the tank, the wing plates are fixedly anchored with the ground, the cross beams are detachably connected with tank walls on two sides of the tank, each cross beam is provided with a pair of socket holes spaced at intervals, and a socket column facing the socket holes is arranged on a tank bottom plate;
the vertical upright rod units are arranged in parallel with the building reconstruction surface at equal intervals and are in socket connection with the socket holes and the socket columns, and each vertical upright rod unit comprises 2 rows and 2 columns of vertical upright rods;
a plurality of obliquely-studded steel pipes which are connected end to end are erected on four vertical side surfaces of each vertical upright rod unit along the height direction, the span of each obliquely-studded steel pipe along the height direction of the vertical upright rod is one step, and two ends of each obliquely-studded steel pipe are connected with the vertical upright rods through steel pipe fasteners respectively;
in the vertical side surface vertical to the building modification surface, longitudinal horizontal cross bars are erected between adjacent vertical upright bars along the height direction at three steps, and transverse studded steel pipes are added between the upper and lower adjacent longitudinal horizontal cross bars at one step;
the vertical upright rod units are far away from the shielding surface of the building modification surface, a layer of transverse horizontal rods are arranged between every two adjacent vertical upright rod units along the height direction, at least two vertical upright rod units are fixed in the shielding surface by the shear braces which are arranged in a crossed manner, and the shear braces are connected with the transverse horizontal rods through steel pipe fasteners at intervals of 3 steps along the vertical upright rod direction; and a layer of transverse horizontal rods is arranged between every two adjacent vertical upright rod units at intervals of three steps along the height direction, a layer of transverse studded steel tubes is arranged between every two adjacent transverse horizontal rods, and each layer of transverse horizontal rods and each transverse studded steel tube are connected with each row of vertical upright rods in each row through steel tube fasteners.
2. The sectional self-standing scaffold system according to claim 1, wherein adjacent steel frame base units are connected at both end-to-end by fasteners.
3. The assembled self-standing scaffold system according to claim 1, wherein the vertical rods, the horizontal rods, the vertical horizontal cross rods, the obliquely studded steel tubes and the horizontally studded steel tubes are common building scaffold steel tubes.
4. The assembled self-standing scaffold system according to claim 1, wherein the vertical uprights are solid steel pipes filled with cement, and the two ends of each solid steel pipe are provided with concave cavities for socket connection of the socket columns.
5. The assembled self-standing scaffold system according to claim 1, wherein the vertical pole pitch in the vertical pole units is set according to a conventional frame pole pitch of 1.5 meters.
6. The assembled self-standing scaffold system according to claim 1, wherein the vertical pole units are arranged at vertical pole intervals of less than 1.5 meters when the height of the vertical poles is more than 8 meters, and the counterweight filler is construction waste.
7. The sectional, free-standing scaffold system according to claim 1, wherein said vertical pole units are arranged at a pitch of not more than 3 meters.
8. The sectional, free-standing scaffold system according to claim 1, wherein said vertical pole units are arranged at a pitch of not more than 1.5 meters.
9. The fabricated self-standing scaffold system of claim 1, wherein the vertical pole units have an increased pitch of obliquely-studded steel tubes in a top region, and the pitch of adjacent cross-studded steel tubes is greater than the pitch of adjacent cross-studded steel tubes in a lower region of the vertical pole units.
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| CN201911004981.6A CN110735526B (en) | 2019-10-22 | 2019-10-22 | Assembled self-supporting scaffold system |
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| CN201911004981.6A CN110735526B (en) | 2019-10-22 | 2019-10-22 | Assembled self-supporting scaffold system |
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| CN110735526B true CN110735526B (en) | 2021-04-02 |
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| CN115613801B (en) * | 2022-10-27 | 2026-01-06 | 中国建筑第五工程局有限公司 | Integrated attached lifting scaffolding climbing auxiliary device |
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| NZ336959A (en) * | 1999-07-28 | 2002-03-01 | Wui Loong Scaffolding Works Co | Scaffolding |
| JP2001164744A (en) * | 1999-12-06 | 2001-06-19 | Yuko Maintenance:Kk | Construction method for temporary structure and joint metal fixture for construction |
| US20070045048A1 (en) * | 2005-09-01 | 2007-03-01 | Wyse Steven J | Scaffold frame section with integral guard rail post |
| FR2892736B1 (en) * | 2005-10-27 | 2010-03-12 | Christian Ferriere | NEW TYPE OF BUILDING AND MEANS FOR ITS ACHIEVEMENT. |
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