High-staggered-floor cantilever scaffold and safe arrangement method

Abstract

The invention discloses a high staggered-floor overhanging scaffold and a safe arrangement method, and relates to the technical field of staggered-floor overhanging scaffolds.The high staggered-floor overhanging scaffold comprises a staggered-floor overhanging frame, and the staggered-floor overhanging frame is composed of a left overhanging layer, a staggered-floor overhanging layer, a right overhanging layer, a first row of conduction inclined rods, a second row of conduction inclined rods, a third row of conduction inclined rods and reinforcing inclined rods; the left cantilever layer and the split-level cantilever layer are reference layers with high fixed supports, and the supports are located on cantilever I-shaped steel of the left cantilever structure layer and the right cantilever structure layer respectively; the right cantilever layer is lower than the reference layer and located between the left cantilever layer and the staggered cantilever layer. The shearing resistance and the bending resistance between the block scaffolds are increased by controlling the distance between the vertical rods on the sides of the block scaffolds, the first row of transverse rods, namely the first row of longitudinal rods of the cantilever layer are controlled to meet the whole-line penetrating requirement, penetrating is carried out at the intersection position where the block is most prone to shearing damage, the integrity of the scaffold body is guaranteed, and corner tearing damage is avoided.

Description

Technical Field

[0001] This invention relates to the field of staggered cantilever scaffolding technology, specifically to a high staggered cantilever scaffolding and a safe arrangement method. Background Technology

[0002] Currently, with the diversification of architectural forms, outward-protruding staggered structures, due to their unique artistic expression and spatial functionality, have gradually become the preferred form for landmark buildings such as commercial complexes and fourth-generation buildings, winning market recognition. During the construction of such structures, the staggered structure makes it impossible to ensure that the scaffold supports are on the same floor using traditional methods. At the same time, in order to ensure that the external scaffold does not affect the subsequent general construction needs, cantilevered scaffolding can be used. When the cantilevered protrusion is large, in order to avoid the cantilevered I-beams being too long and to ensure the safety of the scaffolding structure, it is necessary to use the staggered cantilever structure as the stress point of the cantilevered I-beams, and the cantilevered scaffold supports must be arranged in a staggered manner.

[0003] When staggered scaffolding is used, the height difference between the intersecting support layers and the scaffold structure can cause uneven stress distribution under construction loads and external forces, posing a certain risk to the safety and stability of the scaffold structure. Traditional scaffolding construction methods do not take into account the special characteristics of the structure and the weak points of the overall stress distribution. This paper proposes an arrangement method to improve the safety of staggered cantilever scaffolding, which is specifically designed for this type of scaffolding. It fully considers the key nodes and weak points of the scaffold structure to ensure the safety and stability of the scaffold structure during construction. Summary of the Invention

[0004] The purpose of this invention is to provide a high-level staggered cantilever scaffold and a safe arrangement method to solve the problems existing in the background art.

[0005] The objective of this invention can be achieved through the following technical solutions: A high staggered cantilever scaffold includes a staggered cantilever frame, which consists of a left cantilever layer, a staggered cantilever layer, a right cantilever layer, a first row of conduction diagonal braces, a second row of conduction diagonal braces, a third row of conduction diagonal braces, and reinforcing diagonal braces. The left cantilever layer and the staggered cantilever layer are reference layers with higher supports, and their supports are respectively located on the cantilevered I-beams of the left cantilever structural layer and the right cantilever structural layer. The right cantilever layer is lower in height than the base layer and is located between the left cantilever layer and the staggered cantilever layer. The cantilevered I-beam is fixed to the staggered cantilever structure layer.

[0006] As a further embodiment of the present invention: the left cantilever layer, the staggered cantilever layer, and the right cantilever layer are all composed of cantilevered I-beams, side rows of uprights, middle rows of uprights, other uprights, the first row of horizontal bars, and other horizontal bars; The left cantilever layer, the staggered cantilever layer, and the right cantilever layer are connected not only by the first row of horizontal bars and other horizontal bars, but also by the first row of conducting diagonal bars, the second row of conducting diagonal bars, and the third row of conducting diagonal bars arranged crosswise on the inside of other uprights to form an integral connection.

[0007] As a further aspect of the present invention: the side row uprights are the side row uprights at both ends of the left cantilever layer, the staggered cantilever layer, and the right cantilever layer, and the distance between two adjacent side row uprights does not exceed 500mm.

[0008] As a further aspect of the present invention: the middle row of uprights is the middle row of uprights located in the middle of the length direction among the left cantilever layer, the staggered cantilever layer, and the right cantilever layer.

[0009] As a further embodiment of the present invention: the first row of conductive diagonal rods is arranged in two rows; One end of the first row of guide diagonal braces is connected to the side row of uprights of the left cantilevered layer, and the other end of the first row of guide diagonal braces is connected to the middle row of uprights of the right cantilevered layer. At the same time, the side row of uprights of the staggered cantilevered layer and the middle row of uprights of the right cantilevered layer are symmetrically connected, and an intersection point is formed on the middle row of uprights of the right cantilevered layer. The distance from the intersection point to the first row of horizontal bars is h1, and the angle between the first row of guide diagonal braces and the first row of horizontal bars is 45 degrees.

[0010] As a further embodiment of the present invention: one end of the second row of guide diagonal rods is connected to the second row of uprights on the side row of the left cantilever layer towards the middle row of uprights, and the other end of the second row of guide diagonal rods is connected to the middle row of uprights on the right cantilever layer. At the same time, the second guide uprights on the side row of uprights on the side row of the staggered cantilever layer towards the middle row of uprights are symmetrically connected to the middle row of uprights on the right cantilever layer, and an intersection point is formed on the middle row of uprights on the right cantilever layer. The distance from the intersection point to the first row of horizontal rods is h2, and the angle between the second row of guide diagonal rods and the first row of horizontal rods is 45 degrees.

[0011] As a further aspect of the present invention: the third row of conductive diagonal braces and above connect one side of other uprights in the left and right cantilever layers to the middle row of uprights in the right cantilever layer, forming an intersection point on the middle row of uprights in the right cantilever layer, and the distances from each intersection point to the first row of horizontal bars are h3…h n .

[0012] As a further embodiment of the present invention: the reinforcing diagonal brace connects the intersection of the outermost row of conductive diagonal braces with the middle row of uprights in the right cantilever layer and the position of the first row of horizontal bars in the left cantilever layer, the staggered cantilever layer, and the middle row of uprights; The reinforcing diagonal braces are arranged inside the other uprights and are connected to all encountered uprights.

[0013] As a further aspect of the present invention: the first row of horizontal bars is the first row of sweeping vertical bars in the left cantilever layer and staggered cantilever layer frame.

[0014] The safety arrangement method for high-level staggered cantilever scaffolding includes the following steps: S1: Develop a plan to determine the spacing of the side columns for the right cantilever floor, left cantilever floor, and staggered cantilever floor; S2: Lay out the lines for the staggered cantilever structure layer, the left cantilever structure layer, and the right cantilever structure layer, and locate the side row uprights, the middle row uprights, and the cantilevered I-beams; S3: Construct the right cantilevered floor, connecting the side row of uprights, the middle row of uprights, and other uprights into a whole, up to the height of the left and right cantilevered floors; S4: Erect the side columns of the left cantilevered floor and the staggered cantilevered floor, ensuring that the spacing between the side columns is greater than or equal to 500mm, and arrange the first row of horizontal bars and above; S5: Construct the first row of diagonal bracing, the second row of diagonal bracing, and the third row of diagonal bracing sequentially until h. n Stop when h is greater than or equal to h; S6: Calculate the left horizontal distance and the right horizontal distance; S7: Set up scissor bracing according to specifications.

[0015] The beneficial effects of this invention are: (1) This invention increases the shear and deflection resistance between the scaffold sections by controlling the distance between the side uprights of the scaffold sections. By controlling the first row of horizontal bars, i.e. the first row of longitudinal bars of the cantilever layer, the requirement that the entire line be continuous is met, and the connection is made at the intersection where the sections are most prone to shear damage, thus ensuring the integrity of the scaffold and avoiding corner tearing damage. (2) By setting up the transmission diagonal braces, the bending deformation of the staggered part of the entire cantilever frame is the greatest. By arranging each group of transmission diagonal braces in a figure-eight pattern, not only is the integrity of the staggered area increased, but the deflection deformation of this area is also most effectively resisted, thus avoiding damage caused by deflection deformation. By setting up the transmission diagonal braces, the frame force concentrated in the staggered area is orderly transferred to the main frame. According to the height of the staggered structure, the number of rows of transmission diagonal braces is reasonably controlled to ensure that the concentrated force is effectively and orderly transferred, thus ensuring the stability of the overall frame.

[0016] (3) In this invention, by setting up a transmission diagonal bar, the segmented cantilever frame is arranged diagonally to enhance its overall integrity and improve the shear resistance between the segmented cantilever frames. By setting up a reinforcing diagonal bar, the problem of eccentric instability due to force is avoided when the cantilever frame or staggered cantilever frame is too long or of unequal length. Therefore, this method reduces the occurrence of safety accidents and is particularly important, with certain social and economic effects. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a planar schematic diagram of the present invention; Figure 2 This is a schematic elevation view of the present invention.

[0019] In the diagram: 1. Staggered cantilever frame; 2. Left cantilever layer; 3. Right cantilever layer; 4. Staggered cantilever layer; 5. Left cantilever structural layer; 6. Staggered cantilever structural layer; 7. Right cantilever structural layer; 8. Cantilevered I-beam; 9. Middle row of uprights; 10. Side row of uprights; 11. First row of diagonal bracing; 12. Second row of diagonal bracing; 13. Third row of diagonal bracing; 14. Other uprights; 15. First row of horizontal bars; 16. Reinforcing diagonal bracing. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1 Please see Figures 1-2 As shown, the present invention is a high staggered cantilever scaffold, including a staggered cantilever frame 1, which consists of a left cantilever layer 2, a staggered cantilever layer 4, a right cantilever layer 3, a first row of conduction diagonal braces 11, a second row of conduction diagonal braces 12, a third row of conduction diagonal braces 13, and reinforcing diagonal braces 16. The left cantilever layer 2 and the staggered cantilever layer 4 are the reference layers with higher supports, and their supports are respectively located on the cantilevered I-beams 8 of the left cantilever structural layer 5 and the right cantilever structural layer 7. The right cantilever layer 3 is lower in height than the base layer and is located between the left cantilever layer 2 and the staggered cantilever layer 4. The cantilevered I-beam 8 is fixed to the staggered cantilever structure layer 6.

[0022] It should be noted that the cantilevered I-beam 8 is a hot-rolled I-beam, and its anchoring end length is not less than 1.25 times the cantilever end length, and it is fixed to the structural layer by two U-bolts with a diameter of not less than 200mm. Preferably, in this invention, the left cantilever layer 2, the staggered cantilever layer 4, and the right cantilever layer 3 are all composed of cantilevered I-beams 8, side row uprights 10, middle row uprights 9, other uprights 14, first row crossbars 15, and other crossbars. The left cantilever layer 2, the staggered cantilever layer 4, and the right cantilever layer 3 are connected not only by the first row of horizontal bars 15 and other horizontal bars, but also by the first row of conducting diagonal bars 11, the second row of conducting diagonal bars 12, and the third row of conducting diagonal bars 13 arranged crosswise on the inside of other uprights 14 to form an integral connection.

[0023] It should be noted that the connection point between the guide brace and the upright should be no more than 300mm from the main node.

[0024] Preferably, in this invention, the side row uprights 10 are the side row uprights 10 at both ends of the left cantilever layer 2, the staggered cantilever layer 4, and the right cantilever layer 3, and the distance between two adjacent side row uprights 10 does not exceed 500mm.

[0025] It should be noted that the bottom of the side row uprights 10 is provided with a metal base plate and is fixed to the cantilevered I-beams 8 by welding or bolting.

[0026] Preferably, in this invention, the middle row of uprights 9 is the middle row of uprights 9 located in the middle of the length direction among the left cantilever layer 2, the staggered cantilever layer 4, and the right cantilever layer 3.

[0027] It should be noted that the horizontal distance between the middle row upright 9 and the side row upright 10 is greater than 1.2m.

[0028] Preferably, in this invention, the first row of conductive diagonal rods 11 is arranged in two rows; One end of the first row of guide diagonal rods 11 is connected to the side row of uprights 10 of the left cantilever layer 2, and the other end of the first row of guide diagonal rods 11 is connected to the middle row of uprights 9 of the right cantilever layer 3. At the same time, it symmetrically connects the side row of uprights 10 of the staggered cantilever layer 4 and the middle row of uprights 9 of the right cantilever layer 3, and forms an intersection point on the middle row of uprights 9 of the right cantilever layer 3. The distance from the intersection point to the first row of horizontal rods 15 is h1, and the angle between the first row of guide diagonal rods 11 and the first row of horizontal rods 15 is 45 degrees.

[0029] Preferably, in this invention, one end of the second row of guide diagonal rods 12 is connected to the second row of uprights on the side row of uprights 10 in the left cantilever layer 2 toward the middle row of uprights 9, and the other end of the second row of guide diagonal rods 12 is connected to the middle row of uprights 9 in the right cantilever layer 3. At the same time, it symmetrically connects the second guide uprights on the side row of uprights 10 in the staggered cantilever layer 4 toward the middle row of uprights 9 with the middle row of uprights 9 in the right cantilever layer 3, and forms an intersection point on the middle row of uprights 9 in the right cantilever layer 3. The distance from this intersection point to the first row of horizontal rods 15 is h2, and the angle between the second row of guide diagonal rods 12 and the first row of horizontal rods 15 is 45 degrees.

[0030] Preferably, in this invention, the third row of conductive diagonal braces 13 and above connect to other uprights 14 in the left cantilever layer 2 and the right cantilever layer 3 with the middle row uprights 9 of the right cantilever layer 3, forming an intersection point on the middle row uprights 9 of the right cantilever layer 3, and the distances from each intersection point to the first row of horizontal bars 15 are h3…h. n .

[0031] It should be noted that when h ≥ h, where h is the vertical distance between the cantilevered I-beams 8 in the left cantilever layer 2, the right cantilever layer 3, and the staggered cantilever layer 4, the third row of conduction diagonal braces 13 are installed at the stop.

[0032] Preferably, in this invention, the reinforcing diagonal brace 16 connects the outermost row of conductive diagonal braces at the intersection of the middle row of uprights 9 in the right cantilever layer 3 and the position of the first row of horizontal bars 15 in the left cantilever layer 2, the staggered cantilever layer 4, and the middle row of uprights 9; The reinforcing diagonal brace 16 is arranged inside the other uprights 14 and is connected to all the adjacent uprights.

[0033] Preferably, in this invention, the first row of horizontal bars 15 is the first row of sweeping vertical bars in the frame of the left cantilever layer 2 and the staggered cantilever layer 4.

[0034] It should be noted that the sweeping longitudinal bar is the first longitudinal horizontal bar of the scaffolding that is close to the structural layer. It is located at the bottom of the scaffold and its function is to connect the bottom uprights, transfer vertical loads and restrain the displacement of the bottom of the uprights, similar to the function of the foundation ring beam. The first row of horizontal bars 15 must be continuous and pass through the left cantilever layer 2 and the right cantilever layer 4. They cannot be broken due to the segmentation. The horizontal bars and vertical bars are rigidly connected by fasteners to form a closed bottom load ring, ensuring that the bottom load of the two reference layers can be transferred to each other through the horizontal bars, and avoiding instability caused by the independent force on one side of the frame.

[0035] Example 2 The safety arrangement method for high-level staggered cantilever scaffolding includes the following steps: S1: Develop a plan to determine the spacing of the side columns 10 of the right cantilever layer 3, the left cantilever layer 2, and the staggered cantilever layer 4; S2: Lay out the lines on the staggered cantilever structure layer 6, the left cantilever structure layer 5, and the right cantilever structure layer 7, and position the side row uprights 10, the middle row uprights 9, and the cantilevered I-beams 8; S3: Construct the right cantilevered layer 3, connecting the side row uprights 10, the middle row uprights 9, and other uprights 14 into a whole, up to the height of the left cantilevered layer 2 and the right cantilevered layer 3; S4: Erect the side row of uprights 10 for the left cantilevered layer 2 and the staggered cantilevered layer 4, ensuring that the spacing between the side row of uprights 10 is greater than or equal to 500mm, and arrange the first row of horizontal bars 15 and above; S5: Construct the first row of conduction diagonal braces 11, the second row of conduction diagonal braces 12, and the third row of conduction diagonal braces 13 sequentially to h. n Stop when h is greater than or equal to h; S6: Calculate the left horizontal distance and the right horizontal distance; S7: Set up scissor bracing according to specifications.

[0036] Specific steps and methods in this invention: S1: Prepare a cantilever frame construction plan and determine the spacing of the side row uprights 10 of the right cantilever layer 3, the left cantilever layer 2, and the staggered cantilever layer 4 through structural mechanics calculations; The calculation includes the longitudinal spacing, transverse spacing, and step distance of the side row uprights 10, the middle row uprights 9, and the other uprights 14; The angles and heights of the first row of conduction diagonal rods 11, the second row of conduction diagonal rods 12, and the third row of conduction diagonal rods 13 are designed to ensure that when h... n When h is greater than or equal to h, the addition of h is stopped. h is the vertical distance between the cantilevered I-beams 8 in the left cantilever layer 2, the right cantilever layer 3 and the staggered cantilever layer 4.

[0037] S2: Accurately lay out the lines on the staggered cantilever structure layer 6, the left cantilever structure layer 5, and the right cantilever structure layer 7; First, mark the positioning lines for the side row uprights 10 and the middle row uprights 9. The middle row uprights 9 must be located at the center of the cantilevered floor length direction, and the side row uprights 10 must be at least 150mm away from the edge of the building structure. The spacing lines of the other uprights 14 are evenly distributed according to the requirements of the plan; Cantilevered I-beams 8 are arranged according to the layout position, and the cantilevered I-beams 8 are fixed to the structural layer with bolts.

[0038] S3: First, erect the right cantilever layer 3. Then, arrange the side row of uprights 10 and the middle row of uprights 9. Set a 50mm thick wooden base plate at the bottom of the uprights. Arrange the other uprights 14 according to the layout position and connect them with other horizontal bars to form an overall frame. Stop when the height of the frame tower reaches the structural floor elevation of the left cantilever layer 2 and the staggered cantilever layer 4, and ensure that the staggered height meets the design requirements.

[0039] S4: Arrange the uprights of the left cantilever layer 2 and the staggered cantilever layer 4 according to the erection method of the right cantilever layer 3, and ensure that the spacing between adjacent side row uprights 10 is greater than 500mm. Then arrange the first row of horizontal bars 15. The first row of horizontal bars 15 is the first row of sweeping vertical bars in the left cantilever layer 2 and staggered cantilever layer 4 frame. They need to be connected as a whole to form a closed loop. The joints must not be set at the junction of the segmented frame and must be located three spans outside the junction. At the same time, other horizontal bars should be arranged at the top, and they should be arranged in accordance with the requirements of the first row of horizontal bars 15. The connection between the horizontal bars and the uprights should be double-locked.

[0040] S5: Construct the first row of conduction diagonal braces 11, the second row of conduction diagonal braces 12, and the third row of conduction diagonal braces 13 in sequence to form a spatial force-bearing system; The first row of diagonal bracing 11 is arranged in two rows (inside the outer upright of the cantilever frame and inside the inner upright). One end is connected to the first row of horizontal bracing 15 of the side upright 10 of the left cantilever layer 2 (side of the staggered cantilever layer 4), and it is connected to the middle upright of the staggered cantilever layer 4 at a 45-degree angle. All uprights encountered by the diagonal bracing need to be connected. The right cantilevered layer 3 is arranged in a mirror image with the middle row of uprights 9 in the staggered cantilevered layer 4 as the center; The second row of diagonal guide rods 12, located in the left cantilever layer 2 or the right cantilever layer 3, starts from the side row of uprights 10 where the first row of diagonal guide rods 11 is arranged, and proceeds outwards to the second row of uprights, following the same arrangement method as the first row of diagonal guide rods 11. Then the third row of diagonal guide rods 13 is arranged, and so on, until the nth row. When the nth row is reached, h... n If h is greater than or equal to 1, no further diagonal bracing is needed.

[0041] S6: Arrangement of reinforcing diagonal brace 16. First, determine L left, L right, and h. n Data, Lleft represents the horizontal distance between the middle row of uprights 9 in the left cantilevered layer 2 and the middle row of uprights 9 in the staggered cantilevered layer 4; Lright represents the horizontal distance between the middle row of uprights 9 in the right cantilevered layer 3 and the middle row of uprights 9 in the staggered cantilevered layer 4. When Lleft or Lright... n The longitudinal distance of the three sections of the vertical poles 14 in the left cantilever layer 2 is greater than that of the other vertical poles 14. When the conditions are met on one side, the reinforcement diagonal poles 16 are added on that side. The reinforcement diagonal poles 16 are connected to the vertical poles at the intersection of the root of the middle row of vertical poles 9 in the left cantilever layer 2 and the right cantilever layer 3 with the vertical poles at the nth row of conduction diagonal poles. They are distributed inside the other vertical poles 14. All vertical poles encountered by the reinforcement diagonal poles 16 must be connected.

[0042] It should be noted that L left refers to the left horizontal distance, and L right refers to the right horizontal distance.

[0043] S7: All other requirements, such as scissor bracing, must be strictly implemented in accordance with national standards and construction plans.

[0044] The embodiments of the present invention have been described in detail above, but the content described is only a preferred embodiment of the present invention and should not be considered as limiting the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A staggered cantilever scaffold, characterized in that, It includes a staggered cantilever frame (1), which consists of a left cantilever layer (2), a staggered cantilever layer (4), a right cantilever layer (3), a first row of conduction diagonal braces (11), a second row of conduction diagonal braces (12), a third row of conduction diagonal braces (13), and reinforcing diagonal braces (16); The left cantilever layer (2) and the staggered cantilever layer (4) are reference layers with higher support, and their supports are respectively located on the cantilevered I-beams (8) of the left cantilever structure layer (5) and the right cantilever structure layer (7). The right cantilever layer (3) is lower in height than the base layer and is located between the left cantilever layer (2) and the staggered cantilever layer (4). The cantilever I-beam (8) is fixed on the staggered cantilever structure layer (6).

2. The staggered cantilever scaffolding according to claim 1, characterized in that, The left cantilever layer (2), staggered cantilever layer (4), and right cantilever layer (3) are all composed of cantilevered I-beams (8), side row uprights (10), middle row uprights (9), other uprights (14), first row of horizontal bars (15), and other horizontal bars; The left cantilever layer (2), the staggered cantilever layer (4), and the right cantilever layer (3) are connected not only by the first row of horizontal bars (15) and other horizontal bars, but also by the first row of conducting diagonal bars (11), the second row of conducting diagonal bars (12), and the third row of conducting diagonal bars (13) arranged crosswise on the inside of other uprights (14) to form an integral connection.

3. A staggered cantilever scaffold according to claim 2, characterized in that, The side row uprights (10) are the side row uprights (10) at both ends of the left cantilever layer (2), the staggered cantilever layer (4), and the right cantilever layer (3), and the distance between two adjacent side row uprights (10) does not exceed 500mm.

4. A staggered cantilever scaffold according to claim 2, characterized in that, The middle row of uprights (9) is the middle row of uprights (9) located in the middle of the length direction among the left cantilever layer (2), the staggered cantilever layer (4), and the right cantilever layer (3).

5. A staggered cantilever scaffold according to claim 1, characterized in that, The first row of conduction diagonal rods (11) is arranged in two rows; One end of the first row of conduction diagonal rods (11) is connected to the side row of uprights (10) of the left cantilever layer (2), and the other end of the first row of conduction diagonal rods (11) is connected to the middle row of uprights (9) of the right cantilever layer (3). At the same time, the side row of uprights (10) of the staggered cantilever layer (4) and the middle row of uprights (9) of the right cantilever layer (3) are symmetrically connected, and an intersection point is formed on the middle row of uprights (9) of the right cantilever layer (3). The distance from the intersection point to the first row of horizontal rods (15) is h1, and the angle between the first row of conduction diagonal rods (11) and the first row of horizontal rods (15) is 45 degrees.

6. A staggered cantilever scaffold according to claim 1, characterized in that, One end of the second row of guide diagonal rods (12) is connected to the second row of uprights on the side of the left cantilever layer (2) towards the middle row of uprights (9), and the other end of the second row of guide diagonal rods (12) is connected to the middle row of uprights (9) of the right cantilever layer (3). At the same time, it symmetrically connects the second guide upright on the side of the middle row of uprights (10) towards the middle row of uprights (9) of the staggered cantilever layer (4) with the middle row of uprights (9) of the right cantilever layer (3), and forms an intersection point on the middle row of uprights (9) of the right cantilever layer (3). The distance from the intersection point to the first row of horizontal rods (15) is h2, and the angle between the second row of guide diagonal rods (12) and the first row of horizontal rods (15) is 45 degrees.

7. A staggered cantilever scaffold according to claim 1, characterized in that, The third row of conduction diagonal rods (13) and above connect one side of other uprights (14) in the left cantilever layer (2) and the right cantilever layer (3) with the middle row of uprights (9) in the right cantilever layer (3), and form intersections on the middle row of uprights (9) in the right cantilever layer (3), with the distances from each intersection to the first row of horizontal rods (15) being h3…h. n .

8. A staggered cantilever scaffold according to claim 1, characterized in that, The reinforcing diagonal bar (16) connects the intersection of the outermost row of conduction diagonal bars with the middle row of uprights (9) in the right cantilever layer (3) and the position of the first row of horizontal bars (15) in the left cantilever layer (2), staggered cantilever layer (4), and middle row of uprights (9); The reinforcing diagonal brace (16) is arranged inside the other uprights (14) and is connected to all the encountered uprights.

9. A staggered cantilever scaffold according to claim 2, characterized in that, The first row of horizontal bars (15) is the first row of sweeping vertical bars in the frame of the left cantilever layer (2) and the staggered cantilever layer (4).

10. A safe arrangement method for staggered cantilever scaffolding, employing a staggered cantilever scaffolding as described in any one of claims 1-9, characterized in that... Includes the following steps: S1: Develop a plan to determine the spacing of the side columns (10) of the right cantilever layer (3), the left cantilever layer (2), and the staggered cantilever layer (4); S2: Lay out the lines on the staggered cantilever structure layer (6), the left cantilever structure layer (5), and the right cantilever structure layer (7), and position the side row uprights (10), the middle row uprights (9), and the cantilevered I-beams (8); S3: Construct the right cantilever layer (3), connect the side row uprights (10), the middle row uprights (9) and other uprights (14) to form a whole, up to the height of the left cantilever layer (2) and the right cantilever layer (3); S4: Erect the side row of uprights (10) for the left cantilever layer (2) and the staggered cantilever layer (4), ensuring that the spacing between the side row uprights (10) is greater than or equal to 500mm, and arrange the first row of horizontal bars (15) and above. S5: Construct the first row of conduction diagonal braces (11), the second row of conduction diagonal braces (12), and the third row of conduction diagonal braces (13) sequentially until h n Stop when h is greater than or equal to h; S6: Calculate the left horizontal distance and the right horizontal distance; S7: Set up scissor bracing according to specifications.

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