Reinforcing steel bar anti-toppling device for reducing tower wall slip form construction

Abstract

The utility model provides a reinforcing steel bar anti-toppling device for construction of a reducing tower wall slip form, which is arranged on a cross beam arranged along a radial axis in the slip form and a stand column arranged along a circumferential direction, and comprises a limiting plate which can move in the radial direction and is movably connected with the cross beam and a limiting connecting rod used for adjusting the distance between the limiting plate and the stand column, the number of the limiting plates and the limiting connecting rods is at least two, the limiting plates are internally provided with at least one pair of through holes arranged in the radial direction, the limiting connecting rods are internally provided with hinge parts and strip-shaped limiting holes, the hinge parts are hinged to the limiting plates, the stand columns are internally provided with fixing bolts, the fixing bolts are connected into the strip-shaped limiting holes, and at least two arc-shaped steel bars penetrate through the through holes to form a closed ring. The arc-shaped steel bars and the limiting plates on the two sides form a closed ring to limit the longitudinal steel bars in the slip form, the distance between the transverse sleeve and the stand column is adjusted by adjusting the connecting positions of the fixing bolts at different heights in the limiting holes, and the purpose of adjusting the limiting distance of the anti-toppling device according to the radius of the tower wall is achieved.

Description

Technical Field

[0001] This utility model relates to the field of slipform technology, and in particular to a steel bar anti-tipping device for slipform construction of variable diameter tower walls. Background Technology

[0002] With the vigorous development of national energy conservation and environmental protection projects, concentrated solar power (CSP) technology has emerged and received strong national promotion. The receiver tower is the core component of a CSP plant, with a concrete cylinder wall height of approximately 190 meters. Its overall shape is cylindrical, wider at the bottom and narrower at the top. To ensure construction quality and seismic resistance, a large amount of steel reinforcement is required in the receiver tower's construction. During the reinforcement construction of the cylinder wall, to ensure the quality of the cylinder wall's appearance, the concrete pouring must be continuous. To avoid the reinforcement construction affecting the concrete pouring progress, longer steel bars are pre-installed using a butt joint method before pouring.

[0003] Because the pre-reserved reinforcing bars are quite long, they are prone to tipping over if anti-tipping devices are not used to limit their movement. Existing anti-tipping devices for reinforcing bars used in slipform construction are only suitable for straight-wall slipforms, not for slipforms of variable-diameter tower walls. Therefore, a new anti-tipping device for reinforcing bars that can be applied to variable-diameter tower walls is needed. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a rebar anti-tipping device for slipform construction of variable diameter tower walls. It is installed on a crossbeam arranged radially along the axis and columns arranged circumferentially in the slipform. The device includes a radially movable limiting plate movably connected to the crossbeam and a limiting rod for adjusting the distance between the limiting plate and the columns. There are at least two limiting plates and limiting rods. The limiting plate has at least one pair of radially arranged through holes. The limiting rod has a hinged portion and a strip-shaped limiting hole. The hinged portion is hinged to the limiting plate. The columns have fixing bolts connected to the strip-shaped limiting holes. At least two arc-shaped rebars penetrate the through holes to form a closed ring, limiting the longitudinal rebars in the slipform.

[0005] Specifically, the column is provided with a longitudinal sleeve on its outer periphery, and the fixing bolt is located on the side of the longitudinal sleeve near the crossbeam.

[0006] Specifically, the column is provided with multiple positioning holes in the vertical direction, and the longitudinal sleeve is provided with mounting holes, through which the positioning shaft passes and is connected to the positioning holes.

[0007] Specifically, the longitudinal reinforcing bars and the curved reinforcing bars are threaded steel bars, and the longitudinal reinforcing bars rest against one side of the curved reinforcing bars.

[0008] Specifically, the curved steel bars are arranged in parallel.

[0009] Specifically, a transverse sleeve is provided at the bottom of the limiting plate, the limiting plate is welded to the transverse sleeve, and the transverse sleeve is sleeved on the outside of the crossbeam.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] This utility model provides a steel bar anti-tipping device for slipform construction of variable diameter tower walls. It uses an arc-shaped steel bar and limit plates on both sides to form a closed ring, which limits the longitudinal steel bar located in the closed ring. By adjusting the connection position of the fixing bolt in the limit hole at different heights, the distance between the transverse sleeve and the column can be adjusted, so as to achieve the purpose of adjusting the limit distance of the anti-tipping device according to the radius of the tower wall. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the usage state of this utility model;

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the limiting linkage structure of this utility model.

[0015] Reference numerals in the attached drawings: 1. Horizontal beam; 2. Column; 21. Positioning hole; 3. Limiting plate; 31. Through hole; 4. Transverse sleeve; 5. Limiting connecting rod; 51. Hinge; 52. Limiting hole; 6. Longitudinal sleeve; 61. Positioning shaft; 62. Fixing bolt; 7. Curved steel bar; 8. Longitudinal steel bar. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] like Figures 1-3 As shown, this utility model provides a rebar anti-tipping device for slipform construction of variable-diameter tower walls. It is installed in a horizontal beam 1 arranged radially along the axis and a vertical column 2 arranged circumferentially during slipform construction. The horizontal beam 1 is lifted as a whole by the slipform hydraulic structure. The anti-tipping device includes a radially movable limiting plate 3 movably connected to the horizontal beam 1 and a limiting connecting rod 5 for adjusting the distance between the limiting plate 3 and the column 2. The limiting plate 3 has at least one pair of radially arranged through holes 31, through which circumferential arc-shaped rebars 7 form a closed loop. Vertically arranged longitudinal rebars 8 are located between the two arc-shaped rebars 7, limiting the longitudinal rebars 8. This anti-tipping device is particularly applicable to variable-diameter tower walls, such as the heat-absorbing tower in a heliostat factory. The distance between the limiting plate 3 and the column 2 can be adjusted by the limiting connecting rod 5 to suit the building structure where the tower body is thicker at the bottom and thinner at the top.

[0018] A set of anti-tipping devices includes at least two limiting plates 3, limiting rods 5, and at least two arc-shaped steel bars 7. The limiting plates 3 and limiting rods 5 are respectively installed in adjacent circumferentially arranged columns 2 and crossbeams 1, and the arc-shaped steel bars 7 are located in the limiting plates 3. A transverse sleeve 4 is provided at the bottom of the limiting plate 3, and the limiting plate 3 is welded to the transverse sleeve 4. The transverse sleeve 4 is sleeved on the outside of the crossbeam 1 and can slide in the crossbeam 1. The limiting plate 3 is provided with radially arranged through holes 31, which can be single-layered or multi-layered. An arc-shaped steel bar 7 is inserted into each through hole 31. As another embodiment of the movable connection between the limiting plate 3 and the crossbeam, a slide rail is provided on the crossbeam 1, and a slider is provided in the slide rail. The slider is fixedly connected to the limiting plate 3, and the position of the limiting plate 3 and the column 2 is adjusted by the slide rail. Specifically, during the slipform construction of a heat-absorbing tower, 12 columns 2 and 12 crossbeams 1 are installed. Each column 2 and crossbeam 1 is equipped with a limiting plate 3 and a limiting connecting rod 5. A set of arc-shaped steel bars 7 are inserted circumferentially through the through holes 31 of the limiting plate 3. Each set of arc-shaped steel bars 7 consists of two parallel arc-shaped steel bars 7. Depending on the circumference of the tower, each arc-shaped steel bar 7 passes through 3-4 limiting plates 3. The limiting plates 3 provide support for the arc-shaped steel bars 7. The arc-shaped steel bars 7 and the limiting plates 3 on both sides form a closed loop, limiting the longitudinal steel bars 8 and preventing them from tilting. Two layers of radially arranged through holes 31 are set in the limiting plate 3. The arc-shaped steel bars 7 are staggered in the two layers of through holes, that is, two arc-shaped steel bars are located in the upper through hole of the limiting plate 3, and two adjacent arc-shaped steel bars are located in the lower through hole of the limiting plate 3.

[0019] A longitudinal sleeve 6 is provided on the outer periphery of the column 2. A limiting rod 5 is provided on the side of the limiting plate 3 near the longitudinal sleeve 6. The limiting rod 5 includes a hinge part 51 and a strip-shaped limiting hole 52. The hinge part 51 is hinged to the limiting plate 3, and the limiting hole 52 is connected to the longitudinal sleeve 6. Multiple positioning holes 21 are provided in the column 2 along the vertical direction. An installation hole is provided in the longitudinal sleeve 6. A positioning shaft 61 is connected to the installation hole. The positioning shaft 61 passes through the installation hole and is connected to the positioning hole 21 to fix the height of the longitudinal sleeve 6. The positioning shaft 61 is threadedly connected to the positioning hole. A fixing bolt 62 is provided on the side of the longitudinal sleeve 6 facing the crossbeam 1. The fixing bolt 62 is connected to the limiting hole 52. The limiting hole 52 is strip-shaped. The longitudinal sleeve 6 is fixed to the fixing bolt 62 by a nut.

[0020] Because the radius of the tower wall varies at different heights of the heat absorption tower, the position of the longitudinal reinforcing bars 8 also varies. By adjusting the connection position of the fixing bolts 62 in the limiting hole 52 at different heights, the distance between the transverse sleeve 4 and the column 2 is adjusted to match the dimensions of the cylinder wall. This ensures that the longitudinal reinforcing bars 8 at different heights are always positioned between the arc-shaped reinforcing bars 7 arranged parallel to the through hole 31, achieving an axial limiting effect and preventing the longitudinal reinforcing bars 8 from tilting axially. The longitudinal reinforcing bars 8 and the arc-shaped reinforcing bars 7 are threaded reinforcing bars. The longitudinal reinforcing bars 8 rest against one side of the arc-shaped reinforcing bars 7, resulting in a large frictional force at the contact point between the arc-shaped reinforcing bars 7 and the longitudinal reinforcing bars 8, thus preventing the longitudinal reinforcing bars 8 from tilting circumferentially.

[0021] In use, the crossbeam 1 is raised to a certain height by the hydraulic press, the position of the longitudinal sleeve 6 is adjusted and fixed in the column 2, the connection position of the fixing bolt 62 in the limit rod 5 is adjusted according to the position of the longitudinal steel bar 8, and the fixing bolt 62 is locked to fix the position of the limit plate 3. After the longitudinal steel bar 8 is connected, it can lean against one side of the arc steel bar 7 to provide support for the longitudinal steel bar 8.

[0022] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A rebar anti-tipping device for slipform construction of variable-diameter tower walls, comprising a crossbeam (1) arranged radially along the axis and a column (2) arranged circumferentially in the slipform, characterized in that, It includes a radially movable limiting plate (3) movably connected to the crossbeam (1) and a limiting rod (5) for adjusting the distance between the limiting plate (3) and the column (2). There are at least two limiting plates (3) and limiting rods (5). The limiting plate (3) is provided with at least one pair of radially arranged through holes (31). The limiting rod (5) is provided with a hinge part (51) and a strip-shaped limiting hole (52). The hinge part (51) is hinged to the limiting plate (3). The column (2) is provided with a fixing bolt (62). The fixing bolt (62) is connected in the strip-shaped limiting hole (52). At least two arc-shaped steel bars (7) pass through the through hole (31) to form a closed ring to limit the longitudinal steel bars (8) in the sliding form.

2. The anti-tipping device for reinforcing bars used in slipform construction of variable-diameter tower walls according to claim 1, characterized in that, The column (2) is provided with a longitudinal sleeve (6) on its outer periphery, and the fixing bolt (62) is provided on the side of the longitudinal sleeve (6) near the crossbeam (1).

3. The anti-tipping device for reinforcing bars used in slipform construction of variable-diameter tower walls according to claim 2, characterized in that, The column (2) is provided with multiple positioning holes (21) in the vertical direction, and the longitudinal sleeve (6) is provided with mounting holes. The positioning shaft (61) passes through the mounting holes and is connected to the positioning holes (21).

4. The anti-tipping device for reinforcing bars used in slipform construction of variable-diameter tower walls according to claim 1, characterized in that, The longitudinal steel bar (8) and the arc-shaped steel bar (7) are threaded steel bars, and the longitudinal steel bar (8) rests against one side of the arc-shaped steel bar (7).

5. The anti-tipping device for reinforcing bars used in slipform construction of variable-diameter tower walls according to claim 4, characterized in that, The curved steel bars (7) are arranged in parallel.

6. The anti-tipping device for reinforcing bars used in slipform construction of variable-diameter tower walls according to claim 1, characterized in that, The bottom of the limiting plate (3) is provided with a transverse sleeve (4), the limiting plate (3) is welded to the transverse sleeve (4), and the transverse sleeve (4) is sleeved on the outside of the crossbeam (1).

7. The anti-tipping device for reinforcing bars used in slipform construction of variable-diameter tower walls according to claim 1, characterized in that, The limiting plate (3) is provided with two pairs of radially arranged through holes (31).

8. The anti-tipping device for reinforcing bars used in slipform construction of variable-diameter tower walls according to claim 7, characterized in that, The two pairs of radially arranged through holes are vertically arranged.

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