Steel-wood combined template for high pier with variable-curvature cross section

Abstract

The utility model discloses a steel-wood combined template for a high pier with a variable-curvature cross section. The adjustable arc formwork is formed by splicing a plurality of adjustable arc formwork units, each adjustable arc formwork unit comprises a wooden panel, two vertically-arranged wood I-shaped beams are arranged on the back face of each panel, and a plurality of transversely-arranged steel back edges are arranged on the outer sides of the wood I-shaped beams in the height direction of the wood I-shaped beams. Vertically-arranged angle steel frames are fixed to the positions, on the side faces of the two wood I-shaped beams, of the back face of the panel respectively, one end of each wood I-shaped beam is connected with the panel, the other end of each wood I-shaped beam is connected with a steel back ridge, a positioning structure is arranged between the two wood I-shaped beams, and first lead screw adjusters are arranged at the two ends of each steel back ridge respectively; one ends of the first lead screw adjusters are hinged to the steel back edges, the other ends of the first lead screw adjusters are hinged to the angle steel frame on the back face of the face plate, and the two transversely-adjacent steel back edges on the two adjacent adjustable arc formwork units are connected through the second lead screw adjusters. Steel and wood are combined, the curvature of the formwork is adjustable, the weight is light, and the cost is low.

Description

Technical Field

[0001] The utility model relates to a steel-wood composite formwork for high piers with variable curvature cross-sections, belonging to the technical field of formworks. Background Technique

[0002] During the construction of high piers with variable curvature cross-sections, due to the limitation of the tall and special pier shape, although the conventional sectional steel formwork turnover construction technology is relatively mature, due to the control of the pier shape, there are the following defects: First, the one-time investment of steel formwork is relatively large, and the construction cost per pier is extremely high; Second, the versatility and turnover rate are relatively low, resulting in a large amount of resource waste. Content of the Utility Model

[0003] In view of the above defects existing in the prior art, the utility model provides a steel-wood composite formwork for high piers with variable curvature cross-sections, which can reduce the construction cost and has adjustable curvature.

[0004] The utility model is realized by the following technical scheme: A steel-wood composite formwork for high piers with variable curvature cross-sections, characterized in that: it is spliced by a plurality of adjustable circular arc formwork units. The adjustable circular arc formwork unit includes a wooden panel. Two vertical wooden I-beams are arranged at intervals on the back of the panel. A plurality of horizontally arranged steel back ribs are arranged along the height direction on the outside of the wooden I-beams. Each steel back rib includes two channel steels. On the back of the panel, an angle steel frame arranged vertically is fixed on the side of each of the two wooden I-beams respectively. One end of the wooden I-beam is fixedly connected with the panel by nails, and the other end of the wooden I-beam is connected with the steel back rib. Positioning steel plates are respectively arranged on the adjacent sides of the two wooden I-beams. One end of the positioning steel plate is attached to the side of the wooden I-beam, and the other end of the positioning steel plate is connected with the steel back rib. The ends of the two positioning steel plates far from the steel back rib are supported by a support rod. A first screw regulator is arranged at each end of the steel back rib. One end of the first screw regulator is hinged with the steel back rib, and the other end of the first screw regulator is hinged with the angle steel frame on the back of the panel. The two horizontally adjacent steel back ribs on two adjacent adjustable circular arc formwork units are connected by a second screw regulator.

[0005] In the utility model, the panel is a wooden panel with flexibility, and the wooden I-beam is a support structure. By adjusting the first screw regulator and the second screw regulator, the panel can be bent into the designed radian.

[0006] Further, for the convenience of connecting the wooden I-beam and the steel back rib, the wooden I-beam and the steel back rib are connected by a wooden beam connecting claw.

[0007] Further, for the convenience of hoisting, two hooks are connected to the upper end of the adjustable circular arc formwork unit, and the two hooks are respectively fixedly connected to the upper end of the wooden I-beam.

[0008] The beneficial effects of the present utility model are as follows: The structure of the present utility model is simple. It adopts a steel-wood composite formwork, which makes full use of the flexibility of the wooden formwork and combines it with the rigidity of the steel structure. It changes the disadvantage that the curvature of the fixed steel formwork is non-adjustable into an adjustable-curvature steel-wood composite formwork, which can reduce the one-time investment in fixed steel formwork and lower the construction cost. By setting screw adjusters, and adjusting each screw adjuster, the panel can be bent into the designed arc, realizing the adjustment of the formwork curvature. Moreover, the formwork curvature adjustment is convenient, and it has strong adaptability to pier columns with variable-curvature cross-sections, which can improve the turnover utilization rate of the formwork. The present utility model adopts a steel-wood combination, which is lighter in weight than the conventional steel formwork, reducing the risk of high-altitude hoisting operations and ensuring construction safety and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 is the structural schematic diagram of the present utility model;

[0010] Figure 2 is the top view schematic diagram of the present utility model;

[0011] Figure 3 is the connection schematic diagram of the panel and the wooden I-beam in the present utility model;

[0012] Figure 4 is the connection schematic diagram of the wooden I-beam and the steel back rib in the present utility model;

[0013] Figure 5 is Figure 4 the side view schematic diagram of;

[0014] Figure 6 is the structural schematic diagram of the wooden beam connecting claw in the present utility model;

[0015] Figure 7 is the connection schematic diagram of the lifting hook and the wooden I-beam in the present utility model;

[0016] Figure 8 is the exploded view of the connection between the lifting hook and the wooden I-beam in the present utility model;

[0017] Figure 9 is the schematic diagram when the present utility model is in use;

[0018] In the figure, 1, panel; 2, first screw adjuster; 3, steel back rib; 4, second screw adjuster; 5, wooden I-beam; 6, tie rod; 7, angle steel frame; 8, female connecting pad; 9, positioning steel plate; 10, support rod; 11, nail; 12, wooden beam connecting claw; 13, lifting hook; 14, lifting hook backing plate; 15, lifting hook bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be further described below through non-limiting embodiments in conjunction with the drawings:

[0020] As shown in the attached drawings, a steel-wood composite formwork for a high pier with variable curvature cross-section is composed of a number of adjustable arc formwork units spliced together. The adjustable arc formwork unit includes a wooden panel 1. On the back of the panel 1, two vertically arranged wooden I-beams 5 are arranged at intervals. Along the height direction of the wooden I-beams 5, a number of horizontally arranged steel back ribs 3 are arranged on the outside. Each steel back rib 3 includes two channel steels. The two channel steels are arranged back to back at intervals and fixed by connecting pieces. One end of the wooden I-beam 5 is fixedly connected to the panel 1 by nails 11. The other end of the wooden I-beam 5 is connected to the steel back rib 3 by a wooden beam connecting claw 12. The wooden beam connecting claw 12 is a prior art and can be purchased. Its structure is as Figure 6 shown. On the sides of the two wooden I-beams 5 on the back of the panel 1, a vertically arranged angle steel frame 7 is respectively fixed. The angle steel frame 7 is connected to the panel by bolts. On the adjacent sides of the two wooden I-beams 5, positioning steel plates 9 are respectively arranged. One end of the positioning steel plate 9 is fitted to the side of the wooden I-beam 5. The other end of the positioning steel plate 9 is connected to the steel back rib 3. The ends of the two positioning steel plates 9 far from the steel back rib 3 are supported by a support rod 10. At both ends of the steel back rib 3, a first screw regulator 2 is respectively arranged. One end of the first screw regulator 2 is hinged to the connecting shaft arranged at the end of the steel back rib 3. The other end of the first screw regulator 2 is hinged to the connecting shaft arranged on the angle steel frame 7 on the back of the panel. Between the two horizontally adjacent steel back ribs 3 on the adjacent two adjustable arc formwork units, they are connected by a second screw regulator 4. The two ends of the second screw regulator 4 are respectively hinged to the connecting shafts arranged at the ends of the steel back ribs 3. Both the first screw regulator 2 and the second screw regulator 4 are prior arts. By rotating the sleeve on the screw regulator, the length of the screw regulator can be adjusted, so as to drive the panel 1 to bend. By adjusting the corresponding screw regulator, the panel can be bent into the designed radian.

[0021] For the convenience of formwork hoisting, it is preferably that two lifting hooks 13 are connected to the upper end of the adjustable arc formwork unit. The two lifting hooks 13 are respectively fixedly connected to the upper end of the wooden I-beam by lifting hook bolts 15 and lifting hook pads 14.

[0022] When using the utility model for pier column construction, the arc section formwork is assembled by a number of adjustable arc formwork units. The curvature of the arc formwork unit is adjusted according to the radius template by using the screw regulator. The inner and outer formworks are fixed by tie bolts 6. When finely adjusting the curvature of the adjustable arc formwork unit, through coordinate calculation, the theoretical coordinates of the representative points of the inner and outer formworks are selected, and by using the layout function of the total station, the curvature of the arc formwork is finely adjusted to make its arc curvature meet the design requirements.

[0023] Other parts in this embodiment are all prior arts and will not be elaborated here.

Claims

1. A steel-wood composite formwork for high piers with variable curvature cross-sections, characterized in that: It is composed of several adjustable arc formwork units, which include a wooden panel. Two vertically arranged wooden I-beams are arranged at intervals on the back of the panel. Multiple horizontally arranged steel back ribs are arranged on the outside of the wooden I-beams along their height direction. Each steel back rib includes two channel steels. A vertically arranged angle steel frame is fixed on the side of the two wooden I-beams on the back of the panel. One end of the wooden I-beam is fixedly connected to the panel by nails, and the other end of the wooden I-beam is connected to the steel back rib. The adjacent ends of the two wooden I-beams are connected to the steel back ribs. A positioning steel plate is provided on each side, one end of the positioning steel plate is fitted with the side of the wooden I-beam, and the other end of the positioning steel plate is connected to the steel back rib. The ends of the two positioning steel plates away from the steel back rib are supported by support rods. A first screw adjuster is provided at each end of the steel back rib, one end of the first screw adjuster is hinged to the steel back rib, and the other end of the first screw adjuster is hinged to the angle steel frame on the back of the panel. The two transversely adjacent steel back ribs on two adjacent adjustable arc template units are connected by a second screw adjuster.

2. The steel-wood composite formwork for variable-curvature cross-section high piers according to claim 1, wherein: The wooden I-beam is connected to the steel back rib by means of wooden beam connecting claws.

3. The steel-wood composite formwork for variable-curvature cross-section high piers according to claim 1 or 2, characterized in that: The upper end of the adjustable arc template unit is connected with two hooks, and the two hooks are respectively fixedly connected with the upper ends of the wooden I-beams.

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