A wood-plastic composite reinforced distribution beam for concrete pouring

Abstract

The present invention provides a wood-plastic composite reinforced distribution beam for concrete pouring, belonging to the field of temporary facilities in construction engineering. The distribution beam includes a plastic alloy distribution beam body, in which a square wood section penetrating along the length direction of the plastic alloy distribution beam body and Y through holes extending in parallel along the length direction of the plastic alloy distribution beam body are embedded. Through experiments, under the same specifications, the strength and bearing capacity of this distribution beam are greater than those of the square wood of the same specifications, and it has high toughness, high strength and compressive resistance. In addition, this distribution beam has the advantages of waterproof, fireproof, long service life, reducing resource waste and carbon emissions, and is a green environmental protection project.

Description

Technical Field

[0001] The present invention relates to the field of temporary facilities for construction engineering. Specifically, it relates to a wood-plastic composite reinforced distribution beam for concrete pouring, which can replace wooden square timbers. Background Art

[0002] A large number of wooden square timber distribution beams are required in construction sites such as building construction and in-situ casting of bridge supports. In the prior art, distribution beams are mostly made of wooden square timbers, and the width of the wooden square timbers is 4 cm to 8 cm, that is, generally including 4×6 cm, 6×8 cm, and 8×10 cm square timbers. For example, on the top bracket of the erected support system, an 8×10 cm square timber is placed, and then a 4×8 cm square timber is placed on it for distribution. A formwork is laid on it, and then concrete is poured. During construction, construction workers cut the wooden square timbers randomly. Coupled with the fact that the wooden square timbers are exposed to sun and rain during use, the service life is short, and they cannot be recycled, resulting in huge waste of materials. In addition, the strength of the wooden square timbers is relatively low, and the compressive capacity is also limited. Especially in the case of relatively large forces, it is difficult to meet the construction requirements.

[0003] In view of the prior art, how to develop an alternative product with certain cost advantages, which is conducive to nailing, has a strength greater than that of the existing wooden square timbers, is not afraid of moisture and rain, is not afraid of sun exposure, is fireproof, frostproof, can be cut randomly, can be recycled after use, and can be reused fully is an urgent problem to be solved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the problems existing in the prior art and provide a product that can replace wooden square timbers, meets the use performance of wooden square timbers, has a strength greater than that of the same specification wooden square timbers, can be nailed like wooden square timbers, and can be recycled and reused.

[0005] The object of the present invention is achieved as follows. The present invention provides a wood-plastic composite reinforced distribution beam for concrete pouring, including a plastic alloy distribution beam body. In the plastic alloy distribution beam body, there are square timber segments running through along the length direction of the plastic alloy distribution beam body and Y through holes extending in parallel along the length direction of the plastic alloy distribution beam body. Specifically, both the square timber segments and the through holes extend from one end face along the length direction of the plastic alloy distribution beam body to the other end face. Y is the number of through holes, and Y>30;

[0006] The cross-sectional shape of the square timber segment is a straight shape or a T shape or an I shape. The number of the square timber segments is 1 or 2. Specifically, when the cross-sectional shape of the square timber segment is a T shape or an I shape, the number of the square timber segments is 1. When the cross-sectional shape of the square timber segment is a straight shape, the number of the square timber segments is 1 or 2; the through holes are evenly distributed in the area of the plastic alloy distribution beam body other than the area where the square timber segments are embedded;

[0007] The cross-section of the plastic alloy distribution beam body is rectangular or square. Denote the height of the rectangle as D, the width as A, and the side length of the square as P. D = 4 cm - 10 cm, A = 4 cm - 8 cm, P = 4 cm - 8 cm.

[0008] Preferably, one of the four sides parallel to the length direction of the plastic alloy distribution beam body is denoted as the bottom surface, and a polyester fiber reinforced layer is laminated on the bottom surface of the plastic alloy distribution beam body. Specifically, there are the following two lamination methods:

[0009] The first is the ultrasonic welding method, that is, the polyester fiber reinforced layer is laminated on the bottom surface of the plastic alloy distribution beam body by ultrasonic welding;

[0010] The second is the co-extrusion method, that is, on the plastic alloy distribution beam body production line, a co-extrusion machine is added to co-extrude and drag-laminate on the bottom surface of the plastic alloy distribution beam body;

[0011] Denote the layer thickness of the polyester fiber reinforced layer as Q, Q = 0.5 mm - 3 mm.

[0012] Preferably, the material of the plastic alloy distribution beam body is plastic particles composed of polypropylene, compatibilizer, diffusion powder, stabilizer, inorganic additive, and inorganic powder soil. The weight fraction ratio in the foregoing order is (75 - 90) : (0.2 - 1.5) : (0.3 - 1.8) : (0.8 - 2.3) : (1.5 - 3) : (5.17 - 20). Specifically, first, plastic particles are configured according to this ratio, and then the plastic particles are extruded by an extruder to form the plastic alloy distribution beam body.

[0013] Preferably, the material of the polyester fiber reinforced layer is fiber plastic particles composed of polypropylene, fiber, and inorganic powder soil. The weight fraction ratio in the foregoing order is (65 - 80) : (18 - 30) : (10 - 20). Specifically, first, fiber plastic particles are configured according to this ratio, and then the fiber plastic particles are stretched by an extruder to form the polyester fiber reinforced layer.

[0014] Preferably, the cross-section of the through hole is circular, square, or rectangular.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. Through research and a large number of experiments, the present invention adds wooden square sections to a honeycomb-shaped plastic alloy distribution beam, and proposes a wood-plastic composite reinforced distribution beam. Due to the addition of the wooden square sections, the toughness of the plastic alloy distribution beam and the effect of nailing the plastic alloy distribution beam are improved, and the nails are not easily detached. Through experiments, under the same specifications, the toughness, strength, bearing pressure, and nail-holding performance of this distribution beam are all greater than those of wooden square timbers of the same specifications, which can meet the construction needs with higher toughness, higher strength, and higher compressive capacity requirements, and is beneficial to the combination of formwork and plastic alloy distribution beams.

[0017] 2. Due to the use of a honeycomb-shaped plastic alloy material, the present invention is light in weight, which provides convenience for transportation, installation, and disassembly.

[0018] 3. Due to the use of plastic alloy materials, the present invention is waterproof, fireproof, corrosion-resistant, has a long service life, reduces resource waste, reduces carbon emissions, and is a green environmental protection project.

[0019] 4. The wooden square sections in the present invention not only enhance the toughness but also facilitate the connection with other components, enhancing the practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall schematic diagram of Embodiment 1 of the present invention;

[0021] Figure 2 is the cross-sectional schematic diagram of Embodiment 2 of the present invention;

[0022] Figure 3 is the overall schematic diagram of Embodiment 3 of the present invention;

[0023] Figure 4 is the end face structure schematic diagram of Embodiment 4 of the present invention;

[0024] Figure 5 is the end face structure and dimension schematic diagram of Embodiment 5 of the present invention;

[0025] Figure 6 is Figure 5 the bottom view of.

[0026] Wherein, in the figure: 1 - plastic alloy distribution beam body, 2 - polyester fiber reinforcement layer, 3 - wooden square section, 4 - through hole, 5 - polyester fiber reinforcement strip 5. DETAILED DESCRIPTION OF THE INVENTION

[0027] The present invention will be described in detail below through embodiments.

[0028] Embodiment 1.

[0029] Figure 1 is the overall schematic diagram of the present invention, and is composed of Figure 1It can be seen that a wood-plastic composite reinforced distribution beam for concrete pouring in Embodiment 1 of the present invention includes a plastic alloy distribution beam body 1, in which there are square wood segments 3 running through along the length direction of the plastic alloy distribution beam body 1 and Y through holes 4 extending in parallel along the length direction of the plastic alloy distribution beam body 1. Specifically, both the square wood segments 3 and the through holes 4 extend from one end face along the length direction of the plastic alloy distribution beam body 1 to the other end face. Y is the number of through holes, and Y > 30.

[0030] The cross-sectional shape of the square wood segment 3 is a straight shape or a T shape or an I shape. The number of the square wood segments 3 is 1 or 2. Specifically, when the cross-sectional shape of the square wood segment 3 is a T shape or an I shape, the number of the square wood segments 3 is 1. When the cross-sectional shape of the square wood segment 3 is a straight shape, the number of the square wood segments 3 is 1 or 2. The through holes 4 are evenly distributed in the area of the plastic alloy distribution beam body 1 other than the area where the square wood segments 3 are embedded.

[0031] The cross-section of the plastic alloy distribution beam body 1 is a rectangle or a square. Denote the height of the rectangle as D, the width as A, and the side length of the square as P. D = 4 cm - 10 cm, A = 4 cm - 8 cm, P = 4 cm - 8 cm.

[0032] In this embodiment, there is 1 square wood segment 3 with a straight cross-sectional shape. The cross-section of the through hole 4 is circular.

[0033] Embodiment 2.

[0034] Figure 2 This is the cross-sectional schematic diagram of Embodiment 2 of the present invention. As Figure 2 It can be seen, the structure of this embodiment is the same as that of Embodiment 1, the difference is that: the cross-sectional shape of the square wood segment 3 is an I shape.

[0035] Embodiment 3.

[0036] Figure 3 This is the overall schematic diagram of Embodiment 3 of the present invention. As Figure 3 It can be seen, denote one of the four side faces parallel to the length direction of the plastic alloy distribution beam body 1 as the bottom surface, and a polyester fiber reinforced layer 2 is compounded on the bottom surface of the plastic alloy distribution beam body 1. Specifically, the compounding methods include the following two:

[0037] The first one is the ultrasonic welding method, that is, the polyester fiber reinforced layer is compounded on the bottom surface of the plastic alloy distribution beam body through ultrasonic welding;

[0038] The second one is the co-extrusion method, that is, it is co-extruded and dragged to be compounded on the bottom surface of the plastic alloy distribution beam body (1) through adding an extruder on the production line of the plastic alloy distribution beam body.

[0039] Let the layer thickness of the polyester fiber reinforcement layer 2 be denoted as Q, where Q = 0.5 mm - 3 mm.

[0040] In this embodiment, the material of the plastic alloy distribution beam body 1 is plastic particles composed of polypropylene, compatibilizer, diffusion powder, stabilizer, inorganic additive, and inorganic powder soil. The weight fraction ratios in the aforementioned order are respectively (75 - 90)∶(0.2 - 1.5)∶(0.3 - 1.8)∶(0.8 - 2.3)∶(1.5 - 3)∶(5.17 - 20). Specifically, first, plastic particles are configured according to this ratio, and then the plastic particles are extruded by an extruder to form the plastic alloy distribution beam body 1.

[0041] In this embodiment, the material of the polyester fiber reinforcement layer 2 is fiber plastic particles composed of polypropylene, fiber, and inorganic powder soil. The weight fraction ratios in the aforementioned order are respectively (65 - 80)∶(18 - 30)∶(10 - 20). Specifically, first, fiber plastic particles are configured according to this ratio, and then the fiber plastic particles are stretched by an extruder to form the polyester fiber reinforcement layer 2.

[0042] In this embodiment, there is 1 square wood section 3, and its cross-sectional shape is a straight line shape. The cross-section of the through hole 4 is circular.

[0043] Example 4.

[0044] Figure 4 This is a schematic diagram of the end face structure of Example 4 of the present invention. From Figure 4 It can be seen that the structure of this embodiment is the same as that of Example 3, including the plastic alloy distribution beam body 1 and the polyester fiber reinforcement layer 2 laminated on the plastic alloy distribution beam body 1. The difference is that there are 2 square wood sections 3, their cross-sectional shape is a straight line shape, and the cross-sectional shape of the through hole 4 is rectangular.

[0045] In Examples 3 - 4, the covering method of the polyester fiber reinforcement layer 2 on the bottom surface of the plastic alloy distribution beam body 1 is a full-coverage method. The full-coverage method means that a layer of polyester fiber reinforcement layer 2 is laminated on the entire area of the bottom surface of the plastic alloy distribution beam body 1.

[0046] Example 5.

[0047] Figure 5 This is a schematic diagram of the end face structure and dimensions of Example 5 of the present invention. The unit of the dimensions in the figure is mm, Figure 6 For Figure 5 the bottom view.

[0048] From Figure 5 It can be seen that the structure of this embodiment is the same as that of Example 4, including the plastic alloy distribution beam body 1 and the polyester fiber reinforcement layer 2 laminated on the plastic alloy distribution beam body 1. The difference is that the cross-sectional shape of the square wood section is a T shape.

[0049] In this embodiment, the layer thickness of the polyester fiber reinforcement layer 2 is 1.2 mm.

[0050] Figure 6 is Figure 5 The bottom view of shows the state of the bottom surface of the plastic alloy distribution beam body 1. As can be seen from this figure, in this embodiment, the covering mode of the polyester fiber reinforcement layer 2 on the bottom surface of the plastic alloy distribution beam body 1 is a partial covering mode. The partial covering mode means that a layer of polyester fiber reinforcement layer 2 is covered on a partial area of the bottom surface of the plastic alloy distribution beam body 1. Specifically, in this embodiment, the polyester fiber reinforcement layer 2 is composed of several polyester fiber reinforcement strips 5. The several polyester fiber reinforcement strips 5 are parallelly compounded on the bottom surface of the plastic alloy distribution beam body 1 along the length direction of the plastic alloy distribution beam body 1, and there is a gap between adjacent two polyester fiber reinforcement strips 5. In this embodiment, there are 6 polyester fiber reinforcement strips 5, the width of each strip is 5 mm, and the gap between adjacent two is 6 mm.

Claims

1. A wood-plastic composite reinforced distribution beam for concrete pouring, characterized in that, It includes a plastic alloy distribution beam body (1), in which a square wood section (3) running through along the length direction of the plastic alloy distribution beam body (1) and Y through holes (4) extending in parallel along the length direction of the plastic alloy distribution beam body (1) are embedded. Specifically, both the square wood section (3) and the through holes (4) extend from one end face along the length direction of the plastic alloy distribution beam body (1) to the other end face. Y is the number of through holes, and Y > 30; The cross-sectional shape of the square wood section (3) is a straight shape or a T shape or an I shape. The number of the square wood sections (3) is 1 or 2. Specifically, when the cross-sectional shape of the square wood section (3) is a T shape or an I shape, the number of the square wood sections (3) is 1; when the cross-sectional shape of the square wood section (3) is a straight shape, the number of the square wood sections (3) is 1 or 2. The through holes (4) are evenly distributed in the area of the plastic alloy distribution beam body (1) other than the area where the square wood section (3) is embedded; The cross-section of the plastic alloy distribution beam body (1) is a rectangle or a square. Denote the height of the rectangle as D, the width as A, and the side length of the square as P. D = 4 cm - 10 cm, A = 4 cm - 8 cm, P = 4 cm - 8 cm; One of the four side faces parallel to the length direction of the plastic alloy distribution beam body (1) is denoted as the bottom surface. A layer of polyester fiber reinforcement layer (2) is compounded on the bottom surface of the plastic alloy distribution beam body (1). Denote the layer thickness of the polyester fiber reinforcement layer (2) as Q, Q = 0.5 mm - 3 mm; The material of the plastic alloy distribution beam body (1) is plastic particles composed of polypropylene, compatibilizer, diffusion powder, stabilizer, inorganic additive, and inorganic silt. The weight part ratio in the foregoing order is (75 - 90):(0.2 - 1.5):(0.3 - 1.8):(0.8 - 2.3):(1.5 - 3):(5.17 - 20). Specifically, first configure it into plastic particles according to this ratio, and then extrude the plastic particles through an extruder to form the plastic alloy distribution beam body (1); The material of the polyester fiber reinforcement layer (2) is fiber plastic particles composed of polypropylene, fiber, and inorganic silt. The weight part ratio in the foregoing order is (65 - 80):(18 - 30):(10 - 20). Specifically, first configure it into fiber plastic particles according to this ratio, and then stretch the fiber plastic particles through an extruder to form the polyester fiber reinforcement layer (2).

2. The wood-plastic composite reinforced distribution beam for concrete pouring according to claim 1, characterized in that, The compounding method of the polyester fiber reinforcement layer includes the following two types: The first type is the ultrasonic welding method, that is, the polyester fiber reinforcement layer is compounded on the bottom surface of the plastic alloy distribution beam body through ultrasonic welding; The second type is the co-extrusion method, that is, on the plastic alloy distribution beam body production line, it is co-extruded and dragged through an additional extruder to be compounded on the bottom surface of the plastic alloy distribution beam body.

3. The wood-plastic composite reinforced distribution beam for concrete pouring according to claim 1, wherein, The cross-section of the through hole (4) is circular or square or rectangular.

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