Curved surface wood grain bare concrete opposite-pulling formwork system
By laser-engraving a reverse wood grain texture on the inner surface of the curved integral wood grain lining panel and connecting it with multiple fastening units and sealing units, the problems of high bending difficulty, low splicing efficiency and material waste in the construction of curved buildings by unitized wood grain templates are solved, and high-precision and high-quality curved wood grain fair-faced concrete molding is achieved.
Patent Information
- Application Number
- CN202520006956.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-02
AI Technical Summary
Unitized wood grain formwork is difficult to bend in curved building construction, has low splicing efficiency, large splicing gaps, is prone to cracking and breakage, resulting in serious material waste and affecting the molding accuracy and quality of curved wood grain fair-faced concrete.
It adopts a curved integral wood grain lining panel, with the inner surface laser-engraved with reverse wood grain texture, and is connected by multiple fastening units and sealing units. It is tightened using horizontal and oblique fastening bolts, combined with water-stop strips to prevent grout leakage.
It improves the molding precision and quality of curved wood grain fair-faced concrete, reduces material waste, enhances splicing efficiency and quality, and ensures the airtightness of splice joints and overall rigidity.
Smart Images
Figure CN223867622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, and in particular to a curved wood grain fair-faced concrete tie-panel system. Background Technology
[0002] Wood-grain exposed concrete, as an expression of architectural art, is widely used in construction projects. It typically employs modular wood-grain templates with a refined wood grain texture, requiring extremely high precision in the processing and assembly of these templates. The workload for each assembly and layout is substantial, demanding a high level of skill from the workers. While suitable for flat exposed concrete surfaces, it is problematic for curved surfaces such as cylindrical structures. The excessive curvature of the modular templates leads to several issues: firstly, bending is difficult, resulting in large gaps and low assembly efficiency; secondly, the templates are prone to cracking or breaking after bending, causing significant material waste; and thirdly, the density of the wood grain texture changes after bending, affecting the forming accuracy and quality of the curved exposed wood-grain concrete. Utility Model Content
[0003] The purpose of this invention is to provide a tension formwork system for curved wood grain fair-faced concrete to solve the problems of high bending difficulty, low splicing efficiency, large splicing gaps, easy cracking and breakage, resulting in serious material waste and affecting the molding accuracy and quality of curved wood grain fair-faced concrete when constructing curved wood grain fair-faced concrete by splicing unit wood grain formwork with wood grain fair-faced concrete formwork.
[0004] To solve the above-mentioned technical problems, this utility model provides a curved wood grain fair-faced concrete tie-panel formwork system, including: at least two sets of horizontally spliced curved wood grain tie-panel formwork units, a sealing unit located on the outermost curved wood grain tie-panel formwork unit, and multiple fastening units arranged longitudinally between two adjacent sets of horizontally spliced curved wood grain tie-panel formwork units.
[0005] Each set of curved wood grain tie rod template units includes two layers of curved integral wood grain backing panels arranged in parallel and spaced apart, a reverse wood grain texture laser-engraved on the inner surface of each layer of curved integral wood grain backing panels, a curved pad plate located on the outer side of each layer of curved integral wood grain backing panels, multiple vertical keels evenly distributed along the outer curved surface of the curved pad plate, multiple curved transverse keels perpendicular to the vertical keels, and multiple five-segment water-stop tie rods evenly distributed on the curved transverse keels, the vertical keels, the curved pad plate, the two layers of curved integral wood grain backing panels, the curved pad plate, the vertical keels, and the curved transverse keels.
[0006] The sealing unit includes a planar integral wood grain lining panel that is closed on the end face of the outermost curved wood grain tie template unit, a planar pad plate, multiple planar vertical keels and multiple planar horizontal keels arranged sequentially on its outer side, and oblique fastening bolts that are obliquely connected between the planar horizontal keels and the curved horizontal keels.
[0007] Each of the fastening units includes a first connector disposed between the curved pad and the end face of the curved transverse keel at both ends of the splice, a splicing bolt passing through the two first connectors at the splice, a second connector disposed on the end face of each curved transverse keel at both ends of the splice, and a horizontal fastening bolt passing through the two second connectors at the splice.
[0008] Furthermore, the curved wood grain fair-faced concrete tie-panel formwork system provided by this utility model includes a third connector on the curved transverse keel end face of the outermost curved wood grain tie-panel formwork unit, and a third connector on the planar transverse keel end face. The oblique fastening bolt is obliquely connected between the planar transverse keel and the curved transverse keel through the third connector.
[0009] Furthermore, in the curved wood grain fair-faced concrete tie-panel formwork system provided by this utility model, the first connecting member is an angle steel or a channel steel, and the two first connecting members at the splice are spliced together.
[0010] Furthermore, in the curved wood grain fair-faced concrete tie-panel formwork system provided by this utility model, the second connecting member is an angle steel.
[0011] Furthermore, in the curved wood grain fair-faced concrete tie-panel formwork system provided by this utility model, the curved transverse keels at the splicing point are covered and connected by connecting plates, and pins or bolts are installed through the upper and lower connecting plates.
[0012] Furthermore, in the curved wood grain fair-faced concrete tie-panel formwork system provided by this utility model, the vertical keel of the board surface is channel steel, and the curved horizontal keel is double-channel steel with iron blocks sandwiched and welded.
[0013] Furthermore, in the curved wood grain fair-faced concrete tie-panel formwork system provided by this utility model, the vertical keel of the plane is made of wood, and the horizontal keel of the plane is made of double-channel steel with iron blocks sandwiched and welded.
[0014] Furthermore, in the curved wood grain fair-faced concrete tie-panel system provided by this utility model, in the curved wood grain tie-panel unit, the curved integral wood grain lining panel and the curved pad lining plate are connected by self-tapping screws, the curved pad lining plate and the vertical keel of the panel are connected by self-tapping screws, and the vertical keel of the panel is welded to the curved transverse keel.
[0015] Furthermore, in the curved wood grain fair-faced concrete tie-panel formwork system provided by this utility model, a water-stop strip is provided at the splicing joint between the planar integral wood grain lining panel and the curved integral wood grain lining panel, and a water-stop strip is provided at the splicing joint between the curved integral wood grain lining panels.
[0016] Compared with the prior art, the beneficial effects of the curved wood grain fair-faced concrete tie-panel system provided by this utility model are as follows:
[0017] The curved wood grain tie rod formwork unit adopts a curved integral wood grain lining panel. By laser engraving the reverse wood grain texture on the inner surface of the curved integral wood grain lining panel, the problems of bending wood grain boards on the construction site, which are difficult, easy to crack, and easy to break, resulting in serious material waste, are avoided. The laser engraving of the reverse wood grain texture avoids the problem of wood grain texture deformation after the wood grain boards are bent, thereby improving the forming accuracy and quality of curved wood grain fair-faced concrete.
[0018] Multiple fastening units are used to tighten and pull together two adjacent sets of horizontally spliced curved wood grain tie-down template units. Horizontal fastening bolts and splicing bolts are used to tighten the curved pads and curved transverse keels on both sides of the splice. Thus, the tightening of the curved pads between the horizontal units achieves the tightening of the horizontally connected integral curved wood grain lining panels with carved reflective wood grain texture. This reduces or overcomes the gap of the integral curved wood grain lining panels at the horizontal splice joint, thereby improving splicing efficiency and quality, and improving the forming accuracy and quality of the curved wood grain fair-faced concrete at the splice joint.
[0019] The planar integral wood grain lining panel is tightened by the oblique fastening bolts of the sealing unit at the four corners, thereby improving the forming accuracy and quality of the curved wood grain fair-faced concrete end face. Attached Figure Description
[0020] Figure 1 It is a 3D model of a cylindrical curved building;
[0021] Figure 2 This is a schematic diagram of the planar structure of the curved wood grain fair-faced concrete tie-panel system;
[0022] Figure 3 This is a side view sectional structural diagram of a curved wood grain fair-faced concrete tie-panel system;
[0023] Figure 4 This is a structural diagram of the connection nodes between horizontally spliced curved wood grain tie-panel template units;
[0024] Figure 5 This is a structural diagram of the pin;
[0025] Figure 6This is a schematic diagram of the external corner joint of the curved wood grain fair-faced concrete tie-panel system;
[0026] As shown in the figure:
[0027] 100. Curved wood grain fair-faced concrete tie rod formwork system;
[0028] 110. Curved wood grain tie rod template unit; 111. Curved integral wood grain lining panel; 112. Curved padding board; 113. Vertical keel of the board surface; 114. Curved horizontal keel; 115. Five-section water-stop tie rod bolt; 116. Self-tapping screw; 117. Water-stop rubber strip.
[0029] 120. Sealing unit; 121. Flat integral wood grain lining panel; 122. Flat padding board; 123. Flat vertical keel; 124. Flat horizontal keel; 125. Angled fastening bolt; 126. Third connector.
[0030] 130. Fastening unit; 131. First connector; 132. Splicing bolt; 133. Second connector; 134. Horizontal fastening bolt; 135. Connecting plate; 136. Pin. Detailed Implementation
[0031] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0032] Example 1
[0033] This utility model embodiment provides a construction method for a curved integral wood grain backing panel, which may include the following steps:
[0034] Step S201: A flexible wooden board without wood grain texture is bent according to the inner curvature of the curved wood grain fair-faced concrete. The wood grain texture is then engraved on the inner surface of the bent flexible wooden board using a three-dimensional laser to form a curved wood grain wooden board.
[0035] Step S202 involves bending a flexible wooden board without wood grain texture according to the outer curvature of the curved wood grain fair-faced concrete to form a curved wood grain-free wooden board. The order of steps S201 and S202 can be interchanged.
[0036] Step S203: Set baffles on the end faces of curved wood grain wood board and curved wood grain-free wood board to form a mold with a curved integral wood grain lining panel cavity.
[0037] Step S204: Pour raw material liquid into the mold. After the mold filled with raw material liquid meets the manufacturing conditions, a curved integral wood grain lining panel is formed. Remove the mold of the curved integral wood grain lining panel for demolding and take out the formed curved integral wood grain lining panel. The raw material liquid can be wood pulp, in which case the curved integral wood grain lining panel formed has a wood board structure. Alternatively, the raw material liquid can be a flexible polymer material of polyurethane elastomer, in which case the curved integral wood grain lining panel formed has a polymer structure.
[0038] The construction method of the curved integral wood grain lining panel provided in Embodiment 1 of this utility model involves pouring raw material liquid into a mold to form a curved integral wood grain lining panel by bending a flexible wood board and carving wood grain texture, forming a curved flexible wood board without wood grain texture, and a baffle box. This avoids the problems of easy cracking and breakage caused by bending wood grain boards with deepened wood grain texture in traditional methods, resulting in material waste and safety risks. Furthermore, the curved integral wood grain lining panel can be reused repeatedly.
[0039] Example 2
[0040] Please refer to Figures 1 to 6 Embodiment 2 of this utility model provides a curved wood grain fair-faced concrete tie-panel system 100, including: at least two sets of horizontally spliced curved wood grain tie-panel units 110, a sealing unit 120 located on the outermost curved wood grain tie-panel unit 110, and multiple fastening units 130 arranged longitudinally between two adjacent sets of horizontally spliced curved wood grain tie-panel units 110.
[0041] Please refer to Figures 1 to 2 Each curved wood grain tie rod unit 110 includes two layers of curved integral wood grain backing panels 111 arranged in parallel and spaced intervals, a reverse wood grain texture laser-engraved on the inner surface of each layer of curved integral wood grain backing panels 111, a curved pad plate 112 located on the outer side and set on each layer of curved integral wood grain backing panels 111, multiple vertical keels 113 evenly distributed along the outer curved surface of the curved pad plate 112, multiple curved transverse keels 114 perpendicular to the vertical keels 113, and multiple five-segment water-stop tie rods 115 evenly distributed on the curved transverse keels 114, the vertical keels 113, the curved pad plate 112, the two layers of curved integral wood grain backing panels 111, the curved pad plate 112, the vertical keels 113 and the transverse keels 114. The five-section water-stop tie bolt 115 can improve the water-stopping effect.
[0042] Please refer to Figure 1 and Figure 3The sealing unit 120 includes a planar integral wood grain lining panel 121 enclosing the end face of the outermost curved wood grain tie-panel template unit 110, and a planar pad 122, multiple planar vertical keels 123, and multiple planar horizontal keels 124 arranged sequentially on its outer side, with oblique fastening bolts 125 diagonally connecting the planar horizontal keels 124 and the curved horizontal keels 114. The planar integral wood grain lining panel 121 is enclosed and connected to the end face of the outermost curved wood grain tie-panel template unit 110 by the oblique fastening bolts 125. The sealing unit 120 consists of four groups located at the four corners, each group consisting of multiple vertically arranged keels, wherein the planar integral wood grain lining panel 121 can be a planar template without wood grain texture. To improve the fastening effect of the sealing unit 120, the sealing unit 120 also includes a third connector 126 disposed on the end face of the curved transverse keel 114 of the outermost curved wood grain tie plate unit 110, and a third connector 126 disposed on the end face of the planar transverse keel 124. The oblique fastening bolt 125 is obliquely connected between the planar transverse keel 124 and the curved transverse keel 114 through the third connector 126. The third connector 126 can be an angle steel, etc. To improve the connection strength, the oblique fastening bolt 125 is a high-strength bolt.
[0043] Please refer to Figure 2 and Figure 4 The fastening unit 130 includes a first connector 131 located between the curved pad 112 at both ends of the splice and the end faces of the curved transverse keel 114; a splicing bolt 132 passing through the two first connectors 131 at the splice; a second connector 133 located on the end faces of each curved transverse keel 114 at both ends of the splice; and a horizontal fastening bolt 134 passing through the two second connectors 133 at the splice. The horizontal fastening bolt 134 and the splicing bolt 132 tighten and align the curved integral wood grain lining panel 111 at both ends of the splice and the curved transverse keel 114 at both ends of the splice. The first connector 131 can be angle steel or channel steel, and the two first connectors 131 at the splice are aligned. The first connector 131 allows the splicing bolt 132 to abut against the vertical surface of the first connector 131 for connection, improving the reliability of the connection. The second connector 133 can be angle steel. The second connector 133 can improve the tightening effect of the horizontal fastening bolt 134 on the curved transverse keel 114. In order to improve the connection strength, the horizontal fastening bolt 134 is a high-strength bolt.
[0044] The curved wood grain fair-faced concrete tie-panel system 100 provided in Embodiment 2 of this utility model uses a curved integral wood grain lining panel 111. By laser-engraving a reverse wood grain texture on the inner surface of the curved integral wood grain lining panel 111, the problem of bending wood grain boards on the construction site, which is difficult, easy to crack, and easy to break, resulting in serious material waste, is avoided. After laser engraving the reverse wood grain texture, the problem of deformation of the wood grain texture after bending the wood grain boards is avoided, thereby improving the forming accuracy and quality of the curved wood grain fair-faced concrete.
[0045] The curved wood grain fair-faced concrete tie-panel system 100 provided in Embodiment 2 of this utility model uses multiple fastening units 130 to tighten and pull together two adjacent sets of horizontally spliced curved wood grain tie-panel units 110. Horizontal fastening bolts 134 and splicing bolts 132 tighten the curved pads 112 and curved transverse keels 114 on both sides of the splice joint. This tightening of the curved pads 112 between horizontal sections achieves the tightening of the horizontally connected integral curved wood grain lining panels 111, which are engraved with reflective wood grain texture. This reduces or overcomes the gap of the integral curved wood grain lining panels 111 at the horizontal splice joint, thereby improving splicing efficiency and quality, and enhancing the molding accuracy and quality of the curved wood grain fair-faced concrete at the splice joint.
[0046] The curved wood grain fair-faced concrete tie-panel system 100 provided in Embodiment 2 of this utility model uses the oblique fastening bolts 125 of the sealing unit 120 at the four corners to tighten the planar integral wood grain lining panel 121, thereby improving the forming accuracy and quality of the curved wood grain fair-faced concrete end face.
[0047] The curved wood grain fair-faced concrete tie-panel formwork system 100 provided in Embodiment 2 of this utility model ensures that the horizontal joints of the wood grain fair-faced concrete are flush through the curved pad 112, preventing grout leakage. The curved wood grain tie-panel formwork units 110 at both ends of the joint are fixed by pins 136 and assembly bolts 132 passing through the first connecting piece 131 of the double-jointed formwork to ensure that the vertical joints of the wood grain fair-faced concrete are flush. Horizontal fastening bolts 134 ensure the joints are sealed and work together with the water-stop strips 117 placed at the joint gaps to prevent grout leakage during the construction of the wood grain fair-faced concrete. The horizontal keel 124 of the double-jointed channel steel 1141 and the vertical keel 123 of the timber, set at the four external corners of the wall, are prestressed and fixed using oblique fastening bolts 125, thereby ensuring the rigidity of the formwork corners and adjusting the gaps between the formwork joints. Water-stop strips 117 are also placed between the vertical joints to prevent grout leakage.
[0048] Please refer to Figure 2 and Figure 4The curved wood grain fair-faced concrete tie-panel formwork system 100 provided in Embodiment 2 of this utility model has a connecting plate 135 covering and connecting the curved transverse keel 114 at the splicing point, and a pin 136 or bolt is provided through the upper and lower connecting plates 135. The reliability of the connection of the curved transverse keel 114 at the splicing point is improved by the connecting plate 135 and the pin 136 thereon.
[0049] Please refer to Figure 2 and Figure 3 The curved wood grain fair-faced concrete tie-panel system 100 provided in Embodiment 2 of this utility model has the following features: the vertical keel 113 on the panel surface can be channel steel 1141, and the curved horizontal keel 114 is a double-section channel steel 1141 with iron blocks 1142 welded to it. The iron blocks 1142 can improve the reliability of welding the double-section channel steel 1141.
[0050] Please refer to Figure 3 and Figure 6 The curved wood grain fair-faced concrete tie-panel formwork system 100 provided in Embodiment 2 of this utility model has a planar vertical keel 123 which can be a wooden block, and a planar horizontal keel 124 which is a double-channel steel 1141 with iron blocks 1142 sandwiched and welded between it.
[0051] Please refer to Figure 3 To improve the reliability of the connection between the curved integral wood grain lining panel 111 and the curved pad lining plate 112, the curved wood grain fair-faced concrete tie-panel system 100 provided in Embodiment 2 of this utility model, in the curved wood grain tie-panel unit 110, the curved integral wood grain lining panel 111 and the curved pad lining plate 112 are connected by self-tapping screws 116, the curved pad lining plate 112 is connected to the vertical keel 113 of the board surface by self-tapping screws 116, and the vertical keel 113 of the board surface is welded to the curved horizontal keel 114.
[0052] Please refer to Figure 4 and Figure 6 To improve sealing, the curved wood grain fair-faced concrete tie-panel system 100 provided in Embodiment 2 of this utility model includes a water-stop strip 117 at the joint between the planar integral wood grain lining panel 121 and the curved integral wood grain lining panel 111. The water-stop strip 117 prevents concrete leakage at the joint.
[0053] This utility model is not limited to the specific embodiments described above. Obviously, the embodiments described above are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art are within the scope of protection of this utility model. Those skilled in the art can make other levels of modifications and variations to this utility model. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model, this utility model also intends to include these modifications and variations.
Claims
1. A curved wood grain fair-faced concrete tie-panel formwork system, characterized in that, include: At least two sets of horizontally spliced curved wood grain tie-panel template units, a sealing unit located on the outermost curved wood grain tie-panel template unit, and multiple longitudinally arranged fastening units connecting the two adjacent sets of horizontally spliced curved wood grain tie-panel template units. Each set of curved wood grain tie rod template units includes two layers of curved integral wood grain lining panels arranged in parallel and spaced apart, a reverse wood grain texture laser-engraved on the inner surface of each layer of curved integral wood grain lining panels, a curved pad lining plate located on the outer side of each layer of curved integral wood grain lining panels, multiple vertical keels evenly distributed along the outer curved surface of the curved pad lining plate, multiple curved transverse keels perpendicular to the vertical keels between the vertical keels, and multiple five-segment water-stop tie rods evenly distributed vertically through and connected to the curved transverse keels, the vertical keels, the curved pad lining plate, and the curved integral wood grain lining panels. The sealing unit includes a planar integral wood grain lining panel that is closed on the end face of the outermost curved wood grain tie template unit, a planar pad plate, multiple planar vertical keels and multiple planar horizontal keels arranged sequentially on its outer side, and oblique fastening bolts that are obliquely connected between the planar horizontal keels and the curved horizontal keels. Each of the fastening units includes a first connector disposed between the curved pad and the end face of the curved transverse keel at both ends of the splice, a splicing bolt passing through the two first connectors at the splice, a second connector disposed on the end face of each curved transverse keel at both ends of the splice, and a horizontal fastening bolt passing through the two second connectors at the splice.
2. The curved wood grain fair-faced concrete tie-panel formwork system according to claim 1, characterized in that, The sealing unit also includes a third connector on the curved transverse keel end face of the outermost curved wood grain tie template unit, and a third connector on the planar transverse keel end face. The oblique fastening bolt is obliquely connected between the planar transverse keel and the curved transverse keel through the third connector.
3. The curved wood grain fair-faced concrete tie-panel formwork system according to claim 1, characterized in that, The first connector is an angle steel or a channel steel, and the two first connectors at the splice point are spliced together.
4. The curved wood grain fair-faced concrete tie-panel formwork system according to claim 1, characterized in that, The second connector is an angle steel.
5. The curved wood grain fair-faced concrete tie-panel formwork system according to claim 1, characterized in that, Connecting plates cover and connect the curved horizontal keels at the splicing points, and pins or bolts are installed through the upper and lower connecting plates.
6. The curved wood grain fair-faced concrete tie-panel formwork system according to claim 1, characterized in that, The vertical keel of the plate is a channel steel, and the horizontal keel of the curved surface is a double-channel steel with iron blocks sandwiched and welded between it.
7. The curved wood grain fair-faced concrete tie-panel formwork system according to claim 1, characterized in that, The vertical keel of the plane is made of wood, and the horizontal keel of the plane is made of double-channel steel with iron blocks welded to it.
8. The curved wood grain fair-faced concrete tie-panel formwork system according to claim 1, characterized in that, In the curved wood grain tie-panel unit, the curved integral wood grain lining panel and the curved pad lining plate are connected by self-tapping screws, the curved pad lining plate and the vertical keel of the board surface are connected by self-tapping screws, and the vertical keel of the board surface and the horizontal keel of the curved surface are welded.
9. The curved wood grain fair-faced concrete tie-panel formwork system according to claim 1, characterized in that, Water-stop strips are provided at the joints between the planar integral wood grain backing panel and the curved integral wood grain backing panel, and water-stop strips are provided at the joints between the curved integral wood grain backing panels.