A construction method for a flowering column and a one-time casting template system

Abstract

The invention discloses a construction method of a flowering column and a one-time casting template system, the template system comprises a central column, a concrete facing template, a hoop, a vertical purlin, a screw and a support rod, wherein the hoop is multiple, the support rod is tilted and supported on at least part of the hoop, the vertical purlin is multiple groups, and is closely arranged on the periphery of each hoops; the screw is multiple, each of which is multiple, one end of each screw passes through a group of vertical purlins and a concrete facing template and is connected to the central column, and the other end is arranged on a group of vertical purlins through a mountain-shaped clip and is locked by a nut; in the uniform cross-section section of the concrete facing template, each screw is horizontally connected to the central column; in the variable cross-section section of the concrete facing template, each screw is tilted upward relative to the horizontal plane and is connected to the central column in the shape of an umbrella rib; the structure of the invention is safe, stable and reliable, and can directly construct flowering columns with curved and irregular construction space.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to a construction method of a flowering column and a one-time casting template system. Background Art

[0002] With the development of diversified architectural forms, space curved and irregular buildings are more common. Figure 1 , the space curved surface special-shaped building composed of flowering columns 1, special-shaped walls 2 and warped special-shaped floor slabs 3 has a strong visual effect. Although most of the space curved surface special-shaped buildings have more curved geometric changes on the outer contour projection surface, most of them maintain relatively regular linear geometric changes on the vertical load-bearing components and floor slabs. At present, when encountering special-shaped vertical components such as flowering columns in construction, they are generally made into regular shapes during structural construction, and the facade is found by externally pasting special-shaped fillers in the later decoration of construction. That is, special-shaped vertical components are not directly constructed in structural construction. Its defect is that the construction method of externally pasting special-shaped fillers will increase the size of special-shaped vertical components or weaken the original structural section, restricting the use of design space or causing the safety redundancy of the structure to decrease. Direct casting construction without a template system reduces the structural strength. Summary of the invention

[0003] The purpose of the present invention is to provide a construction method of a flowering column and a one-time casting template system to solve the problem that a spatial curved special-shaped flowering column cannot be directly constructed during structural construction.

[0004] In order to solve the above technical problems, the present invention provides a one-time casting template system for flowering columns, comprising:

[0005] The center column is set at the vertical center of the flowering column to be constructed;

[0006] A concrete veneer template is arranged around the central column and on its periphery, and the concrete veneer template includes a uniform cross-section section and a variable cross-section section from bottom to top;

[0007] The hoops are multiple and arranged at longitudinal intervals around the periphery of the concrete facing formwork;

[0008] The vertical purlins are in multiple groups and are closely attached to the hoops and arranged around the outer periphery of the hoops;

[0009] The screw rods are in multiple paths, each path has multiple screw rods, one end of each screw rod passes through a certain group of the vertical purlins and the concrete veneer formwork and is connected to the central column, and the other end is set on a certain group of the vertical purlins through a mountain-shaped clamp and is locked by a nut; in the uniform cross-section section of the concrete veneer formwork, each path of the screw rods is horizontally connected to the central column; in the variable cross-section section of the concrete veneer formwork, each path of the screw rods is inclined upward relative to the horizontal plane and is connected to the central column in the shape of an umbrella rib;

[0010] The support rod is located at the periphery of the concrete facing formwork and is obliquely supported on at least a portion of the hoop.

[0011] Furthermore, in the one-time casting formwork system for flowering columns provided by the present invention, the screw rod is welded or connected to the central column or its shear key by bolts.

[0012] Furthermore, in the one-time casting formwork system of the flowering column provided by the present invention, the hoop is a steel hoop or a wooden hoop.

[0013] Furthermore, in the one-time casting formwork system of the flowering column provided by the present invention, the concrete veneer formwork comprises an inner formwork and an outer formwork in sequence from the inside to the outside.

[0014] Furthermore, in the one-time casting formwork system of the flowering column provided by the present invention, the inner formwork is a fiberboard, and the outer formwork is a nine-ply plywood.

[0015] Furthermore, in the one-time casting formwork system for flowering columns provided by the present invention, each group of the vertical purlins has two vertical purlins, and each of the mountain-shaped clips is arranged on two vertical purlins of a group of the vertical purlins.

[0016] Furthermore, in the one-time casting formwork system for flowering columns provided by the present invention, the central column is a steel column.

[0017] In order to solve the above technical problems, the present invention also provides a construction method of a flowering column, using the above flowering column one-time casting template system;

[0018] A central column is set at the vertical center of the flowering column to be constructed;

[0019] According to computer graphics technology, the concrete veneer template is cut and assembled from bottom to top on the periphery of the central column, and hoops are arranged on the periphery of the concrete veneer template according to the splicing height of the concrete veneer template, and support rods are installed on some of the hoops;

[0020] With the splicing of the concrete veneer formwork, install the groups of vertical purlins arranged around the outer periphery of the hoop, connect the groups of vertical purlins through mountain-shaped clamps and nuts, and pass the screws through the concrete veneer formwork and weld them to the central column to form a one-time casting formwork system for the flower column;

[0021] The flower column is formed by pouring concrete through the flower column one-time pouring formwork system. When pouring concrete, the geometric shape of the concrete veneer formwork is corrected by adjusting the nut located outside the mountain-shaped clamp of the screw.

[0022] Furthermore, in the construction method of the flowering column provided by the present invention, in the variable cross-section section of the concrete veneer template, the angle of the screw rod upwardly inclined relative to the horizontal plane is for:

[0023]

[0024] in, is the density of wet concrete, is the acceleration due to gravity, is the vertical height between the screw position and the top surface of concrete pouring, is the horizontal spacing between screws, is the vertical pitch of the screw, The total weight of the concrete veneer formwork and other tooling supports corresponding to the top of a single screw. is the resistance of the screw.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The one-time casting template system for flowering columns provided by the present invention controls the cross-sectional shape of the flowering columns to be constructed in the height direction through the ring hoops, so as to shape the concrete veneer template through the ring hoops and ensure the molding quality of the flowering columns; the ring hoops are clamped and fixed by vertical purlins to provide constraint support for the ring hoops and ensure the vertical positioning of the ring hoops at the same time; the risk of falling of the ring hoops that are larger at the top and smaller at the bottom under the action of gravity and construction loads can be avoided by clamping and fixing the ring hoops through the vertical purlins, thereby improving construction safety; the support rods on some of the ring hoops can further prevent the ring hoops from sliding down, thereby improving construction safety. The first supporting structure of the concrete veneer formwork is formed by vertical purlins, hoops and support rods, and the second supporting structure of the concrete veneer formwork is formed by screws and mountain-shaped clips and nuts thereon, thereby preventing the concrete veneer formwork from bulging and deformation when pouring concrete. The structural stability and safety of the concrete veneer formwork are ensured by the two supporting structures, thereby improving the safety and quality reliability of the one-time pouring construction of the flowering column, improving the construction accuracy of the flowering column, and avoiding the unfavorable situation of finding the shape of the facade by externally attaching special-shaped fillers.

[0027] The one-time casting formwork system for flowering columns provided by the present invention has the screw rods of the uniform cross-section section of the concrete veneer formwork connected horizontally and distributed horizontally radially, and the screw rods of the variable cross-section section of the concrete veneer formwork connected obliquely to form the rib shape of an umbrella in an open state, thereby improving the structural stability and safety of the one-time casting formwork system for flowering columns through the arrangement of the screw rods.

[0028] The invention provides a construction method for a flowering column. The flowering column can directly construct a flowering column with a curved and irregular construction space through a one-time casting template system for the flowering column. In addition, during the casting process, when the one-time casting template system for the flowering column undergoes a certain degree of warping deformation after pouring concrete, the geometric shape of the concrete veneer template can be corrected by adjusting the nut on the mountain-shaped clamp on the screw rod, thereby ensuring the cross-sectional shape of the flowering column and improving the molding quality of the flowering column. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the facade structure of a space curved irregular building with flowering columns;

[0030] Figures 2 to 3 It is a schematic diagram of the elevation structure of the one-time casting formwork system of the flowering column;

[0031] Figure 4 It is an enlarged structural diagram of the screw rod, mountain-shaped clamp and vertical purlin node;

[0032] Figure 5 It is a structural schematic diagram of the distribution of the hoop and the screw;

[0033] Figure 6 It is a structural schematic diagram of the variable cross-section section of the one-time casting formwork system of the flowering column;

[0034] As shown in the figure:

[0035] 1. Flowering columns, 2. Special-shaped walls, 3. Warped special-shaped floors;

[0036] 100. One-time pouring formwork system for flowering columns;

[0037] 110, center column, 111, shear key;

[0038] 120, concrete facing formwork, 121, uniform cross-section section, 122, variable cross-section section;

[0039] 130, hoop;

[0040] 140, vertical purlins;

[0041] 150, screw rod, 151, nut, 152, mountain-shaped card;

[0042] 160. Support rod. DETAILED DESCRIPTION

[0043] The present invention is described in detail below in conjunction with the accompanying drawings: The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0044] Please refer to Figures 1 to 6 The embodiment of the present invention provides a one-time casting formwork system 100 for a flowering column, comprising a central column 110, a concrete facing formwork 120, a hoop 130, a vertical purlin 140, a screw rod 150 and a support rod 160, wherein:

[0045] The central column 110 is arranged at the vertical center of the flowering column 1 to be constructed. In order to ensure the structural strength of the central column 110, the central column 110 can be a steel column such as an I-beam or an H-beam.

[0046] The concrete veneer template 120 is arranged around the central column 110 and at its periphery. The concrete veneer template 120 includes a uniform cross-section section 121 and a variable cross-section section 122 from bottom to top. In order to improve the strength of the concrete veneer template 120 and facilitate demoulding, the concrete veneer template 120 may include a fiberboard inner template and an outer template with smooth and delicate surfaces from inside to outside. The inner template may be a fiberboard with smooth and delicate surfaces to facilitate demoulding and improve the casting quality of the flowering column; the outer template may be a sturdy, durable and economical nine-ply board.

[0047] The hoops 130 are multiple and are arranged at intervals in the longitudinal direction around the outer periphery of the concrete veneer template 120. The hoops 130 on the variable cross-section section 122 of the concrete veneer template 120 are arranged to increase in size from bottom to top. The hoops 130 can be steel hoops formed by bending steel bars or steel pipes, or wooden hoops spliced ​​by wooden boards.

[0048] The vertical purlins 140 are multiple groups, closely attached to each of the hoop 130 and arranged around the periphery thereof. That is, multiple groups of vertical purlins 140 are distributed around the periphery of the hoop 130 with the central column 110 as the vertical center. The number of groups of vertical purlins 140 includes but is not limited to 8 groups, and each group of vertical purlins 140 has two pieces.

[0049] There are multiple screw rods 150, each of which has multiple screw rods 150. One end of each screw rod 150 passes through a certain group of vertical purlins 140 and the concrete veneer formwork 120 and is connected to the central column 110. The other end is set on a certain group of vertical purlins 140 through a mountain-shaped clamp 152 and is locked by a nut 151, that is, the nut 151 is located on the outside of the mountain-shaped clamp 152. In the uniform section 121 of the concrete veneer formwork 120, each screw rod 150 is horizontally connected to the central column 110; in the variable section 122 of the concrete veneer formwork 120, each screw rod 150 is tilted upward relative to the horizontal plane and connected to the central column 110 in an umbrella rib shape. The number of screw rods 150 in each row matches the number of groups of vertical purlins 140. Each mountain-shaped clamp 152 is clamped on two vertical purlins 140 of a group of vertical purlins 140. The screw rod 150 may be welded to the central column 110 or the shear key 111 thereof, or the screw rod 150 may be connected to the central column 110 by bolts.

[0050] The support rod 160 is located at the periphery of the concrete facing template 120 and is obliquely supported on at least part of the hoop 130. In order to improve the support strength, the support rod 160 can be a tubular object such as a steel pipe, or a columnar object such as a steel bar.

[0051] The embodiment of the present invention further provides a construction method of a flowering column, using the above-mentioned flowering column one-time casting template system 100, which may include the following steps:

[0052] Step 201 , a central column 110 is arranged at the vertical center of the flowering column 1 to be constructed.

[0053] Step 202, according to computer graphics technology, the concrete veneer template 120 is cut and assembled from bottom to top on the periphery of the central column 110, and a hoop 130 is set on the periphery of the concrete veneer template 120 according to the splicing height of the concrete veneer template 120, and a support rod 160 is installed on part of the hoop 130. The hoop 130 is limited to fall by the support rod 160 to ensure the construction safety of the template system. Among them, the concrete veneer template 120 of the uniform cross-section section 121 is a rectangular shape after the plane is unfolded, that is, the template can be cut and made according to the diameter data of the uniform cross-section section 121. Since the concrete veneer template 120 of the variable cross-section section 122 is a spatial curved surface, the spatial curved surface can be unfolded into a plane shape with the help of computer graphics technology, and the segmentation of the template is determined according to the size of the spatial curvature of the variable cross-section. For the facade with a large spatial curvature, the facade needs to be cut into more small templates to avoid misalignment of the shape. The shape and size of each hoop 130 can be generated by the cross section of the flowering column 1 using computer graphics technology. The hoop 130 needs to have a certain rigidity both in the plane and out of the plane, which is used to control the deformation of the template and the interface shape of the flower column respectively.

[0054] Step 203, as the concrete veneer formwork 120 is spliced, each group of vertical purlins 140 arranged around the outer periphery of the hoop 130 is installed, each group of vertical purlins 140 is connected by mountain-shaped clips 152 and nuts 151, and the screw 150 is passed through the concrete veneer formwork 120 and welded to the central column 110 to form a flower column one-time casting formwork system 100.

[0055] Step 204 , pouring concrete through the flowering column one-time casting template system 100 to form the flowering column 1 . When pouring concrete, the geometric shape of the concrete veneer template 120 is corrected by adjusting the nut 151 located outside the mountain-shaped clamp 152 of the screw rod 150 .

[0056] Step 205 , after the flowering column 1 reaches the hardness standard, the flowering column primary casting template system 100 is removed.

[0057] In order to ensure the structural strength of the concrete veneer template 120 at the variable cross-section section 122, the construction method of the flowering column provided by the embodiment of the present invention is that in the variable cross-section section 122 of the concrete veneer template 120, the angle of the screw 150 inclined upward relative to the horizontal plane is for:

[0058]

[0059] in, is the density of wet concrete, is the acceleration due to gravity, is the vertical height between the position of the screw 150 and the top surface of the concrete pouring, The horizontal spacing between the screw rods is 150. The vertical spacing of the screw is 150, The total weight of the concrete veneer formwork 120 and other tooling brackets corresponding to the top of a single screw 150, is the resistance of the screw 150. Among them, other tooling brackets mainly refer to: brackets and fasteners of other components that are not directly connected with the flowering column and are built on the flowering column template.

[0060] The one-time casting template system 100 of the flowering column provided by the embodiment of the present invention controls the cross-sectional shape of the flowering column to be constructed in the height direction through the hoop 130, so as to shape the concrete veneer template 120 through the hoop 130, thereby ensuring the molding quality of the flowering column 1; the hoop 130 is clamped and fixed by the vertical purlin 140 to provide constraint support for the hoop 130 while ensuring the vertical positioning of the hoop 130. The hoop 130 is clamped and fixed by the vertical purlin 140 to avoid the risk of the hoop 130, which is larger at the top and smaller at the bottom, falling under the action of gravity and construction load, thereby improving construction safety, wherein the vertical purlin 140 provides support and force for the flowering column 1 in the cross-sectional direction by the screw 150, that is, when the cross section of the flowering column 1 is circular, it is in the radial direction. The support rod 160 on part of the hoop 130 further prevents the hoop 130 from sliding down, thereby improving construction safety. A first support structure is formed for the concrete facing formwork 120 through the vertical purlins 140, the hoop 130 and the support rod 160, and a second support structure is formed for the concrete facing formwork 120 through the screw 150 and the mountain-shaped clamp 152 and the nut 151 thereon, thereby preventing the concrete facing formwork 120 from bulging and deforming when pouring concrete. The structural stability and safety of the concrete facing formwork 120 are ensured by the two support structures, thereby improving the safety and quality reliability of the one-time pouring construction of the flowering column, improving the construction accuracy of the flowering column 1, and avoiding the unfavorable situation of finding the shape of the facade by externally attaching special-shaped fillers.

[0061] Please refer to Figure 5 In the one-time casting formwork system 100 for a flowering column provided by an embodiment of the present invention, each row of screws 150 in the uniform cross-section section 121 of the concrete veneer formwork 120 is horizontally connected, and each row of screws 150 in the variable cross-section section 122 of the concrete veneer formwork 120 is obliquely connected to form the shape of an umbrella rib in an open state, thereby improving the structural stability and safety of the one-time casting formwork system 100 for a flowering column through the arrangement of the screws 150. Each row of screws is radially distributed, which improves the structural strength of supporting the concrete veneer formwork 120. The screws 150 are in the shape of umbrella ribs in the variable cross-section section 122, which can avoid the problem that the horizontal straight line distance from the screws 150 to the center column 110 is too short and the screws 150 cannot be reliably connected.

[0062] A construction method for a flowering column provided by an embodiment of the present invention can directly construct a flowering column 1 with a curved and irregular construction space through a flowering column one-time casting template system 100, and during the casting process, when the flowering column one-time casting template system 100 undergoes a certain degree of warping deformation after pouring concrete, by adjusting the nut 151 on the mountain-shaped clip 152 on the screw 150, the geometric shape of the concrete veneer template 120 can be corrected to ensure the cross-sectional shape of the flowering column 1, thereby improving the molding quality of the flowering column 1.

[0063] The embodiment of the present invention provides a construction method for a flowering column. After the flowering column 1 reaches the hardness standard, the dismantled flowering column one-time casting template system 100 can be repeatedly recycled, which has the effects of energy saving, environmental protection and green construction.

[0064] The one-time casting formwork system 100 of the flowering column provided by the embodiment of the present invention has small components and does not require large-scale lifting equipment, which is convenient for on-site construction and installation.

[0065] The present invention is not limited to the above-mentioned specific implementation modes. Obviously, the above-mentioned embodiments are only some embodiments of the embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. In this way, if these modifications and changes of the present invention fall within the scope of the claims of the present invention, the present invention is also intended to include these changes and changes.

Claims

1. A construction method for a flowering column, It is characterized in that Use a one-time pouring formwork system with flowering columns; A central column is set at the vertical center of the flowering column to be constructed; According to computer graphics technology, the concrete veneer template is cut and assembled from bottom to top on the periphery of the central column, and hoops are arranged on the periphery of the concrete veneer template according to the splicing height of the concrete veneer template, and support rods are installed on some of the hoops; With the splicing of the concrete veneer formwork, install the groups of vertical purlins arranged around the outer periphery of the hoop, connect the groups of vertical purlins through mountain-shaped clamps and nuts, and pass the screws through the concrete veneer formwork and weld them to the central column to form a one-time casting formwork system for the flower column; In the variable cross-section section of the concrete facing formwork, the angle θ of the screw rod tilting upward relative to the horizontal plane is: Where, ρ is the density of wet concrete, g is the acceleration of gravity, H is the vertical height between the screw position and the top surface of concrete pouring, Δl is the horizontal spacing between screws, Δh is the vertical spacing between screws, G is the total weight of the concrete veneer formwork and other tooling supports in the corresponding range of the top of a single screw, and R is the resistance of the screw; The flower column is formed by pouring concrete through the flower column one-time pouring formwork system. When pouring concrete, the geometric shape of the concrete veneer formwork is corrected by adjusting the nut located outside the mountain-shaped clamp of the screw.

2. The construction method of the flowering column according to claim 1, It is characterized in that The one-time casting template system of the flowering column comprises: The center column is set at the vertical center of the flowering column to be constructed; A concrete veneer template is arranged around the central column and on its periphery, and the concrete veneer template includes a uniform cross-section section and a variable cross-section section from bottom to top; The hoops are multiple and arranged at longitudinal intervals around the periphery of the concrete facing formwork; The vertical purlins are in multiple groups and are closely attached to the hoops and arranged around the outer periphery of the hoops; The screw rods are in multiple paths, each path has multiple screw rods, one end of each screw rod passes through a certain group of the vertical purlins and the concrete veneer formwork and is connected to the central column, and the other end is set on a certain group of the vertical purlins through a mountain-shaped clamp and is locked by a nut; in the uniform cross-section section of the concrete veneer formwork, each path of the screw rods is horizontally connected to the central column; in the variable cross-section section of the concrete veneer formwork, each path of the screw rods is inclined upward relative to the horizontal plane and is connected to the central column in the shape of an umbrella rib; The support rod is located at the periphery of the concrete facing formwork and is obliquely supported on at least a portion of the hoop.

3. The construction method of the flowering column according to claim 2, It is characterized in that In the one-time casting formwork system of the flowering column, the screw rod is welded or connected to the central column or its shear key by bolts.

4. The construction method of the flowering column according to claim 2, It is characterized in that In the one-time casting formwork system of the flowering column, the hoop is a steel hoop or a wooden hoop.

5. The construction method of the flowering column according to claim 2, It is characterized in that In the one-time casting formwork system of the flowering column, the concrete veneer formwork includes an inner formwork and an outer formwork from the inside to the outside.

6. The construction method of the flowering column according to claim 5, It is characterized in that In the one-time casting formwork system of the flowering column, the inner formwork is a fiberboard, and the outer formwork is a nine-ply plywood.

7. The construction method of the flowering column according to claim 2, It is characterized in that In the one-time casting formwork system of the flowering column, each group of the vertical purlins is composed of two, and each of the mountain-shaped clips is arranged on two vertical purlins of a group of the vertical purlins.

8. The construction method of the flowering column according to claim 2, It is characterized in that In the one-time casting formwork system of the flowering column, the central column is a steel column.

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