A column formwork system suitable for cast-in-place concrete construction

Abstract

The utility model discloses a column formwork system suitable for cast-in-place concrete construction, comprising a plurality of adjustable column back ribs, vertical ribs and formworks, wherein the inner surface of the formworks is used to surround the concrete column; the outer surface is connected to the inner surface of the vertical ribs; the adjustable column back ribs surround and abut the outer surface of the vertical ribs, and each adjustable column back rib has a plurality of modular holes; the adjustable column back ribs include vertically connected truss back ribs and single back ribs; or, include vertically connected truss back ribs and double back ribs, and the plurality of adjustable column back ribs are designed such that the center lines of the modular holes of the truss back ribs, single back ribs or double back ribs vertically connected together by the modular holes are located in the same plane, and different modular holes are used to enclose concrete columns with different sizes. By using the utility model, not only can the fixing requirements of the side formworks of concrete columns of different sizes be met, but also the installation cost can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to a column formwork system suitable for cast-in-place concrete construction, belonging to the technical field of building formwork. Background Art

[0002] The column formwork system is an indispensable and key tool in building construction. It is responsible for ensuring that concrete can be accurately formed according to design requirements. However, there are some problems that need to be solved in the existing column formwork system. First, the reinforcement of the traditional formwork at the panel corners is not strong enough, which may cause dust leakage during concrete pouring. Secondly, the vertical rib materials are diverse, including square timber or steel-clad timber, which makes material management and quality control complicated. In addition, the scarred parts of the wood are the weak links of the structure and may cause safety hazards during construction. Finally, the traditional back ribs are not rigid enough, especially for large-section columns, which are prone to deformation during construction, increasing the risk of safety accidents.

[0003] In order to overcome these problems, a new type of column formwork system needs to be developed. This system should be convenient for construction, economical and practical, and have higher safety. It requires innovations in reinforcement, material selection, structural design, etc. to reduce risks in construction and improve construction efficiency and quality. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a column formwork system suitable for cast-in-place concrete construction.

[0005] In order to achieve the above technical objectives, the utility model adopts the following technical solutions:

[0006] A column formwork system suitable for cast-in-place concrete construction, comprising a plurality of adjustable column back ribs, vertical ribs and formworks.

[0007] The inner surface of the template is used to surround the concrete column; the outer surface is connected to the inner surface of the vertical rib;

[0008] The adjustable column back ribs surround and abut against the outer surface of the vertical ribs, and each adjustable column back rib has a plurality of modular holes;

[0009] The adjustable column back ribs include vertically connected truss back ribs and single back ribs; or, vertically connected truss back ribs and double back ribs.

[0010] The multiple adjustable column back ribs are designed so that the center lines of the modular holes of the truss back ribs, single back ribs or double back ribs vertically connected together by modular holes are located in the same plane, and different modular holes are used to enclose concrete columns with different sizes.

[0011] Preferably, the truss back rib comprises a square tube, two trusses, a reinforcing rod, and an end baffle;

[0012] The truss is welded to the square tube;

[0013] The reinforcing rod is welded to the square tube and the truss;

[0014] The end baffle is vertically welded to one end of the square tube.

[0015] Preferably, the truss is arranged on a side of the square tube away from the template, and includes a first truss and a second truss;

[0016] One end of the first truss is welded to one end of the square tube close to the modular hole; the other end is inclined along the direction of the modular hole toward the end baffle;

[0017] One end of the second truss is welded to one end of the square tube close to the end baffle, and the other end is inclined along the direction of the end baffle toward the direction of the modular hole;

[0018] One end of the first truss intersects with one end of the second truss.

[0019] Preferably, the single back rib comprises a square tube and an end baffle;

[0020] One end of the square tube is provided with a plurality of modular holes;

[0021] The end baffle is vertically welded to one end of the square tube.

[0022] Preferably, the double back ribs include two square tubes, a connecting tube, and an end baffle;

[0023] The connecting pipe clamp is arranged at one end of the two square tubes, and is provided with a plurality of modular holes;

[0024] The end baffle is vertically welded to one end of the two square tubes.

[0025] Preferably, the square tubes are arranged vertically and parallelly along the length direction;

[0026] The length of the connecting pipe is less than or equal to the square pipe.

[0027] Preferably, the template includes a panel and a leak-proof strip;

[0028] The anti-leakage strip is fitted on one end of the panel;

[0029] One end of the template away from the leak-proof strip is vertically abutted against one end of another template close to the leak-proof strip.

[0030] Preferably, the cross section of the vertical rib is π-shaped, and one open end is connected to the template.

[0031] Preferably, the center lines of the modular holes of the truss back ribs, single back ribs and double back ribs are located in the same plane.

[0032] Preferably, a screw hole is provided in the middle of the end baffle;

[0033] The pitch of the screw holes is the same as the pitch of the modular holes, so as to allow the same bolt to pass through the screw holes and the modular holes for connection.

[0034] Compared with the prior art, the utility model provides multiple modular holes on single back ribs, double back ribs, and truss back ribs, and adopts different combinations of single back ribs and truss back ribs, double back ribs and truss back ribs, and single back ribs and double back ribs to fix the template, which can not only meet the fixation of the side templates of concrete columns of different sizes, but also effectively reduce the installation cost. At the same time, the template adopts a leak-proof strip design to avoid the occurrence of corner leakage, making the corner connection more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The overall structural diagram of the column formwork system suitable for cast-in-place concrete construction provided by the utility model;

[0036] Figure 2 It is a schematic diagram of the top view structure of the template in the column template system;

[0037] Figure 3 for Figure 2 Schematic diagram of the overall structure of the template corner connection;

[0038] Figure 4 It is a schematic diagram of the overall structure of the vertical rib connection;

[0039] Figure 5 It is a schematic diagram of the overall structure of a single back rib;

[0040] Figure 6 is a schematic diagram of the overall structure of the end baffle;

[0041] Figure 7 It is the overall structural diagram of the truss back rib;

[0042] Figure 8 It is a schematic diagram of the overall structure of the double back rib;

[0043] Fig. 9 for Figure 8 Schematic diagram of the overall structure of the middle connecting pipe;

[0044] Fig.10 It is a schematic diagram of the connection structure of double back ribs;

[0045] Fig.11 It is a schematic diagram of the connection structure of single-back rib and double-back rib. DETAILED DESCRIPTION

[0046] The technical content of the present utility model is described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] like Figure 1 As shown, the utility model discloses a column formwork system suitable for cast-in-place concrete construction, including an adjustable column back rib 100, a vertical rib 200, and a formwork 300, which is used to fix a concrete column 400. For ease of understanding, the direction facing the concrete column 400 is considered as the inside, and the direction away from the concrete column 400 is considered as the outside in the utility model. The structure of the panel 300 and the vertical rib 200 is first introduced below.

[0048] like Figure 2 and Figure 3 As shown, the template 300 includes a panel 31 and a leak-proof strip 32. The leak-proof strip 32 is a slender strip structure, arranged along the vertical direction of the panel 31, and is fixedly connected to one end of the panel 31. During installation, one end of a template away from the leak-proof strip 32 is vertically abutted against the end of another template close to the leak-proof strip 32 in sequence, so that the four templates 300 can be enclosed and fixed on the outside of the concrete column 400. Among them, the connection is blocked by the leak-proof strip 32, which can avoid the occurrence of paddle leakage and make the corner connection more secure.

[0049] like Figure 4 As shown, the vertical ribs 200 are formed by one-time roll forming using a special profile. A plurality of vertical ribs 200 are arranged on the outside of the template 300. The cross section of the vertical rib 200 is π-shaped, and one end of the opening is fixedly connected to the template 300 by a special screw.

[0050] First embodiment

[0051] like Figure 1 As shown, the adjustable column back ribs 100 in this embodiment fix the concrete column 400 by connecting the single back ribs and the truss back ribs to each other, and can use the single back ribs and truss back ribs of one specification to enclose concrete columns 400 of different sizes.

[0052] like Figure 5 and Figure 6 As shown, the single back corrugated board includes a square tube 1 and an end baffle 3.

[0053] One end of the square tube 1 is provided with a plurality of modular holes 20 penetrating the front and rear side panels. The modular holes 20 are spaced at the same intervals and are used to vertically connect a plurality of back ribs (see Figure 1 The center lines of the modular holes of the truss back ribs, single back ribs and double back ribs are located in the same plane.

[0054] The end baffle 3 is welded to the end of the square tube 1 away from the modular hole 20, and a screw hole 30 is horizontally opened in the middle position, so that a back rib (for example, a single back rib) can be fixed to another back rib (for example, a single back rib) by passing a bolt through the end baffle 3 into the cavity of the square tube 1. Therefore, during installation, two bolts are passed through the modular hole 20 on the square tube 1 and enter the screw hole 30 of the end baffle 3 of the single back rib. In other words, the modular hole 20 of the single back rib and the screw hole 30 of the end baffle 3 of the other single back rib are fixed by bolt connection.

[0055] like Figure 7 As shown, the truss back rib includes a square tube 1, two trusses 6, a reinforcing rod 7, and an end baffle 3.

[0056] Two trusses 6 are arranged on the side of the square tube 1 away from the template 300, including a first truss 61 and a second truss 62. One end of the first truss 61 is welded to the position of the square tube 1 close to the modular hole 20, and the other end is inclined along the direction of the modular hole toward the end baffle 3. One end of the second truss 62 is welded to the position close to the end baffle 3, and the other end is inclined along the direction of the end baffle 3 toward the modular hole 20. The first truss 61 and the second truss 62 have the same length, are inclined toward each other and intersect, and form an isosceles triangle structure with the square tube 1.

[0057] One end of the reinforcing rod 7 is vertically welded to the square tube 1, and the other end is welded to the intersection of the two trusses, so that the truss structure of the back rib is more solid.

[0058] The end baffle 3 is welded to one end of the square tube 1, and a screw hole 30 is horizontally opened in the middle position, so that the truss back rib can be fixed to another truss back rib by passing the bolt through the end baffle 3 and entering the cavity of the square tube 1. During installation, two bolts are passed through the modular holes 20 on the square tube 1 and enter the screw holes 30 of the end baffle 3 of the truss back rib. In other words, the modular holes 20 of the truss back rib and the screw holes 30 of the end baffle 3 of the other truss back rib are fixed by bolt connection.

[0059] like Figure 1 As shown, it should be noted that in actual installation, one end of the modular hole of a single back rib can be vertically connected not only to one end of the end baffle of another single back rib, but also to one end of the end baffle of a truss back rib. Similarly, one end of the modular hole of a truss back rib can be vertically connected not only to one end of the end baffle of another truss back rib, but also to one end of the end baffle of a single back rib.

[0060] In the assembled column formwork system, four formworks 300 overlap each other and surround the concrete column 400, and a plurality of vertical ribs 200 are arranged on the outside of the four formworks 300. When installing the back ribs, the modular holes 20 of a single back rib are vertically connected with the screw holes 30 of the end baffle 3 of another truss back rib by bolts, and then the modular holes 20 of the square tube 1 of the truss back rib are vertically connected with the screw holes 30 of the end baffle 3 of another single back rib by bolts, so that the connection of the four back ribs can be completed, and the vertical ribs 200 and the formworks 300 can be stably fixed around the concrete column 400.

[0061] Second embodiment

[0062] Different from the first embodiment, the back ribs in this embodiment are connected with each other by double back ribs and truss back ribs to fix the concrete column 400.

[0063] like Figure 8 As shown, the double back rib comprises two square tubes 1, a connecting tube 2, an end baffle 3, and bolts 4. More preferably, the double back rib further comprises a plurality of reinforcing blocks 5 welded between the two square tubes 1.

[0064] The square tube 1 is a strip-shaped hollow structure with a rectangular cross section. The two square tubes 1 are arranged vertically and parallelly along the length direction of the square tube 1 (ie, in the installed state, the two square tubes 1 are parallel in the direction of the horizontal plane).

[0065] like Fig. 9 As shown, the connecting pipe 2 is a strip-shaped hollow structure, which is clamped at one end of the two square tubes 1 by welding, and the upper and lower surfaces are fixedly connected to the two square tubes 1 respectively. The cross-sectional size of the connecting pipe 2 is adapted to the square tube 1, and a plurality of modular holes 20 are opened on the four side walls or two opposite side walls for vertically connecting the two back ribs (see Fig.10 The double back ribs are connected to each other).

[0066] like Fig.10 As shown, the end baffle 3 is arranged at one end away from the connecting pipe 2, and is vertically welded to the two square tubes 1, and a screw hole 30 is opened in the middle. The two screw holes 30 are horizontally symmetrically arranged in the middle of the end baffle 3, and the spacing is the same as the spacing of the modular holes 20 opened on the connecting pipe 2. Therefore, by using bolts to pass through the end baffle 3 and enter the cavity of the other double-back square tube 1, the two double-back square tubes can be fixedly connected. During installation, two bolts are passed through the modular holes 20 of one double-back square tube and enter the screw holes 30 of the end baffle 3 of the other double-back square tube. In other words, the modular holes 20 of one double-back square tube are fixed to the screw holes 30 of the end baffle 3 of the other double-back square tube by bolt connection.

[0067] The bolt 4 is a high-strength bolt. Compared with ordinary bolts, the high-strength bolt has the characteristics of high strength, high durability and strong adaptability. It is not easy to break when bearing a larger load, thereby ensuring the stability of the connection. At the same time, the high-strength bolt has a long service life and is not easy to oxidize, rust or corrode. The two bolts 4 pass through the module hole 20 and the screw hole 30 to meet the corner connection of the two double back ribs.

[0068] Similar to the first embodiment, in actual installation, one end of the modular hole of the double back rib can be vertically connected not only to one end of the end stop plate of another double back rib, but also to one end of the end stop plate of the truss back rib. Similarly, one end of the modular hole of the truss back rib can be vertically connected not only to one end of the end stop plate of another truss back rib, but also to one end of the end stop plate of the double back rib.

[0069] In the assembled column formwork system, four formworks 300 overlap each other and surround the concrete column 400, and a plurality of vertical ribs 200 are arranged on the outside of the four formworks 300. When installing the back ribs, the modular holes 20 of the connecting pipe 2 of the double back ribs are vertically connected with the screw holes 30 of the end baffle 3 of another truss back rib by using bolts 4, and then the modular holes 20 of the square tube 1 of the truss back ribs are vertically connected with the screw holes 30 of the end baffle 3 of another double back rib by using bolts 4, so that the connection of the four back ribs can be completed, and the vertical ribs 200 and the formworks 300 can be stably fixed around the concrete column 400.

[0070] Third embodiment

[0071] Different from the first embodiment and the second embodiment, the back ribs in this embodiment are connected by double back ribs and single back ribs to fix the concrete column 400.

[0072] like Fig.11 As shown, when installing the back ribs, the modular holes 20 of the connecting tube 2 of the double back ribs are vertically connected with the screw holes 30 of the end baffle 3 of another single back rib with bolts 4, and then the modular holes 20 of the square tube 1 of the single back rib are vertically connected with the screw holes 30 of the end baffle 3 of another double back rib with bolts 4, so that the connection of the four back ribs can be completed, and the vertical ribs 200 and the template 300 can be stably fixed around the concrete column 400.

[0073] It should be noted that there are multiple modular holes 20 in the length direction (horizontal direction) of the square tube. Therefore, if the cross-section of the column is large, the end baffle of one back rib is connected with the modular hole of another back rib far away from the end baffle by bolts, so that the area of ​​the enclosed cross-section between the four back ribs is increased, which satisfies the casting of the large cross-section column; if the cross-section of the column is small, the end baffle of one back rib is connected with the modular hole of another back rib close to the end baffle by bolts, so that the area of ​​the enclosed cross-section between the four back ribs is reduced. The installer can select a flexible configuration combination of single back rib and truss back rib, double back rib and truss back rib, single back rib and double back rib for template fixation according to the actual size of each side of the concrete column 400, which can not only meet the template fixation of sides of different sizes, but also effectively reduce the installation cost.

[0074] In summary, the utility model provides a column formwork system suitable for cast-in-place concrete construction, which can not only meet the fixation of the side formwork of concrete columns of different sizes, but also effectively reduce the installation cost by setting multiple modular holes on single back ribs, double back ribs, and truss back ribs, and using a combination of single back ribs and truss back ribs, double back ribs and truss back ribs, and single back ribs and double back ribs for formwork fixation. At the same time, the formwork adopts a leak-proof strip design to avoid the occurrence of corner leakage, making the corner connection more secure.

[0075] The column formwork system suitable for cast-in-place concrete construction provided by the utility model is described in detail above. For those skilled in the art, any obvious changes made to the utility model without departing from the essence of the utility model will constitute an infringement of the patent right of the present invention and will bear corresponding legal responsibilities.

Claims

1. A column formwork system suitable for cast-in-place concrete construction, characterized in that It includes multiple adjustable column back ribs, vertical ribs and formwork. The inner surface of the template is used to surround the concrete column; the outer surface is connected to the inner surface of the vertical rib; The adjustable column back ribs surround and abut against the outer surface of the vertical ribs, and each adjustable column back rib has a plurality of modular holes; The adjustable column back ribs include vertically connected truss back ribs and single back ribs; or, including vertically connected truss backs and double backs, The multiple adjustable column back ribs are designed so that the center lines of the modular holes of the truss back ribs, single back ribs or double back ribs vertically connected together by modular holes are located in the same plane, and different modular holes are used to enclose concrete columns with different sizes.

2. The column formwork system for cast-in-place concrete construction according to claim 1, characterized in that: The truss back ribs include square tubes, two trusses, and end baffles; The truss is welded to the square tube; The end baffle is vertically welded to one end of the square tube.

3. The column formwork system for cast-in-place concrete construction according to claim 2, characterized in that: The truss is arranged on a side of the square tube away from the template, and includes a first truss and a second truss; One end of the first truss is welded to one end of the square tube close to the modular hole; the other end is inclined along the direction of the modular hole toward the end baffle; One end of the second truss is welded to one end of the square tube close to the end baffle, and the other end is inclined along the direction of the end baffle toward the direction of the modular hole; One end of the first truss intersects with one end of the second truss.

4. The column formwork system for cast-in-place concrete construction according to claim 1, characterized in that: The single back rib comprises a square tube and an end baffle; One end of the square tube is provided with a plurality of modular holes; The end baffle is vertically welded to one end of the square tube.

5. The column formwork system for cast-in-place concrete construction according to claim 1, characterized in that: The double back ribs include two square tubes, a connecting tube, and an end baffle; The connecting pipe clamp is arranged at one end of the two square tubes, and is provided with a plurality of modular holes; The end baffle is vertically welded to one end of the two square tubes.

6. The column formwork system for cast-in-place concrete construction according to claim 5, characterized in that: The square tubes are arranged vertically and parallelly along the length direction; The length of the connecting pipe is less than or equal to the square pipe.

7. The column formwork system for cast-in-place concrete construction according to claim 1, characterized in that: The template includes a panel and a leak-proof strip; The anti-leakage strip is fitted on one end of the panel; One end of the template away from the leak-proof strip is vertically abutted against one end of another template close to the leak-proof strip.

8. The column formwork system for cast-in-place concrete construction according to claim 1, characterized in that: The cross section of the vertical rib is in the shape of a letter "π", and one open end is connected to the template.

9. The column formwork system for cast-in-place concrete construction according to claim 7, characterized in that: The center lines of the modular holes of the truss back ribs, single back ribs and double back ribs are located in the same plane.

10. The column formwork system for cast-in-place concrete construction according to any one of claims 2 to 6, characterized in that: A screw hole is provided in the middle of the end baffle; The pitch of the screw holes is the same as the pitch of the modular holes, so as to allow the same bolt to pass through the screw holes and the modular holes for connection.

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