Splicing steel formwork system for bare concrete circular truncated cone column

Abstract

The utility model provides a fair-faced concrete circular truncated cone column assembling steel formwork system, a notch of a front arc-shaped steel formwork and a notch of a rear arc-shaped steel formwork are oppositely arranged in a front-back abutting mode, and the diameter of a circle where an arc at the upper end of the front arc-shaped steel formwork is located is smaller than that of a circle where an arc at the lower end of the front arc-shaped steel formwork is located. The diameter of a circle where the upper end arc of the rear arc-shaped steel template is located is smaller than that of a circle where the lower end arc of the rear arc-shaped steel template is located, so that a circular truncated cone-shaped hollow cavity is formed between the front arc-shaped steel template and the rear arc-shaped steel template; the front left connecting plate and the rear left connecting plate abut against each other front and back and are positioned and fixed through a left positioning pin, a left fastening bolt and a left fastening nut, and the front right connecting plate and the rear right connecting plate abut against each other front and back and are positioned and fixed through a right positioning pin, a right fastening bolt and a right fastening nut. The utility model has the advantages of few abutted seams, firm fixation, tight abutted seams, easy demoulding and good clear water forming effect.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to the technical field of fair-faced concrete round platform column formwork system, specifically refers to a fair-faced concrete round platform column assembled steel formwork system. Background Art

[0002] Building construction refers to the production activities in the implementation stage of engineering construction. It is the construction process of various buildings. It can also be said to be the process of turning various lines on the design drawings into physical objects at designated locations. It includes foundation engineering construction, main structure construction, roof engineering construction, decoration engineering construction, etc.

[0003] The exposed concrete round platform column has no decoration on the surface and is cast in one step. The natural texture effect of cast-in-place concrete is used as the finishing surface. The special shape exposed concrete column template design and reinforcement are the key to ensuring the exposed concrete forming effect.

[0004] Conventional plain concrete round column formwork uses wooden formwork and round hoops to lock and fix. Since the upper and lower diameters of the round column are inconsistent, it is impossible to use round hoops to fix and lock it, and conventional wooden formwork cannot be used to process the finished round column formwork. If the plain concrete round column formwork is spliced ​​with vertical strip wooden formwork, there are many joints and the forming effect of the joints is not good, which has a great impact on the clear water effect, so it cannot be used. In addition, the wooden formwork installation loss is large, it is not environmentally friendly, and it cannot be prefabricated for hoisting. The upper and lower diameters of the plain concrete round column formwork are different, so it cannot be fixed by conventional fixing methods.

[0005] Therefore, it is hoped to provide a fair-faced concrete truncated column formwork system, which has few joints, is firmly fixed, has tight joints, is easy to demould, and has a good fair-faced forming effect. Utility Model Content

[0006] In order to overcome the shortcomings of the above-mentioned prior art, one purpose of the utility model is to provide a steel formwork system for assembling a round platform column of fair-faced concrete, which has few joints, is firmly fixed, has tight joints, is easy to demould, has a good fair-faced forming effect, and is suitable for large-scale promotion and application.

[0007] Another object of the utility model is to provide a steel formwork system for assembling a round platform column of fair-faced concrete, which has an ingenious design, a simple structure, simple construction, low construction cost, and is suitable for large-scale promotion and application.

[0008] In order to achieve the above purpose, the utility model provides a steel formwork system for assembling a round platform column of a plain concrete, which is characterized by comprising a front arc steel formwork, a rear arc steel formwork, a front left connecting plate, a front right connecting plate, a rear left connecting plate, a rear right connecting plate, a left positioning pin, a left fastening bolt, a left fastening nut, a right positioning pin, a right fastening bolt and a right fastening nut, wherein:

[0009] The front arc steel template and the rear arc steel template are both arranged vertically and in the left-right direction, the notch of the front arc steel template is arranged backward, and the notch of the rear arc steel template is arranged forward, the notch of the front arc steel template and the notch of the rear arc steel template are arranged relative to each other front and back, the diameter of the circle where the upper arc of the front arc steel template is located is smaller than the diameter of the circle where the lower arc of the front arc steel template is located, and the diameter of the circle where the upper arc of the rear arc steel template is located is smaller than the diameter of the circle where the lower arc of the rear arc steel template is located, thereby forming a truncated cone-shaped hollow cavity between the front arc steel template and the rear arc steel template;

[0010] The front left connecting plate and the front right connecting plate are both arranged vertically and are both inclined along the left and right directions and are arranged in an eight-shaped shape with each other along the left and right directions. The front left connecting plate and the front right connecting plate are respectively located on the left and right sides of the front arc-shaped steel formwork and are both connected to the front arc-shaped steel formwork. The rear left connecting plate and the rear right connecting plate are respectively located on the left and right sides of the rear arc-shaped steel formwork and are both connected to the rear arc-shaped steel formwork. The front left connecting plate and the rear left connecting plate are arranged against each other front and back. The left positioning pin is arranged along the front-to-back direction and is inserted into the front left connecting plate and the rear left connecting plate along the front-to-back direction. The left fastening bolt is arranged along the front-to-back direction and is inserted into the front left connecting plate, the rear left connecting plate and the left fastening nut along the front-to-back direction and is threadedly engaged with the left fastening bolt The bolts are configured to secure the rear panel with the support frame and the rear right plate, and the bolts are configured to secure the rear panel with the support frame.

[0011] Preferably, the number of the left fastening bolts and the number of the right fastening bolts are both 14.

[0012] Preferably, the bare concrete truncated cone column assembly steel formwork system also includes a front vertical keel, a front transverse stiffening plate, a rear vertical keel and a rear transverse stiffening plate, the front vertical keel is located in front of the front arc-shaped steel formwork and is connected to the front arc-shaped steel formwork and is arranged along the generatrix of the front arc-shaped steel formwork, the number of the front vertical keels is multiple, and the multiple front vertical keels are arranged at intervals along the arc direction of the front arc-shaped steel formwork, the front transverse stiffening plate and the rear transverse stiffening plate are both arc-shaped stiffening plates and are arranged horizontally, the notch of the front transverse stiffening plate is arranged backward, the front transverse stiffening plate is located in front of the front arc-shaped steel formwork and the front vertical keel and is respectively connected to the front arc-shaped steel formwork and the front vertical keel, the front transverse stiffening plate There are multiple front transverse stiffening plates, and the multiple front transverse stiffening plates are spaced apart from each other along the busbar of the front arc-shaped steel formwork. The rear vertical keel is located behind the rear arc-shaped steel formwork and connected to the rear arc-shaped steel formwork and is arranged along the busbar of the rear arc-shaped steel formwork. There are multiple rear vertical keels, and the multiple rear vertical keels are spaced apart from each other along the arc direction of the rear arc-shaped steel formwork. The notch of the rear transverse stiffening plate is arranged forward, and the rear transverse stiffening plate is located behind the rear arc-shaped steel formwork and the rear vertical keel and is respectively connected to the rear arc-shaped steel formwork and the rear vertical keel. There are multiple rear transverse stiffening plates, and the multiple rear transverse stiffening plates are spaced apart from each other along the busbar of the rear arc-shaped steel formwork.

[0013] More preferably, the front vertical keel and the rear vertical keel are both channel steels, the front vertical keel is arranged tangent to the front arc-shaped steel formwork, and the notch of the front vertical keel faces the front arc-shaped steel formwork, and the rear vertical keel is arranged tangent to the rear arc-shaped steel formwork, and the notch of the rear vertical keel faces the rear arc-shaped steel formwork.

[0014] More preferably, the number of the front vertical keels and the number of the rear vertical keels are both 4.

[0015] More preferably, the number of the front transverse stiffening plates and the number of the rear transverse stiffening plates are both 8.

[0016] Preferably, the bare concrete truncated column assembly steel formwork system also includes a front left stiffening rib plate, a front right stiffening rib plate, a rear left stiffening rib plate and a rear right stiffening rib plate, the front left stiffening rib plate, the front right stiffening rib plate, the rear left stiffening rib plate and the rear right stiffening rib plate are all horizontally arranged, the front left stiffening rib plate is located in front of the front left connecting plate and on the left side of the front arc-shaped steel formwork and are respectively connected to the front left connecting plate and the front arc-shaped steel formwork, the front right stiffening rib plate is located in front of the front right connecting plate and on the right side of the front arc-shaped steel formwork and are respectively connected to the front right connecting plate and the front arc-shaped steel formwork, the rear left stiffening rib plate is located behind the rear left connecting plate and on the left side of the rear arc-shaped steel formwork and are respectively connected to the rear left The connecting plate and the rear arc-shaped steel formwork, the rear right stiffening rib plate is located behind the rear right connecting plate and to the right of the rear arc-shaped steel formwork and respectively connects the rear right connecting plate and the rear arc-shaped steel formwork, the number of the front left stiffening rib plates, the number of the front right stiffening rib plates, the number of the rear left stiffening rib plates and the number of the rear right stiffening rib plates are all multiple, the multiple front left stiffening rib plates are spaced apart from each other along the length direction of the front left connecting plate, the multiple front right stiffening rib plates are spaced apart from each other along the length direction of the front right connecting plate, the multiple rear left stiffening rib plates are spaced apart from each other along the length direction of the rear left connecting plate, and the multiple rear right stiffening rib plates are spaced apart from each other along the length direction of the rear right connecting plate.

[0017] More preferably, the number of the front left stiffening ribs, the number of the front right stiffening ribs, the number of the rear left stiffening ribs and the number of the rear right stiffening ribs are all seven.

[0018] Preferably, the bare concrete truncated cone column assembled steel formwork system also includes a front lifting ear and a rear lifting ear, the front lifting ear and the rear lifting ear are both vertically arranged and are both arranged along the left and right direction, the lower part of the front lifting ear is located in front of the upper part of the front arc-shaped steel formwork and is connected to the upper part of the front arc-shaped steel formwork, the upper part of the front lifting ear exposes the upper part of the front arc-shaped steel formwork upward, the lower part of the rear lifting ear is located behind the upper part of the rear arc-shaped steel formwork and is connected to the upper part of the rear arc-shaped steel formwork, and the upper part of the rear lifting ear exposes the upper part of the rear arc-shaped steel formwork upward.

[0019] Preferably, the bare concrete round platform column assembly steel formwork system further includes a fixed bracket, which includes a front fixed bottom bar, a rear fixed bottom bar, a left fixed rod, a right fixed rod, a front fixed rod, a rear fixed rod, a left support tube, a right support tube, a front support tube and a rear support tube, wherein:

[0020] The front fixed bottom bar and the rear fixed bottom bar are both arranged along the left-right direction and spaced apart from each other front to back and are respectively located in front of the bottom of the front arc-shaped steel formwork and behind the bottom of the rear arc-shaped steel formwork. The left fixed bar and the right fixed bar are both arranged along the front-back direction and spaced apart from each other left to right. The middle part of the left fixed bar is located on the left side of the front left connecting plate and the rear left connecting plate and respectively abuts against the front left connecting plate and the rear left connecting plate. The front end and the rear end of the left fixed bar are respectively detachably fixed to the left end of the front fixed bottom bar and the left end of the rear fixed bottom bar. The middle part of the right fixed bar is located on the right side of the front right connecting plate and the rear right connecting plate and respectively abuts against the front right connecting plate and The rear right connecting plate, the front end and the rear end of the right fixing rod are respectively detachably fixed to the right end of the front fixing bottom rod and the right end of the rear fixing bottom rod, the front fixing rod and the rear fixing rod are both arranged along the left-right direction and spaced apart from each other front to back, the middle part of the front fixing rod is located in front of the front arc-shaped steel template and abuts against the front arc-shaped steel template, the left end and the right end of the front fixing rod are respectively detachably fixed to the front end of the left fixing rod and the front end of the right fixing rod, the middle part of the rear fixing rod is located behind the rear arc-shaped steel template and abuts against the rear arc-shaped steel template, and the left end and the right end of the rear fixing rod are respectively detachably fixed to the rear end of the left fixing rod and the rear end of the right fixing rod;

[0021] The left support tube and the right support tube are both inclined along the left-right direction and are arranged in an eight-shape with each other along the left-right direction. The right end of the left support tube is located on the left side of the front arc-shaped steel template and abuts against the front arc-shaped steel template, and the left end of the right support tube is located on the right side of the front arc-shaped steel template and abuts against the front arc-shaped steel template. The front support tube and the rear support tube are both inclined along the front-back direction and are arranged in an eight-shape with each other along the front-back direction. The rear end of the front support tube is located in front of the front arc-shaped steel template and abuts against the front arc-shaped steel template, and the front end of the rear support tube is located behind the rear arc-shaped steel template and abuts against the rear arc-shaped steel template.

[0022] The beneficial effects of the utility model are mainly:

[0023] 1. The notch of the front arc steel formwork and the notch of the rear arc steel formwork of the steel formwork system for assembling fair-faced concrete truncated column of the utility model are relatively abutted front and back, the diameter of the circle where the upper arc of the front arc steel formwork is located is smaller than the diameter of the circle where the lower arc of the front arc steel formwork is located, and the diameter of the circle where the upper arc of the rear arc steel formwork is located is smaller than the diameter of the circle where the lower arc of the rear arc steel formwork is located, thereby forming a truncated columnar hollow cavity between the front arc steel formwork and the rear arc steel formwork, the front left connecting plate and the rear left connecting plate are abutted against each other front and back and are positioned and fixed by the left positioning pin, the left fastening bolt and the left fastening nut, the front right connecting plate and the rear right connecting plate are abutted against each other front and back and are positioned and fixed by the right positioning pin, the right fastening bolt and the right fastening nut, therefore, the utility model has few joints, is firmly fixed, has tight joints, is easy to demould, has good fair-faced forming effect, and is suitable for large-scale promotion and application.

[0024] 2. The notches of the front arc steel formwork and the rear arc steel formwork of the steel formwork system for assembling fair-faced concrete truncated cone columns of the utility model are relatively abutted against each other front and back, the diameter of the circle where the upper arc of the front arc steel formwork is located is smaller than the diameter of the circle where the lower arc of the front arc steel formwork is located, and the diameter of the circle where the upper arc of the rear arc steel formwork is located is smaller than the diameter of the circle where the lower arc of the rear arc steel formwork is located, thereby forming a truncated cone-shaped hollow cavity between the front arc steel formwork and the rear arc steel formwork, the front left connecting plate and the rear left connecting plate are abutted against each other front and back and are positioned and fixed by the left positioning pin, the left fastening bolt and the left fastening nut, the front right connecting plate and the rear right connecting plate are abutted against each other front and back and are positioned and fixed by the right positioning pin, the right fastening bolt and the right fastening nut, therefore, the utility model has ingenious design, simple structure, simple construction, low construction cost, and is suitable for large-scale promotion and application.

[0025] These and other objects, features and advantages of the present invention are fully reflected in the following detailed description and drawings, and can be achieved by the means, devices and their combinations specifically pointed out in the content of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a three-dimensional schematic diagram of a specific embodiment of the utility model of a steel formwork system for assembling a round platform column of plain concrete Figure 1 .

[0027] Figure 2 yes Figure 1 The three-dimensional schematic diagram of the specific embodiment shown Figure 2 .

[0028] (Explanation of symbols)

[0029] 1 front arc steel formwork; 2 rear arc steel formwork; 3 front left connecting plate; 4 front right connecting plate; 5 rear left connecting plate; 6 rear right connecting plate; 7 left positioning pin; 8 left fastening bolt; 9 right positioning pin; 10 right fastening bolt; 11 front vertical keel; 12 front transverse stiffening plate; 13 rear vertical keel; 14 rear transverse stiffening plate; 15 front left stiffening rib plate; 16 front right stiffening rib plate; 17 rear left stiffening rib plate; 18 rear right stiffening rib plate; 19 front lifting ear; 20 rear lifting ear; 21 fixed bracket; 22 front fixed bottom rod; 23 rear fixed bottom rod; 24 left fixed rod; 25 right fixed rod; 26 front fixed rod; 27 rear fixed rod; 28 left support tube; 29 right support tube; 30 front support tube; 31 rear support tube. DETAILED DESCRIPTION

[0030] In order to more clearly understand the technical content of the present invention, the following embodiments are given in detail.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0032] See also Figure 1-2 As shown, in a specific embodiment of the utility model, the utility model of the utility model of the concrete round platform column assembly steel formwork system includes a front arc steel formwork 1, a rear arc steel formwork 2, a front left connecting plate 3, a front right connecting plate 4, a rear left connecting plate 5, a rear right connecting plate 6, a left positioning pin 7, a left fastening bolt 8, a left fastening nut (not shown in the figure), a right positioning pin 9, a right fastening bolt 10 and a right fastening nut (not shown in the figure), wherein:

[0033] The front arc-shaped steel template 1 and the rear arc-shaped steel template 2 are both arranged vertically and in the left-right direction, the notch of the front arc-shaped steel template 1 is arranged backward, and the notch of the rear arc-shaped steel template 2 is arranged forward, the notch of the front arc-shaped steel template 1 and the notch of the rear arc-shaped steel template 2 are arranged relatively against each other front and back, the diameter of the circle where the upper arc of the front arc-shaped steel template 1 is located is smaller than the diameter of the circle where the lower arc of the front arc-shaped steel template 1 is located, and the diameter of the circle where the upper arc of the rear arc-shaped steel template 2 is located is smaller than the diameter of the circle where the lower arc of the rear arc-shaped steel template 2 is located, thereby forming a truncated cone-shaped hollow cavity between the front arc-shaped steel template 1 and the rear arc-shaped steel template 2;

[0034] The front left connecting plate 3 and the front right connecting plate 4 are both arranged vertically and are both inclined along the left and right directions and are arranged in an eight-shaped shape with each other along the left and right directions. The front left connecting plate 3 and the front right connecting plate 4 are respectively located on the left and right sides of the front arc-shaped steel formwork 1 and are both connected to the front arc-shaped steel formwork 1. The rear left connecting plate 5 and the rear right connecting plate 6 are both arranged vertically and are both inclined along the left and right directions and are arranged in an eight-shaped shape with each other along the left and right directions. The rear left connecting plate 5 and the rear right connecting plate 6 are respectively located on the left and right sides of the rear arc-shaped steel formwork 2 and are both connected to the rear arc-shaped steel formwork 2. The front left connecting plate 3 and the rear left connecting plate 5 are arranged against each other front and back. The left positioning pin 7 is arranged along the front and rear directions and is inserted into the front left connecting plate 3 and the rear left connecting plate 5 along the front and rear directions. The left fastening bolt 8 is arranged along the front and rear directions and is inserted into the front left connecting plate 3, the rear left connecting plate 5 and the left fastening nut along the front and rear directions and is threadedly engaged with the left fastening nut , the number of the left fastening bolts 8 is multiple, and the multiple left fastening bolts 8 are arranged at intervals along the length direction of the front left connecting plate 3, the number of the left fastening nuts is the same as the number of the left fastening bolts 8, and the left fastening nuts and the left fastening bolts 8 are arranged in a one-to-one correspondence, the front right connecting plate 4 and the rear right connecting plate 6 are arranged against each other front and back, the right positioning pin 9 is arranged along the front-to-back direction and inserted into the front right connecting plate 4 and the rear right connecting plate 6 along the front-to-back direction, the right fastening bolt 10 is arranged along the front-to-back direction and the front right connecting plate 4, the rear right connecting plate 6 and the right fastening nut are inserted along the front-to-back direction and threadedly engage the right fastening nut, the number of the right fastening bolts 10 is multiple, and the multiple right fastening bolts 10 are arranged in a spaced relationship along the length direction of the front right connecting plate 4, the number of the right fastening nuts is the same as the number of the right fastening bolts 10, and the right fastening nuts and the right fastening bolts 10 are arranged in a one-to-one correspondence.

[0035] The number of the left fastening bolts 8 and the number of the right fastening bolts 10 can be determined as needed. The above-mentioned "multiple" refers to more than 2. In a specific embodiment of the present invention, the number of the left fastening bolts 8 and the number of the right fastening bolts 10 are both 14.

[0036] The bare concrete truncated column assembled steel formwork system may also include any other suitable components, see Figure 1-2As shown, in a specific embodiment of the utility model, the bare concrete truncated cone column assembly steel formwork system also includes a front vertical keel 11, a front transverse stiffening plate 12, a rear vertical keel 13 and a rear transverse stiffening plate 14, the front vertical keel 11 is located in front of the front arc-shaped steel formwork 1 and is connected to the front arc-shaped steel formwork 1 and is arranged along the generatrix of the front arc-shaped steel formwork 1, the number of the front vertical keels 11 is multiple, and the multiple front vertical keels 11 are arranged at intervals along the arc direction of the front arc-shaped steel formwork 1, the front transverse stiffening plate 12 and the rear transverse stiffening plate 14 are both arc-shaped stiffening plates and are arranged horizontally, the notch of the front transverse stiffening plate 12 is arranged backward, the front transverse stiffening plate 12 is located in front of the front arc-shaped steel formwork 1 and the front vertical keel 11 and is respectively connected to the front arc-shaped steel formwork 1 and the front vertical keel The steel formwork 11 is provided with a plurality of front transverse stiffening plates 12, and the plurality of front transverse stiffening plates 12 are arranged at intervals along the busbar of the front arc-shaped steel formwork 1. The rear vertical keel 13 is located behind the rear arc-shaped steel formwork 2 and is connected to the rear arc-shaped steel formwork 2 and is arranged along the busbar of the rear arc-shaped steel formwork 2. The plurality of rear vertical keels 13 are arranged at intervals along the arc direction of the rear arc-shaped steel formwork 2. The recess of the rear transverse stiffening plate 14 is arranged forward. The rear transverse stiffening plate 14 is located behind the rear arc-shaped steel formwork 2 and the rear vertical keel 13 and is respectively connected to the rear arc-shaped steel formwork 2 and the rear vertical keel 13. The plurality of rear transverse stiffening plates 14 are arranged at intervals along the busbar of the rear arc-shaped steel formwork 2.

[0037] The front vertical keel 11 and the rear vertical keel 13 can be any suitable building components. In a specific embodiment of the present utility model, the front vertical keel 11 and the rear vertical keel 13 are both channel steels, the front vertical keel 11 is tangent to the front arc-shaped steel formwork 1, and the notch of the front vertical keel 11 faces the front arc-shaped steel formwork 1, and the rear vertical keel 13 is tangent to the rear arc-shaped steel formwork 2, and the notch of the rear vertical keel 13 faces the rear arc-shaped steel formwork 2.

[0038] The number of the front vertical keels 11 and the number of the rear vertical keels 13 can be determined as required, see Figure 1-2 As shown, in a specific embodiment of the present invention, the number of the front vertical keels 11 and the number of the rear vertical keels 13 are both four.

[0039] The number of the front transverse stiffening plates 12 and the number of the rear transverse stiffening plates 14 can be determined as needed. The above-mentioned "multiple pieces" refers to more than 2 pieces. Figure 1-2As shown, in a specific embodiment of the present utility model, the number of the front transverse stiffening plates 12 and the number of the rear transverse stiffening plates 14 are both 8.

[0040] The bare concrete truncated column assembled steel formwork system may also include any other suitable components, see Figure 1-2 As shown, in a specific embodiment of the utility model, the bare concrete truncated cone column assembled steel formwork system also includes a front left stiffening rib plate 15, a front right stiffening rib plate 16, a rear left stiffening rib plate 17 and a rear right stiffening rib plate 18, the front left stiffening rib plate 15, the front right stiffening rib plate 16, the rear left stiffening rib plate 17 and the rear right stiffening rib plate 18 are all horizontally arranged, the front left stiffening rib plate 15 is located before the front left connecting plate 3 and on the left side of the front arc-shaped steel formwork 1 and respectively connects the front left connecting plate 3 and the front arc-shaped steel formwork 1, the front right stiffening rib plate 16 is located before the front right connecting plate 4 and on the right side of the front arc-shaped steel formwork 1 and respectively connects the front right connecting plate 4 and the front arc-shaped steel formwork 1, and the rear left stiffening rib plate 17 is located behind the rear left connecting plate 5 and on the left side of the rear arc-shaped steel formwork 2 The rear left connecting plate 5 and the rear arc-shaped steel formwork 2 are connected respectively, the rear right stiffening rib 18 is located behind the rear right connecting plate 6 and on the right side of the rear arc-shaped steel formwork 2 and is connected respectively to the rear right connecting plate 6 and the rear arc-shaped steel formwork 2, the number of the front left stiffening ribs 15, the number of the front right stiffening ribs 16, the number of the rear left stiffening ribs 17 and the number of the rear right stiffening ribs 18 are all multiple, the multiple front left stiffening ribs 15 are spaced apart from each other along the length direction of the front left connecting plate 3, the multiple front right stiffening ribs 16 are spaced apart from each other along the length direction of the front right connecting plate 4, the multiple rear left stiffening ribs 17 are spaced apart from each other along the length direction of the rear left connecting plate 5, and the multiple rear right stiffening ribs 18 are spaced apart from each other along the length direction of the rear right connecting plate 6.

[0041] The front left stiffening rib plate 15, the front right stiffening rib plate 16, the rear left stiffening rib plate 17 and the rear right stiffening rib plate 18 may have any suitable shape, see Figure 1-2 As shown, in a specific embodiment of the present utility model, the front left stiffening rib plate 15, the front right stiffening rib plate 16, the rear left stiffening rib plate 17 and the rear right stiffening rib plate 18 are all triangular stiffening rib plates.

[0042] The number of the front left stiffening ribs 15, the number of the front right stiffening ribs 16, the number of the rear left stiffening ribs 17 and the number of the rear right stiffening ribs 18 can be determined as required, see Figure 1-2As shown, in a specific embodiment of the present utility model, the number of the front left stiffening ribs 15, the number of the front right stiffening ribs 16, the number of the rear left stiffening ribs 17 and the number of the rear right stiffening ribs 18 are all seven.

[0043] The bare concrete truncated column assembled steel formwork system may also include any other suitable components, see Figure 1-2 As shown, in a specific embodiment of the utility model, the bare concrete truncated cone column assembly steel formwork system also includes a front lifting ear 19 and a rear lifting ear 20, and the front lifting ear 19 and the rear lifting ear 20 are both vertically arranged and are both arranged along the left and right directions. The lower part of the front lifting ear 19 is located in front of the upper part of the front arc-shaped steel formwork 1 and is connected to the upper part of the front arc-shaped steel formwork 1, and the upper part of the front lifting ear 19 exposes the upper part of the front arc-shaped steel formwork 1 upward, and the lower part of the rear lifting ear 20 is located behind the upper part of the rear arc-shaped steel formwork 2 and is connected to the upper part of the rear arc-shaped steel formwork 2, and the upper part of the rear lifting ear 20 exposes the upper part of the rear arc-shaped steel formwork 2 upward.

[0044] The bare concrete truncated column assembled steel formwork system may also include any other suitable components, see Figure 1-2 As shown, in a specific embodiment of the utility model, the bare concrete round platform column assembly steel formwork system further includes a fixed bracket 21, and the fixed bracket 21 includes a front fixed bottom rod 22, a rear fixed bottom rod 23, a left fixed rod 24, a right fixed rod 25, a front fixed rod 26, a rear fixed rod 27, a left support tube 28, a right support tube 29, a front support tube 30 and a rear support tube 31, wherein:

[0045] The front fixed bottom bar 22 and the rear fixed bottom bar 23 are both arranged along the left-right direction and spaced apart from each other front to back and are respectively located in front of the bottom of the front arc-shaped steel formwork 1 and behind the bottom of the rear arc-shaped steel formwork 2. The left fixed bar 24 and the right fixed bar 25 are both arranged along the front-back direction and spaced apart from each other left to right. The middle part of the left fixed bar 24 is located on the left side of the front left connecting plate 3 and the rear left connecting plate 5 and respectively abuts against the front left connecting plate 3 and the rear left connecting plate 5. The front end and the rear end of the left fixed bar 24 are respectively detachably fixed to the left end of the front fixed bottom bar 22 and the left end of the rear fixed bottom bar 23. The middle part of the right fixed bar 25 is located on the right side of the front right connecting plate 4 and the rear right connecting plate 6 and respectively abuts against the front right connecting plate 4 and the The rear right connecting plate 6, the front end and the rear end of the right fixed rod 25 are respectively detachably fixed to the right end of the front fixed bottom rod 22 and the right end of the rear fixed bottom rod 23, the front fixed rod 26 and the rear fixed rod 27 are both arranged along the left and right directions and spaced apart from each other front to back, the middle part of the front fixed rod 26 is located in front of the front arc-shaped steel template 1 and abuts against the front arc-shaped steel template 1, the left end and the right end of the front fixed rod 26 are respectively detachably fixed to the front end of the left fixed rod 24 and the front end of the right fixed rod 25, the middle part of the rear fixed rod 27 is located behind the rear arc-shaped steel template 2 and abuts against the rear arc-shaped steel template 2, the left end and the right end of the rear fixed rod 27 are respectively detachably fixed to the rear end of the left fixed rod 24 and the rear end of the right fixed rod 25;

[0046] The left support tube 28 and the right support tube 29 are both inclined along the left-right direction and are arranged in an eight-shape with each other along the left-right direction. The right end of the left support tube 28 is located on the left side of the front arc-shaped steel template 1 and abuts against the front arc-shaped steel template 1, and the left end of the right support tube 29 is located on the right side of the front arc-shaped steel template 1 and abuts against the front arc-shaped steel template 1. The front support tube 30 and the rear support tube 31 are both inclined along the front-to-back direction and are arranged in an eight-shape with each other along the front-to-back direction. The rear end of the front support tube 30 is located in front of the front arc-shaped steel template 1 and abuts against the front arc-shaped steel template 1, and the front end of the rear support tube 31 is located behind the rear arc-shaped steel template 2 and abuts against the rear arc-shaped steel template 2.

[0047] The front end and rear end of the left fixed rod 24 are respectively detachably fixed to the left end of the front fixed bottom rod 22 and the left end of the rear fixed bottom rod 23, the front end and rear end of the right fixed rod 25 are respectively detachably fixed to the right end of the front fixed bottom rod 22 and the right end of the rear fixed bottom rod 23, the left end and right end of the front fixed rod 26 are respectively detachably fixed to the front end of the left fixed rod 24 and the front end of the right fixed rod 25, the left end and right end of the rear fixed rod 27 are respectively detachably fixed to the rear end of the left fixed rod 24 and the rear end of the right fixed rod 25, any suitable structure can be adopted. In a specific embodiment of the utility model, the The front end of the left fixed rod 24 and the left end of the front fixed bottom rod 22, the rear end of the left fixed rod 24 and the left end of the rear fixed bottom rod 23, the front end of the right fixed rod 25 and the right end of the front fixed bottom rod 22, the rear end of the right fixed rod 25 and the right end of the rear fixed bottom rod 23, the left end of the front fixed rod 26 and the front end of the left fixed rod 24, the right end of the front fixed rod 26 and the front end of the right fixed rod 25, the left end of the rear fixed rod 27 and the rear end of the left fixed rod 24, and the right end of the rear fixed rod 27 and the rear end of the right fixed rod 25 are all detachably fixed by fasteners.

[0048] The assembly construction process of the utility model is briefly described as follows:

[0049] 1. Grind the inner arc surface of the front arc steel template 1 and the inner arc surface of the rear arc steel template 2 of the utility model, and apply a release agent;

[0050] 2. Set the front arc steel template 1 and the rear arc steel template 2 against each other front and back, and at the same time, set the front left connecting plate 3 and the rear left connecting plate 5 as well as the front right connecting plate 4 and the rear right connecting plate 6 against each other front and back, insert the left positioning pin 7 into the front left connecting plate 3 and the rear left connecting plate 5 along the front and back direction, insert the right positioning pin 9 into the front right connecting plate 4 and the rear right connecting plate 6 along the front and back direction, insert the left fastening bolt 8 into the front left connecting plate 3 and the rear left connecting plate 5 along the front and back direction and tighten the left fastening nut, insert the right fastening bolt 10 into the front right connecting plate 4 and the rear right connecting plate 6 along the front and back direction and tighten the right fastening nut to form an assembled template;

[0051] 3. Tie up the steel bars of the round platform column and construct the base of the fine stone concrete steel formwork at the bottom;

[0052] 4. Lift the assembled formwork into place through the front lifting lug 19 and the rear lifting lug 20, put it outside the round platform column binding steel bars and lean it against the fine stone concrete steel formwork base;

[0053] 5. After the hoisting is completed, the fixed bracket 21 is installed, wherein the front fixed bottom rod 22 and the rear fixed bottom rod 23 are respectively fixed to the on-site fixing parts such as scaffolding by fasteners, and the left end of the left supporting tube 28, the right end of the right supporting tube 29, the front end of the front supporting tube 30 and the rear end of the rear supporting tube 31 are respectively sleeved on the left pre-embedded anchor bar, the right pre-embedded anchor bar, the front pre-embedded anchor bar and the rear pre-embedded anchor bar on site, the right end of the left supporting tube 28 and the left end of the right supporting tube 29 both abut against (and can also be further welded to) the front arc-shaped steel formwork 1, the rear end of the front supporting tube 30 abuts against (and can also be further welded to) the front arc-shaped steel formwork 1, and the front end of the rear supporting tube 31 abuts against (and can also be further welded to) the rear arc-shaped steel formwork 2.

[0054] Therefore, the utility model adopts the front arc steel formwork and the rear arc steel formwork to splice front and back, with few joints; the front left connecting plate and the rear left connecting plate as well as the front right connecting plate and the rear right connecting plate are all positioned and fixed by positioning pins + bolts and nuts, and the joints are tight; they can be reused and can be pre-assembled and installed by overall hoisting, with high construction efficiency; the bottom of the clear water column is densely paved with fine stone concrete to prevent leakage at the column root, thereby ensuring the molding quality and achieving good clear water demoulding effect; the support pipe and the embedded anchor bar are connected by socket and spigot, which is convenient for construction and reliable fixation.

[0055] In summary, the utility model of the steel formwork system for assembling fair-faced concrete round columns has few joints, is firmly fixed, has tight joints, is easy to demould, has good fair-faced forming effect, has ingenious design, simple structure, is easy to construct, has low construction cost, and is suitable for large-scale promotion and application.

[0056] It can be seen that the purpose of the utility model has been completely and effectively achieved. The function and structural principle of the utility model have been demonstrated and explained in the embodiments. Without departing from the principles, the implementation methods can be modified arbitrarily. Therefore, the utility model includes all modified implementation methods based on the spirit and scope of the claims.

Claims

1. A steel formwork system for assembling a round platform column of plain concrete, characterized in that: It includes a front arc steel formwork, a rear arc steel formwork, a front left connecting plate, a front right connecting plate, a rear left connecting plate, a rear right connecting plate, a left positioning pin, a left fastening bolt, a left fastening nut, a right positioning pin, a right fastening bolt and a right fastening nut, wherein: The front arc steel template and the rear arc steel template are both arranged vertically and in the left-right direction, the notch of the front arc steel template is arranged backward, and the notch of the rear arc steel template is arranged forward, the notch of the front arc steel template and the notch of the rear arc steel template are arranged relative to each other front and back, the diameter of the circle where the upper arc of the front arc steel template is located is smaller than the diameter of the circle where the lower arc of the front arc steel template is located, and the diameter of the circle where the upper arc of the rear arc steel template is located is smaller than the diameter of the circle where the lower arc of the rear arc steel template is located, thereby forming a truncated cone-shaped hollow cavity between the front arc steel template and the rear arc steel template; The front left connecting plate and the front right connecting plate are both arranged vertically and are both inclined along the left and right directions and are arranged in an eight-shaped shape with each other along the left and right directions, the front left connecting plate and the front right connecting plate are respectively located on the left and right sides of the front arc-shaped steel formwork and are both connected to the front arc-shaped steel formwork, the rear left connecting plate and the rear right connecting plate are respectively arranged on the left and right sides of the rear arc-shaped steel formwork and are both connected to the rear arc-shaped steel formwork, the front left connecting plate and the rear left connecting plate are arranged against each other front and back, the left positioning pin is arranged along the front and rear direction and is inserted into the front left connecting plate and the rear left connecting plate along the front and rear direction, the left fastening bolt is arranged along the front and rear direction and is inserted into the front left connecting plate, the rear left connecting plate and the left fastening nut along the front and rear direction and threadedly engages with the left fastening nut , the number of the left fastening bolts is multiple, and the multiple left fastening bolts are arranged at intervals along the length direction of the front left connecting plate, the number of the left fastening nuts is the same as the number of the left fastening bolts, the left fastening nuts and the left fastening bolts are arranged in a one-to-one correspondence, the front right connecting plate and the rear right connecting plate are arranged against each other front and back, the right positioning pin is arranged along the front-to-back direction and inserted into the front right connecting plate and the rear right connecting plate along the front-to-back direction, the right fastening bolt is arranged along the front-to-back direction and inserted into the front right connecting plate, the rear right connecting plate and the right fastening nut along the front-to-back direction and threadedly engages with the right fastening nut, the number of the right fastening bolts is multiple, and the multiple right fastening bolts are arranged at intervals along the length direction of the front right connecting plate, the number of the right fastening nuts is the same as the number of the right fastening bolts, and the right fastening nut and the right fastening bolt are arranged in a one-to-one correspondence.

2. The steel formwork system for assembling a round platform column of bare concrete according to claim 1, characterized in that: The number of the left fastening bolts and the number of the right fastening bolts are both 14.

3. The steel formwork system for assembling a round platform column of bare concrete according to claim 1, characterized in that: The steel formwork system for assembling the fair-faced concrete truncated cone column also includes a front vertical keel, a front transverse stiffening plate, a rear vertical keel and a rear transverse stiffening plate. The front vertical keel is located in front of the front curved steel formwork and is connected to the front curved steel formwork and is arranged along the generatrix of the front curved steel formwork. The number of the front vertical keels is multiple, and the multiple front vertical keels are arranged at intervals from each other along the arc direction of the front curved steel formwork. The front transverse stiffening plate and the rear transverse stiffening plate are both curved stiffening plates and are arranged horizontally. The notch of the front transverse stiffening plate is arranged backward. The front transverse stiffening plate is located in front of the front curved steel formwork and the front vertical keel and is respectively connected to the front curved steel formwork and the front vertical keel. There are multiple stiffening plates, and the multiple front transverse stiffening plates are spaced apart from each other along the busbar of the front arc-shaped steel formwork. The rear vertical keel is located behind the rear arc-shaped steel formwork and connected to the rear arc-shaped steel formwork and is arranged along the busbar of the rear arc-shaped steel formwork. There are multiple rear vertical keels, and the multiple rear vertical keels are spaced apart from each other along the arc direction of the rear arc-shaped steel formwork. The notch of the rear transverse stiffening plate is arranged forward, and the rear transverse stiffening plate is located behind the rear arc-shaped steel formwork and the rear vertical keel and is respectively connected to the rear arc-shaped steel formwork and the rear vertical keel. There are multiple rear transverse stiffening plates, and the multiple rear transverse stiffening plates are spaced apart from each other along the busbar of the rear arc-shaped steel formwork.

4. The steel formwork system for assembling a round platform column of bare concrete as claimed in claim 3, characterized in that: The front vertical keel and the rear vertical keel are both channel steels. The front vertical keel is arranged tangent to the front arc-shaped steel template, and the notch of the front vertical keel faces the front arc-shaped steel template. The rear vertical keel is arranged tangent to the rear arc-shaped steel template, and the notch of the rear vertical keel faces the rear arc-shaped steel template.

5. The steel formwork system for assembling a round platform column of bare concrete according to claim 3, characterized in that: The number of the front vertical keels and the number of the rear vertical keels are both 4.

6. The steel formwork system for assembling a round platform column of bare concrete as claimed in claim 3, characterized in that: The number of the front transverse stiffening plates and the number of the rear transverse stiffening plates are both 8.

7. The steel formwork system for assembling a round platform column of bare concrete according to claim 1, characterized in that: The steel formwork system for assembling the plain concrete truncated column also includes a front left stiffening rib plate, a front right stiffening rib plate, a rear left stiffening rib plate and a rear right stiffening rib plate. The front left stiffening rib plate, the front right stiffening rib plate, the rear left stiffening rib plate and the rear right stiffening rib plate are all arranged horizontally. The front left stiffening rib plate is located in front of the front left connecting plate and on the left side of the front arc-shaped steel formwork and is respectively connected to the front left connecting plate and the front arc-shaped steel formwork. The front right stiffening rib plate is located in front of the front right connecting plate and on the right side of the front arc-shaped steel formwork and is respectively connected to the front right connecting plate and the front arc-shaped steel formwork. The rear left stiffening rib plate is located behind the rear left connecting plate and on the left side of the rear arc-shaped steel formwork and is respectively connected to the rear left connecting plate. Plate and the rear arc-shaped steel formwork, the rear right stiffening rib plate is located behind the rear right connecting plate and to the right of the rear arc-shaped steel formwork and respectively connects the rear right connecting plate and the rear arc-shaped steel formwork, the number of the front left stiffening rib plates, the number of the front right stiffening rib plates, the number of the rear left stiffening rib plates and the number of the rear right stiffening rib plates are all multiple, the multiple front left stiffening rib plates are spaced apart from each other along the length direction of the front left connecting plate, the multiple front right stiffening rib plates are spaced apart from each other along the length direction of the front right connecting plate, the multiple rear left stiffening rib plates are spaced apart from each other along the length direction of the rear left connecting plate, and the multiple rear right stiffening rib plates are spaced apart from each other along the length direction of the rear right connecting plate.

8. The steel formwork system for assembling a round platform column of bare concrete according to claim 7, characterized in that: The number of the front left stiffening ribs, the number of the front right stiffening ribs, the number of the rear left stiffening ribs and the number of the rear right stiffening ribs are all 7.

9. The steel formwork system for assembling a round platform column of bare concrete according to claim 1, characterized in that: The bare concrete truncated cone column assembly steel formwork system also includes a front lifting ear and a rear lifting ear, which are both vertically arranged and arranged along the left-right direction, the lower part of the front lifting ear is located in front of the upper part of the front arc-shaped steel formwork and connected to the upper part of the front arc-shaped steel formwork, the upper part of the front lifting ear exposes the upper part of the front arc-shaped steel formwork upward, the lower part of the rear lifting ear is located behind the upper part of the rear arc-shaped steel formwork and connected to the upper part of the rear arc-shaped steel formwork, and the upper part of the rear lifting ear exposes the upper part of the rear arc-shaped steel formwork upward.

10. The steel formwork system for assembling a round platform column of bare concrete according to claim 1, characterized in that: The bare concrete round platform column assembly steel formwork system also includes a fixed bracket, which includes a front fixed bottom bar, a rear fixed bottom bar, a left fixed bar, a right fixed bar, a front fixed bar, a rear fixed bar, a left support tube, a right support tube, a front support tube and a rear support tube, wherein: The front fixed bottom bar and the rear fixed bottom bar are both arranged along the left-right direction and spaced apart from each other front to back and are respectively located in front of the bottom of the front arc-shaped steel formwork and behind the bottom of the rear arc-shaped steel formwork. The left fixed bar and the right fixed bar are both arranged along the front-back direction and spaced apart from each other left to right. The middle part of the left fixed bar is located on the left side of the front left connecting plate and the rear left connecting plate and respectively abuts against the front left connecting plate and the rear left connecting plate. The front end and the rear end of the left fixed bar are respectively detachably fixed to the left end of the front fixed bottom bar and the left end of the rear fixed bottom bar. The middle part of the right fixed bar is located on the right side of the front right connecting plate and the rear right connecting plate and respectively abuts against the front right connecting plate and The rear right connecting plate, the front end and the rear end of the right fixing rod are respectively detachably fixed to the right end of the front fixing bottom rod and the right end of the rear fixing bottom rod, the front fixing rod and the rear fixing rod are both arranged along the left-right direction and spaced apart from each other front to back, the middle part of the front fixing rod is located in front of the front arc-shaped steel template and abuts against the front arc-shaped steel template, the left end and the right end of the front fixing rod are respectively detachably fixed to the front end of the left fixing rod and the front end of the right fixing rod, the middle part of the rear fixing rod is located behind the rear arc-shaped steel template and abuts against the rear arc-shaped steel template, and the left end and the right end of the rear fixing rod are respectively detachably fixed to the rear end of the left fixing rod and the rear end of the right fixing rod; The left support tube and the right support tube are both inclined along the left-right direction and are arranged in an eight-shape with each other along the left-right direction. The right end of the left support tube is located on the left side of the front arc-shaped steel template and abuts against the front arc-shaped steel template, and the left end of the right support tube is located on the right side of the front arc-shaped steel template and abuts against the front arc-shaped steel template. The front support tube and the rear support tube are both inclined along the front-back direction and are arranged in an eight-shape with each other along the front-back direction. The rear end of the front support tube is located in front of the front arc-shaped steel template and abuts against the front arc-shaped steel template, and the front end of the rear support tube is located behind the rear arc-shaped steel template and abuts against the rear arc-shaped steel template.

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