Ring beam structure node steel bar binding frame device and ring beam construction method

Abstract

The present invention discloses a ring beam structure node steel bar binding frame device and a ring beam construction method. The frame device includes an upper cross frame, a middle cross frame, a lower cross frame, a middle sliding shaft and four vertical rods. The lower cross frame is horizontally arranged at the bottom of the frame device, and the four vertical rods are arranged at the four corners of the lower cross frame. The middle sliding shaft is arranged at the center of the lower cross frame; the upper cross frame is located at the upper part of the frame device, and the middle cross frame is located in the middle part of the frame device. The upper, middle and lower cross frames are respectively provided with radial scales, and the middle sliding shaft is provided with axial scales. The ring beam construction method is constructed using the ring beam structure node steel bar binding frame device. The present invention can solve the precise binding and orderly binding of ring beam steel bar cages of different sizes, which is conducive to the firm binding of complex node steel bars, so that the beam steel bars can be better inserted into the ring beam, and the force of the ring beam is more reliable and safe.

Description

Technical Field

[0001] The present invention relates to a steel bar binding frame device for a node of an annular beam structure, and also relates to a method for constructing an annular beam using the steel bar binding frame device for a node of annular beam structure. Background Art

[0002] The steel-framed large ring beam concrete node structure can make the connection nodes of complex components such as shear walls, basement side walls, reinforced concrete beams, slabs, columns, steel-framed concrete columns, etc. in the basement reliable, with the characteristics of practicality and convenience, ensuring the stability of the basement structure. It requires mixed construction of steel structure and concrete structure, cross-operation, and requires close cooperation between steel structure construction and civil construction to ensure construction quality, improve work efficiency, and shorten construction period.

[0003] However, during the construction of the ring beam structure nodes, a problem often occurs. Due to the dense steel bars in the nodes, the surface bars, bottom bars, waist bars, stirrups, shear ring bars, etc. are not firmly tied during binding, resulting in them falling apart during lifting. There will also be misalignment in the binding spacing, resulting in various steel bars failing to meet the functional requirements of subsequent structural nodes. It also causes the ring beams to have different diameters and heights, and the steel bars cannot be tied accurately. The subsequent beam steel bars in all directions cannot be inserted into place on the ring beam, affecting the force reliability of the ring beam structure nodes. Summary of the invention

[0004] The first technical problem to be solved by the present invention is to provide a reinforcement binding frame device for a ring beam structure node.

[0005] The second technical problem to be solved by the present invention is to provide a method for constructing a ring beam using the above-mentioned ring beam structure node reinforcement binding frame device.

[0006] The present invention can well solve the problem of accurate and orderly binding of steel cages of circular beam structure nodes of different sizes, which is also conducive to the firm binding of steel bars at complex nodes, so that the spacing between different steel bars can be functionally staggered as required, and the subsequent beam steel bars in all directions can be better inserted into place on the circular beam, making the force on the nodes of the circular beam structure more reliable and safe.

[0007] To solve the above-mentioned first technical problem, the technical solution adopted by the present invention is as follows:

[0008] A steel bar binding frame device for a ring beam structure node, characterized in that it comprises an upper cross frame, a middle cross frame, a lower cross frame, a middle sliding shaft and four vertical rods, the lower cross frame is horizontally arranged at the bottom of the frame device, the four vertical rods are respectively vertically arranged at the four corners of the lower cross frame, the four vertical rods are located on the same circumference, the center of the circumference coincides with the center of the lower cross frame, when in use, the steel cage of the ring beam is confined in the space surrounded by the four vertical rods, the middle sliding shaft is vertically arranged on the center of the lower cross frame; the upper cross frame is located at the upper part of the frame device, the four corners of the upper cross frame are respectively It is connected to the upper part of the four vertical rods, the center of the upper cross frame is connected to the middle sliding shaft, and the upper cross frame can be slid up and down for adjustment; the middle cross frame is located in the middle of the frame device, the four corners of the middle cross frame are respectively connected to the upper part of the four vertical rods, the center of the middle cross frame is connected to the middle sliding shaft, and the middle cross frame can be slid up and down for adjustment; the upper cross frame, the middle cross frame and the lower cross frame are respectively provided with radial scales, the radial scales are used to indicate the circumferential position of the steel bars of the steel cage, and the middle sliding shaft is provided with axial scales, the axial scales are used to indicate the height position of the steel bars of the steel cage.

[0009] Optionally, the upper cross frame, the middle cross frame and the lower cross frame are each provided with two intersecting straight rods, the four ends of the two intersecting straight rods are respectively connected to four vertical rods, and the intersection position of the two intersecting straight rods is connected to the middle sliding shaft.

[0010] Optionally, the lower cross frame is further provided with four cross bars, which are respectively arranged on four sides of the lower cross frame, and the two ends of the cross bars are respectively fixedly connected to the ends of the straight bars.

[0011] Optionally, the connection between the upper cross frame and the middle sliding axis and four vertical rods, as well as the connection between the middle cross frame and the middle sliding axis and four vertical rods, are all connected by adjusting sliding bolts to achieve up and down sliding adjustment of the upper cross frame and the middle cross frame.

[0012] Optionally, the upper cross frame, the middle cross frame, the lower cross frame, the middle sliding shaft and the four vertical rods are all connected by galvanized steel pipes.

[0013] To solve the above second technical problem, the technical solution adopted by the present invention is as follows:

[0014] A method for constructing a ring beam using the above-mentioned ring beam structure node reinforcement binding frame device is characterized by comprising the following steps:

[0015] S1, welding annular positioning steel bars on the outer wall of the steel pipe column connected to the node of the annular beam structure;

[0016] S2, processing and manufacturing various steel bar components of the steel bar cage of the annular beam;

[0017] S3, constructing the frame device;

[0018] S4, using the frame device to manufacture the steel cage of the annular beam, which includes the following steps:

[0019] S401, adjusting the heights of the upper cross frame and the middle cross frame according to the design size of the steel cage, wherein the upper cross frame will be located above the steel cage, and the middle cross frame will be located between the shear ring reinforcement and the waist reinforcement of the steel cage;

[0020] S402, placing the surface reinforcement and shear ring reinforcement of the finished steel cage between the upper cross frame and the middle cross frame, placing the waist reinforcement and bottom reinforcement of the finished steel cage between the middle cross frame and the lower cross frame, and adjusting the circumferential positions of the surface reinforcement, shear ring reinforcement, waist reinforcement and bottom reinforcement according to the design drawings and the radial scale; at this time, all the surface reinforcements and all the shear ring reinforcements are stacked together, and all the waist reinforcements and all the bottom reinforcements are stacked together;

[0021] S403, a stirrup group vertically inserted into the steel cage, the stirrup group including a plurality of stirrups of different sizes located at different circumferential positions, and the stirrups are placed according to the designed position;

[0022] S404, according to the design drawings and the axial scale, lift the surface reinforcement, shear ring reinforcement, waist reinforcement and bottom reinforcement to the set height respectively, and tie them with the stirrups;

[0023] S405, tying the hooks of the steel cage to complete the production of the steel cage;

[0024] S406, hoisting the finished steel cage out of the frame device and moving it to an external place for storage;

[0025] S5, hoist the steel cage to the designed position of the positioning steel bars on site, pour concrete, and finally complete the construction of the ring beam.

[0026] Optionally, the tying order of the stirrups of the stirrup group is from small to large, and the tying order of the surface reinforcement, shear ring reinforcement, waist reinforcement and bottom reinforcement is from large diameter to small diameter.

[0027] Optionally, in step S404, the middle cross frame and the middle sliding shaft are removed after the binding is completed.

[0028] Optionally, in step S5, before the steel pipe column is fixed, the steel cage is first put on the steel pipe column, and then the steel pipe column is welded and fixed, and then the steel cage is lifted to a set position for welding and fixing.

[0029] Optionally, the steel cage and the steel pipe column are welded via steel bars.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention sets a frame device to assist in the binding of the steel cage of the ring beam. The upper cross frame and the middle cross frame can be adjusted up and down, so that they can be applied to the construction of ring beam structure nodes of different sizes. In the process of binding the steel cage, the radial scales on the upper cross frame, the middle cross frame and the lower cross frame, and the axial scales on the middle sliding shaft can more accurately grasp the position of each steel bar component of the steel cage to complete the precise binding of the steel cage. In the process of binding the steel cage, the steel cage will be carried out in the space surrounded by four vertical bars, and it is divided into two parts, upper and lower, by the middle cross frame, so that the various steel bar components of the steel cage can be placed more orderly and can be bound more orderly. Under the above effects, it will be conducive to the firm binding of complex node steel bars, so that different steel bar spacings can be functionally dislocated as required, and the subsequent beam steel bars in all directions can be better inserted into place on the ring beam node, so that the force of the ring beam structure node is more reliable and safe.

[0032] In the annular beam construction method of the present invention, the steel cage is tied by first stacking the surface reinforcement, shear ring reinforcement, waist reinforcement and bottom reinforcement accordingly and placing them in the frame device, adjusting the position, and then inserting the stirrup group and adjusting the position. Thereafter, the surface reinforcement, shear ring reinforcement, waist reinforcement and bottom reinforcement are sequentially advanced to the set height and tied with the stirrups. The production is more orderly, and the position can be made more accurate by comparing the radial scale and the axial scale, which solves the problem of confusion caused by the existing method of making the steel cage of the annular beam because the steel cage is too complicated. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of the rack device of the present invention;

[0034] Figure 2 It is a schematic diagram of the corresponding positions of the bottom reinforcement, waist reinforcement, shear ring reinforcement, surface reinforcement and stirrup reinforcement during the use of the frame device of the present invention;

[0035] Figure 3 It is a front view schematic diagram of the case where the positioning steel bars are welded to the steel pipe column in the method for constructing the annular beam of the present invention;

[0036] Figure 4 It is a cross-sectional schematic diagram of a location of a steel bar welding point in a method for constructing a ring beam of the present invention;

[0037] Figure 5 It is a structural schematic diagram of a ring beam constructed by the ring beam construction method of the present invention;

[0038] Figure 6 yes Figure 5 Schematic diagram of the cross-section taken through AA.

[0039] Meaning of reference numerals in the figure:

[0040] 1-lower cross frame; 2-middle cross frame; 3-upper cross frame; 4-vertical rod; 5-middle sliding shaft; 6-radial scale; 7-axial scale; 8-straight rod; 9-adjusting sliding bolt; 10-cross rod; 11-first stirrup; 12-second stirrup; 13-third stirrup; 14-bottom reinforcement; 15-waist reinforcement; 16-shear ring reinforcement; 17-surface reinforcement; 18-steel pipe column; 19-positioning steel bar; 20-reinforced concrete frame beam; 21-floor slab; 22-ring beam; 23-stirrup group. DETAILED DESCRIPTION

[0041] The present invention is further described below in conjunction with embodiments.

[0042] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0044] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0045] Example:

[0046] like Figure 1 Shown is a schematic diagram of the steel bar binding frame device of the annular beam structure node of this embodiment, the frame device includes an upper cross frame 3, a middle cross frame 2, a lower cross frame 1, a middle sliding shaft 5 and four vertical rods 4.

[0047] The lower cross frame 1 is horizontally arranged at the bottom of the frame device, and four vertical rods 4 are respectively vertically arranged at the four corners of the lower cross frame 1. The four vertical rods 4 are located on the same circumference, and the center of the circumference coincides with the center of the space surrounded by the four vertical rods 4. When in use, the steel cage of the annular beam is made in the space surrounded by the four vertical rods 4. The middle sliding shaft 5 is vertically arranged at the center of the lower cross frame 1, that is, located at the center of the space surrounded by the four vertical rods 4. The connection between the four vertical rods 4 and the middle sliding shaft 5 and the lower cross frame 1 can be a detachable connection, which can be a bolt connection structure.

[0048] The upper cross frame 3 is located at the upper part of the frame device, and the four corners of the upper cross frame 3 are respectively connected to the upper parts of the four vertical rods 4, and the center of the upper cross frame 3 is connected to the middle sliding shaft 5, so that the upper cross frame 3 can slide up and down and adjust. The middle cross frame 2 is located in the middle part of the frame device, and the four corners of the middle cross frame 2 are respectively connected to the upper parts of the four vertical rods 4, and the center of the middle cross frame 2 is connected to the middle sliding shaft 5, so that the middle cross frame 2 can slide up and down and adjust. The connection between the upper cross frame 3 and the middle sliding shaft 5 and the four vertical rods 4, and the connection between the middle cross frame 2 and the middle sliding shaft 5 and the four vertical rods 4, are all connected by adjusting sliding bolts 9 to realize the upper and lower sliding adjustment of the upper cross frame 3 and the middle cross frame 2. The adjusting sliding bolts 9 are conventional sliding connection parts.

[0049] When in use, the upper cross frame 3 will be located above the steel cage, and the middle cross frame 2 will be located between the shear ring reinforcement and the waist reinforcement of the steel cage. The space in the frame device is divided into upper and lower parts by the middle cross frame 2. During the steel bar tying process, the surface reinforcement 17 and the shear ring reinforcement 16 of the steel cage are placed between the upper cross frame 3 and the middle cross frame 2, and the waist reinforcement 15 and the bottom reinforcement 14 of the steel cage are placed between the middle cross frame 2 and the lower cross frame 1, which can make the various steel bar components of the steel cage more orderly placed and can also be tied more orderly.

[0050] The upper cross frame 3, the middle cross frame 2 and the lower cross frame 1 are respectively provided with radial scales 6, which are used to mark the circumferential position of the steel bars of the steel cage, and the middle sliding shaft 5 is provided with axial scales 7, which are used to mark the height position of the steel bars of the steel cage. The radial scales 6 and the axial scales 7 can make the binding position of each steel bar component more accurate.

[0051] The upper cross frame 3, the middle cross frame 2 and the lower cross frame 1 of this embodiment are all provided with two intersecting straight rods 8, the four ends of the two intersecting straight rods 8 are respectively connected to the four vertical rods 4, and the intersection position of the two intersecting straight rods 8 is connected to the middle sliding shaft 5. The radial scale 6 is provided on one of the two intersecting straight rods.

[0052] Among them, the lower cross frame 1 is also provided with four cross bars 10, and the four cross bars 10 are respectively arranged on the four sides of the lower cross frame 1, and the two ends of the cross bars 10 are respectively fixedly connected to the ends of the straight bars. The four cross bars 10 make the structure of the lower cross frame 1 more stable.

[0053] This embodiment also discloses a specific method for constructing a ring beam, which is constructed using the above-mentioned ring beam structure node steel bar binding frame device, and includes the following steps:

[0054] S1, welding of positioning steel bars:

[0055] like Figure 3 and Figure 4 As shown, a circular positioning steel bar 19 is welded on the outer wall of the steel pipe column 18 connected to the node of the ring beam structure. In this embodiment, according to the design requirements, 6 positioning steel bars 19 are set at the elevation of the ring beam. The positioning steel bars 19 use Φ12 steel bars. When the steel cage is hoisted later, the steel bars and stirrups close to the steel cage are welded firmly. The spacing between the positioning steel bars 19 is 600mm, and the spacing between the positioning steel bars 19 and the floor slab 21 is 200mm.

[0056] S2, processing and manufacturing various steel bar components of the steel bar cage of the ring beam, including the surface bars 17, the shear ring bars 16, the waist bars 15, the bottom bars 14, the various stirrups of the stirrup group 23, the hooks, etc., and the more specific processing method is:

[0057] (1) Arc bending machine: The steel bars of the annular beam have high requirements on the processing accuracy of the arc bending machine, and the ovality of the main reinforcement of the annular beam is required to be ≤0.3%d;

[0058] (2) Steel bar cutting: There are many specifications of steel bars for ring beams, and the lengths vary. It is easy for the waste to be difficult to reuse. In order to avoid steel bar waste, the cutting size and the market fixed-length steel bar size should be combined to purchase 12m and 9m fixed-length steel bars for ring beam steel bar cutting. By optimizing the cutting, steel bar waste can be reduced.

[0059] (3) Processing and manufacturing: The main reinforcement of the annular beam (the main reinforcement includes the surface reinforcement 17 and the bottom reinforcement 14) is processed by specific workers. When the main reinforcement of the same diameter is processed in large quantities, a trial bending test is first carried out. After the ovality and diameter meet the requirements, batch processing can be carried out according to this size; 2 to 3 layers of steel bars can be processed, which reduces the number of times the bending radius of the arc bending machine is adjusted back and forth, and improves the processing accuracy of the steel bars;

[0060] S3, build the frame device, specifically:

[0061] (1) The frame device is constructed of DN50 galvanized steel pipes and is threadedly connected. It can be adjusted to a cube or a cuboid according to the design size of the annular beam and is divided into a lower layer, a middle layer, and an upper layer. The upper cross frame 3, the middle cross frame 2, and the lower cross frame 1 are all marked with radial scales 6; the schematic diagram of this embodiment Figure 1 and Figure 2 The displayed one is a square;

[0062] (2) The lower cross frame 1 is fixedly arranged, and the four vertical bars 4 are 2.5 meters long and the horizontal bar 10 is 2 meters long and fixed on the lower cross frame 1;

[0063] (3) The upper cross frame 3 and the middle cross frame 2 are connected to four vertical rods 4, and can be adjusted up and down along the middle sliding shaft 5 marked with axial scale according to the size and height of the ring beam to be produced;

[0064] (4) The upper cross frame 3 and the middle cross frame 2 are adjusted and fixed up and down by adjusting bolts. If you need to adjust up and down, loosen the adjusting bolts. When you need to fix them after they are adjusted up and down, tighten the adjusting bolts. The middle sliding shaft 5 can be disassembled and assembled as needed.

[0065] (5) According to the different sizes of ring beams on site, the frame device can be adjusted to tie ring beams of different sizes.

[0066] S4, using the frame device to manufacture the steel cage of the annular beam, which includes the following steps:

[0067] S401, according to the cross-sectional size of the annular beam 450 mm × 950 mm and the design size of the steel cage of the annular beam, the heights of the upper cross frame 3 and the middle cross frame 2 are adjusted, wherein the upper cross frame 3 will be located above the steel cage, and the middle cross frame 2 will be located between the shear ring reinforcement 16 and the waist reinforcement 15 of the steel cage;

[0068] In the subsequent lashing process, the following principles will be followed:

[0069] The order of tying the stirrups of the stirrup group 23 is from small-sized stirrups to large-sized stirrups, and the order of tying the surface reinforcement 17, shear ring reinforcement 16, waist reinforcement 15 and bottom reinforcement 14 is from large diameter to small diameter. When the above tying is completed, the hook is tied last.

[0070] Figure 2 As shown in the figure, only the approximate positions of the layers where the surface reinforcement 17, shear ring reinforcement 16, waist reinforcement 15, bottom reinforcement 14 and stirrup groups are located are indicated, and the specific numbers of the surface reinforcement 17, shear ring reinforcement 16, waist reinforcement 15 and bottom reinforcement 14 are not shown.

[0071] S402, placing the finished surface reinforcement 17 and shear ring reinforcement 16 of the steel cage between the upper cross frame 3 and the middle cross frame 2, placing the finished waist reinforcement 15 and bottom reinforcement 14 of the steel cage between the middle cross frame 2 and the lower cross frame 1, and adjusting the circumferential positions of the surface reinforcement 17, shear ring reinforcement 16, waist reinforcement 15 and bottom reinforcement 14 according to the design drawings and the radial scale; at this time, all the surface reinforcement 17 and all the shear ring reinforcement 16 are stacked together, and all the waist reinforcement 15 and all the bottom reinforcement 14 are stacked together;

[0072] In this embodiment, 5 surface bars 17 are arranged as required, and the surface bars 17 are made of φ22 grade three steel, and the spacing between each is 300mm; the stirrups are made of φ10 grade three steel, and the spacing between each stirrup is 130mm; there are 5 bottom bars 14, and the bottom bars 14 are made of φ25 grade three steel; the spacing between the waist bars 15 is 150mm, and the waist bars 15 are made of 2 φ14 grade three steel.

[0073] S403, a stirrup group vertically inserted into the steel cage, the stirrup group including a plurality of stirrups of different sizes located at different circumferential positions, and the stirrups are placed according to the designed position;

[0074] The stirrup group of this embodiment includes the first stirrup 11, the second stirrup 12 and the third stirrup 13. Multiple stirrup groups are inserted into the steel cage according to the design, and the stirrup groups are distributed in the circumferential direction. The first stirrup 11, the second stirrup 12 and the third stirrup 13 are all inserted from top to bottom, and then scaled and placed according to the spacing on the drawing.

[0075] Adjust the frame and place the outermost bottom reinforcement and waist reinforcement at the bottom of the third stirrup.

[0076] like Figure 2 As shown, in this embodiment, the sizes of the first stirrup 11, the second stirrup 12 and the third stirrup 13 are successively smaller, and they are different in width. The outer edges of the first stirrup 11, the second stirrup 12 and the third stirrup 13 are located on the outer side of the steel cage, the inner side of the first stirrup 11 is located on the inner side of the steel cage, the inner side of the second stirrup 12 is inserted downward from between the innermost surface reinforcement and the second to last surface reinforcement, the inner side of the third stirrup 13 is inserted downward from between the second to last steel ring and the third to last surface reinforcement, the third stirrup 13 is located between the first stirrup 11 and the second stirrup 12, and the inner sides of the first stirrup 11, the second stirrup 12 and the third stirrup 13 are alternately interspersed in the steel cage. Since the insertion positions of the first stirrup 11, the second stirrup 12 and the third stirrup 13 are different, the numbers of the surface reinforcement 17, the shear ring reinforcement 16, the waist reinforcement 15 and the bottom reinforcement 14 passing through the first stirrup 11, the second stirrup 12 and the third stirrup 13 are also different.

[0077] S404, according to the design drawings and the axial scale 7, lift the surface reinforcement 17, shear ring reinforcement 16, waist reinforcement 15 and bottom reinforcement 14 to the set height respectively, and tie them with the stirrups; specifically:

[0078] According to the design requirements of the drawings, lift the outermost waist reinforcement 15 of the first layer to the set position and tie it firmly with the third stirrup 13. Lift the outermost waist reinforcement 15 of the second layer (third layer...) to the set position and tie it firmly with the third stirrup. Tie the outermost bottom reinforcement 14 to the third stirrup 13 firmly. Lift the outermost surface reinforcement 17 to the set position and tie it firmly with the third stirrup 13. Lift the outermost shear ring reinforcement 16 to the set position and tie it firmly with the third stirrup 13. To the set position, and tied firmly with the third stirrup 13; then complete the binding of the outermost waist reinforcement 15, bottom reinforcement 14, surface reinforcement 17 and shear ring reinforcement 16 with the second stirrup 12, and then complete the binding of the outermost waist reinforcement 15, bottom reinforcement 14, surface reinforcement 17 and shear ring reinforcement 16 with the first stirrup 11; after completing the outermost binding, tie the inner steel bars inward in turn. The outermost steel bar has the largest diameter, and the diameter becomes smaller as it goes inward. The binding is based on the binding order of the outermost steel bars.

[0079] Afterwards, the middle cross frame 2 and the middle sliding shaft 5 are removed;

[0080] S405, tying the hooks of the steel cage, making local adjustments to the steel cage, and completing the production of the steel cage;

[0081] S406, hoisting the finished steel cage out of the frame device and moving it to an external place for storage;

[0082] Specifically: the steel cage of the finished ring beam is lifted out by a tower crane or a crane and stored at a designated location. In order to save space, two formed steel cages can be stacked together, but not more than two, to avoid the bottom steel cage being pressed and deformed.

[0083] A fourth stirrup will also be provided for the steel cage. The fourth stirrup will be installed simultaneously with the frame beam after the rear hoisting. The fourth stirrup will be cross-tied on the outside of the steel cage.

[0084] S5, hoist the steel cage to the designed position of the positioning steel bars on site, pour concrete, and finally complete the construction of the ring beam. The specific plan for this step is:

[0085] 1. Lifting and fixing of steel cage

[0086] (1) After the bottom formwork of the ring beam 22 is set up on site, the steel cage can be hoisted. Four steel wire ropes should be symmetrically passed through the two sides of the steel cage and buckled onto the surface bars to ensure the stability of the steel cage during hoisting. When hoisting the steel cage, care should be taken not to touch other objects to avoid deformation of the steel cage. The steel cage should be installed by specific workers to avoid shaking of the steel cage. The tower crane signalman should be nearby to direct the tower crane in time to ensure the smooth installation of the steel cage.

[0087] (3) Construction steps: Before installing the steel pipe column 18, put the formed steel cage on the steel pipe column 18 extending out of the plate surface, hoist the bifurcated steel pipe column, weld the steel pipe column 18, and after welding, lift the steel cage and weld the steel cage to the steel pipe column 18 with a steel bar to prevent the steel cage 18 from falling. After that, install the steel cage template, fix the steel plate with steel bars, and put the steel cage in place. The construction process requires the use of a tower crane.

[0088] The finished product needs to be hoisted onto the steel pipe column 18 after passing the inspection. The bottom reinforcement 14 and the surface reinforcement 17 are placed on the positioning reinforcement for installation. Overlap welding is used, and the joint position avoids the intersecting beam mouth.

[0089] After the steel cage of the annular beam 22 is installed, it is easy to cause deformation of the steel cage when tying the frame beam, resulting in eccentricity of the steel cage. Using steel bars to weld and fix the steel cage to the steel pipe column can effectively solve the problem of steel cage deformation and play a role in fixing the steel cage.

[0090] 2. On-site acceptance

[0091] The steel cage of the annular beam 22 is a separate component. After being tied and formed, the owner and the supervision unit can be organized to inspect and accept it in advance, which reduces the inspection and acceptance procedures during the later construction. The main contents of the inspection and acceptance include: steel bar model, quantity and spacing, inner and outer diameter dimensions of the steel cage of the annular beam, welds, etc.

[0092] 3. Single-piece template assembly

[0093] (1) Assemble the single-piece formwork to reinforce and prevent leakage.

[0094] (2) Position the first template in place, then the second template in place, connect and fix them, and then install the third and fourth templates in succession.

[0095] (3) Check the diagonal and displacement of the column formwork and correct them, install the column hoops from bottom to top and make diagonal braces, check the installation quality, and ensure the safety of construction.

[0096] (4) The vertical joints between the plates are processed into tongue-and-groove joints, and then the columns are fixed with column hoops and support systems. Note that a cleaning opening must be reserved at the bottom of each column template, and the size of the cleaning opening should be 100mm×100mm.

[0097] 4. Pouring of ring beam concrete

[0098] (1) When using a vibrating rod, the concrete should be vibrated fully and densely to prevent missed vibration, under-vibration or over-vibration, and to ensure that the concrete does not have honeycombs, rough surfaces, slag inclusions, etc.

[0099] (2) During the concrete pouring process, there must be conservative supervision to ensure that the cross-sectional dimensions of the concrete components are correct after pouring, and the flatness and verticality deviations are within ±4mm.

[0100] (3) When pouring concrete, avoid misalignment and avoid the formation of jagged corners at the inner corners of walls, columns, beams and slabs. The time for demolding must be controlled in accordance with regulations, and the demolding must avoid causing concrete to be chipped or cornered.

[0101] (4) After concrete pouring, it should be covered and watered within 12 hours, and the watering time should be no less than 7 days.

[0102] (5) Column formwork

[0103] like Figure 5 and Figure 6 The finally completed concrete ring beam 22 is shown, and the ring beam 22 connects the reinforced concrete frame beam 20 and the concrete steel pipe column. The beam reinforcement of the reinforced concrete frame beam 20 is inserted before the concrete is poured.

[0104] The frame columns of this project use plywood, wooden formwork, wooden squares, φ8 round steel + φ14 high-strength tension screws, hard plastic sleeves, and butterfly nuts to form the column formwork system.

[0105] The cylindrical formwork is made of 15mm thick wooden formwork, with plywood pasted inside, 40mm×90mm wooden squares for vertical ribs, and the horizontal spacing is set to ≤200mm. The column hoops are connected by φ8 round steel and φ14 high-strength screws. The first one is 230mm from the ground, and the spacing from the top to the top of the column is 460mm. The floor is filled with 20mm thick mortar or the formwork strips are nailed with cement nails.

[0106] The ring beam structure node steel bar binding frame device and the ring beam construction method of the present invention can well solve the problem of accurate binding of steel bars at ring beam structure node of different sizes, and the steel bars at complex nodes are firmly bound, and the spacing between different steel bars can be functionally staggered as required. The subsequent beam steel bars in all directions are inserted into place at the ring beam node, so that the force on the ring beam node is reliable and safe.

[0107] Economic benefits: Compared with conventional construction methods, the application of the ring beam structure node steel bar binding frame device and the ring beam construction method of the present invention can save more construction time, management fees, labor costs, material costs, and machinery costs for the project, and can increase profits, taxes, and total expenditure for the company.

[0108] The above embodiments of the present invention are not intended to limit the protection scope of the present invention, and the implementation modes of the present invention are not limited thereto. All other modifications, replacements or changes made to the above structures of the present invention based on the above contents of the present invention, in accordance with common technical knowledge and customary means in the art, without departing from the above basic technical ideas of the present invention, should fall within the protection scope of the present invention.

Claims

1. A steel bar binding frame device for a ring beam structure node, Features: The frame comprises an upper cross frame, a middle cross frame, a lower cross frame, a middle sliding shaft and four vertical rods, wherein the lower cross frame is horizontally arranged at the bottom of the frame device, and the four vertical rods are respectively vertically arranged at the four corners of the lower cross frame, and the four vertical rods are located on the same circumference, and the center of the circumference coincides with the center of the lower cross frame. When in use, the steel cage of the annular beam is confined to the space surrounded by the four vertical rods, and the middle sliding shaft is vertically arranged on the center of the lower cross frame; the upper cross frame is located at the upper part of the frame device, and the four corners of the upper cross frame are respectively connected to the upper parts of the four vertical rods. The center of the upper cross frame is connected to the middle sliding shaft, and the upper cross frame can be slid up and down for adjustment; the middle cross frame is located in the middle of the frame device, and the four corners of the middle cross frame are respectively connected to the upper parts of the four vertical rods, and the center of the middle cross frame is connected to the middle sliding shaft, and the middle cross frame can be slid up and down for adjustment; radial scales are respectively provided on the upper cross frame, the middle cross frame and the lower cross frame, and the radial scales are used to indicate the circumferential positions of the steel bars of the steel cage, and the middle sliding shaft is provided with axial scales, and the axial scales are used to indicate the height positions of the steel bars of the steel cage; The upper cross frame, the middle cross frame and the lower cross frame are each provided with two intersecting straight rods, the four ends of the two intersecting straight rods are respectively connected to the four vertical rods, and the intersection of the two intersecting straight rods is connected to the middle sliding shaft; The connection between the upper cross frame and the middle sliding shaft and four vertical rods, as well as the connection between the middle cross frame and the middle sliding shaft and four vertical rods, are all connected by adjusting sliding bolts to achieve the up and down sliding adjustment of the upper cross frame and the middle cross frame.

2. The ring beam structure node reinforcement binding frame device according to claim 1, Features: The lower cross frame is also provided with four cross bars, which are respectively arranged on four sides of the lower cross frame, and the two ends of the cross bars are respectively fixedly connected to the ends of the straight bars.

3. The ring beam structure node reinforcement binding frame device according to claim 1, Features: The upper cross frame, the middle cross frame, the lower cross frame, the middle sliding shaft and the four vertical rods are all connected by galvanized steel pipes.

4. A method for constructing a ring beam using the ring beam structure node reinforcement binding frame device according to any one of claims 1 to 3, It is characterized in that The following steps are involved: S1, welding annular positioning steel bars on the outer wall of the steel pipe column connected to the node of the annular beam structure; S2, processing and manufacturing each steel bar component of the steel bar cage of the annular beam; S3, constructing the frame device; S4, using the frame device to manufacture the steel cage of the annular beam, which includes the following steps: S401, adjusting the heights of the upper cross frame and the middle cross frame according to the design size of the steel cage, wherein the upper cross frame will be located above the steel cage, and the middle cross frame will be located between the shear ring reinforcement and the waist reinforcement of the steel cage; S402, placing the finished surface reinforcement and shear ring reinforcement of the steel cage between the upper cross frame and the middle cross frame, placing the finished waist reinforcement and bottom reinforcement of the steel cage between the middle cross frame and the lower cross frame, and adjusting the circumferential positions of the surface reinforcement, shear ring reinforcement, waist reinforcement and bottom reinforcement according to the design drawing and the radial scale; at this time, all surface reinforcements and all shear ring reinforcements are stacked together, and all waist reinforcements and all bottom reinforcements are stacked together; S403, vertically inserting a stirrup group into the steel cage, wherein the stirrup group includes a plurality of stirrups of different sizes located at different circumferential positions, and the stirrups are placed according to the designed positions; S404, according to the design drawing and the axial scale, the surface reinforcement, shear ring reinforcement, waist reinforcement and bottom reinforcement are respectively lifted to a set height, and tied with the stirrups; S405, tying the hooks of the steel cage to complete the manufacture of the steel cage; S406, lifting the finished steel cage out of the frame device and moving it to an external place for storage; S5, hoisting the steel cage to the designed position of the positioning steel bars on site, pouring concrete, and finally completing the construction of the annular beam.

5. The method for constructing a ring beam according to claim 4, Features: The tying order of the stirrups of the stirrup group is from small to large, and the tying order of the surface reinforcement, shear ring reinforcement, waist reinforcement and bottom reinforcement is from large diameter to small diameter.

6. The method for constructing a ring beam according to claim 4, Features: In step S404, after the binding is completed, the middle cross frame and the middle sliding shaft are removed.

7. The method for constructing a ring beam according to claim 4, Features: In step S5, before the steel pipe column is fixed, the steel cage is firstly put on the steel pipe column, and then the steel pipe column is fixed by welding, and then the steel cage is lifted to a set position for welding and fixing.

8. The method for constructing a ring beam according to claim 7, Features: The steel cage and the steel pipe column are also welded via steel bars.

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