Steel arch processing device and construction method

Abstract

The present invention provides a steel arch processing device and construction method. The mold bracket is set according to the arc required by the design, and the steel bar is bent by using the first slot through the slot angle, and bent to the first slot of the next mold bracket. The above operation is repeated, and the steel bar is bent to the first slot of the last mold bracket. The steel bar is slid along the arc surface to the second slot. If it just enters the second slot, it means that the angle meets the design requirements, and the steel bar is slid into the third slot through the arc. The steel bar is welded in a triangle by using a tie rod to achieve the purpose of increasing the bearing capacity, and to a certain extent, the safety performance of the arch frame is increased, the safety performance of the water diversion tunnel support is increased, and the safety of the engineering construction is guaranteed. The use of manpower is reduced, the waste of materials caused by the different arcs of the arch frame is reduced, the production time is greatly reduced, it is suitable for mass production, and the production efficiency of the steel arch frame is effectively improved.

Description

Technical Field

[0001] The invention belongs to the technical field of steel arch frame processing, and in particular relates to a steel arch frame processing device and a construction method. Background Art

[0002] In the field of engineering, especially in the diversion tunnel of water conservancy projects, caves and tunnels are dug between mountains. The risk factor is very high during the construction process, and landslides and other safety accidents are very likely to occur. It is difficult to support, and only some objects such as wooden sticks can be used for support, and it is very easy for support to collapse. Since the tunnel needs to be used for equipment and vehicles to pass, it is very easy to be bumped and vibrated, and engineering vehicles are generally large in body, heavy in mass, and have a large action force, resulting in a large vibration amplitude, so it is very easy for objects in the upper tunnel to fall and cause damage to personnel and equipment, causing certain economic losses. At the same time, in order to meet the support fixity of the diversion tunnel and the tunnel, a steel arch frame needs to be set to support the top of the tunnel. The arch frame supported in the past sometimes causes safety accidents due to the different shapes, sizes, and curvatures of the steel arch frame. Therefore, it is urgently needed to design a device that can conveniently meet the manufacturing of standard steel arch frames. Summary of the invention

[0003] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a steel arch frame processing device and construction method to solve the problem that the current engineering construction and arch frame production is cumbersome, leading to safety accidents, affecting the project schedule and affecting the safety of project personnel and property.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A steel arch processing device comprises a mold support and three slots provided on the mold support, wherein the slots are used to place steel bars, wherein:

[0006] The openings of the three card slots are oriented in the same direction, and at most two card slots have the same height;

[0007] At least one of the three slots is provided with a corner for bending the steel bar;

[0008] Several mold supports are fixed along a set arc.

[0009] Furthermore, the set arc is the arc of excavation of the water diversion tunnel.

[0010] Furthermore, the three slots on the mold support are provided with arc-shaped surfaces between the slots for sliding transition of the steel bars, and the steel bars are slid into the slots by utilizing the arcs.

[0011] Furthermore, the corner is a right angle, and the corner is an angle in the slot close to the inner side of the curved arc.

[0012] Furthermore, it also includes a base, a plurality of mold brackets are welded on the base, and the mold brackets are perpendicular to the base, and the base is vertically fixed to the ground.

[0013] Furthermore, there are at least three mold supports, one of which is arranged at the highest point of the arc.

[0014] Furthermore, the bottom surfaces of the three slots are parallel to each other.

[0015] Furthermore, the base is a flat steel plate, which is used to fix the mold bracket, so that the mold bracket is more fixed and can bear the weight of the bracket and the steel bars.

[0016] Compared with the prior art, the present invention has at least the following beneficial technical effects:

[0017] The present invention provides a steel arch processing device, which plays the role of fixing and limiting the bent steel bars by placing a plurality of mold supports set according to design requirements on a base, so as to achieve the purpose of reducing bending failure without checking the bending degree of each steel bar, and the mold support comprises three slots, on which sliding arcs are arranged, and the steel bars to be bent are effectively limited and bent by using the sliding arcs, and the mold support is fixed according to the design requirements, thereby realizing the positioning and curvature determination of the bent steel bars, ensuring the bending accuracy and the consistency of specifications for mass production, ensuring that the size and curvature of the processed parts are the same, ensuring the utilization rate of materials, avoiding safety accidents caused by non-standard production of steel arches, saving time and labor, and being able to produce steel arches in a standardized manner, thereby greatly improving the safety of construction, reducing the loss of consumables caused by unqualified steel bar bending, greatly reducing production costs, and greatly improving work efficiency, reducing the cost of personnel use, thereby achieving the purpose of maximizing economic benefits.

[0018] Furthermore, the inner corner of the clamping groove is a right angle, which is used to clamp the steel bar, so that the steel bar can have a bearing surface and bearing force when it is bent, saving manpower and improving work efficiency.

[0019] Furthermore, the mold bracket includes three slots and four curved surfaces. The curved surfaces are used to bend the steel bars, and the steel bars can be smoothly bent and slid into the slots to form an arc that meets the design requirements. The bent steel bars are slid into the second slot using the curved surfaces, and then into the third slot. This can ensure the consistency of the bending arc of the steel bars to the greatest extent, save manual handling processes, reduce the use of labor, save time, effort, and cost.

[0020] Furthermore, tie rods are selected for welding to reinforce the steel arch frame, so that it can increase its bearing capacity, be more fixed, withstand greater pressure and greater support force, thereby better meeting the requirements of the steel arch frame for supporting the water diversion tunnel during use and reducing the occurrence of safety accidents.

[0021] A construction method for a steel arch frame processing device utilizes a designed mold bracket and arranges the mold bracket uniformly according to the design requirements of the curvature, so that the mold bracket can be arranged uniformly to meet the requirements and meet the curvature of the arch frame. This greatly reduces the time and manpower for making steel arch frames and ensures the uniformity of the processed parts. It solves the problem of inconsistent processing angles in the current processing of steel arch frames, reduces manpower for measuring each arch frame, and reduces the unqualified rate. It also greatly improves work efficiency, is suitable for mass production, greatly reduces labor costs and time costs, significantly reduces the unqualified rate, and ensures maximum benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the mold support device in the present invention.

[0023] Figure 2 It is a schematic diagram of the structure of an embodiment of the present invention.

[0024] Numbers in the figure: 1. mold bracket; 2. steel bar; 3. base; 11. outer straight surface of mold bracket; 12. inner straight surface of mold bracket; 13. first curved surface; 14. first slot; 15. second curved surface; 16. second slot; 17. third curved surface; 18. third slot; 19. fourth curved surface. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0028] See also Figure 1 and Figure 2 In one embodiment of the present invention, a steel arch processing device is provided, in which a mold bracket 1 is cut from a square steel plate and cut into a shape with three slots and four arc surfaces. The slot spacing and the height between the slots of the mold bracket 1 are designed according to the designed curvature and the required steel arch size. The openings of the three slots are oriented in the same direction, and at most two slots have the same height, and the bottom surfaces of the three slots are parallel. At least one of the three slots is provided with a corner for bending the steel bar 2. The corner is a right angle, and the corner is the corner of the slot close to the inner side of the bending curvature, which is used to clamp the steel bar 2. And according to the designed arch size, a number of mold brackets 1 are set. And the mold brackets 1 are arranged according to the required curvature of the design and welded to the base 3. In a certain embodiment, the specific construction method of the steel arch processing device is as follows:

[0029] (1) A steel bar 2 is placed in the first slot 14 of the first mold support 1, and the steel bar 2 is bent into the first slot 14 of the second mold support 1 by manpower. The steel bar 2 is further bent into the first slot 14 of the mold support 1 in sequence.

[0030] (2) After the first steel bar 2 is bent and deformed, it is slid along the second arc surface 15 into the second slot 16 to perform a fixed arc calibration.

[0031] (3) After the first steel bar 2 is slid to the second clamping groove 16 for verification, it is slid along the third arc surface 17 to the third clamping groove 18 for further verification of the fixed arc.

[0032] (4) Place the second steel bar 2 in the first slot 14 of the first mold support 1, and use manpower to bend the steel bar 2 into the first slot 14 of the second mold support 1. Continue to bend the steel bar 2 into the first slot 14 of the mold support 1 in sequence until it is bent into the first slot 14 of the last mold support 1.

[0033] (5) After the second steel bar 2 is bent and deformed, it is slid along the second curved surface 15 into the second slot 16 to perform a fixed curvature check.

[0034] (6) The third steel bar 2 is placed in the first slot 14 of the first mold support 1, and the steel bar 2 is bent into the first slot 14 of the second mold support 1 by manpower. The steel bar 2 continues to be bent into the first slot 14 of the mold support 1 in sequence until it is bent into the first slot 14 of the last mold support 1.

[0035] (7) After the three steel bars 2 are bent into an arc according to the design requirements, they need to be welded and reinforced with tie rods. The three steel bars 2 are fixed by triangular welding to increase the bearing capacity and force of the arch frame.

[0036] (8) Use the second and fourth arcs to remove the arch.

[0037] The material selection of the processing device in the present invention is as follows:

[0038] The base 3 is made of a steel plate with strong rigidity and high hardness. The specifications and materials of the steel plate are selected according to the size of the force to be borne, and the wear resistance and strength requirements must be met.

[0039] The mold bracket 1 is made of high-quality steel plate, and a plurality of mold brackets 1 are welded to the base 3 according to the arc required by the design. A method for making a steel arch mold bracket 1 in the present invention is as follows:

[0040] a. Make the base

[0041] Among the existing materials, a steel plate with good rigidity and strength, no elastic deformation, and not easy to deform when subjected to force is selected for production. According to the weight of the bearing steel arch steel bar 2, the size of the base is selected for cutting.

[0042] b. Make the mold bracket

[0043] Among the existing materials, steel plates with good rigidity and strength, no elastic deformation, and not easy to deform when subjected to force are selected for cutting and production.

[0044] c. Overall splicing

[0045] Among all the processed parts, welding technology can be used to carry out overall welding processing.

[0046] From the above, it can be seen that the present invention is convenient for material selection, convenient for assembly, easy to assemble, has low requirements for life and construction sites, has a wider range of applications, lower costs, and a simpler steel arch frame processing device, which saves time and effort and is suitable for mass production and processing.

[0047] The present invention provides a simple method for using a steel arch processing device for a water diversion tunnel, and the specific steps are as follows:

[0048] Put the steel bar 2 into the first slot 14, bend the steel bar 2 by using the right angle of the slot, the slot angle plays a supporting role, and repeat this step until it is bent into the first slot 14 of the last mold support 1. Move the steel bar 2 to the second slot 16 along the second arc surface 15. If the steel bar 2 can just fall into the second slot 16, the curvature of the steel bar 2 meets the requirements and can slide into the third slot 18 along the third arc surface 17. Put the second steel bar 2 into the first slot 14, bend the steel bar 2 by using the right angle of the slot, the slot angle plays a supporting role, and repeat this step until it is bent into the first slot 14 of the last mold support 1. Move the steel bar 2 to the second slot 16 along the second arc surface 15. Put the third steel bar 2 into the first slot 14, bend the steel bar 2 by using the right angle of the slot, the slot angle plays a supporting role, and repeat this step until it is bent into the first slot 14 of the last mold support 1. Then, the steel bar 2 is fixed by welding with tie rods, and multiple tie rods are set to play a triangular fixing role, increase the bearing capacity, and to a certain extent increase the safety performance of the arch frame, increase the safety performance of the water diversion tunnel support, and ensure the safety of the project construction.

[0049] In summary, the present invention provides a steel arch processing device, which sets the mold according to the arc required by the design, bends the steel bar 2 by using the first slot 14 through the slot angle, bends it to the first slot 14 of the next mold bracket 1, repeats the above operation, bends it to the first slot 14 of the last mold bracket 1, slides the steel bar 2 along the arc surface to the second slot 16, if it just enters the second slot 16, it means that the angle meets the design requirements, and slides the steel bar 2 into the third slot 18 through the arc. And use the tie rod to perform triangle welding on the steel bar 2 to increase the bearing capacity, and to a certain extent increase the safety performance of the steel arch, increase the safety performance of the water diversion tunnel support, and ensure the safety of the project construction. Reduce the use of manpower, reduce the waste of materials caused by the different arcs of the steel arch, greatly reduce the production time, suitable for mass production, and effectively improve the production efficiency of the steel arch.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A construction method for a steel arch processing device, characterized in that: A steel arch processing device is used, the steel arch processing device comprising a mold support (1) and three slots provided on the mold support (1), the slots being used to place steel bars (2), wherein: the openings of the three slots are oriented in the same direction, and at most two slots have the same height; at least one of the three slots is provided with a corner for bending the steel bars (2); a plurality of mold supports (1) are fixed along a set arc, the set arc being the arc of the diversion tunnel excavation, and a corner for bending the steel bars (2) is provided between the three slots on the mold support (1). The steel bar (2) has an arc-shaped surface for sliding transition, the corner is a right angle, and the corner is an angle in the slot close to the inner side of the curved arc, and also includes a base (3), a plurality of mold brackets (1) are welded to the base (3), and the mold bracket (1) is perpendicular to the base (3), the base (3) is vertically fixed to the ground, there are at least three mold brackets (1), one of which is arranged at the highest point of the arc, the bottom surfaces of the three slots are parallel to each other, and the base (3) is a flat steel plate used to fix the mold bracket (1); The construction method includes the following steps: Step 1, welding a plurality of mold supports (1) uniformly to a base (3) along a set arc, placing a first steel bar in a first slot (14) of a first mold support (1), and then bending the steel bar (2) into the first slots (14) of the remaining mold supports (1), thereby completing the bending of the first steel bar; Step 2, sliding the first steel bar after bending and deformation into the second clamping groove (16) to check the curvature; Step 3, after sliding the first steel bar into the second slot (16) for verification, the first steel bar is further slid into the third slot (18) for curvature verification; Step 4, placing the second steel bar in the first slot (14) of the first mold support (1), and then bending the second steel bar into the first slot (14) of the remaining mold supports (1) to complete the bending of the second steel bar; Step 5, sliding the second steel bar after bending and deformation into the second clamping groove (16) to check the curvature; Step 6, placing the third steel bar in the first slot (14) of the first mold support (1), and then bending the third steel bar into the first slot (14) of the remaining mold supports (1) to complete the bending of the third steel bar; Step 7: Take out the three steel bars after welding and reinforcement.

2. The construction method of a steel arch processing device according to claim 1, characterized in that: The three steel bars are welded and reinforced by tie rods.

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