Arch camber control device and method for box girder with camber

Abstract

The invention provides an arching control device and method for a box girder with camber, and belongs to the technical field of steel structure construction. The device comprises a plurality of single-piece camber control mechanisms which are arranged along the length of a box girder component; the single camber control mechanism comprises an adjustable profile steel platform and a box girder camber control mechanism; the adjustable profile steel platform comprises a support and a working platform plate; the box girder camber control mechanism comprises camber positioning mechanisms arranged at the two ends of the working platform plate. The camber positioning mechanism comprises a pressure-bearing guide rail arranged on the top face of the support, a guide rail sliding block arranged on the pressure-bearing guide rail in a sliding mode, a baffle fixedly arranged on the top of the guide rail sliding block and a length-controllable rod piece with the extending end connected with the outer side of the baffle. And a camber control space is formed between the working platform plate and the two baffles. The problems that in the prior art, the efficiency is low and camber size precision control is difficult to guarantee due to the fact that a positioning measurement mode that manual scribing is conducted through a rack which is simply constructed manually is adopted can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure construction, and more specifically, to an arch control device and method for a box girder with an arch. Background Art

[0002] As the steel structure forms in steel structure buildings become more complex and diversified, there are a large number of steel structure forms that require arching in the steel structure market, such as the box-type gantry form. Because the overall length of the component is relatively long, in order to avoid the deflection of the component due to its own weight during the design stage, the component is generally arched to offset the deflection due to its own weight. Therefore, the component form becomes a box-type steel structure with arch. And the size of the arch is not fixed.

[0003] At present, the production of arched box girders is still mostly done by workshop workers relying on a simple built stand to manually mark and position the girders. This production method is not only inefficient, but also difficult to ensure the precision control of the camber size. Therefore, it is urgent to develop a device that is convenient for controlling the camber size during the welding of arched box girders, which is used to control the positioning of the camber size during the production of arched box girders. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to provide a device and method for controlling the arching of a box girder with an arch, so as to solve the problem in the prior art that when the arched box girder is assembled and welded, the positioning measurement method relying on a simple artificially constructed stand for manual marking is not only inefficient but also difficult to ensure the precise control of the arch size.

[0005] The camber control device of the box beam with camber provided by the present invention comprises a plurality of single-piece camber control mechanisms arranged along the length of the box beam component; the single-piece camber control mechanism comprises an adjustable steel platform and a box beam camber control mechanism; wherein,

[0006] The adjustable steel platform includes a support and a working platform plate arranged in the middle of the top surface of the support along the length direction of the support;

[0007] The box beam camber control mechanism comprises a camber positioning mechanism arranged at both ends of the working platform plate; the camber positioning mechanism comprises a pressure-bearing guide rail arranged on the top surface of the support, a guide rail slider slidably arranged on the pressure-bearing guide rail, a baffle fixed on the top of the guide rail slider and a length-controllable rod member whose extended end is connected to the outer side of the baffle plate; the power end of the length-controllable rod member is fixed to the outer end of the pressure-bearing guide rail;

[0008] A camber control space is formed between the working platform plate and the two baffles.

[0009] In addition, a preferred structure is that the working platform plate is fixed to the top surface of the support by a first bolt.

[0010] In addition, a preferred structure is that the number of the working platform boards is at least one; when the number of the working platform boards is two or more, the working platform boards are arranged side by side along the length direction of the support, and the top surfaces of all the working platform boards are on the same plane.

[0011] In addition, a preferred structure is that the support is a steel support; and / or the length-controllable rod is a hydraulic cylinder.

[0012] In addition, a preferred structure is that a bracket is fixedly provided at the outer end of the pressure-bearing guide rail; a connecting hole is provided on the bracket; and the length-controllable rod is connected to the connecting hole via a pin.

[0013] In addition, a preferred structure is that the bottom of the bracket is fixed to the outer end of the pressure-bearing guide rail by a second bolt.

[0014] In addition, a preferred structure is that a base is fixed on the top of the guide rail slider; the baffle is fixed on the top of the base; a slide groove is provided at the bottom of the guide rail slider; and the guide rail slider is slidably set on the pressure-bearing guide rail through the slide groove.

[0015] In addition, a preferred structure is that the base is fixed to the top of the guide rail slider by a third bolt.

[0016] In addition, a preferred structure is that the baffle is welded to the top of the base.

[0017] The method for controlling the arching of a box beam with arch provided by the present invention uses the arching control device as described above to control the arching of a box beam component with arch, and comprises the following steps:

[0018] According to the length and the camber of the box beam component, a plurality of the single-piece camber control mechanisms are arranged along the length of the box beam component, so that the working platform plates of all the single-piece camber control mechanisms form an integral working platform surface;

[0019] The box beam component is placed horizontally on the working platform surface, and based on the arch on the box beam component corresponding to each single-piece arch control mechanism, the length of the length-controllable rods at both ends of the working platform plate is adjusted to drive the baffle plate to move on the pressure-bearing guide rail through the guide rail slider until the distance between the two baffle plates on the single-piece arch control mechanism matches the arch size of the box beam component at this position, thereby completing the arch control of the box beam component.

[0020] It can be seen from the above technical scheme that the arch control device and method for the box girder with arch provided by the present invention arranges a reasonable number of single-piece arch control mechanisms along the length of the box girder component according to the overall length dimension of the box girder component and the arch dimension of the box girder component, and based on the arch requirement at each position of the box girder component, utilizes the mutual cooperation of the adjustable steel platform and the box girder arch control mechanism, so that it can accurately locate the arch dimension in the arched box girder component without the aid of other measuring tools; by adjusting the length of the length-controllable rod, the guide rail slider drives the baffle to slide repeatedly on the pressure-bearing guide rail to adjust the size of the arch control space to match the arch dimension on the drawing, so as to assemble the arched box girder with high control accuracy and high efficiency; the present invention has the advantages of simple structure, high control accuracy, high efficiency, ability to bear heavy steel components and ability to work in harsh environments.

[0021] In order to achieve the above and related purposes, one or more aspects of the present invention include the features that will be described in detail later. The following description and the accompanying drawings describe some exemplary aspects of the present invention in detail. However, these aspects indicate only some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to include all these aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By referring to the following description in conjunction with the accompanying drawings, and with a more complete understanding of the present invention, other objects and results of the present invention will become more apparent and easily understood.

[0023] Figure 1 It is a schematic diagram of the composition of the camber control device of the box girder with camber according to an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the three-dimensional structure of a single-chip camber control mechanism according to an embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the side structure of a single-chip camber control mechanism according to an embodiment of the present invention;

[0026] Figure 4 is a working state diagram of a camber control device for a box girder with camber according to an embodiment of the present invention;

[0027] Figure 5 The present invention is a flow chart of a method for controlling the camber of a box girder with camber according to an embodiment of the present invention.

[0028] In the accompanying drawings, 1-single-piece camber control mechanism, 11-support, 12-working platform plate, 13-pressure guide rail, 14-guide rail slider, 15-baffle, 16-length controllable rod, 17-camber control space, 18-base, 21-first bolt, 22-second bolt, 23-third bolt, 3-bracket, 4-pin shaft, 5-box beam component.

[0029] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0030] In response to the above-mentioned problem that in the prior art, when welding a box girder with an arch, the positioning and measurement method that relies on a simple artificially constructed gantry for manual marking is not only inefficient, but also difficult to ensure the precise control of the arch size, a device and method for controlling the arch of a box girder with an arch is proposed.

[0031] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] In order to illustrate the camber control device and method of the box girder with camber provided by the present invention, Figure 1 The composition structure of the camber control device of the box beam with camber according to the embodiment of the present invention is shown; Figure 2 The three-dimensional structure of the monolithic camber control mechanism according to an embodiment of the present invention is shown; Figure 3 The side structure of the monolithic crown control mechanism according to an embodiment of the present invention is shown; Figure 4 The working state of the camber control device of the box girder with camber according to the embodiment of the present invention is shown; Figure 5 The flowchart of the camber control method of a box girder with camber according to an embodiment of the present invention is shown.

[0033] like Figures 1 to 4 As shown together, the arch control device of the box girder with arch provided by the present invention includes a plurality of single-piece arch control mechanisms 1 arranged along the length of the box girder component 5; the single-piece arch control mechanism 1 includes an adjustable steel platform and a box girder arch control mechanism; wherein the adjustable steel platform includes a support 11 and a working platform plate 12 arranged in the middle of the top surface of the support 11 along the length direction of the support 11; the box girder arch control mechanism includes an arch positioning mechanism arranged at both ends of the working platform plate 12; the arch positioning mechanism includes a pressure-bearing guide rail 13 arranged on the top surface of the support 11, a guide rail slider 14 slidingly arranged on the pressure-bearing guide rail 13, a baffle 15 fixedly arranged on the top of the guide rail slider 14 and a length-controllable rod 16 whose protruding end is connected to the outer side of the baffle 15; the power end of the length-controllable rod 16 is fixed to the outer end of the pressure-bearing guide rail 13; and a arch control space 17 is formed between the working platform plate 12 and the two baffles 15.

[0034] It should be noted that the "inside" and "outside" in the present invention are based on the middle of the top surface of the support 11, that is, the part close to the middle is the inside, and the part close to the two ends of the support is the outside; the "first", "second" and "third" in the present invention are used to distinguish the positions of the components and do not involve special meanings.

[0035] The device provided by the present invention is used to control the camber of the box beam component 5 in the side-lying state, and is suitable for box beams that can be assembled sideways. The conventional vertical cambering control method is changed to horizontal plane cambering, which greatly improves the welding efficiency and camber control accuracy.

[0036] like Figure 4 As shown, when the arch control device of the box girder with arch provided by the present invention is in use, the positioning points of the single-piece arch control mechanisms 1 located at both ends of the box girder component 5 on the box girder component 5 are used as reference points, and the arch control space 17 of the single-piece arch control mechanisms 1 located at each intermediate position is adjusted to position and control the arch at each position. The number of single-piece arch control mechanisms 1 located between the two reference points needs to be determined according to the length dimension and the arch dimension of the actual box girder component 5. Therefore, the present invention does not specifically limit the number of single-piece arch control mechanisms 1.

[0037] By arranging a reasonable number of single-piece arch control mechanisms 1 along the length of the box beam component 5 according to the overall length dimension of the box beam component 5 and the arch dimension of the box beam component 5, based on the arch requirement at each position of the box beam component 5, the adjustable steel platform and the box beam arch control mechanism cooperate with each other, so that the arch dimension of the arched box beam component 5 can be accurately located without the aid of other measuring tools; by adjusting the length of the length-controllable rod 16, the guide rail slider 14 drives the baffle 15 to slide repeatedly on the pressure-bearing guide rail 13 to adjust the size of the arch control space 17 to match the arch dimension on the drawing, so as to assemble the arched box beam component 5 with high control accuracy and high efficiency; the present invention has the advantages of simple structure, high control accuracy, high efficiency, ability to bear heavy steel components and ability to work in harsh environments.

[0038] As a preferred solution of the present invention, the working platform plate 12 is fixed to the top surface of the support 11 by means of a first bolt 21 .

[0039] It should be noted that the work platform plate 12 is detachably fixed to the top surface of the support 11 by bolts, so that the work platform plate 12 can adjust the size of the work surface according to actual needs. Of course, other fixed connection methods can also be used to replace it, such as gluing, etc., and the present invention does not make any special limitations on this.

[0040] As a preferred solution of the present invention, the number of the working platform boards 12 is at least one; when the number of the working platform boards 12 is two or more, the working platform boards 12 are arranged side by side along the length direction of the support 11, and the top surfaces of the working platform boards 12 are on the same plane.

[0041] It should be noted that the number of working platform plates 12 is determined according to the area of ​​each working platform plate, the side area of ​​the steel beam member 5, and the camber, etc. The present invention does not make any special limitation on this, but it is necessary to ensure the flatness of the overall working platform to prevent distortion.

[0042] As a preferred solution of the present invention, the support 11 is a steel support.

[0043] Specifically, the support 11 is preferably, but not limited to, a steel support and may also be other types of supports, such as a support made of an iron plate, etc., which is not particularly limited in the present invention.

[0044] As a preferred solution of the present invention, a bracket 3 is fixedly provided at the outer end of the pressure-bearing guide rail 13 ; a connecting hole is provided on the bracket 3 ; and a length-controllable rod 16 is connected to the connecting hole through a pin 4 .

[0045] Specifically, the bottom of the bracket 3 is fixed to the outer end of the pressure-bearing guide rail 13, and the upper part of the bracket 3 is two relatively arranged fixed ears. The power end of the length-controllable rod 16 (different from the other end of the telescopic end) is connected to the connecting hole of the fixed ear through the pin 4, that is, the two ends of the pin 4 are respectively connected to the connecting holes of the two fixed ears. The length-controllable rod 16 is horizontally arranged, and the telescopic length of the telescopic end is controlled to control the guide rail slider 14 to drive the baffle 15 to slide repeatedly on the pressure-bearing guide rail 13, and is positioned on the pressure-bearing guide rail 13 according to the arch requirement.

[0046] As a preferred solution of the present invention, the bottom of the bracket 3 is fixed to the outer end of the pressure-bearing guide rail 13 by a second bolt 22 .

[0047] It should be noted that the bottom of the bracket 3 is preferably, but not limited to, fixed to the pressure-bearing guide rail 13 by bolts. Bolt fixing facilitates the disassembly, assembly and replacement of the bracket 3. Of course, it can also be fixed by other means, and the present invention does not make any special limitation on this.

[0048] As a preferred solution of the present invention, a base 18 is fixed on the top of the guide rail slider 14; the baffle 15 is fixed on the top of the base 18; a slide groove is set at the bottom of the guide rail slider 14; the guide rail slider 14 is slidably set on the pressure guide rail 13 through the slide groove.

[0049] Specifically, the bottom of the guide rail slider 14 is slidably connected to the pressure-bearing guide rail 13 through a sliding groove matching the pressure-bearing guide rail 13 , and the baffle 15 is conveniently fixed through the base 18 .

[0050] As a preferred solution of the present invention, the base 18 is fixed to the top of the guide rail slider 14 by a third bolt 23 .

[0051] It should be noted that the base 18 is preferably, but not limited to, fixed to the top of the guide rail slider 14 by bolts. Bolt fixing facilitates assembly and replacement of the base 18. Of course, it can also be fixed by other means, which is not particularly limited in the present invention.

[0052] As a preferred solution of the present invention, the baffle 15 is welded to the top of the base 18 .

[0053] Specifically, the baffle 15 is preferably, but not limited to, fixed to the top of the base 18 by welding, and the two may also be fixed by bonding, integral molding, or the like.

[0054] As a preferred solution of the present invention, the length-controllable rod 16 is a hydraulic cylinder.

[0055] It should be noted that the length-controllable rod 16 is preferably, but not limited to, a hydraulic cylinder, and may also be an electric rod, a hydraulic rod, a pneumatic rod, etc.

[0056] The assembly process of the camber control device of the box beam with camber provided by the present invention is as follows:

[0057] After the various components of the adjustable steel platform are connected and assembled, the width of the entire working platform can be adjusted by changing the number of working platform plates 12 or replacing working platform plates 12 of different widths through bolts, so that it can be suitable for box beam components 5 of different cross-sectional types.

[0058] After the components of the box beam camber control mechanism are connected and assembled to each other, the hydraulic cylinder is fixed to the end of the pressure-bearing guide rail 13 by bolts. The thrust generated by the hydraulic cylinder can make the whole formed by the base 18, the baffle 15, and the guide rail slider 14 move linearly along the pressure-bearing guide rail 13.

[0059] like Figure 5 As shown, the arching control method of the box beam with arch provided by the present invention uses the arching control device as described above to control the arching of the box beam component with arch, which includes the following steps:

[0060] Step S1, according to the length and the camber of the box beam member 5, a plurality of single-piece camber control mechanisms 1 are arranged along the length of the box beam member 5, so that the working platform plates 12 of all the single-piece camber control mechanisms 1 form an integral working platform surface;

[0061] Step S2, place the box beam component 5 horizontally on the working platform surface, and adjust the length of the length-controllable rods 16 at both ends of the working platform plate 12 based on the arch on the box beam component 5 corresponding to each single-piece arch control mechanism 1, so as to drive the baffle plate 15 to move on the pressure-bearing guide rail 13 through the guide rail slider 14, until the distance between the two baffle plates 15 on the single-piece arch control mechanism 1 matches the arch size of the box beam component 5 at this position, thereby completing the arch control of the box beam component.

[0062] Specifically, firstly, according to the overall length dimension of the steel beam component 5 and the camber dimension control method, arrange a reasonable number of single-piece camber control mechanisms 1 and the distance between adjacent single-piece camber control mechanisms 1. At this time, it is necessary to ensure the flatness of the overall platform plate to ensure the flatness of the box beam web and prevent distortion. Then, according to the width dimension of the box beam component 5, arrange a suitable number of zero working platform plates 12 on the working platform to ensure that the box beam component 5 can be firmly placed on the working platform plate 12. Finally, according to the camber dimension of the box beam component 5, by adjusting the working length of the length-controllable rod 16, ensure that the dimensions of the two baffles 15 match the camber dimensions on the drawing. Finally, when the size of the mechanism baffle 15 is adjusted to, as shown in FIG. Figure 4 The shape shown can be used to assemble the arch box girder.

[0063] It can be seen from the above specific embodiments that the arch control device and method for the box girder with arch provided by the present invention arranges a reasonable number of single-piece arch control mechanisms along the length of the box girder member according to the overall length of the box girder member and the arch size of the box girder member, and based on the arch requirement at each position of the box girder member, utilizes the mutual cooperation of the adjustable steel platform and the box girder arch control mechanism, so that the arch size in the arched box girder member can be accurately located without the aid of other measuring tools; by adjusting the length of the length-controllable rod, the guide rail slider drives the baffle to slide repeatedly on the pressure-bearing guide rail to adjust the size of the arch control space to match the arch size on the drawing, so as to assemble the arched box girder with high control accuracy and high efficiency; the present invention has the advantages of simple structure, high control accuracy, high efficiency, ability to bear heavy steel members, and ability to work in harsh environments.

[0064] As described above, the camber control device and method of the box girder with camber proposed by the present invention are described by way of example with reference to the accompanying drawings. However, those skilled in the art should understand that various improvements can be made to the camber control device and method of the box girder with camber proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A camber control device for a box girder with camber, characterized in that: It includes a plurality of monolithic camber control mechanisms arranged along the length of the box beam component; the monolithic camber control mechanism includes an adjustable steel platform and a box beam camber control mechanism; wherein, The adjustable steel platform includes a support and a working platform plate arranged in the middle of the top surface of the support along the length direction of the support; The box beam camber control mechanism comprises a camber positioning mechanism arranged at both ends of the working platform plate; the camber positioning mechanism comprises a pressure-bearing guide rail arranged on the top surface of the support, a guide rail slider slidably arranged on the pressure-bearing guide rail, a baffle fixed on the top of the guide rail slider and a length-controllable rod member whose extended end is connected to the outer side of the baffle plate; the power end of the length-controllable rod member is fixed to the outer end of the pressure-bearing guide rail; A camber control space is formed between the working platform plate and the two baffles.

2. The camber control device for a box girder with camber according to claim 1, characterized in that: The working platform plate is fixed to the top surface of the support by means of first bolts.

3. The camber control device for a box girder with camber according to claim 1, characterized in that: The number of the working platform plate is at least one; When the number of the working platform boards is more than two, the working platform boards are arranged in parallel along the length direction of the support, and the top surfaces of all the working platform boards are on the same plane.

4. The camber control device for a box beam with camber according to claim 1, characterized in that: The support is a steel support; and / or, The length-controllable rod is a hydraulic cylinder.

5. The camber control device for a box beam with camber according to claim 1, characterized in that: A bracket is fixedly provided at the outer end of the pressure-bearing guide rail; A connecting hole is provided on the bracket; The length-controllable rod is connected to the connecting hole via a pin.

6. The camber control device for a box beam with camber according to claim 5, characterized in that: The bottom of the bracket is fixed to the outer end of the pressure-bearing guide rail by a second bolt.

7. The camber control device for a box beam with camber according to claim 1, characterized in that: A base is fixedly provided on the top of the guide rail slider; The baffle is fixed on the top of the base; A slide groove is provided at the bottom of the guide rail slider; The guide rail slider is slidably arranged on the pressure-bearing guide rail through the sliding groove.

8. The camber control device for a cambered box beam according to claim 7, characterized in that: The base is fixed to the top of the guide rail slider by a third bolt.

9. The camber control device for a cambered box beam according to claim 7, characterized in that: The baffle is welded to the top of the base.

10. A method for controlling the camber of a box girder with camber, characterized in that: The arch control device according to any one of claims 1 to 9 is used to control the arch of a box beam member with an arch, which comprises the following steps: According to the length and the camber of the box beam component, a plurality of the single-piece camber control mechanisms are arranged along the length of the box beam component, so that the working platform plates of all the single-piece camber control mechanisms form an integral working platform surface; The box beam component is placed horizontally on the working platform surface, and based on the arch on the box beam component corresponding to each single-piece arch control mechanism, the length of the length-controllable rods at both ends of the working platform plate is adjusted to drive the baffle plate to move on the pressure-bearing guide rail through the guide rail slider until the distance between the two baffle plates on the single-piece arch control mechanism matches the arch size of the box beam component at this position, thereby completing the arch control of the box beam component.

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