A large-span steel truss end plate connection error fast correction device and method

Abstract

The application relates to the technical field of construction deviation rectification, in particular to a large-span steel truss end plate connection error fast rectification device and method, which comprises an end connection plate, a fixed connection plate and a rectification plate. The end connection plate is a rectangular plate body structure arranged at the end of the large-span steel truss and used for connecting with an external structure. The fixed connection plate is a rectangular connection plate body structure with a relatively fixed position and is used for providing stable support force for the large-span steel truss after being connected with the end connection plate. The end connection plate and the fixed connection plate have a deviation interval due to machining precision or thermal expansion and cold contraction and the like. The rectification plate is arranged at the deviation interval, so that the end connection plate and the fixed connection plate are stably and indirectly abutted. By arranging the rectification plate, the deviation problem between the end connection plate and the fixed connection plate can be effectively solved, the two are stably and indirectly abutted, and reliable support is provided for the large-span steel truss.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of construction deviation correction, and in particular to a large-span steel truss end plate connection error rapid correction device and method. BACKGROUND

[0002] When the large-span steel truss end plate is connected with the fixed structure at the end, it may be difficult to install or not firmly installed due to the engineering error of the large-span steel truss or the error caused by natural environment such as thermal expansion and cold shrinkage. Although the error is generally not large, it is often ignored in the past engineering construction, but in the process of long-term use, the connection is prone to rapid aging, which is dangerous, and when external high load such as earthquake or strong wind occurs, the connection is often damaged as a stress concentration area, and even the main building body is damaged. SUMMARY

[0003] The purpose of the present application is to provide a large-span steel truss end plate connection error rapid correction device and method to solve at least one technical problem in the prior art.

[0004] To solve the above technical problems, the present application provides a large-span steel truss end plate connection error rapid correction device, which comprises an end connecting plate, a fixed connecting plate and a correction plate.

[0005] The end connecting plate is a rectangular plate body structure provided at the end of the large-span steel truss for connecting with the external structure;

[0006] The fixed connecting plate is a rectangular connecting plate body structure with a relatively fixed position, which is used to provide stable support force for the large-span steel truss after connecting with the end connecting plate;

[0007] The end connecting plate and the fixed connecting plate have a deviation distance due to machining precision or thermal expansion and cold shrinkage;

[0008] The correction plate is arranged at the deviation distance, so that the end connecting plate and the fixed connecting plate are stably and indirectly abutted.

[0009] Further, the deviation distance is a parallel error distance;

[0010] The correction plate is a parallel embedded plate;

[0011] The parallel embedded plate is a plate body with the same thickness;

[0012] The parallel embedded plate is provided with one or more plates according to the size of the parallel error distance.

[0013] Further, the deviation distance is a single-axis rotation error distance, which comprises a narrow distance end and a wide distance end;

[0014] The deviation rectification plates are provided in plurality, each of which is different in size;

[0015] The largest-sized deviation rectification plate is in abutment with the fixed connecting plate and is sequentially arranged in the direction from the fixed connecting plate to the end connecting plate, and the plurality of deviation rectification plates are sequentially halved in height and thickness from the narrow-distance end to the wide-distance end;

[0016] The plurality of deviation rectification plates are aligned with the end of the fixed connecting plate on the wide-distance end side.

[0017] Further, the deviation interval is a biaxial rotation error interval, and the closest corner at the interval is a close-distance corner;

[0018] The deviation rectification plate comprises an L-shaped embedded plate;

[0019] The L-shaped embedded plate is rectangular in shape with a corner cut off, and the cut-off corner corresponds to the close-distance corner.

[0020] Further, the deviation interval is a bending error interval, i.e., the end connecting plate is bent;

[0021] The deviation rectification plate is a circular-arc embedded plate;

[0022] One side of the circular-arc embedded plate is a flat surface for abutment with the fixed connecting plate;

[0023] The other side of the circular-arc embedded plate is a circular-arc surface for abutment with the end connecting plate.

[0024] Further, the end connecting plate, the fixed connecting plate and the deviation rectification plate are provided with connecting holes at corresponding positions, and a fastener passes through the connecting holes to connect the end connecting plate, the fixed connecting plate and the deviation rectification plate.

[0025] Further, the deviation rectification plate comprises a first plate body and a second plate body;

[0026] The first plate body and the second plate body are respectively provided with a first ball groove and a second ball groove at corresponding positions;

[0027] It further comprises a deviation rectification ball;

[0028] The deviation rectification ball is arranged in the first ball groove and the second ball groove;

[0029] The first ball groove and the second ball groove are not fully wrapped around the deviation rectification ball, so that the first plate body and the second plate body can be relatively rotated around the deviation rectification ball, thereby adaptively adjusting to different inclination conditions of the first plate body and the second plate body.

[0030] Further, the deviation-correcting ball comprises a first half ball and a second half ball;

[0031] The first half ball is arranged in the first ball groove;

[0032] The second half ball is arranged in the second ball groove;

[0033] The first half ball and the second half ball are oppositely arranged two half balls;

[0034] The first half ball and the second half ball are oppositely arranged two half balls;

[0035] The guide hole is arranged with a guide pin and a compression spring;

[0036] The guide pin is used to limit and guide the relative approach and departure between the first half ball and the second half ball;

[0037] The compression spring is in a compressed state and tends to make the first half ball and the second half ball abut against the inner walls of the first ball groove and the second ball groove.

[0038] Further, in a group of the deviation-correcting plates, the deviation-correcting ball is arranged with one or more.

[0039] In another aspect, the application also discloses a deviation-correcting method of the large-span steel truss end plate connection error fast deviation-correcting device. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0041] Figure 1 It is a three-dimensional structure schematic diagram of the large-span steel truss end plate connection error fast deviation-correcting device disclosed by the present application with parallel error spacing;

[0042] Figure 2 It is a three-dimensional structure schematic diagram of the large-span steel truss end plate connection error fast deviation-correcting device disclosed by the present application using parallel embedded plates for deviation correction;

[0043] Figure 3 It is a three-dimensional structure schematic diagram of the large-span steel truss end plate connection error fast deviation-correcting device disclosed by the present application using multiple groups of parallel embedded plates with different thicknesses for deviation correction;

[0044] Figure 4It is a schematic diagram of the stereo structure of parallel embedded plates;

[0045] Figure 5 It is a schematic diagram of the plane structure of the parallel embedded plates of different thicknesses used by the fast error correction device for the end plate connection of the large-span steel truss disclosed in the application;

[0046] Figure 6 It is a schematic diagram of the stereo structure of the first case of the fast error correction device for the end plate connection of the large-span steel truss disclosed in the application with single-axis rotation error spacing;

[0047] Figure 7 It is a schematic diagram of the stereo structure of the second case of the fast error correction device for the end plate connection of the large-span steel truss disclosed in the application with single-axis rotation error spacing;

[0048] Figure 8 It is a schematic diagram of the stereo structure of the first case of the fast error correction device for the end plate connection of the large-span steel truss disclosed in the application with single-axis rotation error spacing after adding a correction plate;

[0049] Figure 9 It is a schematic diagram of the stereo structure of the second case of the fast error correction device for the end plate connection of the large-span steel truss disclosed in the application with single-axis rotation error spacing after adding a correction plate;

[0050] Figure 10 It is a schematic diagram of the stereo structure of 1 / 2X embedded plates;

[0051] Figure 11 It is a schematic diagram of the stereo structure of 1 / 4X embedded plates;

[0052] Figure 12 It is a schematic diagram of the stereo structure of 1 / 8X embedded plates;

[0053] Figure 13 It is a schematic diagram of the plane structure of the first case of the fast error correction device for the end plate connection of the large-span steel truss disclosed in the application with single-axis rotation error spacing after adding a correction plate;

[0054] Figure 14 It is a schematic diagram of the plane structure of the second case of the fast error correction device for the end plate connection of the large-span steel truss disclosed in the application with single-axis rotation error spacing after adding a correction plate;

[0055] Figure 15 It is a schematic diagram of the plane structure of the third case of the fast error correction device for the end plate connection of the large-span steel truss disclosed in the application with single-axis rotation error spacing after adding a correction plate;

[0056] Figure 16A three-dimensional structure schematic diagram of the large-span steel truss end plate connection error fast correction device of the present application before adding a correction plate when having a double-axis rotation error interval;

[0057] Figure 17 A three-dimensional structure schematic diagram of an L-shaped embedded plate;

[0058] Figure 18 A three-dimensional structure schematic diagram of a 1 / 2Y embedded plate;

[0059] Figure 19 A three-dimensional structure schematic diagram of a 1 / 4 corner embedded plate;

[0060] Figure 20 A three-dimensional structure schematic diagram of the large-span steel truss end plate connection error fast correction device of the present application after adding a correction plate when having a double-axis rotation error interval;

[0061] Figure 21 A three-dimensional structure schematic diagram of the large-span steel truss end plate connection error fast correction device of the present application when having a bending error interval in the first case;

[0062] Figure 22 A three-dimensional structure schematic diagram of the large-span steel truss end plate connection error fast correction device of the present application when having a bending error interval in the second case;

[0063] Figure 23 A three-dimensional structure schematic diagram of a circular arc embedded plate in the first case;

[0064] Figure 24 A three-dimensional structure schematic diagram of a circular arc embedded plate in the second case;

[0065] Figure 25 A plane structure schematic diagram of the large-span steel truss end plate connection error fast correction device of the present application when having a bending error interval in the first case;

[0066] Figure 26 A plane structure schematic diagram of the large-span steel truss end plate connection error fast correction device of the present application when having a bending error interval in the second case.

[0067] Figure 27 A plane structure perspective schematic diagram of the large-span steel truss end plate connection error fast correction device of the present application when adopting the technical solution of Embodiment 5;

[0068] Figure 28 A structure schematic diagram of a first plate body and a second plate body;

[0069] Figure 29Fig. 1 is a perspective view of the large-span steel truss end plate connection error fast correction device according to the present application;

[0070] Figure 30 Fig. 2 is a perspective view of the large-span steel truss end plate connection error fast correction device according to the present application in the initial state;

[0071] Figure 31 Fig. 3 is a perspective view of the large-span steel truss end plate connection error fast correction device according to the present application in the slightly rotated state;

[0072] Figure 32 Fig. 4 is a perspective view of the large-span steel truss end plate connection error fast correction device according to the present application in the pressed state.

[0073] Reference signs:

[0074] 1-end connecting plate; 2-fixed connecting plate; 3-correction plate; 4-deviation distance; 5-parallel error distance; 6-parallel embedded plate; 7-narrow distance end; 8-wide distance end; 9-biaxial rotation error distance; 10-near distance angle; 11-L-shaped embedded plate; 12-bending error distance; 13-circular arc embedded plate; 14-connecting hole; 15-first plate body; 16-second plate body; 17-first ball groove; 18-second ball groove; 19-correction ball; 20-first hemisphere; 21-second hemisphere; 22-guide hole; 23-guide pin; 24-compression spring; 25-1 / 2X direction embedded plate; 26-1 / 2Y direction embedded plate; 27-1 / 4 angle embedded plate; 28-single-axis rotation error distance; 29-1 / 4X direction embedded plate; 30-1 / 8X direction embedded plate; DETAILED DESCRIPTION

[0075] The technical solutions of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0076] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0077] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0078] It should also be noted that the specific embodiments or implementation methods described below are a series of optimized settings listed by the present invention to further explain the specific content of the invention, and these settings can be combined or used in conjunction with each other.

[0079] The present invention will be further explained below with reference to specific embodiments.

[0080] Example 1

[0081] like Figures 1-5 As shown in the figure, this embodiment provides a rapid correction device for the connection error of the end plate of a large-span steel truss, including an end connecting plate 1, a fixed connecting plate 2, and a correction plate 3;

[0082] The end connecting plate 1 is a rectangular plate structure set at the end of a large-span steel truss for connection with an external structure;

[0083] The fixed connecting plate 2 is a rectangular connecting plate structure with a relatively fixed position, which is used to provide stable support for the large-span steel truss after being connected with the end connecting plate 1;

[0084] The end connecting plate 1 and the fixed connecting plate 2 have a deviation gap of 4 due to factors such as processing accuracy or thermal expansion and contraction.

[0085] The correction plate 3 is positioned at the deviation spacing 4, so that the end connecting plate 1 and the fixed connecting plate 2 are stably and indirectly abutted against each other.

[0086] As a further implementation of the embodiment, the deviation gap 4 is a parallel error gap 5.

[0087] The deviation plate 3 is a parallel embedded plate 6.

[0088] The parallel embedded plate 6 is a plate body with a uniform thickness.

[0089] The parallel embedded plate 6 is provided with one or more plates according to the size of the parallel error gap 5.

[0090] As a further implementation of the embodiment, the end connecting plate 1, the fixed connecting plate 2 and the deviation plate 3 are provided with connecting holes 14 at corresponding positions, and fasteners pass through the connecting holes 14 to connect the end connecting plate 1, the fixed connecting plate 2 and the deviation plate 3.

[0091] In the embodiment, the end connecting plate 1 and the fixed connecting plate 2 have a parallel error gap 5, that is, the surfaces of the end connecting plate 1 and the fixed connecting plate 2 are parallel and do not contact, and one or more parallel embedded plates 6 are arranged between the end connecting plate 1 and the fixed connecting plate 2. The parallel embedded plate 6 can be provided with various thickness specifications, preferably four specifications of 10 mm, 5 mm, 2 mm and 1 mm. In actual use, the thickest parallel embedded plate 6 that can be placed is first placed at the parallel error gap 5, if there is still a gap, the thickest parallel embedded plate 6 that can be placed is continuously placed, until the parallel error gap 5 is smaller than the thinnest parallel embedded plate 6. After the prevention of the deviation plate 3 is completed, the above components are fastened and connected by passing fasteners through the connecting holes 14 on the deviation plate 3, the end connecting plate 1 and the fixed connecting plate 2.

[0092] Specifically, for the parallel error gap 5, the deviation plate 3 is added, combined and integrated in the principle of the least number of deviation plates 3. For example, Figure 2 and 3 different thickness combinations of the deviation plate 3 are shown. When the parallel error gap 5 is too large (for example, more than 20 mm) or the number of deviation plates 3 used is excessive (for example, more than 4), the component is reprocessed or the connection method is changed.

[0093] By using the above technical solution, the present application has the following beneficial effects:

[0094] (1) By providing the deviation plate 3, the deviation problem between the end connecting plate 1 and the fixed connecting plate 2 due to machining precision or thermal expansion and cold contraction can be effectively solved, so that the two stably indirectly abut and provide reliable support for the large-span steel truss.

[0095] (2) For parallel error interval 5, the correction plate 3 adopts the form of parallel embedded plate 6, which can be set in multiple thickness specifications, and can be flexibly combined with one or more plates according to the actual parallel error interval 5 size, to adapt to different error conditions.

[0096] (3) The additional and combined correction plate 3 follows the principle of the least number, and the thickest parallel embedded plate 6 is placed first during installation, and is gradually added according to the gap, which is simple and easy to operate, and can quickly complete the correction work.

[0097] (4) The end connecting plate 1, the fixed connecting plate 2 and the correction plate 3 are provided with corresponding connecting holes 14, which are connected by fasteners to ensure the firm connection of each part and the stability of the overall structure.

[0098] Embodiment 2

[0099] As shown in Figures 6-15 , the difference between this embodiment and embodiment 1 is that the deviation interval 4 is a single-axis rotation error interval 28, which includes a narrow interval end 7 and a wide interval end 8;

[0100] The correction plate 3 is provided with a plurality of correction plates 3, each of which is different in size;

[0101] The largest size correction plate 3 abuts against the fixed connecting plate 2, and is sequentially arranged along the direction from the fixed connecting plate 2 to the end connecting plate 1, and the height of the plurality of correction plates 3 from the narrow interval end 7 to the wide interval end 8 direction is sequentially halved, and the thickness is sequentially reduced;

[0102] The plurality of correction plates 3 are aligned with the end of the fixed connecting plate 2 on the wide interval end 8 side.

[0103] In this embodiment, the single-axis rotation error interval 28 has a wider distance on one side and a narrower distance on the other side, thereby dividing the wide interval end 8 and the narrow interval end 7. Among them, the narrow interval end 7 may be separated by a certain distance, or may abut against each other. This error is generally caused by construction and installation, or may be caused by the welding of the rod and the plate, which causes the plate to rotate as a rigid body, causing the end plate to rotate around the edge of the plate. The error often manifests as a distance difference between the narrow interval end 7 and the wide interval end 8 of more than 1mm. The two connecting plates have an angle and a gap, and according to the gap characteristics, the gap types are divided into three types. The first case is as shown in Figure 13As shown, the distance of the narrow end 7 is greater than 0 mm, and first, the thickness and number of the correction plates 3 are determined according to the parallel distance of the narrow end 7 based on the error measurement result. The thickness of the correction plates 3 can adopt the several sizes of the prefabricated plates in Embodiment 1, or the sizes of the 1 / 2X inward embedded plate 25, the 1 / 4X inward embedded plate 29 and the 1 / 8X inward embedded plate 30 can be determined according to the distance difference between the narrow end 7 and the wide end 8, the size of the 1 / 2X inward embedded plate 25 is half of the distance difference between the narrow end 7 and the wide end 8, the size of the 1 / 4X inward embedded plate 29 is one fourth of the distance difference between the narrow end 7 and the wide end 8, and the size of the 1 / 8X inward embedded plate 30 is one eighth of the distance difference between the narrow end 7 and the wide end 8. The second case is as shown in FIG. 2B. Figure 14 As shown, the distance of the narrow end 7 is equal to 0, and the sizes of the correction plates 3 adopt the prefabricated sizes in Embodiment 1 or the sizes of the 1 / 2X inward embedded plate 25 and the 1 / 4X inward embedded plate 29 are determined according to the error measurement result, the thickness of the 1 / 2X inward embedded plate 25 is half of the distance of the wide end 8, the thickness of the 1 / 4X inward embedded plate 29 is one fourth of the distance of the wide end 8, and the thickness of the 1 / 8X inward embedded plate 30 is one eighth of the distance of the wide end 8. The third case is as shown in FIG. 2C. Figure 15 As shown, the distance of the narrow end 7 is less than 0, and the structure or component size and position need to be adjusted, and then the case is converted into the first or second case above, and then the two processing modes are processed.

[0104] By adopting the technical scheme above, the present application has the following beneficial effects:

[0105] (1) According to the characteristics that the single-axis rotation error interval 28 has the narrow end 7 and the wide end 8, multiple correction plates 3 with different sizes are arranged, and the correction plates 3 with appropriate thickness and number can be accurately selected for correction according to the actual distance of the narrow end 7 and the wide end 8, so that the rotation error problem caused by the rotation of the plate rigid body due to construction installation or welding can be effectively solved.

[0106] (2) The largest correction plate 3 abuts against the fixed connecting plate 2, multiple correction plates 3 are arranged along the direction from the fixed connecting plate 2 to the end connecting plate 1, the height of the correction plates 3 is sequentially halved from the narrow end 7 to the wide end 8, the thickness of the correction plates 3 is sequentially reduced, and the wide end 8 side is aligned with the end of the fixed connecting plate 2. This arrangement makes the correction plates 3 better fit the shape of the single-axis rotation error interval 28, realizes more stable and effective correction, and ensures the connection precision between the end connecting plate 1 and the fixed connecting plate 2.

[0107] (3) According to different distances of the narrow-distance end 7 (greater than 0 mm, equal to 0 mm, less than 0 mm), a plurality of size determination methods of the deviation rectification plate 3 are provided. Both prefabricated sizes and sizes determined according to the distance difference between the narrow-distance end 7 and the wide-distance end 8 can be used to calculate the size of the deviation rectification plate 3, and when the distance of the narrow-distance end 7 is less than 0 mm, the size and position of the structure or component can be adjusted to convert it into other treatable conditions, so as to flexibly cope with various complex error conditions and improve the feasibility and effectiveness of deviation rectification.

[0108] (4) Through accurate deviation rectification processing, the angle and gap between the two connecting plates can be effectively eliminated, the connection is more compact and stable, the overall quality of the large-span steel truss end plate connection is improved, and the stability and safety of the structure are enhanced.

[0109] Embodiment 3

[0110] As shown in the drawings, the difference between this embodiment and embodiment 1 is that the deviation interval 4 is a biaxial rotation error interval 9, and the closest angle at the interval is a close-distance angle 10. Figures 16-20

[0111] The deviation rectification plate 3 comprises an L-shaped embedded plate 11.

[0112] The L-shaped embedded plate 11 is rectangular in shape with one corner cut off, and the cut-off corner corresponds to the close-distance angle 10.

[0113] In this embodiment, the biaxial rotation error interval 9 is generally caused by construction and installation, or the rotation of the plate caused by the welding of the rod and the plate, which causes the end plate to rotate around one side of the plate, and then rotate around the perpendicular side, which will result in one angle interval being smaller than the other three angle intervals. When the deviation rectification plate 3 is set, the L-shaped embedded plate 11 is selected to avoid the angle with the smallest interval (i.e. the close-distance angle 10). The L-shaped embedded plate 11 in this embodiment can be used alone or in combination with the deviation rectification plate 3 in other embodiments. In addition, 1 / 2X-direction embedded plate 25, 1 / 2Y-direction embedded plate 16 and 1 / 4 corner embedded plate 27 can also be set in the X-direction and Y-direction of the plane coordinate system, respectively, for further stacking at the position where further stacking is required based on the L-shaped embedded plate 11.

[0114] By adopting the above technical scheme, the present application has the following beneficial effects:

[0115] (1) A special deviation rectification scheme is designed for the biaxial rotation error interval 9. This error is usually caused by the rotation of the plate due to construction and installation or welding, which results in one angle interval being smaller than the other three angle intervals. This scheme can effectively cope with this special error, accurately fill the deviation interval 4, and ensure the connection accuracy of the structure. ​

[0116] (2) The L-shaped embedded plate 11 is used as the deviation rectification plate 3, which is cut at one corner of a rectangle and corresponds to the close distance corner 10, can cleverly avoid the close distance corner 10 with small distance, better fit the shape of the biaxial rotation error distance 9, realize stable and effective deviation rectification, and make the connection between the end connecting plate 1 and the fixed connecting plate 2 more closely.

[0117] (3) The L-shaped embedded plate 11 can be used alone to meet some relatively simple deviation rectification requirements, and can be used in combination with the deviation rectification plate 3 in other embodiments to increase the flexibility and adaptability of the deviation rectification scheme, and the most suitable deviation rectification combination mode can be selected according to the actual error situation.

[0118] (4) The 1 / 2X-direction embedded plate 25, the 1 / 2Y-direction embedded plate 16 and the 1 / 4 corner embedded plate 27 are respectively arranged in the X-direction and the Y-direction of the plane coordinate system, which can be used in combination on the basis of the L-shaped embedded plate 11 for deviation rectification at positions requiring further deviation rectification, further refine the deviation rectification operation, improve the deviation rectification accuracy, and ensure the quality and stability of the large-span steel truss end plate connection.

[0119] Embodiment 4

[0120] As shown in Figures 21-26 , the difference between this embodiment and embodiment 1 is that the deviation distance 4 is a bending error distance 12, that is, the end connecting plate 1 appears bending;

[0121] The deviation rectification plate 3 is a circular arc embedded plate 13;

[0122] One side of the circular arc embedded plate 13 is a plane, which is used to abut against the fixed connecting plate 2;

[0123] The other side of the circular arc embedded plate 13 is a circular arc surface, which is used to abut against the end connecting plate 1.

[0124] The bending error distance 12 in this embodiment is generally caused by the deviation of component processing, mostly caused by the welding of bar and plate. First, the type of bending distance needs to be judged, that is, the type of small middle distance and large edge distance as shown in Figure 21 , 25 or the type of large middle distance and small edge distance as shown in Figure 22 , 26 For the type of large middle distance and small edge distance, the deviation rectification plate 3 with corresponding thickness is selected according to the distance of the largest middle distance to perform arc convex surface cutting, and the circular arc radius is ; and for the type of small middle distance and large edge distance, the deviation rectification plate 3 with corresponding thickness is selected according to the distance of the largest edge distance to perform arc concave surface cutting, and the circular arc radius is .

[0125] By adopting the above technical solution, the present invention has the following beneficial effects:

[0126] (1) A special correction scheme was designed to address the special case of bending error spacing 12 caused by bending of the end connecting plate 1. This error is mostly caused by component processing deviation, especially by welding of rods and plates. This scheme can effectively solve such problems and ensure the accuracy of structural connection.

[0127] (2) The arc-shaped inner plate 13 is used as the correction plate 3. One side of its plane abuts against the fixed connecting plate 2, and the other side of its arc surface abuts against the end connecting plate 1. It closely fits the shape of the end connecting plate 1 after bending, so as to achieve stable and effective correction and make the connection more tight and reliable.

[0128] (3) Different cutting methods are adopted according to the different types of bending spacing (large middle spacing and small edge spacing or small middle spacing and large edge spacing). For the type with large middle spacing and small edge spacing, the corresponding thickness of the correction plate 3 is selected according to the maximum middle spacing for arc-shaped convex surface cutting; for the type with small middle spacing and large edge spacing, the corresponding thickness of the correction plate 3 is selected according to the maximum edge spacing for arc-shaped concave surface cutting. This targeted operation can more accurately eliminate bending errors and improve the correction effect.

[0129] (4) By effectively correcting the deviation, the connection problem caused by the bending of the end connecting plate 1 was eliminated, the connection strength and stability between the end connecting plate 1 and the fixed connecting plate 2 were enhanced, and the overall performance and safety of the large-span steel truss structure were improved.

[0130] Example 5

[0131] like Figures 27-32 As shown, the difference between this embodiment and Embodiment 1 is that the correction plate 3 includes a first plate body 15 and a second plate body 16;

[0132] The first plate 15 and the second plate 16 are respectively provided with a first ball groove 17 and a second ball groove 18 at corresponding positions;

[0133] It also includes the 19-ball correction ball;

[0134] The correction ball 19 is disposed in the first ball groove 17 and the second ball groove 18;

[0135] The first ball groove 17 and the second ball groove 18 do not fully enclose the correction ball 19, so that the first plate 15 and the second plate 16 can rotate relative to each other about the correction ball 19 as the axis, thereby making adaptive adjustments for different tilt conditions of the first plate 15 and the second plate 16.

[0136] like Figures 30-32As shown, as a further implementation form of the present embodiment, the deviation-correcting ball 19 comprises a first half ball 20 and a second half ball 21;

[0137] The first half ball 20 is arranged in the first ball groove 17;

[0138] The second half ball 21 is arranged in the second ball groove 18;

[0139] The first half ball 20 and the second half ball 21 are oppositely arranged two half balls;

[0140] The first half ball 20 and the second half ball 21 are oppositely arranged two half balls;

[0141] The guide hole 22 is arranged in the first half ball 20 and the second half ball 21;

[0142] The guide pin 23 is used to limit and guide the relative approaching and moving away between the first half ball 20 and the second half ball 21;

[0143] The compression spring 24 is in a compressed state and tends to make the first half ball and the second half ball abut on the inner wall of the first ball groove 17 and the second ball groove 18.

[0144] The deviation-correcting ball 19 in the present embodiment is a double ball structure. When the first plate body 15 and the second plate body 16 relatively approach or move away, the compression spring 24 is constantly in a compressed state, so it has a certain adaptive space, so that the deviation-correcting ball 19 will not fall out of the first ball groove 17 and the second ball groove 18 when the first plate body 15 and the second plate body 16 move away, and the first ball and the second ball can synchronously rotate due to the guide pin 23 when the first plate body 15 and the second plate body 16 deflect.

[0145] As a further implementation form of the present embodiment, one or more deviation-correcting balls 19 are arranged in a group of deviation-correcting plates.

[0146] As a further implementation form of the present embodiment, the first ball groove 17 and the second ball groove 18 are respectively arranged at the center positions of the first plate body 15 and the second plate body 16, and the deviation-correcting ball 19 is arranged in the first ball groove 17 and the second ball groove 18. Since only a single deviation-correcting ball 19 is used as a fulcrum, the first plate body 15 and the second plate body 16 can relatively freely rotate, and can freely cope with the double-axis rotation error interval as described in Embodiment 3.

[0147] As a further implementation of the embodiment, the first ball groove 17 and the second ball groove 18 are oppositely arranged in a row on the corresponding positions of the first plate body 15 and the second plate body 16, respectively, and the row includes no less than two ball grooves. The single-row correction ball 19 forms a rotation axis, so that the first plate body 15 and the second plate body 16 can perform single-axis rotation with the connecting line of the single-row correction ball 19 as the axis, thereby being able to adapt to the single-axis rotation error interval as described in Embodiment 2.

[0148] As a further implementation of the embodiment, the first plate body 15 and the second plate body 16 are correspondingly arranged with the first ball groove 17 and the second ball groove 18;

[0149] The first ball groove 17 and the second ball groove 18 are not arranged at the connecting hole;

[0150] During on-site construction, the correction ball 19 is placed in the first ball groove 17 and the second ball groove 18 according to actual construction needs, and is fixed through the fastener passing through the connecting hole.

[0151] By adopting the technical scheme, the present application has the following beneficial effects:

[0152] (1) The correction plate is connected by the first plate body 15 and the second plate body 16 through the correction ball 19, the first and second ball grooves do not fully wrap the correction ball 19, the two plate bodies can relatively rotate with the correction ball 19 as the axis, adaptive adjustment can be performed according to different inclination conditions, various complex errors can be effectively coped with, and the accuracy and flexibility of correction are improved.

[0153] (2) The correction ball 19 adopts a double-ball structure and is composed of first and second hemispheres and is connected through a guide pin 23 and a compression spring 24. The compression spring 24 is constantly compressed to provide adaptive space for relative movement of the two plate bodies, prevent the correction ball 19 from falling, and the guide pin 23 ensures synchronous rotation of the two hemispheres, thereby enhancing the stability and reliability of the structure.

[0154] (3) One or more correction balls 19 can be arranged in a group of correction plates, the number of correction balls 19 can be flexibly adjusted according to actual error conditions and correction needs, more choices are provided for correction in different scenarios, and the applicability and practicability of the scheme are improved.

[0155] (4) The first and second ball grooves are flexibly arranged, when arranged at the center position of the plate body, the two plate bodies can relatively rotate freely and can cope with the double-axis rotation error interval; when arranged in a row, the single-row correction ball 19 forms a rotation axis, single-axis rotation can be realized, the single-axis rotation error interval is adapted, and the correction needs of various error types are met.

[0156] (5) The first plate body 15 and the second plate body 16 are provided with ball grooves in a corresponding array, and no ball groove is arranged at the connecting hole. During on-site construction, a deviation correction ball 19 can be placed according to actual requirements and fixed through a fastener. This design makes the construction process more flexible, can accurately correct the deviation according to the specific situation on site, and improves the construction efficiency and quality.

[0157] Embodiment 6

[0158] The embodiment provides a deviation correction method of a large-span steel truss end plate connection error fast correction device, including the following steps:

[0159] S1: determining an error type;

[0160] S2: placing an embedded plate;

[0161] S3: fastening using a fastener.

[0162] In the step S1, the error type is a parallel error, a single-axis rotation error, a double-axis rotation error or a bending error interval. After the error type is determined, the embedded plate is placed in the step S2, and the fastener is used to fasten and connect after the embedded plate is installed.

[0163] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A large-span steel truss end plate connection error fast correction device, characterized in that, The end connecting plate, the fixed connecting plate and the deviation rectifying plate are provided; The end connecting plate is a rectangular plate body structure provided at the end of the large-span steel truss for connecting with external structures; The fixed connecting plate is a rectangular connecting plate body structure with a relatively fixed position, which is used to provide stable support force for the large-span steel truss after being connected with the end connecting plate; The end connecting plate and the fixed connecting plate have a deviation interval due to machining precision or thermal expansion and contraction; The deviation rectifying plate is arranged at the deviation interval, so that the end connecting plate and the fixed connecting plate are stably and indirectly abutted; The deviation rectifying plate comprises a first plate body and a second plate body; First ball grooves and second ball grooves are respectively arranged at corresponding positions on the first plate body and the second plate body; A deviation rectifying ball is further included; The deviation rectifying ball is arranged in the first ball grooves and the second ball grooves; The first ball grooves and the second ball grooves are not fully wrapped around the deviation rectifying ball, so that the first plate body and the second plate body can be relatively rotated around the deviation rectifying ball, thereby adaptively adjusting different inclination conditions of the first plate body and the second plate body; The deviation rectifying ball comprises a first half-sphere and a second half-sphere; The first half-sphere is arranged in the first ball groove; The second half-sphere is arranged in the second ball groove; The first half-sphere and the second half-sphere are two half-spheres arranged oppositely; A guide hole is arranged at the relative position of the center axes of the first half-sphere and the second half-sphere; A guide pin and a compression spring are arranged in the guide hole; The guide pin is used to limit and guide the relative approach and departure between the first half-sphere and the second half-sphere; The compression spring is in a compressed state and tends to make the first half-sphere and the second half-sphere abut against the inner walls of the first ball groove and the second ball groove; First ball grooves and second ball grooves are arranged in an array on the first plate body and the second plate body; Connecting holes are arranged at corresponding positions on the end connecting plate, the fixed connecting plate and the deviation rectifying plate, and fasteners pass through the connecting holes to connect the end connecting plate, the fixed connecting plate and the deviation rectifying plate; The first ball grooves and the second ball grooves are not arranged at the connecting holes; The deviation rectifying ball is put into the first ball grooves and the second ball grooves according to actual construction requirements during on-site construction, and is fixed by fasteners passing through the connecting holes.

2. A deviation rectifying method of the large-span steel truss end plate connection error rapid deviation rectifying device according to claim 1.

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