Precision control device for non-integral pre-assembly of steel bridge

Abstract

The precision control device comprises a bottom rod, a left side rod, a right side rod and an upper fixing rod, the left end and the right end of the bottom rod are rotatably connected and fixed to the bottom end of the left side rod and the bottom end of the right side rod, and the upper fixing rod is slidably connected and fixed to the upper portion of the left side rod and the upper portion of the right side rod. A supporting device is fixedly connected between the right side rod and the bottom rod in a sliding mode, and the bottom rod, the left side rod, the right side rod and the upper fixing rod are telescopic rods. The length-adjustable bottom rod, the left side rod, the right side rod and the upper fixing rod are connected to form frame-shaped structures of different shapes to detect the dimensional precision in the steel bridge installation process, and the problem that the assembly precision is difficult to control due to the fact that an overall pre-assembly technology cannot be adopted is solved. And the problems of size deviation, shape mismatching and connection parts are effectively avoided. By guaranteeing the splicing precision, the structural stability and the bearing capacity of the steel bridge are guaranteed, use safety is guaranteed, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel bridge construction technical field, concretely relates to a precision control device for steel bridge non - integral pre - assembly. BACKGROUND

[0002] In the steel bridge manufacturing process, the integral pre-assembly process is the traditional means to ensure the assembly precision. However, due to the constraints of cost, construction period and construction conditions and many other factors, the integral pre-assembly process cannot be applied in any case.

[0003] The existing alternative method has significant deficiencies in precision control, which makes the steel bridge prone to a series of problems after assembly. For example, size deviation will cause the components to be unable to accurately butt joint, thereby adversely affecting the structural stability; shape mismatch will cause stress concentration, reducing the carrying capacity and service life of the steel bridge; if the connection part has problems such as loose connection and angle deviation, it will seriously damage the quality and performance of the steel bridge, and even may cause safety hazards. SUMMARY

[0004] In view of the above problems, the utility model is proposed to provide a precision control device for steel bridge non-integral pre-assembly to overcome the above problems or at least partially solve the above problems, which detects the size precision in the steel bridge installation process by utilizing the length-adjustable bottom rod, left side rod, right side rod and upper fixed rod to form a frame-shaped structure of different shapes.

[0005] Specifically, the utility model provides a precision control device for steel bridge non-integral pre-assembly, characterized in that it comprises a bottom rod, a left side rod, a right side rod and an upper fixed rod, the left and right ends of the bottom rod are rotatably connected to fix the bottom ends of the left and right side rods, the upper fixed rod is slidably connected to be fixed on the upper parts of the left and right side rods, a support device is slidably connected and fixed between the right side rod and the bottom rod, and the bottom rod, the left side rod, the right side rod and the upper fixed rod are telescopic rods.

[0006] Optionally, the bottom rod comprises a bottom rod sliding hole cross rod and a bottom rod drilled hole cross rod, the right end of the bottom rod sliding hole cross rod is a hollow structure, four sides of the hollow structure part of the bottom rod sliding hole cross rod are provided with long strip-shaped fixing holes for the through of the tension bolts, and the left end of the bottom rod drilled hole cross rod can slide in the hollow structure of the right end of the bottom rod sliding hole cross rod to increase or decrease the length size of the bottom rod and fix the length of the bottom rod by bolts.

[0007] Optionally, the left side rod comprises a left upper sliding hole cross rod and a left lower drilling hole cross rod, the left upper sliding hole cross rod is provided with a hollow structure, four sides of the hollow structure part of the left upper sliding hole cross rod are provided with long strip-shaped fixing holes for passing through loose bolts, and the upper end of the left lower drilling hole cross rod can slide in the hollow structure of the left upper sliding hole cross rod to increase or reduce the length size of the left side rod and fix the length of the left side rod through bolts.

[0008] Optionally, the right side rod comprises a right upper sliding hole cross rod and a right lower drilling hole cross rod, the right upper sliding hole cross rod is provided with a hollow structure, four sides of the hollow structure part of the right upper sliding hole cross rod are provided with long strip-shaped fixing holes for passing through loose bolts, and the upper end of the right lower drilling hole cross rod can slide in the hollow structure of the right upper sliding hole cross rod to increase or reduce the length size of the right side rod and fix the length of the right side rod through bolts.

[0009] Optionally, the upper fixed rod comprises an upper sliding hole cross rod and an upper drilling hole cross rod, the upper sliding hole cross rod is provided with a hollow structure, four sides of the hollow structure part of the upper sliding hole cross rod are provided with long strip-shaped fixing holes for passing through loose bolts, and the left end of the upper drilling hole cross rod can slide in the hollow structure of the upper sliding hole cross rod to increase or reduce the length size of the upper fixed rod and fix the length of the upper fixed rod through bolts.

[0010] Optionally, the support device comprises a support rod fixed at right angles, and both ends of the support rod are slidably fixed in the hollow structures of the bottom rod and the right side rod through loose bolts.

[0011] Optionally, the support device further comprises a reinforcing rod, and both ends of the reinforcing rod are slidably fixed in the hollow structures of the bottom rod and the right side rod through loose bolts.

[0012] The precision control device for non-integral pre-assembly of a steel bridge beam can detect the dimensional precision in the installation process of the steel bridge beam by utilizing the length-adjustable bottom rod, the left side rod, the right side rod and the upper fixed rod to form a frame-shaped structure of different shapes, solve the assembly precision control problem caused by the inability to adopt the integral pre-assembly process, and effectively avoid the problems of dimensional deviation, shape mismatch and connection part.

[0013] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] Some specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings indicate the same or similar components or parts. Those skilled in the art will understand that the drawings are not necessarily drawn to scale. In the drawings:

[0015] Figure 1 is a schematic overall structure diagram according to an embodiment of the present application;

[0016] In the figure: 1 - left upper slide hole crossbar; 2 - left lower drilling crossbar; 3 - bottom bar slide hole crossbar; 4 - bottom bar drilling crossbar; 5 - right lower drilling crossbar; 6 - right upper slide hole crossbar; 7 - upper drilling crossbar; 8 - upper slide hole crossbar; 9 - support bar; 10 - reinforcing bar. DETAILED DESCRIPTION

[0017] The pellet and pill vacuum recovery device according to the embodiments of the present application will be described below with reference to Figure 1 In the description of the embodiments, it should be understood that the terms "first", "second" are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features, i.e. one or more of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features, unless otherwise specifically described, it indicates that other features and can further include other features are not excluded.

[0018] Unless otherwise specifically defined and limited, the terms "set", "install", "connect", "connect", "fix", "couple" and other terms should be broadly understood, for example, can be fixedly connected, or can be detachably connected, or integrated; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0019] Furthermore, in the description of the present embodiments, a first feature being "on", "above", or "on top" of a second feature can include the first and second features being directly in contact with each other, or the first and second features not being directly in contact with each other but being in contact through a third feature between the first and second features. That is, in the description of the present embodiments, a first feature being "on", "above", or "on top" of a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under", "below", or "underneath" a second feature can be the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature is at a lower level than the second feature.

[0020] In the description of the present embodiments, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0021] Figure 1 is a schematic structural diagram of one embodiment of the present application, like Figure 1As shown, it comprises a bottom rod, a left side rod, a right side rod and an upper fixed rod. The bottom rod comprises a bottom rod sliding hole crossbar 3 and a bottom rod drilling hole crossbar 4. The right end of the bottom rod sliding hole crossbar 3 is hollow. Four sides of the hollow structure of the bottom rod sliding hole crossbar 3 are provided with long strip-shaped fixing holes for the passing of loose bolts. The left end of the bottom rod drilling hole crossbar 4 can slide in the hollow structure of the right end of the bottom rod sliding hole crossbar 3. When the drilling hole crossbar 4 and the bottom rod sliding hole crossbar 3 slide to the required size, the length of the bottom rod is fixed by the loose bolts. The left side rod comprises a left upper sliding hole crossbar 1 and a left lower drilling hole crossbar 2. The lower half of the left upper sliding hole crossbar 1 is provided with a hollow structure. Four sides of the hollow structure of the left upper sliding hole crossbar 1 are provided with long strip-shaped fixing holes for the passing of loose bolts. The upper end of the left lower drilling hole crossbar 2 is slidably fixed in the hollow structure of the left upper sliding hole crossbar 1. When the left side rod reaches the required length, the left upper sliding hole crossbar 1 and the left lower drilling hole crossbar 2 are fixed by the loose bolts. The right side rod comprises a right upper sliding hole crossbar 6 and a right lower drilling hole crossbar 5. The right upper sliding hole crossbar 6 is provided with a hollow structure. Four sides of the hollow structure of the right upper sliding hole crossbar 6 are provided with long strip-shaped fixing holes for the passing of loose bolts. The upper end of the right lower drilling hole crossbar 5 is slidably fixed in the hollow structure of the right upper sliding hole crossbar 6. When the right side plate reaches the required length, the right upper sliding hole crossbar 6 and the right lower drilling hole crossbar 5 are fixed by the loose bolts. The upper fixed rod comprises an upper sliding hole crossbar 8 and an upper drilling hole crossbar 7. The right end of the upper sliding hole crossbar 8 is provided with a hollow structure. The front and back two sides of the hollow structure of the upper sliding hole crossbar 8 are provided with long strip-shaped fixing holes for the passing of loose bolts. The left end of the upper drilling hole crossbar 7 can slide in the hollow structure of the upper sliding hole crossbar 8 to increase or decrease the length of the upper fixed rod. When the upper fixed rod reaches the required length, the upper sliding hole crossbar 8 and the upper drilling hole crossbar 7 are fixed by the loose bolts. The left and right ends of the bottom rod are rotatably connected and fixed to the bottom ends of the left side rod and the right side rod by loose bolts. The left and right ends of the upper fixed rod are slidably connected and fixed in the long strip-shaped fixing holes of the left side rod and the right side rod by loose bolts. Thus, the bottom rod, the left side rod, the right side rod and the upper fixed rod form a frame-shaped structure.

[0022] In order to enhance the fixing strength of the frame-shaped structure, a support rod 9 and a reinforcing rod 10 are further provided. The support rod 9 is a right-angle type welded rod. The two ends of the support rod 9 are slidably fixed in the long strip-shaped fixing holes of the bottom rod and the right side rod by loose bolts. The reinforcing rod 10 is a straight rod. The two ends of the reinforcing rod 10 are slidably fixed in the long strip-shaped fixing holes of the bottom rod and the right side rod by loose bolts.

[0023] In this embodiment, the bottom rod sliding hole cross bar 3 is 650mm*65mm, the left lower drilling cross bar 2 is 900mm*65mm, the left upper sliding hole cross bar 1, the right upper sliding hole cross bar 6 and the upper sliding hole cross bar 8 are all 1000mm*65mm, the upper drilling cross bar 7 is 900mm*65mm, the supporting rod 9 is 900mm*65mm, the reinforcing rod 10 is 110mm*40mm, and the loose bolt is M12*80mm. These are only the sizes in this embodiment, and in other embodiments, the sizes can be changed according to different use scenarios, which are also within the protection scope of the utility model.

[0024] In use, the actual operation adjustment process is as follows: when the nested bridge section is made, first place the embodiment on the made bridge section bottom plate, ensure that the bottom rod is tightly attached to the bottom plate, adjust the length and angle of the bottom rod, the left rod, the right rod and the upper fixing rod to tightly attach to the inner wall of the made bridge section and try to keep the length of each side of the made bridge section consistent, fix the overall structure through the supporting rod 9 and the reinforcing rod 10, so that the whole structure is fixed and stable as a whole. In this embodiment, when the right angle structure of the supporting rod 9 is 90 degrees with the bottom rod and the right rod, the fixing effect is better.

[0025] After the whole device is fixed and formed, place the bottom rod on the bridge section bottom plate to be made, ensure that the device bottom rod is tightly attached to the bottom plate, and lay a stable foundation for subsequent operation. Then, based on the actual position of the device on the bottom plate, draw left and right side web lines along the predetermined direction with a stone pen. After drawing, compare these web lines with the distances of each part required by the construction drawing. Use measuring tools (such as a tape measure) to measure the distance between the web lines and the related positions specified in the drawing, and check whether there is a difference. If a difference is found, the reason needs to be further analyzed, and timely adjustment and correction is needed.

[0026] After the web line drawing and comparison are completed, start to hoist each part of the newly made bridge section in turn according to the drawn web lines. After hoisting each part, check the attachment of the part to the device vertical rod. The checking content includes whether the attachment surface is completely in contact, whether there is a gap, whether the part is aligned with the web line, etc. The gap of the attachment surface can be checked by using a plug gauge, and if the gap exceeds the allowed range, the part position needs to be adjusted again. At the same time, check the connection between each part to ensure that the connection is tight, such as checking whether the bolt connection is firm, whether the welded part is virtual welded, etc. Through checking and adjustment, the position of each hoisted part is accurate, and the connection between each part is tight, so as to guarantee the precision and quality of the newly made bridge section, and make it meet the requirements of the construction drawing.

[0027] The support rod 9 and the reinforcing rod 10 function to maintain the stability of the structure of the device during use, thereby ensuring the marking accuracy. During the bridge segment comparison and marking operation, the device needs to be kept in a stable state, and the diagonal brace can prevent the frame from deforming due to external factors (such as slight collision, shaking during operation, etc.), ensure that the relative positions of the various components of the device are fixed, and thereby ensure the accuracy of marking the positions of each part according to the comparison data, avoiding marking errors caused by deformation of the device.

[0028] At this point, those skilled in the art should recognize that although the present application has been shown and described in detail in this paper, many other variants or modifications conforming to the principles of the present application can be directly determined or deduced according to the content disclosed in the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variants or modifications.

Claims

1. A precision control device for non-integral pre-assembly of a steel bridge, characterized in that, The utility model provides a telescopic support device, including bottom bar, left side bar, right side bar and upper fixed bar, the both ends of bottom bar rotatable connection fixed bottom end of left side bar and right side bar, upper fixed bar can be slidably connected and fixed in the upper portion of left side bar and right side bar, right side bar and bottom bar between slidably connected fixed with support device, bottom bar, left side bar, right side bar and upper fixed bar are telescopic rod.

2. The precision control device for non-integral pre-assembly of steel bridge beams according to claim 1, characterized in that, The bottom bar includes a bottom bar sliding hole cross bar and a bottom bar drilled hole cross bar. The right end of the bottom bar sliding hole cross bar is a hollow structure. Four sides of the hollow structure part of the bottom bar sliding hole cross bar are provided with long strip-shaped fixing holes for the passage of loose bolts. The left end of the bottom bar drilled hole cross bar can slide in the hollow structure of the right end of the bottom bar sliding hole cross bar to increase or decrease the length of the bottom bar and fix the length of the bottom bar by bolts.

3. The precision control device for non-integral pre-assembly of steel bridge beams according to claim 2, characterized in that, The left side bar includes a left upper sliding hole cross bar and a left lower drilled hole cross bar. The left upper sliding hole cross bar is provided with a hollow structure. Four sides of the hollow structure part of the left upper sliding hole cross bar are provided with long strip-shaped fixing holes for the passage of loose bolts. The upper end of the left lower drilled hole cross bar can slide in the hollow structure of the left upper sliding hole cross bar to increase or decrease the length of the left side bar and fix the length of the left side bar by bolts.

4. The precision control device for non-integral pre-assembly of steel bridge beams according to claim 3, characterized in that, The right side bar includes a right upper sliding hole cross bar and a right lower drilled hole cross bar. The right upper sliding hole cross bar is provided with a hollow structure. Four sides of the hollow structure part of the right upper sliding hole cross bar are provided with long strip-shaped fixing holes for the passage of loose bolts. The upper end of the right lower drilled hole cross bar can slide in the hollow structure of the right upper sliding hole cross bar to increase or decrease the length of the right side bar and fix the length of the right side bar by bolts.

5. The precision control device for non-integral pre-assembly of steel bridge beams according to claim 4, characterized in that, The upper fixed bar includes an upper sliding hole cross bar and an upper drilled hole cross bar. The upper sliding hole cross bar is provided with a hollow structure. Four sides of the hollow structure part of the upper sliding hole cross bar are provided with long strip-shaped fixing holes for the passage of loose bolts. The left end of the upper drilled hole cross bar can slide in the hollow structure of the upper sliding hole cross bar to increase or decrease the length of the upper fixed bar and fix the length of the upper fixed bar by bolts.

6. The precision control device for non-integral pre-assembly of steel bridge beams according to claim 5, characterized in that, The support device includes right angle fixed support rods. The two ends of the support rods are slidably fixed in the hollow structures of the bottom bar and the right side bar by loose bolts.

7. The precision control device for non-integral pre-assembly of steel bridge beams according to claim 6, characterized in that, The support device further includes reinforcing rods. The two ends of the reinforcing rods are slidably fixed in the hollow structures of the bottom bar and the right side bar by loose bolts.

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