Auxiliary matching and adjusting device for large-segment tangent assembling

Abstract

The utility model discloses an auxiliary matching and adjusting device for large-segment tangent assembly in the field of bridge construction control. The auxiliary matching and adjusting device comprises a hinge, a lifting point, a jack at the top of a bracket, a laser emitting device and a target, an auxiliary matching system composed of the hinge, the lifting point and the jack at the top of the support ensures that the end of the bridge section to be assembled and the installed bridge section are located on the same plane, and the hinge can ensure that the bridge section to be assembled rotates around the end of the hinge. The laser emission device and the height-adjustable target form a laser measurement and control system to assist in determining the tangent line splicing position, so that the tangent line splicing of the component is ensured, and a splicing included angle is avoided; therefore, the influence of external construction load and the front construction stage can be neglected, and the tangent splicing position of the next construction component can be simply and conveniently determined, so that the splicing control precision of the bridge rod piece is effectively improved.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction control, in particular to an auxiliary matching and adjusting device for large segment tangent assembly. Background Art

[0002] As the span of bridges gradually increases, the size of the installation segments of bridge components also gradually increases, and large segment assembly has become an important means of current large-span bridge construction. In order to ensure the smoothness of the line shape and the uniformity of the internal force distribution, when each component segment is installed, it is often required that there is no relative angle between the segments, that is, the segment to be installed is located on the tangent of the installed segment when assembled, which is called tangent assembly.

[0003] However, in actual engineering practice, it is found that due to the influence of the deadweight of the structure and various construction loads, the actual linear shape of the installed segments is constantly changing during the construction process. In conventional assembly control methods, finite element simulation calculations or on-site inclination angle measurements are often used to obtain the inclination change of the installed segments, thereby realizing the tangent assembly of the segments to be installed. However, the simulation calculation process is not only cumbersome, but also limited by the deviation between the simulation model and the actual structure in terms of structural stiffness, weight and load, and the calculation accuracy often has large errors. In addition, the on-site inclination angle measurement is difficult to guarantee due to the complexity of the on-site measurement environment.

[0004] In summary, the shortcomings of existing control methods will affect the accuracy of large segment tangent assembly, and due to the increase in segment length, the relative angle of segment assembly will amplify the construction error, causing the deviation between the completed bridge line shape and the designed line shape to exceed the allowable value of the relevant construction acceptance specifications, affecting the construction quality and structural safety. Therefore, it is an urgent problem to propose a reasonable and reliable installation method or device that takes into account the practical value of the project. Summary of the invention

[0005] The utility model aims to provide an auxiliary matching and adjusting device for tangential assembly of large segments, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An auxiliary matching and adjustment device for tangential assembly of large segments comprises a hinge, a hanging point, a jack on the top of a bracket, a laser emitting device and a target. The auxiliary matching system composed of the hinge, the hanging point and the jack on the top of the bracket ensures that the end of the bridge segment to be assembled is in the same plane as the installed bridge segment, and the hinge can ensure that the bridge segment to be assembled rotates around its end, and the laser measurement and control system composed of the laser emitting device and the target assists in determining the tangent assembly position. When the bridge segment to be assembled rotates until the laser hits the bull's eye of the target, it can be considered that the tangent assembly position has been reached, thereby ensuring tangent assembly of components without the occurrence of assembly angles.

[0008] As a further solution of the utility model: the hinge is composed of four rigid brackets welded to the upper surface of the segment and a rotating shaft, and the end of the rotating shaft is welded to the two outermost rigid brackets; the hinge serves as a connecting device between the installed bridge segment and the bridge segment to be installed, and is located on the upper surface of the segment, which can not only fix the relative position of the segment end on the upper surface, but also allow the bridge segment to be installed to rotate around the end; the jacks on the lifting point and the top of the bracket are used to control the spatial position of the assembled segment, translate the end of the bridge segment to be assembled to be in the same plane as the installed bridge segment, and after the hinge is connected, rotate the bridge segment to be assembled until it reaches the installation position for tangent assembly.

[0009] As a further solution of the utility model: the laser emitting device and the target are respectively located on the upper surface of the installed bridge segment and the bridge segment to be installed, and the center lines of the facades are perpendicular to the upper surfaces of the segments. The laser emitting device and the target should be as close to the end as possible to ensure that the emitted laser is consistent with the inclination angle of the end.

[0010] As a further solution of the utility model: the target can be adjusted in height to ensure that the center height of the target is consistent with the laser height of the laser emitting device. When the assembled bridge segment is rotated until the laser hits the center of the target, it is considered that the tangent assembly position has been reached.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model does not need to consider the influence of the construction process, structure and load on the construction status in the pre-construction stage, nor does it need to perform complex finite element simulation calculations. The tangent assembly position of the bridge segment to be installed can be accurately located through a simple device, effectively improving the efficiency and accuracy of the tangent assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic elevation diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the hinge structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the function of the laser emitting device and the target elevation in the utility model.

[0016] In the figure: 1. Assembled bridge segment; 2. Bridge segment to be assembled; 3. Hinge; 4. Lifting point; 5. Jack on the top of the bracket; 6. Laser emitting device; 7. Target; 201. Bridge segment to be assembled that has been adjusted into place; 202. Bridge segment to be assembled that has not been adjusted into place; 301. Rigid corbel; 302. Rotating shaft. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figures 1 to 3 In an embodiment of the utility model, an auxiliary matching and adjustment device for tangential assembly of large segments comprises a hinge (3), a suspension point (4), a jack (5) on the top of a bracket, a laser emitting device (6) and a target (7). The auxiliary matching system composed of the hinge (3), the suspension point (4) and the jack (5) on the top of the bracket ensures that the end of the bridge segment (2) to be assembled is in the same plane as the installed bridge segment (1), and the hinge can ensure that the bridge segment (2) to be assembled rotates around its end, and the laser measurement and control system composed of the laser emitting device (6) and the target (7) assists in determining the tangential assembly position, thereby ensuring the tangential assembly of the components without the occurrence of assembly angles.

[0019] The hinge (3) is composed of four rigid brackets (301) welded to the upper surface of the segment and a rotating shaft (302). After the segment ends are aligned, the rotating shaft ends are welded to the two outermost rigid brackets. The hinge (3) serves as a connecting device between the installed bridge segment (1) and the bridge segment (2) to be installed. It is located on the upper surface of the segment and can fix the relative position of the segment end to the upper surface and allow the bridge segment (2) to be installed to rotate around the end.

[0020] The lifting point (4) and the jack (5) on the top of the bracket are used to control the spatial position of the assembled segment, translate the end of the bridge segment (2) to be assembled to be in the same plane as the installed bridge segment (1), and after the hinge (3) is connected, rotate the bridge segment (2) to be assembled until it reaches the installation position for tangent assembly.

[0021] The laser emitting device (6) and the target (7) are respectively located on the upper surface of the installed bridge segment (1) and the bridge segment to be installed (2), and the center lines of the facades are perpendicular to the upper surface of the segments. The laser emitting device (6) and the target (7) should be as close to the end as possible to ensure that the emitted laser has the same inclination angle as the end.

[0022] The height of the target (7) can be adjusted to ensure that the vertical distance between the center of the target and the upper surface of the segment is equal to the vertical distance between the laser of the laser emitting device (6) and the upper surface of the segment. The bridge segment to be assembled (202) that has not been adjusted into place is rotated until the laser hits the bull's eye of the target (7) and is considered to have reached the tangent assembly position. At this time, the bridge segment to be assembled (2) is called a bridge segment to be assembled (201) that has been adjusted into place.

[0023] Working principle: When in use, the bridge segment (2) to be installed is first adjusted by the lifting point (4) and the jack (5) on the top of the bracket so that the upper surface of the end of the bridge segment (2) to be installed is aligned with the end of the installed bridge segment, that is, first ensure that the upper surface of the end of the segment is in the tangent assembly position, and insert the rotating shaft (302) into the rigid bracket (301) and weld it to the two outermost rigid brackets; the bridge segment (2) to be installed is adjusted by the lifting point (4) and the jack (5) on the top of the bracket to rotate until the laser emitted by the laser emitting device (6) hits the target (7), and at this time the bridge segment (2) to be installed reaches the tangent assembly position.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An auxiliary matching and adjustment device for tangential assembly of large segments, comprising a hinge (3), a hanging point (4), a jack (5) on the top of a bracket, a laser emitting device (6), and a target (7), characterized in that: The auxiliary matching system composed of the hinge (3), the suspension point (4), and the jack (5) on the top of the bracket ensures that the end of the bridge segment (2) to be assembled is in the same plane as the installed bridge segment (1), and the hinge can ensure that the bridge segment (2) to be assembled rotates around its end, and the laser measurement and control system composed of the laser emitting device (6) and the target (7) assists in determining the tangent assembly position, ensuring tangent assembly of the components without the occurrence of assembly angles.

2. The auxiliary matching and adjustment device for large segment tangent assembly according to claim 1, characterized in that: The hinge (3) is a connecting device between the installed bridge segment (1) and the bridge segment (2) to be installed, and is located on the upper surface of the segment. It can fix the relative position of the segment end and the upper surface, and allow the bridge segment (2) to be installed to rotate around the end. The hinge (3) is composed of four rigid brackets (301) welded to the upper surface of the segment and a rotating shaft (302). After the segment ends are aligned, the rotating shaft end is welded to the two outermost rigid brackets. The hanging point (4) and the jack (5) on the top of the bracket are used to control the spatial position of the assembled segment, translate the end of the bridge segment (2) to be assembled to be in the same plane as the installed bridge segment (1), and after the hinge (3) is connected, rotate the bridge segment (2) to be assembled until it reaches the installation position of tangent assembly.

3. The auxiliary matching and adjustment device for large segment tangent assembly according to claim 1, characterized in that: The laser emitting device (6) and the target (7) are respectively located on the upper surface of the installed bridge segment (1) and the bridge segment to be installed (2), and the center lines of the facades are perpendicular to the upper surfaces of the segments. The laser emitting device (6) and the target (7) should be as close to the end as possible to ensure that the emitted laser has the same inclination angle as the end.

4. The auxiliary matching and adjustment device for large segment tangent assembly according to claim 1, characterized in that: The target (7) can be adjusted in height to ensure that the vertical distance between the center of the target and the upper surface of the segment is equal to the vertical distance between the laser of the laser emitting device (6) and the upper surface of the segment. The unadjusted bridge segment (202) to be assembled is rotated until the laser hits the center of the target. It is considered that the tangent assembly position has been reached. At this time, the bridge segment (2) to be assembled is called the adjusted bridge segment (201) to be assembled.

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