Incremental launching construction deviation rectifying device applied to variable-height curved beam

Abstract

The utility model relates to an incremental launching construction deviation rectifying device applied to a variable-height curve beam, which comprises a variable-height supporting system, a walking type incremental launching system, a transverse deviation rectifying device, a vertical lifting system, a transverse deviation rectifying force transmission system and a multi-linkage intelligent control system, wherein the height-variable supporting system and the walking type pushing systems are correspondingly arranged at the beam bottom of a beam body, the walking type pushing systems are arranged on the two sides of the height-variable supporting system, and the transverse deviation rectifying device vertical lifting system is arranged at the bottom of the transverse deviation rectifying force transmission system. The transverse deviation rectifying force transmission system corresponds to the position of a side web of the beam body, and the multi-linkage intelligent control system is connected with and controls the working states of the height-variable supporting system, the walking type pushing system, the transverse deviation rectifying device vertical lifting system and the transverse deviation rectifying force transmission system. The large-span variable-height curved steel box girder incremental launching device has the advantages that incremental launching construction of the large-span variable-height curved steel box girder is achieved, and the large-span variable-height curved steel box girder incremental launching device has good applicability to bridges crossing complex water areas and roads.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a jacking construction deviation correction device used for variable-height curved beams. Background Art

[0002] Since its application, bridge pushing technology has been increasingly used in crossing rivers, valleys and busy lines. There are two types of pushing technology: multi-point pushing and single-point pushing. Multi-point pushing usually does not require the installation of a slideway and has a wider application range than single-point pushing.

[0003] At present, multi-point jacking is usually used in the construction of bridges of equal height. The multi-point jacking of bridges of variable height has always been a difficult construction process in the industry because the fixed support points cannot match the changes in beam height, and there are very few related cases. At the same time, there are very few multi-point jacking processes for variable height box girders on curves. Summary of the Invention

[0004] The purpose of this utility model is to provide a jacking construction correction device for variable height curved beams based on the above-mentioned deficiencies of the existing technology, which solves the jacking problem of large-span variable height curved steel beams. The utility model has strong applicability and is worthy of promotion.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] A device for correcting deviations in jacking construction used for variable-height curved beams, characterized in that it includes a variable-height support system, a walking-type jacking system, a vertical elevation system for a lateral correction device, a lateral correction force transmission system, and a multi-linkage intelligent control system, wherein the variable-height support system and the walking-type jacking system are both arranged at positions corresponding to the bottom of the beam body, the walking-type jacking system is arranged on both sides of the variable-height support system, the vertical elevation system for the lateral correction device is arranged at the bottom position of the lateral correction force transmission system, the lateral correction force transmission system corresponds to the side position of the beam body, and the multi-linkage intelligent control system connects and controls the working states of the variable-height support system, the walking-type jacking system, the vertical elevation system for the lateral correction device, and the lateral correction force transmission system.

[0007] The variable height support system includes a wedge-shaped angle steel at the bottom of the beam, a top steel plate, a double row of I-beam support short columns and a vertical jack, wherein the double row of I-beam support short columns are installed on the vertical jack, the top steel plate is arranged on the double row of I-beam support short columns, and the wedge-shaped angle steel at the bottom of the beam is arranged on the top steel plate.

[0008] A rubber bearing is provided between the double-row I-steel supporting short columns and the top steel plate.

[0009] The vertical lifting system of the lateral correction device includes a jack, an I-beam, an upper support system, and a lower support system, wherein the jack is arranged on the lower support system, the I-beam is arranged on the jack, the upper support system is arranged on the I-beam, and the upper support system is connected to the lateral correction force transmission system.

[0010] The lateral correction force transmission system includes upper and lower horizontal jacks, a channel steel reaction frame, and a wedge-shaped pad, wherein the channel steel reaction frame is connected to the upper support system of the vertical lifting system of the lateral correction device, the upper and lower horizontal jacks are connected to the channel steel reaction frame, and the wedge-shaped pad is arranged at the pushing end position of the upper and lower horizontal jacks.

[0011] A rubber pad is provided between the upper and lower horizontal jacks and the wedge-shaped pad.

[0012] The multi-linkage intelligent control system includes sensors arranged at the bottom and both sides of the beam and a main controller. The main controller controls the operation of the variable height support system, the walking pushing system, the vertical lifting system of the lateral correction device, and the lateral correction force transmission system according to the monitoring data of the sensors.

[0013] The utility model has the advantages of realizing the jacking construction of large-span variable-height curved steel box girders and having good applicability for bridges spanning complex water areas and highways. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the elevation layout of the utility model;

[0015] Figure 2 This is the floor plan of the utility model;

[0016] Figure 3 This is an elevation view of the variable height support system of the present utility model;

[0017] Figure 4 This is an elevation view of the transverse deviation correction system of the present invention;

[0018] Figure 5 This is a vertical layout diagram of the second embodiment provided by the present utility model;

[0019] Figure 6 This is a vertical layout diagram of Example 3 provided by the present utility model. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:

[0021] like Figure 1-6As shown, the symbols in the figure respectively represent: vertical variable height support system 1, walking type pushing system 2, vertical lifting system of lateral correction device 3, lateral correction force transmission system 4, multi-linkage intelligent control system 5, main beam web edge 6, pushing bracket 7;

[0022] Beam bottom wedge angle steel 11, top steel plate 12, rubber bearing 13, double-row I-steel support short columns 14, vertical jack 15, box beam bottom plate 16, lower bracket 17;

[0023] Jack 31, I-beam beam 32, upper support system 33, lower support system 34;

[0024] Upper and lower horizontal jacks 41 , channel steel reaction frames 42 , rubber pads 43 , wedge-shaped pads 44 , horizontal slides 45 , laterally movable triangular brackets 46 , and inner and outer double vertical slide steel reaction frames 47 .

[0025] Embodiment: The present invention is mainly composed of 5 units, the first is a vertical variable height support system 1, the second is a walking pushing system 2, the third is a lateral correction device vertical lifting system 3, the fourth is a lateral correction force transmission system 4, and the fifth is a multi-linkage intelligent control system 5.

[0026] The vertical variable-height support system 1 comprises a wedge-shaped angle steel 11 at the bottom of the beam, welded from two pieces of angle steel. The ribs are beveled into triangles and welded to the box beam bottom plate 16, thereby locally leveling the bottom plate. Rubber bearings 13 are then attached to the flanges to distribute the load evenly. Below these rubber bearings 13 are two rows of I-beam support studs 14. Below these two rows of I-beam support studs 14 are two rows of vertical jacks 15. As these jacks move up and down, they achieve support for varying beam heights at different times during the jacking process.

[0027] The walking longitudinal pushing system 2 is similar to a conventional walking longitudinal pushing device, but in this embodiment, the vertical range of the walking longitudinal pushing system 2 is increased and the lower part is relatively wider, thereby meeting the large height variation range and stability issues of the lower part.

[0028] The vertical lifting system 3 of the lateral correction device is composed of two jacks 31, an I-beam 32, an upper support system 33, and a lower support system 34. The jacks 31 are fixed to the lower support system 34, and the I-beam 32 is fixed on the jacks 31 and moves up and down with the jacks 31. The upper support system 33 is welded to the I-beam 32. Its purpose is to rise and fall laterally as the web height changes.

[0029] The lateral force-transmission system 4 includes two horizontal jacks with different ranges: upper and lower horizontal jacks 41. The lower jack has a greater stroke than the upper jack, ensuring more balanced horizontal force on the steel beams supporting the diagonal webs. The lateral force-transmission system 4 is fixed to the vertical elevation system 3 of the lateral correction device to accommodate height changes.

[0030] In this embodiment, rubber pads 43 are arranged at the ends of the upper and lower horizontal jacks 41. The rubber pads 43 are circular and can be replaced by supports. For the inclined web, the pads can be composed of wedge-shaped steel and rubber pads.

[0031] In this embodiment, a channel steel reaction frame 42 is positioned behind the upper and lower horizontal jacks 41 and secured to the lower upper support system 33. The channel steel reaction frame 42 can also be braced to secure it to the lower support, thereby maintaining the stability of the variable height correction unit. A slideway can be positioned on the channel steel reaction frame 42 and greased, providing a reaction force while allowing the dual push unit to slide up and down against the channel steel reaction frame 42.

[0032] The multi-linkage intelligent control system 5 adopts wireless transmission and utilizes the principle of radar reflection. Sensors are arranged at the bottom and sides of the beam. The main controller reflects the light waves, which are then received by the sensors to determine the real-time position of each monitoring point of each steel beam, and then fed back to the main control box to control the operation of each jack and realize automated management of the entire process.

[0033] In this embodiment, the sensors arranged in the multi-linkage intelligent control system 5 can also be used as permanent monitoring devices during the bridge operation phase to monitor the displacement and deflection of the steel box girder.

[0034] During construction, after the main beam is assembled, each unit is set up in advance and is commanded by the master controller of the multi-linkage intelligent control system 5, which provides real-time feedback on various data and enables data visualization for construction. This can greatly reduce the number of on-site monitoring workers and save manpower.

[0035] When applied, this embodiment includes the following steps:

[0036] The scaffolding is set up on site. The scaffolding is the jacking scaffolding 7 for jacking construction, constructed using steel pipe columns and angle steel. A double row of transverse I-beams is placed on top of the steel pipe columns. A longitudinal lower support 17 and lower support system 34 are then installed at the bottom of each unit. At this point, the jacking scaffolding is complete. During construction, different numbers of supports can be installed to ensure stable support and jacking effectiveness, depending on the span. The form of the support is similar to the above.

[0037] Arrange the beam bottom wedge angle steel 11 at the box beam bottom plate 16 position of the corresponding beam, weld two angle steels into a T shape, or directly use T-shaped steel, cut the rib position into a triangle or trapezoid, and weld it to the outer side of the box beam bottom plate 16, and then weld the top steel plate 12 at the wing plate position.

[0038] Arrange the jack 15 and the I-beam 14 on the bracket 17, weld the top of the I-beam 14 and the jack 17, and stick a circular rubber support 13 on the upper end of the I-beam. A square rubber support can also be used, and the size should be adapted to the size of the I-beam 14 wing plate.

[0039] The walking support unit 2 is arranged to perform walking pushing on the beam body, wherein angle steel 11 and steel plate pad 12 are also arranged on the upper part of the walking pushing unit 2 .

[0040] Lateral leveling units 3 and 4 are arranged at the corresponding positions on the side surfaces 6 of the web, and two vertical jacks 31 are arranged on the bracket longitudinal beam 34, and then double-jointed I-beams 32 are arranged thereon, and then double-row angle steel frames 33 are welded thereon, so that the bracket system composed of I-beams 32 and angle steel frames 33 can move up and down with the jacks 31.

[0041] Then, on top of the I-beam 34, place the jack channel steel reaction seat 42. Note that the channel steel reaction seat 42 has a reserved groove, is polished smooth, and greased during construction. Two rows of horizontal jacks 41 are placed on top of the bracket angle 33. The lower row of jacks has a larger range. The jacks 41 are welded to the bracket 33 so that they can move up and down with the bracket 33. A wedge-shaped steel plate rubber bearing 44 is placed at the front end of the jack 41.

[0042] Optical wireless sensors are placed at the corresponding positions on the lower edge and side of the main beam. Using photoelectric transmission and receiving real-time reflected signals, the position and movement of the main beam can be monitored in real time.

[0043] The real-time position signals collected above are centrally processed and analyzed by the multi-link intelligent control system 5, and then the feedback instructions are transmitted to the vertical variable height support system 1, the walking jacking system 2, the lateral deviation correction device vertical lifting system 3, and the lateral deviation correction transmission system 4 for cooperation. Specifically, as the jacking instruction is issued, the walking jacking system 2 first lifts the beam, then moves forward and falls to be supported by the vertical variable height support system 1, and then continues to be lifted by the walking jacking system 2. At this time, the beam height of the main beam changes at this jacking bracket, and the jack of the vertical variable height support system 1 is lowered accordingly. After the beam falls, it lands in the corresponding position to maintain the balance of the main beam. At the same time, the lateral deviation correction device vertical lifting system 3 and the lateral deviation correction transmission system 4 apply different horizontal forces to the main beam as the jacking advances, completing the lateral deviation correction of the curved beam, thereby completing the intelligent jacking operation of the entire variable height curved steel box beam.

[0044] like Figure 5 As shown, the system is also applicable to main beams with straight webs. At the same time, the horizontal jacks can be used in one row, and there is no need to set up two jacks with different ranges at the upper and lower levels.

[0045] like Figure 6 As shown, a horizontal slide 45 and a temporary locking device can also be arranged under the vertical lifting system 3 of the lateral correction device and the lateral correction force transmission system 4, so that it can be more suitable for pushing the main beam with large changes in the bottom plate width or large slope of the box beam web.

[0046] The horizontal slideway 45 of the correction system can be made of angle steel and polished flat, and the position of the horizontal slideway 45 of the correction system corresponds to that of the jack 31.

[0047] The inner and outer double vertical slide steel reaction frame 47 also corresponds to the position of the horizontal slide 45 of the correction system. The inner and outer double vertical slide steel reaction frame 47 is made of double-channel steel, with slides at the front and back, and the outer slide is a one-way slide.

[0048] The laterally movable triangular bracket 46 is a diagonal brace for the inner and outer double vertical slide steel reaction frame 47. The lower end of the laterally movable triangular bracket 46 is hinged and fixed, and the upper end of the laterally movable triangular bracket 46 can slide on the outer unidirectional slide of the inner and outer double vertical slide steel reaction frame 47. The sliding direction is unidirectional sliding from top to bottom, and a locking structure is provided from bottom to top to ensure the stability of the structure after it is in place.

[0049] Although the above embodiments have described the concepts and embodiments of the present invention in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, so they are not described here one by one.

Claims

1. A device for correcting deviation during jacking construction of variable-height curved beams, characterized by: It includes a variable height support system, a walking pushing system, a vertical lifting system for a lateral deviation correcting device, a lateral deviation correcting force transmission system and a multi-linkage intelligent control system, wherein the variable height support system and the walking pushing system are both arranged corresponding to the bottom position of the beam body, the walking pushing system is arranged on both sides of the variable height support system, the vertical lifting system for the lateral deviation correcting device is arranged at the bottom position of the lateral deviation correcting force transmission system, the lateral deviation correcting force transmission system corresponds to the web position of the beam body, and the multi-linkage intelligent control system connects and controls the working states of the variable height support system, the walking pushing system, the vertical lifting system for the lateral deviation correcting device and the lateral deviation correcting force transmission system.

2. The device for correcting deviation during jacking construction of variable-height curved beams according to claim 1, characterized in that: The variable height support system includes a wedge-shaped angle steel at the bottom of the beam, a top steel plate, a double row of I-beam support short columns and a vertical jack, wherein the double row of I-beam support short columns are installed on the vertical jack, the top steel plate is arranged on the double row of I-beam support short columns, and the wedge-shaped angle steel at the bottom of the beam is arranged on the top steel plate.

3. The device for correcting deviation during jacking construction of variable-height curved beams according to claim 2, characterized in that: A rubber bearing is provided between the double-row I-steel supporting short columns and the top steel plate.

4. The device for correcting deviation during jacking construction of variable-height curved beams according to claim 1, characterized in that: The vertical lifting system of the lateral correction device includes a jack, an I-beam, an upper support system, and a lower support system, wherein the jack is arranged on the lower support system, the I-beam is arranged on the jack, the upper support system is arranged on the I-beam, and the upper support system is connected to the lateral correction force transmission system.

5. The device for correcting deviation during jacking construction of variable-height curved beams according to claim 1, characterized in that: The lateral correction force transmission system includes upper and lower horizontal jacks, a channel steel reaction frame, and a wedge-shaped pad, wherein the channel steel reaction frame is connected to the upper support system of the vertical lifting system of the lateral correction device, the upper and lower horizontal jacks are connected to the channel steel reaction frame, and the wedge-shaped pad is arranged at the pushing end position of the upper and lower horizontal jacks.

6. The device for correcting deviation during jacking construction of variable-height curved beams according to claim 5, characterized in that: A rubber pad is provided between the upper and lower horizontal jacks and the wedge-shaped pad.

7. The device for correcting deviation during jacking construction of variable-height curved beams according to claim 1, characterized in that: The multi-linkage intelligent control system includes sensors arranged at the bottom and both sides of the beam and a main controller. The main controller controls the operation of the variable height support system, the walking pushing system, the vertical lifting system of the lateral correction device, and the lateral correction force transmission system according to the monitoring data of the sensors.

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