Eccentric half-width steel-concrete composite box girder integrated support pier support tooling system

Abstract

The present invention relates to an integrated support pier support fixture system for an eccentric half-width steel-concrete composite box girder capable of reliably supporting, transporting, and hoisting an eccentric half-width steel-concrete composite box girder measuring 32.25 meters in length, 17.8 meters in width, and weighing over 539 tons. The system comprises a support frame intermittently welded to the inclined bottom plate of the eccentric half-width steel-concrete composite beam, and steel support piers connected to the flat bottom plate of the eccentric half-width steel-concrete composite beam. Each support frame spans two or three transverse partitions, with four steel support piers bolted and integrated directly below the box girder partitions. The gap between the bottom adjustment plate of the support frame and the top plate of the steel support pier is controlled by adjusting bolts, and adjusting pads are added to adjust the height of the support beam section, thereby ensuring uniform force at each support point during the support process. Advantages: The system ensures the stability of the eccentric half-width steel-concrete composite box girder measuring 32.25 meters in length, 17.8 meters in width, and weighing over 539 tons during factory transportation, support, and shipping, as well as smooth installation and erection.

Description

Technical Field

[0001] The present invention relates to an eccentric half-width steel-concrete composite box girder integrated support pier bracket tooling system capable of reliably supporting, transporting and hoisting an eccentric half-width steel-concrete composite box girder with a length of 32.25m, a width of 17.8m and a weight exceeding 539 tons, and belongs to the field of manufacturing support tooling for super-large eccentric half-width steel-concrete composite box girders. Background Art

[0002] The super-large eccentric half-width steel-concrete composite box girder is a new type of structure, and there is currently no technical application for factory manufacturing. The super-large eccentric half-width steel-concrete composite beam has the characteristics of large structural dimensions, heavy segment mass, structural eccentricity and high structural dimension manufacturing precision. Its manufacturing mainly faces the following manufacturing difficulties: First, the structural dimensions are too long, the mass is too heavy, the structure is eccentric, the segment manufacturing precision and the matching precision with the adjacent segments are high, and precision control is a manufacturing difficulty; second, the concrete prefabricated bridge deck is 30~50 tons, and due to the large span of the total assembly line, the lifting weight of a single hoisting crane cannot meet the lifting requirements. The hoisting, assembly and superposition control of the concrete prefabricated bridge deck are manufacturing difficulties. Difficulties: Third, the structure is too long, too heavy, and eccentric. After the segment is assembled, how to remove the segment is a manufacturing difficulty; Fourth, the transportation and support of the eccentric half-width steel-concrete composite box girder after it is removed is a difficulty in the manufacturing process; Fifth, during the wet joint casting construction, it is difficult to ensure that the box mouth size of the finished segment after casting is consistent with that at the time of assembly; Sixth, due to the excessive length, overweight, and eccentricity of the structure, during the segment loading and transportation, ensuring transportation safety and ensuring smooth lifting of the segment at the construction site is one of the difficulties that need to be considered in the manufacturing process. Summary of the Invention

[0003] Design purpose: In view of the manufacturing difficulties in the background technology, an eccentric half-width steel-concrete composite box girder integrated support pier bracket tooling system is designed to reliably support, transport and hoist the eccentric half-width steel-concrete composite box girder with a length of 32.25m, a width of 17.8m and a weight of more than 539 tons.

[0004] Design Solution: The ultra-large eccentric half-width steel-concrete composite box girder mentioned in this invention is 32.25m long, 17.8m wide, and weighs over 539 tons. This presents challenges in all aspects of factory manufacturing, including on-site transportation, support, and shipping. To overcome the challenges of factory manufacturing and transportation of this ultra-large eccentric steel-concrete composite box girder, this invention developed an integrated support pier support fixture system to support the eccentric, ultra-heavy half-width steel-concrete composite box girder segments. This integrated support pier support fixture system and modular multi-faceted stools are used to support the segments, ensuring stable support during transportation of the eccentric segments.

[0005] (1) According to the center of gravity position of the eccentric half-width steel-concrete composite beam section, an integrated support pier bracket fixture system was developed. The integrated support pier bracket fixture system includes a support frame connected to the inclined bottom plate of the half-width steel-concrete composite beam and a steel support pier connected to the flat bottom plate. Each support frame spans two or three transverse partitions, and four or six steel support piers are bolted and integrated directly below the box beam partition. The gap between the bottom adjustment plate of the support frame and the top plate of the steel support pier is controlled by adjusting the bolts and the adjustment pad is added to adjust the height of the support beam section, so as to ensure that each support point is evenly stressed during the support process.

[0006] (2) After the half-width eccentric steel-concrete composite box girder section is produced, the developed integrated support pier support fixture system is first used to support the temporarily connected left and right half-width steel-concrete composite box girder segments. After ensuring that the support points are evenly stressed, the temporary matching parts of the middle flange plates, bottom plates, partitions and temporary reinforcement plates of the left and right half-width steel-concrete composite beam sections are removed to separate the left and right eccentric half-width steel-concrete composite box girders.

[0007] Technical solution: An integrated support pier bracket fixture system for on-site transportation, support and maintenance of an eccentric half-width steel-concrete composite box girder structure with a length of 32.25m, a width of 17.8m and a weight of more than 539 tons. The integrated support pier bracket fixture system includes a support frame that is intermittently welded to the inclined bottom plate of the eccentric half-width steel-concrete composite beam, and steel support piers connected to the flat bottom plate of the eccentric half-width steel-concrete composite beam. Each support frame spans two or three transverse partitions, and four or six steel support piers are bolted together directly below the box girder partition. The gap between the bottom adjustment plate of the support frame and the top plate of the steel support pier is controlled by adjusting the bolted bolts, and the height of the support beam section is adjusted by adding an adjustment pad, so as to ensure that each support point is evenly stressed during the support process.

[0008] Compared with the background technology, the integrated support pier bracket tooling system of the present invention ensures the stability of the eccentric half-width steel-concrete composite box girder with a length of 32.25m, a width of 17.8m and a weight of more than 539 tons during transportation, support and shipping within the factory, as well as smooth installation and erection during the process of transporting and supporting the eccentric steel-concrete composite beam section. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a schematic diagram of the integrated support pier bracket tooling system and the support transportation diagram.

[0010] Figure 2 yes Figure 1 Top view schematic diagram.

[0011] Figure 3 This is a schematic diagram of transporting an eccentric half-width steel-concrete composite beam.

[0012] Figure 4 It is a three-view diagram of a multi-faceted support pier. DETAILED DESCRIPTION

[0013] The following is combined with Figures 1 to 4 The present invention is further described.

[0014] The integrated support pier bracket tooling system 9 includes a support frame 91 intermittently welded to the inclined bottom plate of the half-width steel-concrete composite beam 2, and a steel support pier 92 connected to the flat bottom plate. Each support frame 91 spans two or three cross partitions, and four or six steel support piers 92 are bolted to the integrated cover directly below the box beam partition. The gap between the bottom adjustment plate of the support frame 91 and the top plate of the steel support pier 92 is controlled by adjusting the bolted bolts and the adjustment pad 93 is added to adjust the height of the support beam section, so as to ensure that each support point is evenly stressed during the support process.

[0015] After the half-width eccentric steel-concrete composite box girder section is produced, the developed integrated support pier bracket tooling system 9 is first used to support the temporarily connected left and right half-width steel-concrete composite box girder segments 2. After ensuring that the support points are evenly stressed, the middle flange plates, bottom plates, partition temporary matching parts 4 and temporary reinforcement plates 7 of the left and right half-width steel-concrete composite beam sections 2 are removed to separate the left and right eccentric half-width steel-concrete composite box girders.

[0016] 10. Use four beam transport flat cars 8 with a capacity of more than 200 tons in parallel, with two beam transport cars in front and behind each lane on each side. The four cars simultaneously lift the height of the supported beam section to ensure that the half-width beam section 2 is transported synchronously after the supporting pier is off the ground. Ensure that the four cars are evenly stressed and support is stable. The support frame 91 and the integrated supporting pier 92 are transported together with the beam.

[0017] The support pier fixture system 9 and modular multi-faceted support piers 12 support the segments, ensuring stable support of the beam segments during shipping and preventing deformation that could affect the quality of the bridge deck and the overall dimensions of the segments. The modular multi-faceted support piers 12 are bolted together and supported at the side web bulkheads.

[0018] The combined multi-faceted support pier (12) is composed of a plurality of independent support piers, each of which is composed of a support steel (121) and six face panels (122). The six face panels are provided with four bolt connection holes (123). The independent support piers can be freely combined by bolt connection through the six face bolt holes (123). Due to the different length, width and height dimensions of the support piers, different support heights of the combined multi-faceted support piers (12) can be achieved by adjusting the bolt connection combination of different faces, so as to achieve a support height suitable for the beam section 2 and achieve the purpose of supporting the beam section 2.

[0019] Before hoisting the segment at the construction site, remove the connecting welds between the support frame 91 of the support pier bracket fixture system 9 at the inclined bottom plate and the inclined bottom plate of the half-width steel-concrete composite beam segment 2, and remove the connecting parts between the support pier 92 at the flat bottom plate and the bottom plate to ensure that it is separated from the inclined bottom plate and the bottom plate. At this time, the eccentric beam segment is supported by the combined multi-faceted support pier 12 and the support pier 92 at the flat bottom plate position to ensure smooth erection and installation of the segment.

[0020] It should be understood that although the above embodiments provide a relatively detailed textual description of the design ideas of the present invention, these textual descriptions are only simple textual descriptions of the design ideas of the present invention, rather than limitations on the design ideas of the present invention. Any combination, addition or modification that does not exceed the design ideas of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An integrated support pier support fixture system for in-plant transportation, support, and shipping of an eccentric half-width steel-concrete composite box girder structure, 32.25 m long, 17.8 m wide, and weighing over 539 tons, characterized by: The integrated support pier bracket fixture system (9) includes a support frame (91) intermittently welded to the inclined bottom plate of the eccentric half-width steel-concrete composite beam (2), and a steel support pier (92) connected to the flat bottom plate of the eccentric half-width steel-concrete composite beam (2). Each support frame (91) spans two or three transverse partitions, and four steel support piers (92) are bolted and integrated directly below the box beam partition. The gap between the bottom adjustment plate of the support frame (91) and the top plate of the steel support pier (92) is controlled by adjusting the bolts and an adjustment pad (93) is added to adjust the height of the support beam section, so as to ensure that each support point is evenly stressed during the support process; the combined multi-faceted support pier (12) supports the segment support At the inclined edge of the eccentric half-width steel-concrete composite beam (2), a combined multi-faceted support pier (12) is composed of a plurality of independent support piers, each of which is composed of a supporting steel section (121) and six face panels (122). The six face panels are provided with four bolt connection holes (123). The independent support piers are freely combined by bolt connection through the six face bolt connection holes (123). Due to the different length, width and height dimensions of the support piers, different support heights of the combined multi-faceted support piers (12) can be achieved by adjusting the bolt connection combination of different faces, so as to achieve a support height suitable for the eccentric half-width steel-concrete composite beam (2) and achieve the purpose of supporting the eccentric half-width steel-concrete composite beam (2).

2. The integrated support pier support fixture system for in-factory transport, support, and shipping of an eccentric half-width steel-concrete composite box girder structure having a length of 32.25 m, a width of 17.8 m, and a weight exceeding 539 tons according to claim 1, characterized in that: Before the segment is hoisted at the construction site, the connecting welds between the support frame (91) of the integrated support pier bracket fixture system (9) at the inclined bottom plate and the inclined bottom plate of the eccentric half-width steel-concrete composite beam (2) are released, and the connecting parts between the support pier (92) at the flat bottom plate and the bottom plate are released to ensure that it is separated from the inclined bottom plate and the bottom plate. At this time, the eccentric beam segment is supported by the combined multi-faceted support pier (12) and the support pier (92) at the flat bottom plate position to ensure smooth erection and installation of the segment.

Images