Ultra-long steel cross beam construction site assembling tool

Abstract

A super-long steel cross beam construction site assembling tool comprises a plurality of supporting longitudinal beams fixed to the ground side by side, a supporting base is fixed to the tops of the supporting longitudinal beams in the longitudinal direction, a plurality of limiting plates are arranged on the top face of the supporting base at intervals in the longitudinal direction, and a limiting groove is formed between every two adjacent limiting plates; a plurality of positioning plates are horizontally arranged on the outer sides of the supporting longitudinal beams at the two ends, the inner ends of the positioning plates are fixed to the outer sides of the supporting bases, and the top faces of the positioning plates and the top faces of the supporting bases are equal in height. The longitudinal width of the positioning plate is smaller than the distance between the adjacent limiting plates, and positioning holes and connecting holes corresponding to the steel cross beams to be assembled are formed in the positioning plate. Pins are inserted into the positioning holes, and bolt pairs are installed in the connecting holes. The utility model aims to overcome the defects in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of super-long steel beam welding, in particular to a super-long steel beam construction site assembly tool. Background Art

[0002] Steel plate-concrete composite beams are a major technical breakthrough project in response to the Ministry of Transport's initiative to promote the construction of highway steel bridges. T-shaped or I-shaped steel beams offer significant advantages in their design and are frequently used in the deck panels of various long-span bridges. As traffic volume continues to saturate, road widths and spans are increasing during design, and their use has become commonplace in actual construction. The steel beams of the Anluo Bridge, with a total width of 51.5 meters and a beam length of 42 meters, are typically divided into three to five segments, making fabrication challenging. Controlling cross slope, alignment, and hole cluster accuracy are particularly challenging. Due to limited transportation routes, standard-length steel beams are fabricated in a single pass at a steel fabrication plant and transported to the site for installation. However, extra-long T-shaped or I-shaped beams cannot be fabricated in a single pass at the steel fabrication plant and often require secondary extensions on site. The on-site facilities are simple, resulting in low construction efficiency and the inability to reliably guarantee construction quality. There is an urgent need for a tooling to ensure construction quality and improve construction efficiency. Utility Model Content

[0003] The utility model provides an on-site assembly and welding tool for an extra-long steel beam, so as to overcome the shortcomings of the prior art.

[0004] The technical solution adopted by the present invention is: an on-site assembly tool for super-long steel beams, comprising a plurality of supporting longitudinal beams fixed side by side on the ground, a support seat being fixed longitudinally on the top of the supporting longitudinal beams, a plurality of limit plates being arranged at longitudinal intervals on the top surface of the support seat, and a limit groove being formed between two adjacent limit plates; a plurality of positioning plates are horizontally arranged on the outer sides of the supporting longitudinal beams at both ends, and the inner ends of the positioning plates are fixed on the outer sides of the support seats, and the top surfaces of the positioning plates are made to have the same height as the top surfaces of the support seats; the longitudinal width of the positioning plates is less than the spacing between adjacent limit plates, and the positioning plates are provided with positioning holes and connecting holes corresponding to the steel beams to be assembled; pins are inserted in the positioning holes, and bolt pairs are installed in the connecting holes.

[0005] The limiting plate is a trapezoidal limiting plate, so that the limiting groove becomes an inverted trapezoidal limiting groove.

[0006] The supporting longitudinal beam is composed of a concrete foundation and a steel plate embedded part prefabricated on the top of the concrete foundation, and the supporting seat is welded to the top of the steel plate embedded part.

[0007] The support seat is composed of a pair of I-beams, and the bottom of the I-beam is welded to the top of the steel plate embedded part.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] The utility model has a simple structure and is easy to operate. It realizes the rapid positioning of steel beam segments through the combination of limit grooves and pins, ensures the assembly and welding quality of the steel beams at the construction site, and improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model;

[0011] Figure 2 、 3 This is a schematic diagram of the supporting longitudinal beam structure of the utility model;

[0012] Figure 4 This is a schematic diagram of the structure of the embedded steel structure parts of the utility model;

[0013] Figure 5 It is a structural schematic diagram of the utility model in use state. DETAILED DESCRIPTION

[0014] The following is combined with Figures 1-5 The present invention is described in detail with specific implementation methods.

[0015] A tool for assembling an extra-long steel beam on a construction site, comprising a plurality of supporting longitudinal beams 1 fixed side by side on the ground, a support seat 2 being fixed longitudinally on the top of the supporting longitudinal beam 1, a plurality of limit plates 3 being arranged at longitudinal intervals on the top surface of the supporting seat 2, and a limit groove 4 being formed between two adjacent limit plates 3; a plurality of positioning plates 5 are horizontally arranged on the outer side of the supporting longitudinal beams 1 at both ends, and the inner ends of the positioning plates 5 are fixed on the outer side of the supporting seat 2, and the top surface of the positioning plates 5 is made to be at the same height as the top surface of the supporting seat 2; the longitudinal width of the positioning plates 5 is smaller than the spacing between adjacent limit plates 3, and the positioning plates 5 are provided with positioning holes 5-1 and connecting holes 5-2 corresponding to the steel beams to be assembled; a pin 6 is inserted in the positioning hole 5-1, and a bolt pair 7 is installed in the connecting hole 5-2.

[0016] In one embodiment, in order to facilitate the placement of the steel beam segment into the limiting groove, the limiting plate 3 is a trapezoidal limiting plate 3, so that the limiting groove 4 becomes an inverted trapezoidal limiting groove.

[0017] In one embodiment, the supporting longitudinal beam 1 is composed of a concrete foundation 1-1 and a steel plate embedded part 1-2 prefabricated on the top of the concrete foundation 1-1, and the supporting seat 2 is welded to the top of the steel plate embedded part 1-2.

[0018] In one embodiment, the support seat 2 is composed of a pair of I-beams, and the bottom of the I-beam is welded to the top of the steel plate embedded part 1-2.

[0019] In one embodiment, the positioning plate 5 is evenly distributed with connection holes 5 - 2 and positioning holes 5 - 1 adapted to the steel beams.

[0020] In one embodiment, the bottom of the positioning plate 5 is welded to the outer side of the support seat 2 via a rib plate to increase the rigidity of the positioning plate 5 .

[0021] During specific implementation, firstly, the number of supporting longitudinal beams 1 and the on-site spacing are determined according to the geometric dimensions and number of the steel beams to be spliced.

[0022] For hardened ground, after drilling holes in the ground and inserting the embedded steel bars 8 of the supporting longitudinal beam 1 into the holes, rebar glue is poured into the holes to make the supporting longitudinal beam 1 tightly bonded to the existing hardened ground, and then a prefabricated concrete foundation 1-1 supporting longitudinal beam 1 is constructed;

[0023] For non-hardened ground, bury the lower part of the supporting longitudinal beam 1 and the embedded steel bars 8 below the ground and compact the surrounding soil. Then prefabricate the concrete foundation 1-1 supporting longitudinal beam 1 so that the upper part of the supporting longitudinal beam 1 is more than 300mm higher than the existing ground to facilitate welding of the steel beam.

[0024] Then, the support seat 2, the limit plate 3 and the positioning plates 5 on the outside of the supporting longitudinal beams 1 at both ends are welded on the top plate of the steel structure embedded parts 1-2 supporting longitudinal beam 1. After measuring the accurate position of the tooling, the steel beam segments at both ends to be assembled are first hoisted to the corresponding position above the supporting longitudinal beam 1, and the steel beam segments at both ends are located in the limit groove 4. At this time, fine adjustments are made to make the group of holes and pins 6 and bolt pairs 7 at the corresponding positions of the ends of the steel beam segments fit together, and the steel beam segments at both ends are fixed together with the positioning plates 5 by the bolt pairs 7. Then, the central steel beam segment is hoisted to the corresponding position and assembled with the steel beam segments at both ends. At the same time, the gap between the central steel beam segment and the steel beam segments at both ends is adjusted to be uniform. The assembly is inspected and accepted. After meeting the quality requirements, the steel beam segments are fixed together with the support seat 2 by a clamp.

[0025] Finally, the qualified steel beams are welded. After the welding is completed, the pins 6, bolt pairs 7 and the clamps are removed, and the welded beams that extend beyond the beams are removed for use.

[0026] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A tool for assembling an extra-long steel beam on-site, characterized by: The invention comprises a plurality of supporting longitudinal beams (1) fixed side by side on the ground, a supporting seat (2) being fixed to the top of the supporting longitudinal beams (1) in the longitudinal direction, a plurality of limiting plates (3) being arranged at intervals in the longitudinal direction on the top surface of the supporting seat (2), and a limiting groove (4) being formed between two adjacent limiting plates (3); a plurality of positioning plates (5) being arranged horizontally on the outside of the supporting longitudinal beams (1) at both ends, and the inner ends of the positioning plates (5) being fixed to the outside of the supporting seat (2), and the top surfaces of the positioning plates (5) and the top surfaces of the supporting seat (2) being made equal in height; the longitudinal width of the positioning plates (5) being less than the spacing between adjacent limiting plates (3), and the positioning plates (5) being provided with positioning holes (5-1) and connecting holes (5-2) corresponding to the steel beams to be assembled; a pin (6) being inserted into the positioning hole (5-1), and a bolt pair (7) being installed in the connecting hole (5-2).

2. The on-site assembly tool for super-long steel beams according to claim 1, characterized in that: The limiting plate (3) is a trapezoidal limiting plate (3), so that the limiting groove (4) becomes an inverted trapezoidal limiting groove.

3. The on-site assembly tool for super-long steel beams according to claim 1, characterized in that: The supporting longitudinal beam (1) is composed of a concrete foundation (1-1) and a steel plate embedded part (1-2) prefabricated on the top of the concrete foundation (1-1); the supporting seat (2) is welded to the top of the steel plate embedded part (1-2).

4. The on-site assembly tool for super-long steel beams according to claim 1, characterized in that: The support seat (2) is composed of a pair of I-beams, and the bottom of the I-beam is welded to the top of the steel plate embedded part (1-2).

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