Steel beam mounting and positioning structure

Abstract

The utility model provides a steel beam installing and positioning structure which comprises a steel column, a transition steel beam, a connecting steel beam, a steel beam connecting piece, a web connecting plate and a connecting bolt. The transition steel beam is welded on the steel column in advance; steel beam connecting pieces are welded to the two ends of the upper flange of the connecting steel beam in advance and are in lap joint with the upper flange of the transition steel beam, so that the upper flanges of the transition steel beam and the connecting steel beam are consistent in elevation; bolt holes corresponding to webs of the transition steel beam and the connecting steel beam are formed in the web connecting plate in advance; and the web connecting plates connect the transition steel beams and the connecting steel beams in an aligned manner through connecting bolts. By means of the structure, it can be guaranteed that the installed connecting steel beam is accurately in butt joint with the transition steel beam in the horizontal direction and the vertical direction, the elevations of the two ends of the upper flange of the connecting steel beam can be conveniently controlled to meet the design requirement, it is guaranteed that structural stress meets the design requirement, construction efficiency and installation precision are improved, construction errors are reduced, and on-site construction quality is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of steel structure technology, and specifically relates to a steel beam installation and positioning structure. Background Technology

[0002] To expedite construction and reduce investment, steel structures are increasingly being adopted in buildings, and steel structure construction technology is becoming more mature. Connecting steel beams is a common construction procedure on site. However, after the beams are hoisted to the assembly position, workers typically align the pre-drilled holes in the connection nodes on the web, insert bolts, and temporarily assemble the beams together. At this point, the lifting equipment is removed from operation. Since construction and design usually account for errors in the manufacturing and installation processes, the bolt holes in the web of the steel beam are often slightly larger than the bolt diameter. Therefore, after the lifting equipment is removed, the steel beam, under gravity, causes the upper part of the bolt and bolt hole to come into contact with the force, resulting in a deviation between the center of the bolt and the bolt hole. This leads to the top elevation of the installed steel beam being lower than the original design elevation. As a steel beam undergoes multiple splices, this deviation accumulates, causing stress concentration at the beam connection points and affecting the structural safety of the steel structure.

[0003] Therefore, the above-mentioned steel beam connection construction process suffers from problems such as inaccurate steel beam positioning, deviations in the top elevation of the steel beams, and the cumulative effect of errors on the structural safety of the steel structure. This utility model provides a steel beam installation and positioning structure that can eliminate construction errors, enable rapid positioning, improve mechanical and on-site construction efficiency, accelerate construction progress, and ensure that the structural stress meets design requirements. Summary of the Invention

[0004] This utility model provides a steel beam installation and positioning structure that can eliminate construction errors, improve on-site construction efficiency, and ensure that the structural stress meets design requirements; specifically, it includes steel columns, transition steel beams, connecting steel beams, steel beam connectors, web plate connecting plates, and connecting bolts.

[0005] The steel columns, transition beams, and connecting beams are H-beams or I-beams, with the steel columns standing upright; the transition beams are short steel beams, pre-welded to the steel columns.

[0006] Steel beam connectors are pre-welded to both ends of the upper flange of the connecting steel beam along its length. Each steel beam connector has at least one straight surface. A portion of the straight surface of the steel beam connector is welded tightly to the upper flange of the connecting steel beam; the other portion extends beyond the end of the upper flange of the connecting steel beam and overlaps the upper flange of the transition steel beam, so that the upper flanges of the transition steel beam and the connecting steel beam are at the same vertical elevation.

[0007] The cross-section of the steel beam connector can be rectangular, triangular, U-shaped, L-shaped, or T-shaped.

[0008] The transition steel beam and the connecting steel beam are of the same type, and bolt holes are provided on the web plate at their joint ends.

[0009] The web plate connecting plate is pre-drilled with bolt holes corresponding to the web plates of the transition steel beam and the connecting steel beam; the web plate connecting plate connects the web plates of the transition steel beam and the connecting steel beam by means of connecting bolts.

[0010] Depending on the design requirements, web connecting plates are installed on one or both sides of the web of the transition steel beam and the connecting steel beam.

[0011] Stiffening ribs can be added to the web on the opposite side of the steel column from the transition steel beam to increase the local stability of the steel column and improve the structure's ability to resist deformation.

[0012] The beneficial effects of this utility model are as follows: The steel beam installation and positioning structure of this utility model can ensure that the installed connecting steel beam is accurately aligned with the transition steel beam in both the horizontal and vertical directions, making it easy to control the elevation of both ends of the upper flange of the connecting steel beam to meet the design requirements, ensuring that the structural stress meets the design requirements, improving construction efficiency and installation accuracy, reducing construction errors, and ensuring on-site construction quality; at the same time, it can also reduce the usage time and cost of large on-site lifting equipment. Attached Figure Description

[0013] Figure 1 This utility model presents a structural schematic diagram of a steel beam installation and positioning structure.

[0014] Figure 2 A schematic diagram of the cross-sectional shape of the steel beam connector of this utility model.

[0015] In the diagram: 1-steel column, 2-transition steel beam, 3-connecting steel beam, 4-steel beam connector, 5-web plate connector, 6-connecting bolt, 7-stiffening rib. Detailed Implementation

[0016] like Figure 1 As shown, a steel beam installation and positioning structure includes a steel column 1, a transition steel beam 2, a connecting steel beam 3, a steel beam connector 4, a web plate connecting plate 5, and connecting bolts 6.

[0017] Steel column 1, transition steel beam 2 and connecting steel beam 3 are H-beams or I-beams, with steel column 1 standing upright; transition steel beam 2 is a short steel beam, pre-welded to steel column 1.

[0018] Steel beam connectors 4 are pre-welded to both ends of the upper flange of the connecting steel beam 3 along its length. Each steel beam connector 4 has at least one straight surface. A portion of the straight surface of the steel beam connector 4 is welded tightly to the upper flange of the connecting steel beam 3; another portion extends beyond the end of the upper flange of the connecting steel beam 3 and overlaps the upper flange of the transition steel beam 2, so that the upper flanges of the transition steel beam 2 and the connecting steel beam 3 are at the same vertical elevation.

[0019] like Figure 2 As shown, the cross-section of the steel beam connector 4 can be rectangular, triangular, U-shaped, L-shaped, or T-shaped.

[0020] The transition steel beam 2 and the connecting steel beam 3 are of the same type, and bolt holes are provided on the web of their mating ends.

[0021] The web plate connecting plate 5 is pre-set with bolt holes corresponding to the web plates of the transition steel beam 2 and the connecting steel beam 3; the web plate connecting plate 5 connects the web plates of the transition steel beam 2 and the connecting steel beam 3 horizontally by means of connecting bolts 6.

[0022] The steel beam connector 4 ensures that the transition steel beam 2 and the connecting steel beam 3 are precisely aligned and connected in the vertical direction, while the web plate connector 5 ensures that the transition steel beam 2 and the connecting steel beam 3 are precisely aligned and connected in the horizontal direction.

[0023] Depending on the design requirements, the web connecting plate 5 is installed on one or both sides of the web of the transition steel beam 2 and the connecting steel beam 3.

[0024] Stiffening ribs 7 can be added to the web plate on the opposite side of the steel column 1, opposite to the transition steel beam 2, to increase the local stability of the steel column 1 and improve the structure's ability to resist deformation.

[0025] Specific implementation process: such as Figure 1 As shown, steel column 1 is erected, and transition steel beam 2 is a short steel beam. In the processing plant, the transition steel beam 2 is precisely welded to steel column 1 according to the design drawings.

[0026] In the processing plant, according to the design drawings, a portion of the flat surface of the steel beam connector 4 is welded tightly to the upper flange of the connecting steel beam 3; the other portion extends out of the upper flange end of the connecting steel beam 3, and during installation, it is hoisted and overlapped on the upper flange of the transition steel beam 2, so that the upper flanges of the transition steel beam 2 and the connecting steel beam 3 are at the same vertical elevation.

[0027] After the steel column 1 is installed vertically, the connecting steel beam 3 is hoisted, and the part of the steel beam connector 4 extending out of the upper flange of the connecting steel beam 3 is slowly brought close to and overlapped on the upper flange of the transition steel beam 2, so that the upper flanges of the transition steel beam 2 and the connecting steel beam 3 are precisely aligned and at the same elevation; then, the web plates of the transition steel beam 2 and the connecting steel beam 3 are horizontally aligned and connected using the web plate connector 5 and the connecting bolts 6; the butt joints in the above process are welded.

Claims

1. A steel beam installation and positioning structure, characterized in that: It includes steel columns (1), transition steel beams (2), connecting steel beams (3), steel beam connectors (4), web plate connecting plates (5), and connecting bolts (6); The steel column (1), transition steel beam (2) and connecting steel beam (3) are H-beams or I-beams, and the steel column (1) is erected; the transition steel beam (2) is a short steel beam, which is pre-welded to the steel column (1); The steel beam connector (4) is pre-welded to both ends of the upper flange of the connecting steel beam (3) along the length direction. The steel beam connector (4) has at least one flat surface. A portion of the flat surface of the steel beam connector (4) is welded to the upper flange of the connecting steel beam (3), and another portion extends out of the upper flange end of the connecting steel beam (3) and overlaps the upper flange of the transition steel beam (2), so that the upper flanges of the transition steel beam (2) and the connecting steel beam (3) are at the same elevation in the vertical direction. The transition steel beam (2) and the connecting steel beam (3) are of the same type, and bolt holes are provided on the web of their mating ends; The web plate connecting plate (5) is pre-equipped with bolt holes corresponding to the web plates of the transition steel beam (2) and the connecting steel beam (3); the web plate connecting plate (5) connects the web plates of the transition steel beam (2) and the connecting steel beam (3) horizontally through the connecting bolts (6); the butt joints of the above process are welded. The cross-section of the steel beam connector (4) is rectangular, triangular, U-shaped, L-shaped or T-shaped.

2. The steel beam installation and positioning structure according to claim 1, characterized in that: The web connecting plate (5) is provided on one or both sides of the web of the transition steel beam (2) and the connecting steel beam (3).

3. The steel beam installation and positioning structure according to claim 1, characterized in that: Stiffening ribs (7) are added to the web plate on the other side of the steel column (1) opposite to the transition steel beam (2).

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