Combined steel beam structure
By combining channel steel assemblies with adhesive rubber blocks, reinforced webs, and carbon fiber cloth, the problems of heavy self-weight, long construction period, and poor seismic performance of traditional beam structures are solved, realizing a lightweight, efficient construction, and high-performance composite steel beam structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional beam structures are heavy, have long construction periods, low modularity, complex connection methods, poor seismic performance, difficult to guarantee welding quality, high maintenance costs, and reduced adaptability.
The system combines channel steel assemblies with adhesive rubber blocks, reinforced webs, and carbon fiber cloth to form a flexible-rigid alternating structure. High-precision assembly is achieved using positioning holes and positioning posts, and polyurethane foam material is filled inside the channel steel assemblies to improve rigidity and sound insulation.
It achieves lightweight and rapid construction of high-performance beam structures, improves seismic performance and structural stability, simplifies construction processes, and reduces maintenance costs and material usage.
Smart Images
Figure CN224032005U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building materials, more particularly to a combined steel beam structure. BACKGROUND
[0002] With the vigorous development of modern engineering construction, various types of building structures have put forward higher requirements on the performance and construction efficiency of beam components. In the construction, bridge and large infrastructure construction, the traditional beam structure gradually shows limitations in meeting the demand of rapid construction and high performance. From the field of construction, whether it is commercial building, residential building or public building, the shortening of construction period and the optimization of structural performance are the problems to be solved. In bridge engineering, in the face of complex geographical environment and the continuous growth of traffic flow, the deficiencies of traditional beam structure in transportation, installation and anti-seismic etc. are increasingly prominent. Therefore, it is imminent to develop a new type of high-performance and rapid construction module beam structure.
[0003] At present, the common beam structure has certain problems in composition and connection mode. For example, although the traditional reinforced concrete beam is widely used, it has large self-weight, long construction period and poor ductility under dynamic load such as earthquake. Although the steel beam has high strength and light weight, it has weak corrosion resistance and high maintenance cost. In terms of connection mode, the connection process such as on-site welding of traditional beam structure not only has high requirements on construction environment and worker's technology, but also is difficult to guarantee the welding quality, which affects the overall performance of the structure. At the same time, the traditional beam structure has low modularization degree, and faces many difficulties in transportation and installation process. Once the local damage occurs, the repair and replacement are also relatively complex, which makes the adaptability of traditional beam structure gradually decrease in modern engineering construction. SUMMARY
[0004] Therefore, in order to solve the problems of large self-weight, long construction period and low modularization degree of the existing reinforced concrete beam, the utility model provides a combined steel beam structure, and the specific technical scheme is as follows:
[0005] A combined steel beam structure comprises:
[0006] A channel steel group comprises at least two channel steel units arranged at intervals, and each channel steel unit comprises two channel steel pieces arranged back to back.
[0007] A connecting group comprises a plurality of viscous rubber blocks arranged at intervals between two channel steel units.
[0008] A reinforcing group comprises a reinforcing web arranged inside the flange of the channel steel piece, and a carbon fiber cloth arranged outside the channel steel group, wherein the carbon fiber cloth is adapted to the arrangement position of the reinforcing web.
[0009] The combination steel beam structure is formed by the interval combination of back-to-back channel steel units and viscous rubber blocks, a structure system with flexible-rigid alternating distribution is formed, the load bearing capacity is ensured, and the structural deformation capacity is improved. The synergistic effect of the reinforcing webs and the carbon fiber cloth is enhanced, the bending stiffness of the structure is improved, and the stress concentration phenomenon caused by the traditional welded stiffening ribs is reduced.
[0010] Further, a positioning group is further included; the channel steel piece is provided with at least two positioning holes; and the positioning group includes positioning columns matched with the positioning holes.
[0011] Further, the positioning holes are hexagonal holes, and the positioning columns are hexagonal columns.
[0012] Further, rectangular cavities in equidistant arrangement are formed between the two channel steel units of the channel steel group, and the rectangular cavities are filled with polyurethane foam materials.
[0013] Further, the reinforcing web is a trapezoidal steel plate.
[0014] Further, the adjacent spacing of the reinforcing web is at least 2 times the height of the channel steel piece.
[0015] Further, the carbon fiber cloth includes a plurality of fiber winding cloths arranged at the outer side of the channel steel group.
[0016] Further, the fiber winding cloth includes an inner layer fiber cloth and an outer layer fiber cloth; the inner layer fiber cloth is cross-wound in ±45° to form a mesh structure, and the outer layer fiber cloth is unidirectionally wound in 0° along the channel steel axis.
[0017] Further, the end of the channel steel group is provided with an end plate, and the edge of the end plate extends to form a flange structure matched with the end of the carbon fiber cloth.
[0018] Further, the carbon fiber cloth includes two fiber winding cloths arranged at the two ends of the channel steel group, respectively. BRIEF DESCRIPTION OF DRAWINGS
[0019] The present utility model can be further understood from the following description in conjunction with the drawings. The components in the drawings are not necessarily drawn to scale, but the emphasis is placed on showing the principles of the embodiments. In different views, the same reference signs designate corresponding parts.
[0020] Figure 1 is a structural schematic of the combination steel beam structure according to an embodiment of the present utility model Figure 1 ;
[0021] Figure 2 is a structural schematic of the combination steel beam structure according to an embodiment of the present utility model Figure 2 ;
[0022] Figure 3It is the sectional view of the combined steel beam structure of the embodiment of the utility model.
[0023] Mark explanation:
[0024] 1, channel steel group, 2, connecting group, 3, reinforcing group, 4, positioning group,
[0025] 11, channel steel unit, 12, channel steel piece, 13, sealing plate,
[0026] 21, viscous rubber block, 31, reinforcing web, 32, carbon fiber cloth. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the utility model is further described in detail in the following with its embodiment.It should be understood that the specific embodiment described here is only used to explain the utility model, and does not limit the protection scope of the utility model.
[0028] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element.When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element.The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs.Any term used herein in the specification originates from the description of the specific embodiment and is not intended to limit the utility model.The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0030] The "first", "second" in the utility model do not represent the specific number and order, but only for the name of the distinction.
[0031] As Figure 1 And Figure 2 , Figure 3 As shown in the utility model embodiment, a combined steel beam structure comprises:
[0032] The channel steel group 1 comprises at least two channel steel units 11 arranged at intervals, and the channel steel unit 11 comprises two channel steel pieces 12 arranged back to back.
[0033] The connecting group 2 comprises a plurality of viscous rubber blocks 21 arranged at intervals between every two channel steel units 11.
[0034] The reinforcing group 3 includes a reinforcing web plate 31 arranged inside the flange of the channel steel 12, and a carbon fiber cloth 32 arranged outside the channel steel group 1, which is adapted to the arrangement position of the reinforcing web plate 31.
[0035] The combined steel beam structure described above, by arranging two channel steel pieces 12 to form an I-beam, forms a stable and convenient prefabricated and transported basic structure, and then connecting the two I-beams that have been combined by using viscous rubber blocks 21; at the same time, adding reinforcing web plates 31 inside the flange to enhance the stability of the flange, improve the overall carrying capacity, and avoid local instability, and finally wrapping the combined module beam with carbon fiber cloth 32; this modular design facilitates standardized prefabricated production in the factory, and only needs to splice the prefabricated parts on site, shortening the construction time.
[0036] Specifically, the viscous rubber block 21 connects two I-beams to ensure the integrity of the structure in normal conditions, and through elastic deformation to dissipate energy under dynamic loads such as earthquakes, greatly improving the seismic performance. The externally wrapped carbon fiber cloth 32 further enhances the strength and stiffness, and can also isolate environmental erosion to improve durability, solving the problems of easy corrosion and high maintenance cost of steel beams. In actual operation, the channel steel pieces 12 and the reinforcing web plates 31 bear the static loads such as the self-weight of the building, personnel and equipment loads, and effectively transmit these loads to the lower support structure; when encountering sudden dynamic loads such as earthquakes, the viscoelastic rubber block absorbs and dissipates seismic energy through its own deformation, and the carbon fiber cloth 32 tightly wraps the module beam, which can further enhance the overall strength and stiffness of the module beam, making it deform less when bearing loads, limiting the excessive deformation of the module beam, ensuring the stability of the structure, and effectively overcoming the defects of insufficient seismic resistance of traditional beam structures.
[0037] In one embodiment, it further includes a positioning group 4; the channel steel 12 is provided with at least two positioning holes; the positioning group 4 includes a positioning column adapted to the positioning hole.
[0038] In one embodiment, the positioning hole is a hexagonal hole, and the positioning column is a hexagonal column. In this way, through the geometric cooperation of the hexagonal positioning hole and the hexagonal column, millimeter-level assembly accuracy is achieved, the anti-rotation ability is improved by 80% compared with the traditional circular positioning structure, and construction misalignment is effectively avoided; at the same time, the detachable design facilitates the improvement of the efficiency of later maintenance and replacement.
[0039] In one embodiment, the two channel steel units 11 of the channel steel group 1 form equidistantly arranged rectangular cavities, and the rectangular cavities are filled with polyurethane foam material. In this way, the foaming and molding of the polyurethane foam material in the rectangular cavity can improve the overall stiffness of the structure and improve the sound insulation effect.
[0040] As Figure 3As shown, in one embodiment, the reinforcing web 31 is a trapezoidal steel plate. In this way, the design of the inclined edge of the trapezoidal steel plate optimizes the stress transmission path and reduces the maximum equivalent stress.
[0041] In one embodiment, the adjacent spacing of the reinforcing web 31 is at least 2 times the height of the channel steel member 12. In this way, when the spacing of the reinforcing web 31 is ≥ 2 times the height of the channel steel member 12, the local buckling critical load is improved and the material usage is reduced.
[0042] In one embodiment, the carbon fiber cloth 32 includes a plurality of fiber winding cloths arranged at intervals on the outer side of the channel steel group 1.
[0043] In one embodiment, the fiber winding cloth includes an inner layer of fiber cloth and an outer layer of fiber cloth; the inner layer of fiber cloth is cross-wound at ±45° to form a mesh structure, and the outer layer of fiber cloth is 0° unidirectionally wound along the axis of the channel steel. In this way, the inner layer of fiber cloth cross-wound at ±45° is beneficial to improve the shear bearing capacity, and the outer layer of fiber cloth unidirectionally wound at 0° is beneficial to improve the axial tensile strength.
[0044] In one embodiment, the channel steel group 1 is provided with an end plate 13, and the edge of the end plate 13 extends to form a flange structure matching the end of the carbon fiber cloth 32. In this way, the flange structure for mechanically locking the end of the carbon fiber cloth 32 is formed by the end plate 13, ensuring the stability of the structure.
[0045] In one embodiment, the carbon fiber cloth 32 includes two fiber winding cloths arranged at the two ends of the channel steel group 1, respectively. In this way, the double-end fiber winding cloth can reduce the end deflection and avoid end peeling damage in the three-point bending test, ensuring the stability of the structure.
[0046] The technical features of the above-mentioned embodiments can be combined in any way. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered as within the scope of the present application.
[0047] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. A composite steel beam structure, characterized by, The utility model relates to a steel structure, including: A channel steel group (1) comprising at least two channel steel units (11) arranged at intervals, the channel steel unit (11) comprising two channel steel pieces (12) arranged back to back; A connecting group (2) comprising a plurality of viscous rubber blocks (21) arranged at intervals between two channel steel units (11); A reinforcing group (3) comprising a reinforcing web (31) arranged inside the flange of the channel steel piece (12) and a carbon fiber cloth (32) arranged outside the channel steel group (1), the carbon fiber cloth (32) being adapted to the arrangement position of the reinforcing web (31).
2. A composite beam structure according to claim 1, wherein Further comprising a positioning group (4); The channel steel piece (12) is provided with at least two positioning holes; The positioning group (4) comprises a positioning column adapted to the positioning hole.
3. A composite beam structure according to claim 2, wherein The positioning hole is a hexagonal hole, and the positioning column is a hexagonal column.
4. A composite beam structure according to claim 1, wherein The two channel steel units (11) of the channel steel group (1) form equidistantly arranged rectangular cavities, and the rectangular cavities are filled with polyurethane foam material.
5. A composite beam structure according to claim 1, wherein The reinforcing web (31) is a trapezoidal steel plate.
6. A composite beam structure according to claim 5, wherein The adjacent spacing of the reinforcing web (31) is at least 2 times the height of the channel steel piece (12).
7. A composite beam structure according to claim 1, wherein The carbon fiber cloth (32) comprises a plurality of fiber winding cloths arranged at intervals outside the channel steel group (1).
8. A composite beam structure according to claim 7, wherein The fiber winding cloth comprises an inner layer fiber cloth and an outer layer fiber cloth; The inner layer fiber cloth is cross-wound at ±45° to form a mesh structure, and the outer layer fiber cloth is unidirectionally wound at 0° along the channel steel axis.
9. A composite beam structure according to claim 7, wherein The end of the channel steel group (1) is provided with an end plate (13), and the edge of the end plate (13) extends to form a flange structure adapted to the end of the carbon fiber cloth (32).
10. A composite beam structure according to claim 8, wherein The carbon fiber cloth (32) comprises two fiber winding cloths arranged at the two ends of the channel steel group (1) respectively.