CN213390539U - Deformed steel structure of combined node - Google Patents
Deformed steel structure of combined node Download PDFInfo
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- CN213390539U CN213390539U CN202021800801.3U CN202021800801U CN213390539U CN 213390539 U CN213390539 U CN 213390539U CN 202021800801 U CN202021800801 U CN 202021800801U CN 213390539 U CN213390539 U CN 213390539U
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Abstract
The utility model discloses a deformed steel structure of modular node relates to building steel technical field. The utility model comprises a column body, a beam body and an assembled reinforced cover plate; the beam body is provided with a dog-bone type weakening node, one end part of the beam body is connected with the reinforcing cover plate, and a reinforcing node is formed between the beam body and the column body; the reinforcing cover plate comprises a plurality of beam enclosing plates which are sequentially connected to form an enclosing frame and a plurality of outer connecting plates connected to the column body, connecting rib plates are connected between every two adjacent outer connecting plates, and the outer connecting plates are connected with the beam enclosing plates through butt-joint arms. The utility model discloses simple structure through changing the deformed steel node, adopts dog bone formula to weaken the mode that node and enhancement mode node combined together, reduces stress concentration, improves life.
Description
Technical Field
The utility model relates to a building steel technical field, concretely relates to abnormal shape steel construction of modular node.
Background
The economic growth speed of China in recent years is witnessed, the thought consciousness of people is greatly improved, the residents put forward stricter and diversified requirements on the appearance and the use function of the building, and meanwhile, different types of structures gradually emerge in the visual field of people in order to adapt to the requirements of the masses. Deformed steel structures have been well developed and applied in recent years, and their types have become abundant with the development and application of technology. The deformed steel structure has beautiful structural form and good anti-seismic and mechanical properties. In addition, the steel structure has strong safety and economy, which is one of the important reasons that the steel structure is favored by the building industry. The technology can be used as a standard for evaluating the construction level condition of an area at present.
The deformed steel structure has its own features, such as various forms, huge volume, novel system, complex node structure, simple installation mode, strong practicability and the like. The advantages make the deformed steel structure suitable for commercial buildings such as shopping malls, hotels, gymnasiums, comprehensive buildings, city sculptures, gate building sculptures and the like in cities, and have good application prospect.
While the steel structure is rapidly developed, accidents of different types, reasons and degrees occur both domestically and abroad, and most commonly, the collapse of the steel structure causes serious casualties and economic property loss.
The reason is that a great deal of research on the mechanical property, the connection form and the structure of the steel structure shows that:
the damage is generally that the beam end forms a plastic hinge and generates yielding, and belongs to tensile yielding damage; and then the embedded steel plate yields, which belongs to shear yield failure. However, at present, the problems to be solved such as easy buckling due to shearing, easy deformation out of plane, easy adverse factors caused by welding process of the edge constraint component and the like are prominent, and the requirement for structural seismic resistance and energy consumption under the action of large earthquake is difficult to meet.
The damage of the steel structure is not caused by a single factor, but is the result of the combined action of a plurality of factors, and simultaneously, the connection position between the members is the weakest position, no matter which connection mode is adopted, welding, bolt connection or riveting, the damage and fracture mostly occur at the connection position between the members, wherein the damage of the beam column connection point causes the damage of the whole structure to account for about 40 percent of the damage example.
Therefore, the optimization of beam-column joint connection is of great significance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a deformed steel structure of modular node, simple structure through changing the deformed steel node, adopts dog bone formula to weaken the mode that node and enhancement mode node combined together, reduces stress concentration, improves life.
In order to realize the purpose, the utility model discloses a technical scheme be:
a deformed steel structure of a combined node comprises a column body, a beam body and an assembled reinforced cover plate; the beam body is provided with a dog-bone type weakening node, one end part of the beam body is connected with the reinforcing cover plate, and a reinforcing node is formed between the beam body and the column body; the reinforcing cover plate comprises a plurality of beam enclosing plates which are sequentially connected to form an enclosing frame and a plurality of outer connecting plates connected to the column body, connecting rib plates are connected between every two adjacent outer connecting plates, and the outer connecting plates are connected with the beam enclosing plates through butt-joint arms.
Furthermore, the butt joint arm is Y style of calligraphy, including two fixed butt joint boards that are connected to respectively on the different roof beam bounding walls, connect the support arm between two fixed butt joint boards, just the support arm other end is fixed on connecting the floor. Through two fixed butt joint board partials locking roof beam bounding wall and fix, provide effectual support and strengthen.
Further, support arm tip is provided with the concave groove, and concave groove width and connection floor span adaptation, and the concave groove inserts the connection floor outside and fixes.
Further, rubber shock pads are arranged between every two beam enclosing plates. The rubber shock pad can provide certain reservation flexible gap simultaneously, avoids because of the harmful effects that the weather reason caused.
Further, the reinforcing cover plate further comprises a bottom plate and a cover plate, wherein the bottom plate is arranged between the outer connecting plates, and a plurality of rivet preformed holes fixed to the column body are formed in the bottom plate. Can be fast be connected to the cylinder with reinforcing apron through the rivet preformed hole on the bottom plate, simple to operate.
Further, the weakening joint comprises a concave smooth weakening arc surface arranged on the flange of the beam body. The arc concave surface is adopted as a structure for weakening the dog bone type, the bearing capacity is centered, the stress concentration degree is small, and the ductility is good.
Compared with the prior art, the utility model has the advantages of: the utility model discloses carry out dog bone formula to the roof beam edge of a wing and weaken, edge of a wing cross-section department becomes smooth, has reduced stress concentration's emergence. Meanwhile, the beam end is properly reinforced by the cover plate, so that the node can still keep stronger ultimate bearing capacity and higher ductility and energy consumption performance while realizing outward movement of the plastic hinge, and brittle fracture is effectively avoided.
Secondly, the utility model discloses a simple structure of circular arc weakening dog bone formula, the bearing capacity is in the middle, and stress concentration degree is less, and the ductility is better, can wide application in engineering practice. The problems that the straight line weakened dog-bone type structure is simpler and more convenient, but the bearing capacity is lower, the stress concentration at the intersection of the two straight lines is obvious, and the ductility performance is poorer are overcome; the problems of higher tapered dog bone bearing and lighter stress concentration, but less ductility, are overcome.
Finally, be provided with the rubber shock pad between the roof beam bounding wall, be through leaving certain reservation seam on the one hand of rubber shock pad, on the other hand is when taking place to shear the yield and destroy, and the rubber shock pad can play certain guard action, avoids steel mechanism directly to receive the impact to cause to receive the shearing buckling.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to these drawings without inventive efforts.
Fig. 1 is a schematic structural view of a special-shaped steel structure of a combined node provided by the present invention;
fig. 2 is a schematic view of a reinforced cover plate structure of a special-shaped steel structure of a combined node provided by the present invention;
reference numerals: the damping structure comprises a beam body 1, a column body 2, a weakening node 3, a reinforcing cover plate 4, an external connecting plate 5, a connecting rib plate 6, a bottom plate 7, a connecting arm 8, a beam coaming 9 and a rubber damping pad 10.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention.
Furthermore, the appearances of the terms "first," "second," "third," and the like, if any, are only used to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
As shown in fig. 1-2, a special-shaped steel structure of a combined node comprises a column body 2, a beam body 1 and an assembled reinforced cover plate 4; a dog-bone type weakening node 3 is arranged on the beam body 1, the end part of one end of the beam body 1 is connected with a reinforcing cover plate 4, and a reinforcing node is formed between the beam body 1 and the column body 2; the reinforcing cover plate 4 comprises a plurality of beam coamings 9 which are sequentially connected into an enclosure frame and a plurality of outer connecting plates 5 which are connected to the column body 2, connecting rib plates 6 are connected between every two adjacent outer connecting plates 5, and the outer connecting plates 5 are connected with the beam coamings 9 through butt-joint arms.
The utility model provides a deformed steel structure of combination formula node, compared with the prior art, the utility model discloses a reinforcing formula node and dog bone formula weaken the connected node mode that node 3 combined together, its structural style can realize moving outward of plasticity hinge. In the structural engineering of the deformed steel, compared with the common connection, the long section of beam can almost enter the plasticity at the same time, the stress concentration phenomenon at the welding seam is reduced, the ductility design is realized, and the plasticity of the steel is fully exerted. The dog-bone type node has good energy consumption capability, namely plastic deformation capability, reliability and good anti-seismic performance under the action of low-cycle repeated load. Meanwhile, the beam end is properly reinforced by the cover plate, so that the node can still keep stronger ultimate bearing capacity and higher ductility and energy consumption performance while realizing outward movement of the plastic hinge, and brittle fracture is avoided to a limited extent.
And this enhancement formula node adopts the reinforcing apron 4 of pin-connected panel, can select the preinstallation mode, assembles in the mill earlier stage, also can select to assemble on the spot for the convenience of carrying, and this reinforcing apron 4 adopts symmetrical design, and the part replacement is strong.
As shown in fig. 1-2, the butt-joint arm is Y-shaped, and includes two fixed butt-joint plates respectively connected to different beam coamings 9, and a support arm connected between the two fixed butt-joint plates, and the other end of the support arm is fixed to the connection rib plate 6. Beam coaming 9 is locked and fixed by two fixed butt plate parts, providing effective support reinforcement. The support arm tip is provided with the concave groove, and the concave groove width and 6 span adaptations of connecting rib plate, and the concave groove inserts connecting rib plate 6 outsides and fixes.
And rubber shock absorption pads 10 are arranged between every two beam coamings 9. The rubber shock pad 10 can provide a certain reserved telescopic gap at the same time, and adverse effects caused by weather reasons are avoided. The reinforcing cover plate 4 further comprises a bottom plate 7 and a cover plate, wherein the bottom plate 7 is arranged between the outer connecting plates 5, and a plurality of rivet preformed holes fixed to the column body 2 are formed in the bottom plate 7. Can be connected reinforcing apron 4 to cylinder 2 on through the rivet preformed hole on the bottom plate 7 fast, simple to operate.
The weakening joint 3 comprises a concave smooth weakening arc surface arranged on the flange of the beam body 1. The arc concave surface is adopted as a structure for weakening the dog bone type, the bearing capacity is centered, the stress concentration degree is small, and the ductility is good.
When in actual use, at first assemble reinforcing apron 4, preferentially assemble roof beam bounding wall 9, the rubber pad of bar is all installed to two horizontal board both sides of roof beam bounding wall 9, and the fixed butt joint board through the butt joint arm of Y style of calligraphy is connected to the outside of a horizontal roof beam bounding wall 9 and a vertical roof beam bounding wall 9 respectively to make the rubber pad press from both sides tightly. After four butt-joint arms are connected in sequence, a plurality of beam coamings 9 are connected end to end in sequence to form an enclosure frame and are hooped at the end parts of the beam columns.
The other free end of the abutment arm is then inserted onto the connecting rib 6 and fastened by means of bolts or rivets. Finally, bolts or rivets or other stable mechanical fixing parts are adopted to fix the four external connection plates 5 on the bottom plate 7, and meanwhile, the triangular connection rib plates 6 are adopted to be fixed between every two external connection plates 5 in sequence, the connection rib plates 6 are fastened and connected with the external connection plates 5 through the bolts or the rivets, and are connected with the cover plates, and finally, the assembling is completed.
Compared with the integral steel beam in the prior art, when the integral steel beam is stressed, stress distribution at the beam flange of the integral steel beam is uneven, so that node stress is concentrated, the plastic hinge range of the whole node is small, brittle fracture is generated, welding defects can be generated in welding seams during welding, and the bearing capacity of the whole steel structure is insufficient. Meanwhile, the reinforced cover plate 4 improves the steel beam column joint aiming at the welding connection defect, so that the plastic hinge is far away from the beam column joint surface, and the strong ultimate bearing capacity and the high ductility and energy consumption performance can be still kept.
The joint mode combining the cover plate reinforcement and the dog-bone weakening has good anti-seismic performance, is obviously better than common joints in the aspects of destroying form, ductility and energy consumption performance, and can effectively avoid brittle failure of welding seams in joint areas. Be applied to in the actual engineering, compare ordinary node, this node construction convenience compares other chaining mode, adopts this node construction can improve the efficiency of construction, reduces the cost of labor, effectively shortens the time limit for a project. The node has high bearing capacity and good ductility, can prolong the service life of the deformed steel structure, and simultaneously reduces the later risk maintenance cost of the deformed steel structure.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.
Claims (6)
1. The utility model provides a heterotypic steel construction of modular node, includes cylinder (2), its characterized in that: the beam structure also comprises a beam body (1) and an assembled reinforced cover plate (4); the dog-bone type weakening joint (3) is arranged on the beam body (1), the end part of one end of the beam body (1) is connected with the reinforcing cover plate (4), and a reinforcing joint is formed between the beam body (1) and the column body (2); the reinforcing cover plate (4) comprises a plurality of beam coamings (9) which are sequentially connected into an enclosure frame and a plurality of outer connecting plates (5) which are connected to the column body (2), a connecting rib plate (6) is connected between every two adjacent outer connecting plates (5), and the outer connecting plates (5) are connected with the beam coamings (9) through butt-joint arms.
2. The profiled steel structure of the combined node as claimed in claim 1, wherein: the butt joint arm is Y-shaped, comprises two fixed butt joint plates which are respectively connected to different beam enclosing plates (9) and a support arm connected between the two fixed butt joint plates, and the other end of the support arm is fixed to the connecting ribbed plate (6).
3. The profiled steel structure of the combined node as claimed in claim 2, wherein: the support arm tip is provided with the concave groove, and the concave groove width and connection floor (6) span adaptation, and the concave groove inserts connection floor (6) outside and fixes.
4. The profiled steel structure of the combined node as claimed in claim 1, wherein: and rubber shock absorption pads (10) are arranged between every two beam enclosing plates (9).
5. The profiled steel structure of the combined node as claimed in claim 1, wherein: the reinforcing cover plate (4) further comprises a bottom plate (7) and a cover plate, wherein the bottom plate (7) is arranged between the outer connecting plates (5), and a plurality of rivet preformed holes fixed to the column body (2) are formed in the bottom plate (7).
6. The profiled steel structure of the combined node as claimed in claim 1, wherein: the weakening joint (3) comprises an inward concave smooth weakening arc surface arranged on the flange of the beam body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021800801.3U CN213390539U (en) | 2020-08-26 | 2020-08-26 | Deformed steel structure of combined node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021800801.3U CN213390539U (en) | 2020-08-26 | 2020-08-26 | Deformed steel structure of combined node |
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| Publication Number | Publication Date |
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| CN213390539U true CN213390539U (en) | 2021-06-08 |
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| CN202021800801.3U Active CN213390539U (en) | 2020-08-26 | 2020-08-26 | Deformed steel structure of combined node |
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| CN (1) | CN213390539U (en) |
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