CN217840567U - Steel structure steel beam capable of improving collapse resistance and impact resistance - Google Patents
Steel structure steel beam capable of improving collapse resistance and impact resistance Download PDFInfo
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- CN217840567U CN217840567U CN202221510490.6U CN202221510490U CN217840567U CN 217840567 U CN217840567 U CN 217840567U CN 202221510490 U CN202221510490 U CN 202221510490U CN 217840567 U CN217840567 U CN 217840567U
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Abstract
The utility model provides a steel structure steel beam for improving collapse resistance and shock resistance, wherein two ends of the steel beam are arranged on a steel column, the steel beam comprises an upper flange, a web plate, a lower flange and a plurality of wave steel bars, the upper flange and the lower flange are arranged in parallel, the web plate is vertically arranged between the upper flange and the lower flange, and a plurality of holes are formed in the web plate at equal intervals; the corrugated steel bars are arranged on two sides of the web plate below the neutral axis of the steel beam, two ends of each corrugated steel bar are arranged on the steel column respectively, and corrugated sections are arranged on each corrugated steel bar at equal intervals and are a plurality of continuous upward convex semicircular arcs. The utility model discloses cut the hole at the web to and add the wave reinforcing bar at the below position of girder steel neutral axis, make when taking place great displacement, can improve the deformability of girder steel through the deformation of wave section and the deformation of hole, improve the anti performance of collapsing of girder steel.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an improve anti shock resistance's that collapses steel construction girder steel.
[ background of the invention ]
In the life cycle, the engineering structure needs to resist daily constant loads (such as dead load) and live loads (such as various live loads specified according to different load specifications of use functions) and also needs to bear various accidental loads, such as earthquake loads, explosion loads, impact loads and the like. The steel structure is widely applied to the engineering field because of good assembly and shock resistance, and in order to enable an engineering structure to have shock resistance, special measures are often adopted to meet the shock resistance of the structure when the structure is designed, for example, a design method of a strong column, a weak beam, a strong shear, a weak bending and a strong node, weak member is adopted in conceptual design. However, in terms of how to improve the performance of the structure under the action of the explosive load and the impact load, the related research is less due to the load specificity. In both civil and national defense fields, the capability of greatly improving the steel structure to resist explosion impact and other strong dynamic loads has very urgent needs, so the method is also a research hotspot in the protection engineering professional field. The technical approaches for improving the resistance performance of protective structures generally include two main approaches: one approach is to increase the overall stiffness and load bearing capacity of the structure, such as with ultra-high performance concrete, fiber reinforced composites, ultra-high molecular weight polyethylene, and the like. The other approach is to dissipate the strong dynamic load energy by crushing the member to absorb energy and increasing the maximum allowable deformation, for example, applying the sacrificial energy-consuming materials such as foamed aluminum, aerated concrete and water wall, and designing the spring damping support composite structure, which can generate large deformation without damage.
However, the application range of these new materials, new structures and new measures is generally limited to a certain extent, and there are higher technical thresholds and higher costs, so that although the anti-knock capability of the engineering structure or member can be improved to a certain extent, it is difficult to popularize and apply the new materials, the new structures and the new measures in a large range in a short time.
In view of this, the utility model discloses develop one kind based on original steel construction girder steel, on the basis that does not increase the material cost of the same kind hardly, carry out special technology to the girder steel and handle, not only satisfy the functional requirement that the girder steel normally used, improve the shock resistance of girder steel simultaneously, even the structure also does not cause whole structure to become invalid when having taken place great displacement deformation under blast load or the impact load effect, ensured the security of engineering.
[ Utility model ] content
The to-be-solved technical problem of the utility model lies in providing an improve anti-collapse shock resistance's steel construction girder steel, and it cuts the hole at the web to and add the wave reinforcing bar at the position below the girder steel neutral axis, make when taking place great displacement, can improve the deformability of girder steel through the deformation of wave section and the deformation of hole, improve the anti-collapse performance of girder steel.
The utility model discloses a realize like this:
a steel structure steel beam for improving collapse resistance and impact resistance is characterized in that two ends of the steel beam are arranged on a steel column, the steel beam comprises an upper flange, a web plate, a lower flange and a plurality of corrugated steel bars, the upper flange and the lower flange are arranged in parallel up and down, the web plate is vertically arranged between the upper flange and the lower flange, and a plurality of holes are formed in the web plate at equal intervals; the corrugated steel bars are arranged on two sides of the web plate below the neutral axis of the steel beam, two ends of each corrugated steel bar are arranged on the steel column respectively, and corrugated sections are arranged on each corrugated steel bar at equal intervals and are a plurality of continuous upward convex semicircular arcs.
Further, the holes are circular, hexagonal or polygonal with more than six sides.
Further, the diameter of the hole opening of the hole is not larger than 0.70 time of the height of the steel beam, and the distance between the edges of the adjacent holes is not smaller than 0.25 time of the height of the steel beam.
Furthermore, the volume of the wave-shaped reinforcing steel bars arranged on the two sides of the web plate is not less than that of the holes in the web plate.
Furthermore, the number of the wave sections of each wave reinforcing steel bar is odd.
Furthermore, the number of the semicircular arcs of each wave section is odd.
Furthermore, a plurality of the wave-shaped reinforcing steel bars on two sides of the web plate are arranged along the longitudinal direction of the web plate.
Furthermore, each wave section is respectively located between two adjacent holes.
Furthermore, the distance between the two holes on the outermost side of the web plate and the beam end on the side corresponding to the steel beam is not less than the height of the steel beam.
The utility model has the advantages that:
the utility model discloses the utilization is excavated the polygon hole circular, hexagon, or be greater than the hexagon to the web of steel construction girder steel to and add the wave reinforcing bar at the below position of girder steel neutral axis, make the girder steel when taking place great displacement, can improve the deformability of girder steel through the deformation of wave section and the deformation of hole, improve the girder steel because of taking place the anti performance of collapsing of strikeing the destruction.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Figure 1 is the utility model relates to an improve the schematic diagram of anti-impact property's of collapsing steel structural steel girder.
Figure 2 is the utility model relates to an improve anti shock resistance's that collapses steel construction girder steel cross section schematic diagram.
[ detailed description ] A
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings and the detailed description. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" 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.
Referring to fig. 1 to 2, in the steel beam with a steel structure of the present invention, two ends of the steel beam 1 are disposed on the steel column 2, the steel beam 1 includes an upper flange 11, a web 12, a lower flange 13 and a plurality of corrugated steel bars 14, the upper flange 11 and the lower flange 13 are disposed in parallel, the web 12 is vertically disposed between the upper flange 11 and the lower flange 13, and the web 12 is provided with a plurality of holes 15 at equal intervals; the wave steel bars 14 are arranged on two sides of the web plate 12 below the neutral axis 16 of the steel beam 1, two ends of each wave steel bar 14 are respectively arranged on the steel column 2, wave sections 141 are arranged on each wave steel bar 14 at equal intervals, and each wave section 141 is a plurality of continuous upward convex semicircular arcs.
In the implementation, a preferred embodiment is as follows: the holes 15 are circular, hexagonal or polygonal with more than six sides.
In the implementation, a preferred embodiment is as follows: the diameter of the hole opening of the hole 15 is not more than 0.70 times of the height of the steel beam, and the distance between the edges of the adjacent holes 15 is not less than 0.25 times of the height of the steel beam.
In the implementation, a preferred embodiment is as follows: the volume of the wave-shaped reinforcing steel bars 14 arranged on the two sides of the web 12 is not less than the volume of the holes 15 on the web 12 (namely the volume of steel excavated by the web).
In the implementation, a preferred embodiment is as follows: the number of the wave segments 141 of each wave reinforcement 14 is odd.
In the implementation, a preferred embodiment is as follows: the number of the semicircular arcs of each wave section 141 is odd.
In the implementation, a preferred embodiment is as follows: the plurality of wave bars 14 on both sides of the web 12 are arranged along the longitudinal direction of the web 12.
In the implementation, a preferred embodiment is as follows: each wave segment 141 is located between two adjacent holes 15.
In the implementation, a preferred embodiment is as follows: the distance between the two outermost holes 15 on the web 12 and the beam end of the corresponding side of the steel beam is not less than the height of the steel beam.
The working principle of the utility model is as follows:
the web plate 12 of the steel structure steel beam 1 is dug to form a round, hexagonal or polygonal hole 15 larger than six sides, and the wave steel bar 14 is additionally arranged at the position below the neutral axis of the steel beam 1, so that when the steel beam 1 is displaced greatly, the deformation capacity of the steel beam 1 can be improved through the deformation of the wave section 141 and the deformation of the hole 15, and the collapse resistance of the steel beam 1 due to impact damage is improved.
According to the stress distribution characteristics of the normal section of the material mechanics flexural member, the normal section stress distribution is that the magnitude of the normal stress of each point is in direct proportion to the distance from the point to a neutral axis (the normal stress at the neutral axis is zero, the normal stress at the upper edge and the lower edge of the section farthest from the neutral axis is the largest, namely, an inverted triangle is arranged above the neutral axis, and a regular triangle is arranged below the neutral axis, so that the section material can be dug out at the position where the neutral axis stress is zero, but if the steel material along the neutral axis is dug out from the whole steel beam, the steel beam is divided into two independent steel beams, the integral property of the steel beam is basically changed, but the integral property of the steel beam which is one steel beam can not be changed by equally spacing circular holes or polygonal holes, the mechanical characteristics of the neutral axis stress of the steel beam which is zero are met, the material section can be zero are met, and in addition, after the impact action, the steel beam can be deformed through the drilled holes to improve the deformation capability of the steel beam. Add the wave reinforcing bar at the position below the girder steel neutral axis, receive the impact load effect back at the girder steel, the wave reinforcing bar that adds can additionally provide the great deformation of girder steel through the deformation of the wave section, prevents that the structure from taking place to collapse because of too big impact load.
Therefore, after the steel structure steel beam with the collapse and impact resistance is used, the deformation performance of the steel structure steel beam can be obviously improved, the collapse resistance of a structure is enhanced, and the steel structure steel beam can be widely applied to protection engineering with special requirements.
Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.
Claims (9)
1. The utility model provides an improve anti shock resistance's that collapses steel construction girder steel, the both ends setting of girder steel is on the steel column, its characterized in that: the steel beam comprises an upper flange, a web plate, a lower flange and a plurality of wavy steel bars, the upper flange and the lower flange are arranged in parallel up and down, the web plate is vertically arranged between the upper flange and the lower flange, and a plurality of holes are formed in the web plate at equal intervals; the corrugated steel bars are arranged on two sides of the web plate below the neutral axis of the steel beam, two ends of each corrugated steel bar are arranged on the steel column respectively, and corrugated sections are arranged on each corrugated steel bar at equal intervals and are a plurality of continuous upward convex semicircular arcs.
2. A steel structural beam for enhancing collapse resistance and impact resistance as claimed in claim 1 wherein: the holes are circular, hexagonal or polygonal with more than six sides.
3. A steel structural beam for enhancing collapse resistance and impact resistance as claimed in claim 1 wherein: the diameter of the hole opening of the hole is not larger than 0.70 time of the height of the steel beam, and the distance between the edges of the adjacent holes is not smaller than 0.25 time of the height of the steel beam.
4. A steel structural beam for enhancing collapse resistance and impact resistance as claimed in claim 1 wherein: the volume of the wave steel bars arranged on the two sides of the web plate is not less than that of the holes in the web plate.
5. A steel structural beam for enhancing collapse resistance and impact resistance as claimed in claim 1 wherein: the number of the wave sections of each wave reinforcing steel bar is odd.
6. A steel structural beam for enhancing collapse resistance and impact resistance as claimed in claim 1 wherein: the number of the semi-circular arcs of each wave section is odd.
7. A steel structural beam for enhancing collapse resistance and impact resistance as claimed in claim 1 wherein: the wave-shaped reinforcing steel bars on two sides of the web plate are arranged along the longitudinal direction of the web plate.
8. A steel structural beam for enhancing collapse resistance and impact resistance as claimed in claim 1 wherein: each wave section is respectively positioned between two adjacent holes.
9. A steel structural beam for enhancing collapse resistance and impact resistance as claimed in claim 1 wherein: and the distance between the two holes on the outermost side of the web plate and the beam end on the corresponding side of the steel beam is not less than the height of the steel beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221510490.6U CN217840567U (en) | 2022-06-16 | 2022-06-16 | Steel structure steel beam capable of improving collapse resistance and impact resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221510490.6U CN217840567U (en) | 2022-06-16 | 2022-06-16 | Steel structure steel beam capable of improving collapse resistance and impact resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217840567U true CN217840567U (en) | 2022-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221510490.6U Active CN217840567U (en) | 2022-06-16 | 2022-06-16 | Steel structure steel beam capable of improving collapse resistance and impact resistance |
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| Country | Link |
|---|---|
| CN (1) | CN217840567U (en) |
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2022
- 2022-06-16 CN CN202221510490.6U patent/CN217840567U/en active Active
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