One-column double-hung guardrail structure

Abstract

The utility model relates to traffic protection facilities technical field especially relates to a one -column double -hanging guardrail structure, include: the stand, interval distribution multiple, wave -shaped board, install on the stand, double -hanging post, corresponding install at every stand top, obliquely to the stand one side extension support arm, anti -collision beam, install on the support arm, friction beam, install on the wave -shaped board far from the anti -collision beam one side, with stand fixed connection. The utility model effectively simplifies guardrail structure, improves guardrail overall stability, strengthens each component collaborative energy -absorbing effect.

Description

Technical Field

[0001] This utility model relates to the field of traffic safety facilities technology, and in particular to a single-post double-hanging guardrail structure. Background Technology

[0002] Highway guardrail systems are the lifeline of road safety, with their core function being to rigidly intercept out-of-control vehicles and orderly guide them back to the roadway. In the median strip of highways where two-way traffic intersects, it is a crucial safety barrier preventing vehicles from crossing into the opposite lane. Its protective effectiveness directly affects the rate of serious traffic accident injuries and fatalities. Guardrails must possess the ability to withstand impacts in both directions, which is precisely the irreplaceable technological value of double-mounted guardrails.

[0003] However, there are still some problems with the double-hung guardrails in the relevant technologies. Traditional double-hung guardrails often require separate posts or support points for the crash protection structures on both sides. This "double post" or "multi-point support" design results in a large amount of material consumption and complex foundation engineering, which significantly increases manufacturing costs and installation time. Moreover, the connection stability and torsional resistance between the support arm and the post are often not adequately considered. The connection point at the top of the post is prone to loosening, deformation or even failure under strong impact. The synergistic mechanism between the corrugated plate and the crash beam and friction beam is not optimized enough, which affects the reliability of the overall protection. Utility Model Content

[0004] In view of at least one of the above technical problems, this utility model provides a single-column double-hanging guardrail structure, which adopts a single-column integrated double-hanging support system to solve the problems of redundancy, insufficient torsional stability and poor energy absorption coordination of traditional double-hanging guardrail structures.

[0005] According to a first aspect of this utility model, a single-post double-hanging guardrail structure is provided, comprising:

[0006] Columns, spaced apart;

[0007] A corrugated plate is installed on the column;

[0008] Double hanging columns are installed on the top of each of the columns, with a support arm extending diagonally upward to one side of the column;

[0009] The anti-collision beam is installed on the support arm;

[0010] The friction beam is installed on the side of the corrugated plate away from the anti-collision beam and is fixedly connected to the column.

[0011] In some embodiments of this utility model, the support arm has a support opening to support the anti-collision beam;

[0012] The support arm and the corrugated plate are located on the same side of the column.

[0013] In some embodiments of this utility model, the corrugated plate, the support arm, the anti-collision beam, and the friction beam are all arranged opposite to each other on both sides of the column;

[0014] Two support arms are provided on each of the double hanging columns.

[0015] In some embodiments of this utility model, an energy-absorbing component is also installed on the column and fixedly connected to the corrugated plate.

[0016] In some embodiments of this utility model, the energy-absorbing element is disposed opposite to each other on both sides of the column and the corrugated plate perpendicular to the length direction.

[0017] In some embodiments of this utility model, the end of the double hanging column near the column has a connecting section extending toward the interior of the column; a plurality of stabilizing plates are provided on the connecting section to abut against the inner wall of the column;

[0018] The column is a hollow structure.

[0019] In some embodiments of this utility model, a fixed bracket is provided at the connection between the friction beam and the column, with one end fixedly connected to the friction beam and the other end fixedly connected to the column.

[0020] In some embodiments of this utility model, the fixing bracket has a fixing groove, and the friction beam is installed in the fixing groove.

[0021] In some embodiments of this utility model, a stabilizing member is also provided on the fixed bracket, which abuts against the side of the column near the friction beam.

[0022] In some embodiments of this utility model, two fixing brackets on the same column are respectively fixed to two sides of the column.

[0023] The beneficial effects of this utility model are as follows: By adopting a structural design that integrates a single column with a double-hanging support arm, this utility model achieves the goal of significantly reducing the number of columns and the amount of foundation engineering, effectively reducing material costs and construction complexity; by setting a double-hanging column with a connecting section and a stabilizing plate at the top of the column, the stability of the column top connection node is enhanced, effectively improving the torsional and lateral tilt resistance of the support arm and the anti-collision beam, and improving the overall stability and reliability of the guardrail under offset collision; by adopting a combination connection method of friction beam, fixed bracket, and stabilizing component, the friction beam is firmly constrained and its lateral displacement is suppressed, effectively enhancing the impact resistance and stability of the bottom structure, and improving the reliability and durability of the guardrail's guiding function. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the single-column double-hanging guardrail structure in an embodiment of this utility model;

[0026] Figure 2 This is a side view of the single-column double-hanging guardrail structure in an embodiment of this utility model;

[0027] Figure 3 This is a schematic diagram of the column and some components in the single-column double-hanging guardrail structure of this utility model embodiment;

[0028] Figure 4 This is a schematic diagram of the double-hanging posts in the single-post double-hanging guardrail structure of this utility model embodiment;

[0029] Figure 5 This is a schematic diagram of the fixed bracket in the single-column double-hanging guardrail structure of this utility model embodiment.

[0030] Reference numerals: 1. Column; 11. Energy-absorbing component; 2. Corrugated plate; 3. Double hanging column; 31. Support arm; 311. Support opening; 32. Connecting section; 321. Stabilizing plate; 4. Anti-collision beam; 5. Friction beam; 51. Fixed bracket; 511. Fixed groove; 512. Stabilizing component. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0033] 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 this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] like Figures 1 to 5 The single-post, double-hung guardrail structure shown includes:

[0035] One column, distributed at intervals, is installed at a set interval to form the main line of the guardrail;

[0036] The corrugated plate 2 is installed on the post 1, along the length of the main line of the guardrail.

[0037] Double hanging columns 3 are installed at the top of each column 1, and support arms 31 extend diagonally upward to one side of the column 1;

[0038] The anti-collision beam 4 is installed on the support arm 31;

[0039] Friction beam 5 is installed on the side of corrugated plate 2 away from anti-collision beam 4 and is fixedly connected to column 1.

[0040] Double-mounted guardrails need to provide balanced and strong protection for two-way traffic. Traditional solutions rely on double rows of posts with one or more points of support, resulting in structural redundancy, high costs, and the connection points at the top of the posts are prone to instability when subjected to impacts from both sides.

[0041] Compared to the traditional double-row column scheme, this embodiment uses a single row of spaced columns 1 as a base, with double hanging columns 3 at the top of each column, each extending upwards to support the anti-collision beam 4. Simultaneously, corrugated plates 2 are installed on the columns 1, and a friction beam 5 is fixedly connected to the lower side of the corrugated plates 2 away from the anti-collision beam 4. This design achieves the effect of requiring only a single row of columns 1 to fully support all core protective components on both sides, such as the anti-collision beam 4, corrugated plates 2, and friction beam 5. This directly reduces the number of columns 1, the amount of foundation work, and material consumption, significantly reducing costs. This design reduces construction costs. Addressing the issue of traditional column top connection points easily loosening and deforming under impact from both sides, the upwardly extending support arm 31 optimizes the impact force transmission path of the anti-collision beam 4, allowing it to be guided more smoothly to the main body of the column 1. Simultaneously, the high-positioned anti-collision beam 4 and the low-positioned friction beam 5, directly fixed to the column 1, form a high-low combination of three-dimensional anchoring systems, effectively dispersing the torque acting on the column 1 and significantly improving the column top connection point's resistance to lateral bending and torsion, ensuring the overall structural stability under strong impact.

[0042] When impacted, the anti-collision beam 4 first absorbs energy and provides initial guidance, the corrugated plate 2 continues to guide and deform to absorb energy, and then the friction beam 5 at the lower position further dissipates energy during the collision and prevents the vehicle from moving downwards towards the guardrail. This makes the impact force transmission path clearer, effectively reduces the risk of secondary damage after a vehicle collision, and improves the overall protection performance.

[0043] In some embodiments of this utility model, the support arm 31 has a support opening 311 to support the anti-collision beam 4;

[0044] Among them, the support arm 31 and the corrugated plate 2 are located on the same side of the column 1.

[0045] Compared with traditional simple welding or bolted planar connection methods, this design provides a customized snap-fit ​​or interlocking interface for the anti-collision beam 4, which not only greatly improves the ease of installation and positioning accuracy, but more importantly, effectively limits the lateral displacement and rotation tendency of the anti-collision beam 4 under impact, ensuring that the impact force is more reliably transmitted to the main body of the column 1 through the support arm 31, and enhancing the deformation resistance of the connection node.

[0046] At the same time, it is clearly required that the support arm 31 and the corrugated plate 2 be on the same side, which avoids the drawbacks of the anti-collision beam 4 and the corrugated plate 2 not being coplanar, or the generation of protective gaps and discontinuous force paths, thereby improving the overall interception reliability of the guardrail.

[0047] In some embodiments of this utility model, the corrugated plate 2, the support arm 31, the anti-collision beam 4, and the friction beam 5 are all arranged opposite to each other on both sides of the column 1;

[0048] Two support arms 31 are provided on each double hanging column 3.

[0049] Compared to traditional asymmetrical layouts or simplified solutions with only a single-sided anti-collision beam 4, this design aims to ensure that the guardrail provides fully balanced and high-strength impact protection for both directions of traffic, and strengthens the overall stability and structural integrity of a single column 1 when subjected to impact from either side. The components on the unimpacted side naturally provide reverse constraints and tension through their connecting structures such as the support arm 31 and the fixing point of the friction beam 5, effectively balancing the overturning moment. At the same time, the symmetrically extending support arms 31 on both sides of the double hanging columns 3 also enhance the rigidity and torsional performance of the column top structure, solving the problem of weak protection sides that may exist in traditional asymmetrical designs or single-sided support schemes, as well as the risk of column 1 being susceptible to overturning due to unilateral moment, thus ensuring the stability of the overall structure.

[0050] In some embodiments of this utility model, an energy-absorbing component 11 is also installed on the column 1 and fixedly connected to the corrugated plate 2.

[0051] Based on the above embodiments, the energy-absorbing component 11 is disposed opposite to each other on both sides of the column 1 and the corrugated plate 2, which are perpendicular to the length direction.

[0052] Compared to traditional designs where the corrugated plate 2 is often directly and rigidly connected to the column 1, or where only a weak energy-absorbing area is set in a localized area, these specially designed energy-absorbing components 11 (such as metal deformation boxes, high-energy-consuming polymer blocks, etc.) serve as structured energy absorption buffers and are strategically arranged on both sides of the connection area between the corrugated plate 2 and the column 1. When a vehicle impacts the corrugated plate 2, the energy-absorbing components 11 can preferentially undergo controllable plastic deformation or crushing, effectively absorbing and dissipating some of the impact kinetic energy. This significantly reduces the peak load and stress concentration transmitted to the connection between the column 1 and the corrugated plate 2, thereby significantly delaying or even avoiding the risk of deformation of the column 1, tearing of the connection point, or premature failure of the corrugated plate 2, thus protecting the main load-bearing structure.

[0053] The design of arranging the energy-absorbing components 11 on both sides of the column 1 in the width direction naturally forms the first line of defense against lateral impact forces. When the impact force has a lateral component, the energy-absorbing component 11 on the impact side can directly participate in energy absorption deformation. At the same time, its design of being fixedly connected to the corrugated plate 2 ensures that the energy can be transferred more evenly from the corrugated plate 2 to the energy-absorbing component 11 and then diffused to the column 1, rather than being concentrated on a single connecting line. This effectively disperses the lateral impact load and enhances the structure's adaptability to non-frontal impacts.

[0054] In some embodiments of this utility model, the end of the double hanging column 3 near the column 1 has a connecting section 32 extending toward the interior of the column 1; a plurality of stabilizing plates 321 are provided on the connecting section 32, and the outer contour of the stabilizing plate 321 matches the inner wall contour of the column 1. When installing the double hanging column 3, the stabilizing plate 321 can abut against the inner wall of the column 1.

[0055] Among them, column 1 is a hollow structure.

[0056] Compared to traditional methods that rely solely on top flange bolt connections or simple plug-in connections (which are prone to gaps and wobbling), this design achieves deep internal fitting and three-dimensional constraint. The connecting section 32 extending into the cavity of column 1 significantly increases the effective contact length and engagement depth between the double hanging columns 3 and column 1. Meanwhile, the multiple stabilizing plates 321, whose outer contours match the inner wall contours of column 1, form a strong shear and torsional support surface inside the column 1 through full-area rigid contact with the inner wall of column 1.

[0057] When the support arm 31 and the anti-collision beam 4 are subjected to vehicle impact (especially eccentric force or torsional force), the impact force is more evenly and directly distributed to the entire pipe wall of the column 1 through the connecting section 32, rather than concentrated at the weak top connection point or a few bolts. This fundamentally suppresses the relative displacement, rotation and deformation tendency of the node, giving the column top connection point excellent bending, torsion and tilting stability.

[0058] In some embodiments of this utility model, a fixed bracket 51 is provided at the connection between the friction beam 5 and the column 1, with one end fixedly connected to the friction beam 5 and the other end fixedly connected to the column 1.

[0059] Based on the above embodiment, the fixed bracket 51 has a fixed groove 511, and the friction beam 5 is installed in the fixed groove 511.

[0060] Compared to the traditional guardrail method of directly welding or simply bolting the friction beam 5 to the side of the post 1, this embodiment designs a fixed bracket 51 as a reinforced transition structure to efficiently diffuse and transfer the complex load on the friction beam 5 during collision to a larger surface area of ​​the post 1.

[0061] More importantly, the design of the fixing groove 511 allows the friction beam 5 to be "wrapped" or "embedded" in the fixing bracket 51, achieving mechanical restraint from the bottom and sides. This limits the friction beam 5 from jumping up and down, sliding laterally, and rotating under impact. It also allows the column 1 to effectively participate in the overall energy dissipation, reducing the possibility of vehicles passing under the guardrail. Moreover, the fixing groove 511 provides the friction beam 5 with a precise positioning reference and a stable support surface. Compared with the disadvantages of traditional on-site welding or bolt connection, which makes it difficult to guarantee centering and fit, it significantly improves installation efficiency and quality consistency.

[0062] In some embodiments, the friction beam 5 has a circular cross-section, and the fixing groove 511 also has a corresponding arc-shaped profile. The side of the fixing groove 511 that contacts the column 1 only has partial line contact, which is not stable in terms of protection. Preferably, the fixing bracket 51 is also provided with a stabilizing member 512, which is installed in the gap area between the fixing bracket 51 and the side of the column 1 and abuts against the side of the column 1 near the friction beam 5. This transforms the originally unstable line contact into surface contact at different angles or over a large area or continuously, significantly increasing the effective force transmission area and fundamentally improving the ability of the connection to resist impact and torsional torque.

[0063] In some embodiments of this utility model, two fixed brackets 51 on the same column 1 are respectively fixed to the two sides of the column 1. Compared with the traditional single-sided bracket, which causes the column 1 to bear a huge unilateral bending moment when subjected to the impact of the friction beam 5 on that side, this embodiment requires two fixed brackets 51 to be symmetrically installed on both sides of the same column 1 (even if there is no impact on the other side). This forms a natural force couple structure: when the friction beam 5 on one side is subjected to an impact load, the force it exerts on the column 1 through the bracket will be immediately balanced by the reverse constraint force generated by the unloaded bracket on the other side and its connecting structure. This effectively neutralizes the unilateral bending moment, significantly reduces the risk of bending deformation at the root of the column 1, foundation uplift or tilting, and fundamentally protects the structural integrity of the column 1, the core support component.

[0064] Based on the above embodiments, preferably, the anti-collision beam 4 and friction beam 5 can be composed of multiple segments spliced ​​together, and the two segments of the beam can be connected by nested sleeves at the interface. This solves the difficulties in transportation and installation of ultra-long anti-collision beam 4 or friction beam 5, and completely overcomes the core defect that the traditional segmented beam joint interface (such as direct welding or bolt flange connection) is prone to becoming a weak point in the structure under strong impact, resulting in breakage or deformation. The sleeve-type reinforced connection ensures that the strength, stiffness and continuity of the beam at the key interface are equal to or even better than the beam itself.

[0065] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A single-post, double-hanging guardrail structure, characterized in that, include: Columns (1), multiple of which are spaced apart; A corrugated plate (2) is installed on the column (1); Double hanging columns (3) are installed at the top of each of the columns (1) and a support arm (31) extends obliquely upward to one side of the column (1); A crash beam (4) is installed on the support arm (31); The friction beam (5) is installed on the side of the corrugated plate (2) away from the anti-collision beam (4) and is fixedly connected to the column (1).

2. The one-post double-hung guardrail structure according to claim 1, wherein The support arm (31) has a support opening (311) to support the anti-collision beam (4); The support arm (31) and the corrugated plate (2) are located on the same side of the column (1).

3. The twin-post guardrail structure according to any one of claims 1 or 2, characterized in that The corrugated plate (2), the support arm (31), the anti-collision beam (4) and the friction beam (5) are all arranged opposite to each other on both sides of the column (1); Two of the support arms (31) are provided on each of the double hanging columns (3).

4. The one-post double-hung guardrail structure according to claim 1, wherein An energy-absorbing component (11) is also installed on the column (1) and is fixedly connected to the corrugated plate (2).

5. The one-post double-hung guardrail structure according to claim 4, wherein The energy-absorbing component (11) is disposed opposite to the column (1) on both sides perpendicular to the length direction of the corrugated plate (2).

6. The one-post double-hung guardrail structure according to claim 1, wherein The double hanging column (3) has a connecting section (32) extending toward the interior of the column (1) at one end near the column (1); a plurality of stabilizing plates (321) are provided on the connecting section (32) and abut against the inner wall of the column (1); The column (1) is a hollow structure.

7. The one-post double-hung guardrail structure according to claim 3, wherein A fixed bracket (51) is provided at the connection between the friction beam (5) and the column (1), with one end fixedly connected to the friction beam (5) and the other end fixedly connected to the column (1).

8. The one-post double-hung guardrail structure according to claim 7, wherein The fixed bracket (51) has a fixed groove (511), and the friction beam (5) is installed in the fixed groove (511).

9. The one-post double-hung guardrail structure according to claim 8, wherein The fixed bracket (51) is also provided with a stabilizing member (512) that abuts against the side of the column (1) near the friction beam (5).

10. The one-post double-hung guardrail structure according to claim 9, wherein Two fixed brackets (51) on the same column (1) are respectively fixed to the two sides of the column (1).

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