Corrugated bridge guardrail box type expansion joint structure
By setting anti -collision units and buffer units in the telescopic joints of the waveform board guardrail to form a box box -type telescopic joint structure, the problem of insufficient expansion, connection strength, and buffer capacity of the waveform fence at the telescopic joints, realized the realization. Better impact absorption and use.
Patent Information
- Application Number
- CN202421725556.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-07-22
AI Technical Summary
The corrugated plate bridge guardrail does not extend enough at the expansion joint, and the connection strength and buffering capacity are insufficient, resulting in poor impact force transmission during collision, affecting the safety of use.
Design a wave -shaped bridge guardrail box box -type telescopic joint structure. By setting up anti -collision units and buffer units on the front and rear sides of the waveform plate, including front guard boards, trapezoids, rear guards, and buffer parts. These components are connected to the waveform plate to form a buffer structure to reduce impact transmission.
Effectively reduce the shock transmission during the collision, enhance the connection strength and buffer ability of the telescopic joints, and ensure the safety of the bridge guardrail.
Smart Images
Figure CN222412620U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge guardrails, and in particular relates to a box-type expansion joint structure of a corrugated bridge guardrail. Background Art
[0002] Bridge guardrails refer to guardrails installed on bridges. Their purpose is to prevent out-of-control vehicles from going over the bridge. They have the function of preventing vehicles from breaking through, passing under, or climbing over the bridge, as well as beautifying the bridge structure. As a semi-rigid guardrail, the corrugated steel guardrail is a continuous structure made of corrugated steel guardrail plates spliced together and supported by main columns. It can absorb energy and buffer well when in use, and provide good protection for vehicles and drivers and passengers. Corrugated steel guardrails are commonly used in roadbed sections, but are less used on bridges. One of the reasons is that the guardrails are required to have a large expansion amount at the expansion joints of the bridges, while the traditional corrugated guardrails use two adjacent corrugated plates overlapped and bolted together, and the expansion amount is insufficient.
[0003] Therefore, the utility model is designed to provide a box-type expansion joint structure of a corrugated bridge guardrail to solve the problems existing in the above-mentioned background technology. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the shortcomings of the prior art, the utility model provides a box-type expansion joint structure of a corrugated bridge guardrail, which has the advantage of being able to effectively reduce the transmission of impact force during a collision, solves the problems of insufficient expansion and contraction at the expansion joint of the corrugated plate bridge guardrail, insufficient connection strength and buffering capacity, and ensures the safe use of the bridge guardrail.
[0006] (II) Technical solution
[0007] In order to achieve the above-mentioned purpose of effectively reducing the impact force transmission during collision and ensuring the telescopic effect, the utility model provides the following technical solutions:
[0008] A box-type expansion joint structure of a corrugated bridge guardrail is arranged between two adjacent corrugated plates, comprising
[0009] The anti-collision unit is arranged on the side of the corrugated plate close to the road surface, and includes a front guard plate and a trapezoidal sleeve;
[0010] A buffer unit is arranged on the side of the corrugated plate away from the road surface, and includes a rear guard plate and a buffer member;
[0011] The connecting piece is arranged through the anti-collision unit, the buffer unit and the corrugated plate.
[0012] In a preferred embodiment, the trapezoidal sleeve is arranged between the front guard plate and the corrugated plate, and one end of the trapezoidal sleeve is connected to the front guard plate through a connecting piece, and the free end of the trapezoidal sleeve extends into the corrugated groove at the end of the adjacent corrugated plate and retracts along the corrugated groove.
[0013] In a preferred embodiment, the trapezoidal-mouth sleeve is a trapezoidal steel pipe structure that matches the corrugated groove on the corrugated plate.
[0014] In a preferred embodiment, the rear guard plate is a corrugated steel plate structure matching the shape of the corrugated plate.
[0015] In a preferred embodiment, the buffer is arranged between the guard plate and the corrugated plate, and one end of the buffer is connected to the rear guard plate through a connecting piece, and the free end of the buffer extends into the outside of the corrugated protrusion at the end of the adjacent corrugated plate and retracts along the corrugated protrusion.
[0016] In a preferred embodiment, the buffer is a U-shaped steel piece and matches the rear corrugated protrusion of the corrugated plate.
[0017] In a preferred embodiment, the buffer member is located opposite to the fixed end of the trapezoidal-mouth sleeve.
[0018] In a preferred embodiment, the front guard plate is a plate-shaped structure, and guide plates are symmetrically arranged at the separated ends of the two front guard plates.
[0019] In a preferred embodiment, the guide plate is bent inwardly and matches the corrugated groove on the corrugated plate.
[0020] In a preferred embodiment, the upper end of the front guard plate is also provided with an outwardly extending eaves plate, and the eaves plate extends outwardly to the outer side of the upper end plate of the rear guard plate.
[0021] (III) Beneficial effects
[0022] Compared with the prior art, the utility model provides a box-type expansion joint structure of a corrugated bridge guardrail, which has the following beneficial effects:
[0023] 1. By arranging anti-collision units and buffer units on the front and rear sides of the corrugated plate, a box-type expansion joint structure of the corrugated bridge guardrail is formed. After the front guard plate is hit, the free ends of the trapezoidal sleeve and the buffer member are expanded and contracted and the corrugated guard plate is squeezed to deform to achieve a buffering effect, thereby providing safety protection for the end connection of two adjacent corrugated plates, effectively ensuring highway safety.
[0024] 2. The guide plate can not only play a guiding role, but also seal the opposite ends of the front guard plates on both sides, so as to prevent rainwater on the corrugated plate from flowing into the interior of the front guard plate and causing rust;
[0025] 3. Through the arrangement of the trapezoidal mouth sleeve, on the one hand, the deformation of the trapezoidal mouth sleeve can be avoided by the stability of its own trapezoidal structure when the trapezoidal mouth sleeve is hit, providing good support and buffering force. On the other hand, the structural design of the trapezoidal mouth sleeve can achieve a hydrophobic effect, avoiding rust caused by water remaining on the surface for a long time. At the same time, the trapezoidal mouth sleeve acts on the corrugated plate, and the trapezoidal mouth sleeve itself and the corrugated plate provide a buffering effect to protect the end of the corrugated plate and the safety of the impacting vehicle. The free end of the trapezoidal mouth sleeve can also play a buffering and protective role through the telescopic effect of the free end of the trapezoidal mouth sleeve.
[0026] 4. Through the setting of the buffer, on the one hand, the corrugated plate is protected by the supporting force of the buffer to resist deformation, and the connecting end of the corrugated plate is provided with a reaction force to resist deformation to play a buffering role. On the other hand, the U-shaped structure design of the buffer can play a hydrophobic role to prevent water from remaining on the surface for a long time and causing rust; at the same time, the free end of the buffer can also play a buffering and protective role to prevent the corrugated plate from undergoing large deformation after impact and collision; the purpose of effectively reducing the transmission of impact force during collision and ensuring the telescopic effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 This is the installation effect diagram of the box-type expansion joint structure of the corrugated bridge guardrail of the utility model;
[0028] Figure 2 It is a partial enlarged view of the box-type expansion joint structure A of the corrugated bridge guardrail of the utility model;
[0029] Figure 3 This is an exploded view of the anti-collision unit of the utility model;
[0030] Figure 4 This is an exploded view of the buffer unit of the utility model;
[0031] Figure 5 For this utility model Figure 2 A partial enlarged view of point B in the middle.
[0032] In the figure: 1. front guard plate; 11. guide plate; 12. eaves plate; 2. trapezoidal mouth sleeve; 3. corrugated guard plate; 4. connecting piece; 5. rear guard plate; 6. buffer piece. DETAILED DESCRIPTION
[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0034] See also Figure 1-Figure 5 , the utility model provides a technical solution:
[0035] A box-type expansion joint structure of a corrugated bridge guardrail is arranged between two adjacent corrugated plates 3, and includes a front anti-collision unit and a rear buffer unit;
[0036] The anti-collision unit is arranged on the side of the corrugated plate 3 close to the road surface, and includes a front guard plate 1 and a trapezoidal sleeve 2;
[0037] The buffer unit is arranged on the side of the corrugated plate 3 away from the road surface, and includes a rear guard plate 5 and a buffer member 6;
[0038] The front guard plate 1, the trapezoidal sleeve 2, the rear guard plate 5 and the buffer 6 are all installed at the end of the corrugated plate 3 through the connecting piece 4;
[0039] In this embodiment, through the arrangement of the above-mentioned structure, when in use, the trapezoidal mouth sleeve 2 is installed between the front guard plate 1 and the corrugated plate 3, and the buffer member 6 is installed between the corrugated plate 3 and the rear guard plate 5 through the connecting member 4. The front guard plate 1, the trapezoidal mouth sleeve 2, the rear guard plate 5 and the buffer member 6 interact with the corrugated plate 3 to form a buffer structure. After the front guard plate 1 is hit, the buffering effect is achieved by the expansion and contraction of the free ends of the trapezoidal mouth sleeve 2 and the buffer member 6 and the squeezing and deformation of the corrugated guard plate 3, so that the end connection of the two adjacent corrugated plates 3 is safely protected to ensure highway safety.
[0040] As a preferred embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the front guard plate 1 is a plate-like structure arranged on the side of the corrugated plate 3 close to the road surface, and inwardly curved guide plates 11 are symmetrically arranged at the separated ends of the two front guard plates 1, and the guide plates 11 are used in conjunction with the corrugated grooves on the front side of the corrugated plate 3;
[0041] In this embodiment, by setting the guide plate 11, the guide plate 11 is fitted into the corrugated groove on the corrugated plate 3 after installation to play a guiding role, thereby guiding the movement of the front guard plate 1 on the corrugated plate 3 when the corrugated plate 3 is subjected to external impact; at the same time, the guide plate 11 is stuck in the corrugated groove on the corrugated plate 3, and the end faces between the guide plates 11 are tightly pressed against the corrugated plate 3, thereby achieving the effect of sealing the relative ends of the front guard plates 1 on both sides, thereby preventing rainwater on the corrugated plate 3 from flowing into the interior of the front guard plate 1 and causing rust.
[0042] As a preferred embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the trapezoidal sleeve 2 is a trapezoidal steel pipe structure matching the corrugated groove on the front side of the corrugated plate 3, and one end of the trapezoidal sleeve 2 is fixedly connected to the front guard plate 1 through a connector 4 to form a fixed end; the free end of the trapezoidal sleeve 2 extends into the corrugated groove at the end of the adjacent corrugated plate 3 and can be extended and retracted along the corrugated groove;
[0043] In this embodiment, by setting the structure of the trapezoidal mouth sleeve 2 to a trapezoidal steel pipe structure that matches the corrugated groove on the front side of the corrugated plate 3, on the one hand, when the trapezoidal mouth sleeve 2 is impacted, the stability of its own trapezoidal structure can be used to avoid deformation of the trapezoidal mouth sleeve 2, thereby providing good support and buffering force. On the other hand, the structural design of the trapezoidal mouth sleeve 2 can achieve a hydrophobic effect, thereby avoiding rust caused by water remaining on the surface for a long time. At the same time, the trapezoidal mouth sleeve 2 acts on the corrugated plate 3, and the trapezoidal mouth sleeve 2 itself and the corrugated plate 3 provide a buffering effect to resist deformation reaction force, thereby providing protection for the end of the corrugated plate 3 and the safety of the colliding vehicle. The free end of the trapezoidal mouth sleeve 2 can also be used to play a buffering and protective role.
[0044] As a preferred embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the rear guard plate 5 is a corrugated steel plate structure arranged at the rear side of the corrugated plate 3 and having a shape matching that of the corrugated plate 3;
[0045] In this embodiment, through the structural setting of the rear guard plate 5, it can be fixed on the rear side of the corrugated plate 3 after installation, so as to resist the deformation of the corrugated plate 3 after receiving the impact through the interaction between the rear guard plate 5 and the corrugated plate 3, thereby playing a buffering role.
[0046] As a preferred embodiment, Figure 2 , Figure 3 and Figure 4As shown, the buffer member 6 is a U-shaped steel member that matches the corrugated protrusion at the rear side of the corrugated plate 3, and one end of the buffer member 6 is fixedly connected to the rear guard plate 5 through the connecting member 4 to form a fixed end; the free end of the buffer member 6 extends into the outer side of the corrugated protrusion at the end of the adjacent corrugated plate 3, and can be extended and retracted along the length direction of the corrugated protrusion;
[0047] In this embodiment, by setting the structure of the buffer 6 to a U-shaped steel structure that matches the corrugated protrusion on the rear side of the corrugated plate 3, on the one hand, the corrugated plate 3 is protected by the support force of the buffer 6 to resist deformation, and a reaction force to resist deformation is provided to the connecting end of the corrugated plate 3 to play a buffering role. Secondly, the U-shaped structural design of the buffer 6 can play a hydrophobic role to prevent water from remaining on the surface for a long time and causing rust; at the same time, the free end of the buffer 6 can also play a buffering and protective role to prevent the corrugated plate 3 from undergoing large deformation after impact and collision.
[0048] As a preferred embodiment, Figure 2 , Figure 3 and Figure 4 As shown, the fixed end of the buffer member 6 is opposite to the fixed end of the trapezoidal-mouth sleeve 2;
[0049] In this embodiment, through the above-mentioned arrangement, the buffer 6 and the trapezoidal mouth sleeve 2 can form a cross arrangement, so that the buffering deformation length of the corrugated plate 3 can be increased, and the buffering effect is achieved through the connection relationship between the front buffer box 2 and the buffer 6 and the corrugated guard plate 3, and the expansion and contraction of the free ends of the front buffer box 2 and the buffer 6 and the squeezing deformation of the corrugated guard plate 3 after the impact.
[0050] As a preferred embodiment, Figure 5 As shown, an outwardly extending eaves plate 12 is also integrally formed at the upper end of the front guard plate 1, and the eaves plate 12 extends outward to the outer side of the upper end plate of the rear guard plate 5;
[0051] In this embodiment, the eaves plate 12 is provided to cover the edge of the corrugated plate 3, so that the telescopic structure has better integrity.
[0052] The construction and working principle of the box-type expansion joint structure of the corrugated bridge guardrail of the utility model include:
[0053] During installation, the trapezoidal sleeve 2 is fixed to the inner side of the front guard plate 1, and the buffer 6 is fixed to the inner side of the rear guard plate 5, and then the buffer 6 and the trapezoidal sleeve 2 are clamped in the corresponding positions on the corrugated plate 3, and the insertion depth of the buffer 6 and the trapezoidal sleeve 2 is adjusted. After the insertion depth is adjusted to meet the requirements, the front guard plate 1 and the rear guard plate 5 are installed on the ends of the corrugated plate 3 using the connecting member 4, forming a corrugated bridge guardrail box-type expansion joint structure, which has a buffering effect and protects the ends of the corrugated plate 3;
[0054] At the same time, by setting the guide plate 11, the guiding property can be improved and the blocking effect on the vehicle in the event of a collision can be reduced; it can form a cover with the edge of the corrugated plate 3 to make the telescopic structure more integrated; through the front trapezoidal mouth sleeve 2 and the buffer 6, the connection strength and buffering performance at the expansion joint can be improved.
[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.
[0056] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A box-type expansion joint structure of a corrugated bridge guardrail, arranged between two adjacent corrugated plates (3), characterized in that: include An anti-collision unit is arranged on the side of the corrugated plate (3) close to the road surface, and comprises a front guard plate (1) and a trapezoidal sleeve (2); A buffer unit is arranged on a side of the corrugated plate (3) away from the road surface, and comprises a rear guard plate (5) and a buffer member (6); The connecting piece (4) is arranged to penetrate the anti-collision unit, the buffer unit and the corrugated plate (3).
2. A corrugated bridge guardrail box-type expansion joint structure as claimed in claim 1, characterized in that: The trapezoidal sleeve (2) is arranged between the front guard plate (1) and the corrugated plate (3), and one end of the trapezoidal sleeve (2) is connected to the front guard plate (1) via a connecting piece (4), and the free end of the trapezoidal sleeve (2) extends into the corrugated groove at the end of the adjacent corrugated plate (3) and expands and contracts along the corrugated groove.
3. A corrugated bridge guardrail box-type expansion joint structure as claimed in claim 2, characterized in that: The trapezoidal-mouth sleeve (2) is a trapezoidal steel pipe structure that matches the corrugated groove on the corrugated plate (3).
4. The box-type expansion joint structure of a corrugated bridge guardrail according to claim 1, characterized in that: The rear guard plate (5) is a corrugated steel plate structure that matches the shape of the corrugated plate (3).
5. The box-type expansion joint structure of a corrugated bridge guardrail according to claim 2, characterized in that: The buffer (6) is arranged between the guard plate (5) and the corrugated plate (3), and one end of the buffer (6) is connected to the rear guard plate (5) through a connecting piece (4), and the free end of the buffer (6) extends into the outside of the corrugated protrusion at the end of the adjacent corrugated plate (3) and expands and contracts along the corrugated protrusion.
6. A box-type expansion joint structure of a corrugated bridge guardrail as claimed in claim 5, characterized in that: The buffer member (6) is a U-shaped steel member and matches the rear corrugated protrusion of the corrugated plate (3).
7. The box-type expansion joint structure of a corrugated bridge guardrail according to claim 5, characterized in that: The buffer member (6) is located opposite to the fixed end of the trapezoidal-mouth sleeve (2).
8. The box-type expansion joint structure of a corrugated bridge guardrail according to claim 1, characterized in that: The front guard plate (1) is a plate-shaped structure, and guide plates (11) are symmetrically arranged at the separated ends of the two front guard plates (1).
9. A box-type expansion joint structure of a corrugated bridge guardrail as claimed in claim 8, characterized in that: The guide plate (11) is bent inwardly and matches the corrugated groove on the corrugated plate (3).
10. The box-type expansion joint structure of a corrugated bridge guardrail according to claim 1, characterized in that: The upper end of the front guard plate (1) is also provided with an outwardly extending eaves plate (12), and the eaves plate (12) extends outwardly to the outer side of the upper end plate of the rear guard plate (5).