Transition wing wall of medial strip concrete guardrail

Abstract

The utility model discloses a medial strip concrete guardrail transition wing wall which comprises a concrete guardrail standard section, transition wing wall sections connected to the concrete guardrail standard section and guardrails installed on the transition wing wall sections, and an opening is formed between the two transition wing wall sections. Mounting grooves are formed in the two sides of the transition wing wall sections, the two ends of the guardrail are fixedly connected to the two transition wing wall sections correspondingly and embedded in the mounting grooves, and the highest surface of the guardrail is flush with the outer surfaces of the transition wing wall sections. According to the medial strip concrete guardrail transition wing wall, the installation groove is formed between the two transition wing wall sections to be connected, the highest surface of the guardrail installed in the installation groove is flush with the outer surfaces of the transition wing wall sections, and the guardrail cannot protrude out of the highest surfaces of the side faces of the transition wing wall sections; on the premise of playing a guiding role, the vehicle is prevented from being stumbled and blocked, the vehicle is correctly guided out, the safety performance is improved, and the good protection capability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of road facilities, in particular to a transition wing wall of a concrete guardrail in a central dividing zone. Background Art

[0002] According to the relevant regulations on road traffic safety facilities, for sections of roads where large vehicles account for a large proportion, except in areas with heavy snow and wind in winter, concrete guardrails should be used for central median guardrails to improve road safety. Therefore, in recent years, more and more central median guardrails of newly built expressways are mostly made of concrete guardrails.

[0003] The concrete guardrail in the central median needs to be opened due to the presence of electromechanical inspection wells, gantry columns, bridge piers, etc. At present, the common practice for opening the central median guardrail is to overlap the corrugated beam plates on both sides of the guardrail opening. The overlapped corrugated beam plates form a bulge on the collision surface of the central median guardrail, which not only cannot guide traffic well, but also poses certain safety hazards.

[0004] In view of this, it is necessary to propose a central median concrete guardrail transition wing wall to solve the above defects. Utility Model Content

[0005] The main purpose of the utility model is to provide a central median concrete guardrail transition wing wall, aiming to solve the problem that the existing corrugated beam plate is connected to the opening of the concrete guardrail to form a bulge, resulting in poor traffic guidance and potential safety hazards.

[0006] To achieve the above-mentioned purpose, the utility model provides a central dividing zone concrete guardrail transition wing wall, comprising a standard section of concrete guardrail, a transition wing wall section connected to the standard section of concrete guardrail, and a guardrail installed on the transition wing wall section, an opening is formed between the two transition wing wall sections, and a mounting groove is opened on one side of each of the transition wing wall sections, the two ends of the guardrail are respectively fixedly connected to the two transition wing wall sections and embedded in the mounting groove, and the highest surface of the guardrail is flush with the outer surface of the transition wing wall section.

[0007] Preferably, the transition wing wall section comprises a connected transition section and a straight section, the transition section is connected between the standard section of the concrete guardrail and the straight section, and the mounting groove is provided on the straight section.

[0008] Preferably, the transition wing wall section is formed by pouring concrete.

[0009] Preferably, the impact surface of the standard section of the concrete guardrail is F-shaped or single slope.

[0010] Preferably, the impact surfaces on both sides of the transition wing wall section transition from the slope surface of the standard section of the concrete guardrail to a straight wall slope surface.

[0011] Preferably, both sides of the transition section form a gradual height change from high to low from one end close to the direct connection section to the other end.

[0012] Preferably, the guardrail and the transition wing wall section are connected by a connecting member.

[0013] Preferably, the connecting member is a steel bar.

[0014] Preferably, the guardrail is a corrugated steel beam guard plate.

[0015] Compared with the prior art, the central dividing zone concrete guardrail transition wing wall provided by the utility model has the following beneficial effects:

[0016] The central dividing zone concrete guardrail transition wing wall provided by the utility model is provided with the installation groove between the two transition wing wall sections to be connected, and the highest surface of the guardrail installed in the installation groove is flush with the side surface of the transition wing wall section, so that the guardrail will not protrude from the highest surface of the side surface of the transition wing wall section, thereby avoiding the guardrail from tripping the vehicle under the guiding effect, correctly guiding the vehicle, improving the safety performance, and also having good protection ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 It is an elevation view of the transition wing wall of the concrete guardrail of the central dividing zone provided by the utility model;

[0019] Figure 2 for Figure 1 Plan view of the median concrete guardrail transition wing wall shown;

[0020] Figure 3 for Figure 1 A cross-section of the median concrete guardrail transition wing wall is shown.

[0021] The purpose, features and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] 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 of 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.

[0024] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] Please refer to Figures 1 to 3 The utility model provides a central median concrete guardrail transition wing wall. The central median concrete guardrail transition wing wall comprises a concrete guardrail 5 standard section 1, a transition wing wall section 3 connected to the concrete guardrail 5 standard section 1, and a guardrail 5 installed on the transition wing wall section 3. An opening is formed between the two transition wing wall sections 3, and a mounting groove 7 is provided on one side of each transition wing wall section 3. The two ends of the guardrail 5 are respectively fixedly connected to the two transition wing wall sections 3 and embedded in the mounting groove 7 for connecting the formed opening. The highest surface of the guardrail 5 is flush with the side surface of the exterior of the transition wing wall section 3. By providing the mounting groove 7 between the two transition wing wall sections 3 to be connected at intervals, and making the highest surface of the guardrail 5 installed in the mounting groove 7 flush with the side surface of the exterior of the transition wing wall section 3, the guardrail 5 will not protrude from the highest surface of the side surface of the transition wing wall section 3, thereby avoiding the guardrail 5 from tripping the vehicle under the guiding effect, correctly guiding the vehicle, improving the safety performance, and also having good protection ability.

[0027] Specifically, the transition wing wall section 3 includes an integrally formed transition section 31 and a straight section 33, the transition section 31 is connected between the standard section 1 of the concrete guardrail 5 and the straight section 33, and the installation groove 7 is provided on the straight section 33. The straight section 33 is a straight wall, and the installation groove 7 is formed by being recessed inward from both side surfaces of the straight section 33, and the depth of the installation groove 7 is equal to the thickness of the guardrail 5, so that the guardrail 5 is installed in the installation groove 7 without protruding from the highest surface of the transition wing wall section 3, thereby preventing the vehicle from being tripped and improving the guiding performance.

[0028] Furthermore, the transition wing wall section 3 is formed by pouring concrete, that is, the transition section 31 and the direct connection section 33 of the transition wing wall section 3 are integrally formed by concrete, which is simple to form and has low manufacturing cost.

[0029] Specifically, the collision surface of the standard section 1 of the concrete guardrail 5 is F-shaped or single sloped to enhance its anti-collision performance.

[0030] Specifically, the collision surfaces on both sides of the transition wing wall section 3 are transitioned from the slope surface of the standard section 1 of the concrete guardrail 5 to a straight wall slope surface, so as to form a smooth connection between the transition wing wall section 3 and the standard section 1 of the concrete guardrail 5 while enhancing the structural strength.

[0031] Among them, both sides of the transition section 31 form a height gradient from high to low and a thickness gradient from large to small from one end close to the direct connection section 33 to the other end, so as to enhance the structural strength while forming a smooth connection between the transition wing wall section 3 and the standard section 1 of the concrete guardrail 5.

[0032] Specifically, the guardrail 5 and the transition wing wall section 3 are connected by a connecting member. Preferably, the connecting member is a steel bar. The guardrail 5 and the transition wing wall section 3 are anchored by steel bars.

[0033] like Figure 3 As shown, preferably, the guardrail 5 is a corrugated steel beam guard plate with high strength and strong impact resistance. In this embodiment, the guardrail includes a three-wave corrugated steel beam guard plate and a double-wave corrugated steel beam guard plate, both of which are installed simultaneously up and down. Of course, in other embodiments, the guardrail 5 can also be two double-wave corrugated steel beam guard plates or two three-wave corrugated steel beam guard plates.

[0034] The central dividing zone concrete guardrail transition wing wall provided by the utility model opens the installation groove 7 between the two transition wing wall sections 3 to be connected, and makes the highest surface of the guardrail 5 installed in the installation groove 7 flush with the side surface of the transition wing wall section 3, so that the guardrail 5 will not protrude from the highest surface of the side surface of the transition wing wall section 3. Under the premise that the guardrail plays a guiding role, it is prevented from tripping vehicles and correctly guides vehicles out, thereby improving safety performance and also having good protection capabilities.

[0035] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A central median concrete guardrail transition wing wall, characterized in that: It includes a standard section of concrete guardrail, a transition wing wall section connected to the standard section of concrete guardrail, and a guardrail installed on the transition wing wall section, an opening is provided between the two transition wing wall sections, and a mounting groove is provided on one side of each transition wing wall section, two ends of the guardrail are respectively fixedly connected to the two transition wing wall sections and embedded in the mounting groove, and the highest surface of the guardrail is flush with the outer surface of the transition wing wall section.

2. The central median concrete guardrail transition wing wall according to claim 1 is characterized in that: The transition wing wall section comprises a connected transition section and a straight-connection section, the transition section is connected between the standard section of the concrete guardrail and the straight-connection section, and the installation groove is arranged on the straight-connection section.

3. The central median concrete guardrail transition wing wall according to claim 1, characterized in that: The transition wing wall section is formed by pouring concrete.

4. The central median concrete guardrail transition wing wall according to claim 1, characterized in that: The impact surface of the standard section of the concrete guardrail is F-shaped or single sloped.

5. The central median concrete guardrail transition wing wall according to claim 1, characterized in that: The impact surfaces on both sides of the transition wing wall section transition from the slope surface of the standard section of the concrete guardrail to a straight wall slope surface.

6. The central median concrete guardrail transition wing wall according to claim 2, characterized in that: Both sides of the transition section form a gradual height change from high to low from one end close to the direct connection section to the other end.

7. The central median concrete guardrail transition wing wall according to claim 1, characterized in that: The guardrail and the transition wing wall section are connected via a connecting member.

8. The central median concrete guardrail transition wing wall according to claim 7, characterized in that: The connecting member is a steel bar.

9. The median concrete guardrail transition wing wall according to claim 1, characterized in that: The guardrail is a corrugated steel beam guard plate.

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