Underpass frame bridge entrance and exit top plate lower edge anti-collision structure

Abstract

The utility model relates to frame bridge structure technical field especially a kind of underframe frame bridge entrance and exit roof lower edge anti-collision structure, including anti-collision angle steel and embedded steel member, wherein the embedded steel member is synchronously embedded in its inside with the pouring of the frame bridge, the anti-collision angle steel and the embedded steel member welded fixed constitute integral structure, the anti-collision angle steel is attached in the corner position of the entrance and exit of the roof.The utility model has the advantages of: it has strong practicability, frame bridge entrance and exit roof is equipped with anti-collision angle steel, which can protect the frame bridge entrance and exit roof from being damaged after impact, and ensure the service life of the frame bridge;It has high popularization and use value.

Description

Technical Field

[0001] This utility model relates to the field of frame bridge structure technology, and in particular to an anti-collision structure for the lower edge of the top plate of the entrance and exit of an underpass frame bridge. Background Technology

[0002] Underpasses and grade-separated bridges are ubiquitous on urban roads, and their three-dimensional traffic system greatly improves traffic capacity. While motor vehicles typically travel within these underpasses, their presence poses significant safety hazards. When vehicles exceeding height limits enter the underpass openings, they can easily scrape the lower edge of the bridge's roof slab, causing concrete spalling and exposed rebar, thus reducing the bridge's lifespan. Summary of the Invention

[0003] The purpose of this utility model is to address the shortcomings of the prior art by providing an anti-collision structure for the lower edge of the top slab of the entrance / exit of an underpass frame bridge. By installing anti-collision angle steel at the lower edge of the top slab of the entrance / exit of the underpass frame bridge, the lower edge of the top slab of the entrance / exit of the frame bridge is protected, preventing premature damage to the concrete structure after impact and ensuring the service life of the frame bridge.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A collision protection structure for the lower edge of the top slab of an underpass frame bridge is provided, wherein the lower edge of the top slab of the frame bridge is located at the entrance and exit position. The structure is characterized by comprising a collision protection angle steel and a pre-embedded steel reinforcement component, wherein the pre-embedded steel reinforcement component is embedded inside the bridge synchronously with the pouring of the frame bridge, the collision protection angle steel is welded and fixed to the pre-embedded steel reinforcement component to form an integral structure, and the collision protection angle steel is attached to the corner position of the entrance and exit of the top slab.

[0006] The embedded steel reinforcement component includes a continuous steel bar and a hooked steel bar arranged transversely along the top plate. The hooked steel bar is hooked onto the continuous steel bar. The lower part of the hooked steel bar has a right-angle portion that matches the horizontal plane of the anti-collision angle steel. The right-angle portion is welded to the anti-collision angle steel.

[0007] Several hooked steel bars are evenly spaced along the extension direction of the continuous steel bar.

[0008] The hooked steel bar and the anti-collision angle steel are reinforced by anchor bolts.

[0009] The anti-collision angle steel has an L-shaped structure.

[0010] The advantages of this utility model are: it has strong practicality; the anti-collision angle steel on the top plate of the entrance and exit of the frame bridge can protect the concrete structure of the top plate of the entrance and exit of the frame bridge from damage after being impacted, thus ensuring the service life of the frame bridge; it has high promotion and application value. Attached Figure Description

[0011] Figure 1 This is an elevation layout diagram of the present utility model;

[0012] Figure 2 This is a side view of the present invention;

[0013] Figure 3 This is a detailed drawing of the installation at the bottom of the top plate of this utility model;

[0014] Figure 4 This is a detailed drawing of the installation on the side of the top plate of this utility model. Detailed Implementation

[0015] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:

[0016] like Figure 1-4 As shown in the figure, 1-5 represent: frame bridge 1, frame bridge top slab 2, anti-collision angle steel 3, continuous steel bar 4, and hook steel bar 5, respectively.

[0017] Example: Figures 1 to 4 As shown, in this embodiment, the anti-collision structure at the lower edge of the top plate of the underpass frame bridge is set at the lower edge of the top plate 2 of the frame bridge 1. This position is easily hit by vehicles exceeding the height limit. The anti-collision structure in this embodiment is used to protect the concrete structure of the frame bridge 1 and prevent it from being damaged by impact.

[0018] Specifically, the anti-collision structure in this embodiment includes anti-collision angle steel 3 and pre-embedded steel reinforcement components composed of continuous steel bars 4 and hooked steel bars 5.

[0019] The anti-collision angle steel 3 has an L-shaped structure, which can fit against the right-angle position of the lower edge of the frame bridge top plate 2 to protect that position.

[0020] The continuous steel bar 4 and the hook steel bar 5 are embedded components that are embedded together with the concrete structure of the frame bridge 1. The continuous steel bar 4 is arranged along the transverse length of the top plate 2 of the frame bridge to ensure a stable connection between it and the top plate 2 of the frame bridge.

[0021] Along the extension direction of the continuous reinforcing bar 4, several hooked reinforcing bars 5 are evenly spaced; combined with Figure 3 and Figure 4As shown, the hooked steel bar 5 has a hook portion that matches the continuous steel bar 4. Through this hook portion, the hooked steel bar 5 can hook onto the continuous steel bar 4, ensuring the connection performance between the two. The bottom of the hooked steel bar 5 has a right-angle portion, and the horizontal portion of this right-angle portion fits into the horizontal portion of the L-shaped anti-collision angle steel 3 and is fixed by welding to form an integral structure. At this time, when the anti-collision angle steel 3 is impacted, because it forms an integral structure with the top plate 2 of the frame through the continuous steel bar 4 and the hooked steel bar 5, the anti-collision angle steel 3 has excellent cooperative stress-bearing capacity; when impacted, it can protect the lower edge of the entrance and exit of the top plate 2 of the concrete frame bridge. In some cases, the horizontal portion of the anti-collision angle steel 3 and the hooked steel bar 5 can also be reinforced by setting anchor bolts to further ensure the anti-collision effect of the anti-collision angle steel 3.

[0022] In this embodiment, the anti-collision angle steel 3 is made of hot-rolled equal-sided angle steel and is welded at equal intervals to the hook steel bars 5 in the top plate 2 of the frame bridge, which can be implemented simultaneously with the frame bridge 1.

[0023] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.

Claims

1. A collision-resistant structure for the lower edge of the top slab of an underpass bridge entrance, wherein the structure is located at the lower edge of the top slab of the underpass bridge entrance, characterized in that: It includes anti-collision angle steel and pre-embedded steel reinforcement components, wherein the pre-embedded steel reinforcement components are embedded inside the frame bridge simultaneously with its pouring. The anti-collision angle steel and the pre-embedded steel reinforcement components are welded and fixed to form an integral structure. The anti-collision angle steel is attached to the corner of the entrance and exit of the top plate.

2. The anti-collision structure at the lower edge of the top slab of the entrance / exit of an underpass bridge according to claim 1, characterized in that: The embedded steel reinforcement component includes a continuous steel bar and a hooked steel bar arranged transversely along the top plate. The hooked steel bar is hooked onto the continuous steel bar. The lower part of the hooked steel bar has a right-angle portion that matches the horizontal plane of the anti-collision angle steel. The right-angle portion is welded to the anti-collision angle steel.

3. The anti-collision structure at the lower edge of the top slab of the entrance / exit of an underpass bridge according to claim 2, characterized in that: Several hooked steel bars are evenly spaced along the extension direction of the continuous steel bars.

4. The anti-collision structure at the lower edge of the top slab of the entrance / exit of an underpass bridge according to claim 2, characterized in that: The hooked steel bar and the anti-collision angle steel are reinforced by anchor bolts.

5. The anti-collision structure at the lower edge of the top slab of the entrance / exit of an underpass bridge according to claim 1, characterized in that: The anti-collision angle steel has an L-shaped structure.

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