Bridge and culvert height-limiting protective frame structure suitable for earth road and sandstone road
By using seamless steel pipe columns and height-limiting beam structures in dirt and gravel road construction sites, combined with reinforced concrete ground beams, the problem of the actual height limit of the height-limiting protection frame exceeding the design height limit was solved, thus achieving safety protection for bridges and culverts.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-03
AI Technical Summary
In existing technologies, the actual height limit of the height restriction guards at construction sites on dirt roads and gravel roads is greater than the designed height limit, which makes the height restriction guards unable to effectively play their role in limiting height, and poses a safety risk of bridges and culverts being hit by vehicles.
The structure employs seamless steel pipe columns and height-limiting beams. Through flange connections and reinforced concrete ground beams, the foundation area is expanded, reducing ground pressure, preventing local settlement, ensuring the clearance between the height-limiting beams and the road surface, and improving safety.
Effectively controlling the clearance between the height restriction beam and the road surface avoids the risk of bridge and culvert being collided with by vehicles, thus improving the safety of the height restriction protection frame for bridges and culverts.
Smart Images
Figure CN224078020U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge and culvert height restriction protection frames, and in particular to a bridge and culvert height restriction protection frame structure suitable for dirt roads and gravel roads. Background Technology
[0002] Height restriction barriers are important railway safety protection facilities at railway crossing road construction sites. Regulations stipulate that "the clearance height (from the bottom of the crossbeam to the road surface) of the height restriction barrier between railway and road should always be 20mm to 100mm lower than the clearance height of the bridge or culvert." Typically, the design height limit of the height restriction barrier is controlled to be 20mm to 100mm lower than the actual measured clearance height inside the bridge or culvert.
[0003] For construction sites such as dirt roads and gravel roads, there is a possibility of a drop in road surface elevation, which may cause the actual height limit of the height restriction frame (from the bottom of the crossbeam to the road surface) to be greater than the design height limit, or even greater than the actual clearance inside the bridge or culvert. The height restriction frame does not play its role in limiting height. Although the height restriction frame is installed, the existing bridge or culvert still has the safety risk of being hit by vehicles. Utility Model Content
[0004] The purpose of this utility model is to solve the shortcomings of existing height restriction protection frames for construction sites such as dirt roads and gravel roads, where the actual height restriction value is greater than the design height restriction value, and to propose a bridge and culvert height restriction protection frame structure suitable for dirt roads and gravel roads.
[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution:
[0006] A height restriction protection frame structure for bridges and culverts suitable for dirt roads and gravel roads includes a pair of seamless steel pipe columns and a height restriction beam located at the upper end of the columns. The height restriction beam is composed of multiple hot-rolled seamless steel pipes welded together. The upper ends of the pair of seamless steel pipe columns are connected to the height restriction beam by flanges. The lower ends of the pair of seamless steel pipe columns are connected to foundations by flanges. A ground beam is provided between the pair of foundations.
[0007] Preferably, the ground beam is made of reinforced concrete.
[0008] Compared with the prior art, the beneficial effects of this utility model are:
[0009] In this utility model, in construction sites such as dirt roads and gravel roads, the ground beam can expand the foundation bottom area, reduce the foundation pressure per unit area, prevent excessive local settlement, and the ground beam is a reinforced concrete structure that can effectively control the net height from the height limit beam to the road surface, avoid the risk of bridge and culvert being hit by vehicles, and improve safety. Attached Figure Description
[0010] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0012] Figure 2 This is a schematic diagram showing the positional relationship between the foundation and the ground beam of this utility model.
[0013] The numbers in the diagram are: 1. Column; 11. Height-limiting beam; 12. Foundation; 13. Ground beam. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0016] Example: This example provides a bridge and culvert height restriction protection frame structure suitable for dirt roads and gravel roads. See [link / reference]. Figure 1-2 Specifically, it includes a pair of seamless steel pipe columns 1 and a height-limiting beam 11 located at their upper ends. The height-limiting beam 11 is composed of multiple hot-rolled seamless steel pipes welded together. The upper ends of the pair of seamless steel pipe columns 1 are connected to the height-limiting beam 11 by flanges. The lower ends of the pair of seamless steel pipe columns 1 are each connected to a foundation 12 by flanges. A ground beam 13 is provided between the pair of foundations 12. The ground beam 13 is made of reinforced concrete.
[0017] In construction sites such as dirt roads and gravel roads, the ground beam 13 can expand the bottom area of the foundation 12, reduce the foundation pressure per unit area, and prevent excessive local settlement. The ground beam 13 is a reinforced concrete structure, which can effectively control the net height from the height limit beam 11 to the road surface, avoid the risk of bridge and culvert being hit by vehicles, and improve safety.
[0018] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A bridge and culvert height limiting protection frame structure suitable for earth road and gravel road, comprising a pair of seamless steel pipe columns (1) and a height limiting cross beam (11) at the upper end of the columns, characterized in that: The height limiting cross beam (11) is composed of a plurality of hot-rolled seamless steel pipes, a pair of the seamless steel pipe columns (1) are flange connected with the height limiting cross beam (11) at the upper end, and the lower end of the pair of the seamless steel pipe columns (1) is flange connected with a foundation (12), and a ground beam (13) is arranged between the pair of the foundations (12).
2. The bridge and culvert height protection frame structure suitable for earth road and gravel road according to claim 1, characterized in that: The ground beam (13) is made of reinforced concrete.