Bridge floor guardrail steel bar construction positioning device
Through the bridge deck guardrail reinforcement construction positioning device, the total station and articulation device are used, combined with the leveling ruler and counterweight, the problem of uneven pre-embedding of the guardrail reinforcement is solved, and the precise control of the position of the steel bars and the thickness of the protective layer is achieved, and the construction operation is simplified.
Patent Information
- Application Number
- CN202422215797.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In the construction of highway bridges, it is difficult to maintain smooth embedding of guardrail steel bars, resulting in the geometric lines of the steel bars not parallel to the formwork, the size of the steel bars is low, and the existing scoring and plastic pad block methods are difficult to effectively ensure the position of the guardrail steel bars and the thickness of the protective layer.
A bridge deck guardrail steel bar construction positioning device is designed, including the main frame, plane position base, horizontal ruler, positioning steel bar and counterweight. It is staked and ink line positioned through the total station, and is fixed by hinging devices and pull rods to ensure that the guardrail steel bar is perpendicular to the positioning line, and the angle is adjusted through the horizontal ruler to control the position of the steel bar and the thickness of the protective layer.
The accurate positioning of guardrail steel bars and effective control of protective layer thickness are achieved, the construction process is simplified, and the qualification rate of steel bar position and protective layer thickness is improved.
Smart Images
Figure CN223061458U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of highway bridge construction, and more specifically to a construction positioning device for bridge deck guardrail steel bars. Background Art
[0002] In the design of highway bridges, in order to more effectively buffer the impact force generated when an accident vehicle collides, protect the safety of the vehicle and passengers, and at the same time reduce the damage to the bridge structure, the inner side of the anti-collision guardrail often has a unique arc-shaped or a linear design combining a broken line and an arc. Since the embedded guardrail steel bars at the construction site are often not smooth and need to be adjusted during guardrail construction, it is very difficult to ensure the positions of the steel bars and the formwork. The outer dimensions of the steel bars are not parallel to the geometric linear shape of the formwork, resulting in a low qualification rate of the steel bar protective layer dimensions, and the current situation is not optimistic. To address this issue, the commonly used method at present is to accurately lay out the inner edge line of the guardrail using a total station to determine the control line. At the same time, plastic cushion blocks are installed to ensure that the concrete protective layer thickness meets the design requirements. This method has very high requirements for the processing and installation of guardrail steel bars, and it is very difficult to achieve satisfactory results in actual construction. Content of the Utility Model
[0003] Therefore, to solve the above deficiencies, the utility model provides a construction positioning device for bridge deck guardrail steel bars here, which can effectively control the position of the guardrail steel bars, ensure the linear shape and protective layer thickness of the guardrail steel bars, and at the same time, the positioning device is simple to manufacture and easy to implement on site.
[0004] The utility model is implemented as follows. A construction positioning device for bridge deck guardrail steel bars is constructed, which includes a main frame and a plane position base arranged on the side beam, and the ends of the main frame and the plane position base are hinged;
[0005] A spirit level is installed on the main frame;
[0006] Positioning steel bars are welded on the main frame;
[0007] Plane position positioning steel bars are arranged inside the plane position base. The plane position positioning steel bars are placed on the positioning line and coincide with the positioning line, so that the device is perpendicular to the positioning line, and a counterweight is arranged at the rear part inside the plane position base.
[0008] Further, a hook tie rod is added between the main frame and the plane position base.
[0009] Further, both the main frame and the plane position base are made of 45 angle steel by welding.
[0010] Further, the angle between the spirit level and the main frame is the same as the angle between the guardrail steel bar and the vertical line, so that when the spirit level is vertical, the correct positioning of the guardrail steel bar can be ensured.
[0011] The utility model has the following advantages: The utility model provides a construction positioning device for bridge deck railing steel bars. The positioning steel bar at the bottom plane position of the railing steel bar construction positioning device is placed on the positioning line and coincides with the positioning line, making the device perpendicular to the positioning line, and adding a counterweight for fixation. By adjusting the articulated vertical adjustment device at the bottom of the positioning device, the spirit level is adjusted vertically, and the positioning device is fixed by a pull rod, which can effectively control the position of the railing steel bars, ensure the linear shape and the thickness of the protective layer of the railing steel bars. At the same time, the positioning device is simple to manufacture and easy to implement on site. Description of the Drawings
[0012] Figure 1 is a schematic structural diagram of an embodiment of the present application;
[0013] Wherein: the main frame 1, the plane position base 2, the spirit level 3, the positioning steel bar 4, the plane position positioning steel bar 5, the counterweight 6, and the hook pull rod 7. Specific Embodiments
[0014] The following will combine with the attached Figure 1 The present utility model will be described in detail. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0015] The present utility model provides a construction positioning device for bridge deck railing steel bars herein. As Figure 1 shown, it can be implemented in the following manner; it includes a main frame 1 and a plane position base 2 arranged on the side beam. The ends of the main frame 1 and the plane position base 2 are hinged and connected.
[0016] A spirit level 3 is installed on the main frame 1.
[0017] A positioning steel bar 4 is welded on the main frame 1.
[0018] A plane position positioning steel bar 5 is arranged in the plane position base 2. The plane position positioning steel bar 5 is placed on the positioning line and coincides with the positioning line, making the device perpendicular to the positioning line. A counterweight 6 is arranged at the rear part in the plane position base 2.
[0019] In the present application, a hook pull rod 7 is added between the main frame 1 and the plane position base 2.
[0020] In the present application, both the main frame 1 and the plane position base 2 are made of 45 angle steel by welding.
[0021] In this application, the angle between the spirit level 3 and the main body frame 1 is the same as the angle between the guardrail steel bars and the vertical line. Therefore, when the spirit level is vertical, the correct positioning of the guardrail steel bars can be ensured.
[0022] The working principle of this positioning device will be specifically described below:
[0023] 1. Construction layout: Use a total station to accurately layout 30 cm outside the inner edge line of the guardrail, and longitudinally connect the layout points with an ink line as the positioning line of the positioning device.
[0024] 2. Positioning of the positioning device: Place the positioning steel bar on the bottom plane position of the guardrail steel bar construction positioning device on the positioning line, coincide with the positioning line, make the device perpendicular to the positioning line, and add a counterweight for fixation;
[0025] 3. Positioning of the guardrail steel bars: Adjust the articulated vertical adjustment device at the bottom of the positioning device to make the spirit level vertical, and fix the positioning device with a pull rod. (Special note: Control the angle between the spirit level and the main body frame to be the same as the angle between the guardrail steel bars and the vertical line. Therefore, when the spirit level is vertical, the correct positioning of the guardrail steel bars can be ensured)
[0026] 4. Binding and welding of the guardrail steel bars: Use the positioning steel bar on the positioning device (the length of the positioning steel bar is the same as the thickness of the guardrail protection layer) to ensure the linear shape and position of the guardrail steel bars, so as to control the linear shape and the thickness of the steel bar protection layer of the entire bridge deck guardrail.
[0027] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A construction positioning device for bridge deck guardrail steel bars, characterized in that ； It includes a main frame (1) and a plane position base (2) arranged on the side beam, and the ends of the main frame (1) and the plane position base (2) are hinged together; A spirit level (3) is installed on the main frame (1); Positioning steel bars (4) are welded on the main frame (1); Plane position positioning steel bars (5) are arranged in the plane position base (2). The plane position positioning steel bars (5) are placed on the positioning line and coincide with the positioning line, so that the device is perpendicular to the positioning line. A counterweight (6) is arranged at the rear part in the plane position base (2).
2. The construction positioning device for the bridge deck railing steel bars according to claim 1, characterized in that; A hook tie rod (7) is added between the main frame (1) and the plane position base (2).
3. The construction positioning device for the steel bars of the bridge deck railing according to claim 1, characterized in that; Both the main frame (1) and the plane position base (2) are made of 45 angle steel by welding.
4. The construction positioning device for the steel bars of the bridge deck guardrail according to claim 1, wherein; The angle between the spirit level (3) and the main frame (1) is the same as the angle between the guardrail steel bars and the vertical line, so that when the spirit level is vertical, the correct positioning of the guardrail steel bars can be ensured.