Inclined opening and closing type steel trestle navigation hole and using method thereof

Abstract

The invention relates to an inclined opening and closing type steel trestle navigation hole which comprises a steel trestle, a pier, a cable-stayed steel pipe column and a winch. One end of the steel trestle is rotationally connected with the cable-stayed steel pipe column, the other end of the steel trestle is located on the upper portion of the pier, the winch is installed on the cable-stayed steel pipe column, one end of the stay cable is connected with the winch, the other end of the stay cable is connected with the steel trestle, and the winch pulls the stay cable to open and close the steel trestle. The opening and closing effect of the navigation hole of the steel trestle is achieved, and the ship passing requirement is met.

Description

Technical Field

[0001] The invention relates to the field of bridge engineering, in particular to a navigation hole of a cable-stayed retractable steel trestle and a use method thereof. Background Art

[0002] When bridge engineering involves underwater operations, steel trestles are often used as a temporary means of passage. When the waters are navigable, there are certain requirements for the width and height of the steel trestles. However, if the steel trestles cannot be erected too high due to height and slope terrain restrictions, or when encountering super-high ships with masts, the navigation holes of the steel trestles must have the function of lifting or opening and closing to meet the functional requirements of the ships. Summary of the invention

[0003] The present invention aims to overcome the defects of the prior art, and provides a navigation hole of a cable-stayed retractable steel trestle and a use method thereof, so as to solve the problem that super-high ships cannot pass through the steel trestle.

[0004] In order to solve the above-mentioned technical problems, the present invention is achieved as follows: A cable-stayed opening and closing steel trestle navigation hole is characterized in that it comprises a steel trestle, a pier, a cable-stayed steel pipe column and a winch; one end of the steel trestle is rotatably connected to the cable-stayed steel pipe column, the other end of the steel trestle is located on the upper part of the pier, the winch is installed on the cable-stayed steel pipe column, one end of the cable-stayed cable is connected to the winch, and the other end is connected to the steel trestle, and the winch pulls the cable-stayed cable to open and close the steel trestle.

[0005] The described cable-stayed retractable steel trestle navigation hole is characterized in that the steel trestle is a bottom-supported Bailey plate bridge deck system.

[0006] The described navigation hole of the inclined-stayed retractable steel trestle is characterized in that the upper and lower parts of the bottom-supported Bailey plate bridge deck system are respectively provided with reinforcing chord rods.

[0007] The described cable-stayed openable steel trestle navigation hole is characterized in that a roller is provided between the bottom-supported Bailey plate bridge deck system and the cable-stayed steel pipe column, and the bottom-supported Bailey plate bridge deck system is opened and closed by rotating the roller.

[0008] The described navigation hole of the cable-stayed retractable steel trestle is characterized in that the bridge pier comprises a steel pipe column and an I-beam connected to the top of the steel pipe column.

[0009] The method for using the navigation hole of a cable-stayed openable steel trestle is characterized in that: when an over-height ship needs to pass through the navigation hole of the steel trestle, the winch is started, the winch rotates and opens the steel trestle by tightening the cable-stayed cable, one end of the steel trestle rotates around the cable-stayed steel pipe column and lifts upward, at this time, the ship passes through the navigation hole of the steel trestle, the winch works again, relaxes the cable-stayed cable, the steel trestle moves downward until its outer end is placed on the bridge pier and stops moving, and the navigation hole is closed.

[0010] The beneficial effects of the present invention are as follows: It can be seen from the above technical scheme that the present application provides a cable-stayed opening and closing steel trestle navigation channel with stable components and strong bearing capacity. While meeting the navigation requirements of the navigation channel, it also has the effect of easy operation of the cable-stayed opening and closing, thereby ensuring the stability and safety of the bridge during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments: Figure 1 This is a longitudinal cross-sectional view of the application in a closed state.

[0012] Figure 2 This is a longitudinal cross-sectional view of the application when it is open.

[0013] Figure 3 It is a cross-sectional view. DETAILED DESCRIPTION

[0014] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection requested by the present application. like Figure 1-3 As shown: a navigation hole of a cable-stayed opening and closing steel trestle, which includes a steel trestle 1, a pier 2, a cable-stayed steel pipe column 3 and a winch 5; one end of the steel trestle is rotatably connected to the cable-stayed steel pipe column, and the other end of the steel trestle is located on the upper part of the pier. The winch is installed on the cable-stayed steel pipe column, one end of the cable-stayed cable 4 is connected to the winch, and the other end is connected to the steel trestle, and the winch pulls the cable-stayed cable to open and close the steel trestle.

[0015] Preferably, the steel trestle is a bottom-supported Bailey plate bridge deck system.

[0016] Preferably, reinforcing chords are installed above and below the bottom-supported Bailey bridge deck system respectively, so that the navigation hole can have a larger span.

[0017] Preferably, rollers are provided at both ends of the bottom-supported Bailey plate bridge deck system, and the bottom-supported Bailey plate bridge deck system is opened and closed by rotating the rollers.

[0018] Preferably, the bridge pier includes a steel pipe column and an I-beam connected to the top of the steel pipe column, and a bridge deck roller is fixed on the top of the I-beam.

[0019] Preferably, an inclined steel pipe column with a cable wind rope is provided to ensure that the steel pipe column can withstand the inclined tension requirements.

[0020] A method for using a navigation hole of a cable-stayed openable steel trestle. When an over-height ship needs to pass through the navigation hole of the steel trestle, a winch is started, the winch rotates and opens the steel trestle by tightening the cable-stayed cable, one end of the steel trestle rotates around a cable-stayed steel pipe column and is lifted upward. At this time, the ship passes through the navigation hole of the steel trestle, the winch works again, relaxes the cable-stayed cable, the steel trestle moves downward until its outer end is placed on a bridge pier and stops moving, and the navigation hole is closed.

[0021] The above are only embodiments provided for the present application and are not intended to limit the present application. Although the present application is described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A navigation hole of a cable-stayed steel trestle, characterized in that: It includes a steel trestle, a pier, a cable-stayed steel pipe column and a winch; one end of the steel trestle is rotatably connected to the cable-stayed steel pipe column, the other end of the steel trestle is located on the upper part of the pier, the winch is installed on the cable-stayed steel pipe column, one end of the cable-stayed cable is connected to the winch, and the other end is connected to the steel trestle, and the winch pulls the cable-stayed cable to open and close the steel trestle.

2. The navigation hole of the cable-stayed retractable steel trestle according to claim 1 is characterized by: The steel trestle is a bottom-supported Bailey plate bridge deck system.

3. The navigation hole of the cable-stayed retractable steel trestle according to claim 2 is characterized by: Reinforced chord rods are respectively installed on the upper and lower parts of the bottom-supported Bailey plate bridge deck system.

4. The navigation hole of the cable-stayed retractable steel trestle according to claim 3 is characterized by: A roller is arranged between the bottom-supported Bailey plate bridge deck system and the cable-stayed steel pipe column, and the bottom-supported Bailey plate bridge deck system is opened and closed by rotating the roller.

5. The navigation hole of the cable-stayed retractable steel trestle according to claim 1 is characterized by: The bridge pier includes a steel pipe column and an I-beam connected to the top of the steel pipe column.

6. The method for using the navigation hole of the cable-stayed retractable steel trestle according to claim 1 is characterized by: When an over-height ship needs to pass through the navigation hole of the steel trestle, the winch is started, the winch rotates and opens the steel trestle by tightening the inclined cable, one end of the steel trestle rotates around the inclined steel pipe column and lifts upward, at this time, the ship passes through the navigation hole of the steel trestle, the winch works again, relaxes the inclined cable, the steel trestle moves down until its outer end is placed on the pier and stops moving, and the navigation hole is closed.

7. The method for using the navigation hole of the cable-stayed retractable steel trestle according to claim 6 is characterized by: It also includes a control system and a visual camera connected to the control system, wherein the visual camera is arranged on the bottom surface of the bottom side of the steel trestle, and the visual camera arranged on the bottom side captures and photographs the ships appearing on the horizontal plane directly in front of the steel trestle, and the photos formed by the photography are transmitted to the control system, and the control system performs a ship query on the photographed ship photos, and determines whether its maximum height exceeds the minimum height of the steel trestle according to the query result of the ship. When the height of the ship exceeds the steel trestle, the winch is started by the control system, and the winch rotates and opens the steel trestle by tightening the inclined cable. One end of the steel trestle rotates around the inclined steel pipe column and lifts upward, so that the ship can pass through the navigation hole of the steel trestle; when the ship completely passes under the steel trestle, the visual camera located on the bottom surface of the steel trestle determines that it cannot continuously capture the visual image of the ship, thereby transmitting the result to the control system, and the control system starts the winch here, the winch reverses and relaxes the inclined cable, the steel trestle moves downward until its outer end is placed on the pier and stops moving, and the navigation hole is closed.

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