CN205444114U - Steel truss-composite material mixed anti-collision protection system for pier - Google Patents

Abstract

The utility model discloses a steel truss-composite material hybrid anti-collision protection system for bridge piers. The hybrid anti-collision protection system includes a steel truss system and a self-floating anti-collision device. The steel truss system is installed on the bearing platform of the bridge pier , and set around the bridge pier, pile foundation is poured under the cap, and the self-floating anti-collision device is set around the steel truss system; the steel truss system is composed of guide columns, connecting beams, load-bearing columns, wear-resistant plates, etc. Composition, the cross-sectional shape of columns and beams can be I-shaped, square tube or groove-shaped, and the connection method can be welding or bolt connection; the wear-resistant plate can be welded, plug-welded, bolted, etc. connection; the composite anti-collision ring is a box-shaped self-floating anti-collision ring or a cylindrical self-floating anti-collision ring. The utility model is suitable for the anti-collision of bridges with large water level changes. By arranging a steel truss system on the bearing platform, the defect of weak anti-collision ability of pier columns is improved, and the overall anti-collision performance of bridge piers is improved.

Description

A steel truss-composite material hybrid anti-collision protection system for bridge piers

technical field

The utility model relates to the technical field of ship-bridge collision, in particular to a bridge anti-collision system with wide application, good energy absorption and high efficiency, which can be used for bridge anti-collision with large water level changes.

Background technique

With the development of my country's economy and society, my country's bridge construction has entered a stage of rapid development. According to statistics, there are more than 730,000 existing bridges in my country, with a total length of more than 40,000 kilometers. Bridges on navigable rivers account for about 10% of the total number of bridges. , the ship bridge accident that comes along with also more and more arouses the attention of all quarters. The problem of bridge ship collision prevention is gradually getting great attention from relevant shipping management, planning and design departments.

For the existing anti-collision system, the position of the anti-collision device is generally fixed, but when setting up anti-collision facilities for bridges with large water level changes, in order to meet the anti-collision requirements, the commonly used method is to increase the anti-collision facilities height, which not only increases the cost, but does not necessarily bring the ideal effect; for the composite anti-collision ring that can change with the water level, it perfectly solves this problem, but in the case of high water level collision, the ship hits the bridge When the column is used, the crash resistance of the bridge column is obviously weak, which may cause bridge damage.

Utility model content

The purpose of this utility model is to solve the existing technical problems and propose a steel truss-composite material hybrid anti-collision system to deal with the situation of large water level changes and weak anti-collision ability of the bridge column. Through the setting of the steel guide column system, the absorption part Ship collision energy, prolong the ship collision time, to achieve the purpose of protecting the bridge.

The technical scheme adopted by the utility model is: a steel truss-composite material hybrid anti-collision protection system for bridge piers, the hybrid anti-collision protection system includes a steel truss system and a self-floating anti-collision device, and the steel truss system is installed on the bridge pier and set around the bridge pier, the pile foundation is poured under the cap, and the self-floating anti-collision device is set around the steel truss system;

The steel truss system includes support columns, guide columns, tie beams, support beams and wear-resistant plates. The support columns are vertically installed in the middle of the cap, and the guide columns are vertically installed along the edge of the cap, forming a rectangular or elliptical Shaped structure system, multiple guide columns are connected by horizontal tie beam welding or bolts, the guide columns and support columns are connected by horizontal support beam welding or bolts, the collision surface of the guide columns is welded, plug welded or bolted With wear plate;

The self-floating anti-collision device is spliced by multiple segments and can move up and down with the water level.

As a preference, the cross-sectional shapes of the support columns, guide columns, tie beams and support beams are I-shaped, square tube-shaped or channel-shaped, and the steel materials used are ordinary carbon steel plates of Q235.

Preferably, the self-floating anti-collision device has a height of 2-3 meters and a cylindrical or box-shaped section.

Beneficial effects: the utility model improves the weak anti-collision ability of pier columns by setting a steel truss-composite material hybrid anti-collision protection system for bridge piers on bridges, and through the installation of steel guide column systems, the deformation absorption part of the steel truss Ship collision energy, and prolong the ship collision time, so as to achieve the purpose of protecting the bridge.

Description of drawings

Fig. 1 is the schematic diagram of the steel truss-composite material hybrid anti-collision protection system for the bridge pier of the present invention;

Fig. 2 is a schematic diagram (ellipse) of the utility model steel truss system;

Fig. 3 is a schematic diagram (rectangular shape) of the steel truss system of the present invention;

Fig. 4 is the utility model composite material anti-collision device (cylindrical type);

Fig. 5 is the utility model composite material anti-collision device (box type);

Fig. 6 is the column or beam cross-section (square tube type) of the utility model steel truss;

Fig. 7 is the utility model steel truss middle column or beam cross-section (I shape);

Fig. 8 is the utility model steel truss column or beam cross-section (groove type);

Among them: 1—bridge pier; 2—caps; 3—pile foundation; 4—hybrid anti-collision protection system; 5—steel truss system; 6—self-floating anti-collision device; 7—supporting column; 8-guiding column; 9 - tie beam; 10 - support beam; 11 - wear plate.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1-8:

A steel truss-composite material hybrid anti-collision protection system for bridge piers, the hybrid anti-collision protection system 4 includes a steel truss system 5 and a self-floating anti-collision device 6, and the steel truss system 5 is installed on the cap 2 of the bridge pier 1 and set around the pier 1, pile foundation 3 is poured under the cap 2, and the self-floating anti-collision device 6 is set around the steel truss system 5; the steel truss system 5 includes support columns 7 and guide columns 8 , tie beam 9, support beam 10 and wear-resistant plate 11, the support column 7 is vertically installed in the middle of the bearing platform 2, and the guide column 8 is vertically installed along the edge of the bearing platform 2, forming a rectangular or elliptical structure around it system, a plurality of guide columns 8 are welded or bolted through a horizontal tie beam 9, and the guide columns 8 and support columns 7 are welded or bolted through a horizontal support beam 10, and the collision surfaces of the guide columns 8 are welded and plugged. Wear-resistant plates 11 are welded or bolted; the self-floating anti-collision device 6 is spliced by multiple segments and can move up and down with the water level.

The cross-sectional shapes of the support column 7, the guide column 8, the tie beam 9 and the support beam 10 are I-shaped, square tube-shaped or groove-shaped, and the steel used is a common carbon steel plate of Q235. The height of the self-floating anti-collision device 6 is 2-3 meters, and the section is cylindrical or box-shaped.

The production process of the steel truss-composite material hybrid anti-collision protection system in the above embodiment is as follows:

a. Make the steel truss system first. The steel truss system selects its section and size according to the actual engineering needs, cuts and grinds it at the same time, and reserves installation holes as required, and at the same time takes necessary anti-corrosion measures on the surface of the steel pipe; when the connection method is welding, the size of the welding angle must be Meet the requirements, and the weld seam is fully welded without false welding, and the weld seam is fully coated with anti-rust paint.

b. The steps of the lower part of the support column and the guide column need to be filled with concrete by secondary pouring, and the post-cast concrete needs to be treated with reinforcement. The original chamfer of the platform cap needs to be poured according to the requirements, and it needs to be rebar-planted, and the implanted steel bar is welded with the original steel bar of the platform cap.

c. The self-floating composite anti-collision system is prefabricated by the factory, and the production stage is transported to the destination for on-site splicing.

In the above preparation process: the structural form and size of the steel truss system, the size of each parameter, the size and number of bolts can be flexibly adjusted according to needs.

The embodiments of the utility model have been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the described embodiments. For those of ordinary skill in the art, within the scope of the principles and technical ideas of the present utility model, various changes, modifications, replacements and deformations to these embodiments still fall within the protection scope of the present utility model.

Claims (3)

1. A steel truss-composite material hybrid anti-collision protection system for a bridge pier, characterized in that: the hybrid anti-collision protection system includes a steel truss system and a self-floating anti-collision device, and the steel truss system is installed on the cap of the bridge pier and set around the pier, the pile foundation is poured under the cap, and the self-floating anti-collision device is set around the steel truss system; The steel truss system includes support columns, guide columns, tie beams, support beams and wear-resistant plates. The support columns are vertically installed in the middle of the cap, and the guide columns are vertically installed along the edge of the cap, forming a rectangular or elliptical Shaped structure system, multiple guide columns are connected by horizontal tie beam welding or bolts, the guide columns and support columns are connected by horizontal support beam welding or bolts, the collision surface of the guide columns is welded, plug welded or bolted With wear plate; The self-floating anti-collision device is spliced by multiple segments and can move up and down with the water level. 2. A steel truss-composite material hybrid anti-collision protection system for bridge piers according to claim 1, characterized in that: the cross-sectional shapes of the support columns, guide columns, tie beams and support beams are I-shaped, square Tube type or channel type, the steel used is Q235 ordinary carbon steel plate. 3. A steel truss-composite material hybrid anti-collision protection system for bridge piers according to claim 1, characterized in that: the height of the self-floating anti-collision device is 2-3 meters, and the section is cylindrical or box-shaped type.