Self floating bridge anti-collision facilities, new pier anti-collision facilities

  Introduction to anti-collision facilities of self floating composite bridges anti-collision facilities of self floating composite bridges are anti-collision facilities installed around bridge piers
With the height of water level on the river (river channel and sea surface), they rise and fall up and down along the pier axis depending on their own buoyancy, and are always at the collision height of ships

According to the specifications of the fortified bridge or bearing platform, when there is a large difference between the highest water level and the lowest water level, and the vertical dimension of the pier or bearing platform is the same or changes little, the self floating bridge anti-collision facilities can be used to make it float on the water surface with the rise and fall of the water level and always be on the collision surface, so as to protect the bridge or bearing platform from being directly impacted by ships

The anti-collision facility of self floating composite bridge is composed of composite shell, internal energy dissipation lattice web, filled energy dissipation closed hole energy absorbing material and component connection mechanism, and inner damping element

The composite shell has good corrosion resistance and water resistance
And ultraviolet absorbers and anti-aging agents are added to the outer surface of the composite to make it more weatherproof

The composite lattice web has very good toughness and rigidity, which can make the interior filled with energy absorbing materials form a closed cabin and act as the skeleton of energy absorbing materials to expand the energy absorption effect

The high-performance closed cell energy absorbing material is a closed cell structure, which can prolong the impact time, absorb the impact kinetic energy and consume energy through extrusion and pressure feeding

The self floating composite anti-collision facilities can be connected by mortise and tenon structure or socket bolt to enhance the strength of the connection structure, ensure the dimensional accuracy of the connection, and facilitate installation and replacement

Anti collision effect of self floating composite bridge anti-collision facilities impact simulation effect of anti-collision facilities:
In this calculation, the most unfavorable impact condition is used for analysis
The impact angle is 0 degrees and the front impact is shown in the figure below
As a reference, the rigid wall at the same angle is used as the working condition of impacting the bare pier, as shown in the figure below

The installation effect of bare pier is shown in the figure below
The bow is obviously deformed
The structural deformation of the bow position absorbs the ship's kinetic energy and forces the ship to stop moving

The anti-collision effect is shown in the figure below
The anti-collision facilities are partially deformed, sharing the dissipation of kinetic energy for the ship

The comparison of impact force is shown in the figure below:
Curve A is the ship impact force on the pier without bridge anti-collision facilities, and curve B is the impact force on the pier with bridge anti-collision facilities
It can be seen from the curve trend in the figure that after the bridge anti-collision facilities are set, the ship impact force can be significantly reduced, the impact time can be prolonged, and the purpose of protecting the piers can be achieved

Characteristics of anti-collision facilities of self floating composite bridges 1
Flexible materials and good energy absorption of impact force
The anti-collision facilities of self floating composite bridges are made of flexible materials and filled with high-performance closed hole energy absorbing materials, which can greatly reduce the ship collision force, effectively protect the safety of people and bridges, and minimize the damage of ships

2
Excellent corrosion resistance, durability, impact resistance and fatigue resistance
Compared with steel bridge anti-collision facilities, composite bridge anti-collision facilities have good corrosion resistance and durability, and do not need maintenance during use;
Good structural performance and can withstand multiple impacts of small boats;
The composite has strong fatigue resistance and good elasticity, and can recover after deformation

3
Light weight, convenient transportation, installation and replacement
The proportion of composite shell is 1 / 4 of that of steel shell, and the proportion of high-performance closed cell energy absorbing material is lighter

The independent unit has light weight and low transportation and hoisting costs

4
The collision can change the ship's course
The anti-collision facility of self floating composite bridge is a fillet structure
When the ship collides with the anti-collision facility, the anti-collision device can push away the bow of the ship so that it will not continue to impact the pier, so as to actively reduce the energy of the ship hitting the pier

5
Good connection form, convenient disassembly, transportation and installation
The anti-collision facilities of self floating composite bridge are composed of multiple independent units, which can be connected by mortise or bolt
It can be disassembled, transported and installed conveniently and efficiently
It is convenient to repair and replace each unit after damage

6
With strong plasticity, applicable bridge anti-collision devices can be designed according to specific pier forms and navigation conditions
7
Beautiful and eye-catching appearance
The appearance of self floating composite bridge anti-collision facilities can be made into any color or pattern and set into eye-catching color or reflective form to improve the safety of piers

Installation diagram of self floating composite bridge anti-collision facilities anti-collision mechanism of self floating composite bridge anti-collision facilities in the protection system of self floating composite bridge anti-collision facilities, when the ship is in close contact with the anti-collision facilities, the cross-section of the anti-collision facilities itself can also bear large impact force
The shell of the cross-section of the facilities is elastic composite materials, and the energy consuming materials filled in it have high shear strength and strong cushioning capacity

Because the anti-collision system of self floating composite bridge has the characteristics of light weight, cushioning and low elastic modulus, it can effectively protect the ship from local damage

The stress mechanism of self floating composite bridge anti-collision facilities is summarized, mainly including the following points:
Good elasticity, long fiber can effectively disperse the impact load and protect bridges and ships at the same time;
High fiber strength and light weight;
Corrosion resistance, good stability, maintenance free, paint free coating;
Green environmental protection materials;
Light weight, convenient transportation, installation and replacement;
The interior is tightly filled with energy consuming materials, and the energy consuming materials rub against each other to consume energy during impact, so as to reduce the impact force;
Small bumps do not break, medium bumps are easy to repair, and large bumps are easy to replace

  Success stories:
  & Nbsp& Nbsp; 1
Hengshui shengte Technology Co
, Ltd
customized and installed self floating composite bridge anti-collision facilities for Daye Lake Bridge

Daye Lake Bridge is a controlling project of Huangshi Yangxin first-class highway project
It crosses Daye lake from north to South and connects tangbu village, Taizi Town, Yangxin County and Liupu village, Wangren Town, Huangshi City
The bridge has a total length of 3967 meters, a deck width of 32 meters, a two-way 6-lane design and a speed of 80 kilometers per hour
The whole bridge is divided into north-south approach bridge and main bridge
The approach bridge is 30m, which is simple first and then connected with prestressed T-beam; The main bridge is a half through concrete-filled steel tubular tied arch bridge with a main span of 120m

Suntech has customized and produced bridge anti-collision facilities suitable for the bridge according to the requirements of customers

2
Hengshui shengte Technology Co
, Ltd
has installed four sets of 500 ton self floating composite bridge anti-collision facilities for zhubu port bridge in Xiangjiang River, Hunan Province
Hunan zhubu port Xiangjiang bridge (Xiangjiang bridge of Shanghai Kunming Expressway) is a super bridge on the expressway from Xiangtan to Shaoyang
It is located in Xiangtan city
The bridge is 1178
5 meters long

Hengshui shengte Technology Co
, Ltd
has customized and installed four sets of self floating composite bridge anti-collision facilities for Hunan zhubu port Xiangjiang bridge according to the requirements of customers

Scope of application: composite anti-collision facilities for inland river bridges: the main forms are: fixed anti-collision facilities, self floating anti-collision facilities, steel boxed anti-collision facilities, SF steel composite anti-collision facilities, rectangular, semicircular, circular, irregular, polygonal, etc
, as well as composite anti-collision facilities of different tonnage levels such as 100 tons, 300 tons, 500 tons, 1000 tons and 3000 tons;