Road Crash Barriers
Jiangsu Guoqiang Singsun Energy Co., Ltd. is located in Liyang, Changzhou City, Jiangsu Province. It has more than 1300 employees and belongs to Jiangsu Guoqiang Group, one of the top 500 Private Enterprises in China. GQ Singsun ,focusing on providing advanced intelligent PV tracking solution supporting system and intelligent manufacturing service provider, is a global clean energy science and technology enterprises, is committed to promoting energy change, constantly optimize the energy infrastructure and the applications of the materials, to build a better future for human being. It has accumulated over 30 GW production and installation of pv support system.
Why Choose Us？
Quality control
For each process,we have strict inspection standards,and we always insist that quality is life.
One-stop solution
With rich experience and one-to-one service,we can help you choose products and answer technical questions.
Competitive price
We have a professional purchasing team and costing team,trying to reduce costs and profits,and provide you with a good price.
24h online service
You can contact us to inquire about pre-sales, sales, and after-sales services, and we will give you a very satisfactory.We are at your service online 24 hours a day.
Crash Barriers reduce the damage from the impact of a moving vehicle, generally by the use of a horizontal beam mounted on vertical posts. They can offer protection to the occupants of the impacting vehicle or whatever is behind the barrier such as a building, racking, machinery or people, such as a work force or members of the public.
Benefits of Road Crash Barriers
Enhancing safety on the roads
Help in minimizing the impact of collisions
Need very less maintenance
High visibility
Strong and durable
Types of Road Crash Barriers
W-beam guardrails
These are the most common type of crash barrier and are often used on highways. They consist of a series of W-shaped steel beams and are known for their flexibility and ability to absorb impact energy.
Cable barriers
Cable barriers are made of steel cables strung between posts. They are effective at redirecting vehicles and are often used in the median of divided highways.
Concrete barriers
These are heavy-duty barriers made of precast concrete. They are commonly used to separate opposing traffic on high-speed roads and provide strong protection against vehicle intrusion.
Thrie-beam guardrails
Similar to W-beam guardrails, thrie-beam guardrails have a stronger design and are often used in areas with a higher risk of heavy truck traffic.
Roadside barriers
These are used to defend traffic from roadside obstacles or hazards, such as slopes steep enough to cause rollover crashes, fixed objects like bridge piers, and bodies of water. Roadside barriers can also be used with medians, to avoid vehicles from colliding with hazards within the median.
Median barriers
These are used to put a stop to vehicles from crossing over a median and striking an oncoming vehicle in a head-on crash. Unlike roadside barriers, they must be designed to be smacked from either side.
Bridge barrier
This is planned to hold down vehicles from crashing off the side of a bridge and falling onto the roadway, river or railroad below. It is generally higher than a roadside barrier, to prevent trucks, buses, pedestrians, and cyclists from vaulting or rolling over the barrier and falling over the side of the arrangement.
Work zone barriers
They are used to guard traffic against hazards in work zones. Their distinguishing trait is they can be moved as conditions change in the roadworks. Two common types are present in it that is a temporary concrete barrier and water-filled barrier. The latter is poised of steel-reinforced plastic boxes that are put in place where required linked together toward form a longitudinal barrier, then ballasted with water.
How to Choose a Road Safety Barrier
Choosing the road safety barriers to be preferred, we must keep in mind a series of aspects such as:
The type of road on which to install the device;
The speed limit of the road;
The roadway space.
The first point concerns the average traffic on a specific road section. In this case, it is necessary to evaluate a type of barrier with an adequate level of containment in both urban areas and highways.
If we think that not all drivers respect the required speed limits, there is a necessity to build road barriers with efficient and durable performances.
When you have to choose the “best” barrier, be aware to consider both working width and dynamic deflection.
When you have to choose a bridge rail or a median barrier (and then you must evaluate the space on the roadway) you must consider the working width of the barrier. The working width is connected with the barrier containment level.
What you don’t know is that not all the road barriers with high containment level (considering the H1, H2, H3 levels) have such a low working width.
Resulting with a W1 working width not only ensures the road barrier to safely operate but also saves meters on the road, gaining the necessary space for other road projects on the way where the barrier has been installed, especially when the barrier is applied in the median.
Furthermore, you need to consider the weight of the device during selection: a new jersey barrier weighs up to ten times more than a steel barrier.
And finally, the installation mode. In the assessment of the installation, it is important to carefully evaluate the morphology of the ground to decide whether to install a guardrail barrier or a bridge rail.
Now you may be wondering “what is a bridge rail?”
To well understand the difference, while the guardrail is fixed to the ground using driven posts, the bridge rail is fixed to the ground through resin plus anchoring pins on the concrete foundation. Not all manufacturers of road barriers can design them.
The History of the Crash Barrier!
The crash barrier is something we have along the roads, to restrict the damages and the way out off the road if the accident occurs. And hence, the crash barrier is a protection along the roads, and we have them to try to be on the road, and not destroying your life more than necessary!
How did really this crash barrier being invented for people and for the producing companies in the world? Originally the crash barrier was invented by the Sheffield Steel Corporation of Kansas USA in 1933, and the design of the crash barrier has largely remained the same to date. And we are finding different films about the crash barrier at the Internet, and we can look into the technology and try to understand what has ever happened, and how this really occurred, and why it was like it was. The placement of these crash barrier should be appropriate for cars, buses and trailers driving into the roads, and if they did not manage to master the motor vehicle, the crash barrier should be there to protect, and it should not be placed too high or too low along the road.
What are really these crash barrier along the roads? Roadside barriers are used to protect traffic from roadside obstacles or hazards, such as slopes steep enough to cause rollover crashes, fixed objects like bridge piers, and bodies of water. Roadside barriers can also be used with medians, to prevent vehicles from colliding with hazards within the median. And sometimes, we are driving when we should not be on the roads, and sometimes we have not slept enough, and sometimes we are not carefully enough with treating the motor vehicles and/or the bike, and if we are getting accidents along the roads, we should try to protect humans and their lives as good as possible. And the fewer accidents and injuries that happen, the better the situation is along the roads. And we should have enough and good qualities roads, and we should take care of any incident that can happen, and sometimes people are either guilty or innocent, and we should design the things that can happen in such ways that we get little risk of unwanted things to happen.
How They Test Vehicle Crash Barriers
Anti-ram barriers, K-Ratings, and ASTM certification
Anti-ram barriers are crash barriers installed against head-on intrusion. Bollards, fences, wedge barriers, and drop beams are common anti-ram barriers. Many of these are engineered to work as anti-terrorist barricades. The strongest are designed to stop a heavy-duty attacking vehicle, possibly carrying an explosive payload, from getting to the wall of a building or to a line of pedestrians.
To judge how effective the barrier might be, the Department of Defense developed a “K-rating” system in the 1980s. Major government buildings used these K-ratings as a guide when creating perimeter defenses.
Soon, engineers and site planners saw the utility of anti-ram barriers for more commonplace scenarios. Barriers with vehicle stopping power are a useful safety measure from everything from preventing smash-and-grab robberies to protecting utilities boxes. Every day, an average of 60 vehicles crash into storefronts, causing serious injury and property loss. Engineers quickly adapted anti-ram barriers of different vehicle-stopping power as useful against accident as much as terrorist attack.
As anti-ram barriers became increasingly civilian, ASTM International (American Society for Testing and Materials) began to test and certify their stopping power, taking over from the Department of Defense. There are two major ASTM standards available, for high-speed and low-speed crashes.
Crash standards: ASTM F2656 and ASTM F306
Low-speed crash standards are laid out in ASTM F306 / F3016M. This protocol tests the stopping power of a barrier against a 5000-lb vehicle at 10–30 mph. The low-speed standard is less commonly referenced than ASTM F2656 / F2656M, the “Standard Test Method for Crash Testing of Vehicle Security Barriers.” ASTM F2656 is used for such barricades as bollards, drop beams, wedges, and security fences.
When testing barriers for stopping power, the ASTM protocol assigns a base rating and a penetration rating. The weight and speed of the test vehicle are encoded in the base rating. The penetration rating shows how far past the crash barrier the test vehicle’s chassis manages to infiltrate.
Vehicle weights tested are small passenger vehicle, pickup truck, medium duty truck, and heavy-duty truck. These can be tested at 30–60 mph. Penetration ratings start at P1, less than 3.3 ft ingress, and this is generally accepted to be the “passing” standard for each speed rating.
Certifications
Our Factory
FAQ
We're professional road crash barriers manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized road crash barriers at low price from our factory. Contact us for quotation.
H Galvanized Highway Guardrail, Guardrail Post For Highway Crash Barriers, Highway Guardrails