Bollards are used in a multitude of applications, for one of several purposes. You need just to keep a sharp eye to view bollards around us every day. In parking lots, driveways, and drive-thru lanes, bollards are used to protect buildings, teller machines, utilities like gas meters, electrical equipment and fire hydrants, handicap parking signs, gate entry keypads, and to restrict access to undesired areas. In factories and warehouses, bollards are essential for protecting pedestrians as well as guarding storage racks and capital equipment from fork truck collisions.
Other industries which find a heavy use of steel bollard pricing include automated car wash facilities, self-storage facilities, gas stations and convenience stores, propane dispensing, and parking garages, and others.
Foundation mounted bollards are typically set up in certainly one of two ways. The first, most inexpensive way, is to use a plate mounted bollard. These bollards are steel pipes welded to your flat steel plate which can be anchored to some hard surface using concrete anchors. This process of installation is fast and inexpensive, requiring the installer to drill four to eight holes within the concrete and bolt down the bollard with expansion or screw anchors.
The downside for this installation method, when combined with a rigid bollard, is that the anchors are typically not sufficiently strong enough to stand up to anything more than a minor collision. The plate anchors often are pulled up and perhaps the plate bends, leaving a post which leans and is not able to properly serve its purpose. Plate mounted bollards often require constant maintenance and replacement.
The second method for installing bollards involves utilizing a longer steel pipe and burying a part of it deep in the ground. This method gives the bollard a lot more strength than surface mounted, however it could be very expensive to set up in the event the surface is concrete and already poured. Installation in cases like this requires coring a hole within the surface utilizing an expensive diamond bladed coring saw. These machines along with their blades are costly and require water cooling, creating a mess during installation. After the concrete is cored and the bollard is within place, the hole has to be backfilled with concrete to secure the bollard. For more strength, these bollards tend to be loaded with concrete, as well. Even though the bollard pipe itself is relatively inexpensive, this installation strategy is costly and time-consuming.
Although quite strong, there are significant disadvantages to core installations. Above all, there is not any give to this method upon impact. Though desired in high security applications, any vehicle impacting this kind of bollard will be significantly damaged along with its passengers in danger of injury. Loads carried by fork trucks can also be thrown because of the jarring impact likely to occur. Further, the bollard or its foundation may be damaged by this kind of impact, again leaving a tilted and less effective barrier requiring costly maintenance to fix. Usually the steel bollard is beyond repair and should be replaced with the entirely new bollard.
Another drawback to this kind of installation is it is actually a permanent installation with little flexibility for movement. In factory applications, devices are often moved and rearranged. Bollards employed to protect equipment or storage racks which are core-installed usually are not easily moved. The concrete around the bollard must be broken out as well as the large remaining hole filled, leaving a factory floor full of unsightly patches. In the event the bollard is reusable after removal, the entire expensive installation process begins over on the new location.
Some designs have already been designed to attempt to solve these complications by using plastic or spring loaded bollards, however these designs have problems with an absence of strength. When the plastic is of insufficient stiffness, the entire function of access denial is lost. On the other hand, very stiff plastic designs have gotten difficulty with long term durability. Minor collisions tend to wear away at such devices, as well as in outdoor applications UV degradation turns into a concern.
Designed and patented in Europe by Belgian inventor Gerard Wolters is a unique system which solves many of the problems connected with traditional foundation mounted bollards. In other words, the system uses a compressed rubber base to act being an energy absorbing mass. This elastomer allows the bollard to tilt slightly when impacted, in the plethora of 20 degrees from vertical, then return upright while still stopping the colliding vehicle.
This technique is attached to concrete using concrete anchor screws. These anchors affix the base component over the adapter, which pre-compresses the elastomer up against the ground. The base and adapter pieces are created from a special ductile cast iron, making the pieces less brittle than typical cast iron, and also has a very low (-40 degrees) brittleness temperature. The steel pipe which may serve as the bollard post is really a typical steel pipe inserted into the adapter. Standard pipe is used to give the end user the flexibility to weld fencing using standard components if required. Concrete fill is not required within the bollard pipe, though is permitted. In reality, sign posts could be inserted to the post and concrete completed place.
Upon collision, the pipe and adapter are permitted to tilt in the base, forcing the adapter to advance compress the elastomer in the direction of the impact. The elastomer absorbs most of the energy from the impact and lengthens the deceleration period of the car. The elastomer is of sufficient strength to then rebound, usually pushing the automobile from the bollard and returning to an upright position. The tilt from the pipe is limited to approximately 20 degrees after which the bollard will end up rigid.
Bollards are designed in a variety of sizes, all of that is suitable for various expected collision speeds and masses. Further, modular connectors which can be used to create fencing and guards away from multiple base units have been designed to eliminate welding. By using multiple base units, the ultimate strength in the rebounding bollard unit may be increased.
These new bollards use the much easier way of surface installation, greatly reducing installation costs, and keep the flexibleness to maneuver bollards as conditions warrant. This is accomplished without the normal downside of absence of strength, since the elastomer inside the bollard system greatly cuts down on the maximum impact forces applied to the base anchors. This is because deceleration of an impacting vehicle is far less severe than throughout an impact having a rigid bollard. Energy is transferred to the elastomer as opposed to right to a rigid post, lowering the harsh impact of any relatively immovable object.
This leads straight to the most crucial advantages of the brand new bollard system and that is certainly the reduction of harm to both offending vehicles and also to the bollard system itself. Direct injury to vehicles is reduced due to the decrease in peak impact force seen from the vehicle. It will not only avoid harm to the car, but also the chance of injury to a passenger is likewise reduced. With regards to a fork lift in a factory or warehouse, the chance of a thrown load can also be reduced, avoiding the chance of bystander injury and stock loss.
Finally, harm to the bollard along with its foundation is reduced. As the post is constructed of strong steel pipe, it maintains its strength, but due to the forgiving nature, a lot less force is moved to the building blocks. This simplifies and eliminates maintenance while preserving an aesthetically pleasing facility.
These bollards should be placed on concrete, as being an asphalt surface will not be of adequate strength to anchor the bollard system. Taking into consideration the replacement costs of damaged bollards, however, it might be affordable to pour a concrete pad and eliminate numerous years of costly maintenance and asphalt repair. As previously mentioned, each bollard is sized for expected loads when it comes to mass and speed. Should that limitation be exceeded, it is actually easy to break a component of the device. Most likely that concerns the post, adapter, or base. Fortunately, the program is modular and easily repaired. Posts can be replaced by loosening several set-screws, wwbpkl and replacing, and re-tightening the set screws. Adapter and Base components could be replaced by carefully taking out the concrete screw anchors and replacing the component.
The SlowStop Bollard product is an innovative cool product which solves most of the problems associated with bollard collisions along with installation and maintenance issues. Injury to vehicles, passengers, vehicle loads, and the removable lockable bollards themselves is greatly reduced due to the absorption of impact energy by an elastomer hidden inside the base of the bollard. This elastomer allows the bollard to tilt when impacted and return upright afterward. SlowStop Bollards are fast and inexpensive to install, flexible because they are easily moved, and simple to keep up should there be the need. Safety fencing and barriers are easily created using modular connectors, avoiding the need to weld pipe together.