Bollards are used in a multitude of applications, for one of several purposes. One needs only 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 such as gas meters, electrical equipment and fire hydrants, handicap parking signs, gate entry keypads, and to restrict use of undesired areas. In factories and warehouses, bollards are important for protecting pedestrians as well as guarding storage racks and capital equipment from fork truck collisions.
Other industries which find a heavy usage of safety bollards for sale include automated car wash facilities, self-storage facilities, gas stations and convenience stores, propane dispensing, and parking garages, and others.
Foundation mounted bollards are generally set up in among two ways. The first, least expensive way, is with a plate mounted bollard. These bollards are steel pipes welded to your flat steel plate that 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 inside the concrete and bolt on the bollard with expansion or screw anchors.
The downside to this particular installation method, when used with a rigid bollard, would be that the anchors are typically not strong enough to stand up to anything over a minor collision. The plate anchors often are pulled up and perhaps the plate bends, leaving a post which leans and is no longer in a position to properly serve its purpose. Plate mounted bollards often require constant maintenance and replacement.
The next method for installing bollards involves utilizing a longer steel pipe and burying a part of this deep in the earth. This process provides the bollard far more strength than surface mounted, however it can be very costly to set up when the surface is concrete and already poured. Installation in this instance requires coring an opening inside the surface employing an expensive diamond bladed coring saw. These appliances along with their blades are costly and require water cooling, developing a mess during installation. Once the concrete is cored and also the bollard is in place, the hole must be backfilled with concrete to secure the bollard. For more strength, these bollards are often loaded with concrete, too. Though the bollard pipe itself is relatively inexpensive, this installation method is costly and time intensive.
Although quite strong, there are significant disadvantages to core installations. Most significantly, there is no share with this method upon impact. Though desired in high security applications, any vehicle impacting this type of bollard will be significantly damaged along with its passengers in danger of injury. Loads carried by fork trucks can be thrown given the jarring impact very likely to occur. Further, the bollard or its foundation may be damaged by this type of impact, again leaving a tilted and less effective barrier requiring costly maintenance to correct. Frequently the steel bollard itself is beyond repair and must get replaced having an entirely new bollard.
Another downside of this sort of installation is that it is really a permanent installation with little flexibility for movement. In factory applications, tools are often moved and rearranged. Bollards utilized to protect equipment or storage racks that are core-installed are not easily moved. The concrete around the bollard should be broken out and 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 is started over at the new location.
Some designs have already been developed to attempt to solve these complications through the use of 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 contrary, very stiff plastic designs have had difficulty with long term durability. Minor collisions tend to wear away at such devices, and in outdoor applications UV degradation gets to be a concern.
Designed and patented in Europe by Belgian inventor Gerard Wolters is really a unique system which solves most of the problems connected with traditional foundation mounted bollards. In other words, the system uses a compressed rubber base to do something being an energy absorbing mass. This elastomer allows the bollard to tilt slightly when impacted, in the range of 20 degrees from vertical, then return upright while still stopping the colliding vehicle.
This method is attached to concrete using concrete anchor screws. These anchors affix the base component over the adapter, which pre-compresses the elastomer from the ground. The base and adapter pieces are made from a unique ductile cast iron, which makes the pieces less brittle than typical cast iron, and also has a really 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 utilized to offer the end user the flexibleness to weld fencing using standard components if required. Concrete fill is not required in the bollard pipe, though is permitted. Actually, 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 power from the impact and lengthens the deceleration time of the vehicle. The elastomer is of sufficient strength to then rebound, usually pushing the car away from the bollard and going back to an upright position. The tilt in the pipe is limited to approximately 20 degrees at which point the bollard will become rigid.
Bollards are designed in a selection of sizes, every one of that is suitable for various expected collision speeds and masses. Further, modular connectors which could be used to create fencing and guards from multiple base units happen to be created to eliminate welding. By utilizing multiple base units, the best strength from the rebounding bollard unit can be increased.
These new bollards make use of the more simple approach to surface installation, greatly reducing installation costs, while keeping the flexibility to go bollards as conditions warrant. This can be accomplished without the normal downside of lack of strength, as the elastomer within the bollard system greatly reduces the maximum impact forces placed on the base anchors. The reason being deceleration of the impacting vehicle is far less severe than during an impact having a rigid bollard. Energy is moved to the elastomer as opposed to directly to a rigid post, reducing the harsh impact of the relatively immovable object.
This leads straight to the most important features of the new bollard system and that is certainly the reduction of damage to both offending vehicles and to the bollard system itself. Direct harm to vehicles is reduced due to the lowering of peak impact force seen by the vehicle. This will not only avoid harm to the vehicle, but the probability of injury to a passenger is likewise reduced. With regards to a fork lift in a factory or warehouse, the risk of a thrown load can also be reduced, avoiding the opportunity of bystander injury and stock loss.
Finally, damage to the bollard and its foundation is reduced. As the post is constructed of strong steel pipe, it maintains its strength, but due to the forgiving nature, significantly less force is transferred to the cornerstone. This simplifies and eliminates maintenance while preserving an aesthetically pleasing facility.
These bollards must be set up on concrete, as an asphalt surface is not really of adequate strength to anchor the bollard system. Taking into consideration the replacement costs of damaged bollards, however, it could 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 easy to break a element of the system. Probably which involves the post, adapter, or base. Fortunately, the program is modular and easily repaired. Posts may 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 removing the concrete screw anchors and replacing the component.
The SlowStop Bollard system is a revolutionary cool product which solves most of the problems included in bollard collisions as well as installation and maintenance issues. Damage 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 bottom of the bollard. This elastomer allows the bollard to tilt when impacted and return upright afterward. SlowStop Bollards are quick and inexpensive to install, flexible as they are easily moved, and simple to maintain should there be the need. Safety fencing and barriers can be created using modular connectors, avoiding the need to weld pipe together.