Bollards are utilized in a multitude of applications, for one of various 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 utilized 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 safeguarding pedestrians along with guarding storage racks and capital equipment from fork truck collisions.
Other industries which find a heavy usage of where to buy bollards include automated car wash facilities, self-storage facilities, gasoline stations and convenience stores, propane dispensing, and parking garages, among others.
Foundation mounted bollards are usually installed in certainly one of two ways. The very first, most affordable way, is with a plate mounted bollard. These bollards are steel pipes welded to a flat steel plate which can be anchored to a hard surface using concrete anchors. This process of installation is fast and inexpensive, requiring the installer to drill four to eight holes in the concrete and bolt on the bollard with expansion or screw anchors.
The down-side to this installation method, when combined with a rigid bollard, is the fact that anchors are typically not sufficiently strong to resist anything over a minor collision. The plate anchors often are pulled up and maybe the plate bends, leaving a post which leans and is no longer able to properly serve its purpose. Plate mounted bollards often require constant maintenance and replacement.
The second method for installing bollards involves using a longer steel pipe and burying a part from it deep in the earth. This technique gives the bollard a lot more strength than surface mounted, however it may be very costly to install when the surface is concrete and already poured. Installation in this instance requires coring an opening inside the surface using an expensive diamond bladed coring saw. These machines along with their blades are pricey and require water cooling, making a mess during installation. Once the concrete is cored and the bollard is in place, the hole has to be backfilled with concrete to secure the bollard. For added strength, these bollards are frequently loaded with concrete, also. Even though the bollard pipe is relatively inexpensive, this installation strategy is costly and time intensive.
Although quite strong, you will find significant disadvantages to core installations. Above all, there is absolutely no share with this method upon impact. Though desired in high security applications, any vehicle impacting this kind of bollard will likely be significantly damaged and its passengers vulnerable to injury. Loads carried by fork trucks may also be thrown due to 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. Frequently the steel bollard itself is beyond repair and should be replaced with the entirely new bollard.
Another downside of this type of installation is it is actually 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 which can be core-installed are certainly not easily moved. The concrete around the bollard should be broken out as well as the large remaining hole filled, leaving a factory floor full of unsightly patches. In the event the bollard itself is reusable after removal, the entire expensive installation process begins over on the new location.
Some designs have been created to try to solve these problems through the use of plastic or spring loaded bollards, however these designs suffer from an absence of strength. If the plastic is of insufficient stiffness, the complete function of access denial is lost. On the other hand, very stiff plastic designs have experienced difficulty with long lasting 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 actually a unique system which solves many of the problems related to traditional foundation mounted bollards. To put it simply, the system utilizes a compressed rubber base to behave as being an energy absorbing mass. This elastomer allows the bollard to tilt slightly when impacted, in all the different 20 degrees from vertical, then return upright while still stopping the colliding vehicle.
This system is connected to concrete using concrete anchor screws. These anchors affix the base component within the adapter, which pre-compresses the elastomer up against the ground. The base and adapter pieces are made from an exclusive ductile cast iron, that makes the pieces less brittle than typical cast iron, and has a really low (-40 degrees) brittleness temperature. The steel pipe which functions as the bollard post is actually a typical steel pipe inserted to the adapter. Standard pipe is used to give the final user the flexibleness to weld fencing using standard components if required. Concrete fill is not required inside the bollard pipe, though is permitted. Actually, sign posts may be inserted in to the post and concrete completed place.
Upon collision, the pipe and adapter are allowed to tilt within the base, forcing the adapter to further compress the elastomer in the direction of the impact. The elastomer absorbs a lot of the vitality in the impact and lengthens the deceleration period of the vehicle. The elastomer is of sufficient strength to then rebound, usually pushing the automobile from the bollard and going back to a vertical position. The tilt from the pipe is limited to approximately 20 degrees after which the bollard will become rigid.
Bollards are created in a number of sizes, each of which 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 making use of multiple base units, the best strength in the rebounding bollard unit can be increased.
These new bollards use the much simpler way of surface installation, greatly reducing installation costs, while maintaining the flexibility to move bollards as conditions warrant. This can be accomplished without the normal drawback to lack of strength, because the elastomer within the bollard system greatly cuts down on the maximum impact forces placed on the base anchors. The reason being deceleration of an impacting vehicle is much less severe than throughout an impact using a rigid bollard. Energy is transferred to the elastomer instead of right to a rigid post, decreasing the harsh impact of any relatively immovable object.
This leads straight to the most crucial features of the new bollard system and that is the lowering of harm to both offending vehicles as well as the bollard system itself. Direct injury to vehicles is reduced as a result of lowering of peak impact force seen by the vehicle. This will not only avoid injury to the vehicle, but the chance of trouble for 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, damage to the bollard as well as its foundation is reduced. As the post is constructed of strong steel pipe, it maintains its strength, but because of its forgiving nature, much less force is moved to the foundation. 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. Thinking about the replacement costs of damaged bollards, however, it could be cost effective to pour a concrete pad and eliminate many years of costly maintenance and asphalt repair. As mentioned before, each bollard is sized for expected loads in terms of mass and speed. Should that limitation be exceeded, it is easy to break a element of the system. More than likely that concerns the post, adapter, or base. Fortunately, the program is modular and simply repaired. Posts may be replaced by loosening several set-screws, wwbpkl and replacing, and re-tightening the set screws. Adapter and Base components may be replaced by carefully removing the concrete screw anchors and replacing the component.
The SlowStop Bollard system is an innovative new product which solves many of the problems involved with bollard collisions along with installation and maintenance issues. Damage to vehicles, passengers, vehicle loads, and also the removable bollard themselves is reduced because of the absorption of impact energy by an elastomer hidden inside the lower bollard. This elastomer allows the bollard to tilt when impacted and return upright afterward. SlowStop Bollards are quick and inexpensive to put in, flexible because they are easily moved, and uncomplicated to maintain if there is the necessity. Safety fencing and barriers are easily created using modular connectors, avoiding the need to weld pipe together.