Bollards are used in a myriad of applications, for one of various purposes. One needs only to keep a sharp eye to view bollards around us every single day. In parking lots, driveways, and drive-thru lanes, bollards are utilized 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 essential for safeguarding pedestrians as well as guarding storage racks and capital equipment from fork truck collisions.
Other industries which look for a heavy usage of steel bollards price include automated car wash facilities, self-storage facilities, gasoline stations and convenience stores, propane dispensing, and parking garages, amongst others.
Foundation mounted bollards are usually set up in among two ways. The very first, least expensive way, is with a plate mounted bollard. These bollards are steel pipes welded to a flat steel plate which can be anchored to some hard surface using concrete anchors. This method of installation is fast and inexpensive, requiring the installer to drill four to eight holes in the concrete and bolt along the bollard with expansion or screw anchors.
The downside to this installation method, when combined with a rigid bollard, is the fact that anchors are generally not sufficiently strong to resist 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 capable of properly serve its purpose. Plate mounted bollards often require constant maintenance and replacement.
The second technique for installing bollards involves employing a longer steel pipe and burying a percentage of this deep in the earth. This method provides the bollard far more strength than surface mounted, however it could be extremely expensive to set up in the event the surface is concrete and already poured. Installation in this case requires coring an opening in the surface utilizing an expensive diamond bladed coring saw. These appliances as well as their blades are pricey and require water cooling, developing a mess during installation. After the concrete is cored and the bollard is at place, the hole has to be backfilled with concrete to secure the bollard. For added strength, these bollards tend to be filled with concrete, also. Though the bollard pipe itself is comparatively cheap, this installation technique is costly and time intensive.
Although quite strong, you will find significant disadvantages to core installations. Most significantly, there is no 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 prone to occur. Further, the bollard or its foundation could be damaged by this type of impact, again leaving a tilted and much less effective barrier requiring costly maintenance to correct. Frequently the steel bollard itself is beyond repair and should get replaced with 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, equipment is often moved and rearranged. Bollards utilized to protect equipment or storage racks that are core-installed usually are not easily moved. The concrete surrounding the bollard should be broken out and also the large remaining hole filled, leaving a factory floor packed with unsightly patches. When the bollard is reusable after removal, the complete expensive installation process is started over on the new location.
Some designs have been developed to attempt to solve these issues with the use of plastic or spring loaded bollards, however these designs are afflicted by 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-term durability. Minor collisions often wear away at such devices, as well as in outdoor applications UV degradation gets to be a concern.
Designed and patented in Europe by Belgian inventor Gerard Wolters is actually a unique system which solves many of the problems connected with traditional foundation mounted bollards. Simply put, the program uses a compressed rubber base to do something as 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 system is connected 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 an exclusive ductile cast iron, which makes the pieces less brittle than typical cast iron, and also has an extremely low (-40 degrees) brittleness temperature. The steel pipe which may serve as the bollard post is a typical steel pipe inserted in to the adapter. Standard pipe is used to provide the conclusion user the flexibleness to weld fencing using standard components if needed. Concrete fill is not required within the bollard pipe, though is permitted. In fact, sign posts may be inserted into the post and concrete filled in place.
Upon collision, the pipe and adapter are permitted to tilt within the base, forcing the adapter to help compress the elastomer toward 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 vehicle from the bollard and going back to a vertical position. The tilt from the pipe is limited to approximately 20 degrees at which point the bollard can become rigid.
Bollards are created in a variety of sizes, each of which can be right for various expected collision speeds and masses. Further, modular connectors which could be used to create fencing and guards from multiple base units have already been created to eliminate welding. By making use of multiple base units, the greatest strength in the rebounding bollard unit can be increased.
These new bollards utilize the more simple way of surface installation, greatly reducing installation costs, while keeping the flexibility to go bollards as conditions warrant. This is accomplished minus the normal drawback to lack of strength, as the elastomer within the bollard system greatly reduces the maximum impact forces put on the base anchors. The reason being deceleration of an impacting vehicle is much less severe than during an impact using a rigid bollard. Energy is transferred to the elastomer rather than right to a rigid post, reducing the harsh impact of the relatively immovable object.
This leads straight to the most crucial benefits of the brand new bollard system and that is the reduction of harm to both offending vehicles and also to the bollard system itself. Direct injury to vehicles is reduced due to the lowering of peak impact force seen through the vehicle. Not only will this avoid damage to the car, but the chance of trouble for a passenger is likewise reduced. With regards to a fork lift in a factory or warehouse, the possibility of a thrown load is additionally reduced, avoiding the chance of bystander injury and stock loss.
Finally, injury to the bollard as well as its foundation is reduced. Because the post is constructed of strong steel pipe, it maintains its strength, but due to the forgiving nature, much less force is moved to the building blocks. This simplifies and eliminates maintenance while preserving an aesthetically pleasing facility.
These bollards must be installed 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 may be affordable to pour a concrete pad and eliminate years of costly maintenance and asphalt repair. As earlier mentioned, each bollard is sized for expected loads with regards to mass and speed. Should that limitation be exceeded, it is possible to break a part of the system. Probably which involves the post, adapter, or base. Fortunately, the device is modular and simply repaired. Posts could 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 lots of the problems involved with bollard collisions in addition to installation and maintenance issues. Damage to vehicles, passengers, vehicle loads, and also the locking bollards themselves is greatly reduced because of the absorption of impact energy by an elastomer hidden in the base of the bollard. This elastomer allows the bollard to tilt when impacted and return upright afterward. SlowStop Bollards are quick and inexpensive to set up, flexible because they are easily moved, and straightforward to keep if there is the requirement. Safety fencing and barriers are easily created using modular connectors, avoiding the necessity to weld pipe together.