Bollards are utilized in a myriad of applications, for one of several purposes. You need only to keep a sharp eye to see bollards around us each day. In parking lots, driveways, and drive-thru lanes, bollards are utilized to protect buildings, teller machines, utilities including 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 in addition to guarding storage racks and capital equipment from fork truck collisions.
Other industries which locate a heavy use of steel bollards for sale include automated car wash facilities, self-storage facilities, service stations and convenience stores, propane dispensing, and parking garages, amongst others.
Foundation mounted bollards are usually installed in one of two ways. The very first, most affordable way, is by using a plate mounted bollard. These bollards are steel pipes welded to a flat steel plate that may be anchored to a hard surface using concrete anchors. This method of installation is fast and inexpensive, requiring the installer to drill four to eight holes within the concrete and bolt on the bollard with expansion or screw anchors.
The down-side to this installation method, when used in combination with a rigid bollard, is the fact that anchors are generally not strong enough to withstand anything over a minor collision. The plate anchors often are pulled up and possibly the plate bends, leaving a post which leans and has stopped being capable of properly serve its purpose. Plate mounted bollards often require constant maintenance and replacement.
The 2nd technique for installing bollards involves utilizing a longer steel pipe and burying a part of this deep in the earth. This technique gives the bollard far more strength than surface mounted, however it can be extremely expensive to set up when the surface is concrete and already poured. Installation in this case requires coring a hole inside the surface using an expensive diamond bladed coring saw. These machines and their blades are pricey and require water cooling, making a mess during installation. When the concrete is cored and also the bollard is within place, the hole should be backfilled with concrete to secure the bollard. For more strength, these bollards tend to be filled with concrete, as well. Although the bollard pipe itself is comparatively cheap, this installation method is costly and time-consuming.
Although very strong, you can find significant disadvantages to core installations. Most significantly, there is no give this technique upon impact. Though desired in high security applications, any vehicle impacting such a bollard will likely be significantly damaged as well as 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 can be damaged by such an impact, again leaving a tilted and fewer effective barrier requiring costly maintenance to correct. Frequently the steel bollard itself is beyond repair and should be replaced with the entirely new bollard.
Another downside of this sort of installation is that it is actually a permanent installation with little flexibility for movement. In factory applications, devices are often moved and rearranged. Bollards used to protect equipment or storage racks that are core-installed usually are not easily moved. The concrete all around the bollard has to be broken out and the large remaining hole filled, leaving a factory floor full of unsightly patches. If the bollard itself is reusable after removal, the complete expensive installation process is started over at the new location.
Some designs have already been created to make an effort to solve these issues with the use of plastic or spring loaded bollards, however these designs have problems with too little strength. When the plastic is of insufficient stiffness, the complete function of access denial is lost. On the contrary, very stiff plastic designs have gotten difficulty with long-term durability. Minor collisions often 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 really a unique system which solves many of the problems connected with traditional foundation mounted bollards. In other words, the program utilizes a compressed rubber base to behave 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 system is mounted on concrete using concrete anchor screws. These anchors affix the base component within the adapter, which pre-compresses the elastomer from the ground. The base and adapter pieces are made of an exclusive ductile cast iron, that 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 utilized to offer the conclusion user the flexibility to weld fencing using standard components if required. Concrete fill is not required in the bollard pipe, though is permitted. In fact, sign posts may be inserted into the post and concrete completed place.
Upon collision, the pipe and adapter are allowed to tilt within the base, forcing the adapter to help compress the elastomer toward the impact. The elastomer absorbs a lot of the power from the impact and lengthens the deceleration time of the automobile. The elastomer is of sufficient strength to then rebound, usually pushing the vehicle out of the bollard and returning to an upright position. The tilt in the pipe has limitations to approximately 20 degrees at which point the bollard can become rigid.
Bollards are created in a number of sizes, each of which is appropriate 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 using multiple base units, the greatest strength in the rebounding bollard unit could be increased.
These new bollards make use of the much simpler way of surface installation, greatly reducing installation costs, while maintaining the flexibleness to move bollards as conditions warrant. This really is accomplished without the normal drawback to absence of strength, because the elastomer inside the bollard system greatly decreases the maximum impact forces placed on the base anchors. This is because deceleration of an impacting vehicle is much less severe than throughout an impact using a rigid bollard. Energy is moved to the elastomer as opposed to directly to a rigid post, decreasing the harsh impact of the relatively immovable object.
This leads straight to the most crucial features of the brand new bollard system and that is the lowering of injury to both offending vehicles as well as the bollard system itself. Direct injury to vehicles is reduced because of the lowering of peak impact force seen from the vehicle. This will not only avoid damage to the car, but the chance of injury to a passenger is likewise reduced. In the case of a fork lift in a factory or warehouse, the possibility of a thrown load is additionally reduced, avoiding the opportunity 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 its forgiving nature, a lot less force is moved to the cornerstone. This simplifies and eliminates maintenance while preserving an great looking facility.
These bollards should be installed on concrete, as an asphalt surface is not of adequate strength to anchor the bollard system. Thinking about 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 earlier mentioned, each bollard is sized for expected loads with regards to mass and speed. Should that limitation be exceeded, it really is possible to break a element of the device. More than likely which involves 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 can be replaced by carefully taking out the concrete screw anchors and replacing the component.
The SlowStop Bollard product is an innovative new product which solves lots of the problems associated with bollard collisions along with installation and maintenance issues. Damage to vehicles, passengers, vehicle loads, as well as the removable bollards with locks themselves is cut down tremendously as a result of absorption of impact energy by an elastomer hidden in the bottom 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 straightforward to maintain should there be the requirement. Safety fencing and barriers can be created using modular connectors, avoiding the requirement to weld pipe together.