What is the pontoon bridge?
pontoon bridges are floating bridges supported by floating pontoons with sufficient buoyancy to support the bridge and dynamic load. While Ponton bridges are usually temporary structures, some are used for a long time. Permanent floating bridges are useful for protected water crossing, where it is not considered economically feasible to suspend the bridge from the anchored pier. Such bridges may require a section that is increased or can be raised or removed to make the ships pass.
submerged bridges with a floating tube were considered to be used through the ocean straits and even across the oceans. The design of such a tunnel was listed in the novel Alternative History Transatlantic tunnel, Hurray! Harry Harrison. It is estimated that the submerged floating tunnel would be two to three times more expensive than the floating bridge and the technology remains unproven. There is currently no submerged floating tunnel in the world.
pontoon bridges are particularly useful in war like rivers.Such bridges are usually temporary and sometimes destroyed after crossing (to prevent the enemy from using) or collapsed and carried (if it is on a long march). They were used to the big advantage in many battles over time, including the battle for Garigliano, the battle of Oudenard and many others.
When designing the Ponton bridge, the engineer must take into account the maximum load of the load intended for support. Each pontoon can support the burden of the equal weight of the water it sends, but this load also includes the weight of the bridge itself. If the maximum load of the bridge section is exceeded, one or more pontoonons will dive and fall. The road through the pontoon must also be able to support the burden, yet to be light enough to not limit their load capacity.
The preload of modern military equipment for building ponton bridges, floating bridges were usually designed using wood. Such a woodThe eternal floating bridge could be built in a number of sections, starting from an anchored point to the coast. Pontoons were created using ships; Several barrels joined; Voys of Timbers or their combinations. Each section of the bridge consisted of one or more pontoonons, which were maneuated to the position and then anchored. These pontoons were then connected using wooden strings called Balks. Balks were then covered with a number of cross boards to form the road surface, and the boards were held in a place with side rails. The bridge was repeatedly extended in this way until the opposite shore was reached.
measures are required to protect the Ponton bridge from damage. The bridge can be released or flooded whenever the bridge load limit is exceeded. Bridge Potonon can also overload when one part of the volume is weighed much heavier than other parts. The bridge can be adequate to swing or oscillate dangerously due to the regular step of a group of soldiers or from other types of repeated loads. Drift and heavy floatingObjects can also accumulate on pontoon, which increases the thrust from the river stream and potentially damages the bridge.
The longest military pontoon bridge ever built across the river built 1. The armored division of the US Army in 1995. It was collected under unfavorable weather conditions across the Sava River between Croatia and Bosnia and had a total length of 2,034 feet. In 1996 it was dismantled.