The many Advantages of the Incremental Launching Bridge
The incremental bridge launching method consists of building a complete bridge deck from one abutment of the bridge only. The superstructure segments are constructed in a casting yard behind the bridge abutment. Each segment is matchcast against the previous one and then prestressed onto the section of the superstructure that’s already been built. The superstructure is then hoisted forward equal to the length of the specific segment. You repeat this process until you reach the other side and the bridge is complete.
The ILM bridge method is very effective compared to other bridge launching methods, despite that the incremental bridge launching method usually has higher material demands. It could be compared to an on-site factory for the bridge segments providing a plethora of advantages – advantages which we will introduce to you in this article.
5 advantages of the ILM bridge method
Constructing bridges is a complex and time-consuming process even in straight and simple terrains. Now, try to imagine how valleys, areas with poor soil or water conditions affect the construction process. Equipment limitations or limited or restricted access can cause great time delays. The innovative ILM bridge method pretty much nullifies all these challenges and is often the method of choice for the most complex bridge construction projects.
Faster and more efficient
The incremental bridge launching method is one of the fastest and most efficient methods available. Most of the bridge segments and the advancement of the bridge over the pillars happen in fixed instalments with repetitions in both design and the process of fixing the segments. This speeds up the construction significantly since there won’t be any need for unique adjustments for each segment. The segments are advanced ahead in small increments, thus allowing for a fast and easy bridge construction process.
Valleys, steep slopes, streams, and other water bodies all provide a challenge to work around. Having to go back and forth with precast bridge segments can at times be difficult, or even impossible. The incremental bridge launching method’s biggest advantage is that the majority of the construction work can take place from the prefabrication areas.
Regardless of the project, all construction and assembly come with certain risks. Using the incremental bridge launching approach minimizes the risk of the construction work substantially since all the construction and assembly processes are done on-site of the prefabrication area. The lower elevation levels and not having to work around bridge pillars or half-constructed platforms also play a part in the increased safety of the ILM bridge method.
Less and smaller equipment
Due to the segments being constructed on-site, the complete project requires both less and smaller equipment, tools, and machines to deliver materials to constructed areas of the platform since all the construction and assembly takes place in the prefabrication area.
Minimal disturbance to terrain
Another advantage of the incremental bridge launching approach is that the disturbance to surrounding areas will be minimal, including environmentally sensitive areas. This is due to the fact that the launching process takes place from the prefabrication area, thus reducing the disturbance of surrounding landscape and trees compared to conventional methods.
Learn more about Bygging-Uddemanns ILM bridge method
Contact us for more information to learn more about our ILM bridge method and how we can help you construct bridges faster, easier, and safer. Read more about our bridge launching methods.
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