Laminated sections are trend-setting steel sections which are identified by complicated shapes with low buckling modes and increased sectional inertia, which makes it a preferred choice for many engineering designs.Laminated sections are created by pooling two or more parallel boards in a pre-defined pattern.
The use of laminated sections is becoming increasingly popular in the bridge design and other engineering applications. It is popular because of its numerous benefits over traditional sections. Laminated sections are lightweight and offer higher strength with lower cost, as they are manufactured in a factory and require less labor than standard steel sections.
Laminated sections also have a low buckling mode, which eliminates the need for expensive materials and complicated steel sections. By using only two-board elements instead of the complicated three-board girders, buckling is less likely to occur. For example, if a bridge girder is constructed using the three-board system, buckling could potentially occur before the ultimate load is reached.
The use of these sections also reduces material waste as the fabricators can cut exactly to the shape they need. Furthermore, they can also be adjusted slightly when needed to meet the exact requirements of a design.
Laminated sections are popular in bridge structures because the load is distributed uniformly throughout the sections. This results in less stress in the steel and more safety for the overall structure.
The final benefit of using laminated sections is the reduced cost. The sections are usually 11% cheaper than traditional steel sections. This is due to the lower manufacturing costs associated with the sections, as well as the fact that the sections are usually more lightweight.
Despite the numerous benefits, there are certain cautionary measures that should be taken when using laminated sections. The sections are sensitive to fire, and can quickly become warped or warped in extreme temperatures. Additionally, the sections must be constructed with the correct welds and must be monitored, tightening or re-locating existing welds as the structure ages.
In conclusion, the use of laminated sections is increasingly popular due to their numerous advantages over traditional steel sections, such as lower cost, higher strength and lower buckling mode, as well as reduced material waste. Despite the advantages, caution must be taken in order to keep the structure safe and reliable.
