World's longest 3D-printed bridge in Shanghai, Picture Credit: Xu Weiguo

New Delhi: 3D printing technology is being used in construction and world's largest 3D-printed concrete bridge was recently completed in Shanghai. The Bridge is designed by Professor Xy Weiguo from Tsinghua University in China. As per Arch Daily, the bridge is 26.3 metre-long and is inspired by another ancient Chinese bridge called Anji. It is located across a canal on the Wenzaobang River in Shanghai.

As per the article, Professor Xu Weiguo's team developed a 3D printing concrete system. The system is cost-efficient uses smart technology and digital design to print 3D concrete blocks. A total of 44 hollowed-out 3D printed concrete blocks were used to lay the bridge while 68 concrete units made the handrails.

Xu Weiguo, an architecture professor with Tsinghua University, who built the bridge with his team said that the bridge is much more durable and cost-efficient than traditional construction techniques. The bridge was opened on Saturday and over 100 guests were invited to take a stroll across the bridge.

The concrete units for the bridge were printed by two robotic arms, which took about 19 days time. Since 3D printing technique eliminated templates and reinforcing bars, the bridge construction approximately saved 33% money which means it is very cost-efficient. It is jointly built with Shanghai Wisdom Bay Investment Management Company.

The bridge has sensors that collect displacement data which will be used to improve the design of future bridges constructed using 3D printing. As per Professor Xu, 3D printing is a manufacturing revolution. He said that 3D printing technology reduces the need for skilled. His team is planning to print a house next.

More such 3D printed bridges might be constructed in China and across the world in coming years.

Check out the pictures:

(Picture Credit: Professor Xu Weiguo)

(Picture Credit: Professor Xu Weiguo)

(Picture Credit: Professor Xu Weiguo)

(Picture Credit: Professor Xu Weiguo)