Mobile bridge subjects the loading test by a few vehicles※1

Assistant Professor Dr. Ichiro Ario in Hiroshima University conducted the open experiment of an emergency bridge (Mobile bridge) in Fuji, Shizuoka on 12^th September 2013.

In order to realize quick disaster restoration for a bridge, "Mobile bridge" as industry-university joint development has been carried out the structural experiment at where it assumed the disaster site with star light-metal-industry Co., Ltd. Akashin Co., Ltd, Sankyo Inc. materials company and Japan construction machinery construction association construction technical research institute. This type of Mobile bridge equipped the oil hydraulic pressure system with the most completed model.

It is a new type of bridge which secured the expanding and/or folding function and strong stiffness of the bridge by considering it as the special structure with which main structural members were made to chain by scissors structure of X-shape.

As a bridge, it is a world's first (maximum, the fastest, and strongest) structure, and a bridge and a run way interlock and develop.

Full length is about 20 meters and it can be passed through it by vehicles.

Although the first open day of extension deployment of Mobile bridge was conducted in Fukuyama in April, 2013, it was opened the scene where vehicles ran a bridge to persons in charge, such as reporters, government officers, and also had participants actually do run experience on this time.

From now on, improvement is repeated further and development is furthered towards utilization.

Assistant Professor Ario explaining the structure of a mobile bridge

The mobile bridge under deployment

※1 Although three vehicles (3.4tf (application-limits vehicles load is estimated 12tf)) were loaded in the experiment at the time of 1 public presentation, assume that I regulate an employment top to one set, and have it safely crossed to on a bridge.

Since this bridge structure is flexible structure, impact energy such as earthquakes, can be flexibly disappeared rather than earthquake-resistance.

Reinforcement is also possible after deployment. Height also changes the floor version length and component length, a geometric condition satisfies it, and it is possible to make it high.

【Inquiries】

Assistant Professor Ichiro Ario

Graduate School of Engineering, Hiroshima University

TEL：082-424-7828・7819　Mail：bridge2＊hiroshima-u.ac.jp

Public Relations Group,

Hiroshima University

E-mail koho(AT)office.hiroshima-u.ac.jp

※Please replace (AT) with @.