Student written Research Laboratory Guidebook 2027Nagaoka University of Technology

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Steel Structure Laboratory

Professor / IWASAKI Eiji  Associate Professor / HAYASHI Gen  
Technical Staff / YAMAGUCHI Takayuki
  • Maintenance of bridges for the future
  • Jobs that remain on the map
  • Laboratory for cultivating practical technical skills

Professor / IWASAKI Eiji, Associate Professor / HAYASHI Gen
Professor Iwasaki is conducting research on the redundancy assessment of steel structures, as well as evaluating the load resistance of existing structures and studying the corrosion environment and corrosion assessment.

Research Content

Bridges are vital structures supporting comfortable living. Our steel
structure lab focuses on researching bridges using steel. Different bridge
types exhibit various characteristics and properties. We analyze their
behavior, conduct finite element analysis using the DIANA software,
investigate corrosion in bridges using weather-resistant steel.
Additionally, we are actively conducting research on FRP. Aiming to expand its application scope in bridge repairs and construction sites, we are experimentally measuring its behavior to verify repair effectiveness and other aspects.

A Day in the Lab

Our Steel Structures Laboratory does not enforce core hours, allowing each member to pursue research at their own pace. Research primarily focuses on steel-related topics such as structural analysis and experiments. Additionally, a monthly seminar is held for the entire group. During these seminars, members present on various themes—including research progress and practice for paper presentations—and receive feedback from faculty and peers to enhance their learning. Furthermore, the group engages in diverse activities to deepen expertise, such as participating in domestic and international conferences.

Thesis Subjects

  • (M)Performance Evaluation of High-Strength Bolt Friction Joints for Establishing Design Methods for GFRP Joints
  • (M)Study on the Buckling Strength of I-Beams Subjected to Negative Bending with Corrosion-Induced Thinning in the Lower Flange
  • (M)Study on the Buckling Strength of Truss Bridge Compression Members with Two Corrosion Cuts on One Side

The number of
PhD Graduates

14

Major employers of Graduates

  • NIPPON ENGINEERING CONSULTANTS CO., LTD.
  • CHODAI CO.,LTD.
  • Yachiyo Engineering Co., Ltd.
  • Oriental Consultants Co., LTD.
  • Yokogawa Bridge Holdings Corp.
  • KAWADA INDUSTRIES, INC.
  • East Japan Railway Company
  • Central Japan Railway Company
  • NIPPON STEEL TEXENG.CO.,LTD.
  • Tokyo Gas Engineering Solutions Corporation
Writer : IKEDA Ru, Civil and Environmental Engineering
(Nagaoka Ohte High School)