Research keywords (15):
土木史
, 図面
, 鋼橋
, maintenance
, repair
, historical bridge
, civil engineering planning
, construction industry system
, maintenance
, steel bridge
, construction industry history
, historical steel bridge
, civil engineering history
, steel structure
, bridge
Japan Society of Civil Engineers
, Institution of Civil Engineers
, 日本鋼構造協会
, Japan steel Bridge Engineering Association
, 建設産業史研究会
, Construction History Society