noun
Technical term in reinforced concrete construction; refers to the lateral reinforcement bars (stirrups) that wrap around the main longitudinal bars in beams and columns.
See also: スターラップ
梁のあばら筋は、せん断補強のために配置される。
Stirrups in a beam are arranged for shear reinforcement.
あばら筋の間隔は設計図に従って決められる。
The spacing of stirrups is determined according to the design drawings.
Katakana loanword for the same concept; あばら筋 is the native Japanese term used in technical contexts.
Compound of あばら (rib) and 筋 (bar/line), referring to the rib-like arrangement of the reinforcement bars.