open-web grid

Based on the clue that the open-web grid and the open-web sandwich plate are composed of the open-web trusses in several directions, the stiffness variety of the plane open-web truss is studied.
在理論分析的基礎(chǔ)上，對(duì)空腹網(wǎng)架、空腹夾層板進(jìn)行了剛度性能的分析，認(rèn)爲(wèi)空腹網(wǎng)架、空腹夾層板是由多曏空腹桁架交叉組成。