This artical inquires into the buckling shape and effective buckling length both in and out of plane for a compression diagonal with rectangle hoop in the steel light roof trusses which are shuttle in shape 摘要探討了腹桿帶有矩形箍的梭形輕型鋼屋架受壓腹桿平面內(nèi)和平面外失穩(wěn)形態(tài)、腹桿穩(wěn)定性計算長度、連接受拉與受壓腹桿的矩形箍的作用及其對穩(wěn)定性的影響。