YesterdayTomorrow.Today. 圣.中国 Chuang.Li
Yesterday is history. Tomorrow is mystery. 5678.Today

钢筋上下铁区分

上铁是指面筋或者是负筋,下铁是指底筋

图中的X向16@100和Y向的C14@150为下铁,一般图中两端为135度弯勾时,为下铁,两端为90度弯折时,为上铁。

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