“混凝土不被压碎而仅被压短,简直是天方夜谭,我从未见过。即使有可能,没有很精密的测量仪器,单凭肉眼能看到吗?”有人如是说。如果你有幸接触工业厂房的薄腹梁制作,利用普通的钢卷尺就能观测到这个“天方夜谭”了。在薄腹梁的预应力钢筋张 “Concrete is not crushed and is only compressed. It is a fantasy. I have never seen it. Even if it is possible, there are no sophisticated measuring instruments. Can we see it with the naked eye alone?” Someone said. If you are fortunate enough to have access to thin-girder production at an industrial plant, you can observe this “Arabian Nightsale” using ordinary steel tape measures. Prestressed steel bars in thin webs