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《铁路标准设计通讯》1972年1期介绍了“混凝土厚壁空心桥墩”。这种桥墩有节省圬工和钢材、减轻基础承载力等优点,给我们很大启发。但该文中应力重分布后最大应力σ_(max)公式有误,第9期第37页上的更正式也沒有说明来源,计算时较繁,此外原文中求应力重分布后应力长度(b-x)缺乏系统的归纳,试算x时也很繁。下面我们试将:①第1期中σ_(max)式有误的
“Railway Standard Design Communication” 1972 年 1 期 “Concrete thick-walled hollow pier.” This kind of piers has the advantages of saving workers and steel, reducing the basic bearing capacity and so on, giving us great inspiration. However, the formula of maximum stress σ_max after stress redistribution is wrong, the more formal norms on page 37 of No. 9 are given, and the calculation is more complicated. In addition, the stress length after stress redistribution (bx) Lack of systematic induction, trial x is also very complicated. Below we will try: ① first period σ_ (max) type is wrong