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基于“塑性铰”的基本理论和假定,提出了体外预应力结构体外索极限应力的分析方法和公式推导。实验结果表明,利用“塑性铰法”进行体外预应力结构设计是一种比较精确的方法。
Based on the basic theory and assumption of “plastic hinge ”, the analytical method and formula derivation of extra-corporeal stress of extra-corporeal prestressing structure are proposed. Experimental results show that the use of “plastic hinge method ” for prestressed structural design in vitro is a more accurate method.