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本文论述了安定定理的基本概念。对三根钢筋砼连续梁和三榀钢筋砼门架进行交变荷载试验表明,试验结果与理论安定分析是一致的,从而初步证明了安定定理同样适用于钢筋砼结构。 理论分析和试验都表明,交变荷载比同样大小的简单加载情形更为不利。考虑交变荷载作用,按安定极限状态进行设计,可获得确切的可靠度和一定的经济效果。
This article discusses the basic concepts of the stability theorem. The alternating load tests of three reinforced concrete continuous beams and three concrete reinforced concrete truss girders show that the test results are consistent with the theoretical stability analysis, thus preliminarily demonstrating that the stability theorem also applies to reinforced concrete structures. Theoretical analysis and experiments have shown that the alternating load is more disadvantageous than the simple loading of the same size. Considering the action of alternating load and designing according to the limit state of stability, the exact reliability and certain economic effects can be obtained.