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本文介绍了工作应力法、荷载系数法和内应力法应用于混合、单一钢梁和梁桥结构的检定.用这三种方法对有代表性的跨径范围较大的16座桥梁进行了检定。对这些不同方法的检定系数进行了比较并用线性回归法描述了它们与跨径的相互关系。回归的结果允许工程师在普遍承认的工作应力法的基础上,用荷载系数法、内应力法预测检定系数的增加值。
This paper introduces the working stress method, the load factor method and the internal stress method applied to the testing of the hybrid, single steel beam and beam bridge structure.The 16 bridges with the representative large span range are tested by these three methods . The validation coefficients for these different methods were compared and their correlation to span was described by linear regression. The result of the regression allows the engineer to predict the added value of the test coefficient using the load factor method and the internal stress method on the basis of the generally accepted working stress method.