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以四片模型梁试验实测结果为依据,探讨了基频法评估桥梁使用性能的可行性.粉煤灰高性能混凝土桥梁疲劳试验结果表明:32m简支梁在设计荷载作用下的使用性能满足设计要求,同时,用基频法评估桥梁结构使用性能的方法简捷,可靠性较高,便于实际应用,具有广泛的工程使用价值.图5,表4,参6.
The feasibility of using the fundamental frequency method to assess the serviceability of the bridge is discussed based on the experimental results of the four-piece model beam test.The fatigue test results of the fly-ash high performance concrete bridge show that the serviceability of the 32m simply supported beam meets the design requirements under the design load Requirements, at the same time, the basic frequency method to assess the bridge structure performance using the method is simple, high reliability, ease of practical application, with a wide range of engineering value.