CAJ | 학술논문

桥梁在运营过程中结构材质和性能会随着时间退化,进而导致桥梁的承载能力发生改变.以寿命期内大跨径PC斜拉桥为例,首先运用折减系数法,依据桥梁详尽的外观及无损检测结果并结合实测动力参数,确定了各项检算系数,然后通过初始理论值的折减与修正对该桥的承载能力进行了评定,避免了荷载试验耗时费力、中断交通的缺点,可为同类型桥梁的承载能力评定提供参考.
교량재운영과정중결구재질화성능회수착시간퇴화,진이도치교량적승재능력발생개변.이수명기내대과경PC사랍교위례,수선운용절감계수법,의거교량상진적외관급무손검측결과병결합실측동력삼수,학정료각항검산계수,연후통과초시이론치적절감여수정대해교적승재능력진행료평정,피면료하재시험모시비력、중단교통적결점,가위동류형교량적승재능력평정제공삼고.
As the quality and performance of bridge structure material degenerated over the time, the bearing capaci-ty of the bridge would be changed. This paper, taking a long-span PC cable-stayed bridge in working life as a case, firstly identifies the inspecting calculation coefficient by the reduction coefficient method on the basis of detailed ex-terior and non-destructive detection results of the bridge with the measured dynamic parameters. Secondly, the bear-ing capacity of the bridge was assessed by reduction and correction the initial theoretical value. This avoids the load-ing tests which is time-consuming and effortlessly, traffic interruption, providing a reference for the bearing capacity assessment of the same type bridge.