天眼查知识产权信息显示,桐乡市苏台高速公路投资开发有限公司、哈尔滨工业大学、浙江数智交院科技股份有限公司取得一项名为“小型车作用下π型钢-混连续刚构桥状态快速诊断方法“,授权公告号CN117589399B,申请日期为2023年10月。
专利摘要显示,小型车作用下π型钢‑混连续刚构桥状态快速诊断方法,涉及桥梁状态诊断方法。针对四跨π型钢‑混连续刚构桥,测量确定主梁全长L;选取L/8和7L/8位置处断面作为桥梁的测试断面;确定加载车辆的轴距、前轴轴重和后轴轴重作为技术指标;采集加载车辆行驶下桥梁测试断面的位移时程;桥梁测试断面位移时程的时空坐标转换;构建测试断面的实测位移矩阵;构建车辆信息矩阵;构建实际准静力位移影响线反演矩阵;桥梁服役状态预警判断。通过小型加载车辆在桥梁行驶全过程中测试断面位移响应的实时获取,向准静力位移影响线转换,同时提出预警判断指标,能够针对四跨π型钢‑混连续刚构桥准确判断桥梁服役状态退化的异常程度。
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