A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Parallel steel strand stay cable multi-stage equivalent tension cable force control method
The invention discloses a parallel steel strand stay cable multistage equivalent tension cable force control method which comprises the following steps: S1, acquiring temperature data of a whole cable-stayed bridge through a temperature acquisition system; s2, collecting elevation data of the cable-stayed bridge through an elevation automatic measurement system; s3, a temperature acquisition system and an automatic elevation measurement system are used for conducting 24-hour measurement once, an elevation and temperature change relation curve is obtained and serves as a correction data reference, and then the stay cable is tensioned for the first time; s4, after the stay cable is tensioned for the first time, the bridge deck crane looses a hook and moves forwards in place, measurement is conducted again through the temperature collecting system and the automatic elevation measuring system, and correction data needed by the beam section temperature and the tension force loss after the crane moves forwards are obtained; and S5, taking the temperature of the beam section after the crane moves forwards and correction data required by the loss of one cable tension force as references, and then carrying out secondary tensioning on the stay cable. According to the invention, the influence of temperature on the tensioning of the cable-stayed bridge is solved.
本发明公开了一种平行钢绞线斜拉索多级等值张拉索力控制方法，包括：步骤S1，通过温度采集系统，采集斜拉桥全桥的温度数据；步骤S2，通过高程自动化测量系统，采集斜拉桥的高程数据；步骤S3，利用温度采集系统和高程自动化测量系统进行一次24h测量获得高程与温度变化关系曲线作为修正数据参考，随后进行斜拉索的第一次张拉；步骤S4，斜拉索第一次张拉后，桥面吊机松钩前移就位，通过温度采集系统和高程自动化测量系统再次进行一次测量，得到吊机前移后的梁段温度及一张索力损失所需修正数据；步骤S5，吊机前移后的梁段温度及一张索力损失所需修正数据作为参考，随后进行斜拉索的第二次张拉。本发明解决了温度对斜拉桥张拉带来的影响。
Parallel steel strand stay cable multi-stage equivalent tension cable force control method
The invention discloses a parallel steel strand stay cable multistage equivalent tension cable force control method which comprises the following steps: S1, acquiring temperature data of a whole cable-stayed bridge through a temperature acquisition system; s2, collecting elevation data of the cable-stayed bridge through an elevation automatic measurement system; s3, a temperature acquisition system and an automatic elevation measurement system are used for conducting 24-hour measurement once, an elevation and temperature change relation curve is obtained and serves as a correction data reference, and then the stay cable is tensioned for the first time; s4, after the stay cable is tensioned for the first time, the bridge deck crane looses a hook and moves forwards in place, measurement is conducted again through the temperature collecting system and the automatic elevation measuring system, and correction data needed by the beam section temperature and the tension force loss after the crane moves forwards are obtained; and S5, taking the temperature of the beam section after the crane moves forwards and correction data required by the loss of one cable tension force as references, and then carrying out secondary tensioning on the stay cable. According to the invention, the influence of temperature on the tensioning of the cable-stayed bridge is solved.
本发明公开了一种平行钢绞线斜拉索多级等值张拉索力控制方法，包括：步骤S1，通过温度采集系统，采集斜拉桥全桥的温度数据；步骤S2，通过高程自动化测量系统，采集斜拉桥的高程数据；步骤S3，利用温度采集系统和高程自动化测量系统进行一次24h测量获得高程与温度变化关系曲线作为修正数据参考，随后进行斜拉索的第一次张拉；步骤S4，斜拉索第一次张拉后，桥面吊机松钩前移就位，通过温度采集系统和高程自动化测量系统再次进行一次测量，得到吊机前移后的梁段温度及一张索力损失所需修正数据；步骤S5，吊机前移后的梁段温度及一张索力损失所需修正数据作为参考，随后进行斜拉索的第二次张拉。本发明解决了温度对斜拉桥张拉带来的影响。
Parallel steel strand stay cable multi-stage equivalent tension cable force control method
一种平行钢绞线斜拉索多级等值张拉索力控制方法
ZOU CI (author) / WANG LAIFA (author) / LI YEXUN (author) / ZHANG WEI (author) / LIU XIAOGANG (author) / LI ZIHAN (author) / LU JINLIANG (author) / ZHU HUI (author)
2025-01-21
Patent
Electronic Resource
Chinese
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