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A platform for research: civil engineering, architecture and urbanism
Method for adjusting axis deviation of main beam of single-column-tower cable-stayed bridge
The invention relates to the technical field of bridge engineering, in particular to a single-column-tower cable-stayed bridge main beam axis deviation adjusting method which comprises the following steps that S1, the main beam axis of a single-column-tower cable-stayed bridge is accurately measured, and the deviation angle value theta of the actual main beam axis relative to the designed main beam axis is determined; s2, jacks are installed on the two sides, in the bridge direction, of the bridge tower correspondingly, the fixed ends of the jacks are installed on the bridge tower, the telescopic ends of the jacks abut against the main beam, and the coordinate sizes a and b of force application points A of the jacks to the main beam are measured; s3, calculating the stroke x of the jack according to the deviation angle value theta of the actual main beam axis and the coordinate size b of the force application point A of the jack to the main beam, wherein x = b tan theta; and S4, the stroke of the jack is adjusted according to the calculated stroke x, so that the axis of the main beam coincides with the designed axis of the main beam. By means of the method, the transverse deviation of the axis of the main beam can be effectively adjusted before the bridge is closed, the safety and stability of the bridge structure are ensured, and the influence on the internal force of the stay cable is small.
本发明涉及桥梁工程技术领域，具体涉及一种独柱塔斜拉桥主梁轴线偏差调整方法，包括如下步骤：S1、对独柱塔斜拉桥的主梁轴线进行精确测量，确定实际主梁轴线相对于设计主梁轴线的偏差角度值θ；S2、在桥塔顺桥向的两侧分别安装千斤顶，千斤顶的固定端安装在桥塔上，千斤顶的伸缩端抵在主梁上，并测量千斤顶对主梁的施力点A的坐标尺寸a、b；S3、根据实际主梁轴线的偏差角度值θ以及千斤顶对主梁的施力点A的坐标尺寸b计算千斤顶的行程x，x＝b tanθ；S4、按照计算的行程x调整千斤顶的行程，使主梁轴线与设计主梁轴线重合。采用本发明的方法能够在桥梁合拢前有效地调整主梁轴线的横向偏差，确保桥梁结构的安全性和稳定性，且对斜拉索内力影响小。
Method for adjusting axis deviation of main beam of single-column-tower cable-stayed bridge
The invention relates to the technical field of bridge engineering, in particular to a single-column-tower cable-stayed bridge main beam axis deviation adjusting method which comprises the following steps that S1, the main beam axis of a single-column-tower cable-stayed bridge is accurately measured, and the deviation angle value theta of the actual main beam axis relative to the designed main beam axis is determined; s2, jacks are installed on the two sides, in the bridge direction, of the bridge tower correspondingly, the fixed ends of the jacks are installed on the bridge tower, the telescopic ends of the jacks abut against the main beam, and the coordinate sizes a and b of force application points A of the jacks to the main beam are measured; s3, calculating the stroke x of the jack according to the deviation angle value theta of the actual main beam axis and the coordinate size b of the force application point A of the jack to the main beam, wherein x = b tan theta; and S4, the stroke of the jack is adjusted according to the calculated stroke x, so that the axis of the main beam coincides with the designed axis of the main beam. By means of the method, the transverse deviation of the axis of the main beam can be effectively adjusted before the bridge is closed, the safety and stability of the bridge structure are ensured, and the influence on the internal force of the stay cable is small.
本发明涉及桥梁工程技术领域，具体涉及一种独柱塔斜拉桥主梁轴线偏差调整方法，包括如下步骤：S1、对独柱塔斜拉桥的主梁轴线进行精确测量，确定实际主梁轴线相对于设计主梁轴线的偏差角度值θ；S2、在桥塔顺桥向的两侧分别安装千斤顶，千斤顶的固定端安装在桥塔上，千斤顶的伸缩端抵在主梁上，并测量千斤顶对主梁的施力点A的坐标尺寸a、b；S3、根据实际主梁轴线的偏差角度值θ以及千斤顶对主梁的施力点A的坐标尺寸b计算千斤顶的行程x，x＝b tanθ；S4、按照计算的行程x调整千斤顶的行程，使主梁轴线与设计主梁轴线重合。采用本发明的方法能够在桥梁合拢前有效地调整主梁轴线的横向偏差，确保桥梁结构的安全性和稳定性，且对斜拉索内力影响小。
Method for adjusting axis deviation of main beam of single-column-tower cable-stayed bridge
一种独柱塔斜拉桥主梁轴线偏差调整方法
HE MIAO (author) / WU SHUAIFENG (author) / ZHANG JUSHENG (author) / XIONG TAO (author) / YANG QIZHI (author) / LONG JUNXIAN (author) / ZHANG GUANGCHAO (author) / DAI CANLEI (author) / FAN XIN (author)
2024-10-01
Patent
Electronic Resource
Chinese
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