Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ground anchor type suspension bridge stiffening beam erecting method
The invention discloses a ground anchor type suspension bridge stiffening beam erecting method which comprises the following steps that suspender cable clamps are installed, and the design center lines of the cable clamps are located in a vertical plane; the method comprises the following steps of: firstly, respectively mounting a section of stiffening beam from a certain distance away from the longitudinal bridges of the two main towers, and symmetrically mounting the corresponding stiffening beams section by section towards the midspan direction; when one or more sections of stiffening beams are installed, the azimuth angle of the main cable around the axis at the suspender cable clamp of the beam section without the stiffening beams is measured until the midspan is closed; measuring the azimuth angle of the main cable winding shaft at the corresponding suspender of the non-mounted beam section near the two main towers; comparing the measured value and the theoretical value of the azimuth angle variable quantity of each stage, and correcting the azimuth angle variable quantity prediction model (a finite element model or a linear or nonlinear curve model) of the main cable winding shaft at the corresponding suspender without the beam section; determining the adjustment amount of the transverse deflection angle of the suspension rod cable clamp of the adjacent uninstalled beam section, performing corresponding adjustment, and then installing the adjacent beam section; and repeating the three steps until the erection of the stiffening beam is completed.
本发明公开一种地锚式悬索桥加劲梁架设方法，包括如下步骤：安装各吊杆索夹，并使索夹设计中心线位于铅直面内。从距两主塔纵桥向一定距离起首先各安装一段加劲梁，并对称向跨中方向逐段安装相应加劲梁；每安装一段或几段加劲梁即测量未安装加劲梁梁段吊杆索夹处主缆绕轴方位角，直至跨中合拢；测量两主塔附近未安装梁段的对应吊杆处主缆绕轴的方位角；比较上述各阶段方位角变化量的实测值与理论值，对未安装梁段的对应吊杆处主缆绕轴的方位角变化量预测模型进行修正(常为有限元模型或者线性或非线性曲线模型)；确定紧邻的未安装梁段吊杆索夹横向偏角的调整量并进行对应调整，然后安装紧邻梁段；重复前述三个步骤直至加劲梁架设完成。
Ground anchor type suspension bridge stiffening beam erecting method
The invention discloses a ground anchor type suspension bridge stiffening beam erecting method which comprises the following steps that suspender cable clamps are installed, and the design center lines of the cable clamps are located in a vertical plane; the method comprises the following steps of: firstly, respectively mounting a section of stiffening beam from a certain distance away from the longitudinal bridges of the two main towers, and symmetrically mounting the corresponding stiffening beams section by section towards the midspan direction; when one or more sections of stiffening beams are installed, the azimuth angle of the main cable around the axis at the suspender cable clamp of the beam section without the stiffening beams is measured until the midspan is closed; measuring the azimuth angle of the main cable winding shaft at the corresponding suspender of the non-mounted beam section near the two main towers; comparing the measured value and the theoretical value of the azimuth angle variable quantity of each stage, and correcting the azimuth angle variable quantity prediction model (a finite element model or a linear or nonlinear curve model) of the main cable winding shaft at the corresponding suspender without the beam section; determining the adjustment amount of the transverse deflection angle of the suspension rod cable clamp of the adjacent uninstalled beam section, performing corresponding adjustment, and then installing the adjacent beam section; and repeating the three steps until the erection of the stiffening beam is completed.
本发明公开一种地锚式悬索桥加劲梁架设方法，包括如下步骤：安装各吊杆索夹，并使索夹设计中心线位于铅直面内。从距两主塔纵桥向一定距离起首先各安装一段加劲梁，并对称向跨中方向逐段安装相应加劲梁；每安装一段或几段加劲梁即测量未安装加劲梁梁段吊杆索夹处主缆绕轴方位角，直至跨中合拢；测量两主塔附近未安装梁段的对应吊杆处主缆绕轴的方位角；比较上述各阶段方位角变化量的实测值与理论值，对未安装梁段的对应吊杆处主缆绕轴的方位角变化量预测模型进行修正(常为有限元模型或者线性或非线性曲线模型)；确定紧邻的未安装梁段吊杆索夹横向偏角的调整量并进行对应调整，然后安装紧邻梁段；重复前述三个步骤直至加劲梁架设完成。
Ground anchor type suspension bridge stiffening beam erecting method
一种地锚式悬索桥加劲梁架设方法
LI CHUANXI (Autor:in) / WANG HU (Autor:in) / KE HONGJUN (Autor:in)
14.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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