A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tensioning control method and device for stay cable of cable-stayed bridge
The embodiment of the invention provides a cable-stayed bridge inhaul cable tensioning control method and device. The method comprises the steps that each inhaul cable is tensioned to the unstressed cable length based on the pulling-out amount of an anchor head; determining a non-adjusting cable and an adjusting cable based on the cable force deviation of each inhaul cable; on the basis of the inhaul cable overall influence matrix and a quadratic form programming method, locking the non-adjustment cable, and determining the amplitude modulation of the adjustment cable; and the unstressed cable length of the adjusting cable is adjusted based on the conversion relation between the amplitude modulation of the adjusting cable and the anchor head pull-out amount correction value. According to the embodiment of the invention, the cable is adjusted by using the unstressed cable length and the anchor head pull-out amount, and the non-adjustment cable is locked based on the cable overall influence matrix and the quadratic form programming method, so that more accurate cable adjustment amplitude modulation can be obtained, more accurate adjustment amount can be obtained, the cable adjustment frequency can be reduced, and the cable adjustment efficiency can be improved.
本申请实施例提供了一种斜拉桥拉索张拉控制方法和装置。其中，该方法包括：基于锚头拔出量将每根拉索张拉至无应力索长；基于每根拉索的索力偏差，确定非施调索和施调索；基于拉索整体影响矩阵和二次型规划法，对非施调索进行锁定，确定施调索的调幅；基于施调索的调幅与锚头拔出量修正值的转换关系，调整施调索的无应力索长。本申请实施例利用无应力索长、锚头拔出量进行调索，并且基于拉索整体影响矩阵和二次型规划法，对非施调索进行锁定，有利于得到更准确的调索的调幅，进而获得更准确的调整量，可以减少调索次数，提高调索效率。
Tensioning control method and device for stay cable of cable-stayed bridge
The embodiment of the invention provides a cable-stayed bridge inhaul cable tensioning control method and device. The method comprises the steps that each inhaul cable is tensioned to the unstressed cable length based on the pulling-out amount of an anchor head; determining a non-adjusting cable and an adjusting cable based on the cable force deviation of each inhaul cable; on the basis of the inhaul cable overall influence matrix and a quadratic form programming method, locking the non-adjustment cable, and determining the amplitude modulation of the adjustment cable; and the unstressed cable length of the adjusting cable is adjusted based on the conversion relation between the amplitude modulation of the adjusting cable and the anchor head pull-out amount correction value. According to the embodiment of the invention, the cable is adjusted by using the unstressed cable length and the anchor head pull-out amount, and the non-adjustment cable is locked based on the cable overall influence matrix and the quadratic form programming method, so that more accurate cable adjustment amplitude modulation can be obtained, more accurate adjustment amount can be obtained, the cable adjustment frequency can be reduced, and the cable adjustment efficiency can be improved.
本申请实施例提供了一种斜拉桥拉索张拉控制方法和装置。其中，该方法包括：基于锚头拔出量将每根拉索张拉至无应力索长；基于每根拉索的索力偏差，确定非施调索和施调索；基于拉索整体影响矩阵和二次型规划法，对非施调索进行锁定，确定施调索的调幅；基于施调索的调幅与锚头拔出量修正值的转换关系，调整施调索的无应力索长。本申请实施例利用无应力索长、锚头拔出量进行调索，并且基于拉索整体影响矩阵和二次型规划法，对非施调索进行锁定，有利于得到更准确的调索的调幅，进而获得更准确的调整量，可以减少调索次数，提高调索效率。
Tensioning control method and device for stay cable of cable-stayed bridge
斜拉桥拉索张拉控制方法和装置
LI PENGFEI (author) / MAO YAN (author) / WANG SHILEI (author) / LIU YI (author)
2022-03-18
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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