Bearing Repair and Monitoring for Poyanghu Cable-Stayed Bridge

Table 1

Details of repair process and monitoring practices.

Step	Time	Location of the repaired bearing	Specific works	Monitored displacement directions	Monitored cables
1	19∼20 September	Downstream side	Establish temporary supports	Longitudinal, transverse, and vertical directions	1#∼3#,
					1′#∼3′#
2	25 September	Downstream side	Remove temporary supports, apply heavy vehicles, and tension anchoring bolts arranged between main girder and bearings	Longitudinal, transverse, and vertical directions	1#∼3#,
					1′#∼3′#
3	12∼24 October	Upstream side	Remove the damaged anchoring bolts and ream holes	Longitudinal, transverse, and vertical directions	1#∼3#,
					1′#∼3′#
4	25 October	Upstream side	Apply heavy vehicles and tension anchoring bolts arranged between the main girder and the bearings	Longitudinal, transverse, and vertical directions