Mathematical Modeling for Lateral Displacement Induced by Wind Velocity Using Monitoring Data Obtained from Main Girder of Sutong Cable-Stayed Bridge

Figure 3

Description of the defined local and WGS-84 coordinate system. Notes: (1) local coordinate system: 𝑥-𝑦-𝑧; (2) WGS-84 coordinate system: 𝑋-𝑌-𝑍; (3) 90° of wind horizontal angle denotes the axis angle from 𝑥 to 𝑦 (within range of [0° 360°]); (4) 90° of wind vertical angle denotes axis angle from 𝑦 to 𝑧 (within range of [−90° 90°]); (5) 10.6° axis angle exists between axes 𝑌 and 𝑦 of across the bridge.