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Research Article

Nonlinear Optimization of Orthotropic Steel Deck System Based on Response Surface Methodology

Table 2

Structural parameters of the bridge deck system for some typical long-span steel bridges in China [1, 1924].

Bridge nameThe thickness of the top plateThe transverse diaphragm plateThe stiffenerThe pavement

Su-Tong Yangtze River Highway Bridge≥14 mm4 m apart; the opening refers to Japanese specificationU-rib ()Double-layer epoxy asphalt (55 mm)
Yangluo Bridge14 mm8, 10 mm thick; 3.2 m apartU-rib ()Double-layer epoxy asphalt (60 mm)
The Second Nanjing Yangtze River Bridge14 mm10 mm thick; 3.75 m apartU-rib ()One-layer epoxy asphalt (50 mm)
Jiangyin Yangtze River Bridge12 mm3.2 m apartU-rib ()Double-layer epoxy asphalt (55 mm)
Nansha Bridge16~18 mm3.2 m apartU-rib ()Double-layer epoxy asphalt (65 mm)
Haicang Bridge12 mm3.0 m apartU-rib ()Double-layer SMA (65 mm)
Hong Kong-Zhuhai-Macao Bridge≥18 mmThe opening refers to EU specificationU-rib ()GMA (lower) + SMA (upper) (68 mm)

The U-rib parameters are upper opening width (mm) × height (mm) × thickness (mm) × center distance (mm).