Research Article
Experimental and Numerical Study on the Earthquake Damage of Spherical Bearings for Chinese High-Speed Railway Bridge
Table 3
Physical parameters of spherical bearing specimen.
| | Vertical bearing capacity (kN) | 1000 | | Bearing corner (rad) | 0.02 | | Horizontal bearing capacity (kN) | 5%∼10% of vertical capacity | | Design displacement (mm) | ±100, ±40 ± 3, 0 (almost) | | Design friction coefficient | μ ≤ 0.03 | | Applicable temperature range | −40°C ∼ +60°C | | Elastic modulus of bearing (MPa) | 210000 | | Density of bearing (kg/m3) | 7850 | | Poisson’s ratio of bearing | 0.2 | | Elastic modulus of PTFE (MPa) | 1500 | | Density of PTFE (kg/m3) | 2200 | | Poisson’s ratio of PTFE | 0.4 |
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