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本部分EN 13230系列标准规定了预应力混凝土整体式轨枕的具体要求。这些要求是对EN 13230-1的补充,是构成完整的预应力混凝土整体式轨枕标准的必要组成部分。本部分EN 13230系列标准还规定了与预应力混凝土整体式轨枕的制造和测试相关的其他技术标准和控制程序。
| 术语 | |
|---|---|
| Spannbeton-Monoblockschwelle mit Spanngliedern mit sofortigem Verbund | Prestressed monoblock sleeper with bonded tendons |
| Spannbeton-Monoblockschwelle mit Spanngliedern mit nachtr?glichem Verbund | Prestressed monoblock sleeper with post-tensioned bonded tendons |
| Fr0 | Initial positive reference test force |
| Frr | Positive test force leading to first crack |
| Fr0,05 | Maximum test force with residual crack width of 0.05 mm |
| Fr0,5 | Maximum test force with residual crack width of 0.5 mm |
| FrB | Maximum positive test force |
| Fru | Lower test force for dynamic test |
| Fc0 | Initial positive reference test force at mid-span |
| Fc0n | Initial negative reference test force at mid-span |
| Fcr | Positive test force leading to first crack at mid-span |
| Fcrn | Negative test force leading to first crack at mid-span |
| FcB | Maximum positive test force at mid-span |
| FcBn | Maximum negative test force at mid-span |
| Lp | Constructive distance |
| Lr | Constructive distance between hinge supports |
| Lc | Constructive distance between rail support centers |
| Mk,r,pos | Characteristic positive bending moment at rail support |
| Mk,c,neg | Characteristic negative bending moment at mid-span |
| Mk,c,pos | Characteristic positive bending moment at mid-span |
| k1s | Static factor |
| k2s | Static factor |
| k1d | Dynamic factor |
| k2d | Dynamic factor |
| k3 | Static factor |
| kt | Factor for crack acceptance criterion |
| 倾斜补偿板 未提及 | 用于调整测试装置角度以匹配钢轨支撑坡度的金属板。 |
| 固定支座 未提及 | 测试装置中用于固定轨枕一端的刚性支撑部件。 |
| 弹性垫层 未提及 | 放置在支座与轨枕之间的弹性材料层,用于模拟道床的弹性特性。 |
| 铰接支座 未提及 | 测试装置中允许旋转的支撑部件,用于模拟实际轨道支撑条件。 |
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