4.19.2.6 Requirements for Structural Design 构造设计的要求
1. The requirements for strength, stabilization, deform, cracks and earthquake resistance shall be met.
1. 满足强度、稳定性、抗变形、抗破裂和抗震的要求。
The T-G set foundation and pedestal shall employ reinforced concrete structure.
汽轮发电机组基座和底座应采用钢筋混凝土结构。
2. The Supplier shall submit the foundation design based on the geological investigation to the Purchaser for review and approval. The foundation design shall be in accordance with relevant applicable standards or codes adopted by reference T-G set foundation and pedestal.
2. 供方应根据地质调查向买方提交汽轮发电机组基座设计供审查和批准。基座设计应符合参考汽轮发电机组基座和底座中采用的相关适用标准或规范。
Beijing Chinese Subtitling Translation Service Agency has translated many technical documents about Requirements for Structural Design.
华译网上海翻译公司曾经翻译过大量有关构造设计的要求资料文件。
The foundation of the T-G set foundation and pedestal shall be selected at the bedrock layer. The magnitude of settlement shall meet international standards.
汽轮发电机组基座和底座的基座应选择在岩床层。沉降量应符合国际标准。
The turbine generator foundation and pedestal shall be separated from foundation and slab of turbine house with anti-vibration connection. In addition to satisfying the static equilibrium and strength requirement, the foundations and pedestal shall be designed to avoid resonance during operation.
汽轮发电机基座和底座应采用抗振动连接与汽轮室的基座和底板层分开。基座和底座不仅要满足静力平衡和强度的要求，还应避免在运行期间造成共振。
A low-tuned turbine generator foundation will be used. A low-tuned foundation is defined as having its fundamental natural frequency lower than the turbine generator operation frequency (at least 20% lower than the lowest critical speed of the coupled rotor turbine generator set). However, the fundamental natural frequency of foundation will also be sufficiently removed from the predominant frequency range of design earthquake spectrum and the fundamental natural frequency of the turbine generator.
将采用低调谐汽轮发电机基座。低调谐基座具有的基本固有频率低于汽轮发电机运行频率（至少低于耦合转子汽轮发电机组的最低临界速度的20%）。然而，基座的基本固有频率也应充分远离设计地震频谱的主要频率范围和汽轮发电机的基本固有频率范围。
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