characteristic value of variable action

简明释义

可变作用标准值

英英释义

例句

1.In structural engineering, the characteristic value of variable action is crucial for ensuring safety under dynamic loads.

在结构工程中，可变作用的特征值对于确保在动态荷载下的安全至关重要。

2.The regulations specify that the characteristic value of variable action should be derived from statistical data.

法规规定，可变作用的特征值应基于统计数据得出。

3.When assessing the stability of a structure, the characteristic value of variable action must be accurately determined.

在评估结构的稳定性时，必须准确确定可变作用的特征值。

4.The characteristic value of variable action helps engineers to predict the effects of wind and seismic activities on buildings.

可变作用的特征值帮助工程师预测风和地震活动对建筑物的影响。

5.Designers must consider the characteristic value of variable action when calculating the load-bearing capacity of a bridge.

设计师在计算桥梁的承载能力时必须考虑可变作用的特征值。

作文

In the field of structural engineering, understanding various loads and actions that a structure may experience is crucial for ensuring safety and stability. One of the key concepts in this domain is the characteristic value of variable action, which refers to the standardized value of a load or action that varies over time. This concept plays a significant role in the design and analysis of structures, as it helps engineers determine how much load a structure can safely support under varying conditions.Variable actions are typically associated with live loads, such as the weight of occupants, furniture, vehicles, and environmental factors like wind or snow. Unlike permanent loads, which remain constant, variable actions fluctuate and can change significantly based on time and usage. Therefore, it is essential to establish a characteristic value of variable action to account for these variations during the design process.The characteristic value of variable action is derived from statistical data and is often determined by observing historical records of similar structures or through experimental testing. Engineers analyze the maximum expected values of variable actions and apply safety factors to ensure that the structure can withstand extreme conditions without failure. This approach not only enhances the safety of the structure but also optimizes material usage, reducing costs and environmental impact.For instance, when designing a bridge, engineers must consider the characteristic value of variable action related to traffic loads. They will assess the types of vehicles expected to use the bridge, their weights, and the frequency of their occurrence. By calculating the characteristic value of variable action, engineers can design the bridge to accommodate the maximum anticipated traffic while ensuring that it remains safe for public use.Moreover, the characteristic value of variable action is also crucial in assessing dynamic loads, such as those caused by earthquakes or wind. These forces can vary dramatically, and understanding their characteristic values allows engineers to implement appropriate design strategies, such as introducing damping systems or flexible materials that can absorb and dissipate energy.In summary, the characteristic value of variable action is a fundamental aspect of structural engineering that ensures the resilience and longevity of structures. By accurately determining this value, engineers can create designs that not only meet current safety standards but also adapt to future challenges. The careful consideration of variable actions in design processes ultimately leads to safer, more efficient, and sustainable infrastructure that serves communities effectively.In conclusion, the characteristic value of variable action helps engineers navigate the complexities of variable loads, ensuring that structures can withstand the unpredictable nature of real-world conditions. It is a testament to the importance of thorough analysis and planning in the engineering field, highlighting how meticulous attention to detail can lead to safer and more reliable structures.

在结构工程领域，理解结构可能经历的各种荷载和作用对于确保安全和稳定至关重要。其中一个关键概念是可变作用的特征值，它指的是随时间变化的荷载或作用的标准化值。这个概念在结构的设计和分析中扮演着重要角色，因为它帮助工程师确定在不同条件下，结构能够安全承受多少荷载。可变作用通常与活荷载相关，例如居住者、家具、车辆的重量，以及风或雪等环境因素。与永久荷载不同，永久荷载保持不变，可变作用会波动，并且可能会根据时间和使用情况发生显著变化。因此，在设计过程中建立可变作用的特征值以考虑这些变化是至关重要的。可变作用的特征值是通过统计数据得出的，通常通过观察类似结构的历史记录或通过实验测试来确定。工程师分析可变作用的最大预期值，并应用安全系数，以确保结构能够承受极端条件而不发生故障。这种方法不仅增强了结构的安全性，还优化了材料的使用，降低了成本和对环境的影响。例如，在设计桥梁时，工程师必须考虑与交通荷载相关的可变作用的特征值。他们将评估预计使用桥梁的车辆类型、重量以及出现频率。通过计算可变作用的特征值，工程师可以设计桥梁以容纳最大预期交通，同时确保其对公众使用的安全。此外，可变作用的特征值在评估动态荷载（例如由地震或风引起的荷载）时也至关重要。这些力量可能会剧烈变化，了解它们的特征值使工程师能够实施适当的设计策略，例如引入阻尼系统或可以吸收和耗散能量的柔性材料。总之，可变作用的特征值是结构工程中的基本方面，确保结构的韧性和耐久性。通过准确确定该值，工程师可以创建不仅符合当前安全标准，而且能够适应未来挑战的设计。在设计过程中对可变作用的仔细考虑最终导致更安全、更高效和可持续的基础设施，有效服务于社区。最后，可变作用的特征值帮助工程师应对可变荷载的复杂性，确保结构能够承受现实世界条件的不可预测性。这证明了在工程领域彻底分析和计划的重要性，突显了对细节的细致关注如何导致更安全和更可靠的结构。