allowable stress design

简明释义

容许应力计算

英英释义

例句

1.Understanding allowable stress design is essential for any civil engineer working on large infrastructure projects.

理解允许应力设计对于任何从事大型基础设施项目的土木工程师都是必不可少的。

2.For this project, we will apply allowable stress design to optimize the structural integrity of the components.

对于这个项目，我们将应用允许应力设计来优化组件的结构完整性。

3.The engineer used allowable stress design to ensure the bridge could safely support heavy loads.

工程师使用允许应力设计来确保桥梁能够安全承载重载。

4.The allowable stress design method helps engineers calculate the maximum load a material can handle without failure.

允许应力设计方法帮助工程师计算材料在不发生故障的情况下可以承受的最大载荷。

5.In the construction of the skyscraper, allowable stress design was critical for meeting safety standards.

在摩天大楼的建设中，允许应力设计对于满足安全标准至关重要。

作文

In the field of structural engineering, the concept of allowable stress design plays a crucial role in ensuring the safety and integrity of structures. This design philosophy is based on the principle that materials can only withstand certain levels of stress before failing. Understanding this concept is essential for engineers as they create buildings, bridges, and various infrastructures that must endure both static and dynamic loads.The term allowable stress design refers to a method where engineers calculate the maximum stress that a material can safely withstand without experiencing failure. This involves taking into account factors such as the material properties, the type of load applied, and the environmental conditions. The allowable stress is determined by applying a safety factor to the material's yield strength, which is the point at which the material begins to deform permanently. By using this approach, engineers can ensure that structures remain safe under normal operating conditions.One of the primary advantages of allowable stress design is its simplicity. Engineers can easily apply this method to various materials, including steel, concrete, and wood, making it versatile across different types of construction projects. For instance, when designing a steel beam, an engineer will first determine the yield strength of the steel being used. Then, by applying a safety factor, they can establish the allowable stress, which serves as a guideline for the maximum load the beam can support without risking failure.However, while allowable stress design is widely used, it is not without its limitations. One significant drawback is that it does not account for the effects of long-term loading, known as creep, or the potential for fatigue due to repeated loading cycles. These factors can lead to unexpected failures if not properly considered. Therefore, engineers often supplement allowable stress design with additional analyses, such as limit state design, which takes into account these long-term effects and provides a more comprehensive understanding of a structure's performance over time.Moreover, the application of allowable stress design varies across different regions and building codes. For example, in some countries, specific codes dictate the safety factors that must be used, while others allow engineers more flexibility in determining these values. This variation necessitates that engineers stay informed about local regulations and best practices to ensure compliance and safety in their designs.In conclusion, allowable stress design is a fundamental concept in structural engineering that ensures the safety and reliability of various structures. By understanding the principles behind this design method, engineers can create safe and efficient designs that meet the demands of modern infrastructure. Despite its limitations, allowable stress design remains a vital tool in the engineer's toolkit, complemented by other design methodologies to address the complexities of real-world applications. As technology and materials continue to evolve, so too will the approaches to structural design, but the foundational principles of allowable stress design will likely remain relevant for years to come.

在结构工程领域，允许应力设计的概念在确保结构的安全性和完整性方面发挥着至关重要的作用。这种设计理念基于一个原则，即材料在失效之前只能承受某些水平的应力。理解这一概念对工程师至关重要，因为他们需要设计能够承受静态和动态负载的建筑、桥梁和各种基础设施。术语允许应力设计指的是一种方法，工程师计算材料可以安全承受的最大应力，而不会发生失效。这涉及到考虑材料特性、施加的负载类型和环境条件等因素。通过对材料屈服强度施加安全系数，可以确定允许应力，这是材料开始永久变形的点。通过这种方法，工程师可以确保结构在正常操作条件下保持安全。允许应力设计的一个主要优点是其简单性。工程师可以轻松地将这种方法应用于各种材料，包括钢、混凝土和木材，使其在不同类型的建筑项目中具有广泛的适用性。例如，在设计钢梁时，工程师首先确定所用钢材的屈服强度。然后，通过施加安全系数，他们可以建立允许应力，这作为梁可以支持的最大负载的指导方针，而不冒失效的风险。然而，尽管允许应力设计被广泛使用，但它并非没有局限性。一个显著的缺点是，它没有考虑长期载荷的影响，即蠕变，或由于重复载荷循环导致的疲劳。这些因素如果没有得到妥善考虑，可能会导致意外失效。因此，工程师通常会用其他分析方法来补充允许应力设计，例如极限状态设计，它考虑了这些长期效应，并提供了对结构性能更全面的理解。此外，允许应力设计的应用在不同地区和建筑规范中有所不同。例如，在某些国家，特定规范规定了必须使用的安全系数，而其他国家则允许工程师在确定这些值时有更多的灵活性。这种差异要求工程师了解当地法规和最佳实践，以确保其设计的合规性和安全性。总之，允许应力设计是结构工程中的一个基本概念，确保各种结构的安全性和可靠性。通过理解这一设计方法背后的原理，工程师可以创建安全高效的设计，以满足现代基础设施的需求。尽管存在局限性，允许应力设计仍然是工程师工具箱中的重要工具，辅以其他设计方法来应对现实应用的复杂性。随着技术和材料的不断发展，结构设计的方法也将不断演变，但允许应力设计的基础原则在未来几年内可能仍然相关。