live load stress

简明释义

活载应力

英英释义

例句

1.The engineer calculated the live load stress 活载应力 on the bridge to ensure it could support heavy vehicles.

工程师计算了桥梁上的活载应力 live load stress，以确保其能够支持重型车辆。

2.During the inspection, we measured the live load stress 活载应力 to determine if the structure was safe.

在检查过程中，我们测量了活载应力 live load stress以确定结构是否安全。

3.Understanding the live load stress 活载应力 helps in designing safer buildings.

理解活载应力 live load stress有助于设计更安全的建筑物。

4.Exceeding the live load stress 活载应力 limits can lead to structural failure.

超过活载应力 live load stress的限制可能导致结构失效。

5.The construction team monitored the live load stress 活载应力 during the loading phase of the project.

施工团队在项目的加载阶段监测了活载应力 live load stress。

作文

In the field of civil engineering, understanding the various types of stresses that structures undergo is crucial for ensuring their safety and longevity. One significant type of stress is known as live load stress, which refers to the dynamic forces acting on a structure due to the weight of movable objects such as people, furniture, vehicles, and equipment. Unlike dead loads, which are static and constant, live load stress can vary significantly over time and is often unpredictable. This variability is what makes it essential for engineers to carefully calculate and account for these stresses during the design phase.The concept of live load stress is integral to the design of various structures, including bridges, buildings, and other infrastructures. For instance, in a bridge, the live load includes the weight of cars, trucks, and pedestrians that use the bridge at any given moment. Engineers must consider the maximum potential live load stress that the bridge will experience during its lifespan. This involves analyzing traffic patterns, peak usage times, and even the potential for unusual events, such as a parade or a concert that draws large crowds.Moreover, the calculation of live load stress is not merely an academic exercise; it has real-world implications. If engineers underestimate the live load stress that a structure will face, they risk designing a building or bridge that could fail under unexpected conditions. On the other hand, overestimating these stresses can lead to unnecessarily robust designs that inflate construction costs and waste materials.To accurately assess live load stress, engineers utilize various methods, including load testing and simulations. Load testing involves applying weights to a structure to observe how it responds, while simulations allow for the modeling of different scenarios using computer software. These methods help engineers predict how a structure will behave under different loading conditions, ultimately leading to safer and more efficient designs.In addition to its importance in the design phase, understanding live load stress is also crucial for the maintenance of existing structures. As buildings and bridges age, the materials can degrade, and the way they respond to loads can change. Regular inspections and assessments of live load stress can help identify potential issues before they become serious problems. For example, if a bridge shows signs of excessive deflection under typical traffic loads, it may indicate that the structure is no longer capable of handling the expected live load stress. In such cases, maintenance or retrofitting may be necessary to ensure continued safety.In conclusion, live load stress plays a vital role in the field of civil engineering. It encompasses the dynamic forces that structures encounter due to movable loads and must be carefully considered during both the design and maintenance phases of a project. By accurately calculating and monitoring live load stress, engineers can create safer, more durable structures that meet the needs of society. The ongoing study and application of this concept will continue to be essential as we strive to build resilient infrastructures that can withstand the test of time.

在土木工程领域，理解结构所承受的各种应力类型对于确保其安全性和耐久性至关重要。其中一个重要的应力类型被称为活载应力，它指的是由于可移动物体（如人、家具、车辆和设备）的重量对结构施加的动态力量。与静态且恒定的死载不同，活载应力会随着时间的推移而显著变化，并且通常是不可预测的。这种变异性使得工程师在设计阶段必须仔细计算和考虑这些应力。活载应力的概念对于桥梁、建筑物和其他基础设施的设计至关重要。例如，在一座桥中，活载包括任何时刻使用该桥的汽车、卡车和行人的重量。工程师必须考虑桥梁在其生命周期内可能经历的最大活载应力。这涉及到分析交通模式、使用高峰时段，甚至是大型活动（如游行或音乐会）可能吸引的大量人群。此外，活载应力的计算不仅仅是学术上的练习；它具有现实世界的影响。如果工程师低估了结构将面临的活载应力，他们就有可能设计出在意外情况下可能失效的建筑物或桥梁。另一方面，过高的估计可能导致不必要的强固设计，从而抬高建设成本，浪费材料。为了准确评估活载应力，工程师采用多种方法，包括载荷测试和模拟。载荷测试涉及将重量施加到结构上以观察其反应，而模拟则允许使用计算机软件对不同场景进行建模。这些方法帮助工程师预测结构在不同负载条件下的表现，最终导致更安全、更高效的设计。除了在设计阶段的重要性外，理解活载应力对于维护现有结构也至关重要。随着建筑物和桥梁的老化，材料可能会降解，它们对负载的响应方式也可能发生变化。定期检查和评估活载应力可以帮助识别潜在问题，以防止其演变为严重问题。例如，如果一座桥在典型交通负载下显示出过度的挠度，这可能表明该结构不再能够处理预期的活载应力。在这种情况下，可能需要进行维护或加固，以确保持续的安全性。总之，活载应力在土木工程领域发挥着至关重要的作用。它涵盖了结构因可移动负载而遭遇的动态力量，必须在项目的设计和维护阶段加以仔细考虑。通过准确计算和监测活载应力，工程师可以创建更安全、更耐用的结构，以满足社会的需求。对这一概念的持续研究和应用将继续在我们努力建设能够经受时间考验的韧性基础设施中发挥关键作用。