live load

简明释义

移动载荷

英英释义

例句

1.A truck carrying heavy goods can significantly increase the live load 活载荷 on a highway.

一辆载重货物的卡车可以显著增加高速公路上的活载荷。

2.During the inspection, they measured the live load 活载荷 on the roof to assess its structural integrity.

在检查过程中，他们测量了屋顶上的活载荷以评估其结构完整性。

3.The bridge was designed to support a maximum live load 活载荷 of 20 tons.

这座桥的设计承载最大活载荷为20吨。

4.The live load 活载荷 of furniture and occupants must be considered in the floor design.

在地板设计中，必须考虑家具和居住者的活载荷。

5.Engineers must calculate the live load 活载荷 when designing buildings to ensure safety.

工程师在设计建筑时必须计算活载荷以确保安全。

作文

In civil engineering, the term live load refers to the dynamic forces that are applied to structures during their use. These loads can vary over time and are not permanent, unlike dead loads, which are static and constant. Understanding the concept of live load is crucial for engineers when designing buildings, bridges, and other infrastructures. For example, when designing a bridge, engineers must account for the weight of vehicles that will travel across it. This weight fluctuates with the number of cars on the bridge at any given moment, thus representing a live load.To illustrate this further, consider a multi-story building. The live load in such a structure includes the weight of people, furniture, and movable equipment. These elements can change as people enter and exit the building, or as furniture is rearranged. Therefore, engineers must estimate the maximum potential live load to ensure the building can safely support its occupants and their belongings without risk of failure.One of the primary methods for calculating live load is through building codes and standards, which provide guidelines based on the type of structure and its intended use. For instance, residential buildings may have different live load requirements compared to commercial buildings or industrial facilities. This differentiation is essential because the expected occupancy and usage patterns will significantly influence the live load that the structure must withstand.In addition to considering the maximum live load, engineers also need to factor in the distribution of these loads. For example, a concentrated load, such as a heavy piece of machinery placed in one corner of a floor, can create stress points that may not be present if the load were distributed evenly across the space. Understanding how to analyze and accommodate these variations is vital for ensuring structural integrity.Moreover, environmental factors can also impact live load. For instance, snow accumulation on rooftops is considered a live load because it can vary greatly depending on weather conditions. Engineers must take these potential loads into account during the design phase to prevent structural failures, particularly in regions prone to heavy snowfall.In summary, the concept of live load is integral to the field of structural engineering. It encompasses all the temporary and dynamic loads that a structure may experience during its lifetime. By accurately assessing and incorporating live load into their designs, engineers can ensure the safety and longevity of buildings and other structures. As our cities grow and evolve, the importance of understanding live load will only continue to increase, making it a fundamental aspect of modern engineering practice.

在土木工程中，术语活载荷指的是在结构使用过程中施加的动态力量。这些载荷会随着时间变化，并不是永久性的，与静态且恒定的死载荷不同。理解活载荷的概念对于工程师在设计建筑、桥梁和其他基础设施时至关重要。例如，在设计一座桥时，工程师必须考虑将要通过桥的车辆的重量。这个重量会随着桥上汽车数量的变化而波动，因此代表了一种活载荷。进一步说明这一点，可以考虑一栋多层建筑。在这样的结构中，活载荷包括人员、家具和可移动设备的重量。这些元素会随着人们的进出或家具的重新摆放而改变。因此，工程师必须估算最大潜在的活载荷，以确保建筑能够安全地支撑其居住者及其物品，而不至于发生失败。计算活载荷的主要方法之一是通过建筑规范和标准，这些规范根据结构类型和用途提供指导。例如，住宅建筑的活载荷要求可能与商业建筑或工业设施不同。这种差异化至关重要，因为预期的占用率和使用模式将显著影响结构必须承受的活载荷。除了考虑最大活载荷外，工程师还需要考虑这些载荷的分布。例如，集中载荷，如放置在楼层一个角落的重型机械，可能会产生应力点，而如果载荷均匀分布在空间中，则可能不会出现这些应力点。理解如何分析和适应这些变化对于确保结构的完整性至关重要。此外，环境因素也会影响活载荷。例如，屋顶上的积雪被视为活载荷，因为它可能会根据天气条件大幅变化。工程师在设计阶段必须考虑这些潜在的载荷，以防止结构故障，特别是在容易出现大雪的地区。总之，活载荷的概念是结构工程领域不可或缺的一部分。它涵盖了结构在其生命周期内可能经历的所有临时和动态载荷。通过准确评估并将活载荷纳入设计中，工程师可以确保建筑和其他结构的安全性和耐久性。随着我们的城市不断发展，理解活载荷的重要性只会继续增加，使其成为现代工程实践的基本方面。