live load

简明释义

活动负载

英英释义

例句

1.When planning the event, we considered the expected live load 活载荷 of attendees.

在计划活动时，我们考虑了预期的与会者的活载荷。

2.The bridge was designed to support a maximum live load 活载荷 of 10 tons.

这座桥的设计最大支持10吨的活载荷。

3.Engineers must calculate the live load 活载荷 when designing high-rise buildings.

工程师在设计高层建筑时必须计算活载荷。

4.During the inspection, we measured the live load 活载荷 on the roof to ensure safety.

在检查期间，我们测量了屋顶上的活载荷以确保安全。

5.The live load 活载荷 for this floor is limited to 50 pounds per square foot.

这个楼层的活载荷限制为每平方英尺50磅。

作文

In the field of civil engineering, understanding the concept of live load is crucial for designing safe and effective structures. A live load refers to the temporary or dynamic forces that are applied to a structure during its use. Unlike dead loads, which are static and constant, live loads can vary in magnitude and location over time. These loads include people, furniture, vehicles, and other movable objects that can change positions and weights. Therefore, engineers must carefully consider live loads when planning buildings, bridges, and other infrastructures.The importance of accounting for live loads cannot be overstated. For instance, when designing a bridge, engineers must estimate the maximum number of vehicles that could be on the bridge at any given time. This estimation helps determine the necessary strength and stability of the bridge to ensure it can safely support the weight of traffic. If the live load is underestimated, the bridge may collapse under unexpected pressure, leading to catastrophic consequences.Moreover, live loads can vary significantly based on the building's purpose. For example, a concert hall will experience different live loads compared to an office building. In the concert hall, the audience's presence during performances creates a dynamic live load that fluctuates as people move around. Engineers must account for these changes to ensure the structure remains safe under various conditions.In addition to human occupancy, environmental factors also contribute to live loads. For example, snow accumulation on rooftops can add significant weight, acting as a live load that varies with weather conditions. Engineers must consider these factors when designing roofs to prevent structural failures during heavy snowfall.Another critical aspect of live loads is their impact on overall design. Engineers often use safety factors to account for uncertainties in live loads. By incorporating these safety margins, they can ensure that structures can withstand unexpected increases in load without compromising safety. This practice is essential in earthquake-prone areas where seismic activity can introduce additional live loads on buildings and bridges.Furthermore, modern technology has enabled engineers to better analyze and predict live loads. With the advent of computer simulations and modeling software, engineers can create virtual environments to test how structures respond to varying live loads. This ability to simulate real-world conditions allows for more precise designs and safer structures.In conclusion, the concept of live load is fundamental to civil engineering and architecture. Understanding how live loads affect structures is vital for ensuring safety and functionality. As we continue to advance in technology and engineering practices, the methods for calculating and accommodating live loads will only improve, leading to safer and more resilient structures for future generations.

在土木工程领域，理解活荷载的概念对于设计安全有效的结构至关重要。活荷载指的是在结构使用过程中施加的临时或动态力量。与静态和恒定的死荷载不同，活荷载可以随时间在大小和位置上变化。这些荷载包括人、家具、车辆以及其他可以移动的物体，它们的位置和重量可能会发生变化。因此，工程师在规划建筑、桥梁和其他基础设施时，必须仔细考虑活荷载。考虑活荷载的重要性不容小觑。例如，在设计桥梁时，工程师必须估计在任何给定时间内可能在桥上的最大车辆数量。这一估算有助于确定桥梁所需的强度和稳定性，以确保它能够安全承受交通的重量。如果低估了活荷载，桥梁可能在意外压力下倒塌，导致灾难性的后果。此外，活荷载可以根据建筑物的用途显著变化。例如，音乐厅的活荷载与办公楼不同。在音乐厅中，观众在演出期间的存在创造了一个动态的活荷载，随着人们的移动而波动。工程师必须考虑这些变化，以确保结构在各种条件下保持安全。除了人类占用，环境因素也会对活荷载产生影响。例如，屋顶上的积雪会增加显著的重量，作为一种随着天气条件变化的活荷载。工程师在设计屋顶时必须考虑这些因素，以防止在大雪期间发生结构故障。活荷载的另一个关键方面是其对整体设计的影响。工程师通常使用安全系数来考虑活荷载中的不确定性。通过纳入这些安全边际，他们可以确保结构能够承受意外增加的荷载，而不会危及安全。这一做法在地震频发地区尤为重要，因为地震活动可能会给建筑物和桥梁带来额外的活荷载。此外，现代技术使工程师能够更好地分析和预测活荷载。随着计算机模拟和建模软件的出现，工程师可以创建虚拟环境，以测试结构如何响应不同的活荷载。这种模拟现实条件的能力使得设计更加精确，结构更加安全。总之，活荷载的概念是土木工程和建筑学的基础。理解活荷载如何影响结构对于确保安全和功能至关重要。随着我们在技术和工程实践上的不断进步，计算和适应活荷载的方法将会不断改善，为未来几代人提供更安全、更具韧性的结构。