upper chord

简明释义

上弦杆

英英释义

例句

1.The engineer explained that the load is distributed evenly across the upper chord (上弦) of the truss.

工程师解释说，负载均匀分布在桁架的上弦上。

2.The architect designed the bridge with a strong upper chord (上弦) to support heavy traffic.

建筑师设计了这座桥，使用了坚固的上弦以支持重型交通。

3.We need to reinforce the upper chord (上弦) to prevent any potential failure.

我们需要加固上弦以防止任何潜在的故障。

4.In this model, the upper chord (上弦) plays a crucial role in maintaining structural integrity.

在这个模型中，上弦在保持结构完整性方面起着至关重要的作用。

5.During the inspection, we found that the upper chord (上弦) had some signs of wear.

在检查过程中，我们发现上弦有一些磨损迹象。

作文

The concept of the upper chord is often encountered in various fields, particularly in engineering and architecture. The upper chord refers to the top member of a truss or structural framework that typically experiences tension or compression forces. Understanding the role of the upper chord is essential for anyone involved in the design and construction of buildings and bridges. It provides the necessary strength and stability to support the loads applied to the structure.When designing a truss, engineers must consider the materials used for the upper chord. Common materials include steel and timber, each offering different advantages and disadvantages. Steel, for instance, has a high strength-to-weight ratio, making it ideal for large spans where weight is a concern. On the other hand, timber can provide aesthetic appeal and is often more sustainable, but it may not support as much load as steel.In addition to material selection, the geometry of the upper chord is also crucial. The shape and size of the upper chord can significantly affect the overall performance of the truss. For example, a wider upper chord can distribute loads more evenly, reducing stress on individual members. Engineers must perform calculations to ensure that the upper chord can withstand the expected loads, including live loads (such as people and furniture) and dead loads (the weight of the structure itself).The importance of the upper chord extends beyond just structural integrity; it also plays a role in aesthetics. In many architectural designs, the upper chord can be exposed, becoming a visual element of the building. This dual function of being both a structural and aesthetic component highlights the need for careful consideration during the design phase.Moreover, the upper chord must work in harmony with other components of the truss, such as the lower chord and web members. The interaction between these elements determines the overall stability and strength of the structure. Engineers use advanced software and modeling techniques to simulate how the upper chord will behave under various conditions, ensuring that the final design is both safe and efficient.In conclusion, the upper chord is a vital component in the field of structural engineering. Its ability to bear loads and contribute to the overall design makes it an essential consideration for architects and engineers alike. By understanding the properties and functions of the upper chord, professionals can create structures that are not only safe and functional but also visually appealing. As we continue to advance in building technologies, the role of the upper chord will undoubtedly evolve, but its importance will remain steadfast in the creation of resilient and enduring structures.

“上弦”这个概念在工程和建筑等多个领域中经常出现。“上弦”指的是桁架或结构框架的顶部构件，通常承受拉力或压力。理解“上弦”的作用对于参与建筑和桥梁设计与施工的任何人来说都是至关重要的。它提供了必要的强度和稳定性，以支撑施加于结构上的负载。在设计桁架时，工程师必须考虑“上弦”所用的材料。常见的材料包括钢材和木材，各自具有不同的优缺点。例如，钢材具有高的强度重量比，非常适合大型跨度，因其重量是一个关注点。另一方面，木材可以提供美学吸引力，且通常更具可持续性，但可能无法承受与钢材相同的负载。除了材料选择，“上弦”的几何形状也至关重要。“上弦”的形状和大小会显著影响桁架的整体性能。例如，更宽的“上弦”可以更均匀地分配负载，减少对单个构件的应力。工程师必须进行计算，以确保“上弦”能够承受预期的负载，包括活载（如人员和家具）和死载（结构本身的重量）。“上弦”的重要性不仅限于结构完整性；它在美学上也发挥着作用。在许多建筑设计中，“上弦”可能会暴露出来，成为建筑的视觉元素。这种结构和美学双重功能突显了在设计阶段进行仔细考虑的必要性。此外，“上弦”必须与桁架的其他组成部分协调工作，例如下弦和网格构件。这些元素之间的相互作用决定了结构的整体稳定性和强度。工程师使用先进的软件和建模技术来模拟“上弦”在各种条件下的行为，确保最终设计既安全又高效。总之，“上弦”是结构工程领域中的一个重要组成部分。它承载负载并为整体设计做出贡献，使其成为建筑师和工程师必须考虑的重要因素。通过理解“上弦”的特性和功能，专业人员可以创建既安全又实用，同时在视觉上也令人愉悦的结构。随着我们在建筑技术上不断进步，“上弦”的角色无疑会演变，但其在创建坚固耐用结构方面的重要性将始终如一。