top chord

简明释义

上舷

英英释义

例句

1.In this bridge, the top chord is made of high-strength steel for better durability.

在这座桥中，上弦由高强度钢材制成，以提高耐久性。

2.The design requires a strong top chord to ensure stability under heavy loads.

该设计需要一个强大的上弦以确保在重载下的稳定性。

3.The engineer specified that the top chord of the truss must support the weight of the roof.

工程师指定了桁架的上弦必须承受屋顶的重量。

4.We need to calculate the load distribution on the top chord before construction begins.

在施工开始之前，我们需要计算上弦上的荷载分布。

5.During the inspection, we found that the top chord had some signs of wear and tear.

在检查过程中，我们发现上弦有一些磨损的迹象。

作文

In the field of structural engineering, understanding the components of a truss is crucial for designing safe and efficient structures. One of the most important elements of a truss is the top chord, which plays a vital role in maintaining the integrity of the framework. The top chord refers to the upper horizontal member of a truss that supports the weight of the roof or other loads above it. It is designed to resist compression forces, ensuring that the structure remains stable under various conditions.When engineers design a truss, they must consider the materials used for the top chord. Common materials include steel, wood, and reinforced concrete, each offering different strengths and weaknesses. For instance, steel top chords are known for their high tensile strength, making them ideal for large-span structures like bridges and commercial buildings. On the other hand, wooden top chords are often favored in residential construction due to their aesthetic appeal and ease of handling.The geometry of the top chord is also significant in determining the overall performance of the truss. Engineers often employ different shapes, such as triangular or rectangular configurations, to optimize the load distribution. A well-designed top chord can effectively transfer loads to the vertical members of the truss, known as the web members, thereby reducing the risk of failure.Moreover, the top chord must be properly connected to other structural elements to ensure stability. Connections can be made using bolts, welds, or adhesives, depending on the materials involved and the specific requirements of the project. Proper connection techniques help distribute forces evenly across the top chord and prevent localized stress concentrations that could lead to structural failure.In addition to its structural function, the top chord also contributes to the overall aesthetics of a building. Architects often incorporate the design of the top chord into their vision for the structure, ensuring that it complements the overall look while fulfilling its functional requirements. This interplay between engineering and architecture highlights the importance of collaboration in the construction industry.To sum up, the top chord is a fundamental component of truss systems in structural engineering. Its ability to support loads, combined with the choice of materials and design considerations, makes it essential for creating safe and aesthetically pleasing structures. Understanding the role of the top chord not only enhances our knowledge of engineering principles but also illustrates the intricate balance between functionality and design in modern construction.

在结构工程领域，理解桁架的组成部分对设计安全高效的结构至关重要。桁架中最重要的元素之一是top chord，它在保持框架完整性方面发挥着至关重要的作用。top chord指的是桁架的上部水平构件，它支撑着屋顶或其他上方负载的重量。它被设计用来抵抗压缩力，确保结构在各种条件下保持稳定。当工程师设计桁架时，必须考虑用于top chord的材料。常见的材料包括钢、木材和钢筋混凝土，每种材料都有不同的优缺点。例如，钢制top chord以其高抗拉强度而闻名，非常适合用于大型跨度结构，如桥梁和商业建筑。另一方面，木制top chord由于其美观和易于处理，通常在住宅建筑中受到青睐。top chord的几何形状在确定桁架的整体性能方面也很重要。工程师通常采用三角形或矩形配置等不同形状，以优化负载分配。设计良好的top chord可以有效地将负载传递给桁架的垂直构件，即网格构件，从而减少失效的风险。此外，top chord必须与其他结构元素正确连接以确保稳定性。根据所涉及的材料和项目的具体要求，可以使用螺栓、焊接或粘合剂进行连接。正确的连接技术有助于均匀分配top chord上的力，并防止局部应力集中，这可能导致结构失效。除了其结构功能外，top chord还为建筑的整体美感做出了贡献。建筑师通常将top chord的设计融入他们对结构的愿景中，确保其在满足功能要求的同时与整体外观相辅相成。这种工程与建筑之间的相互作用突显了建筑行业合作的重要性。总之，top chord是结构工程中桁架系统的基本组成部分。它支撑负载的能力，加上材料选择和设计考虑，使其成为创建安全且美观的结构的必不可少的因素。理解top chord的作用不仅增强了我们对工程原理的知识，也展示了现代建筑中功能与设计之间的微妙平衡。