section modulus

简明释义

截面系数

英英释义

例句

1.A higher section modulus indicates a stronger structural element.

更高的截面模量表示结构元件更强。

2.In bridge design, the section modulus is critical for ensuring safety and stability.

在桥梁设计中，截面模量对确保安全和稳定至关重要。

3.The section modulus of a circular pipe can be calculated using its radius.

圆形管道的截面模量可以通过其半径计算得出。

4.To optimize material usage, we need to analyze the section modulus of various shapes.

为了优化材料使用，我们需要分析各种形状的截面模量。

5.The engineer calculated the section modulus to ensure the beam could withstand the applied loads.

工程师计算了截面模量以确保梁能够承受施加的载荷。

作文

The concept of section modulus is fundamental in the field of structural engineering and design. It is a geometric property that helps engineers determine the strength and stability of various structural elements such as beams, columns, and plates. The section modulus is defined as the ratio of the moment of inertia to the distance from the neutral axis to the outermost fiber of the section. This measurement allows engineers to assess how much bending stress a particular cross-section can withstand before failing. Understanding the section modulus is crucial for ensuring that structures are safe and effective. When designing a beam, for example, engineers must consider the loads that will be applied to it, including dead loads (the weight of the structure itself) and live loads (the weight of occupants and furniture). By calculating the section modulus, they can select materials and dimensions that will adequately support these loads while minimizing the risk of failure.In practice, the section modulus varies depending on the shape and size of the structural element. For instance, a wide-flange beam has a higher section modulus compared to a standard I-beam of the same height due to its broader flanges. This means that the wide-flange beam can carry more load without experiencing excessive bending stress. Therefore, engineers often choose shapes with higher section modulus values when designing structures that need to bear significant loads.Moreover, the section modulus is not only important for new designs but also plays a critical role in assessing existing structures. Engineers often conduct evaluations of aging buildings or bridges to ensure they still meet safety standards. By analyzing the section modulus of critical components, they can identify whether any parts of the structure have deteriorated or if additional reinforcements are necessary.In conclusion, the section modulus is an essential concept in structural engineering that aids in the design and analysis of various structural components. Its importance cannot be overstated, as it directly impacts the safety and durability of structures we rely on every day. Understanding and applying the principles of section modulus is vital for engineers to create robust and reliable designs that can withstand the forces of nature and human use. As technology advances, the methods for calculating and applying section modulus will continue to evolve, enhancing our ability to construct safer and more efficient structures.

“截面模量”这个概念在结构工程和设计领域是基础性的。它是一个几何属性，帮助工程师确定各种结构元件（如梁、柱和板）的强度和稳定性。“截面模量”的定义是惯性矩与从中性轴到截面最外层纤维的距离的比率。这个测量允许工程师评估特定横截面在失效之前能够承受多少弯曲应力。理解“截面模量”对于确保结构的安全性和有效性至关重要。例如，在设计梁时，工程师必须考虑施加于其上的荷载，包括死荷载（结构本身的重量）和活荷载（居住者和家具的重量）。通过计算“截面模量”，他们可以选择适当的材料和尺寸，以充分支持这些荷载，同时将失效风险降至最低。在实践中，“截面模量”因结构元件的形状和大小而异。例如，宽翼缘梁相比相同高度的标准工字梁具有更高的“截面模量”，这意味着宽翼缘梁在不经历过度弯曲应力的情况下可以承载更多的荷载。因此，工程师在设计需要承载重大荷载的结构时，通常会选择具有较高“截面模量”值的形状。此外，“截面模量”不仅对新设计重要，在评估现有结构时也起着关键作用。工程师经常对老化建筑或桥梁进行评估，以确保它们仍然符合安全标准。通过分析关键组件的“截面模量”，他们可以识别出结构的哪些部分已经退化，或者是否需要额外的加固。总之，“截面模量”是结构工程中的一个基本概念，有助于各种结构组件的设计和分析。它的重要性不容小觑，因为它直接影响我们每天依赖的结构的安全性和耐久性。理解和应用“截面模量”的原理对于工程师创造坚固可靠的设计至关重要，这些设计能够承受自然和人类使用的力量。随着技术的进步，计算和应用“截面模量”的方法将继续发展，提高我们构建更安全和更高效结构的能力。