statically indeterminate structure

简明释义

超静定结构

英英释义

例句

1.In construction, astatically indeterminate structure（静不定结构） can lead to unexpected stress distribution.

在建筑中，statically indeterminate structure（静不定结构）可能导致意外的应力分布。

2.Astatically indeterminate structure（静不定结构） often requires more support than a determinate one.

与确定结构相比，statically indeterminate structure（静不定结构）通常需要更多的支撑。

3.Engineers must analyze astatically indeterminate structure（静不定结构） using advanced methods to ensure stability.

工程师必须使用先进的方法分析statically indeterminate structure（静不定结构），以确保其稳定性。

4.The analysis of astatically indeterminate structure（静不定结构） requires understanding of both statics and materials science.

对statically indeterminate structure（静不定结构）的分析需要了解静力学和材料科学。

5.The design of a bridge often includes astatically indeterminate structure（静不定结构） to distribute loads more effectively.

桥梁的设计通常包含一个statically indeterminate structure（静不定结构），以更有效地分配荷载。

作文

In the field of civil engineering, understanding the concept of a statically indeterminate structure is crucial for designing safe and efficient buildings and bridges. A statically indeterminate structure is one that has more unknown forces than there are equations of equilibrium available to solve for them. This means that the structure's internal forces cannot be determined solely by using the basic principles of statics. Instead, additional methods, such as compatibility conditions or material properties, must be applied to find the unknowns. The significance of statically indeterminate structures lies in their ability to distribute loads more evenly across various members. Unlike statically determinate structures, which can fail if one member is compromised, a statically indeterminate structure can often sustain loads even when some elements are damaged. This redundancy makes them particularly desirable in the design of critical infrastructure, where safety is paramount.One common example of a statically indeterminate structure is a continuous beam that spans multiple supports. In this case, the reactions at the supports cannot be calculated through simple static analysis because the beam is held in place by more constraints than necessary. To analyze such a structure, engineers often employ methods like the force method or the displacement method, which allow for the calculation of internal forces and moments.Additionally, statically indeterminate structures can provide greater flexibility in design. Engineers can optimize materials and shapes to achieve desired performance characteristics without worrying about the failure of single points. This flexibility not only enhances structural integrity but also contributes to the aesthetic appeal of buildings and bridges. However, the complexity of analyzing statically indeterminate structures can pose challenges. The need for advanced computational tools and techniques is essential in modern engineering practice. Finite element analysis (FEA) is one such tool that allows engineers to model complex geometries and loading conditions, providing insights into how statically indeterminate structures will behave under various scenarios.In conclusion, the concept of statically indeterminate structures is fundamental in civil engineering. Their ability to distribute loads efficiently and maintain structural integrity under duress makes them invaluable in construction. While they require more complex analysis methods, the benefits they offer in terms of safety, durability, and design flexibility are undeniable. Understanding and mastering the principles surrounding statically indeterminate structures will undoubtedly lead to better engineering practices and safer infrastructures in the future.

在土木工程领域，理解“静不确定结构”的概念对设计安全高效的建筑和桥梁至关重要。“静不确定结构”是指未知力的数量超过可用平衡方程的数量的结构。这意味着结构的内部力不能仅通过使用静力学的基本原理来确定。相反，必须应用额外的方法，例如兼容性条件或材料特性，以找到未知数。“静不确定结构”的重要性在于它们能够更均匀地分配各种构件上的载荷。与静定结构不同，静定结构如果其中一个构件受到损坏就可能会失效，而“静不确定结构”通常可以在某些元素受损时承受载荷。这种冗余使它们在关键基础设施设计中尤为重要，因为安全是首要任务。“静不确定结构”的一个常见例子是跨越多个支撑的连续梁。在这种情况下，由于该梁受到的约束超过必要的数量，因此无法通过简单的静态分析计算支撑处的反应。为了分析这样的结构，工程师通常采用力法或位移法等方法，这些方法允许计算内部力和弯矩。此外，“静不确定结构”可以提供更大的设计灵活性。工程师可以优化材料和形状，以实现所需的性能特征，而无需担心单点的失效。这种灵活性不仅增强了结构的完整性，还提高了建筑物和桥梁的美观性。然而，分析“静不确定结构”的复杂性可能会带来挑战。在现代工程实践中，先进计算工具和技术的需求至关重要。有限元分析（FEA）就是这样一种工具，它允许工程师对复杂的几何形状和载荷条件进行建模，从而提供对“静不确定结构”在各种场景下行为的洞察。总之，“静不确定结构”的概念是土木工程中的基础。它们有效分配载荷并在压力下保持结构完整性的能力使它们在建筑中无价。尽管它们需要更复杂的分析方法，但它们在安全、耐久性和设计灵活性方面所提供的好处是不可否认的。理解和掌握围绕“静不确定结构”的原则无疑将导致更好的工程实践和未来更安全的基础设施。