indeterminate structure

简明释义

超静定结构

英英释义

例句

1.Engineers often prefer indeterminate structures for their ability to handle unexpected loads.

工程师通常偏好不确定结构，因为它们能够处理意外荷载。

2.The indeterminate structure of the building allows for greater flexibility during seismic events.

建筑物的不确定结构在地震事件中允许更大的灵活性。

3.In structural engineering, an indeterminate structure is one that cannot be solved using static equilibrium equations alone.

在结构工程中，不确定结构是指不能仅通过静力平衡方程来解决的结构。

4.A bridge designed with an indeterminate structure can distribute loads more efficiently than a determinate one.

设计为不确定结构的桥梁可以比确定结构更有效地分配荷载。

5.The analysis of an indeterminate structure requires advanced methods such as the finite element method.

对不确定结构的分析需要使用诸如有限元法等高级方法。

作文

In the realm of architecture and engineering, the term indeterminate structure refers to a system that has more unknown forces or reactions than there are equations available to solve for them. This concept is crucial for understanding how various structures behave under different loads and conditions. An indeterminate structure can be contrasted with a determinate structure, where the number of reactions is equal to the number of equilibrium equations. The complexity of indeterminate structures often makes them more challenging to analyze, yet they also provide greater stability and resilience in many cases.For instance, consider a bridge designed to span a wide river. If the bridge is a simple beam supported at both ends, it is a determinate structure; we can easily calculate the forces acting on it. However, if the bridge includes multiple supports or arches, it becomes an indeterminate structure. The additional supports create a redundancy in the system, allowing it to carry more load without failing. This characteristic is particularly advantageous in civil engineering, where safety and durability are paramount.The analysis of indeterminate structures often requires advanced mathematical techniques and tools such as finite element analysis (FEA). Engineers must account for various factors, including material properties, load distributions, and support conditions. The intricate nature of these structures means that small changes can lead to significant differences in performance. Therefore, understanding the behavior of indeterminate structures is vital for ensuring that they meet safety standards and function as intended.Moreover, indeterminate structures are prevalent not only in bridges but also in high-rise buildings, dams, and other large-scale constructions. Their ability to distribute loads more evenly across multiple supports enhances their structural integrity. For example, in a skyscraper, the use of an indeterminate structure allows for the efficient transfer of weight from the upper floors down to the foundation, minimizing the risk of collapse during extreme weather events such as hurricanes or earthquakes.In conclusion, the study of indeterminate structures is an essential aspect of engineering that enables the creation of safe and resilient structures. While they present certain analytical challenges, the benefits they offer in terms of stability and load-bearing capacity make them a preferred choice in many applications. As technology advances and computational methods improve, our ability to analyze and design indeterminate structures will continue to evolve, leading to even safer and more efficient designs in the future.

在建筑和工程领域，术语不确定结构指的是一个系统，其未知的力或反应数量超过可用于求解它们的方程数量。这个概念对于理解各种结构在不同负载和条件下的行为至关重要。不确定结构可以与确定结构进行对比，后者的反应数量等于平衡方程的数量。不确定结构的复杂性通常使其分析更具挑战性，但在许多情况下，它们也提供了更大的稳定性和韧性。例如，考虑一座设计用来跨越宽阔河流的桥梁。如果这座桥是一根简单的梁，在两端支撑，那么它就是一个确定结构；我们可以很容易地计算作用在其上的力。然而，如果这座桥包括多个支撑或拱形结构，它就变成了一个不确定结构。额外的支撑在系统中创造了冗余，使其能够承受更多的负载而不发生故障。这种特性在土木工程中尤其有利，因为安全性和耐久性至关重要。对不确定结构的分析通常需要先进的数学技术和工具，例如有限元分析（FEA）。工程师必须考虑各种因素，包括材料特性、负载分布和支撑条件。这些结构的复杂性质意味着小的变化可能导致性能的显著差异。因此，理解不确定结构的行为对于确保它们符合安全标准并按预期功能至关重要。此外，不确定结构不仅在桥梁中普遍存在，也广泛应用于高层建筑、大坝和其他大型建筑中。它们能够更均匀地分配负载到多个支撑上，从而增强其结构完整性。例如，在一座摩天大楼中，使用不确定结构可以有效地将上层楼的重量传递到基础，最小化在极端天气事件（如飓风或地震）期间倒塌的风险。总之，研究不确定结构是工程学的一个重要方面，使得安全和韧性结构的创建成为可能。尽管它们在分析上存在某些挑战，但它们在稳定性和承载能力方面所提供的好处使它们在许多应用中成为首选。随着技术的进步和计算方法的改进，我们分析和设计不确定结构的能力将继续发展，从而在未来带来更安全、更高效的设计。