statically determinate beam

简明释义

静定梁

英英释义

例句

1.In structural engineering, a statically determinate beam 静定梁 can be analyzed without considering the internal forces.

在结构工程中，静定梁 statically determinate beam 可以在不考虑内部力的情况下进行分析。

2.When designing bridges, engineers often prefer using a statically determinate beam 静定梁 for its simplicity in calculations.

在设计桥梁时，工程师通常更喜欢使用静定梁 statically determinate beam，因为它在计算上更简单。

3.In a physics class, we learned that a statically determinate beam 静定梁 can be solved using only equilibrium equations.

在物理课上，我们了解到，静定梁 statically determinate beam 只需使用平衡方程就可以求解。

4.For small buildings, a statically determinate beam 静定梁 is often sufficient to support the roof.

对于小型建筑，静定梁 statically determinate beam 通常足以支撑屋顶。

5.A statically determinate beam 静定梁 has enough supports to prevent any movement under load.

一根静定梁 statically determinate beam 有足够的支撑来防止在载荷下的任何移动。

作文

In the field of structural engineering, understanding the concept of a statically determinate beam is fundamental for analyzing and designing safe structures. A statically determinate beam is a beam that can be analyzed using the equations of static equilibrium alone, without the need for additional information about material properties or deformation. This means that all the forces and moments acting on the beam can be determined solely from the applied loads and support reactions. The significance of this concept lies in its simplicity and reliability in ensuring that structures can withstand various loads without experiencing excessive deflection or failure.The basic principle behind a statically determinate beam is that it has enough support conditions to maintain equilibrium but not so many that it becomes overly constrained. Typically, these beams have pin supports or roller supports at their ends, allowing them to rotate freely while still providing stability. For example, consider a simple beam supported at both ends with a load applied at the center. In this scenario, engineers can easily calculate the reactions at the supports using the sum of vertical forces and moments. The ability to solve for these reactions without complex calculations makes statically determinate beams a popular choice in construction.One of the key advantages of statically determinate beams is that they do not develop internal stresses due to support constraints. When a beam is statically determinate, the internal forces can be calculated directly from the external loads, which simplifies the design process. This characteristic allows engineers to predict how the beam will behave under various loading conditions, ensuring that safety factors are met without unnecessary overengineering. As a result, statically determinate beams are often used in bridges, buildings, and other structures where straightforward analysis is essential.However, it is important to note that while statically determinate beams are easier to analyze, they may not always be the most efficient solution for every structural problem. In some cases, structures may require additional support or constraints to manage larger loads or span greater distances. In these situations, engineers might opt for statically indeterminate beams, which involve more complex calculations but can provide enhanced performance and stability.Moreover, the design of a statically determinate beam must also consider factors such as material selection, load types, and environmental conditions. The materials used in constructing the beam must have adequate strength and durability to handle the expected loads. Additionally, the types of loads—whether they are static, dynamic, or impact loads—play a crucial role in determining the beam's performance. Engineers must ensure that the beam can accommodate these loads without exceeding material limits or causing undue deflection.In conclusion, the concept of a statically determinate beam is essential for civil and structural engineers. Its ability to be analyzed using basic static principles makes it a reliable choice for many applications. Understanding the characteristics and limitations of statically determinate beams enables engineers to make informed decisions when designing structures that are safe, efficient, and capable of withstanding the demands placed upon them. As we continue to advance in engineering practices and technologies, the fundamental principles surrounding statically determinate beams remain a cornerstone of effective structural design.

在结构工程领域，理解“静定梁”的概念对于分析和设计安全结构至关重要。“静定梁”是指可以仅使用静力平衡方程进行分析的梁，而无需额外的信息关于材料特性或变形。这意味着作用在梁上的所有力量和力矩都可以仅通过施加的载荷和支撑反应来确定。这个概念的重要性在于它的简单性和可靠性，确保结构能够承受各种载荷而不出现过度挠曲或失效。“静定梁”背后的基本原理是，它具有足够的支撑条件以维持平衡，但又不会过于约束。通常，这些梁在两端有铰支座或滚动支座，使其可以自由旋转，同时提供稳定性。例如，考虑一种简单的梁，两端支撑，中间施加了载荷。在这种情况下，工程师可以使用垂直力和力矩的总和轻松计算支撑处的反应。能够在没有复杂计算的情况下解决这些反应，使得“静定梁”成为建筑中的热门选择。“静定梁”的一个关键优点是，它们不会因支撑约束而产生内应力。当梁是静定的时，内部力可以直接从外部载荷计算出来，这简化了设计过程。这个特性使得工程师能够预测梁在各种载荷条件下的表现，确保安全系数得到满足，而不必进行不必要的过度设计。因此，“静定梁”通常用于桥梁、建筑物和其他结构中，在这些地方，简单的分析是必不可少的。然而，重要的是要注意，虽然“静定梁”更易于分析，但并不总是每个结构问题的最有效解决方案。在某些情况下，结构可能需要额外的支撑或约束来管理更大的载荷或跨越更大的距离。在这些情况下，工程师可能会选择“静不定梁”，这涉及更复杂的计算，但可以提供更好的性能和稳定性。此外，“静定梁”的设计还必须考虑材料选择、载荷类型和环境条件。构造梁所用的材料必须具有足够的强度和耐久性，以处理预期的载荷。此外，载荷的类型——无论是静态、动态还是冲击载荷——在确定梁的性能中起着至关重要的作用。工程师必须确保梁能够承受这些载荷，而不超过材料极限或导致过度挠曲。总之，“静定梁”的概念对土木和结构工程师至关重要。它能够仅使用基本的静力学原理进行分析，使其成为许多应用中的可靠选择。理解“静定梁”的特性和局限性使得工程师能够在设计安全、高效且能够承受所施加需求的结构时做出明智的决策。随着我们在工程实践和技术方面的不断进步，围绕“静定梁”的基本原则仍然是有效结构设计的基石。