plastic hinge

简明释义

塑胶铰链

英英释义

例句

1.During the earthquake simulation, the engineers observed how the plastic hinge functioned to absorb energy.

在地震模拟中，工程师观察了塑性铰链如何发挥作用以吸收能量。

2.A plastic hinge allows for rotation without causing permanent deformation in the structure.

塑性铰链允许旋转而不导致结构的永久变形。

3.In structural analysis, a plastic hinge can indicate failure points in a beam under excessive stress.

在结构分析中，塑性铰链可以指示梁在过度应力下的失效点。

4.The architect chose a design that included plastic hinges for better performance during wind loads.

建筑师选择了一种设计，包含塑性铰链以在风荷载下获得更好的性能。

5.The design of the bridge incorporates a plastic hinge to allow for flexibility under load.

这座桥的设计采用了塑性铰链以在荷载下提供灵活性。

作文

In the field of structural engineering, understanding the concept of a plastic hinge is crucial for analyzing and designing structures that can withstand various loads and forces. A plastic hinge refers to a point in a structure where plastic deformation occurs due to applied moments, allowing the structure to rotate without additional bending moments being applied. This phenomenon is particularly significant in the analysis of beams and frames under load, as it provides insight into how structures behave when they reach their yield strength.When a beam is subjected to bending, it initially behaves elastically, meaning that it will return to its original shape once the load is removed. However, as the load increases, there comes a point where the material begins to yield, and the beam enters the plastic region. At this stage, the formation of a plastic hinge can occur, which allows for rotation at that specific point while the rest of the beam remains elastic. This behavior is essential in ensuring that structures can accommodate movements caused by factors such as temperature changes, settlement, or seismic activity.The significance of plastic hinges can be observed in the design of moment-resisting frames, which are commonly used in earthquake-prone areas. Engineers intentionally design certain joints to form plastic hinges during extreme loading conditions, allowing the structure to absorb energy and prevent catastrophic failure. By controlling where these hinges form, engineers can create a desired failure mechanism that protects other critical elements of the structure.Moreover, the analysis of plastic hinges is vital for understanding the overall stability and safety of a structure. When a structure undergoes excessive loading, the formation of multiple plastic hinges can lead to a mechanism that results in the collapse of the structure. Therefore, engineers must carefully consider the locations and number of plastic hinges during the design phase to ensure that the structure can maintain its integrity under various conditions.In summary, the concept of a plastic hinge plays a fundamental role in the field of structural engineering. It allows engineers to predict how structures will behave under load, particularly in the plastic range of deformation. By understanding the mechanics behind plastic hinges, engineers can design safer and more resilient structures capable of withstanding dynamic forces. As we continue to develop our infrastructure, the knowledge of plastic hinges will remain a pivotal aspect of engineering practices, ensuring that our built environment is both functional and secure.In conclusion, a plastic hinge (塑性铰) is not just a theoretical concept but a practical tool that aids engineers in creating structures that can adapt and respond to the demands placed upon them. The ability to manage and predict the formation of plastic hinges ensures that structures can endure the test of time and the forces of nature, ultimately safeguarding lives and investments.

在结构工程领域，理解“塑性铰”这一概念对于分析和设计能够承受各种载荷和力的结构至关重要。“塑性铰”是指在结构中由于施加的弯矩而发生塑性变形的点，使得结构可以在不施加额外弯矩的情况下旋转。这一现象在载荷下对梁和框架的分析中尤为重要，因为它提供了对结构在达到屈服强度时行为的洞察。当梁受到弯曲时，它最初表现出弹性，即一旦移除载荷，它将恢复到原始形状。然而，随着载荷的增加，会出现一个点，材料开始屈服，梁进入塑性区域。在这个阶段，可以形成“塑性铰”，这允许该特定点的旋转，而梁的其余部分保持弹性。这种行为对于确保结构能够适应温度变化、沉降或地震活动等因素引起的运动至关重要。“塑性铰”的重要性可以在抗弯框架的设计中观察到，这些框架通常用于地震多发地区。工程师故意设计某些节点在极端载荷条件下形成“塑性铰”，使结构能够吸收能量并防止灾难性破坏。通过控制这些铰链形成的位置，工程师可以创建一种期望的破坏机制，从而保护结构的其他关键元素。此外，“塑性铰”的分析对于理解结构的整体稳定性和安全性至关重要。当结构经历过度载荷时，多个“塑性铰”的形成可能导致机制的形成，最终导致结构的倒塌。因此，工程师在设计阶段必须仔细考虑“塑性铰”的数量和位置，以确保结构能够在各种条件下保持完整性。总之，“塑性铰”的概念在结构工程领域中发挥着基础性作用。它使工程师能够预测结构在载荷下的行为，特别是在塑性变形的范围内。通过理解“塑性铰”背后的力学，工程师可以设计出更安全、更具韧性的结构，能够承受动态力量。随着我们继续发展基础设施，对“塑性铰”的知识将仍然是工程实践中的关键方面，确保我们建造的环境既功能齐全又安全可靠。最后，“塑性铰”不仅是一个理论概念，而是一个实用工具，帮助工程师创造能够适应和应对施加于其上的需求的结构。管理和预测“塑性铰”形成的能力确保结构能够经受时间的考验和自然力量的考验，最终保障生命和投资的安全。