limit of deflection

简明释义

挠度极限

英英释义

例句

1.The engineer calculated the limit of deflection to ensure the bridge would not sag under heavy loads.

工程师计算了挠度极限以确保桥梁在重载下不会下沉。

2.Exceeding the limit of deflection can lead to structural failure and safety hazards.

超过挠度极限可能导致结构失效和安全隐患。

3.The limit of deflection for this beam is critical for maintaining its integrity.

这根梁的挠度极限对于保持其完整性至关重要。

4.We tested the material to determine its limit of deflection before finalizing the design.

我们测试了材料以确定其挠度极限，然后再最终确定设计。

5.In designing the building, we must adhere to the limit of deflection specified in the structural code.

在设计建筑时，我们必须遵循结构规范中规定的挠度极限。

作文

In the field of engineering, particularly in structural and civil engineering, understanding the behavior of materials under load is crucial. One important concept that engineers must grasp is the limit of deflection, which refers to the maximum allowable displacement or bending of a structural element when subjected to forces. This concept is vital for ensuring the safety and functionality of structures such as bridges, buildings, and other infrastructures. The limit of deflection is determined based on various factors, including the material properties, the type of loading, and the intended use of the structure.When designing a structure, engineers must consider how much deflection will occur under expected loads. Excessive deflection can lead to structural failure, aesthetic issues, and even safety hazards. For example, in a bridge, if the limit of deflection is exceeded, it could result in a loss of integrity, making it unsafe for vehicles to cross. Therefore, engineers often refer to building codes and standards that specify acceptable limits for deflection in different types of structures.The calculation of the limit of deflection typically involves mathematical formulas derived from the principles of mechanics and material science. These calculations take into account the geometry of the structure, the material's elastic modulus, and the loading conditions. By applying these principles, engineers can predict how much a beam, column, or slab will deflect under a given load, allowing them to design accordingly.Moreover, the limit of deflection is not only a matter of safety but also affects the performance of the structure. For instance, in buildings, excessive deflection can lead to problems such as cracking of walls, misalignment of doors and windows, and discomfort for occupants due to vibrations. Thus, maintaining deflection within acceptable limits is essential for both structural integrity and user comfort.To illustrate the importance of the limit of deflection, consider the case of a cantilever beam extending from a wall. If this beam is designed to support a heavy load, the engineer must calculate the expected deflection at the free end of the beam. If the deflection exceeds the limit of deflection, it may indicate that the beam is insufficiently sized or that the material used is not appropriate for the load it must carry. In such cases, modifications must be made to ensure that the design meets safety standards.In conclusion, the limit of deflection is a critical parameter in structural engineering that influences the design and safety of buildings and other structures. By understanding and applying this concept, engineers can create safe, efficient, and durable structures that meet the needs of society. As technology and materials continue to evolve, the methods for calculating and assessing the limit of deflection will also advance, allowing for even more innovative designs and safer infrastructures.

在工程领域，特别是结构和土木工程中，理解材料在负载下的行为至关重要。工程师必须掌握的一个重要概念是挠度极限，它指的是在施加力时，结构元件允许的最大位移或弯曲。这个概念对于确保桥梁、建筑物和其他基础设施的安全性和功能性至关重要。挠度极限是根据各种因素确定的，包括材料特性、加载类型和结构的预期用途。在设计结构时，工程师必须考虑在预期负载下会发生多少挠度。过度的挠度可能导致结构失效、美观问题，甚至安全隐患。例如，在一座桥上，如果超出了挠度极限，可能会导致结构完整性丧失，使车辆无法安全通行。因此，工程师通常参考建筑规范和标准，规定不同类型结构的可接受挠度限制。挠度极限的计算通常涉及从力学和材料科学原理推导出的数学公式。这些计算考虑了结构的几何形状、材料的弹性模量和加载条件。通过应用这些原理，工程师可以预测在给定负载下梁、柱或板的挠度，从而使他们能够进行相应的设计。此外，挠度极限不仅关乎安全，还影响结构的性能。例如，在建筑物中，过度的挠度可能导致墙体开裂、门窗错位以及由于振动导致的居住者不适。因此，将挠度保持在可接受的范围内对于结构完整性和用户舒适度都是至关重要的。为了说明挠度极限的重要性，可以考虑一根从墙壁延伸出的悬臂梁。如果这根梁被设计用来支撑重负载，工程师必须计算梁自由端的预期挠度。如果挠度超过了挠度极限，这可能表明梁的尺寸不足，或者所用材料不适合其必须承载的负载。在这种情况下，必须进行修改以确保设计符合安全标准。总之，挠度极限是结构工程中的一个关键参数，它影响建筑物和其他结构的设计和安全性。通过理解和应用这一概念，工程师可以创建安全、高效和耐用的结构，以满足社会的需求。随着技术和材料的不断发展，计算和评估挠度极限的方法也将不断进步，从而允许更具创新性的设计和更安全的基础设施。