point of contraflexure

简明释义

拐点

英英释义

例句

1.Understanding the point of contraflexure 反弯点 is essential for predicting deflections in a cantilever beam.

理解反弯点 point of contraflexure对于预测悬臂梁的挠度至关重要。

2.The engineer identified the point of contraflexure 反弯点 in the beam design to ensure it could withstand the applied loads.

工程师在梁设计中识别了反弯点 point of contraflexure，以确保其能够承受施加的载荷。

3.In bridge design, locating the point of contraflexure 反弯点 helps in optimizing material usage and ensuring safety.

在桥梁设计中，定位反弯点 point of contraflexure有助于优化材料使用并确保安全性。

4.The architect marked the point of contraflexure 反弯点 on the structural drawings to guide construction.

建筑师在结构图纸上标记了反弯点 point of contraflexure以指导施工。

5.During the analysis, we found that the point of contraflexure 反弯点 occurred at mid-span, which is crucial for reinforcement placement.

在分析过程中，我们发现反弯点 point of contraflexure发生在跨中，这对于加固位置至关重要。

作文

In the field of structural engineering, understanding various concepts is crucial for designing safe and efficient structures. One such concept is the point of contraflexure, which plays a vital role in analyzing bending moments within beams. The point of contraflexure refers to a specific location along a beam where the bending moment changes sign, indicating a transition from positive to negative bending or vice versa. This point is significant because it represents a position where the internal stresses within the beam are at a minimum, leading to zero bending moment. To comprehend the importance of the point of contraflexure, we must first understand how beams behave under loads. When a load is applied to a beam, it experiences bending, resulting in tension and compression forces acting on different sides of the beam. As the load varies along the length of the beam, the bending moment also changes, creating regions of maximum and minimum stress. The point of contraflexure serves as a critical indicator for engineers when assessing the structural integrity of a beam. Identifying the point of contraflexure is essential during the design process, as it helps engineers determine where reinforcements or supports may be necessary. For example, in a simply supported beam subjected to a uniform load, the point of contraflexure typically occurs at the midpoint of the beam. However, in more complex loading scenarios or continuous beams, multiple points of contraflexure may exist. Understanding these points allows engineers to optimize material usage and enhance the overall strength of the structure while minimizing costs. Moreover, the point of contraflexure has implications beyond mere structural analysis. It can influence decisions regarding the placement of architectural elements, such as windows or openings, that could affect the beam's performance. By strategically locating these features away from the point of contraflexure, architects can ensure that the structural integrity remains intact while achieving aesthetic goals. In conclusion, the point of contraflexure is a fundamental concept in structural engineering that signifies the location along a beam where the bending moment is zero. Its identification is crucial for ensuring the safety and efficiency of structures. By understanding and applying this concept, engineers can create designs that not only meet functional requirements but also stand the test of time. Therefore, mastering the point of contraflexure is essential for anyone involved in the field of structural engineering, as it directly impacts the quality and durability of constructed environments.

在结构工程领域，理解各种概念对于设计安全高效的结构至关重要。其中一个概念是反弯点，它在分析梁的弯矩时起着重要作用。反弯点指的是梁上某个特定位置，在该位置处，弯矩发生符号变化，表明从正弯矩转变为负弯矩或反之亦然。这个点非常重要，因为它代表着梁内应力达到最小值的位置，导致弯矩为零。要理解反弯点的重要性，我们首先必须了解梁在荷载下的行为。当荷载施加到梁上时，它会经历弯曲，导致不同侧面产生拉伸和压缩力。随着荷载沿梁的长度变化，弯矩也会变化，形成最大和最小应力区域。反弯点作为工程师评估梁的结构完整性的关键指标。在设计过程中识别反弯点是必不可少的，因为它帮助工程师确定需要加固或支撑的位置。例如，在受均匀荷载作用的简单支撑梁中，反弯点通常出现在梁的中点。然而，在更复杂的荷载场景或连续梁中，可能存在多个反弯点。理解这些点使工程师能够优化材料使用，提高结构的整体强度，同时降低成本。此外，反弯点不仅在结构分析中具有影响。它还可以影响关于建筑元素（例如窗户或开口）的放置决策，这些元素可能会影响梁的性能。通过将这些特征战略性地放置在远离反弯点的位置，建筑师可以确保结构的完整性保持不变，同时实现美学目标。总之，反弯点是结构工程中的一个基本概念，表示梁上弯矩为零的位置。识别它对于确保结构的安全性和效率至关重要。通过理解和应用这一概念，工程师可以创造出不仅满足功能要求而且经得起时间考验的设计。因此，掌握反弯点对于任何参与结构工程领域的人来说都是必不可少的，因为它直接影响到建造环境的质量和耐久性。