post tensioning

简明释义

后张拉

英英释义

例句

1.During the construction meeting, they discussed the implementation of post tensioning 后张预应力 to enhance the structural integrity of the building.

在施工会议上，他们讨论了实施后张预应力以增强建筑物结构完整性的问题。

2.The use of post tensioning 后张预应力 allowed for longer spans without additional supports in the parking garage.

使用后张预应力使停车场能够在没有额外支撑的情况下实现更长的跨度。

3.After the installation of the post tensioning 后张预应力 cables, the team conducted a thorough inspection to ensure safety.

在安装后张预应力钢缆后，团队进行了全面检查以确保安全。

4.The contractor recommended post tensioning 后张预应力 as a solution to control deflection in the slab.

承包商建议使用后张预应力作为控制板材挠度的解决方案。

5.The engineer explained the benefits of post tensioning 后张预应力 in reducing the amount of concrete required for the bridge.

工程师解释了后张预应力在减少桥梁所需混凝土量方面的好处。

作文

In the field of civil engineering, various techniques are employed to enhance the strength and durability of structures. One such method is post tensioning, which has gained significant popularity in recent years. This technique involves the use of high-strength steel tendons that are placed within the concrete before it is cast. Once the concrete has cured, these tendons are tensioned, or pulled tight, to create a compressive force that helps to counteract the tensile stresses that the structure will face during its lifespan. The primary advantage of post tensioning is that it allows for longer spans and thinner slabs, which can lead to material savings and more aesthetically pleasing designs.The process of post tensioning begins with the installation of ducts or sleeves within the concrete formwork. These ducts are strategically placed to ensure that the steel tendons can be easily threaded through them after the concrete has set. Once the concrete reaches sufficient strength, hydraulic jacks are used to apply tension to the tendons. This tensioning process is critical, as it effectively compresses the concrete, making it more resistant to cracking and other forms of structural failure.One of the most notable applications of post tensioning is in the construction of bridges. The ability to create long spans without the need for excessive support columns makes this technique ideal for spanning large distances. Additionally, post tensioning can be used in parking garages, high-rise buildings, and even residential homes, showcasing its versatility across different types of construction projects.However, while post tensioning offers many benefits, it also comes with certain challenges. Proper design and execution are crucial, as any miscalculation in the tensioning process can lead to serious structural issues. Furthermore, the initial cost of post tensioning systems can be higher than traditional reinforcement methods, which may deter some builders from adopting this technology.Despite these challenges, the advantages of post tensioning often outweigh the drawbacks. Engineers and architects appreciate the flexibility it provides in design, allowing for innovative solutions to complex structural problems. As the construction industry continues to evolve, the adoption of advanced techniques like post tensioning will likely increase, paving the way for stronger, more efficient structures that meet the demands of modern society.In conclusion, post tensioning is a vital technique in modern civil engineering that enhances the performance and longevity of concrete structures. By understanding and mastering the principles of post tensioning, engineers can contribute to the development of safer and more efficient buildings and infrastructure. As we look to the future, it is clear that post tensioning will play a significant role in shaping the landscape of construction and engineering.

在土木工程领域，各种技术被用来增强结构的强度和耐久性。其中一种方法是后张预应力，近年来获得了显著的普及。这种技术涉及使用高强度钢筋，这些钢筋在混凝土浇筑之前放置在其中。一旦混凝土固化，这些钢筋就会被拉紧或拉紧，以产生一种压缩力，从而帮助抵消结构在其使用寿命内所面临的拉伸应力。后张预应力的主要优点是，它允许更长的跨度和更薄的板，这可以节省材料并实现更美观的设计。后张预应力的过程始于在混凝土模板中安装管道或套管。这些管道被战略性地放置，以确保钢筋可以在混凝土设置后轻松穿过它们。混凝土达到足够的强度后，使用液压千斤顶对钢筋施加张力。这个张紧过程至关重要，因为它有效地压缩了混凝土，使其更能抵抗开裂和其他形式的结构失效。后张预应力最显著的应用之一是在桥梁的建设中。能够在不需要过多支撑柱的情况下创建长跨度，使得这种技术非常适合跨越大距离。此外，后张预应力还可以用于停车场、高层建筑甚至住宅，展示了其在不同类型的建筑项目中的多样性。然而，虽然后张预应力提供了许多好处，但也伴随着某些挑战。适当的设计和执行至关重要，因为在张紧过程中任何计算错误都可能导致严重的结构问题。此外，后张预应力系统的初期成本可能高于传统的加固方法，这可能会阻止一些建筑商采用这项技术。尽管面临这些挑战，后张预应力的优势往往超过缺点。工程师和建筑师欣赏它在设计中提供的灵活性，使他们能够为复杂的结构问题提供创新解决方案。随着建筑行业的不断发展，像后张预应力这样的先进技术的采用可能会增加，为建造满足现代社会需求的更强大、更高效的结构铺平道路。总之，后张预应力是现代土木工程中一种重要的技术，它增强了混凝土结构的性能和耐久性。通过理解和掌握后张预应力的原理，工程师可以为开发更安全、更高效的建筑和基础设施做出贡献。展望未来，显然后张预应力将在塑造建筑和工程的格局中发挥重要作用。