post tensioned construction

简明释义

后张拉结构

英英释义

Post tensioned construction is a method of reinforcing concrete by placing high-strength steel strands or cables within the concrete and then tensioning them after the concrete has cured, which enhances the structural capacity and reduces cracking.

后张预应力混凝土是一种通过在混凝土中放置高强度钢绞线或钢缆，并在混凝土固化后对其进行张拉的加固方法，这增强了结构承载能力并减少了开裂。

例句

1.The use of post tensioned construction 后张预应力施工 allows for longer spans without the need for additional support.

使用后张预应力施工可以实现更长的跨距，而无需额外的支撑。

2.Many modern parking garages utilize post tensioned construction 后张预应力施工 for efficient space management.

许多现代停车场利用后张预应力施工来实现高效的空间管理。

3.In high-rise buildings, post tensioned construction 后张预应力施工 provides enhanced stability and reduces material costs.

在高层建筑中，后张预应力施工提供了更好的稳定性，并降低了材料成本。

4.Engineers prefer post tensioned construction 后张预应力施工 for its ability to minimize deflection in large slabs.

工程师更喜欢后张预应力施工，因为它能够最小化大板的挠度。

5.The bridge was designed using post tensioned construction 后张预应力施工 techniques to withstand heavy traffic loads.

这座桥采用了后张预应力施工技术，以承受重型交通负荷。

作文

Post tensioned construction is a modern technique used in the building industry that enhances the structural integrity and durability of concrete structures. This method involves the use of high-strength steel strands or cables that are placed within the concrete before it is poured. Once the concrete has cured, these strands are tensioned, which compresses the concrete and allows it to withstand greater loads and resist cracking. The concept of post tensioned construction (后张预应力施工) is particularly beneficial for large spans, such as bridges and parking garages, where traditional concrete methods may fall short in terms of strength and stability.One of the primary advantages of post tensioned construction (后张预应力施工) is its ability to reduce the amount of material needed for a structure. By utilizing the tensile strength of the steel strands, engineers can design thinner slabs and lighter beams without compromising safety. This not only saves on material costs but also reduces the overall weight of the building, leading to lower foundation requirements and potentially decreasing construction time.Moreover, post tensioned construction (后张预应力施工) allows for greater flexibility in architectural design. With the ability to create longer spans without the need for intermediate supports, architects can explore more innovative and open layouts. This is particularly advantageous in commercial buildings where open spaces are desired for aesthetic and functional purposes.The application of post tensioned construction (后张预应力施工) extends beyond just aesthetic benefits; it significantly improves the performance of structures under various conditions. For instance, structures built using this technique exhibit enhanced resistance to seismic forces, making them ideal for areas prone to earthquakes. The tensioning of the steel cables counteracts the tensile forces that occur during such events, providing an added layer of safety.In addition to seismic resistance, post tensioned construction (后张预应力施工) also performs well in environments exposed to harsh weather conditions. The compressive forces introduced into the concrete help to prevent water infiltration and subsequent freeze-thaw damage, extending the lifespan of the structure. This durability makes it a preferred choice for infrastructure projects, such as highways and bridges, where longevity and maintenance are critical considerations.However, while the benefits of post tensioned construction (后张预应力施工) are significant, it is important to note that this technique requires skilled labor and careful planning. The installation of the tensioning system must be executed with precision to ensure the safety and effectiveness of the structure. Additionally, the cost of materials and specialized equipment can be higher than traditional methods, which may deter some builders from adopting this technology.In conclusion, post tensioned construction (后张预应力施工) represents a significant advancement in construction techniques that offers numerous benefits, including material savings, design flexibility, enhanced durability, and improved performance under various conditions. As the construction industry continues to evolve, the adoption of such innovative methods will be crucial in meeting the demands of modern architecture and infrastructure. It is essential for engineers and architects to embrace these advancements and incorporate them into their projects to create safer, more efficient, and sustainable buildings.

后张预应力施工是一种现代建筑技术，旨在增强混凝土结构的整体性和耐久性。这种方法涉及在浇筑混凝土之前，将高强度钢绞线或钢缆放置在混凝土中。一旦混凝土固化，这些绞线就会被拉紧，从而压缩混凝土，使其能够承受更大的荷载并抵抗开裂。后张预应力施工在桥梁和停车场等大跨度结构中特别有益，因为传统的混凝土方法在强度和稳定性方面可能难以满足要求。

后张预应力施工的主要优点之一是能够减少结构所需的材料。通过利用钢绞线的拉伸强度，工程师可以设计出更薄的板和更轻的梁，而不影响安全性。这不仅节省了材料成本，还降低了建筑物的整体重量，从而减少了基础要求，并可能缩短施工时间。

此外，后张预应力施工还允许建筑设计的更大灵活性。由于能够在没有中间支撑的情况下创造更长的跨度，建筑师可以探索更具创新性和开放性的布局。这在商业建筑中尤为重要，因为开放空间在美学和功能上都是理想的选择。后张预应力施工的应用不仅具有美学优势；它显著提高了结构在各种条件下的性能。例如，采用这种技术建造的结构表现出对地震力的增强抵抗力，非常适合地震频发地区。钢缆的拉紧作用抵消了在此类事件中发生的拉伸力，为安全提供了额外保障。除了抗震能力，后张预应力施工在暴露于恶劣天气条件的环境中也表现良好。引入到混凝土中的压缩力有助于防止水渗透和随后的冻融损害，从而延长结构的使用寿命。这种耐久性使其成为基础设施项目（如高速公路和桥梁）的首选，因其在耐用性和维护方面至关重要。然而，尽管后张预应力施工的好处显著，但需要注意的是，这种技术需要熟练的劳动力和仔细的规划。张拉系统的安装必须精确执行，以确保结构的安全性和有效性。此外，材料和专业设备的成本可能高于传统方法，这可能会使一些建筑商不愿采用这种技术。总之，后张预应力施工代表了建筑技术的一项重大进步，提供了多种好处，包括材料节省、设计灵活性、增强耐久性以及在各种条件下的性能提升。随着建筑行业的不断发展，采用这些创新方法对于满足现代建筑和基础设施的需求至关重要。工程师和建筑师必须接受这些进步，并将其纳入项目中，以创建更安全、更高效和更可持续的建筑。