摘 要
随着现代桥梁工程向大跨度、复杂结构发展，传统预应力施工技术面临诸多挑战。为提高施工精度与效率，本研究引入智能预应力系统并对其在桥梁施工中的应用进行全面评估。该系统集成了高精度传感器网络、实时数据采集与分析平台以及自动化控制装置，实现了对预应力张拉全过程的智能化管理。通过对比分析某大型斜拉桥的实际施工数据发现，智能系统能够有效减少人为误差，将预应力施加精度提高至98%以上，显著优于传统方法。同时，基于物联网技术的数据共享机制使得施工过程更加透明可控，为质量追溯提供了可靠依据。本研究创新性地提出了“预应力状态预测模型”，利用机器学习算法对施工参数进行优化调整，有效解决了传统施工中常见的应力损失问题。通过对多座不同类型桥梁的实际应用验证，证明该系统具有良好的适应性和推广价值，不仅提高了施工效率，还大幅降低了后期维护成本。研究表明，智能预应力系统的应用标志着桥梁建设领域的一次重要技术革新，为实现智慧建造提供了新的思路和技术支撑。
关键词：智能预应力系统；预应力施工精度；桥梁工程；预应力状态预测模型；物联网数据共享机制
Abstract
As modern bridge engineering evolves towards longer spans and more complex structures, traditional prestressing construction technologies face numerous challenges. To enhance construction accuracy and efficiency, this study introduces an intelligent prestressing system and provides a comprehensive evaluation of its application in bridge construction. The system integrates a high-precision sensor network, real-time data acquisition and analysis platforms, as well as automated control devices, achieving intelligent management throughout the prestressing process. Comparative analysis of actual construction data from a large-scale cable-stayed bridge reveals that the intelligent system effectively reduces human error, increasing the accuracy of prestress application to over 98%, significantly outperforming conventional methods. Moreover, the data sharing mechanism based on Internet of Things (IoT) technology enhances transparency and controllability in the construction process, providing reliable evidence for quality traceability. This research innovatively proposes a "prestressing state prediction model," utilizing machine learning algorithms to optimize construction parameters, effectively addressing common stress loss issues in traditional construction. Practical applications in multiple types of bridges have verified the system's excellent adaptability and promotion value, not only improving construction efficiency but also substantially reducing maintenance costs. The study demonstrates that the application of the intelligent prestressing system represents a significant technological innovation in the field of bridge construction, offering new ideas and technical support for smart construction.
Keywords：Intelligent Prestressing System；Prestressing Construction Accuracy；Bridge Engineering；Prestressing State Prediction Model；Internet Of Things Data Sharing Mechanism
目 录
摘 要 I
Abstract II
引 言 1
第一章 智能预应力系统概述 2
1.1 智能预应力系统原理 2
1.2 系统构成与功能 2
1.3 技术发展历程 3
第二章 施工应用关键技术 5
2.1 应力监测技术 5
2.2 张拉控制方法 5
2.3 数据反馈机制 6
第三章 工程实施效果评估 8
3.1 结构安全性评价 8
3.2 施工效率分析 8
3.3 成本效益对比 9
第四章 实际工程案例研究 10
4.1 案例项目概况 10
4.2 应用过程总结 10
4.3 经验与启示 11
结 论 13
参考文献 14
致 谢 15
