摘 要
装配式建筑因其高效施工、绿色环保等优势，近年来受到广泛关注。然而，连接节点作为装配式建筑结构的关键组成部分，其设计与力学性能直接影响整体结构的安全性和可靠性。本研究旨在深入探讨装配式建筑中连接节点的设计方法及其力学性能表现，为优化结构设计提供理论支持。研究采用理论分析、数值模拟和试验验证相结合的方法，系统评估了不同类型连接节点在静力荷载和动力荷载作用下的力学行为。通过引入新型剪力键设计并结合高强螺栓连接方式，显著提升了节点的抗剪能力和延性性能。同时，基于有限元分析结果，提出了改进的连接节点设计准则，有效降低了应力集中现象并提高了结构的整体稳定性。研究结果表明，优化后的连接节点在承载能力、变形协调性和抗震性能等方面均表现出优异特性。此外，本研究还建立了适用于装配式建筑连接节点的简化计算模型，为工程实际应用提供了便捷工具。总体而言，本研究不仅揭示了连接节点力学性能的关键影响因素，还为装配式建筑的标准化设计和广泛应用奠定了重要基础，具有显著的学术价值和工程意义。
关键词：装配式建筑；连接节点；力学性能
ABSTRACT
Prefabricated buildings have gained significant attention in recent years due to their advantages of efficient construction and environmental friendliness. However, as a critical component of prefabricated building structures, the design and mechanical performance of connection nodes directly affect the safety and reliability of the overall structure. This study aims to comprehensively investigate the design methods and mechanical performance of connection nodes in prefabricated buildings, providing theoretical support for optimizing structural design. By integrating theoretical analysis, numerical simulation, and experimental validation, the mechanical behavior of various types of connection nodes under static and dynamic loads was systematically evaluated. The introduction of a novel shear key design combined with high-strength bolted connections significantly enhanced the shear resistance and ductility of the nodes. Furthermore, based on finite element analysis results, improved design criteria for connection nodes were proposed, effectively reducing stress concentration and enhancing the overall stability of the structure. The findings indicate that the optimized connection nodes exhibit superior characteristics in terms of load-carrying capacity, deformation compatibility, and seismic performance. Additionally, a simplified calculation model applicable to connection nodes in prefabricated buildings was established, offering a convenient tool for practical engineering applications. Overall, this study not only elucidates the key influencing factors of the mechanical performance of connection nodes but also lays an important foundation for the standardized design and widespread application of prefabricated buildings, demonstrating significant academic value and engineering significance.
Keywords: Assembly Building; Connection Node; Mechanical Properties
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 装配式建筑连接节点的研究背景与意义 1
1.2 国内外连接节点设计与力学性能研究现状 1
1.3 本文研究方法与技术路线 2
第2章 连接节点的设计原理与关键要素 3
2.1 装配式建筑连接节点的基本类型 3
2.2 连接节点设计的力学基础分析 3
2.3 关键参数对节点性能的影响机制 4
2.4 设计优化中的约束条件与目标函数 4
第3章 连接节点的力学性能测试与评估 6
3.1 力学性能测试的主要指标与方法 6
3.2 不同工况下节点受力特性分析 6
3.3 实验数据处理与结果验证 7
3.4 性能评估标准与改进方向 7
第4章 连接节点设计优化与工程应用分析 9
4.1 基于有限元的节点优化设计方法 9
4.2 新型连接方式的可行性研究 9
4.3 工程案例中节点设计的应用实践 10
4.4 未来装配式建筑节点发展的趋势探讨 10
结论 12
参考文献 13
致 谢 14
