摘 要
随着城市化进程的加快和土地资源的日益紧张，超高层建筑已成为现代城市建设的重要组成部分，而高性能混凝土（HPC）作为其核心材料，在结构安全性和耐久性方面发挥着关键作用本研究以超高层建筑为背景，系统探讨了高性能混凝土在复杂工况下的应用特性及其性能优化策略通过理论分析、实验研究与数值模拟相结合的方法，重点考察了不同配合比设计、外加剂种类及施工工艺对混凝土力学性能、工作性能和长期耐久性的影响研究表明，通过优化矿物掺合料比例和引入高效减水剂，可显著提升混凝土的流动性与抗离析能力，同时改善其抗压强度和抗裂性能此外，基于实际工程案例的验证表明，采用分层浇筑与温控技术能够有效降低大体积混凝土的温度裂缝风险，从而提高整体结构的稳定性本研究创新性地提出了一种基于多目标优化算法的配合比设计方法，实现了混凝土性能与经济成本之间的平衡，并为超高层建筑中高性能混凝土的应用提供了科学依据主要贡献在于建立了适用于复杂环境条件下的混凝土性能评价体系，为推动高性能混凝土在超高层建筑中的广泛应用奠定了理论和技术基础
关键词：超高层建筑；高性能混凝土；性能优化
ABSTRACT
With the acceleration of urbanization and the increasing scarcity of land resources, super-high-rise buildings have become an essential component of modern urban construction. High-performance concrete (HPC), as a core material, plays a critical role in ensuring structural safety and durability. This study, against the backdrop of super-high-rise building construction, systematically investigates the application characteristics and performance optimization strategies of high-performance concrete under complex conditions. By integrating theoretical analysis, experimental research, and numerical simulation, the study focuses on the influence of different mix proportion designs, types of admixtures, and construction techniques on the mechanical properties, workability, and long-term durability of concrete. The findings indicate that optimizing the proportion of mineral admixtures and incorporating highly efficient water reducers can significantly enhance the fluidity and anti-segregation capability of concrete, while simultaneously improving its compressive strength and crack resistance. Furthermore, validation based on actual engineering cases demonstrates that the adoption of layered pouring and temperature control technologies can effectively reduce the risk of thermal cracking in mass concrete, thereby enhancing the overall stability of the structure. Innovatively, this study proposes a mix proportion design method based on multi-ob jective optimization algorithms, achieving a balance between concrete performance and economic cost, and providing a scientific basis for the application of high-performance concrete in super-high-rise buildings. The primary contribution lies in establishing a concrete performance evaluation system suitable for complex environmental conditions, laying a theoretical and technical foundation for promoting the widespread application of high-performance concrete in super-high-rise buildings.
Keywords: Super High-Rise Building; High-Performance Concrete; Performance Optimization
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 高性能混凝土应用背景与意义 1
1.2 国内外研究现状分析 1
1.3 本文研究方法概述 2
第2章 高性能混凝土材料特性优化研究 3
2.1 高性能混凝土组成与基本性能 3
2.2 材料配比对强度的影响分析 3
2.3 耐久性优化的关键因素探讨 4
2.4 环境适应性与可持续发展 4
第3章 高性能混凝土在超高层建筑中的施工技术研究 6
3.1 超高层建筑对混凝土性能的要求 6
3.2 泵送技术与施工效率提升 6
3.3 施工过程中的质量控制策略 7
3.4 特殊环境下的施工挑战与应对 7
第4章 高性能混凝土在超高层建筑中的性能评估与改进研究 9
4.1 结构安全性与性能评估方法 9
4.2 抗震性能优化的研究与实践 9
4.3 绿色建造与环保性能提升 10
4.4 经济效益与社会效益分析 10
结论 12
参考文献 13
致 谢 14
