AlHamaydeh Mohammad, Elkafrawy Mohamed, Banu Shaziya
Department of Civil Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates.
Ph.D. Program in Material Science and Engineering, College of Arts and Sciences in Collaboration with College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates.
Materials (Basel). 2022 Apr 14;15(8):2888. doi: 10.3390/ma15082888.
The superior mechanical characteristics of ultra-high-performance concrete (UHPC) have attracted the interest of many researchers worldwide. Researchers have attempted to perform comparative analyses on the behavior of UHPC versus conventional and high-strength concrete, with their aim being to gain more insights into the difference between different types of concrete. However, the current state-of-the-art revealed no direct comprehensive comparisons between their behaviors in ductile coupled shear walls under seismic loading. This paper explores a comprehensive side-by-side comparison in terms of seismic behavior and cost analysis for four 60-story archetype buildings. The reference building was designed using high-strength concrete with a strength of 60 MPa. The other three archetype variations incorporated three different UHPC grades: 150 MPa, 185 MPa, and 220 MPa. The plan configuration and the lateral force-resisting system (LFRS) were chosen according to the most common practice in the UAE. The main objective is to report the effect of UHPC on the LFRS (ductile coupled shear walls). Moreover, a simplified initial cost analysis (materials and labor) design was performed. The findings of this paper indicate that the use of UHPC is capable of improving the seismic performance behavior of the lateral system as well as reducing the total initial costs.
超高性能混凝土（UHPC）卓越的力学性能吸引了全球众多研究人员的关注。研究人员试图对超高性能混凝土与传统混凝土和高强度混凝土的性能进行对比分析，目的是更深入地了解不同类型混凝土之间的差异。然而，目前的研究现状表明，在地震作用下延性连梁剪力墙中，尚未有关于它们性能的直接全面比较。本文针对四栋60层原型建筑，在抗震性能和成本分析方面进行了全面的对比。参考建筑采用强度为60MPa的高强度混凝土设计。其他三个原型变体采用了三种不同等级的超高性能混凝土：150MPa、185MPa和220MPa。平面布局和抗侧力体系（LFRS）根据阿联酋最常见的做法选定。主要目的是报告超高性能混凝土对抗侧力体系（延性连梁剪力墙）的影响。此外，还进行了简化的初始成本分析（材料和人工）设计。本文的研究结果表明，使用超高性能混凝土能够改善侧向体系的抗震性能，同时降低初始总成本。
