高强高性能混凝土在高层建筑结构应用技术研究

Study on Application Technology of High-strength and High-performance Concrete in High-rise Buildings

在提升结构安全性和功能性的前提下,为节约、高效利用材料,实现绿色、可持续发展,高强高性能混凝土的推广应用已成为我国高层建筑结构领域的发展方向之一。本文进行了28个高强钢筋高强高性能混凝土柱压弯、抗震性能试验以及60个高强高性能混凝土内置钢板-混凝土组合剪力墙的受剪、受弯抗震性能试验,结果表明:(1)同时提高混凝土、钢筋两种材料强度可明显提高混凝土柱的抗震性能。(2)高强高性能混凝土、中部钢板可显著改善组合剪力墙的受剪、受弯性能。研究成果为高强高性能混凝土在高层建筑结构中的推广应用奠定了基础。(3)对高强高性能混凝土高层建筑结构体系抗震设计理论及方法进行了展望。

In the premise of promoting the structure security and function, high-strength and high-performance concrete （HHC） has been one of developing trends in the field of high-rise buildings, for saving and high-efficiency utilization of materials, realization of green and sustainable development. 28 specimens for flexural and seismic performances of high-strength rebar and HHC columns and 60 specimens for seismic performances of HHC builtin steel-concrete composite shear walls under shear and flexural loads are researched experimentally, the results show that （1） the seismic performances of RC column are improved significantly by uprating strength of concrete and rebar at same time. （2） HHC and middle steel plate can improve the seismic performances of composite shear wall remarkably under shear and ftexural loads. The achievement establishes the foundation for application widely of HHC in high-rise buildings. Furthermore, seismic design theory and approach for HHC high-rise buildings in the future is prospected.