Design Principles for Ultra-high Performance Concrete Structures(PDF)
《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]
- Issue:
- 2017年05期
- Page:
- 59-67
- Research Field:
- Publishing date:
Info
- Title:
- Design Principles for Ultra-high Performance Concrete Structures
- Author(s):
- FANG Zhi; ZHENG Hui; YANG Jian; SU Jie; HUANG Zheng-yu
- College of Civil Engineering, Hunan University
- Keywords:
- ultra high-performance concrete; reactive powder concrete; structural design; technical standard; design method
- PACS:
- -
- DOI:
- -
- Abstract:
- The national standard about reactive powder concrete(RPC) products, Reactive Powder Concrete （GB/T 31387—2015）, has been issued in 2015, but there is no any technical specification about the structural design of RPC structures in present China. With the compiling of Hunan provincial standard of Technical Specification for Reactive Powder Concrete Structures, the main design methods of Ultrahigh performance RPC structures were discussed, and the main contents and some design consideration were introduced. By introducing the influence coefficient about steel fiber βv, βp, βw, βB respectively and based on the reliability, the shear bearing capacity, punching shear capacity, crack width and deflection calculation formula were acquired. The results show that the standard values of axial compressive strength and initial crack strength of the RPC are 0.7 times and 0.047 times of cube compressive strength respectively.The tensile strength is related to fiber volume and fiber shape parameters, and the influence coefficient of steel fiber on axial tensile strength is 0.15. Elastic moduli of RPC100RPC180 are between 40.048.6 GPa.Due to safety, the rules about flexural bearing capacity dont consider the tensile contribution of RPC in the tension zone.
Last Update: 2017-09-11