Open AccessInference of Short-Term Maximum Crack Width of RC Flexural Members Based on Interval Estimation Method
Author(s) -
Jitao Yao,
Yan Han-bing,
Maode Yan
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/780/3/032001
Subject(s) - serviceability (structure) , flexural strength , dimensionless quantity , term (time) , range (aeronautics) , structural engineering , limit state design , limit (mathematics) , interval (graph theory) , reinforced concrete , mathematics , computer science , algorithm , materials science , mathematical analysis , engineering , mechanics , physics , composite material , quantum mechanics , combinatorics
The design method based on observation and experimental model only considers the design of ultimate limit state in related research, the application range is not wide. This paper takes the short-term maximum crack width of RC flexural members as an example, puts forward the application of this method in the design of serviceability limit state. Dimensionless method was used to collect 4665 pieces of RC flexural member crack width data, and the normality test was performed to obtain the type of probability distribution obeyed by the crack width. Considering the situation without parameter information and known coefficient of variation, a direct estimation formula for short-term maximum crack width of RC flexural members based on interval estimation method is proposed.