Establishment of Pre-stress in Flat Beam of Tube-in-tube Structure[J]. Journal of Civil and Environmental Engineering, 2005, 27(1): 56-61. DOI: 10.11835/j.issn.1674-4764.2005.01.012.
This paper introduces the analysis and test of prestressed flat beams in tube-in-tube concrete structures at different construction stages; moreover
the corresponding structural analysis models with FEA program are set up. Through the comparative analysis between the results of construction field test and that of calculation with FEA method
it proves the reliability of the primary design method; meanwhile
it also indicates that establishment of prestressing force and prestressed effects in similar structures is a complex procedure and should be noticed.