DESIGN OF TEMPERATURE AND SHRINK STRESS AND CONTROL MEASURE OF SUPER-LONG CONCRETE FRAME STRUCTURE

The key of super-long concrete frame structure is to control temperature and concrete shrinkage stresses, according to the analysis of PMSAP and ANSYS，their results and variation tendencies are generally consistent. Owing to construction and equipment requirements，the expansion and contraction joints of super-long concrete frame structures can not be installed，then temperature difference between inside and outside and concrete shrinkage should be decreased. Therefore heat insulation layers and flexible joints should be used to reduce influences of temperature stress; applying normal rebar and prestressing reinforcing bar can control crack effectively.