Unity Design Method for Section under Service Loads from Pre-stressed Concrete Members to Reinforced Concrete Members using Interaction Diagram between Bending Moment and Pre-stressing Force
By T. Nakatsuka, K. kanngawa and Y. Shimada
Concrete Journal, Vol.49, No.7, Jul. 2011
- Synopsis
- This report introduces investigations on unity design method for section under service loads from prestressed concrete members (PC) to reinforced concrete members (RC) using bending moment versus compression force diagram. Main contents are as follows, (1) Design processes for sections of PC-RC can be visualized on bending moment-versus pre-stressing force plane, (2) Equations to estimate relations between pre-stressing force, tensile reinforcement ratio and its stress for pre-stressed reinforced concrete members (PRC) are derived. (3) Practical exercises are presented to understand the design method easily for PC and PRC beam sections.
- Keywords:
- pre-stressed concrete. pre-stressed reinforced concrete, reinforced concrete, unity design method, bending moment versus compression force diagram, practical design exercises
