IS 456:2000 के अनुसार, ऊर्ध्वाधर कतरनी रकाब (vertical shear stirrups) की अधिकतम दूरी 0.75d तक सीमित है, और 45° पर झुकी हुई कतरनी रकाब के लिए यह सीमा कितनी है?

Which of the following is categorized as a long-term loss of prestress in a prestressed concrete member?

As per IS 456:2000, in the limit state design of a flexural member, the strain in the reinforcing bars under tension at the ultimate state should not be less than ______ (where fy is the characteristic strength of steel and Es is the modulus of elasticity of steel).