Good Day!
For bridge experts there, I just have a question about the provision in BS 5400-4, 6.3.2.4.
It is said in the code, 4.2.2, that cracking in prestressed concrete for each class should be considered for the appropriate load combination. For example, for class 1 member, load combination...
Hello Guys,
I just want your opinion about putting external tendons in horizontally curved box girder bridges. Is it feasible? The external tendons are straight in elevation. I think it may require many deviator. Will it be difficult to do in construction?. Can you please tell me the possible...
"Where the area of spiral and tie reinforcement is not controlled by:
Seismic requirements,
Shear or torsion as specified in Article 5.8, or
Minimum requirements as specified in Article 5.10.6,
the ratio of spiral reinforcement to total volume of concrete core, measured out-to-out of spirals...
Good morning. I just want to know if the formula in aashto lrfd 2012 for elasticity of concrete which is Ec=0.043*wc^1.5*f'c^0.5 is for plain concrete only. The wc for normal weight concrete suggested by aashto is 2320kg/m^3 but for reinforced concrete we used 24kN/m^3 >> 2447.48kg/m^3. Is it...
