REF: NCEES Structural 1 Sample Questions & Solutions © 2008, problem 129
AASHTO 4th edition with 2008 interm sections
Problem 129, effective span between bridge girders question is not consistent from what I have found in the 4th edition with Interm 2008 sections. The practice book references the 3rd edition but I'm not confident that what I have found in the 4th edition is the right answer. Nor can I find in chapter 4 within the 4th edition the same method that they used to solve the problem.
In the 4th edition section 9.7.2.3, Effective length is the distance between flange tips + the flange overhang, taken as the distance from the extreme flange tip to the face of the web. Basically for a W shape this is centerline of beam to centerline of beam.
The answer provided for problem 129 takes the clear span 8' - 16.5 (flange width) + 16.5/2 ~ 7'-4".
Can anyone point me to the correct section in the 4th edition that would correctly answer this problem?
Thank you
AASHTO 4th edition with 2008 interm sections
Problem 129, effective span between bridge girders question is not consistent from what I have found in the 4th edition with Interm 2008 sections. The practice book references the 3rd edition but I'm not confident that what I have found in the 4th edition is the right answer. Nor can I find in chapter 4 within the 4th edition the same method that they used to solve the problem.
In the 4th edition section 9.7.2.3, Effective length is the distance between flange tips + the flange overhang, taken as the distance from the extreme flange tip to the face of the web. Basically for a W shape this is centerline of beam to centerline of beam.
The answer provided for problem 129 takes the clear span 8' - 16.5 (flange width) + 16.5/2 ~ 7'-4".
Can anyone point me to the correct section in the 4th edition that would correctly answer this problem?
Thank you