wyeit
Structural
- Jul 8, 2005
- 6
I'm currently designing a bridge abutment for a pre-engineered steel bridge.
I have done similar designs in the past.
The bridge is a 40'x16' single span with one fixed bearing and one expansion bearing.
A colleague advised me that I should design the abutment stem assuming that the bridge superstructure provides lateral support.
Through my research and study I have found that if a bridge has a fixed bearing at one end and an expansion at the other both abutments should be designed as free cantilevers. Is this correct?
Should the stem deflection be calculated to determine adequate stiffness? If so, where could I find a good reference outlining this procedure?
Thank you for your time,
Wyoming E-I-T
I have done similar designs in the past.
The bridge is a 40'x16' single span with one fixed bearing and one expansion bearing.
A colleague advised me that I should design the abutment stem assuming that the bridge superstructure provides lateral support.
Through my research and study I have found that if a bridge has a fixed bearing at one end and an expansion at the other both abutments should be designed as free cantilevers. Is this correct?
Should the stem deflection be calculated to determine adequate stiffness? If so, where could I find a good reference outlining this procedure?
Thank you for your time,
Wyoming E-I-T