Effective Span Length
Effective Span Length
(OP)
I am doing an analysis on a pier cap. See attachment. The pier cap is setting on 4 concrete columns. The bridge is a 4 girder system. Each girder sets over a column. In order to do some work on the bearings, I must jack up the bridge and support it on the pier cap. The problem is that when I put the loads on the cap from the jacking it puts a significant amount of flexure into the cap. More than the cap can handle. The distance between the columns/girders is about 7'. Can I reduce the span length from 7' to something less, say 6' or so. This is being review by the DOT so if I do reduce the span, what reference is available?






RE: Effective Span Length
RE: Effective Span Length
RE: Effective Span Length
The cap is 24" deep. But I did see that it meets the criteria for deep beams.
Where in ACI is the method for analyzing deep beam action. I just seen it call out references.
RE: Effective Span Length
RE: Effective Span Length
RE: Effective Span Length