Auxiliary Piers on Long-Span Specially Shaped Mixed Steel Structure Main Tower Cable-Stayed Bridge: Research on the Impact on the Dynamic Performance

Table 6

The influence of the number of auxiliary piers on the natural frequency of cable-stayed bridges.

Order	1	2	3	4	5	6	7	8
Model 3 vs. Model 2 increment of natural frequency (%)	4.0	3.2	2.9	1.9	2.3	3.4	3.2	4.6
Model 5 vs. Model 4 increment of natural frequency (%)	3.6	3.5	4.2	2.4	2.3	3.6	3.5	1.7