Suspender Replacement Method for Long-Span Concrete-Filled Steel Tubular Arch Bridges and Cable Force Measurement Based on Frequency Method

Figure 20

Frequency spectra of some suspenders: frequency charts of (a) S1n suspender; (b) S2n suspender; (c) S3n suspender; (d) S4n suspender; (e) S5n suspender; (f) S6n suspender; (g) S7n suspender; (h) S8n suspender; (i) S9n suspender; and (j) S10n suspender.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

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(j)