AISCAISC 360-22
Appendix 5 Evaluation of existing structures

5.3evaluation by structural analysis

PDF page 336 · AISC 360-22

5.3.1 Dimensional Data

All dimensions used in the evaluation, such as spans, column heights, member spacings, bracing locations, cross-section dimensions, thicknesses, and connection details, shall be determined from a field survey. Alternatively, it is permitted to determine such dimensions from applicable project design or fabrication documents with field verification of critical values.

5.3.2 Strength Evaluation

Forces (load effects) in members and connections shall be determined by structural analysis applicable to the type of structure evaluated. The load effects shall be determined for the loads and factored load combinations stipulated in Section B2.

Table A-5.3.1 Nominal Strength of Rivets

Description of RivetNominal Tensile Strength,
Fnt, ksi (MPa)[a]
Nominal Shear Strength,
Fnv, ksi (MPa)[b]
A502, Grade 1, hot-driven rivets45 (310)25 (170)

[a]Static loading only. [b]Refer to Table J3.2, footnote c.

The available strength of members and connections shall be determined from applicable provisions of Chapters B through K and Appendix 5 of this Specification.

5.3.2a Rivets

The design tensile or shear strength, ϕRn\phi R_{n}, and the allowable tensile or shear strength, Rn/ΩR_{n} / \Omega, of a driven rivet shall be determined according to Section J3.7, and driven rivets under combined tension and shear shall satisfy the requirements of Section J3.8,

where

Ab=A_{b}= nominal body area of undriven rivet, in. 2( mm2){ }^{2}\left(\mathrm{~mm}^{2}\right)

Fnt=F_{n t}= nominal tensile strength of the driven rivet from Table A-5.3.1, ksi (MPa)

Fnv=F_{n v}= nominal shear strength of the driven rivet from Table A-5.3.1, ksi (MPa)

5.3.3 Serviceability Evaluation

Where required, the deformations at service loads shall be calculated and reported.

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