AISC 360-05 PDF

AISC 360-05 PDF

Specification for Structural Steel Buildings (ANSI/AISC ) – March 9, Specification for Structural Steel Buildings (ANSI/AISC ). Note: Although the ANSI/AISC version of the code officially replaces the ANSI/AISC code, this latter remains available in the. You want to design steel members according American code ANSI-AISC Is it available in Autodesk Robot Structural Analysis?.

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Different AISC steel design codes and commands to invoke each.

Consideration of Initial Imperfections new section The effects of initial imperfections can be accounted for using either direct modeling or the use of notional loads covered previously in Appendix 7, Section 7. The thickness of a stiffener shall not be less than one-half the thickness of the flange or moment connection plate delivering the concentrated load, nor less than the width divided by 16 was 15 in the Specification.

A user note has been added stating the initial displacements should be similar in configuration to displacements caused by loading and buckling with magnitudes based on permissible construction tolerances given in the AISC Code of Standard Practice. Web Local Buckling No changes have been made to this section. Design for Ponding was Section B3. Nodal Bracing The symbol representing the required strength of nodal bracing, Mbr, has been changed to Mrb.

A numbered list is now provided for effects that should be considered when analyzing the stability of a structure.

ANSI/AISC Code check

The welding code, AWSD1. The classification for flexure remains the same while compression members are now classified as either slender or nonslender. In addition, the Specification added a paragraph on field welding of attachments to installed embedments in contact with concrete. It also states when NDT may be performed by approved fabricators.

A user note has been added to this section stating that the strength of a bolt group be taken as the sum of the effective strengths of the individual fasteners, where the effective strength of an individual fastener may be taken as the lesser of the fastener shear strength based on the provisions of sisc section or that of the bearing strength at the bolt hole from the provisions of Section J3.


Pro implement AISI edition. This user note also states that the end connection should be designed to resist slip.

The provision for when lateral bracing is attached to a stiffener has been removed. In Equation G, the variable, a, has been changed to b. Tensile Strength No changes have been made to this section. The channel shear connecter is now defined as a hot-rolled channel anchor. Structural Design 360-0 4. Unframed Ends of Beams and Girders No changes have been made to this section.

Steel Castings and Forgings No changes have been made to this section. Compression Joints No changes have been made to this section.

The bracing which defines the unbraced length will have stiffness sufficient to control member movement at braced points, which is covered in Appendix 6. This table is similar to the flexural member selection table, Table User Note F1.

These exceptions were not listed in the Specification. Nominal Strength of Composite Sections Added to this section is the statement that local buckling effects do not need to be considered for encased composite members. Equation K formerly Equation K in the Specification has been revised with the removal of the variable Qf.

Encased Composite Members In the Specification this section contained provisions for both encased and filled members. These new equations are similar to Equations A and A from the Specification, but they now allow for Lpd to be explicitly calculated without determining whether reverse curvature or single curvature are present.

Definitions of Parameters No changes have been made to this section. Two new figures have been added for Case 2 examples, one is a single angle the other is a tee shape. Contact Surfaces No changes have been made to this section. Help Center Find new research papers in: The material in Section E5 c has been moved to Section E5 with the exception of the specific examples of different end conditions, requiring the use of Chapter H provisions, which has been removed.

Negative Flexural Strength No changes have been made to this section.

Strength The limit state of yielding is no longer applicable when determining the base material strength and the weld metal strength. One such expansion is the addition of three tables Tables N5.


A definition of, b, has been added to this section. Filled Composite Members The provisions for steel anchor detailing for filled composite members have been moved from Section I2. Direct Analysis Method of Design new section This section refers to sections C2 and C3 for the calculation of required and available strengths, respectfully, for this method of analysis.


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ANSI/AISC 360-05 – Specification for Structural Steel Buildings

Doubly and Singly Symmetric Members Subject to Flexure and Tension The term tensile strength has been changed to axial strength in the variable definitions. When a rolled heavy shape is welded to the surface of another shape using groove welds the Charpy V-notch requirement only applies to the shape with the weld metal fused through the cross section.

The list has been changed so component and connection deformations are now categorized under all other deformations that contribute to the displacement of the structure. Limitations Filled composite sections are now classified for local buckling using the limiting width-to-thickness ratios in Table I1.

The exception to the above requirement has been changed as follows: The variable for nominal axial compressive strength without length effects, Po, has been changed to Pno.

Changing units for design as per AISC code. Questions about this article, topic, or product? The content of this section have been moved from Appendix 7 in the Specification. Pro Import Export Solutions. The resistance factor for LRFD and safety factor for ASD are given for calculating the nominal shear strength of the reinforced concrete portion alone or the reinforced concrete with the steel section, they are as follows: Residual Stress and Partial Yielding Effects The effect of residual stresses and partial yielding must be part of the inelastic analysis; this was not specified in the Specification.

Unidentified Steel This section is expanded to include a statement that the use of unidentified steel shall be subject to the approval of the engineer of record.