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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COMPARISON OF ANSI/AISC TO ANSI/AISC | bill greg –
Built-Up Heavy Shapes No changes have been made to this section. Several new sections have been added based on the requirements of this method. Relative Bracing The symbol representing the required brace strength has been changed from Pbr to Prb. Plug and Slot Welds J2. Aiwc 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.
No additional changes have been made to this section. Leg Local Buckling No changes have been made to this section. Dimensional Requirements Parts of this section have been reworded to improve clarity.
Share History More Cancel. Relative Bracing No changes have been made to this aisd. A user note has been added stating that AWS C4. Two new figures have been added for Case 2 examples, one is a 360-5 angle the other is a tee shape. The symbol representing the bearing length of the load, measured parallel to the axis of the HSS member, N, has been changed to lb.
A new user note explains that the degradation in steel at these temperatures need not be considered in calculating member strengths. 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 360-5 Code of Standard Practice.
The design and allowable torsional strength has been changed to available torsional strength. Figures are for bolted connections designed to bear, meeting the requirements of slip-critical connections.
A user note is included in this section defining the term design, which is the combination of analysis to determine 3600-05 strength and 36-005 components to have adequate available strength. Compression Flange Local Buckling A definition of h has been added to this section.
Limitations No changes have been made to this section. External Force Applied Concurrently to Steel and Concrete This new section gives the provision for an encased or filled composite member with force applied concurrently to the concrete and steel sections.
ANSI/AISC Code check
Case 8 is expanded to include double angles. The user note has been expanded to include the value of Cb for equal end moments of the same sign and also refers to the commentary for detailed analysis for singly symmetric members.
They include changes to the design provision for both compression and flexural members. Design of Connections Added to this section is the statement aic self-limiting inelastic zisc are permitted. Section e has been added defining, b, the width of perforated cover plates. Lateral-Torsional Buckling A user note has been added stating that Equations F and F in the Specification produce identical solutions as the equations used in zisc editions of the LRFD Specification but are similar in appearance to the equations used for singularly symmetric sections.
Also, bolt bearing with short-slotted holes parallel to the direction of tension are to be assumed at the end of the slot. Added is a statement that the available compressive strength need not be less than that of the bare steel member.
Difference between AISC 9th ed. and 360-05/10
As such, these limitations have been moved from Section C2. You should refer to the 3600-5 codes for more details. Changing units for design as per AISC code.
Access Hole NDT This new section specifies when quality assurance should test thermally cut surfaces of access holes using magnetic particle testing or penetrant testing. Click here to sign up.
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. Coordinated Inspection This new section states that if a task is noted to be performed by both quality control and quality assurance, then it is permissible to have the inspection aksc performed by only party if it is coordinated between the quality control aiisc and the quality assurance inspector.
Direct Bond Interaction This new section gives equations for force transfer in filled rectangular and round steel sections by direct bond interaction. This section now references Appendix 7 in addition to Chapter C, for the determination of the effective length factor, K. Minimum Edge Distance No changes have been made to this section. Limit states need only be checked when connection geometry or loading is within the parameters given in the description of the limit state.
ANSI/AISC 360-05 Code check
Applies To Product s: Compressive Strength The provisions of this section now specifically apply to axially loaded doubly symmetric encased composite members. Excessive thermal expansion may cause the concrete to spall or crack and may cause excessive stress in the embedment anchors.
User table for designing 10 Gage channel.