Effective Length of Columns - AISC 360-16 скачать в хорошем качестве

Effective Length of Columns - AISC 360-16

An updated version of this presentation is available here:    • Effective Length of Columns - AISC 36...   This presentation addresses the determination of effective lengths of columns using alignment charts consistent with the effective length method in Appendix 7 of the 2016 AISC Specification. Building upon earlier lectures which addressed Euler buckling of columns and the basis of the flexural buckling provisions included in the AISC specification, the idea of an effective length factor is described in more detail and a procedure is introduced to determine the effective length factor for columns and various types of steel frames. 0:00 – Introduction 0:33 – Definition of Effective Length 1:38 – Acceptable Methods of Design for Stability 3:09 – Restraint of Columns in Steel Frames 5:51 – Introduction of Alignment Charts 9:12 – Rotational Restrain at Column Bases 11:08 – In-Plane vs Out-of-Plane Restraint 13:32 – Stability Columns vs Gravity Columns / Leaning Columns 14:34 – General Procedure for Determining an Effective Length Factor 15:28 – Assumptions and Limitations 16:04 – Stiffness Reduction Factor 18:06 – General Procedure for Using the Stiffness Reduction Factor 20:06 – Influence of Various Connection Types 25:06 – Conclusions Keywords: ASCE 7-16: 2016 American Society of Civil Engineers Minimum Design Loads and Associated Criteria for Buildings and Other Structures AISC 360-16: American Institute of Steel Construction 2016