Advanced Structural Steel Design

CE 591 Advanced Structural Steel Design Fall 2013 Lectures 1 –3

Lecture 1: Course introduction

Reading:  AISC Part 16 Chapter B, Sections B2 to B3.4 (16.1-10 to 16.1-11)  AISC Part 16 Commentary B2 to B3.3 (16.1-254 to 16.1-260)  AISC Part 2, Design Fundamentals (LRFD, Serviceability sections only) (2-10 to 2-13)

Objectives:  Define course focus, requirements, and organization  Review the differences between ASD & LRFD, and the basic concepts behind LRFD  Define “limit state” and review strength and serviceability limit states

Lecture 2: Plate Girders

Reading:  AISC Sections F1, F5, G1 – G3; Commentary F1, F5, G1 – G3  AISC Part 3 (up to ‘Available Shear Strength’ 3-7) Online Presentation:  http://www.aisc.org/UploadedContent/2010NASCCSessions/S6/ Slides 47-54 only, starting with slide titled, “TESTS ON LONGITUDINALLY STIFFENED PLATE GIRDERS” If needed:  Salmon et al. Sections 7.1 – 7.3, 7.7, 9.1 – 9.6  Salmon et al. Sections 11.1, 11.2  Geschwindner Sections 7.1 – 7.2

Objectives:  Identify limit states for beams  Classify beams in terms of compact, non-compact, and slender  Describe how to compute design flexural strength of beams according to AISC-LRFD  Define ‘plate girder’ and describe limit states for a plate girder  Explain when design of plate girders differs from design of rolled shapes for flexure and shear

Lecture 3: Plate Girders; Buckling

Reading:  AISC Section F13.2 If needed:  Salmon et al. Sections 11.3, 11.5

Objectives:  Explain vertical flange buckling limit state and how it affects plate girder web design  Explain “bend buckling” of the web and its effect on flexural strength